Annotation of src/usr.bin/ssh/scp.c, Revision 1.186
1.186 ! schwarze 1: /* $OpenBSD: scp.c,v 1.185 2016/03/02 22:43:52 dtucker Exp $ */
1.1 deraadt 2: /*
1.38 deraadt 3: * scp - secure remote copy. This is basically patched BSD rcp which
4: * uses ssh to do the data transfer (instead of using rcmd).
1.27 markus 5: *
1.38 deraadt 6: * NOTE: This version should NOT be suid root. (This uses ssh to
7: * do the transfer and ssh has the necessary privileges.)
1.27 markus 8: *
1.38 deraadt 9: * 1995 Timo Rinne <tri@iki.fi>, Tatu Ylonen <ylo@cs.hut.fi>
10: *
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".
1.39 markus 16: */
1.38 deraadt 17: /*
1.60 deraadt 18: * Copyright (c) 1999 Theo de Raadt. All rights reserved.
19: * Copyright (c) 1999 Aaron Campbell. All rights reserved.
1.27 markus 20: *
1.38 deraadt 21: * Redistribution and use in source and binary forms, with or without
22: * modification, are permitted provided that the following conditions
23: * are met:
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.
1.27 markus 29: *
1.38 deraadt 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.
40: */
1.1 deraadt 41:
42: /*
1.35 deraadt 43: * Parts from:
44: *
1.1 deraadt 45: * Copyright (c) 1983, 1990, 1992, 1993, 1995
46: * The Regents of the University of California. All rights reserved.
47: *
48: * Redistribution and use in source and binary forms, with or without
49: * modification, are permitted provided that the following conditions
50: * are met:
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.
1.103 millert 56: * 3. Neither the name of the University nor the names of its contributors
1.1 deraadt 57: * may be used to endorse or promote products derived from this software
58: * without specific prior written permission.
59: *
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
70: * SUCH DAMAGE.
71: *
72: */
73:
1.181 deraadt 74: #include <sys/param.h> /* roundup MAX */
1.132 stevesk 75: #include <sys/types.h>
1.161 djm 76: #include <sys/poll.h>
1.132 stevesk 77: #include <sys/wait.h>
1.134 stevesk 78: #include <sys/stat.h>
1.151 stevesk 79: #include <sys/time.h>
1.155 deraadt 80: #include <sys/uio.h>
1.131 stevesk 81:
1.135 stevesk 82: #include <ctype.h>
1.131 stevesk 83: #include <dirent.h>
1.147 stevesk 84: #include <errno.h>
1.144 stevesk 85: #include <fcntl.h>
1.186 ! schwarze 86: #include <locale.h>
1.143 stevesk 87: #include <pwd.h>
1.133 stevesk 88: #include <signal.h>
1.146 stevesk 89: #include <stdarg.h>
1.154 stevesk 90: #include <stdio.h>
1.153 stevesk 91: #include <stdlib.h>
1.150 stevesk 92: #include <string.h>
1.149 stevesk 93: #include <time.h>
1.148 stevesk 94: #include <unistd.h>
1.181 deraadt 95: #include <limits.h>
1.158 dtucker 96: #include <vis.h>
1.1 deraadt 97:
98: #include "xmalloc.h"
1.51 markus 99: #include "atomicio.h"
1.50 markus 100: #include "pathnames.h"
1.51 markus 101: #include "log.h"
1.69 mouring 102: #include "misc.h"
1.97 fgsch 103: #include "progressmeter.h"
1.186 ! schwarze 104: #include "utf8.h"
1.1 deraadt 105:
1.161 djm 106: #define COPY_BUFLEN 16384
107:
1.140 deraadt 108: int do_cmd(char *host, char *remuser, char *cmd, int *fdin, int *fdout);
1.169 markus 109: int do_cmd2(char *host, char *remuser, char *cmd, int fdin, int fdout);
1.11 aaron 110:
1.70 mouring 111: /* Struct for addargs */
112: arglist args;
1.168 djm 113: arglist remote_remote_args;
1.41 markus 114:
1.99 markus 115: /* Bandwidth limit */
1.167 djm 116: long long limit_kbps = 0;
117: struct bwlimit bwlimit;
1.99 markus 118:
1.11 aaron 119: /* Name of current file being transferred. */
120: char *curfile;
1.4 aaron 121:
1.1 deraadt 122: /* This is set to non-zero to enable verbose mode. */
1.17 markus 123: int verbose_mode = 0;
1.1 deraadt 124:
1.6 aaron 125: /* This is set to zero if the progressmeter is not desired. */
126: int showprogress = 1;
127:
1.169 markus 128: /*
129: * This is set to non-zero if remote-remote copy should be piped
130: * through this process.
131: */
132: int throughlocal = 0;
133:
1.34 deraadt 134: /* This is the program to execute for the secured connection. ("ssh" or -S) */
1.50 markus 135: char *ssh_program = _PATH_SSH_PROGRAM;
1.34 deraadt 136:
1.92 markus 137: /* This is used to store the pid of ssh_program */
1.105 djm 138: pid_t do_cmd_pid = -1;
139:
140: static void
141: killchild(int signo)
142: {
1.119 dtucker 143: if (do_cmd_pid > 1) {
1.123 avsm 144: kill(do_cmd_pid, signo ? signo : SIGTERM);
1.119 dtucker 145: waitpid(do_cmd_pid, NULL, 0);
146: }
1.105 djm 147:
1.123 avsm 148: if (signo)
149: _exit(1);
150: exit(1);
1.105 djm 151: }
1.92 markus 152:
1.166 millert 153: static void
154: suspchild(int signo)
155: {
156: int status;
157:
158: if (do_cmd_pid > 1) {
159: kill(do_cmd_pid, signo);
160: while (waitpid(do_cmd_pid, &status, WUNTRACED) == -1 &&
161: errno == EINTR)
162: ;
163: kill(getpid(), SIGSTOP);
164: }
165: }
166:
1.129 djm 167: static int
168: do_local_cmd(arglist *a)
169: {
170: u_int i;
171: int status;
172: pid_t pid;
173:
174: if (a->num == 0)
175: fatal("do_local_cmd: no arguments");
176:
177: if (verbose_mode) {
178: fprintf(stderr, "Executing:");
179: for (i = 0; i < a->num; i++)
1.186 ! schwarze 180: fmprintf(stderr, " %s", a->list[i]);
1.129 djm 181: fprintf(stderr, "\n");
182: }
183: if ((pid = fork()) == -1)
184: fatal("do_local_cmd: fork: %s", strerror(errno));
185:
186: if (pid == 0) {
187: execvp(a->list[0], a->list);
188: perror(a->list[0]);
189: exit(1);
190: }
191:
192: do_cmd_pid = pid;
193: signal(SIGTERM, killchild);
194: signal(SIGINT, killchild);
195: signal(SIGHUP, killchild);
196:
197: while (waitpid(pid, &status, 0) == -1)
198: if (errno != EINTR)
199: fatal("do_local_cmd: waitpid: %s", strerror(errno));
200:
201: do_cmd_pid = -1;
202:
203: if (!WIFEXITED(status) || WEXITSTATUS(status) != 0)
204: return (-1);
205:
206: return (0);
207: }
208:
1.20 markus 209: /*
210: * This function executes the given command as the specified user on the
211: * given host. This returns < 0 if execution fails, and >= 0 otherwise. This
212: * assigns the input and output file descriptors on success.
