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-rw-r--r--usr.bin/ftp/ftp.c1965
1 files changed, 0 insertions, 1965 deletions
diff --git a/usr.bin/ftp/ftp.c b/usr.bin/ftp/ftp.c
deleted file mode 100644
index fc4f0b2..0000000
--- a/usr.bin/ftp/ftp.c
+++ /dev/null
@@ -1,1965 +0,0 @@
-/* $NetBSD: ftp.c,v 1.29.2.1 1997/11/18 01:01:04 mellon Exp $ */
-
-/*
- * Copyright (c) 1985, 1989, 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.
- */
-
-#include <sys/cdefs.h>
-#ifndef lint
-#if 0
-static char sccsid[] = "@(#)ftp.c 8.6 (Berkeley) 10/27/94";
-#else
-__RCSID("$FreeBSD$");
-__RCSID_SOURCE("$NetBSD: ftp.c,v 1.29.2.1 1997/11/18 01:01:04 mellon Exp $");
-#endif
-#endif /* not lint */
-
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <sys/socket.h>
-#include <sys/time.h>
-
-#include <netinet/in.h>
-#include <netinet/in_systm.h>
-#include <netinet/ip.h>
-#include <arpa/inet.h>
-#include <arpa/ftp.h>
-#include <arpa/telnet.h>
-
-#include <ctype.h>
-#include <err.h>
-#include <errno.h>
-#include <netdb.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-#ifdef __STDC__
-#include <stdarg.h>
-#else
-#include <varargs.h>
-#endif
-
-#include "ftp_var.h"
-
-/* wrapper for KAME-special getnameinfo() */
-#ifndef NI_WITHSCOPEID
-#define NI_WITHSCOPEID 0
-#endif
-
-int data = -1;
-int abrtflag = 0;
-jmp_buf ptabort;
-int ptabflg;
-int ptflag = 0;
-
-FILE *cin, *cout;
-
-union sockunion {
- struct sockinet {
- u_char si_len;
- u_char si_family;
- u_short si_port;
- } su_si;
- struct sockaddr_in su_sin;
- struct sockaddr_in6 su_sin6;
-};
-#define su_len su_si.si_len
-#define su_family su_si.si_family
-#define su_port su_si.si_port
-
-union sockunion myctladdr, hisctladdr, data_addr;
-
-char *
-hookup(host0, port)
- const char *host0;
- char *port;
-{
- int s, len, tos, error;
- struct addrinfo hints, *res, *res0;
- static char hostnamebuf[MAXHOSTNAMELEN];
- char *host;
-
- if (*host0 == '[' && strrchr(host0, ']') != NULL) { /*IPv6 addr in []*/
- strncpy(hostnamebuf, host0 + 1, strlen(host0) - 2);
- hostnamebuf[strlen(host0) - 2] = '\0';
- } else {
- strncpy(hostnamebuf, host0, strlen(host0));
- hostnamebuf[strlen(host0)] = '\0';
- }
- host = hostnamebuf;
- memset(&hints, 0, sizeof(hints));
- hints.ai_flags = AI_CANONNAME;
- hints.ai_family = family;
- hints.ai_socktype = SOCK_STREAM;
- hints.ai_protocol = 0;
- error = getaddrinfo(host, port, &hints, &res0);
- if (error) {
- warnx("%s: %s", host, gai_strerror(error));
- if (error == EAI_SYSTEM)
- warnx("%s: %s", host, strerror(errno));
- code = -1;
- return (0);
- }
-
- res = res0;
- if (res->ai_canonname)
- (void) strncpy(hostnamebuf, res->ai_canonname,
- sizeof(hostnamebuf));
- hostname = hostnamebuf;
- while (1) {
- /*
- * make sure that ai_addr is NOT an IPv4 mapped address.
- * IPv4 mapped address complicates too many things in FTP
- * protocol handling, as FTP protocol is defined differently
- * between IPv4 and IPv6.
- */
- ai_unmapped(res);
- s = socket(res->ai_family, res->ai_socktype, res->ai_protocol);
- if (s < 0) {
- res = res->ai_next;
- if (res)
- continue;
- warn("socket");
- code = -1;
- return (0);
- }
- if (dobind) {
- struct addrinfo *bindres;
- int binderr = -1;
-
- for (bindres = bindres0;
- bindres != NULL;
- bindres = bindres->ai_next)
- if (bindres->ai_family == res->ai_family)
- break;
- if (bindres == NULL)
- bindres = bindres0;
- binderr = bind(s, bindres->ai_addr,
- bindres->ai_addrlen);
- if (binderr == -1)
- {
- res = res->ai_next;
- if (res) {
- (void)close(s);
- continue;
- }
- warn("bind");
- code = -1;
- goto bad;
- }
- }
- if (connect(s, res->ai_addr, res->ai_addrlen) == 0)
- break;
- if (res->ai_next) {
- char hname[INET6_ADDRSTRLEN];
- getnameinfo(res->ai_addr, res->ai_addrlen,
- hname, sizeof(hname) - 1, NULL, 0,
- NI_NUMERICHOST|NI_WITHSCOPEID);
- warn("connect to address %s", hname);
- res = res->ai_next;
- getnameinfo(res->ai_addr, res->ai_addrlen,
- hname, sizeof(hname) - 1, NULL, 0,
- NI_NUMERICHOST|NI_WITHSCOPEID);
- printf("Trying %s...\n", hname);
- (void)close(s);
- continue;
- }
- warn("connect");
- code = -1;
- goto bad;
- }
- memcpy(&hisctladdr, res->ai_addr, res->ai_addrlen);
- freeaddrinfo(res0);
- len = sizeof(myctladdr);
- if (getsockname(s, (struct sockaddr *)&myctladdr, &len) < 0) {
- warn("getsockname");
- code = -1;
- goto bad;
- }
-#ifdef IP_TOS
- if (myctladdr.su_family == AF_INET)
- {
- tos = IPTOS_LOWDELAY;
- if (setsockopt(s, IPPROTO_IP, IP_TOS, (char *)&tos, sizeof(int)) < 0)
- warn("setsockopt TOS (ignored)");
- }
-#endif
- cin = fdopen(s, "r");
- cout = fdopen(s, "w");
- if (cin == NULL || cout == NULL) {
- warnx("fdopen failed.");
- if (cin)
- (void)fclose(cin);
- if (cout)
- (void)fclose(cout);
- code = -1;
- goto bad;
- }
- if (verbose)
- printf("Connected to %s.\n", hostname);
- if (getreply(0) > 2) { /* read startup message from server */
- if (cin)
- (void)fclose(cin);
- if (cout)
- (void)fclose(cout);
- code = -1;
- goto bad;
- }
-#ifdef SO_OOBINLINE
- {
- int on = 1;
-
- if (setsockopt(s, SOL_SOCKET, SO_OOBINLINE, (char *)&on, sizeof(on))
- < 0 && debug) {
- warn("setsockopt");
- }
- }
-#endif /* SO_OOBINLINE */
-
- return (hostname);
-bad:
- (void)close(s);
- return ((char *)0);
-}
-
-void
-cmdabort(notused)
- int notused;
-{
-
- alarmtimer(0);
- putchar('\n');
- (void)fflush(stdout);
- abrtflag++;
- if (ptflag)
- longjmp(ptabort, 1);
-}
-
-/*VARARGS*/
-int
-#ifdef __STDC__
-command(const char *fmt, ...)
