diff options
Diffstat (limited to 'bin/rcp')
| -rw-r--r-- | bin/rcp/Makefile | 11 | ||||
| -rw-r--r-- | bin/rcp/Makefile.depend | 18 | ||||
| -rw-r--r-- | bin/rcp/extern.h | 47 | ||||
| -rw-r--r-- | bin/rcp/rcp.1 | 151 | ||||
| -rw-r--r-- | bin/rcp/rcp.c | 791 | ||||
| -rw-r--r-- | bin/rcp/util.c | 159 |
6 files changed, 1177 insertions, 0 deletions
diff --git a/bin/rcp/Makefile b/bin/rcp/Makefile new file mode 100644 index 0000000..886ec01 --- /dev/null +++ b/bin/rcp/Makefile @@ -0,0 +1,11 @@ +# @(#)Makefile 8.1 (Berkeley) 7/19/93 +# $FreeBSD$ + +PROG= rcp +SRCS= rcp.c util.c +CFLAGS+=-DBINDIR=${BINDIR} + +BINOWN= root +BINMODE=4555 + +.include <bsd.prog.mk> diff --git a/bin/rcp/Makefile.depend b/bin/rcp/Makefile.depend new file mode 100644 index 0000000..3646e2e --- /dev/null +++ b/bin/rcp/Makefile.depend @@ -0,0 +1,18 @@ +# $FreeBSD$ +# Autogenerated - do NOT edit! + +DIRDEPS = \ + gnu/lib/csu \ + gnu/lib/libgcc \ + include \ + include/xlocale \ + lib/${CSU_DIR} \ + lib/libc \ + lib/libcompiler_rt \ + + +.include <dirdeps.mk> + +.if ${DEP_RELDIR} == ${_DEP_RELDIR} +# local dependencies - needed for -jN in clean tree +.endif diff --git a/bin/rcp/extern.h b/bin/rcp/extern.h new file mode 100644 index 0000000..db69959 --- /dev/null +++ b/bin/rcp/extern.h @@ -0,0 +1,47 @@ +/*- + * 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. + * 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 8.1 (Berkeley) 5/31/93 + * $FreeBSD$ + */ + +typedef struct { + size_t cnt; + char *buf; +} BUF; + +extern int iamremote; + +BUF *allocbuf(BUF *, int, int); +char *colon(char *); +void lostconn(int); +void nospace(void); +int okname(char *); +void run_err(const char *, ...) __printflike(1, 2); +int susystem(char *, int); +void verifydir(char *); diff --git a/bin/rcp/rcp.1 b/bin/rcp/rcp.1 new file mode 100644 index 0000000..71bdab9 --- /dev/null +++ b/bin/rcp/rcp.1 @@ -0,0 +1,151 @@ +.\"- +.\" Copyright (c) 1983, 1990, 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. +.\" 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. +.\" +.\" @(#)rcp.1 8.1 (Berkeley) 5/31/93 +.\" $FreeBSD$ +.\" +.Dd October 16, 2002 +.Dt RCP 1 +.Os +.Sh NAME +.Nm rcp +.Nd remote file copy +.Sh SYNOPSIS +.Nm +.Op Fl 46p +.Ar file1 file2 +.Nm +.Op Fl 46pr +.Ar +.Ar directory +.Sh DESCRIPTION +The +.Nm +utility copies files between machines. +Each +.Ar file +or +.Ar directory +argument is either a remote file name of the +form +.Dq ruser@rhost:path , +or a local file name (containing no +.Ql :\& +characters, +or a +.Ql / +before any +.Ql :\& Ns +s). +.Pp +The following options are available: +.Bl -tag -width indent +.It Fl 4 +Use IPv4 addresses only. +.It Fl 6 +Use IPv6 addresses only. +.It Fl p +Cause +.Nm +to attempt to preserve (duplicate) in its copies the modification +times and modes of the source files, ignoring the +.Xr umask 2 . +By default, the mode and owner of +.Ar file2 +are preserved if it already existed; otherwise the mode of the source file +modified by the +.Xr umask 2 +on the destination host is used. +.It Fl r +If any of the source files are directories, +.Nm +copies each subtree rooted at that name; in this case +the destination must be a directory. +.El +.Pp +If +.Ar path +is not a full path name, it is interpreted relative to +the login directory of the specified user +.Ar ruser +on +.Ar rhost , +or your current user name if