213: */
1.1 deraadt 214:
1.27 markus 215: int
1.140 deraadt 216: do_cmd(char *host, char *remuser, char *cmd, int *fdin, int *fdout)
1.1 deraadt 217: {
1.18 markus 218: int pin[2], pout[2], reserved[2];
219:
220: if (verbose_mode)
1.186 ! schwarze 221: fmprintf(stderr,
1.78 deraadt 222: "Executing: program %s host %s, user %s, command %s\n",
223: ssh_program, host,
224: remuser ? remuser : "(unspecified)", cmd);
1.18 markus 225:
1.20 markus 226: /*
227: * Reserve two descriptors so that the real pipes won't get
228: * descriptors 0 and 1 because that will screw up dup2 below.
229: */
1.142 markus 230: if (pipe(reserved) < 0)
231: fatal("pipe: %s", strerror(errno));
1.18 markus 232:
233: /* Create a socket pair for communicating with ssh. */
234: if (pipe(pin) < 0)
235: fatal("pipe: %s", strerror(errno));
236: if (pipe(pout) < 0)
237: fatal("pipe: %s", strerror(errno));
238:
239: /* Free the reserved descriptors. */
240: close(reserved[0]);
241: close(reserved[1]);
1.166 millert 242:
243: signal(SIGTSTP, suspchild);
244: signal(SIGTTIN, suspchild);
245: signal(SIGTTOU, suspchild);
1.18 markus 246:
1.106 nino 247: /* Fork a child to execute the command on the remote host using ssh. */
1.92 markus 248: do_cmd_pid = fork();
249: if (do_cmd_pid == 0) {
1.18 markus 250: /* Child. */
251: close(pin[1]);
252: close(pout[0]);
253: dup2(pin[0], 0);
254: dup2(pout[1], 1);
255: close(pin[0]);
256: close(pout[1]);
257:
1.129 djm 258: replacearg(&args, 0, "%s", ssh_program);
1.165 guenther 259: if (remuser != NULL) {
260: addargs(&args, "-l");
261: addargs(&args, "%s", remuser);
262: }
263: addargs(&args, "--");
1.70 mouring 264: addargs(&args, "%s", host);
265: addargs(&args, "%s", cmd);
1.18 markus 266:
1.41 markus 267: execvp(ssh_program, args.list);
1.34 deraadt 268: perror(ssh_program);
1.18 markus 269: exit(1);
1.92 markus 270: } else if (do_cmd_pid == -1) {
271: fatal("fork: %s", strerror(errno));
1.18 markus 272: }
273: /* Parent. Close the other side, and return the local side. */
274: close(pin[0]);
275: *fdout = pin[1];
276: close(pout[1]);
277: *fdin = pout[0];
1.105 djm 278: signal(SIGTERM, killchild);
279: signal(SIGINT, killchild);
280: signal(SIGHUP, killchild);
1.18 markus 281: return 0;
1.1 deraadt 282: }
283:
1.169 markus 284: /*
285: * This functions executes a command simlar to do_cmd(), but expects the
286: * input and output descriptors to be setup by a previous call to do_cmd().
287: * This way the input and output of two commands can be connected.
288: */
289: int
290: do_cmd2(char *host, char *remuser, char *cmd, int fdin, int fdout)
291: {
292: pid_t pid;
293: int status;
294:
295: if (verbose_mode)
1.186 ! schwarze 296: fmprintf(stderr,
1.169 markus 297: "Executing: 2nd program %s host %s, user %s, command %s\n",
298: ssh_program, host,
299: remuser ? remuser : "(unspecified)", cmd);
300:
301: /* Fork a child to execute the command on the remote host using ssh. */
302: pid = fork();
303: if (pid == 0) {
304: dup2(fdin, 0);
305: dup2(fdout, 1);
306:
307: replacearg(&args, 0, "%s", ssh_program);
308: if (remuser != NULL) {
309: addargs(&args, "-l");
310: addargs(&args, "%s", remuser);
311: }
312: addargs(&args, "--");
313: addargs(&args, "%s", host);
314: addargs(&args, "%s", cmd);
315:
316: execvp(ssh_program, args.list);
317: perror(ssh_program);
318: exit(1);
319: } else if (pid == -1) {
320: fatal("fork: %s", strerror(errno));
321: }
322: while (waitpid(pid, &status, 0) == -1)
323: if (errno != EINTR)
324: fatal("do_cmd2: waitpid: %s", strerror(errno));
325: return 0;
326: }
327:
1.1 deraadt 328: typedef struct {
1.124 djm 329: size_t cnt;
1.1 deraadt 330: char *buf;
331: } BUF;
332:
1.18 markus 333: BUF *allocbuf(BUF *, int, int);
334: void lostconn(int);
335: int okname(char *);
336: void run_err(const char *,...);
337: void verifydir(char *);
1.1 deraadt 338:
339: struct passwd *pwd;
1.18 markus 340: uid_t userid;
1.1 deraadt 341: int errs, remin, remout;
342: int pflag, iamremote, iamrecursive, targetshouldbedirectory;
343:
344: #define CMDNEEDS 64
345: char cmd[CMDNEEDS]; /* must hold "rcp -r -p -d\0" */
346:
1.18 markus 347: int response(void);
348: void rsource(char *, struct stat *);
349: void sink(int, char *[]);
350: void source(int, char *[]);
351: void tolocal(int, char *[]);
352: void toremote(char *, int, char *[]);
353: void usage(void);
1.1 deraadt 354:
355: int
1.104 djm 356: main(int argc, char **argv)
1.1 deraadt 357: {
1.145 djm 358: int ch, fflag, tflag, status, n;
1.167 djm 359: char *targ, **newargv;
360: const char *errstr;
1.1 deraadt 361: extern char *optarg;
362: extern int optind;
1.126 djm 363:
364: /* Ensure that fds 0, 1 and 2 are open or directed to /dev/null */
365: sanitise_stdfd();
1.145 djm 366:
1.186 ! schwarze 367: setlocale(LC_CTYPE, "");
! 368:
1.145 djm 369: /* Copy argv, because we modify it */
370: newargv = xcalloc(MAX(argc + 1, 1), sizeof(*newargv));
371: for (n = 0; n < argc; n++)
372: newargv[n] = xstrdup(argv[n]);
373: argv = newargv;
1.1 deraadt 374:
1.129 djm 375: memset(&args, '\0', sizeof(args));
1.168 djm 376: memset(&remote_remote_args, '\0', sizeof(remote_remote_args));
377: args.list = remote_remote_args.list = NULL;
