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-rw-r--r--crypto/kerberosIV/appl/ftp/ftpd/Makefile.in84
-rw-r--r--crypto/kerberosIV/appl/ftp/ftpd/auth.c249
-rw-r--r--crypto/kerberosIV/appl/ftp/ftpd/auth.h109
-rw-r--r--crypto/kerberosIV/appl/ftp/ftpd/extern.h141
-rw-r--r--crypto/kerberosIV/appl/ftp/ftpd/ftpcmd.y1408
-rw-r--r--crypto/kerberosIV/appl/ftp/ftpd/ftpd.c2076
-rw-r--r--crypto/kerberosIV/appl/ftp/ftpd/kauth.c325
-rw-r--r--crypto/kerberosIV/appl/ftp/ftpd/krb4.c372
-rw-r--r--crypto/kerberosIV/appl/ftp/ftpd/krb4.h61
-rw-r--r--crypto/kerberosIV/appl/ftp/ftpd/logwtmp.c136
-rw-r--r--crypto/kerberosIV/appl/ftp/ftpd/pathnames.h55
-rw-r--r--crypto/kerberosIV/appl/ftp/ftpd/popen.c224
12 files changed, 5240 insertions, 0 deletions
diff --git a/crypto/kerberosIV/appl/ftp/ftpd/Makefile.in b/crypto/kerberosIV/appl/ftp/ftpd/Makefile.in
new file mode 100644
index 0000000..55981de
--- /dev/null
+++ b/crypto/kerberosIV/appl/ftp/ftpd/Makefile.in
@@ -0,0 +1,84 @@
+#
+# $Id: Makefile.in,v 1.31 1997/05/02 17:49:27 assar Exp $
+#
+
+srcdir = @srcdir@
+top_srcdir = @top_srcdir@
+VPATH = @srcdir@
+
+topdir = ../../..
+
+SHELL = /bin/sh
+
+CC = @CC@
+YACC = @YACC@
+RANLIB = @RANLIB@
+DEFS = @DEFS@
+CFLAGS = @CFLAGS@
+LD_FLAGS = @LD_FLAGS@
+LIBS = @LIBS@
+LIB_DBM = @LIB_DBM@
+MKINSTALLDIRS = $(top_srcdir)/mkinstalldirs
+
+INSTALL = @INSTALL@
+INSTALL_PROGRAM = @INSTALL_PROGRAM@
+
+prefix = @prefix@
+exec_prefix = @exec_prefix@
+libdir = @libdir@
+libexecdir = @libexecdir@
+transform=@program_transform_name@
+EXECSUFFIX=@EXECSUFFIX@
+
+ATHENA = ../../..
+
+INCTOP = $(ATHENA)/include
+
+LIBTOP = $(ATHENA)/lib
+
+LIBKAFS = @KRB_KAFS_LIB@
+LIBKRB = -L$(LIBTOP)/krb -lkrb
+LIBDES = -L$(LIBTOP)/des -ldes
+LIBOTP = -L$(LIBTOP)/otp -lotp
+LIBROKEN= -L$(LIBTOP)/roken -lroken
+
+PROGS = ftpd$(EXECSUFFIX)
+
+ftpd_SOURCES = ftpd.c ftpcmd.c logwtmp.c popen.c auth.c krb4.c kauth.c
+ftpd_OBJS = ftpd.o ftpcmd.o logwtmp.o popen.o auth.o krb4.o kauth.o
+
+SOURCES = $(ftpd_SOURCES)
+OBJECTS = $(ftpd_OBJS)
+
+all: $(PROGS)
+
+.c.o:
+ $(CC) -c $(CFLAGS) -I$(srcdir) -I$(srcdir)/../common -I$(INCTOP) $(DEFS) $<
+
+install: all
+ $(MKINSTALLDIRS) $(libexecdir)
+ for x in $(PROGS); do \
+ $(INSTALL_PROGRAM) $$x $(libexecdir)/`echo $$x | sed '$(transform)'`; \
+ done
+
+uninstall:
+ for x in $(PROGS); do \
+ rm -f $(libexecdir)/`echo $$x | sed '$(transform)'`; \
+ done
+
+ftpd$(EXECSUFFIX): $(ftpd_OBJS)
+ $(CC) $(LD_FLAGS) $(LDFLAGS) -o $@ $(ftpd_OBJS) -L../common -lcommon $(LIBKAFS) $(LIBKRB) $(LIBOTP) $(LIBDES) $(LIBROKEN) $(LIB_DBM) $(LIBS) $(LIBROKEN)
+
+ftpcmd.c: ftpcmd.y
+ $(YACC) $(YFLAGS) $<
+ chmod a-w y.tab.c
+ mv -f y.tab.c ftpcmd.c
+
+TAGS: $(SOURCES)
+ etags $(SOURCES)
+
+clean cleandir:
+ rm -f *~ *.o core ftpd ftpcmd.c \#*
+
+distclean:
+ rm -f Makefile
diff --git a/crypto/kerberosIV/appl/ftp/ftpd/auth.c b/crypto/kerberosIV/appl/ftp/ftpd/auth.c
new file mode 100644
index 0000000..862eb6d
--- /dev/null
+++ b/crypto/kerberosIV/appl/ftp/ftpd/auth.c
@@ -0,0 +1,249 @@
+/*
+ * Copyright (c) 1995, 1996, 1997 Kungliga Tekniska Högskolan
+ * (Royal Institute of Technology, Stockholm, Sweden).
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the Kungliga Tekniska
+ * Högskolan and its contributors.
+ *
+ * 4. Neither the name of the Institute nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+RCSID("$Id: auth.c,v 1.11 1997/05/04 23:09:00 assar Exp $");
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include <sys/socket.h>
+#endif
+#if defined(HAVE_SYS_IOCTL_H) && SunOS != 4
+#include <sys/ioctl.h>
+#endif
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+
+#include "extern.h"
+#include "krb4.h"
+#include "auth.h"
+
+static struct at auth_types [] = {
+ { "KERBEROS_V4", krb4_auth, krb4_adat, krb4_pbsz, krb4_prot, krb4_ccc,
+ krb4_mic, krb4_conf, krb4_enc, krb4_read, krb4_write, krb4_userok,
+ krb4_vprintf },
+ { 0, 0, 0, 0, 0, 0, 0, 0, 0 }
+};
+
+struct at *ct;
+
+int data_protection;
+int buffer_size;
+unsigned char *data_buffer;
+int auth_complete;
+
+
+char *protection_names[] = {
+ "clear", "safe",
+ "confidential", "private"
+};
+
+
+void auth_init(void)
+{
+}
+
+char *ftp_command;
+int prot_level;
+
+void new_ftp_command(char *command)
+{
+ ftp_command = command;
+}
+
+void delete_ftp_command(void)
+{
+ if(ftp_command){
+ free(ftp_command);
+ ftp_command = NULL;
+ }
+}
+
+int auth_ok(void)
+{
+ return ct && auth_complete;
+}
+
+void auth(char *auth)
+{
+ for(ct=auth_types; ct->name; ct++){
+ if(!strcasecmp(auth, ct->name)){
+ ct->auth(auth);
+ return;
+ }
+ }
+ reply(504, "%s is not a known security mechanism", auth);
+}
+
+void adat(char *auth)
+{
+ if(ct && !auth_complete)
+ ct->adat(auth);
+ else
+ reply(503, "You must (re)issue an AUTH first.");
+}
+
+void pbsz(int size)
+{
+ int old = buffer_size;
+ if(auth_ok())
+ ct->pbsz(size);
+ else
+ reply(503, "Incomplete security data exchange.");
+ if(buffer_size != old){
+ if(data_buffer)
+ free(data_buffer);
+ data_buffer = malloc(buffer_size + 4);
+ }
+}
+
+void prot(char *pl)
+{
+ int p = -1;
+
+ if(buffer_size == 0){
+ reply(503, "No protection buffer size negotiated.");
+ return;
+ }
+
+ if(!strcasecmp(pl, "C"))
+ p = prot_clear;
+
+ if(!strcasecmp(pl, "S"))
+ p = prot_safe;
+
+ if(!strcasecmp(pl, "E"))
+ p = prot_confidential;
+
+ if(!strcasecmp(pl, "P"))
+ p = prot_private;
+
+ if(p == -1){
+ reply(504, "Unrecognized protection level.");
+ return;
+ }
+
+ if(auth_ok()){
+ if(ct->prot(p)){
+ reply(536, "%s does not support %s protection.",
+ ct->name, protection_names[p]);
+ }else{
+ data_protection = p;
+ reply(200, "Data protection is %s.",
+ protection_names[data_protection]);
+ }
+ }else{
+ reply(503, "Incomplete security data exchange.");
+ }
+}
+
+void ccc(void)
+{
+ if(auth_ok()){
+ if(!ct->ccc())
+ prot_level = prot_clear;
+ }else
+ reply(503, "Incomplete security data exchange.");
+}
+
+void mic(char *msg)
+{
+ if(auth_ok()){
+ if(!ct->mic(msg))
+ prot_level = prot_safe;
+ }else
+ reply(503, "Incomplete security data exchange.");
+}
+
+void conf(char *msg)
+{
+ if(auth_ok()){
+ if(!ct->conf(msg))
+ prot_level = prot_confidential;
+ }else
+ reply(503, "Incomplete security data exchange.");
+}
+
+void enc(char *msg)
+{
+ if(auth_ok()){
+ if(!ct->enc(msg))
+ prot_level = prot_private;
+ }else
+ reply(503, "Incomplete security data exchange.");
+}
+
+int auth_read(int fd, void *data, int length)
+{
+ if(auth_ok() && data_protection)
+ return ct->read(fd, data, length);
+ else
+ return read(fd, data, length);
+}
+
+int auth_write(int fd, void *data, int length)
+{
+ if(auth_ok() && data_protection)
+ return ct->write(fd, data, length);
+ else
+ return write(fd, data, length);
+}
+
+void auth_vprintf(const char *fmt, va_list ap)
+{
+ if(auth_ok() && prot_level){
+ ct->vprintf(fmt, ap);
+ }else
+ vprintf(fmt, ap);
+}
+
+void auth_printf(const char *fmt, ...)
+{
+ va_list ap;
+ va_start(ap, fmt);
+ auth_vprintf(fmt, ap);
+ va_end(ap);
+}
diff --git a/crypto/kerberosIV/appl/ftp/ftpd/auth.h b/crypto/kerberosIV/appl/ftp/ftpd/auth.h
new file mode 100644
index 0000000..17d9a13
--- /dev/null
+++ b/crypto/kerberosIV/appl/ftp/ftpd/auth.h
@@ -0,0 +1,109 @@
+/*
+ * Copyright (c) 1995, 1996, 1997 Kungliga Tekniska Högskolan
+ * (Royal Institute of Technology, Stockholm, Sweden).
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the Kungliga Tekniska
+ * Högskolan and its contributors.
+ *
+ * 4. Neither the name of the Institute nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/* $Id: auth.h,v 1.9 1997/05/11 11:04:28 assar Exp $ */
+
+#ifndef __AUTH_H__
+#define __AUTH_H__
+
+#include <stdarg.h>
+
+struct at {
+ char *name;
+ int (*auth)(char*);
+ int (*adat)(char*);
+ int (*pbsz)(int);
+ int (*prot)(int);
+ int (*ccc)(void);
+ int (*mic)(char*);
+ int (*conf)(char*);
+ int (*enc)(char*);
+ int (*read)(int, void*, int);
+ int (*write)(int, void*, int);
+ int (*userok)(char*);
+ int (*vprintf)(const char*, va_list);
+};
+
+extern struct at *ct;
+
+enum protection_levels {
+ prot_clear, prot_safe, prot_confidential, prot_private
+};
+
+extern char *protection_names[];
+
+extern char *ftp_command;
+extern int prot_level;
+
+void delete_ftp_command(void);
+
+extern int data_protection;
+extern int buffer_size;
+extern unsigned char *data_buffer;
+extern int auth_complete;
+
+void auth_init(void);
+
+int auth_ok(void);
+
+void auth(char*);
+void adat(char*);
+void pbsz(int);
+void prot(char*);
+void ccc(void);
+void mic(char*);
+void conf(char*);
+void enc(char*);
+
+int auth_read(int, void*, int);
+int auth_write(int, void*, int);
+
+void auth_vprintf(const char *fmt, va_list ap)
+#ifdef __GNUC__
+__attribute__ ((format (printf, 1, 0)))
+#endif
+;
+void auth_printf(const char *fmt, ...)
+#ifdef __GNUC__
+__attribute__ ((format (printf, 1, 2)))
+#endif
+;
+
+void new_ftp_command(char *command);
+
+#endif /* __AUTH_H__ */
diff --git a/crypto/kerberosIV/appl/ftp/ftpd/extern.h b/crypto/kerberosIV/appl/ftp/ftpd/extern.h
new file mode 100644
index 0000000..f9b800f
--- /dev/null
+++ b/crypto/kerberosIV/appl/ftp/ftpd/extern.h
@@ -0,0 +1,141 @@
+/*-
+ * Copyright (c) 1992, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * @(#)extern.h 8.2 (Berkeley) 4/4/94
+ */
+
+#ifndef _EXTERN_H_
+#define _EXTERN_H_
+
+#ifdef HAVE_NETINET_IN_H
+#include <netinet/in.h>
+#endif
+#ifdef HAVE_NETDB_H
+#include <netdb.h>
+#endif
+
+#include <stdio.h>
+#include <stdarg.h>
+#include <setjmp.h>
+#ifdef HAVE_PWD_H
+#include <pwd.h>
+#endif
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+
+void abor(void);
+void blkfree(char **);
+char **copyblk(char **);
+void cwd(char *);
+void do_delete(char *);
+void dologout(int);
+void fatal(char *);
+int filename_check(char *);
+int ftpd_pclose(FILE *);
+FILE *ftpd_popen(char *, char *, int, int);
+char *getline(char *, int);
+void logwtmp(char *, char *, char *);
+void lreply(int, const char *, ...)
+#ifdef __GNUC__
+__attribute__ ((format (printf, 2, 3)))
+#endif
+;
+void makedir(char *);
+void nack(char *);
+void nreply(const char *, ...)
+#ifdef __GNUC__
+__attribute__ ((format (printf, 1, 2)))
+#endif
+;
+void pass(char *);
+void passive(void);
+void perror_reply(int, char *);
+void pwd(void);
+void removedir(char *);
+void renamecmd(char *, char *);
+char *renamefrom(char *);
+void reply(int, const char *, ...)
+#ifdef __GNUC__
+__attribute__ ((format (printf, 2, 3)))
+#endif
+;
+void retrieve(char *, char *);
+void send_file_list(char *);
+void setproctitle(const char *, ...)
+#ifdef __GNUC__
+__attribute__ ((format (printf, 1, 2)))
+#endif
+;
+void statcmd(void);
+void statfilecmd(char *);
+void do_store(char *, char *, int);
+void upper(char *);
+void user(char *);
+void yyerror(char *);
+
+void kauth(char *, char*);
+void klist(void);
+
+int find(char *);
+
+int do_login(int code, char *passwd);
+int klogin(char *name, char *password);
+
+const char *ftp_rooted(const char *path);
+
+extern struct sockaddr_in ctrl_addr, his_addr;
+extern char hostname[];
+
+extern struct sockaddr_in data_dest;
+extern int logged_in;
+extern struct passwd *pw;
+extern int guest;
+extern int logging;
+extern int type;
+extern int oobflag;
+extern off_t file_size;
+extern off_t byte_count;
+extern jmp_buf urgcatch;
+
+extern int form;
+extern int debug;
+extern int ftpd_timeout;
+extern int maxtimeout;
+extern int pdata;
+extern char hostname[], remotehost[];
+extern char proctitle[];
+extern int usedefault;
+extern int transflag;
+extern char tmpline[];
+
+#endif /* _EXTERN_H_ */
diff --git a/crypto/kerberosIV/appl/ftp/ftpd/ftpcmd.y b/crypto/kerberosIV/appl/ftp/ftpd/ftpcmd.y
new file mode 100644
index 0000000..9368cdb
--- /dev/null
+++ b/crypto/kerberosIV/appl/ftp/ftpd/ftpcmd.y
@@ -0,0 +1,1408 @@
+/* $NetBSD: ftpcmd.y,v 1.6 1995/06/03 22:46:45 mycroft Exp $ */
+
+/*
+ * Copyright (c) 1985, 1988, 1993, 1994
+ * The Regents of the University of California. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * @(#)ftpcmd.y 8.3 (Berkeley) 4/6/94
+ */
+
+/*
+ * Grammar for FTP commands.
+ * See RFC 959.
