1 /* $OpenBSD: scp.c,v 1.165 2009/12/20 07:28:36 guenther Exp $ */
3 * scp - secure remote copy. This is basically patched BSD rcp which
4 * uses ssh to do the data transfer (instead of using rcmd).
6 * NOTE: This version should NOT be suid root. (This uses ssh to
7 * do the transfer and ssh has the necessary privileges.)
9 * 1995 Timo Rinne <tri@iki.fi>, Tatu Ylonen <ylo@cs.hut.fi>
11 * As far as I am concerned, the code I have written for this software
12 * can be used freely for any purpose. Any derived versions of this
13 * software must be clearly marked as such, and if the derived work is
14 * incompatible with the protocol description in the RFC file, it must be
15 * called by a name other than "ssh" or "Secure Shell".
18 * Copyright (c) 1999 Theo de Raadt. All rights reserved.
19 * Copyright (c) 1999 Aaron Campbell. All rights reserved.
21 * Redistribution and use in source and binary forms, with or without
22 * modification, are permitted provided that the following conditions
24 * 1. Redistributions of source code must retain the above copyright
25 * notice, this list of conditions and the following disclaimer.
26 * 2. Redistributions in binary form must reproduce the above copyright
27 * notice, this list of conditions and the following disclaimer in the
28 * documentation and/or other materials provided with the distribution.
30 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
31 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
32 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
33 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
34 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
35 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
36 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
37 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
38 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
39 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
45 * Copyright (c) 1983, 1990, 1992, 1993, 1995
46 * The Regents of the University of California. All rights reserved.
48 * Redistribution and use in source and binary forms, with or without
49 * modification, are permitted provided that the following conditions
51 * 1. Redistributions of source code must retain the above copyright
52 * notice, this list of conditions and the following disclaimer.
53 * 2. Redistributions in binary form must reproduce the above copyright
54 * notice, this list of conditions and the following disclaimer in the
55 * documentation and/or other materials provided with the distribution.
56 * 3. Neither the name of the University nor the names of its contributors
57 * may be used to endorse or promote products derived from this software
58 * without specific prior written permission.
60 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
61 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
62 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
63 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
64 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
65 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
66 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
67 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
68 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
69 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
76 #include <sys/types.h>
77 #include <sys/param.h>
78 #ifdef HAVE_SYS_STAT_H
79 # include <sys/stat.h>
84 # ifdef HAVE_SYS_POLL_H
85 # include <sys/poll.h>
88 #ifdef HAVE_SYS_TIME_H
89 # include <sys/time.h>
106 #if defined(HAVE_STRNVIS) && defined(HAVE_VIS_H)
111 #include "atomicio.h"
112 #include "pathnames.h"
115 #include "progressmeter.h"
117 extern char *__progname;
119 #define COPY_BUFLEN 16384
121 int do_cmd(char *host, char *remuser, char *cmd, int *fdin, int *fdout);
125 /* Struct for addargs */
128 /* Bandwidth limit */
129 off_t limit_rate = 0;
131 /* Name of current file being transferred. */
134 /* This is set to non-zero to enable verbose mode. */
135 int verbose_mode = 0;
137 /* This is set to zero if the progressmeter is not desired. */
138 int showprogress = 1;
140 /* This is the program to execute for the secured connection. ("ssh" or -S) */
141 char *ssh_program = _PATH_SSH_PROGRAM;
143 /* This is used to store the pid of ssh_program */
144 pid_t do_cmd_pid = -1;
149 if (do_cmd_pid > 1) {
150 kill(do_cmd_pid, signo ? signo : SIGTERM);
151 waitpid(do_cmd_pid, NULL, 0);
160 do_local_cmd(arglist *a)
167 fatal("do_local_cmd: no arguments");
170 fprintf(stderr, "Executing:");
171 for (i = 0; i < a->num; i++)
172 fprintf(stderr, " %s", a->list[i]);
173 fprintf(stderr, "\n");
175 if ((pid = fork()) == -1)
176 fatal("do_local_cmd: fork: %s", strerror(errno));
179 execvp(a->list[0], a->list);
185 signal(SIGTERM, killchild);
186 signal(SIGINT, killchild);
187 signal(SIGHUP, killchild);
189 while (waitpid(pid, &status, 0) == -1)
191 fatal("do_local_cmd: waitpid: %s", strerror(errno));
195 if (!WIFEXITED(status) || WEXITSTATUS(status) != 0)
202 * This function executes the given command as the specified user on the
203 * given host. This returns < 0 if execution fails, and >= 0 otherwise. This
204 * assigns the input and output file descriptors on success.
