Annotation of src/usr.bin/ssh/scp.c, Revision 1.254
1.254 ! djm 1: /* $OpenBSD: scp.c,v 1.253 2023/03/03 03:12:24 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:
1.132 stevesk 74: #include <sys/types.h>
1.161 djm 75: #include <sys/poll.h>
1.132 stevesk 76: #include <sys/wait.h>
1.134 stevesk 77: #include <sys/stat.h>
1.151 stevesk 78: #include <sys/time.h>
1.155 deraadt 79: #include <sys/uio.h>
1.131 stevesk 80:
1.135 stevesk 81: #include <ctype.h>
1.131 stevesk 82: #include <dirent.h>
1.147 stevesk 83: #include <errno.h>
1.144 stevesk 84: #include <fcntl.h>
1.202 djm 85: #include <fnmatch.h>
1.216 djm 86: #include <glob.h>
87: #include <libgen.h>
1.186 schwarze 88: #include <locale.h>
1.143 stevesk 89: #include <pwd.h>
1.133 stevesk 90: #include <signal.h>
1.146 stevesk 91: #include <stdarg.h>
1.189 millert 92: #include <stdint.h>
1.154 stevesk 93: #include <stdio.h>
1.153 stevesk 94: #include <stdlib.h>
1.150 stevesk 95: #include <string.h>
1.149 stevesk 96: #include <time.h>
1.148 stevesk 97: #include <unistd.h>
1.181 deraadt 98: #include <limits.h>
1.250 djm 99: #include <util.h>
1.158 dtucker 100: #include <vis.h>
1.1 deraadt 101:
102: #include "xmalloc.h"
1.193 millert 103: #include "ssh.h"
1.51 markus 104: #include "atomicio.h"
1.50 markus 105: #include "pathnames.h"
1.51 markus 106: #include "log.h"
1.69 mouring 107: #include "misc.h"
1.97 fgsch 108: #include "progressmeter.h"
1.186 schwarze 109: #include "utf8.h"
1.243 djm 110: #include "sftp.h"
1.1 deraadt 111:
1.216 djm 112: #include "sftp-common.h"
113: #include "sftp-client.h"
114:
1.161 djm 115: #define COPY_BUFLEN 16384
116:
1.231 naddy 117: int do_cmd(char *, char *, char *, int, int, char *, int *, int *, pid_t *);
118: int do_cmd2(char *, char *, int, char *, int, int);
1.11 aaron 119:
1.70 mouring 120: /* Struct for addargs */
121: arglist args;
1.168 djm 122: arglist remote_remote_args;
1.41 markus 123:
1.99 markus 124: /* Bandwidth limit */
1.167 djm 125: long long limit_kbps = 0;
126: struct bwlimit bwlimit;
1.99 markus 127:
1.11 aaron 128: /* Name of current file being transferred. */
129: char *curfile;
1.4 aaron 130:
1.1 deraadt 131: /* This is set to non-zero to enable verbose mode. */
1.17 markus 132: int verbose_mode = 0;
1.216 djm 133: LogLevel log_level = SYSLOG_LEVEL_INFO;
1.1 deraadt 134:
1.6 aaron 135: /* This is set to zero if the progressmeter is not desired. */
136: int showprogress = 1;
137:
1.169 markus 138: /*
139: * This is set to non-zero if remote-remote copy should be piped
140: * through this process.