1.129 djm 378: addargs(&args, "%s", ssh_program);
1.70 mouring 379: addargs(&args, "-x");
1.168 djm 380: addargs(&args, "-oForwardAgent=no");
381: addargs(&args, "-oPermitLocalCommand=no");
382: addargs(&args, "-oClearAllForwardings=yes");
1.41 markus 383:
1.1 deraadt 384: fflag = tflag = 0;
1.169 markus 385: while ((ch = getopt(argc, argv, "dfl:prtvBCc:i:P:q12346S:o:F:")) != -1)
1.18 markus 386: switch (ch) {
387: /* User-visible flags. */
1.100 markus 388: case '1':
389: case '2':
1.23 markus 390: case '4':
1.41 markus 391: case '6':
392: case 'C':
1.70 mouring 393: addargs(&args, "-%c", ch);
1.168 djm 394: addargs(&remote_remote_args, "-%c", ch);
1.41 markus 395: break;
1.169 markus 396: case '3':
397: throughlocal = 1;
398: break;
1.41 markus 399: case 'o':
400: case 'c':
401: case 'i':
1.83 stevesk 402: case 'F':
1.168 djm 403: addargs(&remote_remote_args, "-%c", ch);
404: addargs(&remote_remote_args, "%s", optarg);
1.165 guenther 405: addargs(&args, "-%c", ch);
406: addargs(&args, "%s", optarg);
1.23 markus 407: break;
1.41 markus 408: case 'P':
1.168 djm 409: addargs(&remote_remote_args, "-p");
410: addargs(&remote_remote_args, "%s", optarg);
1.165 guenther 411: addargs(&args, "-p");
412: addargs(&args, "%s", optarg);
1.41 markus 413: break;
414: case 'B':
1.168 djm 415: addargs(&remote_remote_args, "-oBatchmode=yes");
416: addargs(&args, "-oBatchmode=yes");
1.23 markus 417: break;
1.99 markus 418: case 'l':
1.167 djm 419: limit_kbps = strtonum(optarg, 1, 100 * 1024 * 1024,
420: &errstr);
421: if (errstr != NULL)
1.99 markus 422: usage();
1.167 djm 423: limit_kbps *= 1024; /* kbps */
424: bandwidth_limit_init(&bwlimit, limit_kbps, COPY_BUFLEN);
1.99 markus 425: break;
1.1 deraadt 426: case 'p':
427: pflag = 1;
428: break;
429: case 'r':
430: iamrecursive = 1;
431: break;
1.34 deraadt 432: case 'S':
1.41 markus 433: ssh_program = xstrdup(optarg);
434: break;
435: case 'v':
1.72 markus 436: addargs(&args, "-v");
1.168 djm 437: addargs(&remote_remote_args, "-v");
1.41 markus 438: verbose_mode = 1;
439: break;
440: case 'q':
1.111 dtucker 441: addargs(&args, "-q");
1.168 djm 442: addargs(&remote_remote_args, "-q");
1.41 markus 443: showprogress = 0;
1.34 deraadt 444: break;
445:
1.18 markus 446: /* Server options. */
1.1 deraadt 447: case 'd':
448: targetshouldbedirectory = 1;
449: break;
1.18 markus 450: case 'f': /* "from" */
1.1 deraadt 451: iamremote = 1;
452: fflag = 1;
453: break;
1.18 markus 454: case 't': /* "to" */
1.1 deraadt 455: iamremote = 1;
456: tflag = 1;
457: break;
458: default:
459: usage();
460: }
461: argc -= optind;
462: argv += optind;
463:
464: if ((pwd = getpwuid(userid = getuid())) == NULL)
1.108 deraadt 465: fatal("unknown user %u", (u_int) userid);
1.1 deraadt 466:
1.156 djm 467: if (!isatty(STDOUT_FILENO))
1.7 deraadt 468: showprogress = 0;
1.184 deraadt 469:
470: if (pflag) {
471: /* Cannot pledge: -p allows setuid/setgid files... */
472: } else {
473: if (pledge("stdio rpath wpath cpath fattr tty proc exec",
474: NULL) == -1) {
475: perror("pledge");
476: exit(1);
477: }
478: }
1.7 deraadt 479:
1.1 deraadt 480: remin = STDIN_FILENO;
481: remout = STDOUT_FILENO;
482:
1.52 stevesk 483: if (fflag) {
1.18 markus 484: /* Follow "protocol", send data. */
485: (void) response();
1.1 deraadt 486: source(argc, argv);
487: exit(errs != 0);
488: }
1.18 markus 489: if (tflag) {
490: /* Receive data. */
1.1 deraadt 491: sink(argc, argv);
492: exit(errs != 0);
493: }
494: if (argc < 2)
495: usage();
496: if (argc > 2)
497: targetshouldbedirectory = 1;
498:
499: remin = remout = -1;
1.92 markus 500: do_cmd_pid = -1;
1.1 deraadt 501: /* Command to be executed on remote system using "ssh". */
1.55 deraadt 502: (void) snprintf(cmd, sizeof cmd, "scp%s%s%s%s",
503: verbose_mode ? " -v" : "",
1.35 deraadt 504: iamrecursive ? " -r" : "", pflag ? " -p" : "",
505: targetshouldbedirectory ? " -d" : "");
1.1 deraadt 506:
1.18 markus 507: (void) signal(SIGPIPE, lostconn);
1.1 deraadt 508:
509: if ((targ = colon(argv[argc - 1]))) /* Dest is remote host. */
510: toremote(targ, argc, argv);
511: else {
512: if (targetshouldbedirectory)
513: verifydir(argv[argc - 1]);
1.130 djm 514: tolocal(argc, argv); /* Dest is local host. */
1.92 markus 515: }
516: /*
517: * Finally check the exit status of the ssh process, if one was forked
1.164 stevesk 518: * and no error has occurred yet
1.92 markus 519: */
520: if (do_cmd_pid != -1 && errs == 0) {
521: if (remin != -1)
522: (void) close(remin);
523: if (remout != -1)
524: (void) close(remout);
525: if (waitpid(do_cmd_pid, &status, 0) == -1)
526: errs = 1;
527: else {
528: if (!WIFEXITED(status) || WEXITSTATUS(status) != 0)
529: errs = 1;
530: }
1.1 deraadt 531: }
532: exit(errs != 0);
533: }
534:
1.167 djm 535: /* Callback from atomicio6 to update progress meter and limit bandwidth */
536: static int
537: scpio(void *_cnt, size_t s)
1.161 djm 538: {
1.167 djm 539: off_t *cnt = (off_t *)_cnt;
540:
541: *cnt += s;
542: if (limit_kbps > 0)
543: bandwidth_limit(&bwlimit, s);
544: return 0;
1.161 djm 545: }
546:
1.176 guenther 547: static int
548: do_times(int fd, int verb, const struct stat *sb)
549: {
550: /* strlen(2^64) == 20; strlen(10^6) == 7 */