+ */
+
+%{
+
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+RCSID("$Id: ftpcmd.y,v 1.35 1997/05/25 14:38:49 assar Exp $");
+
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+
+#ifdef HAVE_SYS_PARAM_H
+#include <sys/param.h>
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include <sys/socket.h>
+#endif
+#ifdef HAVE_SYS_STAT_H
+#include <sys/stat.h>
+#endif
+
+#ifdef HAVE_NETINET_IN_H
+#include <netinet/in.h>
+#endif
+#ifdef HAVE_ARPA_FTP_H
+#include <arpa/ftp.h>
+#endif
+
+#include <ctype.h>
+#include <errno.h>
+#include <glob.h>
+#ifdef HAVE_PWD_H
+#include <pwd.h>
+#endif
+#include <setjmp.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#ifdef HAVE_SYSLOG_H
+#include <syslog.h>
+#endif
+#include <time.h>
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+
+#ifdef HAVE_BSD_BSD_H
+#include <bsd/bsd.h>
+#endif
+
+#include <roken.h>
+
+#ifdef SOCKS
+#include <socks.h>
+extern int LIBPREFIX(fclose) __P((FILE *));
+#endif
+
+#include "extern.h"
+#include "auth.h"
+
+off_t restart_point;
+
+static int cmd_type;
+static int cmd_form;
+static int cmd_bytesz;
+char cbuf[512];
+char *fromname;
+
+struct tab {
+ char *name;
+ short token;
+ short state;
+ short implemented; /* 1 if command is implemented */
+ char *help;
+};
+
+extern struct tab cmdtab[];
+extern struct tab sitetab[];
+
+static char *copy (char *);
+static void help (struct tab *, char *);
+static struct tab *
+ lookup (struct tab *, char *);
+static void sizecmd (char *);
+static void toolong (int);
+static int yylex (void);
+
+/* This is for bison */
+
+#if !defined(alloca) && !defined(HAVE_ALLOCA)
+#define alloca(x) malloc(x)
+#endif
+
+%}
+
+%union {
+ int i;
+ char *s;
+}
+
+%token
+ A B C E F I
+ L N P R S T
+
+ SP CRLF COMMA
+
+ USER PASS ACCT REIN QUIT PORT
+ PASV TYPE STRU MODE RETR STOR
+ APPE MLFL MAIL MSND MSOM MSAM
+ MRSQ MRCP ALLO REST RNFR RNTO
+ ABOR DELE CWD LIST NLST SITE
+ STAT HELP NOOP MKD RMD PWD
+ CDUP STOU SMNT SYST SIZE MDTM
+
+ UMASK IDLE CHMOD
+
+ AUTH ADAT PROT PBSZ CCC MIC
+ CONF ENC
+
+ KAUTH KLIST FIND URL
+
+ LEXERR
+
+%token <s> STRING
+%token <i> NUMBER
+
+%type <i> check_login check_login_no_guest octal_number byte_size
+%type <i> struct_code mode_code type_code form_code
+%type <s> pathstring pathname password username
+
+%start cmd_list
+
+%%
+
+cmd_list
+ : /* empty */
+ | cmd_list cmd
+ {
+ fromname = (char *) 0;
+ restart_point = (off_t) 0;
+ }
+ | cmd_list rcmd
+ ;
+
+cmd
+ : USER SP username CRLF
+ {
+ user($3);
+ free($3);
+ }
+ | AUTH SP STRING CRLF
+ {
+ auth($3);
+ free($3);
+ }
+ | ADAT SP STRING CRLF
+ {
+ adat($3);
+ free($3);
+ }
+ | PBSZ SP NUMBER CRLF
+ {
+ pbsz($3);
+ }
+ | PROT SP STRING CRLF
+ {
+ prot($3);
+ }
+ | CCC CRLF
+ {
+ ccc();
+ }
+ | MIC SP STRING CRLF
+ {
+ mic($3);
+ free($3);
+ }
+ | CONF SP STRING CRLF
+ {
+ conf($3);
+ free($3);
+ }
+ | PASS SP password CRLF
+ {
+ pass($3);
+ memset ($3, 0, strlen($3));
+ free($3);
+ }
+ | PORT SP host_port CRLF
+ {
+ usedefault = 0;
+ if (pdata >= 0) {
+ close(pdata);
+ pdata = -1;
+ }
+ reply(200, "PORT command successful.");
+ }
+ | PASV CRLF
+ {
+ passive();
+ }
+ | TYPE SP type_code CRLF
+ {
+ switch (cmd_type) {
+
+ case TYPE_A:
+ if (cmd_form == FORM_N) {
+ reply(200, "Type set to A.");
+ type = cmd_type;
+ form = cmd_form;
+ } else
+ reply(504, "Form must be N.");
+ break;
+
+ case TYPE_E:
+ reply(504, "Type E not implemented.");
+ break;
+
+ case TYPE_I:
+ reply(200, "Type set to I.");
+ type = cmd_type;
+ break;
+
+ case TYPE_L:
+#if NBBY == 8
+ if (cmd_bytesz == 8) {
+ reply(200,
+ "Type set to L (byte size 8).");
+ type = cmd_type;
+ } else
+ reply(504, "Byte size must be 8.");
+#else /* NBBY == 8 */
+ UNIMPLEMENTED for NBBY != 8
+#endif /* NBBY == 8 */
+ }
+ }
+ | STRU SP struct_code CRLF
+ {
+ switch ($3) {
+
+ case STRU_F:
+ reply(200, "STRU F ok.");
+ break;
+
+ default:
+ reply(504, "Unimplemented STRU type.");
+ }
+ }
+ | MODE SP mode_code CRLF
+ {
+ switch ($3) {
+
+ case MODE_S:
+ reply(200, "MODE S ok.");
+ break;
+
+ default:
+ reply(502, "Unimplemented MODE type.");
+ }
+ }
+ | ALLO SP NUMBER CRLF
+ {
+ reply(202, "ALLO command ignored.");
+ }
+ | ALLO SP NUMBER SP R SP NUMBER CRLF
+ {
+ reply(202, "ALLO command ignored.");
+ }
+ | RETR check_login SP pathname CRLF
+ {
+ if ($2 && $4 != NULL)
+ retrieve((char *) 0, $4);
+ if ($4 != NULL)
+ free($4);
+ }
+ | STOR check_login SP pathname CRLF
+ {
+ if ($2 && $4 != NULL)
+ do_store($4, "w", 0);
+ if ($4 != NULL)
+ free($4);
+ }
+ | APPE check_login SP pathname CRLF
+ {
+ if ($2 && $4 != NULL)
+ do_store($4, "a", 0);
+ if ($4 != NULL)
+ free($4);
+ }
+ | NLST check_login CRLF
+ {
+ if ($2)
+ send_file_list(".");
+ }
+ | NLST check_login SP STRING CRLF
+ {
+ if ($2 && $4 != NULL)
+ send_file_list($4);
+ if ($4 != NULL)
+ free($4);
+ }
+ | LIST check_login CRLF
+ {
+#ifdef HAVE_LS_A
+ char *cmd = "/bin/ls -lA";
+#else
+ char *cmd = "/bin/ls -la";
+#endif
+ if ($2)
+ retrieve(cmd, "");
+
+ }
+ | LIST check_login SP pathname CRLF
+ {
+#ifdef HAVE_LS_A
+ char *cmd = "/bin/ls -lA %s";
+#else
+ char *cmd = "/bin/ls -la %s";
+#endif
+ if ($2 && $4 != NULL)
+ retrieve(cmd, $4);
+ if ($4 != NULL)
+ free($4);
+ }
+ | STAT check_login SP pathname CRLF
+ {
+ if ($2 && $4 != NULL)
+ statfilecmd($4);
+ if ($4 != NULL)
+ free($4);
+ }
+ | STAT CRLF
+ {
+ if(oobflag){
+ if (file_size != (off_t) -1)
+ reply(213, "Status: %ld of %ld bytes transferred",
+ byte_count, file_size);
+ else
+ reply(213, "Status: %ld bytes transferred", byte_count);
+ }else
+ statcmd();
+ }
+ | DELE check_login_no_guest SP pathname CRLF
+ {
+ if ($2 && $4 != NULL)
+ do_delete($4);
+ if ($4 != NULL)
+ free($4);
+ }
+ | RNTO check_login_no_guest SP pathname CRLF
+ {
+ if($2){
+ if (fromname) {
+ renamecmd(fromname, $4);
+ free(fromname);
+ fromname = (char *) 0;
+ } else {
+ reply(503, "Bad sequence of commands.");
+ }
+ }
+ if ($4 != NULL)
+ free($4);
+ }
+ | ABOR CRLF
+ {
+ if(oobflag){
+ reply(426, "Transfer aborted. Data connection closed.");
+ reply(226, "Abort successful");
+ oobflag = 0;
+ longjmp(urgcatch, 1);
+ }else
+ reply(225, "ABOR command successful.");
+ }
+ | CWD check_login CRLF
+ {
+ if ($2)
+ cwd(pw->pw_dir);
+ }
+ | CWD check_login SP pathname CRLF
+ {
+ if ($2 && $4 != NULL)
+ cwd($4);
+ if ($4 != NULL)
+ free($4);
+ }
+ | HELP CRLF
+ {
+ help(cmdtab, (char *) 0);
+ }
+ | HELP SP STRING CRLF
+ {
+ char *cp = $3;
+
+ if (strncasecmp(cp, "SITE", 4) == 0) {
+ cp = $3 + 4;
+ if (*cp == ' ')
+ cp++;
+ if (*cp)
+ help(sitetab, cp);
+ else
+ help(sitetab, (char *) 0);
+ } else
+ help(cmdtab, $3);
+ }
+ | NOOP CRLF
+ {
+ reply(200, "NOOP command successful.");
+ }
+ | MKD check_login SP pathname CRLF
+ {
+ if ($2 && $4 != NULL)
+ makedir($4);
+ if ($4 != NULL)
+ free($4);
+ }
+ | RMD check_login_no_guest SP pathname CRLF
+ {
+ if ($2 && $4 != NULL)
+ removedir($4);
+ if ($4 != NULL)
+ free($4);
+ }
+ | PWD check_login CRLF
+ {
+ if ($2)
+ pwd();
+ }
+ | CDUP check_login CRLF
+ {
+ if ($2)
+ cwd("..");
+ }
+ | SITE SP HELP CRLF
+ {
+ help(sitetab, (char *) 0);
+ }
+ | SITE SP HELP SP STRING CRLF
+ {
+ help(sitetab, $5);
+ }
+ | SITE SP UMASK check_login CRLF
+ {
+ int oldmask;
+
+ if ($4) {
+ oldmask = umask(0);
+ umask(oldmask);
+ reply(200, "Current UMASK is %03o", oldmask);
+ }
+ }
+ | SITE SP UMASK check_login_no_guest SP octal_number CRLF
+ {
+ int oldmask;
+
+ if ($4) {
+ if (($6 == -1) || ($6 > 0777)) {
+ reply(501, "Bad UMASK value");
+ } else {
+ oldmask = umask($6);
+ reply(200,
+ "UMASK set to %03o (was %03o)",
+ $6, oldmask);
+ }
+ }
+ }
+ | SITE SP CHMOD check_login_no_guest SP octal_number SP pathname CRLF
+ {
+ if ($4 && $8 != NULL) {
+ if ($6 > 0777)
+ reply(501,
+ "CHMOD: Mode value must be between 0 and 0777");
+ else if (chmod($8, $6) < 0)
+ perror_reply(550, $8);
+ else
+ reply(200, "CHMOD command successful.");
+ }
+ if ($8 != NULL)
+ free($8);
+ }
+ | SITE SP IDLE CRLF
+ {
+ reply(200,
+ "Current IDLE time limit is %d seconds; max %d",
+ ftpd_timeout, maxtimeout);
+ }
+ | SITE SP IDLE SP NUMBER CRLF
+ {
+ if ($5 < 30 || $5 > maxtimeout) {
+ reply(501,
+ "Maximum IDLE time must be between 30 and %d seconds",
+ maxtimeout);
+ } else {
+ ftpd_timeout = $5;
+ alarm((unsigned) ftpd_timeout);
+ reply(200,
+ "Maximum IDLE time set to %d seconds",
+ ftpd_timeout);
+ }
+ }
+
+ | SITE SP KAUTH check_login SP STRING CRLF
+ {
+ char *p;
+
+ if(guest)
+ reply(500, "Can't be done as guest.");
+ else{
+ if($4 && $6 != NULL){
+ p = strpbrk($6, " \t");
+ if(p){
+ *p++ = 0;
+ kauth($6, p + strspn(p, " \t"));
+ }else
+ kauth($6, NULL);
+ }
+ }
+ if($6 != NULL)
+ free($6);
+ }
+ | SITE SP KLIST check_login CRLF
+ {
+ if($4)
+ klist();
+ }
+ | SITE SP FIND check_login SP STRING CRLF
+ {
+ if($4 && $6 != NULL)
+ find($6);
+ if($6 != NULL)
+ free($6);
+ }
+ | SITE SP URL CRLF
+ {
+ reply(200, "http://www.pdc.kth.se/kth-krb/");
+ }
+ | STOU check_login SP pathname CRLF
+ {
+ if ($2 && $4 != NULL)
+ do_store($4, "w", 1);
+ if ($4 != NULL)
+ free($4);
+ }
+ | SYST CRLF
+ {
+#if defined(unix) || defined(__unix__) || defined(__unix) || defined(_AIX) || defined(_CRAY)
+ reply(215, "UNIX Type: L%d", NBBY);
+#else
+ reply(215, "UNKNOWN Type: L%d", NBBY);
+#endif
+ }
+
+ /*
+ * SIZE is not in RFC959, but Postel has blessed it and
+ * it will be in the updated RFC.
+ *
+ * Return size of file in a format suitable for
+ * using with RESTART (we just count bytes).
+ */
+ | SIZE check_login SP pathname CRLF
+ {
+ if ($2 && $4 != NULL)
+ sizecmd($4);
+ if ($4 != NULL)
+ free($4);
+ }
+
+ /*
+ * MDTM is not in RFC959, but Postel has blessed it and
+ * it will be in the updated RFC.
+ *
+ * Return modification time of file as an ISO 3307
+ * style time. E.g. YYYYMMDDHHMMSS or YYYYMMDDHHMMSS.xxx
+ * where xxx is the fractional second (of any precision,
+ * not necessarily 3 digits)
+ */
+ | MDTM check_login SP pathname CRLF
+ {
+ if ($2 && $4 != NULL) {
+ struct stat stbuf;
+ if (stat($4, &stbuf) < 0)
+ reply(550, "%s: %s",
+ $4, strerror(errno));
+ else if (!S_ISREG(stbuf.st_mode)) {
+ reply(550, "%s: not a plain file.", $4);
+ } else {
+ struct tm *t;
+ t = gmtime(&stbuf.st_mtime);
+ reply(213,
+ "%04d%02d%02d%02d%02d%02d",
+ t->tm_year + 1900,
+ t->tm_mon + 1,
+ t->tm_mday,
+ t->tm_hour,
+ t->tm_min,
+ t->tm_sec);
+ }
+ }
+ if ($4 != NULL)
+ free($4);
+ }
+ | QUIT CRLF
+ {
+ reply(221, "Goodbye.");
+ dologout(0);
+ }
+ | error CRLF
+ {
+ yyerrok;
+ }
+ ;
+rcmd
+ : RNFR check_login_no_guest SP pathname CRLF
+ {
+ restart_point = (off_t) 0;
+ if ($2 && $4) {
+ fromname = renamefrom($4);
+ if (fromname == (char *) 0 && $4) {
+ free($4);
+ }
+ }
+ }
+ | REST SP byte_size CRLF
+ {
+ fromname = (char *) 0;
+ restart_point = $3; /* XXX $3 is only "int" */
+ reply(350, "Restarting at %ld. %s",
+ (long)restart_point,
+ "Send STORE or RETRIEVE to initiate transfer.");
+ }
+ | ENC SP STRING CRLF
+ {
+ enc($3);
+ free($3);
+ }
+ ;
+
+username
+ : STRING
+ ;
+
+password
+ : /* empty */
+ {
+ $$ = (char *)calloc(1, sizeof(char));
+ }
+ | STRING
+ ;
+
+byte_size
+ : NUMBER
+ ;
+
+host_port
+ : NUMBER COMMA NUMBER COMMA NUMBER COMMA NUMBER COMMA
+ NUMBER COMMA NUMBER
+ {
+ data_dest.sin_family = AF_INET;
+ data_dest.sin_port = htons($9 * 256 + $11);
+ data_dest.sin_addr.s_addr =
+ htonl(($1 << 24) | ($3 << 16) | ($5 << 8) | $7);
+ }
+ ;
+
+form_code
+ : N
+ {
+ $$ = FORM_N;
+ }
+ | T
+ {
+ $$ = FORM_T;
+ }
+ | C
+ {
+ $$ = FORM_C;
+ }
+ ;
+
+type_code
+ : A
+ {
+ cmd_type = TYPE_A;
+ cmd_form = FORM_N;
+ }
+ | A SP form_code
+ {
+ cmd_type = TYPE_A;
+ cmd_form = $3;
+ }
+ | E
+ {
+ cmd_type = TYPE_E;
+ cmd_form = FORM_N;
+ }
+ | E SP form_code
+ {
+ cmd_type = TYPE_E;
+ cmd_form = $3;
+ }
+ | I
+ {
+ cmd_type = TYPE_I;
+ }
+ | L
+ {
+ cmd_type = TYPE_L;
+ cmd_bytesz = NBBY;
+ }
+ | L SP byte_size
+ {
+ cmd_type = TYPE_L;
+ cmd_bytesz = $3;
+ }
+ /* this is for a bug in the BBN ftp */
+ | L byte_size
+ {
+ cmd_type = TYPE_L;
+ cmd_bytesz = $2;
+ }
+ ;
+
+struct_code
+ : F
+ {
+ $$ = STRU_F;
+ }
+ | R
+ {
+ $$ = STRU_R;
+ }
+ | P
+ {
+ $$ = STRU_P;
+ }
+ ;
+
+mode_code
+ : S
+ {
+ $$ = MODE_S;
+ }
+ | B
+ {
+ $$ = MODE_B;
+ }
+ | C
+ {
+ $$ = MODE_C;
+ }
+ ;
+
+pathname
+ : pathstring
+ {
+ /*
+ * Problem: this production is used for all pathname
+ * processing, but only gives a 550 error reply.
+ * This is a valid reply in some cases but not in others.
+ */
+ if (logged_in && $1 && *$1 == '~') {
+ glob_t gl;
+ int flags =
+ GLOB_BRACE|GLOB_NOCHECK|GLOB_QUOTE|GLOB_TILDE;
+
+ memset(&gl, 0, sizeof(gl));
+ if (glob($1, flags, NULL, &gl) ||
+ gl.gl_pathc == 0) {
+ reply(550, "not found");
+ $$ = NULL;
+ } else {
+ $$ = strdup(gl.gl_pathv[0]);
+ }
+ globfree(&gl);
+ free($1);
+ } else
+ $$ = $1;
+ }
+ ;
+
+pathstring
+ : STRING
+ ;
+
+octal_number
+ : NUMBER
+ {
+ int ret, dec, multby, digit;
+
+ /*
+ * Convert a number that was read as decimal number
+ * to what it would be if it had been read as octal.