no other remote user name is specified. +A +.Ar path +on a remote host may be quoted (using +.Ql \e , +.Ql \&" , +or +.Ql \(aa ) +so that the metacharacters are interpreted remotely. +.Pp +The +.Nm +utility does not prompt for passwords; it performs remote execution +via +.Xr rsh 1 , +and requires the same authorization. +.Pp +The +.Nm +utility handles third party copies, where neither source nor target files +are on the current machine. +.Sh SEE ALSO +.Xr cp 1 , +.Xr ftp 1 , +.Xr rlogin 1 , +.Xr rsh 1 , +.Xr hosts.equiv 5 +.Sh HISTORY +The +.Nm +command appeared in +.Bx 4.2 . +The version of +.Nm +described here +has been reimplemented with Kerberos in +.Bx 4.3 Reno . +.Sh BUGS +Does not detect all cases where the target of a copy might +be a file in cases where only a directory should be legal. +.Pp +Is confused by any output generated by commands in a +.Pa .login , +.Pa .profile , +or +.Pa .cshrc +file on the remote host. +.Pp +The destination user and hostname may have to be specified as +.Dq rhost.ruser +when the destination machine is running the +.Bx 4.2 +version of +.Nm . diff --git a/bin/rcp/rcp.c b/bin/rcp/rcp.c new file mode 100644 index 0000000..186dde6 --- /dev/null +++ b/bin/rcp/rcp.c @@ -0,0 +1,791 @@ +/*- + * Copyright (c) 1983, 1990, 1992, 1993 + * The Regents of the University of California. All rights reserved. + * Copyright (c) 2002 Networks Associates Technology, Inc. + * All rights reserved. + * + * Portions of this software were developed for the FreeBSD Project by + * ThinkSec AS and NAI Labs, the Security Research Division of Network + * Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035 + * ("CBOSS"), as part of the DARPA CHATS research program. + * + * 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. + * 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. + */ + +#if 0 +#ifndef lint +static char const copyright[] = +"@(#) Copyright (c) 1983, 1990, 1992, 1993\n\ + The Regents of the University of California. All rights reserved.\n"; +#endif /* not lint */ + +#ifndef lint +static char sccsid[] = "@(#)rcp.c 8.2 (Berkeley) 4/2/94"; +#endif /* not lint */ +#endif +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include <sys/param.h> +#include <sys/stat.h> +#include <sys/time.h> +#include <sys/socket.h> +#include <netinet/in.h> +#include <netinet/in_systm.h> +#include <netinet/ip.h> + +#include <ctype.h> +#include <dirent.h> +#include <err.h> +#include <errno.h> +#include <fcntl.h> +#include <limits.h> +#include <netdb.h> +#include <paths.h> +#include <pwd.h> +#include <signal.h> +#include <stdint.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> + +#include "extern.h" + +#define OPTIONS "46dfprt" + +static struct passwd *pwd; +static u_short port; +static uid_t userid; +static int errs, rem; +int iamremote; +static int pflag, iamrecursive, targetshouldbedirectory; +static int family = PF_UNSPEC; + +static int argc_copy; +static const char **argv_copy; + +static char period[] = "."; + +#define CMDNEEDS 64 +static char cmd[CMDNEEDS]; /* must hold "rcp -r -p -d\0" */ + +int response(void); +void rsource(char *, struct stat *); +void sink(int, char *[]); +void source(int, char *[]); +void tolocal(int, char *[]); +void toremote(char *, int, char *[]); +void usage(void); + +int +main(int argc, char *argv[]) +{ + struct servent *sp; + int ch, fflag, i, tflag; + char *targ; + + /* + * Prepare for execing ourselves. + */ + argc_copy = argc + 1; + argv_copy = malloc((argc_copy + 1) * sizeof(*argv_copy)); + if (argv_copy == NULL) + err(1, "malloc"); + argv_copy[0] = argv[0]; + argv_copy[1] = "-K"; + for (i = 1; i < argc; ++i) { + argv_copy[i + 1] = strdup(argv[i]); + if (argv_copy[i + 1] == NULL) + errx(1, "strdup: out of memory"); + } + argv_copy[argc + 1] = NULL; + + fflag = tflag = 0; + while ((ch = getopt(argc, argv, OPTIONS)) != -1) + switch(ch) { /* User-visible flags. */ + case '4': + family = PF_INET; + break; + + case '6': + family = PF_INET6; + break; + + case 'p': + pflag = 1; + break; + case 'r': + iamrecursive = 1; + break; + /* Server options. */ + case 'd': + targetshouldbedirectory = 1; + break; + case 'f': /* "from" */ + iamremote = 1; + fflag = 1; + break; + case 't': /* "to" */ + iamremote = 1; + tflag = 1; + break; + case '?': + default: + usage(); + } + argc -= optind; + argv += optind; + + sp = getservbyname("shell", "tcp"); + if (sp == NULL) + errx(1, "shell/tcp: unknown service"); + port = sp->s_port; + + if ((pwd = getpwuid(userid = getuid())) == NULL) + errx(1, "unknown user %d", (int)userid); + + rem = STDIN_FILENO; /* XXX */ + + if (fflag) { /* Follow "protocol", send data. */ + (void)response(); + (void)setuid(userid); + source(argc, argv); + exit(errs); + } + + if (tflag) { /* Receive data. */ + (void)setuid(userid); + sink(argc, argv); + exit(errs); + } + + if (argc < 2) + usage(); + if (argc > 2) + targetshouldbedirectory = 1; + + rem = -1; + /* Command to be executed on remote system using "rsh". */ + (void)snprintf(cmd, sizeof(cmd), "rcp%s%s%s", + iamrecursive ? " -r" : "", pflag ? " -p" : "", + targetshouldbedirectory ? " -d" : ""); + + (void)signal(SIGPIPE, lostconn); + + if ((targ = colon(argv[argc - 1]))) /* Dest is remote host. */ + toremote(targ, argc, argv); + else { + tolocal(argc, argv); /* Dest is local host. */ + if (targetshouldbedirectory) + verifydir(argv[argc - 1]); + } + exit(errs); +} + +void +toremote(char *targ, int argc, char *argv[]) +{ + int i, tos; + char *bp, *host, *src, *suser, *thost, *tuser; + + *targ++ = 0; + if (*targ == 0) + targ = period; + + if ((thost = strchr(argv[argc - 1], '@'))) { + /* user@host */ + *thost++ = 0; + tuser = argv[argc - 1]; + if (*tuser == '\0') + tuser = NULL; + else if (!okname(tuser)) + exit(1); + } else { + thost = argv[argc - 1]; + tuser = NULL; + } + + for (i = 0; i < argc - 1; i++) { + src = colon(argv[i]); + if (src) { /* remote to remote */ + *src++ = 0; + if (*src == 0) + src = period; + host = strchr(argv[i], '@'); + if (host) { + *host++ = 0; + suser = argv[i]; + if (*suser == '\0') + suser = pwd->pw_name; + else if (!okname(suser)) { + ++errs; + continue; + } + if (asprintf(&bp, + "%s %s -l %s -n %s %s '%s%s%s:%s'", + _PATH_RSH, host, suser, cmd, src, + tuser ? tuser : "", tuser ? "@" : "", + thost, targ) == -1) + err(1, "asprintf"); + } else + if (asprintf(&bp, + "exec %s %s -n %s %s '%s%s%s:%s'", + _PATH_RSH, argv[i], cmd, src, + tuser ? tuser : "", tuser ? "@" : "", + thost, targ) == -1) + err(1, "asprintf"); + (void)susystem(bp, userid); + (void)free(bp); + } else { /* local to remote */ + if (rem == -1) { + if (asprintf(&bp, "%s -t %s", cmd, targ) + == -1) + err(1, "asprintf"); + host = thost; + rem = rcmd_af(&host, port, + pwd->pw_name, + tuser ? tuser : pwd->pw_name, + bp, 0, family); + if (rem < 0) + exit(1); + if (family == PF_INET) { + tos = IPTOS_THROUGHPUT; + if (setsockopt(rem, IPPROTO_IP, IP_TOS, + &tos, sizeof(int)) < 0) + warn("TOS (ignored)"); + } + if (response() < 0) + exit(1); + (void)free(bp); + (void)setuid(userid); + } + source(1, argv+i); + } + } +} + +void +tolocal(int argc, char *argv[]) +{ + int i, len, tos; + char *bp, *host, *src, *suser; + + for (i = 0; i < argc - 1; i++) { + if (!