141: */
1.229 djm 142: int throughlocal = 1;
1.169 markus 143:
1.193 millert 144: /* Non-standard port to use for the ssh connection or -1. */
145: int sshport = -1;
146:
1.34 deraadt 147: /* This is the program to execute for the secured connection. ("ssh" or -S) */
1.50 markus 148: char *ssh_program = _PATH_SSH_PROGRAM;
1.34 deraadt 149:
1.92 markus 150: /* This is used to store the pid of ssh_program */
1.105 djm 151: pid_t do_cmd_pid = -1;
1.219 djm 152: pid_t do_cmd_pid2 = -1;
1.105 djm 153:
1.250 djm 154: /* SFTP copy parameters */
155: size_t sftp_copy_buflen;
156: size_t sftp_nrequests;
157:
1.216 djm 158: /* Needed for sftp */
159: volatile sig_atomic_t interrupted = 0;
160:
161: int remote_glob(struct sftp_conn *, const char *, int,
162: int (*)(const char *, int), glob_t *); /* proto for sftp-glob.c */
163:
1.105 djm 164: static void
165: killchild(int signo)
166: {
1.119 dtucker 167: if (do_cmd_pid > 1) {
1.123 avsm 168: kill(do_cmd_pid, signo ? signo : SIGTERM);
1.119 dtucker 169: waitpid(do_cmd_pid, NULL, 0);
170: }
1.219 djm 171: if (do_cmd_pid2 > 1) {
172: kill(do_cmd_pid2, signo ? signo : SIGTERM);
173: waitpid(do_cmd_pid2, NULL, 0);
174: }
1.105 djm 175:
1.123 avsm 176: if (signo)
177: _exit(1);
178: exit(1);
1.105 djm 179: }
1.92 markus 180:
1.166 millert 181: static void
1.219 djm 182: suspone(int pid, int signo)
1.166 millert 183: {
184: int status;
185:
1.219 djm 186: if (pid > 1) {
187: kill(pid, signo);
188: while (waitpid(pid, &status, WUNTRACED) == -1 &&
1.166 millert 189: errno == EINTR)
190: ;
191: }
192: }
193:
1.219 djm 194: static void
195: suspchild(int signo)
196: {
197: suspone(do_cmd_pid, signo);
198: suspone(do_cmd_pid2, signo);
199: kill(getpid(), SIGSTOP);
200: }
201:
1.129 djm 202: static int
203: do_local_cmd(arglist *a)
204: {
205: u_int i;
206: int status;
207: pid_t pid;
208:
209: if (a->num == 0)
210: fatal("do_local_cmd: no arguments");
211:
212: if (verbose_mode) {
213: fprintf(stderr, "Executing:");
214: for (i = 0; i < a->num; i++)
1.186 schwarze 215: fmprintf(stderr, " %s", a->list[i]);
1.129 djm 216: fprintf(stderr, "\n");
217: }
218: if ((pid = fork()) == -1)
219: fatal("do_local_cmd: fork: %s", strerror(errno));
220:
221: if (pid == 0) {
222: execvp(a->list[0], a->list);
223: perror(a->list[0]);
224: exit(1);
225: }
226:
227: do_cmd_pid = pid;
1.207 dtucker 228: ssh_signal(SIGTERM, killchild);
229: ssh_signal(SIGINT, killchild);
230: ssh_signal(SIGHUP, killchild);
1.129 djm 231:
232: while (waitpid(pid, &status, 0) == -1)
233: if (errno != EINTR)
234: fatal("do_local_cmd: waitpid: %s", strerror(errno));
235:
236: do_cmd_pid = -1;
237:
238: if (!WIFEXITED(status) || WEXITSTATUS(status) != 0)
239: return (-1);
240:
241: return (0);
242: }
243:
1.20 markus 244: /*
245: * This function executes the given command as the specified user on the
246: * given host. This returns < 0 if execution fails, and >= 0 otherwise. This
247: * assigns the input and output file descriptors on success.
