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Text File | 1993-01-03 | 21.0 KB | 1,010 lines |
- head 1.1;
- branch ;
- access ;
- symbols ;
- locks shirriff:1.1; strict;
- comment @ * @;
-
-
- 1.1
- date 93.01.03.00.18.44; author shirriff; state Exp;
- branches ;
- next ;
-
-
- desc
- @@
-
-
-
- 1.1
- log
- @Initial revision
- @
- text
- @/*
- * Copyright (c) 1983, 1990 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.
- */
-
- #ifndef lint
- char copyright[] =
- "@@(#) Copyright (c) 1983, 1990 The Regents of the University of California.\n\
- All rights reserved.\n";
- #endif /* not lint */
-
- #ifndef lint
- static char sccsid[] = "@@(#)rcp.c 5.32 (Berkeley) 2/25/91";
- #endif /* not lint */
-
- /*
- * rcp
- */
- #include <sys/param.h>
- #include <sys/stat.h>
- #include <sys/time.h>
- #include <sys/ioctl.h>
- #include <sys/socket.h>
- #include <sys/wait.h>
- #include <netinet/in.h>
- #include <netinet/in_systm.h>
- #include <netinet/ip.h>
- #include <dirent.h>
- #include <fcntl.h>
- #include <signal.h>
- #include <pwd.h>
- #include <netdb.h>
- #include <errno.h>
- #include <unistd.h>
- #include <stdio.h>
- #include <stdlib.h>
- #include <string.h>
- #include <ctype.h>
- #include "pathnames.h"
-
- #ifdef KERBEROS
- #include <kerberosIV/des.h>
- #include <kerberosIV/krb.h>
- char dst_realm_buf[REALM_SZ];
- char *dest_realm = NULL;
- int use_kerberos = 1;
- CREDENTIALS cred;
- Key_schedule schedule;
- extern char *krb_realmofhost();
- #ifdef CRYPT
- int doencrypt = 0;
- #define OPTIONS "dfk:prtx"
- #else
- #define OPTIONS "dfk:prt"
- #endif
- #else
- #define OPTIONS "dfprt"
- #endif
-
- struct passwd *pwd;
- u_short port;
- uid_t userid;
- int errs, rem;
- int pflag, iamremote, iamrecursive, targetshouldbedirectory;
-
- #define CMDNEEDS 64
- char cmd[CMDNEEDS]; /* must hold "rcp -r -p -d\0" */
-
- typedef struct _buf {
- int cnt;
- char *buf;
- } BUF;
-
- void lostconn();
-
- main(argc, argv)
- int argc;
- char **argv;
- {
- extern int optind;
- extern char *optarg;
- struct servent *sp;
- int ch, fflag, tflag;
- char *targ, *shell, *colon();
-
- fflag = tflag = 0;
- while ((ch = getopt(argc, argv, OPTIONS)) != EOF)
- switch(ch) {
- /* user-visible flags */
- case 'p': /* preserve access/mod times */
- ++pflag;
- break;
- case 'r':
- ++iamrecursive;
- break;
- #ifdef KERBEROS
- case 'k':
- strncpy(dst_realm_buf, optarg, REALM_SZ);
- dest_realm = dst_realm_buf;
- break;
- #ifdef CRYPT
- case 'x':
- doencrypt = 1;
- /* des_set_key(cred.session, schedule); */
- break;
- #endif
- #endif
- /* rshd-invoked options (server) */
- 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;
-
- #ifdef KERBEROS
- #ifdef CRYPT
- shell = doencrypt ? "ekshell" : "kshell";
- #else
- shell = "kshell";
- #endif
- sp = getservbyname(shell, "tcp");
- if (sp == NULL) {
- char msgbuf[64];
- use_kerberos = 0;
- (void)snprintf(msgbuf, sizeof(msgbuf),