-#else
-command(va_alist)
- va_dcl
-#endif
-{
- va_list ap;
- int r;
- sig_t oldintr;
-#ifndef __STDC__
- const char *fmt;
-#endif
-
- abrtflag = 0;
- if (debug) {
- fputs("---> ", stdout);
-#ifdef __STDC__
- va_start(ap, fmt);
-#else
- va_start(ap);
- fmt = va_arg(ap, const char *);
-#endif
- if (strncmp("PASS ", fmt, 5) == 0)
- fputs("PASS XXXX", stdout);
- else if (strncmp("ACCT ", fmt, 5) == 0)
- fputs("ACCT XXXX", stdout);
- else
- vprintf(fmt, ap);
- va_end(ap);
- putchar('\n');
- (void)fflush(stdout);
- }
- if (cout == NULL) {
- warnx("No control connection for command.");
- code = -1;
- return (0);
- }
- oldintr = signal(SIGINT, cmdabort);
-#ifdef __STDC__
- va_start(ap, fmt);
-#else
- va_start(ap);
- fmt = va_arg(ap, char *);
-#endif
- vfprintf(cout, fmt, ap);
- va_end(ap);
- fputs("\r\n", cout);
- (void)fflush(cout);
- cpend = 1;
- r = getreply(!strcmp(fmt, "QUIT"));
- if (abrtflag && oldintr != SIG_IGN)
- (*oldintr)(SIGINT);
- (void)signal(SIGINT, oldintr);
- return (r);
-}
-
-char reply_string[BUFSIZ]; /* first line of previous reply */
-
-int
-getreply(expecteof)
- int expecteof;
-{
- char current_line[BUFSIZ]; /* last line of previous reply */
- int c, n, line;
- int dig;
- int originalcode = 0, continuation = 0;
- sig_t oldintr;
- int pflag = 0;
- char *cp, *pt = pasv;
-
- oldintr = signal(SIGINT, cmdabort);
- for (line = 0 ;; line++) {
- dig = n = code = 0;
- cp = current_line;
- while ((c = getc(cin)) != '\n') {
- if (c == IAC) { /* handle telnet commands */
- switch (c = getc(cin)) {
- case WILL:
- case WONT:
- c = getc(cin);
- fprintf(cout, "%c%c%c", IAC, DONT, c);
- (void)fflush(cout);
- break;
- case DO:
- case DONT:
- c = getc(cin);
- fprintf(cout, "%c%c%c", IAC, WONT, c);
- (void)fflush(cout);
- break;
- default:
- break;
- }
- continue;
- }
- dig++;
- if (c == EOF) {
- if (expecteof) {
- (void)signal(SIGINT, oldintr);
- code = 221;
- return (0);
- }
- lostpeer();
- if (verbose) {
- puts(
-"421 Service not available, remote server has closed connection.");
- (void)fflush(stdout);
- }
- code = 421;
- return (4);
- }
- if (c != '\r' && (verbose > 0 ||
- (verbose > -1 && n == '5' && dig > 4))) {
- if (proxflag &&
- (dig == 1 || (dig == 5 && verbose == 0)))
- printf("%s:", hostname);
- (void)putchar(c);
- }
- if (dig < 4 && isdigit((unsigned char)c))
- code = code * 10 + (c - '0');
- switch (pflag) {
- case 0:
- if (code == 227 || code == 228) {
- /* result for PASV/LPSV */
- pflag = 1;
- /* fall through */
- } else if (code == 229) {
- /* result for EPSV */
- pflag = 100;
- break;
- } else
- break;
- case 1:
- if (!(dig > 4 && isdigit((unsigned char)c)))
- break;
- pflag = 2;
- /* fall through */
- case 2:
- if (c != '\r' && c != ')' &&
- pt < &pasv[sizeof(pasv)-1])
- *pt++ = c;
- else {
- *pt = '\0';
- pflag = 3;
- }
- break;
- case 100:
- if (dig > 4 && c == '(')
- pflag = 2;
- break;
- }
- if (dig == 4 && c == '-') {
- if (continuation)
- code = 0;
- continuation++;
- }
- if (n == 0)
- n = c;
- if (cp < &current_line[sizeof(current_line) - 1])
- *cp++ = c;
- }
- if (verbose > 0 || (verbose > -1 && n == '5')) {
- (void)putchar(c);
- (void)fflush (stdout);
- }
- if (line == 0) {
- size_t len = cp - current_line;
-
- if (len > sizeof(reply_string))
- len = sizeof(reply_string);
-
- (void)strncpy(reply_string, current_line, len);
- reply_string[len] = '\0';
- }
- if (continuation && code != originalcode) {
- if (originalcode == 0)
- originalcode = code;
- continue;
- }
- *cp = '\0';
- if (n != '1')
- cpend = 0;
- (void)signal(SIGINT, oldintr);
- if (code == 421 || originalcode == 421)
- lostpeer();
- if (abrtflag && oldintr != cmdabort && oldintr != SIG_IGN)
- (*oldintr)(SIGINT);
- return (n - '0');
- }
-}
-
-int
-empty(mask, sec)
- fd_set *mask;
- int sec;
-{
- struct timeval t;
-
- t.tv_sec = (long) sec;
- t.tv_usec = 0;
- return (select(32, mask, (fd_set *) 0, (fd_set *) 0, &t));
-}
-
-jmp_buf sendabort;
-
-void
-abortsend(notused)
- int notused;
-{
-
- alarmtimer(0);
- mflag = 0;
- abrtflag = 0;
- puts("\nsend aborted\nwaiting for remote to finish abort.");
- (void)fflush(stdout);
- longjmp(sendabort, 1);
-}
-
-void
-sendrequest(cmd, local, remote, printnames)
- const char *cmd, *local, *remote;
- int printnames;
-{
- struct stat st;
- int c, d;
- FILE *fin, *dout;
- int (*closefunc) __P((FILE *));
- sig_t oldinti, oldintr, oldintp;
- volatile off_t hashbytes;
- char *lmode, buf[BUFSIZ], *bufp;
- int oprogress;
-
-#ifdef __GNUC__ /* XXX: to shut up gcc warnings */
- (void)&fin;
- (void)&dout;
- (void)&closefunc;
- (void)&oldinti;
- (void)&oldintr;
- (void)&oldintp;
- (void)&lmode;
-#endif
-
- hashbytes = mark;
- direction = "sent";
- dout = NULL;
- bytes = 0;
- filesize = -1;
- oprogress = progress;
- if (verbose && printnames) {
- if (local && *local != '-')
- printf("local: %s ", local);
- if (remote)
- printf("remote: %s\n", remote);
- }
- if (proxy) {
- proxtrans(cmd, local, remote);
- return;
- }
- if (curtype != type)
- changetype(type, 0);
- closefunc = NULL;
- oldintr = NULL;
- oldintp = NULL;
- oldinti = NULL;
- lmode = "w";
- if (setjmp(sendabort)) {
- while (cpend) {
- (void)getreply(0);
- }
- if (data >= 0) {