551: char buf[(20 + 7 + 2) * 2 + 2];
552:
553: (void)snprintf(buf, sizeof(buf), "T%llu 0 %llu 0\n",
554: (unsigned long long) (sb->st_mtime < 0 ? 0 : sb->st_mtime),
555: (unsigned long long) (sb->st_atime < 0 ? 0 : sb->st_atime));
556: if (verb) {
557: fprintf(stderr, "File mtime %lld atime %lld\n",
558: (long long)sb->st_mtime, (long long)sb->st_atime);
559: fprintf(stderr, "Sending file timestamps: %s", buf);
560: }
561: (void) atomicio(vwrite, fd, buf, strlen(buf));
562: return (response());
563: }
564:
1.1 deraadt 565: void
1.104 djm 566: toremote(char *targ, int argc, char **argv)
1.1 deraadt 567: {
1.120 deraadt 568: char *bp, *host, *src, *suser, *thost, *tuser, *arg;
1.129 djm 569: arglist alist;
1.140 deraadt 570: int i;
1.168 djm 571: u_int j;
1.129 djm 572:
573: memset(&alist, '\0', sizeof(alist));
574: alist.list = NULL;
1.1 deraadt 575:
576: *targ++ = 0;
577: if (*targ == 0)
578: targ = ".";
579:
1.121 djm 580: arg = xstrdup(argv[argc - 1]);
1.120 deraadt 581: if ((thost = strrchr(arg, '@'))) {
1.1 deraadt 582: /* user@host */
583: *thost++ = 0;
1.120 deraadt 584: tuser = arg;
1.1 deraadt 585: if (*tuser == '\0')
586: tuser = NULL;
587: } else {
1.120 deraadt 588: thost = arg;
1.1 deraadt 589: tuser = NULL;
590: }
591:
1.129 djm 592: if (tuser != NULL && !okname(tuser)) {
1.173 djm 593: free(arg);
1.129 djm 594: return;
595: }
596:
1.1 deraadt 597: for (i = 0; i < argc - 1; i++) {
598: src = colon(argv[i]);
1.169 markus 599: if (src && throughlocal) { /* extended remote to remote */
600: *src++ = 0;
601: if (*src == 0)
602: src = ".";
603: host = strrchr(argv[i], '@');
604: if (host) {
605: *host++ = 0;
606: host = cleanhostname(host);
607: suser = argv[i];
608: if (*suser == '\0')
609: suser = pwd->pw_name;
610: else if (!okname(suser))
611: continue;
612: } else {
613: host = cleanhostname(argv[i]);
614: suser = NULL;
615: }
1.171 djm 616: xasprintf(&bp, "%s -f %s%s", cmd,
617: *src == '-' ? "-- " : "", src);
1.169 markus 618: if (do_cmd(host, suser, bp, &remin, &remout) < 0)
619: exit(1);
1.173 djm 620: free(bp);
1.169 markus 621: host = cleanhostname(thost);
1.171 djm 622: xasprintf(&bp, "%s -t %s%s", cmd,
623: *targ == '-' ? "-- " : "", targ);
1.169 markus 624: if (do_cmd2(host, tuser, bp, remin, remout) < 0)
625: exit(1);
1.173 djm 626: free(bp);
1.169 markus 627: (void) close(remin);
628: (void) close(remout);
629: remin = remout = -1;
630: } else if (src) { /* standard remote to remote */
1.129 djm 631: freeargs(&alist);
632: addargs(&alist, "%s", ssh_program);
633: addargs(&alist, "-x");
1.168 djm 634: addargs(&alist, "-oClearAllForwardings=yes");
1.129 djm 635: addargs(&alist, "-n");
1.168 djm 636: for (j = 0; j < remote_remote_args.num; j++) {
637: addargs(&alist, "%s",
638: remote_remote_args.list[j]);
639: }
1.1 deraadt 640: *src++ = 0;
641: if (*src == 0)
642: src = ".";
1.94 markus 643: host = strrchr(argv[i], '@');
1.129 djm 644:
1.1 deraadt 645: if (host) {
646: *host++ = 0;
1.23 markus 647: host = cleanhostname(host);
1.1 deraadt 648: suser = argv[i];
649: if (*suser == '\0')
650: suser = pwd->pw_name;
1.129 djm 651: else if (!okname(suser))
1.101 markus 652: continue;
1.129 djm 653: addargs(&alist, "-l");
654: addargs(&alist, "%s", suser);
1.23 markus 655: } else {
656: host = cleanhostname(argv[i]);
657: }
1.165 guenther 658: addargs(&alist, "--");
1.129 djm 659: addargs(&alist, "%s", host);
660: addargs(&alist, "%s", cmd);
661: addargs(&alist, "%s", src);
662: addargs(&alist, "%s%s%s:%s",
663: tuser ? tuser : "", tuser ? "@" : "",
664: thost, targ);
665: if (do_local_cmd(&alist) != 0)
1.109 markus 666: errs = 1;
1.18 markus 667: } else { /* local to remote */
1.1 deraadt 668: if (remin == -1) {
1.171 djm 669: xasprintf(&bp, "%s -t %s%s", cmd,
670: *targ == '-' ? "-- " : "", targ);
1.23 markus 671: host = cleanhostname(thost);
1.35 deraadt 672: if (do_cmd(host, tuser, bp, &remin,
1.140 deraadt 673: &remout) < 0)
1.18 markus 674: exit(1);
1.1 deraadt 675: if (response() < 0)
676: exit(1);
1.173 djm 677: free(bp);
1.1 deraadt 678: }
1.18 markus 679: source(1, argv + i);
1.1 deraadt 680: }
681: }
1.173 djm 682: free(arg);
1.1 deraadt 683: }
684:
685: void
1.104 djm 686: tolocal(int argc, char **argv)
1.1 deraadt 687: {
688: char *bp, *host, *src, *suser;
1.129 djm 689: arglist alist;
1.140 deraadt 690: int i;
1.129 djm 691:
692: memset(&alist, '\0', sizeof(alist));
693: alist.list = NULL;
1.1 deraadt 694:
695: for (i = 0; i < argc - 1; i++) {
1.18 markus 696: if (!(src = colon(argv[i]))) { /* Local to local. */
1.129 djm 697: freeargs(&alist);
698: addargs(&alist, "%s", _PATH_CP);
699: if (iamrecursive)
700: addargs(&alist, "-r");
701: if (pflag)
702: addargs(&alist, "-p");
1.165 guenther 703: addargs(&alist, "--");
1.129 djm 704: addargs(&alist, "%s", argv[i]);
705: addargs(&alist, "%s", argv[argc-1]);
706: if (do_local_cmd(&alist))
1.1 deraadt 707: ++errs;
708: continue;
709: }
710: *src++ = 0;
711: if (*src == 0)
712: src = ".";
1.94 markus 713: if ((host = strrchr(argv[i], '@')) == NULL) {
1.1 deraadt 714: host = argv[i];
715: suser = NULL;
716: } else {
717: *host++ = 0;
718: suser = argv[i];
719: if (*suser == '\0')
720: suser = pwd->pw_name;
721: }