208 do_cmd(char *host, char *remuser, char *cmd, int *fdin, int *fdout)
210 int pin[2], pout[2], reserved[2];
214 "Executing: program %s host %s, user %s, command %s\n",
216 remuser ? remuser : "(unspecified)", cmd);
219 * Reserve two descriptors so that the real pipes won't get
220 * descriptors 0 and 1 because that will screw up dup2 below.
222 if (pipe(reserved) < 0)
223 fatal("pipe: %s", strerror(errno));
225 /* Create a socket pair for communicating with ssh. */
227 fatal("pipe: %s", strerror(errno));
229 fatal("pipe: %s", strerror(errno));
231 /* Free the reserved descriptors. */
235 /* Fork a child to execute the command on the remote host using ssh. */
237 if (do_cmd_pid == 0) {
246 replacearg(&args, 0, "%s", ssh_program);
247 if (remuser != NULL) {
248 addargs(&args, "-l");
249 addargs(&args, "%s", remuser);
251 addargs(&args, "--");
252 addargs(&args, "%s", host);
253 addargs(&args, "%s", cmd);
255 execvp(ssh_program, args.list);
258 } else if (do_cmd_pid == -1) {
259 fatal("fork: %s", strerror(errno));
261 /* Parent. Close the other side, and return the local side. */
266 signal(SIGTERM, killchild);
267 signal(SIGINT, killchild);
268 signal(SIGHUP, killchild);
277 BUF *allocbuf(BUF *, int, int);
280 void run_err(const char *,...);
281 void verifydir(char *);
285 int errs, remin, remout;
286 int pflag, iamremote, iamrecursive, targetshouldbedirectory;
289 char cmd[CMDNEEDS]; /* must hold "rcp -r -p -d\0" */
292 void rsource(char *, struct stat *);
293 void sink(int, char *[]);
294 void source(int, char *[]);
295 void tolocal(int, char *[]);
296 void toremote(char *, int, char *[]);
297 size_t scpio(ssize_t (*)(int, void *, size_t), int, void *, size_t, off_t *);
301 main(int argc, char **argv)
303 int ch, fflag, tflag, status, n;
305 char *targ, *endp, **newargv;
309 /* Ensure that fds 0, 1 and 2 are open or directed to /dev/null */
312 /* Copy argv, because we modify it */
313 newargv = xcalloc(MAX(argc + 1, 1), sizeof(*newargv));
314 for (n = 0; n < argc; n++)
315 newargv[n] = xstrdup(argv[n]);
318 __progname = ssh_get_progname(argv[0]);
320 memset(&args, '\0', sizeof(args));
322 addargs(&args, "%s", ssh_program);
323 addargs(&args, "-x");
324 addargs(&args, "-oForwardAgent no");
325 addargs(&args, "-oPermitLocalCommand no");
326 addargs(&args, "-oClearAllForwardings yes");
329 while ((ch = getopt(argc, argv, "dfl:prtvBCc:i:P:q1246S:o:F:")) != -1)
331 /* User-visible flags. */
337 addargs(&args, "-%c", ch);
343 addargs(&args, "-%c", ch);
344 addargs(&args, "%s", optarg);
347 addargs(&args, "-p");
348 addargs(&args, "%s", optarg);
351 addargs(&args, "-oBatchmode yes");
354 speed = strtod(optarg, &endp);
355 if (speed <= 0 || *endp != '\0')
357 limit_rate = speed * 1024;
366 ssh_program = xstrdup(optarg);
369 addargs(&args, "-v");
373 addargs(&args, "-q");
377 /* Server options. */
379 targetshouldbedirectory = 1;
381 case 'f': /* "from" */
389 setmode(0, O_BINARY);
398 if ((pwd = getpwuid(userid = getuid())) == NULL)
399 fatal("unknown user %u", (u_int) userid);
401 if (!isatty(STDOUT_FILENO))
404 remin = STDIN_FILENO;
405 remout = STDOUT_FILENO;
408 /* Follow "protocol", send data. */
421 targetshouldbedirectory = 1;
425 /* Command to be executed on remote system using "ssh". */
426 (void) snprintf(cmd, sizeof cmd, "scp%s%s%s%s",
427 verbose_mode ? " -v" : "",
428 iamrecursive ? " -r" : "", pflag ? " -p" : "",
429 targetshouldbedirectory ? " -d" : "");
431 (void) signal(SIGPIPE, lostconn);
433 if ((targ = colon(argv[argc - 1]))) /* Dest is remote host. */
434 toremote(targ, argc, argv);
436 if (targetshouldbedirectory)
437 verifydir(argv[argc - 1]);
438 tolocal(argc, argv); /* Dest is local host. */
441 * Finally check the exit status of the ssh process, if one was forked
442 * and no error has occurred yet
444 if (do_cmd_pid != -1 && errs == 0) {
448 (void) close(remout);
449 if (waitpid(do_cmd_pid, &status, 0) == -1)
452 if (!WIFEXITED(status) || WEXITSTATUS(status) != 0)
460 * atomicio-like wrapper that also applies bandwidth limits and updates
461 * the progressmeter counter.