+ */
+ dec = $1;
+ multby = 1;
+ ret = 0;
+ while (dec) {
+ digit = dec%10;
+ if (digit > 7) {
+ ret = -1;
+ break;
+ }
+ ret += digit * multby;
+ multby *= 8;
+ dec /= 10;
+ }
+ $$ = ret;
+ }
+ ;
+
+
+check_login_no_guest : check_login
+ {
+ $$ = $1 && !guest;
+ if($1 && !$$)
+ reply(550, "Permission denied");
+ }
+ ;
+
+check_login
+ : /* empty */
+ {
+ if(auth_complete && prot_level == prot_clear){
+ reply(533, "Command protection level denied for paranoid reasons.");
+ $$ = 0;
+ }else
+ if (logged_in)
+ $$ = 1;
+ else {
+ reply(530, "Please login with USER and PASS.");
+ $$ = 0;
+ }
+ }
+ ;
+
+%%
+
+extern jmp_buf errcatch;
+
+#define CMD 0 /* beginning of command */
+#define ARGS 1 /* expect miscellaneous arguments */
+#define STR1 2 /* expect SP followed by STRING */
+#define STR2 3 /* expect STRING */
+#define OSTR 4 /* optional SP then STRING */
+#define ZSTR1 5 /* SP then optional STRING */
+#define ZSTR2 6 /* optional STRING after SP */
+#define SITECMD 7 /* SITE command */
+#define NSTR 8 /* Number followed by a string */
+
+struct tab cmdtab[] = { /* In order defined in RFC 765 */
+ { "USER", USER, STR1, 1, "<sp> username" },
+ { "PASS", PASS, ZSTR1, 1, "<sp> password" },
+ { "ACCT", ACCT, STR1, 0, "(specify account)" },
+ { "SMNT", SMNT, ARGS, 0, "(structure mount)" },
+ { "REIN", REIN, ARGS, 0, "(reinitialize server state)" },
+ { "QUIT", QUIT, ARGS, 1, "(terminate service)", },
+ { "PORT", PORT, ARGS, 1, "<sp> b0, b1, b2, b3, b4" },
+ { "PASV", PASV, ARGS, 1, "(set server in passive mode)" },
+ { "TYPE", TYPE, ARGS, 1, "<sp> [ A | E | I | L ]" },
+ { "STRU", STRU, ARGS, 1, "(specify file structure)" },
+ { "MODE", MODE, ARGS, 1, "(specify transfer mode)" },
+ { "RETR", RETR, STR1, 1, "<sp> file-name" },
+ { "STOR", STOR, STR1, 1, "<sp> file-name" },
+ { "APPE", APPE, STR1, 1, "<sp> file-name" },
+ { "MLFL", MLFL, OSTR, 0, "(mail file)" },
+ { "MAIL", MAIL, OSTR, 0, "(mail to user)" },
+ { "MSND", MSND, OSTR, 0, "(mail send to terminal)" },
+ { "MSOM", MSOM, OSTR, 0, "(mail send to terminal or mailbox)" },
+ { "MSAM", MSAM, OSTR, 0, "(mail send to terminal and mailbox)" },
+ { "MRSQ", MRSQ, OSTR, 0, "(mail recipient scheme question)" },
+ { "MRCP", MRCP, STR1, 0, "(mail recipient)" },
+ { "ALLO", ALLO, ARGS, 1, "allocate storage (vacuously)" },
+ { "REST", REST, ARGS, 1, "<sp> offset (restart command)" },
+ { "RNFR", RNFR, STR1, 1, "<sp> file-name" },
+ { "RNTO", RNTO, STR1, 1, "<sp> file-name" },
+ { "ABOR", ABOR, ARGS, 1, "(abort operation)" },
+ { "DELE", DELE, STR1, 1, "<sp> file-name" },
+ { "CWD", CWD, OSTR, 1, "[ <sp> directory-name ]" },
+ { "XCWD", CWD, OSTR, 1, "[ <sp> directory-name ]" },
+ { "LIST", LIST, OSTR, 1, "[ <sp> path-name ]" },
+ { "NLST", NLST, OSTR, 1, "[ <sp> path-name ]" },
+ { "SITE", SITE, SITECMD, 1, "site-cmd [ <sp> arguments ]" },
+ { "SYST", SYST, ARGS, 1, "(get type of operating system)" },
+ { "STAT", STAT, OSTR, 1, "[ <sp> path-name ]" },
+ { "HELP", HELP, OSTR, 1, "[ <sp> <string> ]" },
+ { "NOOP", NOOP, ARGS, 1, "" },
+ { "MKD", MKD, STR1, 1, "<sp> path-name" },
+ { "XMKD", MKD, STR1, 1, "<sp> path-name" },
+ { "RMD", RMD, STR1, 1, "<sp> path-name" },
+ { "XRMD", RMD, STR1, 1, "<sp> path-name" },
+ { "PWD", PWD, ARGS, 1, "(return current directory)" },
+ { "XPWD", PWD, ARGS, 1, "(return current directory)" },
+ { "CDUP", CDUP, ARGS, 1, "(change to parent directory)" },
+ { "XCUP", CDUP, ARGS, 1, "(change to parent directory)" },
+ { "STOU", STOU, STR1, 1, "<sp> file-name" },
+ { "SIZE", SIZE, OSTR, 1, "<sp> path-name" },
+ { "MDTM", MDTM, OSTR, 1, "<sp> path-name" },
+
+ /* extensions from draft-ietf-cat-ftpsec-08 */
+ { "AUTH", AUTH, STR1, 1, "<sp> auth-type" },
+ { "ADAT", ADAT, STR1, 1, "<sp> auth-data" },
+ { "PBSZ", PBSZ, ARGS, 1, "<sp> buffer-size" },
+ { "PROT", PROT, STR1, 1, "<sp> prot-level" },
+ { "CCC", CCC, ARGS, 1, "" },
+ { "MIC", MIC, STR1, 1, "<sp> integrity command" },
+ { "CONF", CONF, STR1, 1, "<sp> confidentiality command" },
+ { "ENC", ENC, STR1, 1, "<sp> privacy command" },
+
+ { NULL, 0, 0, 0, 0 }
+};
+
+struct tab sitetab[] = {
+ { "UMASK", UMASK, ARGS, 1, "[ <sp> umask ]" },
+ { "IDLE", IDLE, ARGS, 1, "[ <sp> maximum-idle-time ]" },
+ { "CHMOD", CHMOD, NSTR, 1, "<sp> mode <sp> file-name" },
+ { "HELP", HELP, OSTR, 1, "[ <sp> <string> ]" },
+
+ { "KAUTH", KAUTH, STR1, 1, "<sp> principal [ <sp> ticket ]" },
+ { "KLIST", KLIST, ARGS, 1, "(show ticket file)" },
+
+ { "FIND", FIND, STR1, 1, "<sp> globexpr" },
+
+ { "URL", URL, ARGS, 1, "?" },
+
+ { NULL, 0, 0, 0, 0 }
+};
+
+static struct tab *
+lookup(struct tab *p, char *cmd)
+{
+
+ for (; p->name != NULL; p++)
+ if (strcmp(cmd, p->name) == 0)
+ return (p);
+ return (0);
+}
+
+#include <arpa/telnet.h>
+
+/*
+ * getline - a hacked up version of fgets to ignore TELNET escape codes.
+ */
+char *
+getline(char *s, int n)
+{
+ int c;
+ char *cs;
+
+ cs = s;
+/* tmpline may contain saved command from urgent mode interruption */
+ if(ftp_command){
+ strncpy(s, ftp_command, n);
+ if (debug)
+ syslog(LOG_DEBUG, "command: %s", s);
+#ifdef XXX
+ fprintf(stderr, "%s\n", s);
+#endif
+ return s;
+ }
+ prot_level = prot_clear;
+ while ((c = getc(stdin)) != EOF) {
+ c &= 0377;
+ if (c == IAC) {
+ if ((c = getc(stdin)) != EOF) {
+ c &= 0377;
+ switch (c) {
+ case WILL:
+ case WONT:
+ c = getc(stdin);
+ printf("%c%c%c", IAC, DONT, 0377&c);
+ fflush(stdout);
+ continue;
+ case DO:
+ case DONT:
+ c = getc(stdin);
+ printf("%c%c%c", IAC, WONT, 0377&c);
+ fflush(stdout);
+ continue;
+ case IAC:
+ break;
+ default:
+ continue; /* ignore command */
+ }
+ }
+ }
+ *cs++ = c;
+ if (--n <= 0 || c == '\n')
+ break;
+ }
+ if (c == EOF && cs == s)
+ return (NULL);
+ *cs++ = '\0';
+ if (debug) {
+ if (!guest && strncasecmp("pass ", s, 5) == 0) {
+ /* Don't syslog passwords */
+ syslog(LOG_DEBUG, "command: %.5s ???", s);
+ } else {
+ char *cp;
+ int len;
+
+ /* Don't syslog trailing CR-LF */
+ len = strlen(s);
+ cp = s + len - 1;
+ while (cp >= s && (*cp == '\n' || *cp == '\r')) {
+ --cp;
+ --len;
+ }
+ syslog(LOG_DEBUG, "command: %.*s", len, s);
+ }
+ }
+#ifdef XXX
+ fprintf(stderr, "%s\n", s);
+#endif
+ return (s);
+}
+
+static RETSIGTYPE
+toolong(int signo)
+{
+
+ reply(421,
+ "Timeout (%d seconds): closing control connection.",
+ ftpd_timeout);
+ if (logging)
+ syslog(LOG_INFO, "User %s timed out after %d seconds",
+ (pw ? pw -> pw_name : "unknown"), ftpd_timeout);
+ dologout(1);
+ SIGRETURN(0);
+}
+
+static int
+yylex(void)
+{
+ static int cpos, state;
+ char *cp, *cp2;
+ struct tab *p;
+ int n;
+ char c;
+
+ for (;;) {
+ switch (state) {
+
+ case CMD:
+ signal(SIGALRM, toolong);
+ alarm((unsigned) ftpd_timeout);
+ if (getline(cbuf, sizeof(cbuf)-1) == NULL) {
+ reply(221, "You could at least say goodbye.");
+ dologout(0);
+ }
+ alarm(0);
+#ifdef HASSETPROCTITLE
+ if (strncasecmp(cbuf, "PASS", 4) != NULL)
+ setproctitle("%s: %s", proctitle, cbuf);
+#endif /* HASSETPROCTITLE */
+ if ((cp = strchr(cbuf, '\r'))) {
+ *cp++ = '\n';
+ *cp = '\0';
+ }
+ if ((cp = strpbrk(cbuf, " \n")))
+ cpos = cp - cbuf;
+ if (cpos == 0)
+ cpos = 4;
+ c = cbuf[cpos];
+ cbuf[cpos] = '\0';
+ strupr(cbuf);
+ p = lookup(cmdtab, cbuf);
+ cbuf[cpos] = c;
+ if (p != 0) {
+ if (p->implemented == 0) {
+ nack(p->name);
+ longjmp(errcatch,0);
+ /* NOTREACHED */
+ }
+ state = p->state;
+ yylval.s = p->name;
+ return (p->token);
+ }
+ break;
+
+ case SITECMD:
+ if (cbuf[cpos] == ' ') {
+ cpos++;
+ return (SP);
+ }
+ cp = &cbuf[cpos];
+ if ((cp2 = strpbrk(cp, " \n")))
+ cpos = cp2 - cbuf;
+ c = cbuf[cpos];
+ cbuf[cpos] = '\0';
+ strupr(cp);
+ p = lookup(sitetab, cp);
+ cbuf[cpos] = c;
+ if (p != 0) {
+ if (p->implemented == 0) {
+ state = CMD;
+ nack(p->name);
+ longjmp(errcatch,0);
+ /* NOTREACHED */
+ }
+ state = p->state;
+ yylval.s = p->name;
+ return (p->token);
+ }
+ state = CMD;
+ break;
+
+ case OSTR:
+ if (cbuf[cpos] == '\n') {
+ state = CMD;
+ return (CRLF);
+ }
+ /* FALLTHROUGH */
+
+ case STR1:
+ case ZSTR1:
+ dostr1:
+ if (cbuf[cpos] == ' ') {
+ cpos++;
+ state = state == OSTR ? STR2 : ++state;
+ return (SP);
+ }
+ break;
+
+ case ZSTR2:
+ if (cbuf[cpos] == '\n') {
+ state = CMD;
+ return (CRLF);
+ }
+ /* FALLTHROUGH */
+
+ case STR2:
+ cp = &cbuf[cpos];
+ n = strlen(cp);
+ cpos += n - 1;
+ /*
+ * Make sure the string is nonempty and \n terminated.
+ */
+ if (n > 1 && cbuf[cpos] == '\n') {
+ cbuf[cpos] = '\0';
+ yylval.s = copy(cp);
+ cbuf[cpos] = '\n';
+ state = ARGS;
+ return (STRING);
+ }
+ break;
+
+ case NSTR:
+ if (cbuf[cpos] == ' ') {
+ cpos++;
+ return (SP);
+ }
+ if (isdigit(cbuf[cpos])) {
+ cp = &cbuf[cpos];
+ while (isdigit(cbuf[++cpos]))
+ ;
+ c = cbuf[cpos];
+ cbuf[cpos] = '\0';
+ yylval.i = atoi(cp);
+ cbuf[cpos] = c;
+ state = STR1;
+ return (NUMBER);
+ }
+ state = STR1;
+ goto dostr1;
+
+ case ARGS:
+ if (isdigit(cbuf[cpos])) {
+ cp = &cbuf[cpos];
+ while (isdigit(cbuf[++cpos]))
+ ;
+ c = cbuf[cpos];
+ cbuf[cpos] = '\0';
+ yylval.i = atoi(cp);
+ cbuf[cpos] = c;
+ return (NUMBER);
+ }
+ switch (cbuf[cpos++]) {
+
+ case '\n':
+ state = CMD;
+ return (CRLF);
+
+ case ' ':
+ return (SP);
+
+ case ',':
+ return (COMMA);
+
+ case 'A':
+ case 'a':
+ return (A);
+
+ case 'B':
+ case 'b':
+ return (B);
+
+ case 'C':
+ case 'c':
+ return (C);
+
+ case 'E':
+ case 'e':
+ return (E);
+
+ case 'F':
+ case 'f':
+ return (F);
+
+ case 'I':
+ case 'i':
+ return (I);
+
+ case 'L':
+ case 'l':
+ return (L);
+
+ case 'N':
+ case 'n':
+ return (N);
+
+ case 'P':
+ case 'p':
+ return (P);
+
+ case 'R':
+ case 'r':
+ return (R);
+
+ case 'S':
+ case 's':
+ return (S);
+
+ case 'T':
+ case 't':
+ return (T);
+
+ }
+ break;
+
+ default:
+ fatal("Unknown state in scanner.");
+ }
+ yyerror((char *) 0);
+ state = CMD;
+ longjmp(errcatch,0);
+ }
+}
+
+static char *
+copy(char *s)
+{
+ char *p;
+
+ p = strdup(s);
+ if (p == NULL)
+ fatal("Ran out of memory.");
+ return p;
+}
+
+static void
+help(struct tab *ctab, char *s)
+{
+ struct tab *c;
+ int width, NCMDS;
+ char *type;
+ char buf[1024];
+
+ if (ctab == sitetab)
+ type = "SITE ";
+ else
+ type = "";
+ width = 0, NCMDS = 0;
+ for (c = ctab; c->name != NULL; c++) {
+ int len = strlen(c->name);
+
+ if (len > width)
+ width = len;
+ NCMDS++;
+ }
+ width = (width + 8) &~ 7;
+ if (s == 0) {
+ int i, j, w;
+ int columns, lines;
+
+ lreply(214, "The following %scommands are recognized %s.",
+ type, "(* =>'s unimplemented)");
+ columns = 76 / width;
+ if (columns == 0)
+ columns = 1;
+ lines = (NCMDS + columns - 1) / columns;
+ for (i = 0; i < lines; i++) {
+ strcpy (buf, " ");
+ for (j = 0; j < columns; j++) {
+ c = ctab + j * lines + i;
+ snprintf (buf + strlen(buf), sizeof(buf) - strlen(buf),
+ "%s%c", c->name, c->implemented ? ' ' : '*');
+ if (c + lines >= &ctab[NCMDS])
+ break;
+ w = strlen(c->name) + 1;
+ while (w < width) {
+ strcat(buf, " ");
+ w++;
+ }
+ }
+ lreply(214, buf);
+ }
+ reply(214, "Direct comments to kth-krb-bugs@pdc.kth.se");
+ return;
+ }
+ strupr(s);
+ c = lookup(ctab, s);
+ if (c == (struct tab *)0) {
+ reply(502, "Unknown command %s.", s);
+ return;
+ }
+ if (c->implemented)
+ reply(214, "Syntax: %s%s %s", type, c->name, c->help);
+ else
+ reply(214, "%s%-*s\t%s; unimplemented.", type, width,
+ c->name, c->help);
+}
+
+static void
+sizecmd(char *filename)
+{
+ switch (type) {
+ case TYPE_L:
+ case TYPE_I: {
+ struct stat stbuf;
+ if (stat(filename, &stbuf) < 0 || !S_ISREG(stbuf.st_mode))
+ reply(550, "%s: not a plain file.", filename);
+ else
+ reply(213, "%lu", (unsigned long)stbuf.st_size);
+ break; }
+ case TYPE_A: {
+ FILE *fin;
+ int c;
+ off_t count;
+ struct stat stbuf;
+ fin = fopen(filename, "r");
+ if (fin == NULL) {
+ perror_reply(550, filename);
+ return;
+ }
+ if (fstat(fileno(fin), &stbuf) < 0 || !S_ISREG(stbuf.st_mode)) {
+ reply(550, "%s: not a plain file.", filename);
+ fclose(fin);
+ return;
+ }
+
+ count = 0;
+ while((c=getc(fin)) != EOF) {
+ if (c == '\n') /* will get expanded to \r\n */
+ count++;
+ count++;
+ }
+ fclose(fin);
+
+ reply(213, "%ld", count);
+ break; }
+ default:
+ reply(504, "SIZE not implemented for Type %c.", "?AEIL"[type]);
+ }
+}
diff --git a/crypto/kerberosIV/appl/ftp/ftpd/ftpd.c b/crypto/kerberosIV/appl/ftp/ftpd/ftpd.c
new file mode 100644
index 0000000..17cd3b9
--- /dev/null
+++ b/crypto/kerberosIV/appl/ftp/ftpd/ftpd.c
@@ -0,0 +1,2076 @@
+/*
+ * Copyright (c) 1985, 1988, 1990, 1992, 1993, 1994
+ * The Regents of the University of California. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+RCSID("$Id: ftpd.c,v 1.88 1997/06/01 03:13:48 assar Exp $");
+#endif
+
+/*
+ * FTP server.