- (void)close(data);
- data = -1;
- }
- if (oldintr)
- (void)signal(SIGINT, oldintr);
- if (oldintp)
- (void)signal(SIGPIPE, oldintp);
- if (oldinti)
- (void)signal(SIGINFO, oldinti);
- code = -1;
- goto cleanupsend;
- }
- oldintr = signal(SIGINT, abortsend);
- oldinti = signal(SIGINFO, psummary);
- if (strcmp(local, "-") == 0) {
- fin = stdin;
- progress = 0;
- } else if (*local == '|') {
- oldintp = signal(SIGPIPE, SIG_IGN);
- fin = popen(local + 1, "r");
- if (fin == NULL) {
- warn("%s", local + 1);
- (void)signal(SIGINT, oldintr);
- (void)signal(SIGPIPE, oldintp);
- (void)signal(SIGINFO, oldinti);
- code = -1;
- goto cleanupsend;
- }
- progress = 0;
- closefunc = pclose;
- } else {
- fin = fopen(local, "r");
- if (fin == NULL) {
- warn("local: %s", local);
- (void)signal(SIGINT, oldintr);
- (void)signal(SIGINFO, oldinti);
- code = -1;
- goto cleanupsend;
- }
- closefunc = fclose;
- if (fstat(fileno(fin), &st) < 0 || !S_ISREG(st.st_mode)) {
- printf("%s: not a plain file.\n", local);
- (void)signal(SIGINT, oldintr);
- (void)signal(SIGINFO, oldinti);
- fclose(fin);
- code = -1;
- goto cleanupsend;
- }
- filesize = st.st_size;
- }
- if (initconn()) {
- (void)signal(SIGINT, oldintr);
- (void)signal(SIGINFO, oldinti);
- if (oldintp)
- (void)signal(SIGPIPE, oldintp);
- code = -1;
- if (closefunc != NULL)
- (*closefunc)(fin);
- goto cleanupsend;
- }
- if (setjmp(sendabort))
- goto abort;
-
- if (restart_point &&
- (strcmp(cmd, "STOR") == 0 || strcmp(cmd, "APPE") == 0)) {
- int rc;
-
- rc = -1;
- switch (curtype) {
- case TYPE_A:
- rc = fseeko(fin, restart_point, SEEK_SET);
- break;
- case TYPE_I:
- case TYPE_L:
- rc = lseek(fileno(fin), restart_point, SEEK_SET);
- break;
- }
- if (rc < 0) {
- warn("local: %s", local);
- if (closefunc != NULL)
- (*closefunc)(fin);
- goto cleanupsend;
- }
- if (command("REST %qd", (long long) restart_point) !=
- CONTINUE) {
- if (closefunc != NULL)
- (*closefunc)(fin);
- goto cleanupsend;
- }
- lmode = "r+w";
- }
- if (remote) {
- if (command("%s %s", cmd, remote) != PRELIM) {
- (void)signal(SIGINT, oldintr);
- (void)signal(SIGINFO, oldinti);
- if (oldintp)
- (void)signal(SIGPIPE, oldintp);
- if (closefunc != NULL)
- (*closefunc)(fin);
- goto cleanupsend;
- }
- } else
- if (command("%s", cmd) != PRELIM) {
- (void)signal(SIGINT, oldintr);
- (void)signal(SIGINFO, oldinti);
- if (oldintp)
- (void)signal(SIGPIPE, oldintp);
- if (closefunc != NULL)
- (*closefunc)(fin);
- goto cleanupsend;
- }
- dout = dataconn(lmode);
- if (dout == NULL)
- goto abort;
- progressmeter(-1);
- oldintp = signal(SIGPIPE, SIG_IGN);
- switch (curtype) {
-
- case TYPE_I:
- case TYPE_L:
- errno = d = 0;
- while ((c = read(fileno(fin), buf, sizeof(buf))) > 0) {
- bytes += c;
- for (bufp = buf; c > 0; c -= d, bufp += d)
- if ((d = write(fileno(dout), bufp, c)) <= 0)
- break;
- if (hash && (!progress || filesize < 0) ) {
- while (bytes >= hashbytes) {
- (void)putchar('#');
- hashbytes += mark;
- }
- (void)fflush(stdout);
- }
- }
- if (hash && (!progress || filesize < 0) && bytes > 0) {
- if (bytes < mark)
- (void)putchar('#');
- (void)putchar('\n');
- (void)fflush(stdout);
- }
- if (c < 0)
- warn("local: %s", local);
- if (d < 0) {
- if (errno != EPIPE)
- warn("netout");
- bytes = -1;
- }
- break;
-
- case TYPE_A:
- while ((c = getc(fin)) != EOF) {
- if (c == '\n') {
- while (hash && (!progress || filesize < 0) &&
- (bytes >= hashbytes)) {
- (void)putchar('#');
- (void)fflush(stdout);
- hashbytes += mark;
- }
- if (ferror(dout))
- break;
- (void)putc('\r', dout);
- bytes++;
- }
- (void)putc(c, dout);
- bytes++;
-#if 0 /* this violates RFC */
- if (c == '\r') {
- (void)putc('\0', dout);
- bytes++;
- }
-#endif
- }
- if (hash && (!progress || filesize < 0)) {
- if (bytes < hashbytes)
- (void)putchar('#');
- (void)putchar('\n');
- (void)fflush(stdout);
- }
- if (ferror(fin))
- warn("local: %s", local);
- if (ferror(dout)) {
- if (errno != EPIPE)
- warn("netout");
- bytes = -1;
- }
- break;
- }
- progressmeter(1);
- if (closefunc != NULL)
- (*closefunc)(fin);
- (void)fclose(dout);
- (void)getreply(0);
- (void)signal(SIGINT, oldintr);
- (void)signal(SIGINFO, oldinti);
- if (oldintp)
- (void)signal(SIGPIPE, oldintp);
- if (bytes > 0)
- ptransfer(0);
- goto cleanupsend;
-abort:
- (void)signal(SIGINT, oldintr);
- (void)signal(SIGINFO, oldinti);
- if (oldintp)
- (void)signal(SIGPIPE, oldintp);
- if (!cpend) {
- code = -1;
- return;
- }
- if (data >= 0) {
- (void)close(data);
- data = -1;
- }
- if (dout)
- (void)fclose(dout);
- (void)getreply(0);
- code = -1;
- if (closefunc != NULL && fin != NULL)
- (*closefunc)(fin);
- if (bytes > 0)
- ptransfer(0);
-cleanupsend:
- progress = oprogress;
- restart_point = 0;
-}
-
-jmp_buf recvabort;
-
-void
-abortrecv(notused)
- int notused;
-{
-
- alarmtimer(0);
- mflag = 0;
- abrtflag = 0;
- puts("\nreceive aborted\nwaiting for remote to finish abort.");
- (void)fflush(stdout);
- longjmp(recvabort, 1);
-}
-
-void
-recvrequest(cmd, local, remote, lmode, printnames, ignorespecial)
- const char *cmd, *local, *remote, *lmode;
- int printnames, ignorespecial;
-{
- FILE *fout, *din;
- int (*closefunc) __P((FILE *));