464 scpio(ssize_t (*f)(int, void *, size_t), int fd, void *_p, size_t l, off_t *c)
466 u_char *p = (u_char *)_p;
472 pfd.events = f == read ? POLLIN : POLLOUT;
473 for (offset = 0; offset < l;) {
474 r = f(fd, p + offset, l - offset);
482 if (errno == EAGAIN || errno == EWOULDBLOCK) {
483 (void)poll(&pfd, 1, -1); /* Ignore errors */
497 toremote(char *targ, int argc, char **argv)
499 char *bp, *host, *src, *suser, *thost, *tuser, *arg;
503 memset(&alist, '\0', sizeof(alist));
510 arg = xstrdup(argv[argc - 1]);
511 if ((thost = strrchr(arg, '@'))) {
522 if (tuser != NULL && !okname(tuser)) {
527 for (i = 0; i < argc - 1; i++) {
528 src = colon(argv[i]);
529 if (src) { /* remote to remote */
531 addargs(&alist, "%s", ssh_program);
533 addargs(&alist, "-v");
534 addargs(&alist, "-x");
535 addargs(&alist, "-oClearAllForwardings yes");
536 addargs(&alist, "-n");
541 host = strrchr(argv[i], '@');
545 host = cleanhostname(host);
548 suser = pwd->pw_name;
549 else if (!okname(suser))
551 addargs(&alist, "-l");
552 addargs(&alist, "%s", suser);
554 host = cleanhostname(argv[i]);
556 addargs(&alist, "--");
557 addargs(&alist, "%s", host);
558 addargs(&alist, "%s", cmd);
559 addargs(&alist, "%s", src);
560 addargs(&alist, "%s%s%s:%s",
561 tuser ? tuser : "", tuser ? "@" : "",
563 if (do_local_cmd(&alist) != 0)
565 } else { /* local to remote */
567 xasprintf(&bp, "%s -t -- %s", cmd, targ);
568 host = cleanhostname(thost);
569 if (do_cmd(host, tuser, bp, &remin,
583 tolocal(int argc, char **argv)
585 char *bp, *host, *src, *suser;
589 memset(&alist, '\0', sizeof(alist));
592 for (i = 0; i < argc - 1; i++) {
593 if (!(src = colon(argv[i]))) { /* Local to local. */
595 addargs(&alist, "%s", _PATH_CP);
597 addargs(&alist, "-r");
599 addargs(&alist, "-p");
600 addargs(&alist, "--");
601 addargs(&alist, "%s", argv[i]);
602 addargs(&alist, "%s", argv[argc-1]);
603 if (do_local_cmd(&alist))
610 if ((host = strrchr(argv[i], '@')) == NULL) {
617 suser = pwd->pw_name;
619 host = cleanhostname(host);
620 xasprintf(&bp, "%s -f -- %s", cmd, src);
621 if (do_cmd(host, suser, bp, &remin, &remout) < 0) {
627 sink(1, argv + argc - 1);
634 source(int argc, char **argv)
641 int fd = -1, haderr, indx;
642 char *last, *name, buf[2048], encname[MAXPATHLEN];
645 for (indx = 0; indx < argc; ++indx) {
649 while (len > 1 && name[len-1] == '/')
651 if ((fd = open(name, O_RDONLY|O_NONBLOCK, 0)) < 0)
653 if (strchr(name, '\n') != NULL) {
654 strnvis(encname, name, sizeof(encname), VIS_NL);
657 if (fstat(fd, &stb) < 0) {
658 syserr: run_err("%s: %s", name, strerror(errno));
661 if (stb.st_size < 0) {
662 run_err("%s: %s", name, "Negative file size");
666 switch (stb.st_mode & S_IFMT) {
676 run_err("%s: not a regular file", name);
679 if ((last = strrchr(name, '/')) == NULL)
686 * Make it compatible with possible future
687 * versions expecting microseconds.