+ */
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_SYS_PARAM_H
+#include <sys/param.h>
+#endif
+#ifdef HAVE_SYS_STAT_H
+#include <sys/stat.h>
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include <sys/socket.h>
+#endif
+#if defined(HAVE_SYS_IOCTL_H) && SunOS != 4
+#include <sys/ioctl.h>
+#endif
+#ifdef TIME_WITH_SYS_TIME
+#include <sys/time.h>
+#include <time.h>
+#elif defined(HAVE_SYS_TIME_H)
+#include <sys/time.h>
+#else
+#include <time.h>
+#endif
+#ifdef HAVE_SYS_RESOURCE_H
+#include <sys/resource.h>
+#endif
+#ifdef HAVE_SYS_WAIT_H
+#include <sys/wait.h>
+#endif
+
+#ifdef HAVE_NETINET_IN_H
+#include <netinet/in.h>
+#endif
+#ifdef HAVE_NETINET_IN_SYSTM_H
+#include <netinet/in_systm.h>
+#endif
+#ifdef HAVE_NETINET_IP_H
+#include <netinet/ip.h>
+#endif
+
+#ifdef HAVE_SYS_MMAN_H
+#include <sys/mman.h>
+#endif
+
+#define FTP_NAMES
+#include <arpa/ftp.h>
+#ifdef HAVE_ARPA_INET_H
+#include <arpa/inet.h>
+#endif
+#ifdef HAVE_ARPA_TELNET_H
+#include <arpa/telnet.h>
+#endif
+
+#include <ctype.h>
+#ifdef HAVE_DIRENT_H
+#include <dirent.h>
+#endif
+#include <errno.h>
+#ifdef HAVE_FCNTL_H
+#include <fcntl.h>
+#endif
+#include <glob.h>
+#include <limits.h>
+#ifdef HAVE_PWD_H
+#include <pwd.h>
+#endif
+#include <setjmp.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <string.h>
+#ifdef HAVE_SYSLOG_H
+#include <syslog.h>
+#endif
+#include <time.h>
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+#ifdef HAVE_GRP_H
+#include <grp.h>
+#endif
+
+#include <err.h>
+
+#include "pathnames.h"
+#include "extern.h"
+#include "common.h"
+
+#include "auth.h"
+
+#include <krb.h>
+
+#include <kafs.h>
+#include "roken.h"
+
+#include <otp.h>
+
+#ifdef SOCKS
+#include <socks.h>
+extern int LIBPREFIX(fclose) __P((FILE *));
+#endif
+
+void yyparse();
+
+#ifndef LOG_FTP
+#define LOG_FTP LOG_DAEMON
+#endif
+
+static char version[] = "Version 6.00";
+
+extern off_t restart_point;
+extern char cbuf[];
+
+struct sockaddr_in ctrl_addr;
+struct sockaddr_in data_source;
+struct sockaddr_in data_dest;
+struct sockaddr_in his_addr;
+struct sockaddr_in pasv_addr;
+
+int data;
+jmp_buf errcatch, urgcatch;
+int oobflag;
+int logged_in;
+struct passwd *pw;
+int debug;
+int ftpd_timeout = 900; /* timeout after 15 minutes of inactivity */
+int maxtimeout = 7200;/* don't allow idle time to be set beyond 2 hours */
+int logging;
+int guest;
+int dochroot;
+int type;
+int form;
+int stru; /* avoid C keyword */
+int mode;
+int usedefault = 1; /* for data transfers */
+int pdata = -1; /* for passive mode */
+int transflag;
+off_t file_size;
+off_t byte_count;
+#if !defined(CMASK) || CMASK == 0
+#undef CMASK
+#define CMASK 027
+#endif
+int defumask = CMASK; /* default umask value */
+int guest_umask = 0777; /* Paranoia for anonymous users */
+char tmpline[10240];
+char hostname[MaxHostNameLen];
+char remotehost[MaxHostNameLen];
+static char ttyline[20];
+
+#define AUTH_PLAIN (1 << 0) /* allow sending passwords */
+#define AUTH_OTP (1 << 1) /* passwords are one-time */
+#define AUTH_FTP (1 << 2) /* allow anonymous login */
+
+static int auth_level = 0; /* Only allow kerberos login by default */
+
+/*
+ * Timeout intervals for retrying connections
+ * to hosts that don't accept PORT cmds. This
+ * is a kludge, but given the problems with TCP...
+ */
+#define SWAITMAX 90 /* wait at most 90 seconds */
+#define SWAITINT 5 /* interval between retries */
+
+int swaitmax = SWAITMAX;
+int swaitint = SWAITINT;
+
+#ifdef HAVE_SETPROCTITLE
+char proctitle[BUFSIZ]; /* initial part of title */
+#endif /* HAVE_SETPROCTITLE */
+
+#define LOGCMD(cmd, file) \
+ if (logging > 1) \
+ syslog(LOG_INFO,"%s %s%s", cmd, \
+ *(file) == '/' ? "" : curdir(), file);
+#define LOGCMD2(cmd, file1, file2) \
+ if (logging > 1) \
+ syslog(LOG_INFO,"%s %s%s %s%s", cmd, \
+ *(file1) == '/' ? "" : curdir(), file1, \
+ *(file2) == '/' ? "" : curdir(), file2);
+#define LOGBYTES(cmd, file, cnt) \
+ if (logging > 1) { \
+ if (cnt == (off_t)-1) \
+ syslog(LOG_INFO,"%s %s%s", cmd, \
+ *(file) == '/' ? "" : curdir(), file); \
+ else \
+ syslog(LOG_INFO, "%s %s%s = %ld bytes", \
+ cmd, (*(file) == '/') ? "" : curdir(), file, (long)cnt); \
+ }
+
+static void ack (char *);
+static void myoob (int);
+static int checkuser (char *, char *);
+static int checkaccess (char *);
+static FILE *dataconn (char *, off_t, char *);
+static void dolog (struct sockaddr_in *);
+static void end_login (void);
+static FILE *getdatasock (char *);
+static char *gunique (char *);
+static RETSIGTYPE lostconn (int);
+static int receive_data (FILE *, FILE *);
+static void send_data (FILE *, FILE *);
+static struct passwd * sgetpwnam (char *);
+static void usage(void);
+
+static char *
+curdir(void)
+{
+ static char path[MaxPathLen+1+1]; /* path + '/' + '\0' */
+
+ if (getcwd(path, sizeof(path)-2) == NULL)
+ return ("");
+ if (path[1] != '\0') /* special case for root dir. */
+ strcat(path, "/");
+ /* For guest account, skip / since it's chrooted */
+ return (guest ? path+1 : path);
+}
+
+#ifndef LINE_MAX
+#define LINE_MAX 1024
+#endif
+
+static int
+parse_auth_level(char *str)
+{
+ char *p;
+ int ret = 0;
+ char *foo = NULL;
+
+ for(p = strtok_r(str, ",", &foo);
+ p;
+ p = strtok_r(NULL, ",", &foo)) {
+ if(strcmp(p, "user") == 0)
+ ;
+ else if(strcmp(p, "otp") == 0)
+ ret |= AUTH_PLAIN|AUTH_OTP;
+ else if(strcmp(p, "ftp") == 0 ||
+ strcmp(p, "safe") == 0)
+ ret |= AUTH_FTP;
+ else if(strcmp(p, "plain") == 0)
+ ret |= AUTH_PLAIN;
+ else if(strcmp(p, "none") == 0)
+ ret |= AUTH_PLAIN|AUTH_FTP;
+ else
+ warnx("bad value for -a: `%s'", p);
+ }
+ return ret;
+}
+
+/*
+ * Print usage and die.
+ */
+
+static void
+usage (void)
+{
+ fprintf (stderr,
+ "Usage: %s [-d] [-i] [-g guest_umask] [-l] [-p port]"
+ " [-t timeout] [-T max_timeout] [-u umask] [-v]"
+ " [-a auth_level] \n",
+ __progname);
+ exit (1);
+}
+
+int
+main(int argc, char **argv)
+{
+ int addrlen, ch, on = 1, tos;
+ char *cp, line[LINE_MAX];
+ FILE *fd;
+ int not_inetd = 0;
+ int port;
+ struct servent *sp;
+ char tkfile[1024];
+
+ set_progname (argv[0]);
+
+ /* detach from any tickets and tokens */
+
+ snprintf(tkfile, sizeof(tkfile),
+ "/tmp/ftp_%u", (unsigned)getpid());
+ krb_set_tkt_string(tkfile);
+ if(k_hasafs())
+ k_setpag();
+
+ sp = getservbyname("ftp", "tcp");
+ if(sp)
+ port = sp->s_port;
+ else
+ port = htons(21);
+
+ while ((ch = getopt(argc, argv, "a:dg:ilp:t:T:u:v")) != EOF) {
+ switch (ch) {
+ case 'a':
+ auth_level = parse_auth_level(optarg);
+ break;
+ case 'd':
+ debug = 1;
+ break;
+
+ case 'i':
+ not_inetd = 1;
+ break;
+ case 'g':
+ {
+ long val = 0;
+
+ val = strtol(optarg, &optarg, 8);
+ if (*optarg != '\0' || val < 0)
+ warnx("bad value for -g");
+ else
+ guest_umask = val;
+ break;
+ }
+ case 'l':
+ logging++; /* > 1 == extra logging */
+ break;
+
+ case 'p':
+ sp = getservbyname(optarg, "tcp");
+ if(sp)
+ port = sp->s_port;
+ else
+ if(isdigit(optarg[0]))
+ port = htons(atoi(optarg));
+ else
+ warnx("bad value for -p");
+ break;
+
+ case 't':
+ ftpd_timeout = atoi(optarg);
+ if (maxtimeout < ftpd_timeout)
+ maxtimeout = ftpd_timeout;
+ break;
+
+ case 'T':
+ maxtimeout = atoi(optarg);
+ if (ftpd_timeout > maxtimeout)
+ ftpd_timeout = maxtimeout;
+ break;
+
+ case 'u':
+ {
+ long val = 0;
+
+ val = strtol(optarg, &optarg, 8);
+ if (*optarg != '\0' || val < 0)
+ warnx("bad value for -u");
+ else
+ defumask = val;
+ break;
+ }
+
+ case 'v':
+ debug = 1;
+ break;
+
+ default:
+ usage ();
+ }
+ }
+
+ if(not_inetd)
+ mini_inetd (port);
+
+ /*
+ * LOG_NDELAY sets up the logging connection immediately,
+ * necessary for anonymous ftp's that chroot and can't do it later.
+ */
+ openlog("ftpd", LOG_PID | LOG_NDELAY, LOG_FTP);
+ addrlen = sizeof(his_addr);
+ if (getpeername(0, (struct sockaddr *)&his_addr, &addrlen) < 0) {
+ syslog(LOG_ERR, "getpeername (%s): %m",argv[0]);
+ exit(1);
+ }
+ addrlen = sizeof(ctrl_addr);
+ if (getsockname(0, (struct sockaddr *)&ctrl_addr, &addrlen) < 0) {
+ syslog(LOG_ERR, "getsockname (%s): %m",argv[0]);
+ exit(1);
+ }
+#if defined(IP_TOS) && defined(HAVE_SETSOCKOPT)
+ tos = IPTOS_LOWDELAY;
+ if (setsockopt(0, IPPROTO_IP, IP_TOS, (void *)&tos, sizeof(int)) < 0)
+ syslog(LOG_WARNING, "setsockopt (IP_TOS): %m");
+#endif
+ data_source.sin_port = htons(ntohs(ctrl_addr.sin_port) - 1);
+ debug = 0;
+
+ /* set this here so it can be put in wtmp */
+ snprintf(ttyline, sizeof(ttyline), "ftp%u", (unsigned)getpid());
+
+
+ /* freopen(_PATH_DEVNULL, "w", stderr); */
+ signal(SIGPIPE, lostconn);
+ signal(SIGCHLD, SIG_IGN);
+#ifdef SIGURG
+ if (signal(SIGURG, myoob) == SIG_ERR)
+ syslog(LOG_ERR, "signal: %m");
+#endif
+
+ auth_init();
+
+ /* Try to handle urgent data inline */
+#if defined(SO_OOBINLINE) && defined(HAVE_SETSOCKOPT)
+ if (setsockopt(0, SOL_SOCKET, SO_OOBINLINE, (void *)&on,
+ sizeof(on)) < 0)
+ syslog(LOG_ERR, "setsockopt: %m");
+#endif
+
+#ifdef F_SETOWN
+ if (fcntl(fileno(stdin), F_SETOWN, getpid()) == -1)
+ syslog(LOG_ERR, "fcntl F_SETOWN: %m");
+#endif
+ dolog(&his_addr);
+ /*
+ * Set up default state
+ */
+ data = -1;
+ type = TYPE_A;
+ form = FORM_N;
+ stru = STRU_F;
+ mode = MODE_S;
+ tmpline[0] = '\0';
+
+ /* If logins are disabled, print out the message. */
+ if ((fd = fopen(_PATH_NOLOGIN,"r")) != NULL) {
+ while (fgets(line, sizeof(line), fd) != NULL) {
+ if ((cp = strchr(line, '\n')) != NULL)
+ *cp = '\0';
+ lreply(530, "%s", line);
+ }
+ fflush(stdout);
+ fclose(fd);
+ reply(530, "System not available.");
+ exit(0);
+ }
+ if ((fd = fopen(_PATH_FTPWELCOME, "r")) != NULL) {
+ while (fgets(line, sizeof(line), fd) != NULL) {
+ if ((cp = strchr(line, '\n')) != NULL)
+ *cp = '\0';
+ lreply(220, "%s", line);
+ }
+ fflush(stdout);
+ fclose(fd);
+ /* reply(220,) must follow */
+ }
+ k_gethostname(hostname, sizeof(hostname));
+ reply(220, "%s FTP server (%s+%s) ready.", hostname,
+ version, krb4_version);
+ setjmp(errcatch);
+ for (;;)
+ yyparse();
+ /* NOTREACHED */
+}
+
+static RETSIGTYPE
+lostconn(int signo)
+{
+
+ if (debug)
+ syslog(LOG_DEBUG, "lost connection");
+ dologout(-1);
+}
+
+/*
+ * Helper function for sgetpwnam().
+ */
+static char *
+sgetsave(char *s)
+{
+ char *new = strdup(s);
+
+ if (new == NULL) {
+ perror_reply(421, "Local resource failure: malloc");
+ dologout(1);
+ /* NOTREACHED */
+ }
+ return new;
+}
+
+/*
+ * Save the result of a getpwnam. Used for USER command, since
+ * the data returned must not be clobbered by any other command
+ * (e.g., globbing).
+ */
+static struct passwd *
+sgetpwnam(char *name)
+{
+ static struct passwd save;
+ struct passwd *p;
+
+ if ((p = k_getpwnam(name)) == NULL)
+ return (p);
+ if (save.pw_name) {
+ free(save.pw_name);
+ free(save.pw_passwd);
+ free(save.pw_gecos);
+ free(save.pw_dir);
+ free(save.pw_shell);
+ }
+ save = *p;
+ save.pw_name = sgetsave(p->pw_name);
+ save.pw_passwd = sgetsave(p->pw_passwd);
+ save.pw_gecos = sgetsave(p->pw_gecos);
+ save.pw_dir = sgetsave(p->pw_dir);
+ save.pw_shell = sgetsave(p->pw_shell);
+ return (&save);
+}
+
+static int login_attempts; /* number of failed login attempts */
+static int askpasswd; /* had user command, ask for passwd */
+static char curname[10]; /* current USER name */
+OtpContext otp_ctx;
+
+/*
+ * USER command.
+ * Sets global passwd pointer pw if named account exists and is acceptable;
+ * sets askpasswd if a PASS command is expected. If logged in previously,
+ * need to reset state. If name is "ftp" or "anonymous", the name is not in
+ * _PATH_FTPUSERS, and ftp account exists, set guest and pw, then just return.
+ * If account doesn't exist, ask for passwd anyway. Otherwise, check user
+ * requesting login privileges. Disallow anyone who does not have a standard
+ * shell as returned by getusershell(). Disallow anyone mentioned in the file
+ * _PATH_FTPUSERS to allow people such as root and uucp to be avoided.
+ */
+void
+user(char *name)
+{
+ char *cp, *shell;
+
+ if(auth_level == 0 && !auth_complete){
+ reply(530, "No login allowed without authorization.");
+ return;
+ }
+
+ if (logged_in) {
+ if (guest) {
+ reply(530, "Can't change user from guest login.");
+ return;
+ } else if (dochroot) {
+ reply(530, "Can't change user from chroot user.");
+ return;
+ }
+ end_login();
+ }
+
+ guest = 0;
+ if (strcmp(name, "ftp") == 0 || strcmp(name, "anonymous") == 0) {
+ if ((auth_level & AUTH_FTP) == 0 ||
+ checkaccess("ftp") ||
+ checkaccess("anonymous"))
+ reply(530, "User %s access denied.", name);
+ else if ((pw = sgetpwnam("ftp")) != NULL) {
+ guest = 1;
+ defumask = guest_umask; /* paranoia for incoming */
+ askpasswd = 1;
+ reply(331, "Guest login ok, type your name as password.");
+ } else
+ reply(530, "User %s unknown.", name);
+ if (!askpasswd && logging)
+ syslog(LOG_NOTICE,
+ "ANONYMOUS FTP LOGIN REFUSED FROM %s(%s)",
+ remotehost, inet_ntoa(his_addr.sin_addr));
+ return;
+ }
+ if((auth_level & AUTH_PLAIN) == 0 && !auth_complete){
+ reply(530, "Only authorized and anonymous login allowed.");
+ return;
+ }
+ if ((pw = sgetpwnam(name))) {
+ if ((shell = pw->pw_shell) == NULL || *shell == 0)
+ shell = _PATH_BSHELL;
+ while ((cp = getusershell()) != NULL)
+ if (strcmp(cp, shell) == 0)
+ break;
+ endusershell();
+
+ if (cp == NULL || checkaccess(name)) {
+ reply(530, "User %s access denied.", name);
+ if (logging)
+ syslog(LOG_NOTICE,
+ "FTP LOGIN REFUSED FROM %s(%s), %s",
+ remotehost,
+ inet_ntoa(his_addr.sin_addr),
+ name);
+ pw = (struct passwd *) NULL;
+ return;
+ }
+ }
+ if (logging)
+ strncpy(curname, name, sizeof(curname)-1);
+ if(auth_ok())
+ ct->userok(name);
+ else {
+ char ss[256];
+
+ if (otp_challenge(&otp_ctx, name, ss, sizeof(ss)) == 0) {
+ reply(331, "Password %s for %s required.",
+ ss, name);
+ askpasswd = 1;
+ } else if ((auth_level & AUTH_OTP) == 0) {
+ reply(331, "Password required for %s.", name);
+ askpasswd = 1;
+ } else {
+ char *s;
+
+ if (s = otp_error (&otp_ctx))
+ lreply(530, "OTP: %s", s);
+ reply(530,
+ "Only authorized, anonymous and OTP "
+ "login allowed.");
+ }
+
+ }
+ /*
+ * Delay before reading passwd after first failed
+ * attempt to slow down passwd-guessing programs.