- sig_t oldinti, oldintr, oldintp;
- int c, d;
- volatile int is_retr, tcrflag, bare_lfs;
- static size_t bufsize;
- static char *buf;
- volatile off_t hashbytes;
- struct stat st;
- time_t mtime;
- struct timeval tval[2];
- int oprogress;
- int opreserve;
-
-#ifdef __GNUC__ /* XXX: to shut up gcc warnings */
- (void)&local;
- (void)&fout;
- (void)&din;
- (void)&closefunc;
- (void)&oldinti;
- (void)&oldintr;
- (void)&oldintp;
-#endif
-
- fout = NULL;
- din = NULL;
- oldinti = NULL;
- hashbytes = mark;
- direction = "received";
- bytes = 0;
- bare_lfs = 0;
- filesize = -1;
- oprogress = progress;
- opreserve = preserve;
- is_retr = (strcmp(cmd, "RETR") == 0);
- if (is_retr && verbose && printnames) {
- if (local && (ignorespecial || *local != '-'))
- printf("local: %s ", local);
- if (remote)
- printf("remote: %s\n", remote);
- }
- if (proxy && is_retr) {
- proxtrans(cmd, local, remote);
- return;
- }
- closefunc = NULL;
- oldintr = NULL;
- oldintp = NULL;
- tcrflag = !crflag && is_retr;
- if (setjmp(recvabort)) {
- while (cpend) {
- (void)getreply(0);
- }
- if (data >= 0) {
- (void)close(data);
- data = -1;
- }
- if (oldintr)
- (void)signal(SIGINT, oldintr);
- if (oldinti)
- (void)signal(SIGINFO, oldinti);
- progress = oprogress;
- preserve = opreserve;
- code = -1;
- return;
- }
- oldintr = signal(SIGINT, abortrecv);
- oldinti = signal(SIGINFO, psummary);
- if (ignorespecial || (strcmp(local, "-") && *local != '|')) {
- if (access(local, W_OK) < 0) {
- char *dir = strrchr(local, '/');
-
- if (errno != ENOENT && errno != EACCES) {
- warn("local: %s", local);
- (void)signal(SIGINT, oldintr);
- (void)signal(SIGINFO, oldinti);
- code = -1;
- return;
- }
- if (dir != NULL)
- *dir = 0;
- d = access(dir == local ? "/" : dir ? local : ".", W_OK);
- if (dir != NULL)
- *dir = '/';
- if (d < 0) {
- warn("local: %s", local);
- (void)signal(SIGINT, oldintr);
- (void)signal(SIGINFO, oldinti);
- code = -1;
- return;
- }
- if (!runique && errno == EACCES &&
- chmod(local, 0600) < 0) {
- warn("local: %s", local);
- (void)signal(SIGINT, oldintr);
- (void)signal(SIGINFO, oldinti);
- code = -1;
- return;
- }
- if (runique && errno == EACCES &&
- (local = gunique(local)) == NULL) {
- (void)signal(SIGINT, oldintr);
- (void)signal(SIGINFO, oldinti);
- code = -1;
- return;
- }
- }
- else if (runique && (local = gunique(local)) == NULL) {
- (void)signal(SIGINT, oldintr);
- (void)signal(SIGINFO, oldinti);
- code = -1;
- return;
- }
- }
- if (!is_retr) {
- if (curtype != TYPE_A)
- changetype(TYPE_A, 0);
- } else {
- if (curtype != type)
- changetype(type, 0);
- filesize = remotesize(remote, 0);
- }
- if (initconn()) {
- (void)signal(SIGINT, oldintr);
- (void)signal(SIGINFO, oldinti);
- code = -1;
- return;
- }
- if (setjmp(recvabort))
- goto abort;
- if (is_retr && restart_point &&
- command("REST %qd", (long long) restart_point) != CONTINUE)
- return;
- if (remote) {
- if (command("%s %s", cmd, remote) != PRELIM) {
- (void)signal(SIGINT, oldintr);
- (void)signal(SIGINFO, oldinti);
- return;
- }
- } else {
- if (command("%s", cmd) != PRELIM) {
- (void)signal(SIGINT, oldintr);
- (void)signal(SIGINFO, oldinti);
- return;
- }
- }
- din = dataconn("r");
- if (din == NULL)
- goto abort;
- if (!ignorespecial && strcmp(local, "-") == 0) {
- fout = stdout;
- progress = 0;
- preserve = 0;
- } else if (!ignorespecial && *local == '|') {
- oldintp = signal(SIGPIPE, SIG_IGN);
- fout = popen(local + 1, "w");
- if (fout == NULL) {
- warn("%s", local+1);
- goto abort;
- }
- progress = 0;
- preserve = 0;
- closefunc = pclose;
- } else {
- fout = fopen(local, lmode);
- if (fout == NULL) {
- warn("local: %s", local);
- goto abort;
- }
- closefunc = fclose;
- }
- if (fstat(fileno(fout), &st) < 0 || st.st_blksize == 0)
- st.st_blksize = BUFSIZ;
- if (st.st_blksize > bufsize) {
- if (buf)
- (void)free(buf);
- buf = malloc((unsigned)st.st_blksize);
- if (buf == NULL) {
- warn("malloc");
- bufsize = 0;
- goto abort;
- }
- bufsize = st.st_blksize;
- }
- if (!S_ISREG(st.st_mode)) {
- progress = 0;
- preserve = 0;
- }
- progressmeter(-1);
- switch (curtype) {
-
- case TYPE_I:
- case TYPE_L:
- if (is_retr && restart_point &&
- lseek(fileno(fout), restart_point, SEEK_SET) < 0) {
- warn("local: %s", local);
- progress = oprogress;
- preserve = opreserve;
- if (closefunc != NULL)
- (*closefunc)(fout);
- return;
- }
- errno = d = 0;
- while ((c = read(fileno(din), buf, bufsize)) > 0) {
- if ((d = write(fileno(fout), buf, c)) != c)
- break;
- bytes += c;
- if (hash && (!progress || filesize < 0)) {
- while (bytes >= hashbytes) {
- (void)putchar('#');
- hashbytes += mark;
- }
- (void)fflush(stdout);
- }
- }
- if (hash && (!progress || filesize < 0) && bytes > 0) {
- if (bytes < mark)
- (void)putchar('#');
- (void)putchar('\n');
- (void)fflush(stdout);
- }
- if (c < 0) {
- if (errno != EPIPE)
- warn("netin");
- bytes = -1;
- }
- if (d < c) {
- if (d < 0)
- warn("local: %s", local);
- else
- warnx("%s: short write", local);
- }
- break;
-
- case TYPE_A:
- if (is_retr && restart_point) {
- int ch;
- off_t i, n;
-
- if (fseeko(fout, (off_t)0, SEEK_SET) < 0)
- goto done;
- n = restart_point;
- for (i = 0; i++ < n;) {