(src = colon(argv[i]))) { /* Local to local. */ + len = strlen(_PATH_CP) + strlen(argv[i]) + + strlen(argv[argc - 1]) + 20; + if (!(bp = malloc(len))) + err(1, "malloc"); + (void)snprintf(bp, len, "exec %s%s%s %s %s", _PATH_CP, + iamrecursive ? " -PR" : "", pflag ? " -p" : "", + argv[i], argv[argc - 1]); + if (susystem(bp, userid)) + ++errs; + (void)free(bp); + continue; + } + *src++ = 0; + if (*src == 0) + src = period; + if ((host = strchr(argv[i], '@')) == NULL) { + host = argv[i]; + suser = pwd->pw_name; + } else { + *host++ = 0; + suser = argv[i]; + if (*suser == '\0') + suser = pwd->pw_name; + else if (!okname(suser)) { + ++errs; + continue; + } + } + len = strlen(src) + CMDNEEDS + 20; + if ((bp = malloc(len)) == NULL) + err(1, "malloc"); + (void)snprintf(bp, len, "%s -f %s", cmd, src); + rem = rcmd_af(&host, port, pwd->pw_name, suser, bp, 0, + family); + (void)free(bp); + if (rem < 0) { + ++errs; + continue; + } + (void)seteuid(userid); + if (family == PF_INET) { + tos = IPTOS_THROUGHPUT; + if (setsockopt(rem, IPPROTO_IP, IP_TOS, &tos, + sizeof(int)) < 0) + warn("TOS (ignored)"); + } + sink(1, argv + argc - 1); + (void)seteuid(0); + (void)close(rem); + rem = -1; + } +} + +void +source(int argc, char *argv[]) +{ + struct stat stb; + static BUF buffer; + BUF *bp; + off_t i; + int amt, fd, haderr, indx, result; + char *last, *name, buf[BUFSIZ]; + + for (indx = 0; indx < argc; ++indx) { + name = argv[indx]; + if ((fd = open(name, O_RDONLY, 0)) < 0) + goto syserr; + if (fstat(fd, &stb)) { +syserr: run_err("%s: %s", name, strerror(errno)); + goto next; + } + switch (stb.st_mode & S_IFMT) { + case S_IFREG: + break; + case S_IFDIR: + if (iamrecursive) { + rsource(name, &stb); + goto next; + } + /* FALLTHROUGH */ + default: + run_err("%s: not a regular file", name); + goto next; + } + if ((last = strrchr(name, '/')) == NULL) + last = name; + else + ++last; + if (pflag) { + /* + * Make it compatible with possible future + * versions expecting microseconds. + */ + (void)snprintf(buf, sizeof(buf), "T%ld 0 %ld 0\n", + (long)stb.st_mtim.tv_sec, + (long)stb.st_atim.tv_sec); + (void)write(rem, buf, strlen(buf)); + if (response() < 0) + goto next; + } +#define MODEMASK (S_ISUID|S_ISGID|S_ISTXT|S_IRWXU|S_IRWXG|S_IRWXO) + (void)snprintf(buf, sizeof(buf), "C%04o %jd %s\n", + stb.st_mode & MODEMASK, (intmax_t)stb.st_size, last); + (void)write(rem, buf, strlen(buf)); + if (response() < 0) + goto next; + if ((bp = allocbuf(&buffer, fd, BUFSIZ)) == NULL) { +next: if (fd >= 0) + (void)close(fd); + continue; + } + + /* Keep writing after an error so that we stay sync'd up. */ + for (haderr = i = 0; i < stb.st_size; i += bp->cnt) { + amt = bp->cnt; + if (i + amt > stb.st_size) + amt = stb.st_size - i; + if (!haderr) { + result = read(fd, bp->buf, amt); + if (result != amt) + haderr = result >= 0 ? EIO : errno; + } + if (haderr) + (void)write(rem, bp->buf, amt); + else { + result = write(rem, bp->buf, amt); + if (result != amt) + haderr = result >= 0 ? EIO : errno; + } + } + if (close(fd) && !haderr) + haderr = errno; + if (!haderr) + (void)write(rem, "", 1); + else + run_err("%s: %s", name, strerror(haderr)); + (void)response(); + } +} + +void +rsource(char *name, struct stat *statp) +{ + DIR *dirp; + struct dirent *dp; + char *last, *vect[1], path[PATH_MAX]; + + if (!