- "can't get entry for %s/tcp service", shell);
- old_warning(msgbuf);
- sp = getservbyname(shell = "shell", "tcp");
- }
- #else
- sp = getservbyname(shell = "shell", "tcp");
- #endif
- if (sp == NULL) {
- (void)fprintf(stderr, "rcp: %s/tcp: unknown service\n", shell);
- exit(1);
- }
- port = sp->s_port;
-
- if (!(pwd = getpwuid(userid = getuid()))) {
- (void)fprintf(stderr, "rcp: unknown user %d.\n", (int)userid);
- exit(1);
- }
-
- 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" */
- #ifdef KERBEROS
- (void)snprintf(cmd, sizeof(cmd),
- "rcp%s%s%s%s", iamrecursive ? " -r" : "",
- #ifdef CRYPT
- ((doencrypt && use_kerberos) ? " -x" : ""),
- #else
- "",
- #endif
- pflag ? " -p" : "", targetshouldbedirectory ? " -d" : "");
- #else
- (void)snprintf(cmd, sizeof(cmd), "rcp%s%s%s",
- iamrecursive ? " -r" : "", pflag ? " -p" : "",
- targetshouldbedirectory ? " -d" : "");
- #endif
-
- (void)signal(SIGPIPE, lostconn);
-
- if (targ = colon(argv[argc - 1]))
- toremote(targ, argc, argv); /* destination is remote host */
- else {
- tolocal(argc, argv); /* destination is local host */
- if (targetshouldbedirectory)
- verifydir(argv[argc - 1]);
- }
- exit(errs);
- }
-
- toremote(targ, argc, argv)
- char *targ;
- int argc;
- char **argv;
- {
- int i, len, tos;
- char *bp, *host, *src, *suser, *thost, *tuser;
- char *colon();
-
- *targ++ = 0;
- if (*targ == 0)
- targ = ".";
-
- if (thost = index(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 = ".";
- host = index(argv[i], '@@');
- len = strlen(_PATH_RSH) + strlen(argv[i]) +
- strlen(src) + (tuser ? strlen(tuser) : 0) +
- strlen(thost) + strlen(targ) + CMDNEEDS + 20;
- if (!(bp = malloc(len)))
- nospace();
- if (host) {
- *host++ = 0;
- suser = argv[i];
- if (*suser == '\0')
- suser = pwd->pw_name;
- else if (!okname(suser))
- continue;
- (void)snprintf(bp, len,
- "%s %s -l %s -n %s %s '%s%s%s:%s'",
- _PATH_RSH, host, suser, cmd, src,
- tuser ? tuser : "", tuser ? "@@" : "",
- thost, targ);
- } else
- (void)snprintf(bp, len,
- "%s %s -n %s %s '%s%s%s:%s'",
- _PATH_RSH, argv[i], cmd, src,
- tuser ? tuser : "", tuser ? "@@" : "",
- thost, targ);
- (void)susystem(bp);
- (void)free(bp);
- } else { /* local to remote */
- if (rem == -1) {
- len = strlen(targ) + CMDNEEDS + 20;
- if (!(bp = malloc(len)))
- nospace();
- (void)snprintf(bp, len, "%s -t %s", cmd, targ);
- host = thost;
- #ifdef KERBEROS
- if (use_kerberos)
- rem = kerberos(&host, bp,
- pwd->pw_name,
- tuser ? tuser : pwd->pw_name);
- else
- #endif
- rem = rcmd(&host, port, pwd->pw_name,
- tuser ? tuser : pwd->pw_name,
- bp, 0);
- if (rem < 0)
- exit(1);
- tos = IPTOS_THROUGHPUT;
- if (setsockopt(rem, IPPROTO_IP, IP_TOS,
- (char *)&tos, sizeof(int)) < 0)
- perror("rcp: setsockopt TOS (ignored)");
- if (response() < 0)
- exit(1);
- (void)free(bp);
- (void)setuid(userid);
- }
- source(1, argv+i);
- }
- }
- }
-
- tolocal(argc, argv)
- int argc;