- if ((ch = getc(fout)) == EOF)
- goto done;
- if (ch == '\n')
- i++;
- }
- if (fseeko(fout, (off_t)0, SEEK_CUR) < 0) {
-done:
- warn("local: %s", local);
- progress = oprogress;
- preserve = opreserve;
- if (closefunc != NULL)
- (*closefunc)(fout);
- return;
- }
- }
- while ((c = getc(din)) != EOF) {
- if (c == '\n')
- bare_lfs++;
- while (c == '\r') {
- while (hash && (!progress || filesize < 0) &&
- (bytes >= hashbytes)) {
- (void)putchar('#');
- (void)fflush(stdout);
- hashbytes += mark;
- }
- bytes++;
- if ((c = getc(din)) != '\n' || tcrflag) {
- if (ferror(fout))
- goto break2;
- (void)putc('\r', fout);
- if (c == '\0') {
- bytes++;
- goto contin2;
- }
- if (c == EOF)
- goto contin2;
- }
- }
- (void)putc(c, fout);
- bytes++;
- contin2: ;
- }
-break2:
- if (bare_lfs) {
- printf(
-"WARNING! %d bare linefeeds received in ASCII mode.\n", bare_lfs);
- puts("File may not have transferred correctly.");
- }
- if (hash && (!progress || filesize < 0)) {
- if (bytes < hashbytes)
- (void)putchar('#');
- (void)putchar('\n');
- (void)fflush(stdout);
- }
- if (ferror(din)) {
- if (errno != EPIPE)
- warn("netin");
- bytes = -1;
- }
- if (ferror(fout))
- warn("local: %s", local);
- break;
- }
- progressmeter(1);
- progress = oprogress;
- preserve = opreserve;
- if (closefunc != NULL)
- (*closefunc)(fout);
- (void)signal(SIGINT, oldintr);
- (void)signal(SIGINFO, oldinti);
- if (oldintp)
- (void)signal(SIGPIPE, oldintp);
- (void)fclose(din);
- (void)getreply(0);
- if (bytes >= 0 && is_retr) {
- if (bytes > 0)
- ptransfer(0);
- if (preserve && (closefunc == fclose)) {
- mtime = remotemodtime(remote, 0);
- if (mtime != -1) {
- (void)gettimeofday(&tval[0],
- (struct timezone *)0);
- tval[1].tv_sec = mtime;
- tval[1].tv_usec = 0;
- if (utimes(local, tval) == -1) {
- printf(
- "Can't change modification time on %s to %s",
- local, asctime(localtime(&mtime)));
- }
- }
- }
- }
- return;
-
-abort:
-
-/* abort using RFC959 recommended IP,SYNC sequence */
-
- progress = oprogress;
- preserve = opreserve;
- if (oldintp)
- (void)signal(SIGPIPE, oldintp);
- (void)signal(SIGINT, SIG_IGN);
- if (!cpend) {
- code = -1;
- (void)signal(SIGINT, oldintr);
- (void)signal(SIGINFO, oldinti);
- return;
- }
-
- abort_remote(din);
- code = -1;
- if (data >= 0) {
- (void)close(data);
- data = -1;
- }
- if (closefunc != NULL && fout != NULL)
- (*closefunc)(fout);
- if (din)
- (void)fclose(din);
- if (bytes > 0)
- ptransfer(0);
- (void)signal(SIGINT, oldintr);
- (void)signal(SIGINFO, oldinti);
-}
-
-/*
- * Need to start a listen on the data channel before we send the command,
- * otherwise the server's connect may fail.
- */
-int
-initconn()
-{
- char *p, *a;
- int result, len, tmpno = 0;
- int on = 1;
- int error, ports;
- u_int af;
- u_int hal, h[16];
- u_int pal, prt[2];
- char *pasvcmd;
-
-#ifdef INET6
- if (myctladdr.su_family == AF_INET6
- && (IN6_IS_ADDR_LINKLOCAL(&myctladdr.su_sin6.sin6_addr)
- || IN6_IS_ADDR_SITELOCAL(&myctladdr.su_sin6.sin6_addr))) {
- warnx("use of scoped address can be troublesome");
- }
-#endif
-
- if (passivemode) {
-#ifdef __GNUC__ /* XXX: to shut up gcc warnings */
- (void)&pasvcmd;
-#endif
- data_addr = myctladdr;
- data = socket(data_addr.su_family, SOCK_STREAM, 0);
- if (data < 0) {
- warn("socket");
- return (1);
- }
- if (dobind) {
- struct addrinfo *bindres;
- int binderr = -1;
-
- for (bindres = bindres0;
- bindres != NULL;
- bindres = bindres->ai_next)
- if (bindres->ai_family == data_addr.su_family)
- break;
- if (bindres == NULL)
- bindres = bindres0;
- binderr = bind(data, bindres->ai_addr,
- bindres->ai_addrlen);
- if (binderr == -1)
- {
- warn("bind");
- goto bad;
- }
- }
- if ((options & SO_DEBUG) &&
- setsockopt(data, SOL_SOCKET, SO_DEBUG, (char *)&on,
- sizeof(on)) < 0)
- warn("setsockopt (ignored)");
- switch (data_addr.su_family) {
- case AF_INET:
- if (try_epsv) {
- int overbose;
-
- overbose = verbose;
- if (debug == 0)
- verbose = -1;
- result = command(pasvcmd = "EPSV");
- verbose = overbose;
- if (code / 10 == 22 && code != 229) {
- puts("wrong server: EPSV return code must be 229");
- result = COMPLETE + 1;
- }
- } else
- result = COMPLETE + 1;
- if (result != COMPLETE) {
- try_epsv = 0;
- result = command(pasvcmd = "PASV");
- }
- break;
-#ifdef INET6
- case AF_INET6:
- result = command(pasvcmd = "EPSV");
- if (code / 10 == 22 && code != 229) {
- puts("wrong server: EPSV return code must be 229");
- result = COMPLETE + 1;
- }
- if (result != COMPLETE)
- result = command(pasvcmd = "LPSV");
- break;
-#endif
- default:
- result = COMPLETE + 1;
- }
- if (result != COMPLETE) {
- puts("Passive mode refused.");
- goto bad;
- }
-
-#define pack2(var, offset) \
- (((var[(offset) + 0] & 0xff) << 8) | ((var[(offset) + 1] & 0xff) << 0))
-#define pack4(var, offset) \
- (((var[(offset) + 0] & 0xff) << 24) | ((var[(offset) + 1] & 0xff) << 16) \
- | ((var[(offset) + 2] & 0xff) << 8) | ((var[(offset) + 3] & 0xff) << 0))
- /*
- * What we've got at this point is a string of comma
- * separated one-byte unsigned integer values.
- * In PASV case,
- * The first four are the an IP address. The fifth is
- * the MSB of the port number, the sixth is the LSB.