1.23 markus 722: host = cleanhostname(host);
1.171 djm 723: xasprintf(&bp, "%s -f %s%s",
724: cmd, *src == '-' ? "-- " : "", src);
1.140 deraadt 725: if (do_cmd(host, suser, bp, &remin, &remout) < 0) {
1.173 djm 726: free(bp);
1.18 markus 727: ++errs;
728: continue;
1.1 deraadt 729: }
1.173 djm 730: free(bp);
1.1 deraadt 731: sink(1, argv + argc - 1);
1.18 markus 732: (void) close(remin);
1.1 deraadt 733: remin = remout = -1;
734: }
735: }
736:
737: void
1.104 djm 738: source(int argc, char **argv)
1.1 deraadt 739: {
740: struct stat stb;
741: static BUF buffer;
742: BUF *bp;
1.163 dtucker 743: off_t i, statbytes;
1.180 djm 744: size_t amt, nr;
1.125 dtucker 745: int fd = -1, haderr, indx;
1.181 deraadt 746: char *last, *name, buf[2048], encname[PATH_MAX];
1.65 deraadt 747: int len;
1.1 deraadt 748:
749: for (indx = 0; indx < argc; ++indx) {
1.18 markus 750: name = argv[indx];
1.11 aaron 751: statbytes = 0;
1.65 deraadt 752: len = strlen(name);
753: while (len > 1 && name[len-1] == '/')
754: name[--len] = '\0';
1.158 dtucker 755: if ((fd = open(name, O_RDONLY|O_NONBLOCK, 0)) < 0)
756: goto syserr;
1.85 markus 757: if (strchr(name, '\n') != NULL) {
1.158 dtucker 758: strnvis(encname, name, sizeof(encname), VIS_NL);
759: name = encname;
1.85 markus 760: }
1.1 deraadt 761: if (fstat(fd, &stb) < 0) {
762: syserr: run_err("%s: %s", name, strerror(errno));
763: goto next;
764: }
1.163 dtucker 765: if (stb.st_size < 0) {
766: run_err("%s: %s", name, "Negative file size");
767: goto next;
768: }
1.157 djm 769: unset_nonblock(fd);
1.1 deraadt 770: switch (stb.st_mode & S_IFMT) {
771: case S_IFREG:
772: break;
773: case S_IFDIR:
774: if (iamrecursive) {
775: rsource(name, &stb);
776: goto next;
777: }
778: /* FALLTHROUGH */
779: default:
780: run_err("%s: not a regular file", name);
781: goto next;
782: }
783: if ((last = strrchr(name, '/')) == NULL)
784: last = name;
785: else
786: ++last;
1.11 aaron 787: curfile = last;
1.1 deraadt 788: if (pflag) {
1.176 guenther 789: if (do_times(remout, verbose_mode, &stb) < 0)
1.1 deraadt 790: goto next;
791: }
792: #define FILEMODEMASK (S_ISUID|S_ISGID|S_IRWXU|S_IRWXG|S_IRWXO)
1.61 markus 793: snprintf(buf, sizeof buf, "C%04o %lld %s\n",
1.47 markus 794: (u_int) (stb.st_mode & FILEMODEMASK),
1.62 markus 795: (long long)stb.st_size, last);
1.186 ! schwarze 796: if (verbose_mode)
! 797: fmprintf(stderr, "Sending file modes: %s", buf);
1.107 deraadt 798: (void) atomicio(vwrite, remout, buf, strlen(buf));
1.1 deraadt 799: if (response() < 0)
800: goto next;
1.161 djm 801: if ((bp = allocbuf(&buffer, fd, COPY_BUFLEN)) == NULL) {
1.127 deraadt 802: next: if (fd != -1) {
803: (void) close(fd);
804: fd = -1;
805: }
1.1 deraadt 806: continue;
807: }
1.97 fgsch 808: if (showprogress)
809: start_progress_meter(curfile, stb.st_size, &statbytes);
1.161 djm 810: set_nonblock(remout);
1.1 deraadt 811: for (haderr = i = 0; i < stb.st_size; i += bp->cnt) {
812: amt = bp->cnt;
1.163 dtucker 813: if (i + (off_t)amt > stb.st_size)
1.1 deraadt 814: amt = stb.st_size - i;
815: if (!haderr) {
1.180 djm 816: if ((nr = atomicio(read, fd,
817: bp->buf, amt)) != amt) {
1.122 avsm 818: haderr = errno;
1.180 djm 819: memset(bp->buf + nr, 0, amt - nr);
820: }
1.1 deraadt 821: }
1.161 djm 822: /* Keep writing after error to retain sync */
823: if (haderr) {
824: (void)atomicio(vwrite, remout, bp->buf, amt);
1.180 djm 825: memset(bp->buf, 0, amt);
1.161 djm 826: continue;
1.1 deraadt 827: }
1.167 djm 828: if (atomicio6(vwrite, remout, bp->buf, amt, scpio,
1.161 djm 829: &statbytes) != amt)
830: haderr = errno;
1.1 deraadt 831: }
1.161 djm 832: unset_nonblock(remout);
1.4 aaron 833:
1.127 deraadt 834: if (fd != -1) {
835: if (close(fd) < 0 && !haderr)
836: haderr = errno;
837: fd = -1;
838: }
1.1 deraadt 839: if (!haderr)
1.107 deraadt 840: (void) atomicio(vwrite, remout, "", 1);
1.1 deraadt 841: else
842: run_err("%s: %s", name, strerror(haderr));
1.18 markus 843: (void) response();
1.185 dtucker 844: if (showprogress)
845: stop_progress_meter();
1.1 deraadt 846: }
847: }
848:
849: void
1.104 djm 850: rsource(char *name, struct stat *statp)
1.1 deraadt 851: {
852: DIR *dirp;
853: struct dirent *dp;
1.181 deraadt 854: char *last, *vect[1], path[PATH_MAX];
1.1 deraadt 855:
856: if (!(dirp = opendir(name))) {
857: run_err("%s: %s", name, strerror(errno));
858: return;
859: }
860: last = strrchr(name, '/');
1.183 mmcc 861: if (last == NULL)
1.1 deraadt 862: last = name;
863: else
864: last++;
865: if (pflag) {
1.176 guenther 866: if (do_times(remout, verbose_mode, statp) < 0) {
1.1 deraadt 867: closedir(dirp);
868: return;
869: }
870: }
1.55 deraadt 871: (void) snprintf(path, sizeof path, "D%04o %d %.1024s\n",
1.47 markus 872: (u_int) (statp->st_mode & FILEMODEMASK), 0, last);
1.18 markus 873: if (verbose_mode)
1.186 ! schwarze 874: fmprintf(stderr, "Entering directory: %s", path);
1.107 deraadt 875: (void) atomicio(vwrite, remout, path, strlen(path));
1.1 deraadt 876: if (response() < 0) {
877: closedir(dirp);
878: return;
879: }
1.63 stevesk 880: while ((dp = readdir(dirp)) != NULL) {
1.1 deraadt 881: if (dp->d_ino == 0)
882: continue;
883: if (!strcmp(dp->d_name, ".") || !strcmp(dp->d_name, ".."))