+ */
+ if (login_attempts)
+ sleep(login_attempts);
+}
+
+/*
+ * Check if a user is in the file "fname"
+ */
+static int
+checkuser(char *fname, char *name)
+{
+ FILE *fd;
+ int found = 0;
+ char *p, line[BUFSIZ];
+
+ if ((fd = fopen(fname, "r")) != NULL) {
+ while (fgets(line, sizeof(line), fd) != NULL)
+ if ((p = strchr(line, '\n')) != NULL) {
+ *p = '\0';
+ if (line[0] == '#')
+ continue;
+ if (strcmp(line, name) == 0) {
+ found = 1;
+ break;
+ }
+ }
+ fclose(fd);
+ }
+ return (found);
+}
+
+
+/*
+ * Determine whether a user has access, based on information in
+ * _PATH_FTPUSERS. The users are listed one per line, with `allow'
+ * or `deny' after the username. If anything other than `allow', or
+ * just nothing, is given after the username, `deny' is assumed.
+ *
+ * If the user is not found in the file, but the pseudo-user `*' is,
+ * the permission is taken from that line.
+ *
+ * This preserves the old semantics where if a user was listed in the
+ * file he was denied, otherwise he was allowed.
+ *
+ * Return 1 if the user is denied, or 0 if he is allowed. */
+
+static int
+match(const char *pattern, const char *string)
+{
+#ifdef HAVE_FNMATCH
+ return fnmatch(pattern, string, FNM_NOESCAPE);
+#else
+ return strcmp(pattern, "*") != 0 && strcmp(pattern, string) != 0;
+#endif
+}
+
+static int
+checkaccess(char *name)
+{
+#define ALLOWED 0
+#define NOT_ALLOWED 1
+ FILE *fd;
+ int allowed = ALLOWED;
+ char *user, *perm, line[BUFSIZ];
+ char *foo;
+
+ fd = fopen(_PATH_FTPUSERS, "r");
+
+ if(fd == NULL)
+ return allowed;
+
+ while (fgets(line, sizeof(line), fd) != NULL) {
+ foo = NULL;
+ user = strtok_r(line, " \t\n", &foo);
+ if (user == NULL || user[0] == '#')
+ continue;
+ perm = strtok_r(NULL, " \t\n", &foo);
+ if (match(user, name) == 0){
+ if(perm && strcmp(perm, "allow") == 0)
+ allowed = ALLOWED;
+ else
+ allowed = NOT_ALLOWED;
+ break;
+ }
+ }
+ fclose(fd);
+ return allowed;
+}
+#undef ALLOWED
+#undef NOT_ALLOWED
+
+int do_login(int code, char *passwd)
+{
+ FILE *fd;
+ login_attempts = 0; /* this time successful */
+ if (setegid((gid_t)pw->pw_gid) < 0) {
+ reply(550, "Can't set gid.");
+ return -1;
+ }
+ initgroups(pw->pw_name, pw->pw_gid);
+
+ /* open wtmp before chroot */
+ logwtmp(ttyline, pw->pw_name, remotehost);
+ logged_in = 1;
+
+ dochroot = checkuser(_PATH_FTPCHROOT, pw->pw_name);
+ if (guest) {
+ /*
+ * We MUST do a chdir() after the chroot. Otherwise
+ * the old current directory will be accessible as "."
+ * outside the new root!
+ */
+ if (chroot(pw->pw_dir) < 0 || chdir("/") < 0) {
+ reply(550, "Can't set guest privileges.");
+ return -1;
+ }
+ } else if (dochroot) {
+ if (chroot(pw->pw_dir) < 0 || chdir("/") < 0) {
+ reply(550, "Can't change root.");
+ return -1;
+ }
+ } else if (chdir(pw->pw_dir) < 0) {
+ if (chdir("/") < 0) {
+ reply(530, "User %s: can't change directory to %s.",
+ pw->pw_name, pw->pw_dir);
+ return -1;
+ } else
+ lreply(code, "No directory! Logging in with home=/");
+ }
+ if (seteuid((uid_t)pw->pw_uid) < 0) {
+ reply(550, "Can't set uid.");
+ return -1;
+ }
+ /*
+ * Display a login message, if it exists.
+ * N.B. reply(code,) must follow the message.
+ */
+ if ((fd = fopen(_PATH_FTPLOGINMESG, "r")) != NULL) {
+ char *cp, line[LINE_MAX];
+
+ while (fgets(line, sizeof(line), fd) != NULL) {
+ if ((cp = strchr(line, '\n')) != NULL)
+ *cp = '\0';
+ lreply(code, "%s", line);
+ }
+ }
+ if (guest) {
+ reply(code, "Guest login ok, access restrictions apply.");
+#ifdef HAVE_SETPROCTITLE
+ snprintf (proctitle, sizeof(proctitle),
+ "%s: anonymous/%s",
+ remotehost,
+ passwd);
+#endif /* HAVE_SETPROCTITLE */
+ if (logging)
+ syslog(LOG_INFO, "ANONYMOUS FTP LOGIN FROM %s(%s), %s",
+ remotehost,
+ inet_ntoa(his_addr.sin_addr),
+ passwd);
+ } else {
+ reply(code, "User %s logged in.", pw->pw_name);
+#ifdef HAVE_SETPROCTITLE
+ snprintf(proctitle, sizeof(proctitle), "%s: %s", remotehost, pw->pw_name);
+ setproctitle(proctitle);
+#endif /* HAVE_SETPROCTITLE */
+ if (logging)
+ syslog(LOG_INFO, "FTP LOGIN FROM %s(%s) as %s",
+ remotehost,
+ inet_ntoa(his_addr.sin_addr),
+ pw->pw_name);
+ }
+ umask(defumask);
+ return 0;
+}
+
+/*
+ * Terminate login as previous user, if any, resetting state;
+ * used when USER command is given or login fails.
+ */
+static void
+end_login(void)
+{
+
+ seteuid((uid_t)0);
+ if (logged_in)
+ logwtmp(ttyline, "", "");
+ pw = NULL;
+ logged_in = 0;
+ guest = 0;
+ dochroot = 0;
+}
+
+void
+pass(char *passwd)
+{
+ int rval;
+
+ /* some clients insists on sending a password */
+ if (logged_in && askpasswd == 0){
+ reply(230, "Dumpucko!");
+ return;
+ }
+
+ if (logged_in || askpasswd == 0) {
+ reply(503, "Login with USER first.");
+ return;
+ }
+ askpasswd = 0;
+ rval = 1;
+ if (!guest) { /* "ftp" is only account allowed no password */
+ if (pw == NULL)
+ rval = 1; /* failure below */
+ else if (otp_verify_user (&otp_ctx, passwd) == 0) {
+ rval = 0;
+ } else if((auth_level & AUTH_OTP) == 0) {
+ char realm[REALM_SZ];
+ if((rval = krb_get_lrealm(realm, 1)) == KSUCCESS)
+ rval = krb_verify_user(pw->pw_name, "", realm,
+ passwd, 1, NULL);
+ if (rval == KSUCCESS ){
+ if(k_hasafs())
+ k_afsklog(0, 0);
+ }else
+ rval = unix_verify_user(pw->pw_name, passwd);
+ } else {
+ char *s;
+
+ if (s = otp_error(&otp_ctx))
+ lreply(530, "OTP: %s", s);
+ }
+ memset (passwd, 0, strlen(passwd));
+
+ /*
+ * If rval == 1, the user failed the authentication
+ * check above. If rval == 0, either Kerberos or
+ * local authentication succeeded.
+ */
+ if (rval) {
+ reply(530, "Login incorrect.");
+ if (logging)
+ syslog(LOG_NOTICE,
+ "FTP LOGIN FAILED FROM %s(%s), %s",
+ remotehost,
+ inet_ntoa(his_addr.sin_addr),
+ curname);
+ pw = NULL;
+ if (login_attempts++ >= 5) {
+ syslog(LOG_NOTICE,
+ "repeated login failures from %s(%s)",
+ remotehost,
+ inet_ntoa(his_addr.sin_addr));
+ exit(0);
+ }
+ return;
+ }
+ }
+ if(!do_login(230, passwd))
+ return;
+
+ /* Forget all about it... */
+ end_login();
+}
+
+void
+retrieve(char *cmd, char *name)
+{
+ FILE *fin = NULL, *dout;
+ struct stat st;
+ int (*closefunc) (FILE *);
+ char line[BUFSIZ];
+
+
+ if (cmd == 0) {
+ fin = fopen(name, "r");
+ closefunc = fclose;
+ st.st_size = 0;
+ if(fin == NULL){
+ struct cmds {
+ char *ext;
+ char *cmd;
+ } cmds[] = {
+ {".tar", "/bin/gtar cPf - %s"},
+ {".tar.gz", "/bin/gtar zcPf - %s"},
+ {".tar.Z", "/bin/gtar ZcPf - %s"},
+ {".gz", "/bin/gzip -c %s"},
+ {".Z", "/bin/compress -c %s"},
+ {NULL, NULL}
+ };
+ struct cmds *p;
+ for(p = cmds; p->ext; p++){
+ char *tail = name + strlen(name) - strlen(p->ext);
+ char c = *tail;
+
+ if(strcmp(tail, p->ext) == 0 &&
+ (*tail = 0) == 0 &&
+ access(name, R_OK) == 0){
+ snprintf (line, sizeof(line), p->cmd, name);
+ *tail = c;
+ break;
+ }
+ *tail = c;
+ }
+ if(p->ext){
+ fin = ftpd_popen(line, "r", 0, 0);
+ closefunc = ftpd_pclose;
+ st.st_size = -1;
+ cmd = line;
+ }
+ }
+ } else {
+ snprintf(line, sizeof(line), cmd, name);
+ name = line;
+ fin = ftpd_popen(line, "r", 1, 0);
+ closefunc = ftpd_pclose;
+ st.st_size = -1;
+ }
+ if (fin == NULL) {
+ if (errno != 0) {
+ perror_reply(550, name);
+ if (cmd == 0) {
+ LOGCMD("get", name);
+ }
+ }
+ return;
+ }
+ byte_count = -1;
+ if (cmd == 0){
+ if(fstat(fileno(fin), &st) < 0 || !S_ISREG(st.st_mode)) {
+ reply(550, "%s: not a plain file.", name);
+ goto done;
+ }
+ }
+ if (restart_point) {
+ if (type == TYPE_A) {
+ off_t i, n;
+ int c;
+
+ n = restart_point;
+ i = 0;
+ while (i++ < n) {
+ if ((c=getc(fin)) == EOF) {
+ perror_reply(550, name);
+ goto done;
+ }
+ if (c == '\n')
+ i++;
+ }
+ } else if (lseek(fileno(fin), restart_point, SEEK_SET) < 0) {
+ perror_reply(550, name);
+ goto done;
+ }
+ }
+ dout = dataconn(name, st.st_size, "w");
+ if (dout == NULL)
+ goto done;
+ set_buffer_size(fileno(dout), 0);
+ send_data(fin, dout);
+ fclose(dout);
+ data = -1;
+ pdata = -1;
+done:
+ if (cmd == 0)
+ LOGBYTES("get", name, byte_count);
+ (*closefunc)(fin);
+}
+
+/* filename sanity check */
+
+int
+filename_check(char *filename)
+{
+ static const char good_chars[] = "+-=_,.";
+ char *p;
+
+ p = strrchr(filename, '/');
+ if(p)
+ filename = p + 1;
+
+ p = filename;
+
+ if(isalnum(*p)){
+ p++;
+ while(*p && (isalnum(*p) || strchr(good_chars, *p)))
+ p++;
+ if(*p == '\0')
+ return 0;
+ }
+ lreply(553, "\"%s\" is an illegal filename.", filename);
+ lreply(553, "The filename must start with an alphanumeric "
+ "character and must only");
+ reply(553, "consist of alphanumeric characters or any of the following: %s",
+ good_chars);
+ return 1;
+}
+
+void
+do_store(char *name, char *mode, int unique)
+{
+ FILE *fout, *din;
+ struct stat st;
+ int (*closefunc) (FILE *);
+
+ if(guest && filename_check(name))
+ return;
+ if (unique && stat(name, &st) == 0 &&
+ (name = gunique(name)) == NULL) {
+ LOGCMD(*mode == 'w' ? "put" : "append", name);
+ return;
+ }
+
+ if (restart_point)
+ mode = "r+";
+ fout = fopen(name, mode);
+ closefunc = fclose;
+ if (fout == NULL) {
+ perror_reply(553, name);
+ LOGCMD(*mode == 'w' ? "put" : "append", name);
+ return;
+ }
+ byte_count = -1;
+ if (restart_point) {
+ if (type == TYPE_A) {
+ off_t i, n;
+ int c;
+
+ n = restart_point;
+ i = 0;
+ while (i++ < n) {
+ if ((c=getc(fout)) == EOF) {
+ perror_reply(550, name);
+ goto done;
+ }
+ if (c == '\n')
+ i++;
+ }
+ /*
+ * We must do this seek to "current" position
+ * because we are changing from reading to
+ * writing.
+ */
+ if (fseek(fout, 0L, SEEK_CUR) < 0) {
+ perror_reply(550, name);
+ goto done;
+ }
+ } else if (lseek(fileno(fout), restart_point, SEEK_SET) < 0) {
+ perror_reply(550, name);
+ goto done;
+ }
+ }
+ din = dataconn(name, (off_t)-1, "r");
+ if (din == NULL)
+ goto done;
+ set_buffer_size(fileno(din), 1);
+ if (receive_data(din, fout) == 0) {
+ if (unique)
+ reply(226, "Transfer complete (unique file name:%s).",
+ name);
+ else
+ reply(226, "Transfer complete.");
+ }
+ fclose(din);
+ data = -1;
+ pdata = -1;
+done:
+ LOGBYTES(*mode == 'w' ? "put" : "append", name, byte_count);
+ (*closefunc)(fout);
+}
+
+static FILE *
+getdatasock(char *mode)
+{
+ int on = 1, s, t, tries;
+
+ if (data >= 0)
+ return (fdopen(data, mode));
+ seteuid((uid_t)0);
+ s = socket(AF_INET, SOCK_STREAM, 0);
+ if (s < 0)
+ goto bad;
+#if defined(SO_REUSEADDR) && defined(HAVE_SETSOCKOPT)
+ if (setsockopt(s, SOL_SOCKET, SO_REUSEADDR,
+ (void *) &on, sizeof(on)) < 0)
+ goto bad;
+#endif
+ /* anchor socket to avoid multi-homing problems */
+ data_source.sin_family = AF_INET;
+ data_source.sin_addr = ctrl_addr.sin_addr;
+ for (tries = 1; ; tries++) {
+ if (bind(s, (struct sockaddr *)&data_source,
+ sizeof(data_source)) >= 0)
+ break;
+ if (errno != EADDRINUSE || tries > 10)
+ goto bad;
+ sleep(tries);
+ }
+ seteuid((uid_t)pw->pw_uid);
+#if defined(IP_TOS) && defined(HAVE_SETSOCKOPT)
+ on = IPTOS_THROUGHPUT;
+ if (setsockopt(s, IPPROTO_IP, IP_TOS, (void *)&on, sizeof(int)) < 0)
+ syslog(LOG_WARNING, "setsockopt (IP_TOS): %m");
+#endif
+ return (fdopen(s, mode));
+bad:
+ /* Return the real value of errno (close may change it) */
+ t = errno;
+ seteuid((uid_t)pw->pw_uid);
+ close(s);
+ errno = t;
+ return (NULL);
+}
+
+static FILE *
+dataconn(char *name, off_t size, char *mode)
+{
+ char sizebuf[32];
+ FILE *file;
+ int retry = 0, tos;
+
+ file_size = size;
+ byte_count = 0;
+ if (size != (off_t) -1)
+ snprintf(sizebuf, sizeof(sizebuf), " (%ld bytes)", size);
+ else
+ strcpy(sizebuf, "");
+ if (pdata >= 0) {
+ struct sockaddr_in from;
+ int s, fromlen = sizeof(from);
+
+ s = accept(pdata, (struct sockaddr *)&from, &fromlen);
+ if (s < 0) {
+ reply(425, "Can't open data connection.");
+ close(pdata);
+ pdata = -1;
+ return (NULL);
+ }
+ close(pdata);
+ pdata = s;
+#if defined(IP_TOS) && defined(HAVE_SETSOCKOPT)
+ tos = IPTOS_THROUGHPUT;
+ setsockopt(s, IPPROTO_IP, IP_TOS, (void *)&tos,
+ sizeof(int));
+#endif
+ reply(150, "Opening %s mode data connection for '%s'%s.",
+ type == TYPE_A ? "ASCII" : "BINARY", name, sizebuf);
+ return (fdopen(pdata, mode));
+ }
+ if (data >= 0) {
+ reply(125, "Using existing data connection for '%s'%s.",
+ name, sizebuf);
+ usedefault = 1;
+ return (fdopen(data, mode));
+ }
+ if (usedefault)
+ data_dest = his_addr;
+ usedefault = 1;
+ file = getdatasock(mode);
+ if (file == NULL) {
+ reply(425, "Can't create data socket (%s,%d): %s.",
+ inet_ntoa(data_source.sin_addr),
+ ntohs(data_source.sin_port), strerror(errno));
+ return (NULL);
+ }
+ data = fileno(file);
+ while (connect(data, (struct sockaddr *)&data_dest,
+ sizeof(data_dest)) < 0) {
+ if (errno == EADDRINUSE && retry < swaitmax) {
+ sleep((unsigned) swaitint);
+ retry += swaitint;
+ continue;
+ }
+ perror_reply(425, "Can't build data connection");
+ fclose(file);
+ data = -1;
+ return (NULL);
+ }
+ reply(150, "Opening %s mode data connection for '%s'%s.",
+ type == TYPE_A ? "ASCII" : "BINARY", name, sizebuf);
+ return (file);
+}
+
+/*
+ * Tranfer the contents of "instr" to "outstr" peer using the appropriate
+ * encapsulation of the data subject * to Mode, Structure, and Type.
