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-rw-r--r--bin/rcp/rcp.c984
1 files changed, 984 insertions, 0 deletions
diff --git a/bin/rcp/rcp.c b/bin/rcp/rcp.c
new file mode 100644
index 000000000000..0d15b68e411c
--- /dev/null
+++ b/bin/rcp/rcp.c
@@ -0,0 +1,984 @@
+/*
+ * 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 */
generated by cgit v1.3 (git 2.53.0) at 2026-07-27 12:26:42 +0000