884: continue;
885: if (strlen(name) + 1 + strlen(dp->d_name) >= sizeof(path) - 1) {
886: run_err("%s/%s: name too long", name, dp->d_name);
887: continue;
888: }
1.55 deraadt 889: (void) snprintf(path, sizeof path, "%s/%s", name, dp->d_name);
1.1 deraadt 890: vect[0] = path;
891: source(1, vect);
892: }
1.18 markus 893: (void) closedir(dirp);
1.107 deraadt 894: (void) atomicio(vwrite, remout, "E\n", 2);
1.18 markus 895: (void) response();
1.1 deraadt 896: }
897:
898: void
1.104 djm 899: sink(int argc, char **argv)
1.1 deraadt 900: {
901: static BUF buffer;
902: struct stat stb;
1.18 markus 903: enum {
904: YES, NO, DISPLAYED
905: } wrerr;
1.1 deraadt 906: BUF *bp;
1.122 avsm 907: off_t i;
1.124 djm 908: size_t j, count;
1.140 deraadt 909: int amt, exists, first, ofd;
910: mode_t mode, omode, mask;
1.97 fgsch 911: off_t size, statbytes;
1.176 guenther 912: unsigned long long ull;
1.36 deraadt 913: int setimes, targisdir, wrerrno = 0;
1.186 ! schwarze 914: char ch, *cp, *np, *targ, *why, *vect[1], buf[2048], visbuf[2048];
1.40 markus 915: struct timeval tv[2];
1.1 deraadt 916:
1.66 stevesk 917: #define atime tv[0]
918: #define mtime tv[1]
1.118 deraadt 919: #define SCREWUP(str) { why = str; goto screwup; }
1.1 deraadt 920:
921: setimes = targisdir = 0;
922: mask = umask(0);
923: if (!pflag)
1.18 markus 924: (void) umask(mask);
1.1 deraadt 925: if (argc != 1) {
926: run_err("ambiguous target");
927: exit(1);
928: }
929: targ = *argv;
930: if (targetshouldbedirectory)
931: verifydir(targ);
1.18 markus 932:
1.107 deraadt 933: (void) atomicio(vwrite, remout, "", 1);
1.1 deraadt 934: if (stat(targ, &stb) == 0 && S_ISDIR(stb.st_mode))
935: targisdir = 1;
936: for (first = 1;; first = 0) {
937: cp = buf;
1.122 avsm 938: if (atomicio(read, remin, cp, 1) != 1)
1.1 deraadt 939: return;
940: if (*cp++ == '\n')
941: SCREWUP("unexpected <newline>");
942: do {
1.30 deraadt 943: if (atomicio(read, remin, &ch, sizeof(ch)) != sizeof(ch))
1.1 deraadt 944: SCREWUP("lost connection");
945: *cp++ = ch;
946: } while (cp < &buf[sizeof(buf) - 1] && ch != '\n');
947: *cp = 0;
1.114 markus 948: if (verbose_mode)
1.186 ! schwarze 949: fmprintf(stderr, "Sink: %s", buf);
1.1 deraadt 950:
951: if (buf[0] == '\01' || buf[0] == '\02') {
1.186 ! schwarze 952: if (iamremote == 0) {
! 953: (void) snmprintf(visbuf, sizeof(visbuf),
! 954: NULL, "%s", buf + 1);
1.107 deraadt 955: (void) atomicio(vwrite, STDERR_FILENO,
1.186 ! schwarze 956: visbuf, strlen(visbuf));
! 957: }
1.1 deraadt 958: if (buf[0] == '\02')
959: exit(1);
960: ++errs;
961: continue;
962: }
963: if (buf[0] == 'E') {
1.107 deraadt 964: (void) atomicio(vwrite, remout, "", 1);
1.1 deraadt 965: return;
966: }
967: if (ch == '\n')
968: *--cp = 0;
969:
970: cp = buf;
971: if (*cp == 'T') {
972: setimes++;
973: cp++;
1.176 guenther 974: if (!isdigit((unsigned char)*cp))
975: SCREWUP("mtime.sec not present");
976: ull = strtoull(cp, &cp, 10);
1.66 stevesk 977: if (!cp || *cp++ != ' ')
1.1 deraadt 978: SCREWUP("mtime.sec not delimited");
1.178 djm 979: if ((time_t)ull < 0 ||
980: (unsigned long long)(time_t)ull != ull)
1.176 guenther 981: setimes = 0; /* out of range */
982: mtime.tv_sec = ull;
1.66 stevesk 983: mtime.tv_usec = strtol(cp, &cp, 10);
1.176 guenther 984: if (!cp || *cp++ != ' ' || mtime.tv_usec < 0 ||
985: mtime.tv_usec > 999999)
1.1 deraadt 986: SCREWUP("mtime.usec not delimited");
1.176 guenther 987: if (!isdigit((unsigned char)*cp))
988: SCREWUP("atime.sec not present");
989: ull = strtoull(cp, &cp, 10);
1.66 stevesk 990: if (!cp || *cp++ != ' ')
1.1 deraadt 991: SCREWUP("atime.sec not delimited");
1.178 djm 992: if ((time_t)ull < 0 ||
993: (unsigned long long)(time_t)ull != ull)
1.176 guenther 994: setimes = 0; /* out of range */
995: atime.tv_sec = ull;
1.66 stevesk 996: atime.tv_usec = strtol(cp, &cp, 10);
1.176 guenther 997: if (!cp || *cp++ != '\0' || atime.tv_usec < 0 ||
998: atime.tv_usec > 999999)
1.1 deraadt 999: SCREWUP("atime.usec not delimited");
1.107 deraadt 1000: (void) atomicio(vwrite, remout, "", 1);
1.1 deraadt 1001: continue;
1002: }
1003: if (*cp != 'C' && *cp != 'D') {
1004: /*
1005: * Check for the case "rcp remote:foo\* local:bar".
1006: * In this case, the line "No match." can be returned
1007: * by the shell before the rcp command on the remote is
1008: * executed so the ^Aerror_message convention isn't
1009: * followed.