248: */
1.1 deraadt 249:
1.27 markus 250: int
1.231 naddy 251: do_cmd(char *program, char *host, char *remuser, int port, int subsystem,
252: char *cmd, int *fdin, int *fdout, pid_t *pid)
1.1 deraadt 253: {
1.252 millert 254: int sv[2];
1.18 markus 255:
256: if (verbose_mode)
1.186 schwarze 257: fmprintf(stderr,
1.78 deraadt 258: "Executing: program %s host %s, user %s, command %s\n",
1.216 djm 259: program, host,
1.78 deraadt 260: remuser ? remuser : "(unspecified)", cmd);
1.18 markus 261:
1.193 millert 262: if (port == -1)
263: port = sshport;
264:
1.18 markus 265: /* Create a socket pair for communicating with ssh. */
1.252 millert 266: if (socketpair(AF_UNIX, SOCK_STREAM, 0, sv) == -1)
267: fatal("socketpair: %s", strerror(errno));
1.166 millert 268:
1.207 dtucker 269: ssh_signal(SIGTSTP, suspchild);
270: ssh_signal(SIGTTIN, suspchild);
271: ssh_signal(SIGTTOU, suspchild);
1.18 markus 272:
1.106 nino 273: /* Fork a child to execute the command on the remote host using ssh. */
1.219 djm 274: *pid = fork();
1.252 millert 275: switch (*pid) {
276: case -1:
277: fatal("fork: %s", strerror(errno));
278: case 0:
1.18 markus 279: /* Child. */
1.252 millert 280: if (dup2(sv[0], STDIN_FILENO) == -1 ||
281: dup2(sv[0], STDOUT_FILENO) == -1) {
282: perror("dup2");
283: _exit(1);
284: }
285: close(sv[0]);
286: close(sv[1]);
1.216 djm 287: replacearg(&args, 0, "%s", program);
1.193 millert 288: if (port != -1) {
289: addargs(&args, "-p");
290: addargs(&args, "%d", port);
291: }
1.165 guenther 292: if (remuser != NULL) {
293: addargs(&args, "-l");
294: addargs(&args, "%s", remuser);
295: }
1.231 naddy 296: if (subsystem)
297: addargs(&args, "-s");
1.165 guenther 298: addargs(&args, "--");
1.70 mouring 299: addargs(&args, "%s", host);
300: addargs(&args, "%s", cmd);
1.18 markus 301:
1.216 djm 302: execvp(program, args.list);
303: perror(program);
1.252 millert 304: _exit(1);
305: default:
306: /* Parent. Close the other side, and return the local side. */
307: close(sv[0]);
308: *fdin = sv[1];
309: *fdout = sv[1];
310: ssh_signal(SIGTERM, killchild);
311: ssh_signal(SIGINT, killchild);
312: ssh_signal(SIGHUP, killchild);
313: return 0;
1.18 markus 314: }
1.1 deraadt 315: }
316:
1.169 markus 317: /*
1.196 djm 318: * This function executes a command similar to do_cmd(), but expects the
1.169 markus 319: * input and output descriptors to be setup by a previous call to do_cmd().
320: * This way the input and output of two commands can be connected.
321: */
322: int
1.219 djm 323: do_cmd2(char *host, char *remuser, int port, char *cmd,
324: int fdin, int fdout)
1.169 markus 325: {
1.219 djm 326: int status;
1.169 markus 327: pid_t pid;
328:
329: if (verbose_mode)
1.186 schwarze 330: fmprintf(stderr,
1.169 markus 331: "Executing: 2nd program %s host %s, user %s, command %s\n",
332: ssh_program, host,
333: remuser ? remuser : "(unspecified)", cmd);
334:
1.193 millert 335: if (port == -1)
336: port = sshport;
337:
1.169 markus 338: /* Fork a child to execute the command on the remote host using ssh. */
339: pid = fork();
340: if (pid == 0) {
1.253 dtucker 341: if (dup2(fdin, 0) == -1)
342: perror("dup2");
343: if (dup2(fdout, 1) == -1)
344: perror("dup2");
1.169 markus 345:
346: replacearg(&args, 0, "%s", ssh_program);
1.193 millert 347: if (port != -1) {
348: addargs(&args, "-p");
349: addargs(&args, "%d", port);
350: }
1.169 markus 351: if (remuser != NULL) {
352: addargs(&args, "-l");
353: addargs(&args, "%s", remuser);
354: }
1.208 markus 355: addargs(&args, "-oBatchMode=yes");
1.169 markus 356: addargs(&args, "--");
357: addargs(&args, "%s", host);
358: addargs(&args, "%s", cmd);
359:
360: execvp(ssh_program, args.list);
361: perror(ssh_program);
362: exit(1);
363: } else if (pid == -1) {
364: fatal("fork: %s", strerror(errno));
365: }
366: while (waitpid(pid, &status, 0) == -1)
367: if (errno != EINTR)
368: fatal("do_cmd2: waitpid: %s", strerror(errno));
369: return 0;
370: }
371:
1.1 deraadt 372: typedef struct {
1.124 djm 373: size_t cnt;
1.1 deraadt 374: char *buf;
375: } BUF;
376:
1.18 markus 377: BUF *allocbuf(BUF *, int, int);
378: void lostconn(int);
379: int okname(char *);
1.211 millert 380: void run_err(const char *,...)