- char **argv;
- {
- int i, len, tos;
- char *bp, *host, *src, *suser;
- char *colon();
-
- 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)))
- nospace();
- (void)snprintf(bp, len, "%s%s%s %s %s", _PATH_CP,
- iamrecursive ? " -r" : "", pflag ? " -p" : "",
- argv[i], argv[argc - 1]);
- (void)susystem(bp);
- (void)free(bp);
- continue;
- }
- *src++ = 0;
- if (*src == 0)
- src = ".";
- host = index(argv[i], '@@');
- if (host) {
- *host++ = 0;
- suser = argv[i];
- if (*suser == '\0')
- suser = pwd->pw_name;
- else if (!okname(suser))
- continue;
- } else {
- host = argv[i];
- suser = pwd->pw_name;
- }
- len = strlen(src) + CMDNEEDS + 20;
- if (!(bp = malloc(len)))
- nospace();
- (void)snprintf(bp, len, "%s -f %s", cmd, src);
- #ifdef KERBEROS
- if (use_kerberos)
- rem = kerberos(&host, bp, pwd->pw_name, suser);
- else
- #endif
- rem = rcmd(&host, port, pwd->pw_name, suser, bp, 0);
- (void)free(bp);
- if (rem < 0)
- continue;
- (void)seteuid(userid);
- tos = IPTOS_THROUGHPUT;
- if (setsockopt(rem, IPPROTO_IP, IP_TOS,
- (char *)&tos, sizeof(int)) < 0)
- perror("rcp: setsockopt TOS (ignored)");
- sink(1, argv + argc - 1);
- (void)seteuid(0);
- (void)close(rem);
- rem = -1;
- }
- }
-
- verifydir(cp)
- char *cp;
- {
- struct stat stb;
-
- if (stat(cp, &stb) >= 0) {
- if ((stb.st_mode & S_IFMT) == S_IFDIR)
- return;
- errno = ENOTDIR;
- }
- error("rcp: %s: %s.\n", cp, strerror(errno));
- exit(1);
- }
-
- char *
- colon(cp)
- register char *cp;
- {
- for (; *cp; ++cp) {
- if (*cp == ':')
- return(cp);
- if (*cp == '/')
- return(0);
- }
- return(0);
- }
-
- okname(cp0)
- char *cp0;
- {
- register char *cp = cp0;
- register int c;
-
- do {
- c = *cp;
- if (c & 0200)
- goto bad;
- if (!isalpha(c) && !isdigit(c) && c != '_' && c != '-')
- goto bad;
- } while (*++cp);
- return(1);
- bad:
- (void)fprintf(stderr, "rcp: invalid user name %s\n", cp0);
- return(0);
- }
-
- susystem(s)
- char *s;
- {
- int status, pid, w;
- register sig_t istat, qstat;
-
- if ((pid = vfork()) == 0) {
- (void)setuid(userid);
- execl(_PATH_BSHELL, "sh", "-c", s, (char *)0);
- _exit(127);
- }
- istat = signal(SIGINT, SIG_IGN);
- qstat = signal(SIGQUIT, SIG_IGN);
- while ((w = wait(&status)) != pid && w != -1)
- ;
- if (w == -1)
- status = -1;
- (void)signal(SIGINT, istat);
- (void)signal(SIGQUIT, qstat);
- return(status);
- }
-
- source(argc, argv)
- int argc;
- char **argv;
- {
- struct stat stb;
- static BUF buffer;
- BUF *bp;
- off_t i;
- int x, readerr, f, amt;
- char *last, *name, buf[BUFSIZ];
- BUF *allocbuf();
-
- for (x = 0; x < argc; x++) {
- name = argv[x];
- if ((f = open(name, O_RDONLY, 0)) < 0) {
- error("rcp: %s: %s\n", name, strerror(errno));
- continue;
- }
- if (fstat(f, &stb) < 0)
- goto notreg;
- switch (stb.st_mode&S_IFMT) {
-
- case S_IFREG:
- break;
-
- case S_IFDIR:
- if (iamrecursive) {
- (void)close(f);
- rsource(name, &stb);
- continue;
- }
- /* FALLTHROUGH */