- * From that we'll prepare a sockaddr_in.
- * In other case, the format is more complicated.
- */
- if (strcmp(pasvcmd, "PASV") == 0) {
- if (code / 10 == 22 && code != 227) {
- puts("wrong server: return code must be 227");
- error = 1;
- goto bad;
- }
- error = sscanf(pasv, "%d,%d,%d,%d,%d,%d",
- &h[0], &h[1], &h[2], &h[3],
- &prt[0], &prt[1]);
- if (error == 6) {
- error = 0;
- data_addr.su_sin.sin_addr.s_addr =
- htonl(pack4(h, 0));
- } else
- error = 1;
- } else if (strcmp(pasvcmd, "LPSV") == 0) {
- if (code / 10 == 22 && code != 228) {
- puts("wrong server: return code must be 228");
- error = 1;
- goto bad;
- }
- switch (data_addr.su_family) {
- case AF_INET:
- error = sscanf(pasv,
-"%d,%d,%d,%d,%d,%d,%d,%d,%d",
- &af, &hal,
- &h[0], &h[1], &h[2], &h[3],
- &pal, &prt[0], &prt[1]);
- if (error == 9 && af == 4 && hal == 4 && pal == 2) {
- error = 0;
- data_addr.su_sin.sin_addr.s_addr =
- htonl(pack4(h, 0));
- } else
- error = 1;
- break;
-#ifdef INET6
- case AF_INET6:
- error = sscanf(pasv,
-"%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d",
- &af, &hal,
- &h[0], &h[1], &h[2], &h[3],
- &h[4], &h[5], &h[6], &h[7],
- &h[8], &h[9], &h[10], &h[11],
- &h[12], &h[13], &h[14], &h[15],
- &pal, &prt[0], &prt[1]);
- if (error != 21 || af != 6 || hal != 16 || pal != 2) {
- error = 1;
- break;
- }
-
- error = 0;
- {
- u_int32_t *p32;
- p32 = (u_int32_t *)&data_addr.su_sin6.sin6_addr;
- p32[0] = htonl(pack4(h, 0));
- p32[1] = htonl(pack4(h, 4));
- p32[2] = htonl(pack4(h, 8));
- p32[3] = htonl(pack4(h, 12));
- }
- break;
-#endif
- default:
- error = 1;
- }
- } else if (strcmp(pasvcmd, "EPSV") == 0) {
- char delim[4];
-
- prt[0] = 0;
- if (code / 10 == 22 && code != 229) {
- puts("wrong server: return code must be 229");
- error = 1;
- goto bad;
- }
- error = sscanf(pasv, "%c%c%c%d%c",
- &delim[0], &delim[1], &delim[2],
- &prt[1], &delim[3]);
- if (error != 5) {
- error = 1;
- goto epsv_done;
- }
- if (delim[0] != delim[1] || delim[0] != delim[2]
- || delim[0] != delim[3]) {
- error = 1;
- goto epsv_done;
- }
-
- data_addr = hisctladdr;
- /* quickhack */
- prt[0] = (prt[1] & 0xff00) >> 8;
- prt[1] &= 0xff;
- error = 0;
-epsv_done:
- } else
- error = 1;
-
- if (error) {
- puts(
-"Passive mode address scan failure. Shouldn't happen!");
- goto bad;
- };
-
- data_addr.su_port = htons(pack2(prt, 0));
-
- if (connect(data, (struct sockaddr *)&data_addr,
- data_addr.su_len) < 0) {
- warn("connect");
- goto bad;
- }
-#ifdef IP_TOS
- if (data_addr.su_family == AF_INET)
- {
- on = IPTOS_THROUGHPUT;
- if (setsockopt(data, IPPROTO_IP, IP_TOS, (char *)&on,
- sizeof(int)) < 0)
- warn("setsockopt TOS (ignored)");
- }
-#endif
- return (0);
- }
-
-noport:
- data_addr = myctladdr;
- if (sendport)
- data_addr.su_port = 0; /* let system pick one */
- if (data != -1)
- (void)close(data);
- data = socket(data_addr.su_family, SOCK_STREAM, 0);
- if (data < 0) {
- warn("socket");
- if (tmpno)
- sendport = 1;
- return (1);
- }
- if (!sendport)
- if (setsockopt(data, SOL_SOCKET, SO_REUSEADDR, (char *)&on,
- sizeof(on)) < 0) {
- warn("setsockopt (reuse address)");
- goto bad;
- }
-#ifdef IP_PORTRANGE
- if (data_addr.su_family == AF_INET)
- {
-
- ports = restricted_data_ports ? IP_PORTRANGE_HIGH : IP_PORTRANGE_DEFAULT;
- if (setsockopt(data, IPPROTO_IP, IP_PORTRANGE, (char *)&ports,
- sizeof(ports)) < 0)
- warn("setsockopt PORTRANGE (ignored)");
- }
-#endif
-#ifdef INET6
-#ifdef IPV6_PORTRANGE
- if (data_addr.su_family == AF_INET6) {
- ports = restricted_data_ports ? IPV6_PORTRANGE_HIGH
- : IPV6_PORTRANGE_DEFAULT;
- if (setsockopt(data, IPPROTO_IPV6, IPV6_PORTRANGE,
- (char *)&ports, sizeof(ports)) < 0)
- warn("setsockopt PORTRANGE (ignored)");
- }
-#endif
-#endif
- if (bind(data, (struct sockaddr *)&data_addr, data_addr.su_len) < 0) {
- warn("bind");
- goto bad;
- }
- if (options & SO_DEBUG &&
- setsockopt(data, SOL_SOCKET, SO_DEBUG, (char *)&on,
- sizeof(on)) < 0)
- warn("setsockopt (ignored)");
- len = sizeof(data_addr);
- if (getsockname(data, (struct sockaddr *)&data_addr, &len) < 0) {
- warn("getsockname");
- goto bad;
- }
- if (listen(data, 1) < 0)
- warn("listen");
- if (sendport) {
- char hname[INET6_ADDRSTRLEN];
- int af;
- struct sockaddr_in data_addr4;
- union sockunion *daddr;
-
-#ifdef INET6
- if (data_addr.su_family == AF_INET6 &&
- IN6_IS_ADDR_V4MAPPED(&data_addr.su_sin6.sin6_addr)) {
- memset(&data_addr4, 0, sizeof(data_addr4));
- data_addr4.sin_len = sizeof(struct sockaddr_in);
- data_addr4.sin_family = AF_INET;
- data_addr4.sin_port = data_addr.su_port;
- memcpy((caddr_t)&data_addr4.sin_addr,
- (caddr_t)&data_addr.su_sin6.sin6_addr.s6_addr[12],
- sizeof(struct in_addr));
- daddr = (union sockunion *)&data_addr4;
- } else
-#endif
- daddr = &data_addr;
-
-
-
-#define UC(b) (((int)b)&0xff)
-
- switch (daddr->su_family) {
-#ifdef INET6
- case AF_INET6:
-#endif
- af = (daddr->su_family == AF_INET) ? 1 : 2;
- if (getnameinfo((struct sockaddr *)daddr,