+ *
+ * NB: Form isn't handled.
+ */
+static void
+send_data(FILE *instr, FILE *outstr)
+{
+ int c, cnt, filefd, netfd;
+ static char *buf;
+ static size_t bufsize;
+ int i = 0;
+ char s[1024];
+
+ transflag++;
+ if (setjmp(urgcatch)) {
+ transflag = 0;
+ return;
+ }
+ switch (type) {
+
+ case TYPE_A:
+ while ((c = getc(instr)) != EOF) {
+ byte_count++;
+ if(i > 1022){
+ auth_write(fileno(outstr), s, i);
+ i = 0;
+ }
+ if(c == '\n')
+ s[i++] = '\r';
+ s[i++] = c;
+ }
+ if(i)
+ auth_write(fileno(outstr), s, i);
+ auth_write(fileno(outstr), s, 0);
+ fflush(outstr);
+ transflag = 0;
+ if (ferror(instr))
+ goto file_err;
+ if (ferror(outstr))
+ goto data_err;
+ reply(226, "Transfer complete.");
+ return;
+
+ case TYPE_I:
+ case TYPE_L:
+#ifdef HAVE_MMAP
+#ifndef MAP_FAILED
+#define MAP_FAILED (-1)
+#endif
+ {
+ struct stat st;
+ char *chunk;
+ int in = fileno(instr);
+ if(fstat(in, &st) == 0 && S_ISREG(st.st_mode)) {
+ chunk = mmap(0, st.st_size, PROT_READ, MAP_SHARED, in, 0);
+ if(chunk != (void *)MAP_FAILED) {
+ cnt = st.st_size - restart_point;
+ auth_write(fileno(outstr),
+ chunk + restart_point,
+ cnt);
+ munmap(chunk, st.st_size);
+ auth_write(fileno(outstr), NULL, 0);
+ byte_count = cnt;
+ transflag = 0;
+ }
+ }
+ }
+
+#endif
+ if(transflag){
+ struct stat st;
+
+ netfd = fileno(outstr);
+ filefd = fileno(instr);
+ buf = alloc_buffer (buf, &bufsize,
+ fstat(filefd, &st) >= 0 ? &st : NULL);
+ if (buf == NULL) {
+ transflag = 0;
+ perror_reply(451, "Local resource failure: malloc");
+ return;
+ }
+ while ((cnt = read(filefd, buf, bufsize)) > 0 &&
+ auth_write(netfd, buf, cnt) == cnt)
+ byte_count += cnt;
+ auth_write(netfd, buf, 0); /* to end an encrypted stream */
+ transflag = 0;
+ if (cnt != 0) {
+ if (cnt < 0)
+ goto file_err;
+ goto data_err;
+ }
+ }
+ reply(226, "Transfer complete.");
+ return;
+ default:
+ transflag = 0;
+ reply(550, "Unimplemented TYPE %d in send_data", type);
+ return;
+ }
+
+data_err:
+ transflag = 0;
+ perror_reply(426, "Data connection");
+ return;
+
+file_err:
+ transflag = 0;
+ perror_reply(551, "Error on input file");
+}
+
+/*
+ * Transfer data from peer to "outstr" using the appropriate encapulation of
+ * the data subject to Mode, Structure, and Type.
+ *
+ * N.B.: Form isn't handled.
+ */
+static int
+receive_data(FILE *instr, FILE *outstr)
+{
+ int cnt, bare_lfs = 0;
+ static char *buf;
+ static size_t bufsize;
+ struct stat st;
+
+ transflag++;
+ if (setjmp(urgcatch)) {
+ transflag = 0;
+ return (-1);
+ }
+
+ buf = alloc_buffer (buf, &bufsize,
+ fstat(fileno(outstr), &st) >= 0 ? &st : NULL);
+ if (buf == NULL) {
+ transflag = 0;
+ perror_reply(451, "Local resource failure: malloc");
+ return -1;
+ }
+
+ switch (type) {
+
+ case TYPE_I:
+ case TYPE_L:
+ while ((cnt = auth_read(fileno(instr), buf, bufsize)) > 0) {
+ if (write(fileno(outstr), buf, cnt) != cnt)
+ goto file_err;
+ byte_count += cnt;
+ }
+ if (cnt < 0)
+ goto data_err;
+ transflag = 0;
+ return (0);
+
+ case TYPE_E:
+ reply(553, "TYPE E not implemented.");
+ transflag = 0;
+ return (-1);
+
+ case TYPE_A:
+ {
+ char *p, *q;
+ int cr_flag = 0;
+ while ((cnt = auth_read(fileno(instr),
+ buf + cr_flag,
+ bufsize - cr_flag)) > 0){
+ byte_count += cnt;
+ cnt += cr_flag;
+ cr_flag = 0;
+ for(p = buf, q = buf; p < buf + cnt;) {
+ if(*p == '\n')
+ bare_lfs++;
+ if(*p == '\r')
+ if(p == buf + cnt - 1){
+ cr_flag = 1;
+ p++;
+ continue;
+ }else if(p[1] == '\n'){
+ *q++ = '\n';
+ p += 2;
+ continue;
+ }
+ *q++ = *p++;
+ }
+ fwrite(buf, q - buf, 1, outstr);
+ if(cr_flag)
+ buf[0] = '\r';
+ }
+ if(cr_flag)
+ putc('\r', outstr);
+ fflush(outstr);
+ if (ferror(instr))
+ goto data_err;
+ if (ferror(outstr))
+ goto file_err;
+ transflag = 0;
+ if (bare_lfs) {
+ lreply(226, "WARNING! %d bare linefeeds received in ASCII mode\r\n"
+ " File may not have transferred correctly.\r\n",
+ bare_lfs);
+ }
+ return (0);
+ }
+ default:
+ reply(550, "Unimplemented TYPE %d in receive_data", type);
+ transflag = 0;
+ return (-1);
+ }
+
+data_err:
+ transflag = 0;
+ perror_reply(426, "Data Connection");
+ return (-1);
+
+file_err:
+ transflag = 0;
+ perror_reply(452, "Error writing file");
+ return (-1);
+}
+
+void
+statfilecmd(char *filename)
+{
+ FILE *fin;
+ int c;
+ char line[LINE_MAX];
+
+ snprintf(line, sizeof(line), "/bin/ls -la %s", filename);
+ fin = ftpd_popen(line, "r", 1, 0);
+ lreply(211, "status of %s:", filename);
+ while ((c = getc(fin)) != EOF) {
+ if (c == '\n') {
+ if (ferror(stdout)){
+ perror_reply(421, "control connection");
+ ftpd_pclose(fin);
+ dologout(1);
+ /* NOTREACHED */
+ }
+ if (ferror(fin)) {
+ perror_reply(551, filename);
+ ftpd_pclose(fin);
+ return;
+ }
+ putc('\r', stdout);
+ }
+ putc(c, stdout);
+ }
+ ftpd_pclose(fin);
+ reply(211, "End of Status");
+}
+
+void
+statcmd(void)
+{
+#if 0
+ struct sockaddr_in *sin;
+ u_char *a, *p;
+
+ lreply(211, "%s FTP server status:", hostname, version);
+ printf(" %s\r\n", version);
+ printf(" Connected to %s", remotehost);
+ if (!isdigit(remotehost[0]))
+ printf(" (%s)", inet_ntoa(his_addr.sin_addr));
+ printf("\r\n");
+ if (logged_in) {
+ if (guest)
+ printf(" Logged in anonymously\r\n");
+ else
+ printf(" Logged in as %s\r\n", pw->pw_name);
+ } else if (askpasswd)
+ printf(" Waiting for password\r\n");
+ else
+ printf(" Waiting for user name\r\n");
+ printf(" TYPE: %s", typenames[type]);
+ if (type == TYPE_A || type == TYPE_E)
+ printf(", FORM: %s", formnames[form]);
+ if (type == TYPE_L)
+#if NBBY == 8
+ printf(" %d", NBBY);
+#else
+ printf(" %d", bytesize); /* need definition! */
+#endif
+ printf("; STRUcture: %s; transfer MODE: %s\r\n",
+ strunames[stru], modenames[mode]);
+ if (data != -1)
+ printf(" Data connection open\r\n");
+ else if (pdata != -1) {
+ printf(" in Passive mode");
+ sin = &pasv_addr;
+ goto printaddr;
+ } else if (usedefault == 0) {
+ printf(" PORT");
+ sin = &data_dest;
+printaddr:
+ a = (u_char *) &sin->sin_addr;
+ p = (u_char *) &sin->sin_port;
+#define UC(b) (((int) b) & 0xff)
+ printf(" (%d,%d,%d,%d,%d,%d)\r\n", UC(a[0]),
+ UC(a[1]), UC(a[2]), UC(a[3]), UC(p[0]), UC(p[1]));
+#undef UC
+ } else
+ printf(" No data connection\r\n");
+#endif
+ reply(211, "End of status");
+}
+
+void
+fatal(char *s)
+{
+
+ reply(451, "Error in server: %s\n", s);
+ reply(221, "Closing connection due to server error.");
+ dologout(0);
+ /* NOTREACHED */
+}
+
+static void
+int_reply(int, char *, const char *, va_list)
+#ifdef __GNUC__
+__attribute__ ((format (printf, 3, 0)))
+#endif
+;
+
+static void
+int_reply(int n, char *c, const char *fmt, va_list ap)
+{
+ char buf[10240];
+ char *p;
+ p=buf;
+ if(n){
+ snprintf(p, sizeof(buf), "%d%s", n, c);
+ p+=strlen(p);
+ }
+ vsnprintf(p, sizeof(buf) - strlen(p), fmt, ap);
+ p+=strlen(p);
+ snprintf(p, sizeof(buf) - strlen(p), "\r\n");
+ p+=strlen(p);
+ auth_printf("%s", buf);
+ fflush(stdout);
+ if (debug)
+ syslog(LOG_DEBUG, "<--- %s- ", buf);
+}
+
+void
+reply(int n, const char *fmt, ...)
+{
+ va_list ap;
+ va_start(ap, fmt);
+ int_reply(n, " ", fmt, ap);
+ delete_ftp_command();
+ va_end(ap);
+}
+
+void
+lreply(int n, const char *fmt, ...)
+{
+ va_list ap;
+ va_start(ap, fmt);
+ int_reply(n, "-", fmt, ap);
+ va_end(ap);
+}
+
+void
+nreply(const char *fmt, ...)
+{
+ va_list ap;
+ va_start(ap, fmt);
+ int_reply(0, NULL, fmt, ap);
+ va_end(ap);
+}
+
+static void
+ack(char *s)
+{
+
+ reply(250, "%s command successful.", s);
+}
+
+void
+nack(char *s)
+{
+
+ reply(502, "%s command not implemented.", s);
+}
+
+/* ARGSUSED */
+void
+yyerror(char *s)
+{
+ char *cp;
+
+ if ((cp = strchr(cbuf,'\n')))
+ *cp = '\0';
+ reply(500, "'%s': command not understood.", cbuf);
+}
+
+void
+do_delete(char *name)
+{
+ struct stat st;
+
+ LOGCMD("delete", name);
+ if (stat(name, &st) < 0) {
+ perror_reply(550, name);
+ return;
+ }
+ if ((st.st_mode&S_IFMT) == S_IFDIR) {
+ if (rmdir(name) < 0) {
+ perror_reply(550, name);
+ return;
+ }
+ goto done;
+ }
+ if (unlink(name) < 0) {
+ perror_reply(550, name);
+ return;
+ }
+done:
+ ack("DELE");
+}
+
+void
+cwd(char *path)
+{
+
+ if (chdir(path) < 0)
+ perror_reply(550, path);
+ else
+ ack("CWD");
+}
+
+void
+makedir(char *name)
+{
+
+ LOGCMD("mkdir", name);
+ if(guest && filename_check(name))
+ return;
+ if (mkdir(name, 0777) < 0)
+ perror_reply(550, name);
+ else{
+ if(guest)
+ chmod(name, 0700); /* guest has umask 777 */
+ reply(257, "MKD command successful.");
+ }
+}
+
+void
+removedir(char *name)
+{
+
+ LOGCMD("rmdir", name);
+ if (rmdir(name) < 0)
+ perror_reply(550, name);
+ else
+ ack("RMD");
+}
+
+void
+pwd(void)
+{
+ char path[MaxPathLen + 1];
+ char *ret;
+
+ /* SunOS has a broken getcwd that does popen(pwd) (!!!), this
+ * failes miserably when running chroot
+ */
+ ret = getcwd(path, sizeof(path));
+ if (ret == NULL)
+ reply(550, "%s.", strerror(errno));
+ else
+ reply(257, "\"%s\" is current directory.", path);
+}
+
+char *
+renamefrom(char *name)
+{
+ struct stat st;
+
+ if (stat(name, &st) < 0) {
+ perror_reply(550, name);
+ return NULL;
+ }
+ reply(350, "File exists, ready for destination name");
+ return (name);
+}
+
+void
+renamecmd(char *from, char *to)
+{
+
+ LOGCMD2("rename", from, to);
+ if(guest && filename_check(to))
+ return;
+ if (rename(from, to) < 0)
+ perror_reply(550, "rename");
+ else
+ ack("RNTO");
+}
+
+static void
+dolog(struct sockaddr_in *sin)
+{
+ inaddr2str (sin->sin_addr, remotehost, sizeof(remotehost));
+#ifdef HAVE_SETPROCTITLE
+ snprintf(proctitle, sizeof(proctitle), "%s: connected", remotehost);
+ setproctitle(proctitle);
+#endif /* HAVE_SETPROCTITLE */
+
+ if (logging)
+ syslog(LOG_INFO, "connection from %s(%s)",
+ remotehost,
+ inet_ntoa(his_addr.sin_addr));
+}
+
+/*
+ * Record logout in wtmp file
+ * and exit with supplied status.
+ */
+void
+dologout(int status)
+{
+ transflag = 0;
+ if (logged_in) {
+ seteuid((uid_t)0);
+ logwtmp(ttyline, "", "");
+ dest_tkt();
+ if(k_hasafs())
+ k_unlog();
+ }
+ /* beware of flushing buffers after a SIGPIPE */
+#ifdef XXX
+ exit(status);
+#else
+ _exit(status);
+#endif
+}
+
+void abor(void)
+{
+}
+
+static void
+myoob(int signo)
+{
+#if 0
+ char *cp;
+#endif
+
+ /* only process if transfer occurring */
+ if (!transflag)
+ return;
+
+ /* This is all XXX */
+ oobflag = 1;
+ /* if the command resulted in a new command,
+ parse that as well */
+ do{
+ yyparse();
+ } while(ftp_command);
+ oobflag = 0;
+
+#if 0
+ cp = tmpline;
+ if (getline(cp, 7) == NULL) {
+ reply(221, "You could at least say goodbye.");
+ dologout(0);
+ }
+ upper(cp);
+ if (strcmp(cp, "ABOR\r\n") == 0) {
+ tmpline[0] = '\0';
+ reply(426, "Transfer aborted. Data connection closed.");
+ reply(226, "Abort successful");
+ longjmp(urgcatch, 1);
+ }
+ if (strcmp(cp, "STAT\r\n") == 0) {
+ if (file_size != (off_t) -1)
+ reply(213, "Status: %ld of %ld bytes transferred",
+ (long)byte_count,
+ (long)file_size);
+ else
+ reply(213, "Status: %ld bytes transferred"
+ (long)byte_count);
+ }
+#endif
+}
+
+/*
+ * Note: a response of 425 is not mentioned as a possible response to
+ * the PASV command in RFC959. However, it has been blessed as
+ * a legitimate response by Jon Postel in a telephone conversation
+ * with Rick Adams on 25 Jan 89.
+ */
+void
+passive(void)
+{
+ int len;
+ char *p, *a;
+
+ pdata = socket(AF_INET, SOCK_STREAM, 0);
+ if (pdata < 0) {
+ perror_reply(425, "Can't open passive connection");
+ return;
+ }
+ pasv_addr = ctrl_addr;
+ pasv_addr.sin_port = 0;
+ seteuid((uid_t)0);
+ if (bind(pdata, (struct sockaddr *)&pasv_addr, sizeof(pasv_addr)) < 0) {
+ seteuid((uid_t)pw->pw_uid);
+ goto pasv_error;
+ }
+ seteuid((uid_t)pw->pw_uid);
+ len = sizeof(pasv_addr);
+ if (getsockname(pdata, (struct sockaddr *) &pasv_addr, &len) < 0)
+ goto pasv_error;
+ if (listen(pdata, 1) < 0)
+ goto pasv_error;
+ a = (char *) &pasv_addr.sin_addr;
+ p = (char *) &pasv_addr.sin_port;
+
+#define UC(b) (((int) b) & 0xff)
+
+ reply(227, "Entering Passive Mode (%d,%d,%d,%d,%d,%d)", UC(a[0]),
+ UC(a[1]), UC(a[2]), UC(a[3]), UC(p[0]), UC(p[1]));
+ return;
+
+pasv_error:
+ close(pdata);
+ pdata = -1;
+ perror_reply(425, "Can't open passive connection");
+ return;
+}
+
+/*
+ * Generate unique name for file with basename "local".
+ * The file named "local" is already known to exist.
+ * Generates failure reply on error.
+ */
+static char *
+gunique(char *local)
+{
+ static char new[MaxPathLen];
+ struct stat st;
+ int count;
+ char *cp;
+
+ cp = strrchr(local, '/');
+ if (cp)
+ *cp = '\0';
+ if (stat(cp ? local : ".", &st) < 0) {
+ perror_reply(553, cp ? local : ".");
+ return NULL;
+ }
+ if (cp)
+ *cp = '/';
+ for (count = 1; count < 100; count++) {
+ snprintf (new, sizeof(new), "%s.%d", local, count);
+ if (stat(new, &st) < 0)
+ return (new);
+ }
+ reply(452, "Unique file name cannot be created.");
+ return (NULL);
+}
+
+/*
+ * Format and send reply containing system error number.