- default:
- notreg: (void)close(f);
- error("rcp: %s: not a plain file\n", name);
- continue;
- }
- last = rindex(name, '/');
- if (last == 0)
- 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", stb.st_mtime, stb.st_atime);
- (void)write(rem, buf, (int)strlen(buf));
- if (response() < 0) {
- (void)close(f);
- continue;
- }
- }
- (void)snprintf(buf, sizeof(buf),
- "C%04o %ld %s\n", stb.st_mode&07777, stb.st_size, last);
- (void)write(rem, buf, (int)strlen(buf));
- if (response() < 0) {
- (void)close(f);
- continue;
- }
- if ((bp = allocbuf(&buffer, f, BUFSIZ)) == 0) {
- (void)close(f);
- continue;
- }
- readerr = 0;
- for (i = 0; i < stb.st_size; i += bp->cnt) {
- amt = bp->cnt;
- if (i + amt > stb.st_size)
- amt = stb.st_size - i;
- if (readerr == 0 && read(f, bp->buf, amt) != amt)
- readerr = errno;
- (void)write(rem, bp->buf, amt);
- }
- (void)close(f);
- if (readerr == 0)
- (void)write(rem, "", 1);
- else
- error("rcp: %s: %s\n", name, strerror(readerr));
- (void)response();
- }
- }
-
- rsource(name, statp)
- char *name;
- struct stat *statp;
- {
- DIR *dirp;
- struct dirent *dp;
- char *last, *vect[1], path[MAXPATHLEN];
-
- if (!(dirp = opendir(name))) {
- error("rcp: %s: %s\n", name, strerror(errno));
- return;
- }
- last = rindex(name, '/');
- if (last == 0)
- last = name;
- else
- last++;
- if (pflag) {
- (void)snprintf(path, sizeof(path),
- "T%ld 0 %ld 0\n", statp->st_mtime, statp->st_atime);
- (void)write(rem, path, (int)strlen(path));
- if (response() < 0) {
- closedir(dirp);
- return;
- }
- }
- (void)snprintf(path, sizeof(path),
- "D%04o %d %s\n", statp->st_mode&07777, 0, last);
- (void)write(rem, path, (int)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) >= MAXPATHLEN - 1) {
- error("%s/%s: name too long.\n", name, dp->d_name);
- continue;
- }
- (void)snprintf(path, sizeof(path), "%s/%s", name, dp->d_name);
- vect[0] = path;
- source(1, vect);
- }
- closedir(dirp);
- (void)write(rem, "E\n", 2);
- (void)response();
- }
-
- response()
- {
- register char *cp;
- char ch, resp, rbuf[BUFSIZ];
-
- if (read(rem, &resp, sizeof(resp)) != sizeof(resp))
- lostconn();
-
- cp = rbuf;
- switch(resp) {
- case 0: /* ok */
- return(0);
- default:
- *cp++ = resp;
- /* FALLTHROUGH */
- case 1: /* error, followed by err msg */
- case 2: /* fatal error, "" */
- do {
- if (read(rem, &ch, sizeof(ch)) != sizeof(ch))
- lostconn();
- *cp++ = ch;
- } while (cp < &rbuf[BUFSIZ] && ch != '\n');
-
- if (!iamremote)
- (void)write(2, rbuf, cp - rbuf);
- ++errs;
- if (resp == 1)
- return(-1);
- exit(1);
- }
- /*NOTREACHED*/
- }
-
- void
- lostconn()
- {
- if (!iamremote)
- (void)fprintf(stderr, "rcp: lost connection\n");
- exit(1);
- }
-
- sink(argc, argv)
- int argc;
- char **argv;
- {
- register char *cp;
- static BUF buffer;
- struct stat stb;
- struct timeval tv[2];
- enum { YES, NO, DISPLAYED } wrerr;
- BUF *bp, *allocbuf();
- off_t i, j;