689 (void) snprintf(buf, sizeof buf, "T%lu 0 %lu 0\n",
690 (u_long) (stb.st_mtime < 0 ? 0 : stb.st_mtime),
691 (u_long) (stb.st_atime < 0 ? 0 : stb.st_atime));
693 fprintf(stderr, "File mtime %ld atime %ld\n",
694 (long)stb.st_mtime, (long)stb.st_atime);
695 fprintf(stderr, "Sending file timestamps: %s",
698 (void) atomicio(vwrite, remout, buf, strlen(buf));
702 #define FILEMODEMASK (S_ISUID|S_ISGID|S_IRWXU|S_IRWXG|S_IRWXO)
703 snprintf(buf, sizeof buf, "C%04o %lld %s\n",
704 (u_int) (stb.st_mode & FILEMODEMASK),
705 (long long)stb.st_size, last);
707 fprintf(stderr, "Sending file modes: %s", buf);
709 (void) atomicio(vwrite, remout, buf, strlen(buf));
712 if ((bp = allocbuf(&buffer, fd, COPY_BUFLEN)) == NULL) {
713 next: if (fd != -1) {
720 start_progress_meter(curfile, stb.st_size, &statbytes);
721 set_nonblock(remout);
722 for (haderr = i = 0; i < stb.st_size; i += bp->cnt) {
724 if (i + (off_t)amt > stb.st_size)
725 amt = stb.st_size - i;
727 if (atomicio(read, fd, bp->buf, amt) != amt)
730 /* Keep writing after error to retain sync */
732 (void)atomicio(vwrite, remout, bp->buf, amt);
735 if (scpio(vwrite, remout, bp->buf, amt,
739 unset_nonblock(remout);
741 stop_progress_meter();
744 if (close(fd) < 0 && !haderr)
749 (void) atomicio(vwrite, remout, "", 1);
751 run_err("%s: %s", name, strerror(haderr));
757 rsource(char *name, struct stat *statp)
761 char *last, *vect[1], path[1100];
763 if (!(dirp = opendir(name))) {
764 run_err("%s: %s", name, strerror(errno));
767 last = strrchr(name, '/');
773 (void) snprintf(path, sizeof(path), "T%lu 0 %lu 0\n",
774 (u_long) statp->st_mtime,
775 (u_long) statp->st_atime);
776 (void) atomicio(vwrite, remout, path, strlen(path));
777 if (response() < 0) {
782 (void) snprintf(path, sizeof path, "D%04o %d %.1024s\n",
783 (u_int) (statp->st_mode & FILEMODEMASK), 0, last);
785 fprintf(stderr, "Entering directory: %s", path);
786 (void) atomicio(vwrite, remout, path, strlen(path));
787 if (response() < 0) {
791 while ((dp = readdir(dirp)) != NULL) {
794 if (!strcmp(dp->d_name, ".") || !strcmp(dp->d_name, ".."))