381: __attribute__((__format__ (printf, 1, 2)))
382: __attribute__((__nonnull__ (1)));
383: int note_err(const char *,...)
384: __attribute__((__format__ (printf, 1, 2)));
1.18 markus 385: void verifydir(char *);
1.1 deraadt 386:
387: struct passwd *pwd;
1.18 markus 388: uid_t userid;
1.219 djm 389: int errs, remin, remout, remin2, remout2;
1.202 djm 390: int Tflag, pflag, iamremote, iamrecursive, targetshouldbedirectory;
1.1 deraadt 391:
392: #define CMDNEEDS 64
393: char cmd[CMDNEEDS]; /* must hold "rcp -r -p -d\0" */
394:
1.216 djm 395: enum scp_mode_e {
396: MODE_SCP,
397: MODE_SFTP
398: };
399:
1.18 markus 400: int response(void);
401: void rsource(char *, struct stat *);
1.202 djm 402: void sink(int, char *[], const char *);
1.18 markus 403: void source(int, char *[]);
1.216 djm 404: void tolocal(int, char *[], enum scp_mode_e, char *sftp_direct);
405: void toremote(int, char *[], enum scp_mode_e, char *sftp_direct);
1.18 markus 406: void usage(void);
1.1 deraadt 407:
1.228 djm 408: void source_sftp(int, char *, char *, struct sftp_conn *);
1.216 djm 409: void sink_sftp(int, char *, const char *, struct sftp_conn *);
1.219 djm 410: void throughlocal_sftp(struct sftp_conn *, struct sftp_conn *,
1.228 djm 411: char *, char *);
1.216 djm 412:
1.1 deraadt 413: int
1.104 djm 414: main(int argc, char **argv)
1.1 deraadt 415: {
1.250 djm 416: int ch, fflag, tflag, status, r, n;
1.216 djm 417: char **newargv, *argv0;
1.167 djm 418: const char *errstr;
1.1 deraadt 419: extern char *optarg;
420: extern int optind;
1.246 deraadt 421: enum scp_mode_e mode = MODE_SFTP;
1.216 djm 422: char *sftp_direct = NULL;
1.250 djm 423: long long llv;
1.126 djm 424:
425: /* Ensure that fds 0, 1 and 2 are open or directed to /dev/null */
426: sanitise_stdfd();
1.145 djm 427:
1.186 schwarze 428: setlocale(LC_CTYPE, "");
429:
1.145 djm 430: /* Copy argv, because we modify it */
1.216 djm 431: argv0 = argv[0];
1.187 deraadt 432: newargv = xcalloc(MAXIMUM(argc + 1, 1), sizeof(*newargv));
1.145 djm 433: for (n = 0; n < argc; n++)
434: newargv[n] = xstrdup(argv[n]);
435: argv = newargv;
1.1 deraadt 436:
1.235 djm 437: log_init(argv0, log_level, SYSLOG_FACILITY_USER, 2);
1.218 djm 438:
1.129 djm 439: memset(&args, '\0', sizeof(args));
1.168 djm 440: memset(&remote_remote_args, '\0', sizeof(remote_remote_args));
441: args.list = remote_remote_args.list = NULL;
1.129 djm 442: addargs(&args, "%s", ssh_program);
1.70 mouring 443: addargs(&args, "-x");
1.168 djm 444: addargs(&args, "-oPermitLocalCommand=no");
445: addargs(&args, "-oClearAllForwardings=yes");
1.195 djm 446: addargs(&args, "-oRemoteCommand=none");
447: addargs(&args, "-oRequestTTY=no");
1.41 markus 448:
1.202 djm 449: fflag = Tflag = tflag = 0;
450: while ((ch = getopt(argc, argv,
1.250 djm 451: "12346ABCTdfOpqRrstvD:F:J:M:P:S:c:i:l:o:X:")) != -1) {
1.18 markus 452: switch (ch) {
453: /* User-visible flags. */
1.100 markus 454: case '1':
1.190 djm 455: fatal("SSH protocol v.1 is no longer supported");
456: break;
1.100 markus 457: case '2':