- char ch, *targ, *why;
- int amt, count, exists, first, mask, mode;
- int ofd, setimes, size, targisdir;
- char *np, *vect[1], buf[BUFSIZ];
-
- #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) {
- error("rcp: ambiguous target\n");
- exit(1);
- }
- targ = *argv;
- if (targetshouldbedirectory)
- verifydir(targ);
- (void)write(rem, "", 1);
- if (stat(targ, &stb) == 0 && (stb.st_mode & S_IFMT) == S_IFDIR)
- 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(2, buf + 1, (int)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;
-
- #define getnum(t) (t) = 0; while (isdigit(*cp)) (t) = (t) * 10 + (*cp++ - '0');
- cp = buf;
- if (*cp == 'T') {
- setimes++;
- cp++;
- getnum(mtime.tv_sec);
- if (*cp++ != ' ')
- SCREWUP("mtime.sec not delimited");
- getnum(mtime.tv_usec);
- if (*cp++ != ' ')
- SCREWUP("mtime.usec not delimited");
- getnum(atime.tv_sec);
- if (*cp++ != ' ')
- SCREWUP("atime.sec not delimited");
- getnum(atime.tv_usec);
- if (*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) {
- error("%s\n", 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");
- size = 0;
- while (isdigit(*cp))
- size = size * 10 + (*cp++ - '0');
- if (*cp++ != ' ')
- SCREWUP("size not delimited");
- if (targisdir) {
- static char *namebuf;
- static int cursize;
- size_t need;
-
- need = strlen(targ) + strlen(cp) + 250;
- if (need > cursize) {
- if (!(namebuf = malloc(need)))
- error("out of memory\n");
- }
- (void)snprintf(namebuf, need, "%s%s%s", targ,
- *targ ? "/" : "", cp);
- np = namebuf;
- }
- else
- np = targ;
- exists = stat(np, &stb) == 0;
- if (buf[0] == 'D') {
- if (exists) {
- if ((stb.st_mode&S_IFMT) != S_IFDIR) {
- errno = ENOTDIR;
- goto bad;
- }
- if (pflag)
- (void)chmod(np, mode);
- } else if (mkdir(np, mode) < 0)
- goto bad;
- vect[0] = np;
- sink(1, vect);
- if (setimes) {
- setimes = 0;
- if (utimes(np, tv) < 0)
- error("rcp: can't set times on %s: %s\n",
- np, strerror(errno));
- }
- continue;
- }
- if ((ofd = open(np, O_WRONLY|O_CREAT, mode)) < 0) {
- bad: error("rcp: %s: %s\n", np, strerror(errno));
- continue;
- }
- if (exists && pflag)
- (void)fchmod(ofd, mode);
- (void)write(rem, "", 1);
- if ((bp = allocbuf(&buffer, ofd, BUFSIZ)) == 0) {
- (void)close(ofd);
- continue;
- }
- cp = bp->buf;
- count = 0;
- wrerr = NO;
- for (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) {
- error("rcp: %s\n",
- j ? strerror(errno) :
- "dropped connection");
- exit(1);
- }
- amt -= j;
- cp += j;
- } while (amt > 0);
- if (count == bp->cnt) {
- if (wrerr == NO &&
- write(ofd, bp->buf, count) != count)
- wrerr = YES;
- count = 0;
- cp = bp->buf;
- }
- }
- if (count != 0 && wrerr == NO &&
- write(ofd, bp->buf, count) != count)
- wrerr = YES;
- if (ftruncate(ofd, size)) {
- error("rcp: can't truncate %s: %s\n", np,
- strerror(errno));
- wrerr = DISPLAYED;
- }
- (void)close(ofd);
- (void)response();
- if (setimes && wrerr == NO) {