796 if (strlen(name) + 1 + strlen(dp->d_name) >= sizeof(path) - 1) {
797 run_err("%s/%s: name too long", name, dp->d_name);
800 (void) snprintf(path, sizeof path, "%s/%s", name, dp->d_name);
804 (void) closedir(dirp);
805 (void) atomicio(vwrite, remout, "E\n", 2);
812 static struct timeval bwstart, bwend;
813 static int lamt, thresh = 16384;
815 struct timespec ts, rm;
817 if (!timerisset(&bwstart)) {
818 gettimeofday(&bwstart, NULL);
826 gettimeofday(&bwend, NULL);
827 timersub(&bwend, &bwstart, &bwend);
828 if (!timerisset(&bwend))
832 waitlen = (double)1000000L * lamt / limit_rate;
834 bwstart.tv_sec = waitlen / 1000000L;
835 bwstart.tv_usec = waitlen % 1000000L;
837 if (timercmp(&bwstart, &bwend, >)) {
838 timersub(&bwstart, &bwend, &bwend);
840 /* Adjust the wait time */
845 } else if (bwend.tv_usec < 10000) {
847 if (thresh > COPY_BUFLEN * 4)
848 thresh = COPY_BUFLEN * 4;
851 TIMEVAL_TO_TIMESPEC(&bwend, &ts);
852 while (nanosleep(&ts, &rm) == -1) {
860 gettimeofday(&bwstart, NULL);
864 sink(int argc, char **argv)
874 int amt, exists, first, ofd;
875 mode_t mode, omode, mask;
876 off_t size, statbytes;
877 int setimes, targisdir, wrerrno = 0;
878 char ch, *cp, *np, *targ, *why, *vect[1], buf[2048];
879 struct timeval tv[2];
883 #define SCREWUP(str) { why = str; goto screwup; }
885 setimes = targisdir = 0;
890 run_err("ambiguous target");
894 if (targetshouldbedirectory)
897 (void) atomicio(vwrite, remout, "", 1);
898 if (stat(targ, &stb) == 0 && S_ISDIR(stb.st_mode))
900 for (first = 1;; first = 0) {
902 if (atomicio(read, remin, cp, 1) != 1)
905 SCREWUP("unexpected <newline>");
907 if (atomicio(read, remin, &ch, sizeof(ch)) != sizeof(ch))
908 SCREWUP("lost connection");
910 } while (cp < &buf[sizeof(buf) - 1] && ch != '\n');
913 fprintf(stderr, "Sink: %s", buf);
915 if (buf[0] == '\01' || buf[0] == '\02') {
917 (void) atomicio(vwrite, STDERR_FILENO,
918 buf + 1, strlen(buf + 1));
925 (void) atomicio(vwrite, remout, "", 1);
935 mtime.tv_sec = strtol(cp, &cp, 10);
936 if (!cp || *cp++ != ' ')
937 SCREWUP("mtime.sec not delimited");
938 mtime.tv_usec = strtol(cp, &cp, 10);
939 if (!cp || *cp++ != ' ')
940 SCREWUP("mtime.usec not delimited");
941 atime.tv_sec = strtol(cp, &cp, 10);
942 if (!cp || *cp++ != ' ')
943 SCREWUP("atime.sec not delimited");
944 atime.tv_usec = strtol(cp, &cp, 10);
945 if (!cp || *cp++ != '\0')
946 SCREWUP("atime.usec not delimited");
947 (void) atomicio(vwrite, remout, "", 1);
950 if (*cp != 'C' && *cp != 'D') {
952 * Check for the case "rcp remote:foo\* local:bar".
953 * In this case, the line "No match." can be returned
954 * by the shell before the rcp command on the remote is
955 * executed so the ^Aerror_message convention isn't
962 SCREWUP("expected control record");
965 for (++cp; cp < buf + 5; cp++) {
966 if (*cp < '0' || *cp > '7')
968 mode = (mode << 3) | (*cp - '0');
971 SCREWUP("mode not delimited");
973 for (size = 0; isdigit(*cp);)
974 size = size * 10 + (*cp++ - '0');
976 SCREWUP("size not delimited");
977 if ((strchr(cp, '/') != NULL) || (strcmp(cp, "..") == 0)) {
978 run_err("error: unexpected filename: %s", cp);
982 static char *namebuf;
983 static size_t cursize;
986 need = strlen(targ) + strlen(cp) + 250;
987 if (need > cursize) {
990 namebuf = xmalloc(need);
993 (void) snprintf(namebuf, need, "%s%s%s", targ,
994 strcmp(targ, "/") ? "/" : "", cp);
999 exists = stat(np, &stb) == 0;
1000 if (buf[0] == 'D') {
1001 int mod_flag = pflag;
1003 SCREWUP("received directory without -r");
1005 if (!S_ISDIR(stb.st_mode)) {
1010 (void) chmod(np, mode);
1012 /* Handle copying from a read-only
1015 if (mkdir(np, mode | S_IRWXU) < 0)
1018 vect[0] = xstrdup(np);
1022 if (utimes(vect[0], tv) < 0)
1023 run_err("%s: set times: %s",
1024 vect[0], strerror(errno));
1027 (void) chmod(vect[0], mode);
1034 if ((ofd = open(np, O_WRONLY|O_CREAT, mode)) < 0) {
1035 bad: run_err("%s: %s", np, strerror(errno));
1038 (void) atomicio(vwrite, remout, "", 1);
1039 if ((bp = allocbuf(&buffer, ofd, COPY_BUFLEN)) == NULL) {
1048 start_progress_meter(curfile, size, &statbytes);
1049 set_nonblock(remin);
1050 for (count = i = 0; i < size; i += bp->cnt) {
1056 j = scpio(read, remin, cp, amt, &statbytes);
1058 run_err("%s", j != EPIPE ?