1010: */
1011: if (first) {
1012: run_err("%s", cp);
1013: exit(1);
1014: }
1015: SCREWUP("expected control record");
1016: }
1017: mode = 0;
1018: for (++cp; cp < buf + 5; cp++) {
1019: if (*cp < '0' || *cp > '7')
1020: SCREWUP("bad mode");
1021: mode = (mode << 3) | (*cp - '0');
1022: }
1023: if (*cp++ != ' ')
1024: SCREWUP("mode not delimited");
1025:
1.179 deraadt 1026: for (size = 0; isdigit((unsigned char)*cp);)
1.1 deraadt 1027: size = size * 10 + (*cp++ - '0');
1028: if (*cp++ != ' ')
1029: SCREWUP("size not delimited");
1.114 markus 1030: if ((strchr(cp, '/') != NULL) || (strcmp(cp, "..") == 0)) {
1031: run_err("error: unexpected filename: %s", cp);
1032: exit(1);
1033: }
1.1 deraadt 1034: if (targisdir) {
1035: static char *namebuf;
1.124 djm 1036: static size_t cursize;
1.1 deraadt 1037: size_t need;
1038:
1039: need = strlen(targ) + strlen(cp) + 250;
1.55 deraadt 1040: if (need > cursize) {
1.173 djm 1041: free(namebuf);
1.18 markus 1042: namebuf = xmalloc(need);
1.55 deraadt 1043: cursize = need;
1044: }
1045: (void) snprintf(namebuf, need, "%s%s%s", targ,
1.88 mouring 1046: strcmp(targ, "/") ? "/" : "", cp);
1.1 deraadt 1047: np = namebuf;
1048: } else
1049: np = targ;
1.12 aaron 1050: curfile = cp;
1.1 deraadt 1051: exists = stat(np, &stb) == 0;
1052: if (buf[0] == 'D') {
1053: int mod_flag = pflag;
1.114 markus 1054: if (!iamrecursive)
1055: SCREWUP("received directory without -r");
1.1 deraadt 1056: if (exists) {
1057: if (!S_ISDIR(stb.st_mode)) {
1058: errno = ENOTDIR;
1059: goto bad;
1060: }
1061: if (pflag)
1.18 markus 1062: (void) chmod(np, mode);
1.1 deraadt 1063: } else {
1.18 markus 1064: /* Handle copying from a read-only
1065: directory */
1.1 deraadt 1066: mod_flag = 1;
1067: if (mkdir(np, mode | S_IRWXU) < 0)
1068: goto bad;
1069: }
1.58 danh 1070: vect[0] = xstrdup(np);
1.1 deraadt 1071: sink(1, vect);
1072: if (setimes) {
1073: setimes = 0;
1.59 deraadt 1074: if (utimes(vect[0], tv) < 0)
1.18 markus 1075: run_err("%s: set times: %s",
1.59 deraadt 1076: vect[0], strerror(errno));
1.1 deraadt 1077: }
1078: if (mod_flag)
1.59 deraadt 1079: (void) chmod(vect[0], mode);
1.173 djm 1080: free(vect[0]);
1.1 deraadt 1081: continue;
1082: }
1083: omode = mode;
1.174 dtucker 1084: mode |= S_IWUSR;
1.71 markus 1085: if ((ofd = open(np, O_WRONLY|O_CREAT, mode)) < 0) {
1.1 deraadt 1086: bad: run_err("%s: %s", np, strerror(errno));
1087: continue;
1088: }
1.107 deraadt 1089: (void) atomicio(vwrite, remout, "", 1);
1.161 djm 1090: if ((bp = allocbuf(&buffer, ofd, COPY_BUFLEN)) == NULL) {
1.18 markus 1091: (void) close(ofd);
1.1 deraadt 1092: continue;
1093: }
1094: cp = bp->buf;
1095: wrerr = NO;
1.7 deraadt 1096:
1.12 aaron 1097: statbytes = 0;
1.97 fgsch 1098: if (showprogress)
1099: start_progress_meter(curfile, size, &statbytes);
1.161 djm 1100: set_nonblock(remin);
1101: for (count = i = 0; i < size; i += bp->cnt) {
1102: amt = bp->cnt;
1.1 deraadt 1103: if (i + amt > size)
1104: amt = size - i;
1105: count += amt;
1106: do {
1.167 djm 1107: j = atomicio6(read, remin, cp, amt,
1108: scpio, &statbytes);
1.122 avsm 1109: if (j == 0) {
1.161 djm 1110: run_err("%s", j != EPIPE ?
1111: strerror(errno) :
1.63 stevesk 1112: "dropped connection");
1.1 deraadt 1113: exit(1);
1114: }
1115: amt -= j;
1116: cp += j;
1117: } while (amt > 0);
1.112 djm 1118:
1.1 deraadt 1119: if (count == bp->cnt) {
1120: /* Keep reading so we stay sync'd up. */
1121: if (wrerr == NO) {
1.122 avsm 1122: if (atomicio(vwrite, ofd, bp->buf,
1123: count) != count) {
1.1 deraadt 1124: wrerr = YES;
1.122 avsm 1125: wrerrno = errno;
1.1 deraadt 1126: }
1127: }
1128: count = 0;
1129: cp = bp->buf;
1130: }
1131: }
1.161 djm 1132: unset_nonblock(remin);
1.1 deraadt 1133: if (count != 0 && wrerr == NO &&
1.122 avsm 1134: atomicio(vwrite, ofd, bp->buf, count) != count) {
1.1 deraadt 1135: wrerr = YES;
1.122 avsm 1136: wrerrno = errno;
1.1 deraadt 1137: }
1.159 djm 1138: if (wrerr == NO && (!exists || S_ISREG(stb.st_mode)) &&
1139: ftruncate(ofd, size) != 0) {
1.1 deraadt 1140: run_err("%s: truncate: %s", np, strerror(errno));
1141: wrerr = DISPLAYED;
1142: }
1143: if (pflag) {
1144: if (exists || omode != mode)
1.116 dtucker 1145: if (fchmod(ofd, omode)) {
1.1 deraadt 1146: run_err("%s: set mode: %s",
1.63 stevesk 1147: np, strerror(errno));
1.116 dtucker 1148: wrerr = DISPLAYED;
1149: }
1.1 deraadt 1150: } else {
1151: if (!exists && omode != mode)
1.116 dtucker 1152: if (fchmod(ofd, omode & ~mask)) {
1.1 deraadt 1153: run_err("%s: set mode: %s",
1.63 stevesk 1154: np, strerror(errno));
1.116 dtucker 1155: wrerr = DISPLAYED;
1156: }
1.1 deraadt 1157: }
1.33 provos 1158: if (close(ofd) == -1) {
1159: wrerr = YES;
1160: wrerrno = errno;
1161: }
1.18 markus 1162: (void) response();