+ */
+void
+perror_reply(int code, char *string)
+{
+ reply(code, "%s: %s.", string, strerror(errno));
+}
+
+static char *onefile[] = {
+ "",
+ 0
+};
+
+void
+send_file_list(char *whichf)
+{
+ struct stat st;
+ DIR *dirp = NULL;
+ struct dirent *dir;
+ FILE *dout = NULL;
+ char **dirlist, *dirname;
+ int simple = 0;
+ int freeglob = 0;
+ glob_t gl;
+ char buf[MaxPathLen];
+
+ if (strpbrk(whichf, "~{[*?") != NULL) {
+ int flags = GLOB_BRACE|GLOB_NOCHECK|GLOB_QUOTE|GLOB_TILDE;
+
+ memset(&gl, 0, sizeof(gl));
+ freeglob = 1;
+ if (glob(whichf, flags, 0, &gl)) {
+ reply(550, "not found");
+ goto out;
+ } else if (gl.gl_pathc == 0) {
+ errno = ENOENT;
+ perror_reply(550, whichf);
+ goto out;
+ }
+ dirlist = gl.gl_pathv;
+ } else {
+ onefile[0] = whichf;
+ dirlist = onefile;
+ simple = 1;
+ }
+
+ if (setjmp(urgcatch)) {
+ transflag = 0;
+ goto out;
+ }
+ while ((dirname = *dirlist++)) {
+ if (stat(dirname, &st) < 0) {
+ /*
+ * If user typed "ls -l", etc, and the client
+ * used NLST, do what the user meant.
+ */
+ if (dirname[0] == '-' && *dirlist == NULL &&
+ transflag == 0) {
+ retrieve("/bin/ls %s", dirname);
+ goto out;
+ }
+ perror_reply(550, whichf);
+ if (dout != NULL) {
+ fclose(dout);
+ transflag = 0;
+ data = -1;
+ pdata = -1;
+ }
+ goto out;
+ }
+
+ if (S_ISREG(st.st_mode)) {
+ if (dout == NULL) {
+ dout = dataconn("file list", (off_t)-1, "w");
+ if (dout == NULL)
+ goto out;
+ transflag++;
+ }
+ snprintf(buf, sizeof(buf), "%s%s\n", dirname,
+ type == TYPE_A ? "\r" : "");
+ auth_write(fileno(dout), buf, strlen(buf));
+ byte_count += strlen(dirname) + 1;
+ continue;
+ } else if (!S_ISDIR(st.st_mode))
+ continue;
+
+ if ((dirp = opendir(dirname)) == NULL)
+ continue;
+
+ while ((dir = readdir(dirp)) != NULL) {
+ char nbuf[MaxPathLen];
+
+ if (!strcmp(dir->d_name, "."))
+ continue;
+ if (!strcmp(dir->d_name, ".."))
+ continue;
+
+ snprintf(nbuf, sizeof(nbuf), "%s/%s", dirname, dir->d_name);
+
+ /*
+ * We have to do a stat to insure it's
+ * not a directory or special file.
+ */
+ if (simple || (stat(nbuf, &st) == 0 &&
+ S_ISREG(st.st_mode))) {
+ if (dout == NULL) {
+ dout = dataconn("file list", (off_t)-1, "w");
+ if (dout == NULL)
+ goto out;
+ transflag++;
+ }
+ if(strncmp(nbuf, "./", 2) == 0)
+ snprintf(buf, sizeof(buf), "%s%s\n", nbuf +2,
+ type == TYPE_A ? "\r" : "");
+ else
+ snprintf(buf, sizeof(buf), "%s%s\n", nbuf,
+ type == TYPE_A ? "\r" : "");
+ auth_write(fileno(dout), buf, strlen(buf));
+ byte_count += strlen(nbuf) + 1;
+ }
+ }
+ closedir(dirp);
+ }
+ if (dout == NULL)
+ reply(550, "No files found.");
+ else if (ferror(dout) != 0)
+ perror_reply(550, "Data connection");
+ else
+ reply(226, "Transfer complete.");
+
+ transflag = 0;
+ if (dout != NULL){
+ auth_write(fileno(dout), buf, 0); /* XXX flush */
+
+ fclose(dout);
+ }
+ data = -1;
+ pdata = -1;
+out:
+ if (freeglob) {
+ freeglob = 0;
+ globfree(&gl);
+ }
+}
+
+
+int
+find(char *pattern)
+{
+ char line[1024];
+ FILE *f;
+
+ snprintf(line, sizeof(line),
+ "/bin/locate -d %s %s",
+ ftp_rooted("/etc/locatedb"),
+ pattern);
+ f = ftpd_popen(line, "r", 1, 1);
+ if(f == NULL){
+ perror_reply(550, "/bin/locate");
+ return 1;
+ }
+ lreply(200, "Output from find.");
+ while(fgets(line, sizeof(line), f)){
+ if(line[strlen(line)-1] == '\n')
+ line[strlen(line)-1] = 0;
+ nreply("%s", line);
+ }
+ reply(200, "Done");
+ ftpd_pclose(f);
+ return 0;
+}
+
diff --git a/crypto/kerberosIV/appl/ftp/ftpd/kauth.c b/crypto/kerberosIV/appl/ftp/ftpd/kauth.c
new file mode 100644
index 0000000..02d23d6
--- /dev/null
+++ b/crypto/kerberosIV/appl/ftp/ftpd/kauth.c
@@ -0,0 +1,325 @@
+/*
+ * Copyright (c) 1995, 1996, 1997 Kungliga Tekniska Högskolan
+ * (Royal Institute of Technology, Stockholm, Sweden).
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the Kungliga Tekniska
+ * Högskolan and its contributors.
+ *
+ * 4. Neither the name of the Institute nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+RCSID("$Id: kauth.c,v 1.14 1997/05/07 02:21:30 assar Exp $");
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <time.h>
+#ifdef HAVE_SYS_TIME_H
+#include <sys/time.h>
+#endif
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+
+#include <roken.h>
+
+#include <des.h>
+#include <krb.h>
+#include <kafs.h>
+
+#include "extern.h"
+#include "krb4.h"
+#include "auth.h"
+#include "base64.h"
+
+static KTEXT_ST cip;
+static unsigned int lifetime;
+static time_t local_time;
+
+static krb_principal pr;
+
+static int
+save_tkt(char *user, char *instance, char *realm, void *arg,
+ int (*key_proc)(char*, char*, char*, void*, des_cblock*), KTEXT *cipp)
+{
+ local_time = time(0);
+ memmove(&cip, *cipp, sizeof(cip));
+ return -1;
+}
+
+static int
+store_ticket(KTEXT cip)
+{
+ char *ptr;
+ des_cblock session;
+ krb_principal sp;
+ unsigned char kvno;
+ KTEXT_ST tkt;
+ int left = cip->length;
+
+ int kerror;
+
+ time_t kdc_time;
+
+ ptr = (char *) cip->dat;
+
+ /* extract session key */
+ memmove(session, ptr, 8);
+ ptr += 8;
+ left -= 8;
+
+ if (strnlen(ptr, left) == left)
+ return(INTK_BADPW);
+
+ /* extract server's name */
+ strcpy(sp.name, ptr);
+ ptr += strlen(sp.name) + 1;
+ left -= strlen(sp.name) + 1;
+
+ if (strnlen(ptr, left) == left)
+ return(INTK_BADPW);
+
+ /* extract server's instance */
+ strcpy(sp.instance, ptr);
+ ptr += strlen(sp.instance) + 1;
+ left -= strlen(sp.instance) + 1;
+
+ if (strnlen(ptr, left) == left)
+ return(INTK_BADPW);
+
+ /* extract server's realm */
+ strcpy(sp.realm,ptr);
+ ptr += strlen(sp.realm) + 1;
+ left -= strlen(sp.realm) + 1;
+
+ if(left < 3)
+ return INTK_BADPW;
+ /* extract ticket lifetime, server key version, ticket length */
+ /* be sure to avoid sign extension on lifetime! */
+ lifetime = (unsigned char) ptr[0];
+ kvno = (unsigned char) ptr[1];
+ tkt.length = (unsigned char) ptr[2];
+ ptr += 3;
+ left -= 3;
+
+ if (tkt.length > left)
+ return(INTK_BADPW);
+
+ /* extract ticket itself */
+ memmove(tkt.dat, ptr, tkt.length);
+ ptr += tkt.length;
+ left -= tkt.length;
+
+ /* Here is where the time should be verified against the KDC.
+ * Unfortunately everything is sent in host byte order (receiver
+ * makes wrong) , and at this stage there is no way for us to know
+ * which byteorder the KDC has. So we simply ignore the time,
+ * there are no security risks with this, the only thing that can
+ * happen is that we might receive a replayed ticket, which could
+ * at most be useless.
+ */
+
+#if 0
+ /* check KDC time stamp */
+ memmove(&kdc_time, ptr, sizeof(kdc_time));
+ if (swap_bytes) swap_u_long(kdc_time);
+
+ ptr += 4;
+
+ if (abs((int)(local_time - kdc_time)) > CLOCK_SKEW) {
+ return(RD_AP_TIME); /* XXX should probably be better
+ code */
+ }
+#endif
+
+ /* initialize ticket cache */
+
+ if (tf_create(TKT_FILE) != KSUCCESS)
+ return(INTK_ERR);
+
+ if (tf_put_pname(pr.name) != KSUCCESS ||
+ tf_put_pinst(pr.instance) != KSUCCESS) {
+ tf_close();
+ return(INTK_ERR);
+ }
+
+
+ kerror = tf_save_cred(sp.name, sp.instance, sp.realm, session,
+ lifetime, kvno, &tkt, local_time);
+ tf_close();
+
+ return(kerror);
+}
+
+void kauth(char *principal, char *ticket)
+{
+ char *p;
+ int ret;
+
+ ret = krb_parse_name(principal, &pr);
+ if(ret){
+ reply(500, "Bad principal: %s.", krb_get_err_text(ret));
+ return;
+ }
+ if(pr.realm[0] == 0)
+ krb_get_lrealm(pr.realm, 1);
+
+ if(ticket){
+ cip.length = base64_decode(ticket, &cip.dat);
+ if(cip.length == -1){
+ reply(500, "Failed to decode data.");
+ return;
+ }
+ ret = store_ticket(&cip);
+ if(ret){
+ reply(500, "Kerberos error: %s.", krb_get_err_text(ret));
+ memset(&cip, 0, sizeof(cip));
+ return;
+ }
+ if(k_hasafs())
+ k_afsklog(0, 0);
+ reply(200, "Tickets will be destroyed on exit.");
+ return;
+ }
+
+ ret = krb_get_in_tkt (pr.name,
+ pr.instance,
+ pr.realm,
+ KRB_TICKET_GRANTING_TICKET,
+ pr.realm,
+ DEFAULT_TKT_LIFE,
+ NULL, save_tkt, NULL);
+ if(ret != INTK_BADPW){
+ reply(500, "Kerberos error: %s.", krb_get_err_text(ret));
+ return;
+ }
+ base64_encode(cip.dat, cip.length, &p);
+ reply(300, "P=%s T=%s", krb_unparse_name(&pr), p);
+ free(p);
+ memset(&cip, 0, sizeof(cip));
+}
+
+
+static char *
+short_date(int32_t dp)
+{
+ char *cp;
+ time_t t = (time_t)dp;
+
+ if (t == (time_t)(-1L)) return "*** Never *** ";
+ cp = ctime(&t) + 4;
+ cp[15] = '\0';
+ return (cp);
+}
+
+void klist(void)
+{
+ int err;
+
+ char *file = tkt_string();
+
+ krb_principal pr;
+
+ char buf1[128], buf2[128];
+ int header = 1;
+ CREDENTIALS c;
+
+
+
+ err = tf_init(file, R_TKT_FIL);
+ if(err != KSUCCESS){
+ reply(500, "%s", krb_get_err_text(err));
+ return;
+ }
+ tf_close();
+
+ /*
+ * We must find the realm of the ticket file here before calling
+ * tf_init because since the realm of the ticket file is not
+ * really stored in the principal section of the file, the
+ * routine we use must itself call tf_init and tf_close.
+ */
+ err = krb_get_tf_realm(file, pr.realm);
+ if(err != KSUCCESS){
+ reply(500, "%s", krb_get_err_text(err));
+ return;
+ }
+
+ err = tf_init(file, R_TKT_FIL);
+ if(err != KSUCCESS){
+ reply(500, "%s", krb_get_err_text(err));
+ return;
+ }
+
+ err = tf_get_pname(pr.name);
+ if(err != KSUCCESS){
+ reply(500, "%s", krb_get_err_text(err));
+ return;
+ }
+ err = tf_get_pinst(pr.instance);
+ if(err != KSUCCESS){
+ reply(500, "%s", krb_get_err_text(err));
+ return;
+ }
+
+ /*
+ * You may think that this is the obvious place to get the
+ * realm of the ticket file, but it can't be done here as the
+ * routine to do this must open the ticket file. This is why
+ * it was done before tf_init.
+ */
+
+ lreply(200, "Principal: %s", krb_unparse_name(&pr));
+ while ((err = tf_get_cred(&c)) == KSUCCESS) {
+ if (header) {
+ lreply(200, "%-15s %-15s %s",
+ " Issued", " Expires", " Principal (kvno)");
+ header = 0;
+ }
+ strcpy(buf1, short_date(c.issue_date));
+ c.issue_date = krb_life_to_time(c.issue_date, c.lifetime);
+ if (time(0) < (unsigned long) c.issue_date)
+ strcpy(buf2, short_date(c.issue_date));
+ else
+ strcpy(buf2, ">>> Expired <<< ");
+ lreply(200, "%s %s %s (%d)", buf1, buf2,
+ krb_unparse_name_long(c.service, c.instance, c.realm), c.kvno);
+ }
+ if (header && err == EOF) {
+ lreply(200, "No tickets in file.");
+ }
+ reply(200, "");
+}
diff --git a/crypto/kerberosIV/appl/ftp/ftpd/krb4.c b/crypto/kerberosIV/appl/ftp/ftpd/krb4.c
new file mode 100644
index 0000000..2457c61
--- /dev/null
+++ b/crypto/kerberosIV/appl/ftp/ftpd/krb4.c
@@ -0,0 +1,372 @@
+/*
+ * Copyright (c) 1995, 1996, 1997 Kungliga Tekniska Högskolan
+ * (Royal Institute of Technology, Stockholm, Sweden).
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the Kungliga Tekniska
+ * Högskolan and its contributors.