- setimes = 0;
- if (utimes(np, tv) < 0) {
- error("rcp: can't set times on %s: %s\n",
- np, strerror(errno));
- wrerr = DISPLAYED;
- }
- }
- switch(wrerr) {
- case YES:
- error("rcp: %s: %s\n", np, strerror(errno));
- break;
- case NO:
- (void)write(rem, "", 1);
- break;
- case DISPLAYED:
- break;
- }
- }
- screwup:
- error("rcp: protocol screwup: %s\n", why);
- exit(1);
- }
-
- BUF *
- allocbuf(bp, fd, blksize)
- BUF *bp;
- int fd, blksize;
- {
- struct stat stb;
- size_t size;
-
- if (fstat(fd, &stb) < 0) {
- error("rcp: fstat: %s\n", strerror(errno));
- return(0);
- }
- size = roundup(stb.st_blksize, blksize);
- if (size == 0)
- size = blksize;
- if (bp->cnt < size) {
- if (bp->buf != 0)
- free(bp->buf);
- bp->buf = malloc(size);
- if (!bp->buf) {
- error("rcp: malloc: out of memory\n");
- return(0);
- }
- }
- bp->cnt = size;
- return(bp);
- }
-
- /* VARARGS1 */
- error(fmt, a1, a2, a3)
- char *fmt;
- int a1, a2, a3;
- {
- static FILE *fp;
-
- ++errs;
- if (!fp && !(fp = fdopen(rem, "w")))
- return;
- (void)fprintf(fp, "%c", 0x01);
- (void)fprintf(fp, fmt, a1, a2, a3);
- (void)fflush(fp);
- if (!iamremote)
- (void)fprintf(stderr, fmt, a1, a2, a3);
- }
-
- nospace()
- {
- (void)fprintf(stderr, "rcp: out of memory.\n");
- exit(1);
- }
-
-
- usage()
- {
- #ifdef KERBEROS
- #ifdef CRYPT
- (void)fprintf(stderr, "%s\n\t%s\n",
- "usage: rcp [-k realm] [-px] f1 f2",
- "or: rcp [-k realm] [-rpx] f1 ... fn directory");
- #else
- (void)fprintf(stderr, "%s\n\t%s\n",
- "usage: rcp [-k realm] [-p] f1 f2",
- "or: rcp [-k realm] [-rp] f1 ... fn directory");
- #endif
- #else
- (void)fprintf(stderr,
- "usage: rcp [-p] f1 f2; or: rcp [-rp] f1 ... fn directory\n");
- #endif
- exit(1);
- }
-
- #ifdef KERBEROS
- old_warning(str)
- char *str;
- {
- (void)fprintf(stderr, "rcp: warning: %s, using standard rcp\n", str);
- }
-
- int
- kerberos(host, bp, locuser, user)
-
- char **host, *bp, *locuser, *user;
- {
- struct servent *sp;
-
- again:
- if (use_kerberos) {
- rem = KSUCCESS;
- errno = 0;
- if (dest_realm == NULL)
- dest_realm = krb_realmofhost(*host);
-
- #ifdef CRYPT
- if (doencrypt)
- rem = krcmd_mutual(
- host, port,
- user, bp, 0,
- dest_realm,
- &cred, schedule);
- else
- #endif
- rem = krcmd(
- host, port,
- user, bp, 0, dest_realm);
-
- if (rem < 0) {
- use_kerberos = 0;
- sp = getservbyname("shell", "tcp");
- if (sp == NULL) {
- (void)fprintf(stderr,
- "rcp: unknown service shell/tcp\n");
- exit(1);
- }
- if (errno == ECONNREFUSED)
- old_warning(
- "remote host doesn't support Kerberos");
-
- if (errno == ENOENT)
- old_warning(
- "Can't provide Kerberos auth data");
- port = sp->s_port;
- goto again;
- }
- } else {
- #ifdef CRYPT
- if (doencrypt) {
- fprintf(stderr,
- "The -x option requires Kerberos authentication\n");
- exit(1);
- }
- #endif
- rem = rcmd(host, sp->s_port, locuser, user, bp, 0);
- }
- return(rem);
- }
- #endif /* KERBEROS */
- @
-