1060 "dropped connection");
1067 if (count == bp->cnt) {
1068 /* Keep reading so we stay sync'd up. */
1070 if (atomicio(vwrite, ofd, bp->buf,
1080 unset_nonblock(remin);
1082 stop_progress_meter();
1083 if (count != 0 && wrerr == NO &&
1084 atomicio(vwrite, ofd, bp->buf, count) != count) {
1088 if (wrerr == NO && (!exists || S_ISREG(stb.st_mode)) &&
1089 ftruncate(ofd, size) != 0) {
1090 run_err("%s: truncate: %s", np, strerror(errno));
1094 if (exists || omode != mode)
1096 if (fchmod(ofd, omode)) {
1097 #else /* HAVE_FCHMOD */
1098 if (chmod(np, omode)) {
1099 #endif /* HAVE_FCHMOD */
1100 run_err("%s: set mode: %s",
1101 np, strerror(errno));
1105 if (!exists && omode != mode)
1107 if (fchmod(ofd, omode & ~mask)) {
1108 #else /* HAVE_FCHMOD */
1109 if (chmod(np, omode & ~mask)) {
1110 #endif /* HAVE_FCHMOD */
1111 run_err("%s: set mode: %s",
1112 np, strerror(errno));
1116 if (close(ofd) == -1) {
1121 if (setimes && wrerr == NO) {
1123 if (utimes(np, tv) < 0) {
1124 run_err("%s: set times: %s",
1125 np, strerror(errno));
1131 run_err("%s: %s", np, strerror(wrerrno));
1134 (void) atomicio(vwrite, remout, "", 1);
1141 run_err("protocol error: %s", why);
1148 char ch, *cp, resp, rbuf[2048];
1150 if (atomicio(read, remin, &resp, sizeof(resp)) != sizeof(resp))
1160 case 1: /* error, followed by error msg */
1161 case 2: /* fatal error, "" */
1163 if (atomicio(read, remin, &ch, sizeof(ch)) != sizeof(ch))
1166 } while (cp < &rbuf[sizeof(rbuf) - 1] && ch != '\n');
1169 (void) atomicio(vwrite, STDERR_FILENO, rbuf, cp - rbuf);
1181 (void) fprintf(stderr,
1182 "usage: scp [-1246BCpqrv] [-c cipher] [-F ssh_config] [-i identity_file]\n"
1183 " [-l limit] [-o ssh_option] [-P port] [-S program]\n"
1184 " [[user@]host1:]file1 ... [[user@]host2:]file2\n");
1189 run_err(const char *fmt,...)
1195 if (fp != NULL || (remout != -1 && (fp = fdopen(remout, "w")))) {
1196 (void) fprintf(fp, "%c", 0x01);
1197 (void) fprintf(fp, "scp: ");
1199 (void) vfprintf(fp, fmt, ap);
1201 (void) fprintf(fp, "\n");
1207 vfprintf(stderr, fmt, ap);
1209 fprintf(stderr, "\n");
1218 if (!stat(cp, &stb)) {
1219 if (S_ISDIR(stb.st_mode))
1223 run_err("%s: %s", cp, strerror(errno));
1238 if (!isalpha(c) && !isdigit(c)) {
1253 bad: fprintf(stderr, "%s: invalid user name\n", cp0);
1258 allocbuf(BUF *bp, int fd, int blksize)
1261 #ifdef HAVE_STRUCT_STAT_ST_BLKSIZE
1264 if (fstat(fd, &stb) < 0) {
1265 run_err("fstat: %s", strerror(errno));
1268 size = roundup(stb.st_blksize, blksize);
1271 #else /* HAVE_STRUCT_STAT_ST_BLKSIZE */
1273 #endif /* HAVE_STRUCT_STAT_ST_BLKSIZE */
1274 if (bp->cnt >= size)
1276 if (bp->buf == NULL)
1277 bp->buf = xmalloc(size);
1279 bp->buf = xrealloc(bp->buf, 1, size);
1280 memset(bp->buf, 0, size);
1289 write(STDERR_FILENO, "lost connection\n", 16);