(dirp = opendir(name))) { + run_err("%s: %s", name, strerror(errno)); + return; + } + last = strrchr(name, '/'); + if (last == 0) + last = name; + else + last++; + if (pflag) { + (void)snprintf(path, sizeof(path), "T%ld 0 %ld 0\n", + (long)statp->st_mtim.tv_sec, + (long)statp->st_atim.tv_sec); + (void)write(rem, path, strlen(path)); + if (response() < 0) { + closedir(dirp); + return; + } + } + (void)snprintf(path, sizeof(path), + "D%04o %d %s\n", statp->st_mode & MODEMASK, 0, last); + (void)write(rem, path, strlen(path)); + if (response() < 0) { + closedir(dirp); + return; + } + while ((dp = readdir(dirp))) { + if (dp->d_ino == 0) + continue; + if (!strcmp(dp->d_name, ".") || !strcmp(dp->d_name, "..")) + continue; + if (strlen(name) + 1 + strlen(dp->d_name) >= sizeof(path)) { + run_err("%s/%s: name too long", name, dp->d_name); + continue; + } + (void)snprintf(path, sizeof(path), "%s/%s", name, dp->d_name); + vect[0] = path; + source(1, vect); + } + (void)closedir(dirp); + (void)write(rem, "E\n", 2); + (void)response(); +} + +void +sink(int argc, char *argv[]) +{ + static BUF buffer; + struct stat stb; + struct timeval tv[2]; + enum { YES, NO, DISPLAYED } wrerr; + BUF *bp; + off_t i, j, size; + int amt, exists, first, mask, mode, ofd, omode; + size_t count; + int setimes, targisdir, wrerrno = 0; + char ch, *cp, *np, *targ, *vect[1], buf[BUFSIZ], path[PATH_MAX]; + const char *why; + +#define atime tv[0] +#define mtime tv[1] +#define SCREWUP(str) { why = str; goto screwup; } + + setimes = targisdir = 0; + mask = umask(0); + if (!pflag) + (void)umask(mask); + if (argc != 1) { + run_err("ambiguous target"); + exit(1); + } + targ = *argv; + if (targetshouldbedirectory) + verifydir(targ); + (void)write(rem, "", 1); + if (stat(targ, &stb) == 0 && S_ISDIR(stb.st_mode)) + targisdir = 1; + for (first = 1;; first = 0) { + cp = buf; + if (read(rem, cp, 1) <= 0) + return; + if (*cp++ == '\n') + SCREWUP("unexpected <newline>"); + do { + if (read(rem, &ch, sizeof(ch)) != sizeof(ch)) + SCREWUP("lost connection"); + *cp++ = ch; + } while (cp < &buf[BUFSIZ - 1] && ch != '\n'); + *cp = 0; + + if (buf[0] == '\01' || buf[0] == '\02') { + if (iamremote == 0) + (void)write(STDERR_FILENO, + buf + 1, strlen(buf + 1)); + if (buf[0] == '\02') + exit(1); + ++errs; + continue; + } + if (buf[0] == 'E') { + (void)write(rem, "", 1); + return; + } + + if (ch == '\n') + *--cp = 0; + + cp = buf; + if (*cp == 'T') { + setimes++; + cp++; + mtime.tv_sec = strtol(cp, &cp, 10); + if (!cp || *cp++ != ' ') + SCREWUP("mtime.sec not delimited"); + mtime.tv_usec = strtol(cp, &cp, 10); + if (!cp || *cp++ != ' ') + SCREWUP("mtime.usec not delimited"); + atime.tv_sec = strtol(cp, &cp, 10); + if (!cp || *cp++ != ' ') + SCREWUP("atime.sec not delimited"); + atime.tv_usec = strtol(cp, &cp, 10); + if (!cp || *cp++ != '\0') + SCREWUP("atime.usec not delimited"); + (void)write(rem, "", 1); + continue; + } + if (*cp != 'C' && *cp != 'D') { + /* + * Check for the case "rcp remote:foo\* local:bar". + * In