1.185 dtucker 1163: if (showprogress)
1164: stop_progress_meter();
1.1 deraadt 1165: if (setimes && wrerr == NO) {
1166: setimes = 0;
1.40 markus 1167: if (utimes(np, tv) < 0) {
1.1 deraadt 1168: run_err("%s: set times: %s",
1.63 stevesk 1169: np, strerror(errno));
1.1 deraadt 1170: wrerr = DISPLAYED;
1171: }
1172: }
1.18 markus 1173: switch (wrerr) {
1.1 deraadt 1174: case YES:
1175: run_err("%s: %s", np, strerror(wrerrno));
1176: break;
1177: case NO:
1.107 deraadt 1178: (void) atomicio(vwrite, remout, "", 1);
1.1 deraadt 1179: break;
1180: case DISPLAYED:
1181: break;
1182: }
1183: }
1184: screwup:
1185: run_err("protocol error: %s", why);
1186: exit(1);
1187: }
1188:
1189: int
1.86 itojun 1190: response(void)
1.1 deraadt 1191: {
1.186 ! schwarze 1192: char ch, *cp, resp, rbuf[2048], visbuf[2048];
1.1 deraadt 1193:
1.30 deraadt 1194: if (atomicio(read, remin, &resp, sizeof(resp)) != sizeof(resp))
1.1 deraadt 1195: lostconn(0);
1196:
1197: cp = rbuf;
1.18 markus 1198: switch (resp) {
1199: case 0: /* ok */
1.1 deraadt 1200: return (0);
1201: default:
1202: *cp++ = resp;
1203: /* FALLTHROUGH */
1.18 markus 1204: case 1: /* error, followed by error msg */
1205: case 2: /* fatal error, "" */
1.1 deraadt 1206: do {
1.30 deraadt 1207: if (atomicio(read, remin, &ch, sizeof(ch)) != sizeof(ch))
1.1 deraadt 1208: lostconn(0);
1209: *cp++ = ch;
1210: } while (cp < &rbuf[sizeof(rbuf) - 1] && ch != '\n');
1211:
1.186 ! schwarze 1212: if (!iamremote) {
! 1213: cp[-1] = '\0';
! 1214: (void) snmprintf(visbuf, sizeof(visbuf),
! 1215: NULL, "%s\n", rbuf);
! 1216: (void) atomicio(vwrite, STDERR_FILENO,
! 1217: visbuf, strlen(visbuf));
! 1218: }
1.1 deraadt 1219: ++errs;
1220: if (resp == 1)
1221: return (-1);
1222: exit(1);
1223: }
1224: /* NOTREACHED */
1225: }
1226:
1227: void
1.86 itojun 1228: usage(void)
1.1 deraadt 1229: {
1.83 stevesk 1230: (void) fprintf(stderr,
1.170 jmc 1231: "usage: scp [-12346BCpqrv] [-c cipher] [-F ssh_config] [-i identity_file]\n"
1.110 jmc 1232: " [-l limit] [-o ssh_option] [-P port] [-S program]\n"
1.160 sobrado 1233: " [[user@]host1:]file1 ... [[user@]host2:]file2\n");
1.1 deraadt 1234: exit(1);
1235: }
1236:
1237: void
1.18 markus 1238: run_err(const char *fmt,...)
1.1 deraadt 1239: {
1240: static FILE *fp;
1241: va_list ap;
1242:
1243: ++errs;
1.136 biorn 1244: if (fp != NULL || (remout != -1 && (fp = fdopen(remout, "w")))) {
1245: (void) fprintf(fp, "%c", 0x01);
1246: (void) fprintf(fp, "scp: ");
1247: va_start(ap, fmt);
1248: (void) vfprintf(fp, fmt, ap);
1249: va_end(ap);
1250: (void) fprintf(fp, "\n");
1251: (void) fflush(fp);
1252: }
1.18 markus 1253:
1254: if (!iamremote) {
1.73 markus 1255: va_start(ap, fmt);
1.186 ! schwarze 1256: vfmprintf(stderr, fmt, ap);
1.73 markus 1257: va_end(ap);
1.18 markus 1258: fprintf(stderr, "\n");
1259: }
1.1 deraadt 1260: }
1261:
1262: void
1.104 djm 1263: verifydir(char *cp)
1.1 deraadt 1264: {
1265: struct stat stb;
1266:
1267: if (!stat(cp, &stb)) {
1268: if (S_ISDIR(stb.st_mode))
1269: return;
1270: errno = ENOTDIR;
1271: }
1272: run_err("%s: %s", cp, strerror(errno));
1.123 avsm 1273: killchild(0);
1.1 deraadt 1274: }
1275:
1276: int
1.104 djm 1277: okname(char *cp0)
1.1 deraadt 1278: {
1279: int c;
1280: char *cp;
1281:
1282: cp = cp0;
1283: do {
1.75 deraadt 1284: c = (int)*cp;
1.1 deraadt 1285: if (c & 0200)
1286: goto bad;
1.179 deraadt 1287: if (!isalpha(c) && !isdigit((unsigned char)c)) {
1.101 markus 1288: switch (c) {
1289: case '\'':
1290: case '"':
1291: case '`':
1292: case ' ':
1293: case '#':
1294: goto bad;
1295: default:
1296: break;
1297: }
1298: }
1.1 deraadt 1299: } while (*++cp);
1300: return (1);
1301:
1.186 ! schwarze 1302: bad: fmprintf(stderr, "%s: invalid user name\n", cp0);
1.1 deraadt 1303: return (0);
1304: }
1305:
1306: BUF *
1.104 djm 1307: allocbuf(BUF *bp, int fd, int blksize)
1.1 deraadt 1308: {
1309: size_t size;
1310: struct stat stb;
1311:
1312: if (fstat(fd, &stb) < 0) {
1313: run_err("fstat: %s", strerror(errno));
1314: return (0);
1315: }
1.95 markus 1316: size = roundup(stb.st_blksize, blksize);
1317: if (size == 0)
1.18 markus 1318: size = blksize;
1.1 deraadt 1319: if (bp->cnt >= size)
1320: return (bp);
1.18 markus 1321: if (bp->buf == NULL)
1322: bp->buf = xmalloc(size);
1323: else
1.182 deraadt 1324: bp->buf = xreallocarray(bp->buf, 1, size);
1.81 markus 1325: memset(bp->buf, 0, size);
1.1 deraadt 1326: bp->cnt = size;
1327: return (bp);
1328: }
1329:
1330: void
1.104 djm 1331: lostconn(int signo)
1.1 deraadt 1332: {
1333: if (!iamremote)
1.172 dtucker 1334: (void)write(STDERR_FILENO, "lost connection\n", 16);
1.74 markus 1335: if (signo)
1336: _exit(1);
1337: else
1338: exit(1);
1.4 aaron 1339: }
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