- daddr->su_len, hname,
- sizeof(hname) - 1, NULL, 0,
- NI_NUMERICHOST)) {
- result = ERROR;
- } else {
- result = command("EPRT |%d|%s|%d|",
- af, hname, ntohs(daddr->su_port));
- }
- break;
- default:
- result = COMPLETE + 1;
- break;
- }
- if (result == COMPLETE)
- goto skip_port;
-
- p = (char *)&daddr->su_port;
- switch (daddr->su_family) {
- case AF_INET:
- a = (char *)&daddr->su_sin.sin_addr;
- result = command("PORT %d,%d,%d,%d,%d,%d",
- UC(a[0]),UC(a[1]),UC(a[2]),UC(a[3]),
- UC(p[0]), UC(p[1]));
- break;
-#ifdef INET6
- case AF_INET6:
- a = (char *)&daddr->su_sin6.sin6_addr;
- result = command(
-"LPRT %d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d",
- 6, 16,
- UC(a[0]),UC(a[1]),UC(a[2]),UC(a[3]),
- UC(a[4]),UC(a[5]),UC(a[6]),UC(a[7]),
- UC(a[8]),UC(a[9]),UC(a[10]),UC(a[11]),
- UC(a[12]),UC(a[13]),UC(a[14]),UC(a[15]),
- 2, UC(p[0]), UC(p[1]));
- break;
-#endif
- default:
- result = COMPLETE + 1; /* xxx */
- }
- skip_port:
-
- if (result == ERROR && sendport == -1) {
- sendport = 0;
- tmpno = 1;
- goto noport;
- }
- return (result != COMPLETE);
- }
- if (tmpno)
- sendport = 1;
-#ifdef IP_TOS
- if (data_addr.su_family == AF_INET)
- {
- on = IPTOS_THROUGHPUT;
- if (setsockopt(data, IPPROTO_IP, IP_TOS, (char *)&on, sizeof(int)) < 0)
- warn("setsockopt TOS (ignored)");
- }
-#endif
- return (0);
-bad:
- (void)close(data), data = -1;
- if (tmpno)
- sendport = 1;
- return (1);
-}
-
-FILE *
-dataconn(lmode)
- const char *lmode;
-{
- union sockunion from;
- int s, fromlen, tos;
-
- fromlen = myctladdr.su_len;
-
- if (passivemode)
- return (fdopen(data, lmode));
-
- s = accept(data, (struct sockaddr *) &from, &fromlen);
- if (s < 0) {
- warn("accept");
- (void)close(data), data = -1;
- return (NULL);
- }
- (void)close(data);
- data = s;
-#ifdef IP_TOS
- if (data_addr.su_family == AF_INET)
- {
- tos = IPTOS_THROUGHPUT;
- if (setsockopt(s, IPPROTO_IP, IP_TOS, (char *)&tos, sizeof(int)) < 0)
- warn("setsockopt TOS (ignored)");
- }
-#endif
- return (fdopen(data, lmode));
-}
-
-void
-psummary(notused)
- int notused;
-{
-
- if (bytes > 0)
- ptransfer(1);
-}
-
-void
-psabort(notused)
- int notused;
-{
-
- alarmtimer(0);
- abrtflag++;
-}
-
-void
-pswitch(flag)
- int flag;
-{
- sig_t oldintr;
- static struct comvars {
- int connect;
- char name[MAXHOSTNAMELEN];
- union sockunion mctl;
- union sockunion hctl;
- FILE *in;
- FILE *out;
- int tpe;
- int curtpe;
- int cpnd;
- int sunqe;
- int runqe;
- int mcse;
- int ntflg;
- char nti[17];
- char nto[17];
- int mapflg;
- char mi[MAXPATHLEN];
- char mo[MAXPATHLEN];
- } proxstruct, tmpstruct;
- struct comvars *ip, *op;
-
- abrtflag = 0;
- oldintr = signal(SIGINT, psabort);
- if (flag) {
- if (proxy)
- return;
- ip = &tmpstruct;
- op = &proxstruct;
- proxy++;
- } else {
- if (!proxy)
- return;
- ip = &proxstruct;
- op = &tmpstruct;
- proxy = 0;
- }
- ip->connect = connected;
- connected = op->connect;
- if (hostname) {
- (void)strncpy(ip->name, hostname, sizeof(ip->name) - 1);
- ip->name[sizeof(ip->name) - 1] = '\0';
- } else
- ip->name[0] = '\0';
- hostname = op->name;
- ip->hctl = hisctladdr;
- hisctladdr = op->hctl;
- ip->mctl = myctladdr;
- myctladdr = op->mctl;
- ip->in = cin;
- cin = op->in;
- ip->out = cout;
- cout = op->out;
- ip->tpe = type;
- type = op->tpe;
- ip->curtpe = curtype;
- curtype = op->curtpe;
- ip->cpnd = cpend;
- cpend = op->cpnd;
- ip->sunqe = sunique;
- sunique = op->sunqe;
- ip->runqe = runique;
- runique = op->runqe;
- ip->mcse = mcase;
- mcase = op->mcse;
- ip->ntflg = ntflag;
- ntflag = op->ntflg;
- (void)strncpy(ip->nti, ntin, sizeof(ip->nti) - 1);
- (ip->nti)[sizeof(ip->nti) - 1] = '\0';
- (void)strcpy(ntin, op->nti);
- (void)strncpy(ip->nto, ntout, sizeof(ip->nto) - 1);
- (ip->nto)[sizeof(ip->nto) - 1] = '\0';
- (void)strcpy(ntout, op->nto);
- ip->mapflg = mapflag;
- mapflag = op->mapflg;
- (void)strncpy(ip->mi, mapin, sizeof(ip->mi) - 1);
- (ip->mi)[sizeof(ip->mi) - 1] = '\0';
- (void)strcpy(mapin, op->mi);
- (void)strncpy(ip->mo, mapout, sizeof(ip->mo) - 1);
- (ip->mo)[sizeof(ip->mo) - 1] = '\0';
- (void)strcpy(mapout, op->mo);
- (void)signal(SIGINT, oldintr);
- if (abrtflag) {
- abrtflag = 0;
- (*oldintr)(SIGINT);
- }
-}
-
-void
-abortpt(notused)
- int notused;
-{
-
- alarmtimer(0);
- putchar('\n');
- (void)fflush(stdout);
- ptabflg++;
- mflag = 0;
- abrtflag = 0;
- longjmp(ptabort, 1);
-}
-
-void
-proxtrans(cmd, local, remote)
- const char *cmd, *local, *remote;
-{
- sig_t oldintr;
- int prox_type, nfnd;
- volatile int secndflag;
- char *cmd2;
- fd_set mask;
-
-#ifdef __GNUC__ /* XXX: to shut up gcc warnings */
- (void)&oldintr;
- (void)&cmd2;
-#endif
-
- oldintr = NULL;
- secndflag = 0;
- if (strcmp(cmd, "RETR"))
- cmd2 = "RETR";
- else
- cmd2 = runique ? "STOU" : "STOR";
- if ((prox_type = type) == 0) {
- if (unix_server && unix_proxy)
- prox_type = TYPE_I;
- else
- prox_type = TYPE_A;
- }
- if (curtype != prox_type)