+ *
+ * 4. Neither the name of the Institute nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+RCSID("$Id: krb4.c,v 1.19 1997/05/11 09:00:07 assar Exp $");
+#endif
+
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_SYS_PARAM_H
+#include <sys/param.h>
+#endif
+#ifdef HAVE_NETINET_IN_h
+#include <netinet/in.h>
+#endif
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <krb.h>
+
+#include "base64.h"
+#include "extern.h"
+#include "auth.h"
+#include "krb4.h"
+
+#include <roken.h>
+
+static AUTH_DAT auth_dat;
+static des_key_schedule schedule;
+
+int krb4_auth(char *auth)
+{
+ auth_complete = 0;
+ reply(334, "Using authentication type %s; ADAT must follow", auth);
+ return 0;
+}
+
+int krb4_adat(char *auth)
+{
+ KTEXT_ST tkt;
+ char *p;
+ int kerror;
+ u_int32_t cs;
+ char msg[35]; /* size of encrypted block */
+ int len;
+
+ char inst[INST_SZ];
+
+ memset(&tkt, 0, sizeof(tkt));
+ len = base64_decode(auth, tkt.dat);
+
+ if(len < 0){
+ reply(501, "Failed to decode base64 data.");
+ return -1;
+ }
+ tkt.length = len;
+
+ k_getsockinst(0, inst, sizeof(inst));
+ kerror = krb_rd_req(&tkt, "ftp", inst, 0, &auth_dat, "");
+ if(kerror == RD_AP_UNDEC){
+ k_getsockinst(0, inst, sizeof(inst));
+ kerror = krb_rd_req(&tkt, "rcmd", inst, 0, &auth_dat, "");
+ }
+
+ if(kerror){
+ reply(535, "Error reading request: %s.", krb_get_err_text(kerror));
+ return -1;
+ }
+
+ des_set_key(&auth_dat.session, schedule);
+
+ cs = auth_dat.checksum + 1;
+ {
+ unsigned char tmp[4];
+ tmp[0] = (cs >> 24) & 0xff;
+ tmp[1] = (cs >> 16) & 0xff;
+ tmp[2] = (cs >> 8) & 0xff;
+ tmp[3] = cs & 0xff;
+ len = krb_mk_safe(tmp, msg, 4, &auth_dat.session,
+ &ctrl_addr, &his_addr);
+ }
+ if(len < 0){
+ reply(535, "Error creating reply: %s.", strerror(errno));
+ return -1;
+ }
+ base64_encode(msg, len, &p);
+ reply(235, "ADAT=%s", p);
+ auth_complete = 1;
+ free(p);
+ return 0;
+}
+
+int krb4_pbsz(int size)
+{
+ if(size > 1048576) /* XXX arbitrary number */
+ size = 1048576;
+ buffer_size = size;
+ reply(200, "OK PBSZ=%d", buffer_size);
+ return 0;
+}
+
+int krb4_prot(int level)
+{
+ if(level == prot_confidential)
+ return -1;
+ return 0;
+}
+
+int krb4_ccc(void)
+{
+ reply(534, "Don't event think about it.");
+ return -1;
+}
+
+int krb4_mic(char *msg)
+{
+ int len;
+ int kerror;
+ MSG_DAT m_data;
+ char *tmp, *cmd;
+
+ cmd = strdup(msg);
+
+ len = base64_decode(msg, cmd);
+ if(len < 0){
+ reply(501, "Failed to decode base 64 data.");
+ free(cmd);
+ return -1;
+ }
+ kerror = krb_rd_safe(cmd, len, &auth_dat.session,
+ &his_addr, &ctrl_addr, &m_data);
+
+ if(kerror){
+ reply(535, "Error reading request: %s.", krb_get_err_text(kerror));
+ free(cmd);
+ return -1;
+ }
+
+ tmp = malloc(strlen(msg) + 1);
+ snprintf(tmp, strlen(msg) + 1, "%.*s", (int)m_data.app_length, m_data.app_data);
+ if(!strstr(tmp, "\r\n"))
+ strcat(tmp, "\r\n");
+ new_ftp_command(tmp);
+ free(cmd);
+ return 0;
+}
+
+int krb4_conf(char *msg)
+{
+ prot_level = prot_safe;
+
+ reply(537, "Protection level not supported.");
+ return -1;
+}
+
+int krb4_enc(char *msg)
+{
+ int len;
+ int kerror;
+ MSG_DAT m_data;
+ char *tmp, *cmd;
+
+ cmd = strdup(msg);
+
+ len = base64_decode(msg, cmd);
+ if(len < 0){
+ reply(501, "Failed to decode base 64 data.");
+ free(cmd);
+ return -1;
+ }
+ kerror = krb_rd_priv(cmd, len, schedule, &auth_dat.session,
+ &his_addr, &ctrl_addr, &m_data);
+
+ if(kerror){
+ reply(535, "Error reading request: %s.", krb_get_err_text(kerror));
+ free(cmd);
+ return -1;
+ }
+
+ tmp = strdup(msg);
+ snprintf(tmp, strlen(msg) + 1, "%.*s", (int)m_data.app_length, m_data.app_data);
+ if(!strstr(tmp, "\r\n"))
+ strcat(tmp, "\r\n");
+ new_ftp_command(tmp);
+ free(cmd);
+ return 0;
+}
+
+int krb4_read(int fd, void *data, int length)
+{
+ static int left;
+ static char *extra;
+ static int eof;
+ int len, bytes, tx = 0;
+
+ MSG_DAT m_data;
+ int kerror;
+
+ if(eof){ /* if we haven't reported an end-of-file, do so */
+ eof = 0;
+ return 0;
+ }
+
+ if(left){
+ if(length > left)
+ bytes = left;
+ else
+ bytes = length;
+ memmove(data, extra, bytes);
+ left -= bytes;
+ if(left)
+ memmove(extra, extra + bytes, left);
+ else
+ free(extra);
+ length -= bytes;
+ tx += bytes;
+ }
+
+ while(length){
+ unsigned char tmp[4];
+ if(krb_net_read(fd, tmp, 4) < 4){
+ reply(400, "Unexpected end of file.\n");
+ return -1;
+ }
+ len = (tmp[0] << 24) | (tmp[1] << 16) | (tmp[2] << 8) | tmp[3];
+ krb_net_read(fd, data_buffer, len);
+ if(data_protection == prot_safe)
+ kerror = krb_rd_safe(data_buffer, len, &auth_dat.session,
+ &his_addr, &ctrl_addr, &m_data);
+ else
+ kerror = krb_rd_priv(data_buffer, len, schedule, &auth_dat.session,
+ &his_addr, &ctrl_addr, &m_data);
+
+ if(kerror){
+ reply(400, "Failed to read data: %s.", krb_get_err_text(kerror));
+ return -1;
+ }
+
+ bytes = m_data.app_length;
+ if(bytes == 0){
+ if(tx) eof = 1;
+ return tx;
+ }
+ if(bytes > length){
+ left = bytes - length;
+ bytes = length;
+ extra = malloc(left);
+ memmove(extra, m_data.app_data + bytes, left);
+ }
+ memmove((unsigned char*)data + tx, m_data.app_data, bytes);
+ tx += bytes;
+ length -= bytes;
+ }
+ return tx;
+}
+
+int krb4_write(int fd, void *data, int length)
+{
+ int len, bytes, tx = 0;
+
+ len = buffer_size;
+ if(data_protection == prot_safe)
+ len -= 31; /* always 31 bytes overhead */
+ else
+ len -= 26; /* at most 26 bytes */
+
+ do{
+ if(length < len)
+ len = length;
+ if(data_protection == prot_safe)
+ bytes = krb_mk_safe(data, data_buffer+4, len, &auth_dat.session,
+ &ctrl_addr, &his_addr);
+ else
+ bytes = krb_mk_priv(data, data_buffer+4, len, schedule,
+ &auth_dat.session,
+ &ctrl_addr, &his_addr);
+ if(bytes == -1){
+ reply(535, "Failed to make packet: %s.", strerror(errno));
+ return -1;
+ }
+ data_buffer[0] = (bytes >> 24) & 0xff;
+ data_buffer[1] = (bytes >> 16) & 0xff;
+ data_buffer[2] = (bytes >> 8) & 0xff;
+ data_buffer[3] = bytes & 0xff;
+ if(krb_net_write(fd, data_buffer, bytes+4) < 0)
+ return -1;
+ length -= len;
+ data = (unsigned char*)data + len;
+ tx += len;
+ }while(length);
+ return tx;
+}
+
+int krb4_userok(char *name)
+{
+ if(!kuserok(&auth_dat, name)){
+ do_login(232, name);
+ }else{
+ reply(530, "User %s access denied.", name);
+ }
+ return 0;
+}
+
+
+int
+krb4_vprintf(const char *fmt, va_list ap)
+{
+ char buf[10240];
+ char *p;
+ char *enc;
+ int code;
+ int len;
+
+ vsnprintf (buf, sizeof(buf), fmt, ap);
+ enc = malloc(strlen(buf) + 31);
+ if(prot_level == prot_safe){
+ len = krb_mk_safe((u_char*)buf, (u_char*)enc, strlen(buf), &auth_dat.session,
+ &ctrl_addr, &his_addr);
+ code = 631;
+ }else if(prot_level == prot_private){
+ len = krb_mk_priv((u_char*)buf, (u_char*)enc, strlen(buf), schedule,
+ &auth_dat.session, &ctrl_addr, &his_addr);
+ code = 632;
+ }else{
+ len = 0; /* XXX */
+ code = 631;
+ }
+ base64_encode(enc, len, &p);
+ fprintf(stdout, "%d %s\r\n", code, p);
+ free(enc);
+ free(p);
+ return 0;
+}
diff --git a/crypto/kerberosIV/appl/ftp/ftpd/krb4.h b/crypto/kerberosIV/appl/ftp/ftpd/krb4.h
new file mode 100644
index 0000000..f777dbd
--- /dev/null
+++ b/crypto/kerberosIV/appl/ftp/ftpd/krb4.h
@@ -0,0 +1,61 @@
+/*
+ * Copyright (c) 1995, 1996, 1997 Kungliga Tekniska Högskolan
+ * (Royal Institute of Technology, Stockholm, Sweden).
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the Kungliga Tekniska
+ * Högskolan and its contributors.
+ *
+ * 4. Neither the name of the Institute nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/* $Id: krb4.h,v 1.6 1997/04/01 08:17:29 joda Exp $ */
+
+#ifndef __KRB4_H__
+#define __KRB4_H__
+
+#include <stdarg.h>
+
+int krb4_auth(char *auth);
+int krb4_adat(char *auth);
+int krb4_pbsz(int size);
+int krb4_prot(int level);
+int krb4_ccc(void);
+int krb4_mic(char *msg);
+int krb4_conf(char *msg);
+int krb4_enc(char *msg);
+
+int krb4_read(int fd, void *data, int length);
+int krb4_write(int fd, void *data, int length);
+
+int krb4_userok(char *name);
+int krb4_vprintf(const char *fmt, va_list ap);
+
+#endif /* __KRB4_H__ */
diff --git a/crypto/kerberosIV/appl/ftp/ftpd/logwtmp.c b/crypto/kerberosIV/appl/ftp/ftpd/logwtmp.c
new file mode 100644
index 0000000..95ab216
--- /dev/null
+++ b/crypto/kerberosIV/appl/ftp/ftpd/logwtmp.c
@@ -0,0 +1,136 @@
+/*
+ * Copyright (c) 1995, 1996, 1997 Kungliga Tekniska Högskolan
+ * (Royal Institute of Technology, Stockholm, Sweden).
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the Kungliga Tekniska
+ * Högskolan and its contributors.
+ *
+ * 4. Neither the name of the Institute nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+RCSID("$Id: logwtmp.c,v 1.10 1997/05/25 15:17:56 assar Exp $");
+#endif
+
+#include <stdio.h>
+#include <string.h>
+#ifdef TIME_WITH_SYS_TIME
+#include <sys/time.h>
+#include <time.h>
+#elif defined(HAVE_SYS_TIME_H)
+#include <sys/time.h>
+#else
+#include <time.h>
+#endif
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+#ifdef HAVE_FCNTL_H
+#include <fcntl.h>
+#endif
+#ifdef HAVE_UTMP_H
+#include <utmp.h>
+#endif
+#ifdef HAVE_UTMPX_H
+#include <utmpx.h>
+#endif
+#include "extern.h"
+
+#ifndef WTMP_FILE
+#ifdef _PATH_WTMP
+#define WTMP_FILE _PATH_WTMP
+#else
+#define WTMP_FILE "/var/adm/wtmp"
+#endif
+#endif
+
+void
+logwtmp(char *line, char *name, char *host)
+{
+ static int init = 0;
+ static int fd, fdx;
+ struct timeval tv;
+ struct utmp ut;
+#ifdef WTMPX_FILE
+ struct utmpx utx;
+#endif
+
+ memset(&ut, 0, sizeof(struct utmp));
+#ifdef HAVE_UT_TYPE
+ if(name[0])
+ ut.ut_type = USER_PROCESS;
+ else
+ ut.ut_type = DEAD_PROCESS;
+#endif
+ strncpy(ut.ut_line, line, sizeof(ut.ut_line));
+ strncpy(ut.ut_name, name, sizeof(ut.ut_name));
+#ifdef HAVE_UT_PID
+ ut.ut_pid = getpid();
+#endif
+#ifdef HAVE_UT_HOST
+ strncpy(ut.ut_host, host, sizeof(ut.ut_host));
+#endif
+ ut.ut_time = time(NULL);
+
+#ifdef WTMPX_FILE
+ strncpy(utx.ut_line, line, sizeof(utx.ut_line));
+ strncpy(utx.ut_user, name, sizeof(utx.ut_user));
+ strncpy(utx.ut_host, host, sizeof(utx.ut_host));
+#ifdef HAVE_UT_SYSLEN
+ utx.ut_syslen = strlen(host) + 1;
+ if (utx.ut_syslen > sizeof(utx.ut_host))
+ utx.ut_syslen = sizeof(utx.ut_host);
+#endif
+ gettimeofday (&tv, 0);
+ utx.ut_tv.tv_sec = tv.tv_sec;
+ utx.ut_tv.tv_usec = tv.tv_usec;
+
+ if(name[0])
+ utx.ut_type = USER_PROCESS;
+ else
+ utx.ut_type = DEAD_PROCESS;
+#endif
+
+ if(!init){
+ fd = open(WTMP_FILE, O_WRONLY|O_APPEND, 0);
+#ifdef WTMPX_FILE
+ fdx = open(WTMPX_FILE, O_WRONLY|O_APPEND, 0);
+#endif
+ init = 1;
+ }
+ if(fd >= 0) {
+ write(fd, &ut, sizeof(struct utmp)); /* XXX */
+#ifdef WTMPX_FILE
+ write(fdx, &utx, sizeof(struct utmpx));
+#endif
+ }
+}
diff --git a/crypto/kerberosIV/appl/ftp/ftpd/pathnames.h b/crypto/kerberosIV/appl/ftp/ftpd/pathnames.h
new file mode 100644
index 0000000..1bd2be1
--- /dev/null
+++ b/crypto/kerberosIV/appl/ftp/ftpd/pathnames.h
@@ -0,0 +1,55 @@
+/*
+ * Copyright (c) 1989, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * @(#)pathnames.h 8.1 (Berkeley) 6/4/93
+ */
+
+#ifdef HAVE_PATHS_H
+#include <paths.h>
+#endif
+
+#ifndef _PATH_DEVNULL
+#define _PATH_DEVNULL "/dev/null"
+#endif
+
+#ifndef _PATH_NOLOGIN
+#define _PATH_NOLOGIN "/etc/nologin"
+#endif
+
+#ifndef _PATH_BSHELL
+#define _PATH_BSHELL "/bin/sh"
+#endif
+
+#define _PATH_FTPUSERS "/etc/ftpusers"
+#define _PATH_FTPCHROOT "/etc/ftpchroot"
+#define _PATH_FTPWELCOME "/etc/ftpwelcome"
+#define _PATH_FTPLOGINMESG "/etc/motd"
diff --git a/crypto/kerberosIV/appl/ftp/ftpd/popen.c b/crypto/kerberosIV/appl/ftp/ftpd/popen.c
new file mode 100644
index 0000000..58c4985
--- /dev/null
+++ b/crypto/kerberosIV/appl/ftp/ftpd/popen.c
@@ -0,0 +1,224 @@
+/*
+ * Copyright (c) 1988, 1993, 1994
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software written by Ken Arnold and
+ * published in UNIX Review, Vol. 6, No. 8.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+RCSID("$Id: popen.c,v 1.16 1997/06/01 03:14:06 assar Exp $");
+#endif
+
+#include <sys/types.h>
+#ifdef TIME_WITH_SYS_TIME
+#include <sys/time.h>
+#include <time.h>
+#elif defined(HAVE_SYS_TIME_H)
+#include <sys/time.h>
+#else
+#include <time.h>
+#endif
+#ifdef HAVE_SYS_RESOURCE_H
+#include <sys/resource.h>
+#endif
+#include <sys/wait.h>
+
+#include <errno.h>
+#include <glob.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "extern.h"
+
+#include <roken.h>
+
+/*
+ * Special version of popen which avoids call to shell. This ensures
+ * no one may create a pipe to a hidden program as a side effect of a
+ * list or dir command.
+ */
+static int *pids;
+static int fds;
+
+extern int dochroot;
+
+/* return path prepended with ~ftp if that file exists, otherwise
+ * return path unchanged
+ */
+
+const char *
+ftp_rooted(const char *path)
+{
+ static char home[MaxPathLen] = "";
+ static char newpath[MaxPathLen];
+ struct passwd *pwd;
+
+ if(!home[0])
+ if((pwd = k_getpwnam("ftp")))
+ strcpy(home, pwd->pw_dir);
+ snprintf(newpath, sizeof(newpath), "%s/%s", home, path);
+ if(access(newpath, X_OK))
+ strcpy(newpath, path);
+ return newpath;
+}
+
+
+FILE *
+ftpd_popen(char *program, char *type, int do_stderr, int no_glob)
+{
+ char *cp;
+ FILE *iop;
+ int argc, gargc, pdes[2], pid;
+ char **pop, *argv[100], *gargv[1000];
+ char *foo;
+
+ if (strcmp(type, "r") && strcmp(type, "w"))
+ return (NULL);
+
+ if (!pids) {
+
+ /* This function is ugly and should be rewritten, in
+ * modern unices there is no such thing as a maximum
+ * filedescriptor.
+ */
+
+ fds = getdtablesize();
+ pids = (int*)calloc(fds, sizeof(int));
+ if(!pids)
+ return NULL;
+ }
+ if (pipe(pdes) < 0)
+ return (NULL);
+
+ /* break up string into pieces */
+ for (argc = 0, cp = program;; cp = NULL) {
+ foo = NULL;
+ if (!(argv[argc++] = strtok_r(cp, " \t\n", &foo)))
+ break;
+ }
+
+ gargv[0] = (char*)ftp_rooted(argv[0]);
+ /* glob each piece */
+ for (gargc = argc = 1; argv[argc]; argc++) {
+ glob_t gl;
+ int flags = GLOB_BRACE|GLOB_NOCHECK|GLOB_QUOTE|GLOB_TILDE;
+
+ memset(&gl, 0, sizeof(gl));
+ if (no_glob || glob(argv[argc], flags, NULL, &gl))
+ gargv[gargc++] = strdup(argv[argc]);
+ else
+ for (pop = gl.gl_pathv; *pop; pop++)
+ gargv[gargc++] = strdup(*pop);
+ globfree(&gl);
+ }
+ gargv[gargc] = NULL;
+
+ iop = NULL;
+ switch(pid = fork()) {
+ case -1: /* error */
+ close(pdes[0]);
+ close(pdes[1]);
+ goto pfree;
+ /* NOTREACHED */
+ case 0: /* child */
+ if (*type == 'r') {
+ if (pdes[1] != STDOUT_FILENO) {
+ dup2(pdes[1], STDOUT_FILENO);
+ close(pdes[1]);
+ }
+ if(do_stderr)
+ dup2(STDOUT_FILENO, STDERR_FILENO);
+ close(pdes[0]);
+ } else {
+ if (pdes[0] != STDIN_FILENO) {
+ dup2(pdes[0], STDIN_FILENO);
+ close(pdes[0]);
+ }
+ close(pdes[1]);
+ }
+ execv(gargv[0], gargv);
+ gargv[0] = argv[0];
+ execv(gargv[0], gargv);
+ _exit(1);
+ }
+ /* parent; assume fdopen can't fail... */
+ if (*type == 'r') {
+ iop = fdopen(pdes[0], type);
+ close(pdes[1]);
+ } else {
+ iop = fdopen(pdes[1], type);
+ close(pdes[0]);
+ }
+ pids[fileno(iop)] = pid;
+
+pfree:
+ for (argc = 1; gargv[argc] != NULL; argc++)
+ free(gargv[argc]);
+
+
+ return (iop);
+}
+
+int
+ftpd_pclose(FILE *iop)
+{
+ int fdes, status;
+ pid_t pid;
+ sigset_t sigset, osigset;
+
+ /*
+ * pclose returns -1 if stream is not associated with a
+ * `popened' command, or, if already `pclosed'.
+ */
+ if (pids == 0 || pids[fdes = fileno(iop)] == 0)
+ return (-1);
+ fclose(iop);
+ sigemptyset(&sigset);
+ sigaddset(&sigset, SIGINT);
+ sigaddset(&sigset, SIGQUIT);
+ sigaddset(&sigset, SIGHUP);
+ sigprocmask(SIG_BLOCK, &sigset, &osigset);
+ while ((pid = waitpid(pids[fdes], &status, 0)) < 0 && errno == EINTR)
+ continue;
+ sigprocmask(SIG_SETMASK, &osigset, NULL);
+ pids[fdes] = 0;
+ if (pid < 0)
+ return (pid);
+ if (WIFEXITED(status))
+ return (WEXITSTATUS(status));
+ return (1);
+}
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