this case, the line "No match." can be returned + * by the shell before the rcp command on the remote is + * executed so the ^Aerror_message convention isn't + * followed. + */ + if (first) { + run_err("%s", cp); + exit(1); + } + SCREWUP("expected control record"); + } + mode = 0; + for (++cp; cp < buf + 5; cp++) { + if (*cp < '0' || *cp > '7') + SCREWUP("bad mode"); + mode = (mode << 3) | (*cp - '0'); + } + if (*cp++ != ' ') + SCREWUP("mode not delimited"); + + for (size = 0; isdigit(*cp);) + size = size * 10 + (*cp++ - '0'); + if (*cp++ != ' ') + SCREWUP("size not delimited"); + if (targisdir) { + if (strlen(targ) + (*targ ? 1 : 0) + strlen(cp) + >= sizeof(path)) { + run_err("%s%s%s: name too long", targ, + *targ ? "/" : "", cp); + exit(1); + } + (void)snprintf(path, sizeof(path), "%s%s%s", targ, + *targ ? "/" : "", cp); + np = path; + } else + np = targ; + exists = stat(np, &stb) == 0; + if (buf[0] == 'D') { + int mod_flag = pflag; + if (exists) { + if (!S_ISDIR(stb.st_mode)) { + errno = ENOTDIR; + goto bad; + } + if (pflag) + (void)chmod(np, mode); + } else { + /* Handle copying from a read-only directory */ + mod_flag = 1; + if (mkdir(np, mode | S_IRWXU) < 0) + goto bad; + } + vect[0] = np; + sink(1, vect); + if (setimes) { + setimes = 0; + if (utimes(np, tv) < 0) + run_err("%s: set times: %s", + np, strerror(errno)); + } + if (mod_flag) + (void)chmod(np, mode); + continue; + } + omode = mode; + mode |= S_IWRITE; + if ((ofd = open(np, O_WRONLY|O_CREAT, mode)) < 0) { +bad: run_err("%s: %s", np, strerror(errno)); + continue; + } + (void)write(rem, "", 1); + if ((bp = allocbuf(&buffer, ofd, BUFSIZ)) == NULL) { + (void)close(ofd); + continue; + } + cp = bp->buf; + wrerr = NO; + for (count = i = 0; i < size; i += BUFSIZ) { + amt = BUFSIZ; + if (i + amt > size) + amt = size - i; + count += amt; + do { + j = read(rem, cp, amt); + if (j <= 0) { + run_err("%s", j ? strerror(errno) : + "dropped connection"); + exit(1); + } + amt -= j; + cp += j; + } while (amt > 0); + if (count == bp->cnt) { + /* Keep reading so we stay sync'd up. */ + if (wrerr == NO) { + j = write(ofd, bp->buf, count); + if (j != (off_t)count) { + wrerr = YES; + wrerrno = j >= 0 ? EIO : errno; + } + } + count = 0; + cp = bp->buf; + } + } + if (count != 0 && wrerr == NO && + (j = write(ofd, bp->buf, count)) != (off_t)count) { + wrerr = YES; + wrerrno = j >= 0 ? EIO : errno; + } + if (ftruncate(ofd, size)) { + run_err("%s: truncate: %s", np, strerror(errno)); + wrerr = DISPLAYED; + } + if (pflag) { + if (exists || omode != mode) + if (fchmod(ofd, omode)) + run_err("%s: set mode: %s", + np, strerror(errno)); + } else { + if (!exists && omode != mode) + if (fchmod(ofd, omode & ~mask)) + run_err("%s: set mode: %s", + np, strerror(errno)); + } + (void)close(ofd); + (void)response(); + if (setimes && wrerr == NO) { + setimes = 0; + if (utimes(np, tv) < 0) { + run_err("%s: set times: %s", + np, strerror(errno)); + wrerr = DISPLAYED; + } + } + switch(wrerr) { + case YES: + run_err("%s: %s", np, strerror(wrerrno)); + break; + case NO: + (void)write(rem, "", 1); + break; + case DISPLAYED: + break; + } + } +screwup: + run_err("protocol error: %s", why); + exit(1); +} + +int +response(void) +{ + char ch, *cp, resp, rbuf[BUFSIZ]; + + if (read(rem, &resp, sizeof(resp)) != sizeof(resp)) + lostconn(0); + + cp = rbuf; + switch(resp) { + case 0: /* ok */ + return (0); + default: + *cp++ = resp; + /* FALLTHROUGH */ + case 1: /* error, followed by error msg */ + case 2: /* fatal error, "" */ + do { + if (read(rem, &ch, sizeof(ch)) != sizeof(ch)) + lostconn(0); + *cp++ = ch; + } while (cp < &rbuf[BUFSIZ] && ch != '\n'); + + if (!iamremote) + (void)write(STDERR_FILENO, rbuf, cp - rbuf); + ++errs; + if (resp == 1) + return (-1); + exit(1); + } + /* NOTREACHED */ +} + +void +usage(void) +{ + (void)fprintf(stderr, "%s\n%s\n", + "usage: rcp [-46p] file1 file2", + " rcp [-46pr] file ... directory"); + exit(1); +} + +#include <stdarg.h> + +void +run_err(const char *fmt, ...) +{ + static FILE *fp; + va_list ap; + + ++errs; + if (fp == NULL && !(fp = fdopen(rem, "w"))) + return; + (void)fprintf(fp, "%c", 0x01); + (void)fprintf(fp, "rcp: "); + va_start(ap, fmt); + (void)vfprintf(fp, fmt, ap); + va_end(ap); + (void)fprintf(fp, "\n"); + (void)fflush(fp); + + if (!iamremote) { + va_start(ap, fmt); + vwarnx(fmt, ap); + va_end(ap); + } +} diff --git a/bin/rcp/util.c b/bin/rcp/util.c new file mode 100644 index 0000000..3296fe0 --- /dev/null +++ b/bin/rcp/util.c @@ -0,0 +1,159 @@ +/*- + * 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. + * 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. + */ + +#ifndef lint +#if 0 +static const char sccsid[] = "@(#)util.c 8.2 (Berkeley) 4/2/94"; +#endif +#endif /* not lint */ +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include <sys/param.h> +#include <sys/stat.h> +#include <sys/wait.h> + +#include <ctype.h> +#include <err.h> +#include <errno.h> +#include <paths.h> +#include <signal.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> + +#include "extern.h" + +char * +colon(char *cp) +{ + if (*cp == ':') /* Leading colon is part of file name. */ + return (0); + + for (; *cp; ++cp) { + if (*cp == ':') + return (cp); + if (*cp == '/') + return (0); + } + return (0); +} + +void +verifydir(char *cp) +{ + struct stat stb; + + if (!stat(cp, &stb)) { + if (S_ISDIR(stb.st_mode)) + return; + errno = ENOTDIR; + } + run_err("%s: %s", cp, strerror(errno)); + exit(1); +} + +int +okname(char *cp0) +{ + int c; + char *cp; + + cp = cp0; + do { + c = *cp; + if (c & 0200) + goto bad; + if (!isalpha(c) && !isdigit(c) && c != '_' && c != '-' && c != '.') + goto bad; + } while (*++cp); + return (1); + +bad: warnx("%s: invalid user name", cp0); + return (0); +} + +int +susystem(char *s, int userid) +{ + sig_t istat, qstat; + int status; + pid_t pid; + + pid = vfork(); + switch (pid) { + case -1: + return (127); + + case 0: + (void)setuid(userid); + execl(_PATH_BSHELL, "sh", "-c", s, (char *)NULL); + _exit(127); + } + istat = signal(SIGINT, SIG_IGN); + qstat = signal(SIGQUIT, SIG_IGN); + if (waitpid(pid, &status, 0) < 0) + status = -1; + (void)signal(SIGINT, istat); + (void)signal(SIGQUIT, qstat); + return (status); +} + +BUF * +allocbuf(BUF *bp, int fd, int blksize) +{ + struct stat stb; + size_t size; + + if (fstat(fd, &stb) < 0) { + run_err("fstat: %s", strerror(errno)); + return (0); + } + size = roundup(stb.st_blksize, blksize); + if (size == 0) + size = blksize; + if (bp->cnt >= size) + return (bp); + if ((bp->buf = realloc(bp->buf, size)) == NULL) { + bp->cnt = 0; + run_err("%s", strerror(errno)); + return (0); + } + bp->cnt = size; + return (bp); +} + +void +lostconn(int signo __unused) +{ + if (!iamremote) + warnx("lost connection"); + exit(1); +} |