- changetype(prox_type, 1);
- if (try_epsv && command("EPSV") != COMPLETE)
- try_epsv = 0;
- if (!try_epsv && command("PASV") != COMPLETE) {
- puts("proxy server does not support third party transfers.");
- return;
- }
- pswitch(0);
- if (!connected) {
- puts("No primary connection.");
- pswitch(1);
- code = -1;
- return;
- }
- if (curtype != prox_type)
- changetype(prox_type, 1);
- if (command("PORT %s", pasv) != COMPLETE) {
- pswitch(1);
- return;
- }
- if (setjmp(ptabort))
- goto abort;
- oldintr = signal(SIGINT, abortpt);
- if (command("%s %s", cmd, remote) != PRELIM) {
- (void)signal(SIGINT, oldintr);
- pswitch(1);
- return;
- }
- sleep(2);
- pswitch(1);
- secndflag++;
- if (command("%s %s", cmd2, local) != PRELIM)
- goto abort;
- ptflag++;
- (void)getreply(0);
- pswitch(0);
- (void)getreply(0);
- (void)signal(SIGINT, oldintr);
- pswitch(1);
- ptflag = 0;
- printf("local: %s remote: %s\n", local, remote);
- return;
-abort:
- (void)signal(SIGINT, SIG_IGN);
- ptflag = 0;
- if (strcmp(cmd, "RETR") && !proxy)
- pswitch(1);
- else if (!strcmp(cmd, "RETR") && proxy)
- pswitch(0);
- if (!cpend && !secndflag) { /* only here if cmd = "STOR" (proxy=1) */
- if (command("%s %s", cmd2, local) != PRELIM) {
- pswitch(0);
- if (cpend)
- abort_remote((FILE *) NULL);
- }
- pswitch(1);
- if (ptabflg)
- code = -1;
- (void)signal(SIGINT, oldintr);
- return;
- }
- if (cpend)
- abort_remote((FILE *) NULL);
- pswitch(!proxy);
- if (!cpend && !secndflag) { /* only if cmd = "RETR" (proxy=1) */
- if (command("%s %s", cmd2, local) != PRELIM) {
- pswitch(0);
- if (cpend)
- abort_remote((FILE *) NULL);
- pswitch(1);
- if (ptabflg)
- code = -1;
- (void)signal(SIGINT, oldintr);
- return;
- }
- }
- if (cpend)
- abort_remote((FILE *) NULL);
- pswitch(!proxy);
- if (cpend) {
- FD_ZERO(&mask);
- FD_SET(fileno(cin), &mask);
- if ((nfnd = empty(&mask, 10)) <= 0) {
- if (nfnd < 0) {
- warn("abort");
- }
- if (ptabflg)
- code = -1;
- lostpeer();
- }
- (void)getreply(0);
- (void)getreply(0);
- }
- if (proxy)
- pswitch(0);
- pswitch(1);
- if (ptabflg)
- code = -1;
- (void)signal(SIGINT, oldintr);
-}
-
-void
-reset(argc, argv)
- int argc;
- char *argv[];
-{
- fd_set mask;
- int nfnd = 1;
-
- FD_ZERO(&mask);
- while (nfnd > 0) {
- FD_SET(fileno(cin), &mask);
- if ((nfnd = empty(&mask, 0)) < 0) {
- warn("reset");
- code = -1;
- lostpeer();
- }
- else if (nfnd) {
- (void)getreply(0);
- }
- }
-}
-
-char *
-gunique(local)
- const char *local;
-{
- static char new[MAXPATHLEN];
- char *cp = strrchr(local, '/');
- int d, count=0;
- char ext = '1';
-
- if (cp)
- *cp = '\0';
- d = access(cp == local ? "/" : cp ? local : ".", W_OK);
- if (cp)
- *cp = '/';
- if (d < 0) {
- warn("local: %s", local);
- return ((char *) 0);
- }
- (void)strcpy(new, local);
- cp = new + strlen(new);
- *cp++ = '.';
- while (!d) {
- if (++count == 100) {
- puts("runique: can't find unique file name.");
- return ((char *) 0);
- }
- *cp++ = ext;
- *cp = '\0';
- if (ext == '9')
- ext = '0';
- else
- ext++;
- if ((d = access(new, F_OK)) < 0)
- break;
- if (ext != '0')
- cp--;
- else if (*(cp - 2) == '.')
- *(cp - 1) = '1';
- else {
- *(cp - 2) = *(cp - 2) + 1;
- cp--;
- }
- }
- return (new);
-}
-
-void
-abort_remote(din)
- FILE *din;
-{
- char buf[BUFSIZ];
- int nfnd;
- fd_set mask;
-
- if (cout == NULL) {
- warnx("Lost control connection for abort.");
- if (ptabflg)
- code = -1;
- lostpeer();
- return;
- }
- /*
- * send IAC in urgent mode instead of DM because 4.3BSD places oob mark
- * after urgent byte rather than before as is protocol now
- */
- sprintf(buf, "%c%c%c", IAC, IP, IAC);
- if (send(fileno(cout), buf, 3, MSG_OOB) != 3)
- warn("abort");
- fprintf(cout, "%cABOR\r\n", DM);
- (void)fflush(cout);
- FD_ZERO(&mask);
- FD_SET(fileno(cin), &mask);
- if (din) {
- FD_SET(fileno(din), &mask);
- }
- if ((nfnd = empty(&mask, 10)) <= 0) {
- if (nfnd < 0) {
- warn("abort");
- }
- if (ptabflg)
- code = -1;
- lostpeer();
- }
- if (din && FD_ISSET(fileno(din), &mask)) {
- while (read(fileno(din), buf, BUFSIZ) > 0)
- /* LOOP */;
- }
- if (getreply(0) == ERROR && code == 552) {
- /* 552 needed for nic style abort */
- (void)getreply(0);
- }
- (void)getreply(0);
-}
-
-void
-ai_unmapped(ai)
- struct addrinfo *ai;
-{
- struct sockaddr_in6 *sin6;
- struct sockaddr_in sin;
-
- if (ai->ai_family != AF_INET6)
- return;
- if (ai->ai_addrlen != sizeof(struct sockaddr_in6) ||
- sizeof(sin) > ai->ai_addrlen)
- return;
- sin6 = (struct sockaddr_in6 *)ai->ai_addr;
- if (!IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr))
- return;
-
- memset(&sin, 0, sizeof(sin));
- sin.sin_family = AF_INET;
- sin.sin_len = sizeof(struct sockaddr_in);
- memcpy(&sin.sin_addr, &sin6->sin6_addr.s6_addr[12],
- sizeof(sin.sin_addr));
- sin.sin_port = sin6->sin6_port;
-
- ai->ai_family = AF_INET;
- memcpy(ai->ai_addr, &sin, sin.sin_len);
- ai->ai_addrlen = sin.sin_len;
-}
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