1.190 djm 458: /* Ignored */
459: break;
1.212 djm 460: case 'A':
1.23 markus 461: case '4':
1.41 markus 462: case '6':
463: case 'C':
1.70 mouring 464: addargs(&args, "-%c", ch);
1.168 djm 465: addargs(&remote_remote_args, "-%c", ch);
1.41 markus 466: break;
1.216 djm 467: case 'D':
468: sftp_direct = optarg;
469: break;
1.169 markus 470: case '3':
471: throughlocal = 1;
472: break;
1.229 djm 473: case 'R':
474: throughlocal = 0;
475: break;
1.41 markus 476: case 'o':
477: case 'c':
478: case 'i':
1.83 stevesk 479: case 'F':
1.199 tb 480: case 'J':
1.168 djm 481: addargs(&remote_remote_args, "-%c", ch);
482: addargs(&remote_remote_args, "%s", optarg);
1.165 guenther 483: addargs(&args, "-%c", ch);
484: addargs(&args, "%s", optarg);
1.23 markus 485: break;
1.230 djm 486: case 'O':
487: mode = MODE_SCP;
488: break;
489: case 's':
490: mode = MODE_SFTP;
491: break;
1.41 markus 492: case 'P':
1.193 millert 493: sshport = a2port(optarg);
494: if (sshport <= 0)
495: fatal("bad port \"%s\"\n", optarg);
1.41 markus 496: break;
497: case 'B':
1.168 djm 498: addargs(&remote_remote_args, "-oBatchmode=yes");
499: addargs(&args, "-oBatchmode=yes");
1.23 markus 500: break;
1.99 markus 501: case 'l':
1.167 djm 502: limit_kbps = strtonum(optarg, 1, 100 * 1024 * 1024,
503: &errstr);
504: if (errstr != NULL)
1.99 markus 505: usage();
1.167 djm 506: limit_kbps *= 1024; /* kbps */
507: bandwidth_limit_init(&bwlimit, limit_kbps, COPY_BUFLEN);
1.99 markus 508: break;
1.1 deraadt 509: case 'p':
510: pflag = 1;
511: break;
512: case 'r':
513: iamrecursive = 1;
514: break;
1.34 deraadt 515: case 'S':
1.41 markus 516: ssh_program = xstrdup(optarg);
517: break;
518: case 'v':
1.72 markus 519: addargs(&args, "-v");
1.168 djm 520: addargs(&remote_remote_args, "-v");
1.216 djm 521: if (verbose_mode == 0)
522: log_level = SYSLOG_LEVEL_DEBUG1;
523: else if (log_level < SYSLOG_LEVEL_DEBUG3)
524: log_level++;
1.41 markus 525: verbose_mode = 1;
526: break;
527: case 'q':
1.111 dtucker 528: addargs(&args, "-q");
1.168 djm 529: addargs(&remote_remote_args, "-q");
1.41 markus 530: showprogress = 0;
1.34 deraadt 531: break;
1.250 djm 532: case 'X':
533: /* Please keep in sync with sftp.c -X */
534: if (strncmp(optarg, "buffer=", 7) == 0) {
535: r = scan_scaled(optarg + 7, &llv);
536: if (r == 0 && (llv <= 0 || llv > 256 * 1024)) {
537: r = -1;
538: errno = EINVAL;
539: }
540: if (r == -1) {
541: fatal("Invalid buffer size \"%s\": %s",
542: optarg + 7, strerror(errno));
543: }
544: sftp_copy_buflen = (size_t)llv;
545: } else if (strncmp(optarg, "nrequests=", 10) == 0) {
546: llv = strtonum(optarg + 10, 1, 256 * 1024,
547: &errstr);
548: if (errstr != NULL) {
549: fatal("Invalid number of requests "
550: "\"%s\": %s", optarg + 10, errstr);
551: }
552: sftp_nrequests = (size_t)llv;
553: } else {
554: fatal("Invalid -X option");
555: }
556: break;
1.34 deraadt 557:
1.18 markus 558: /* Server options. */
1.1 deraadt 559: case 'd':
560: targetshouldbedirectory = 1;
561: break;
1.18 markus 562: case 'f': /* "from" */
1.1 deraadt 563: iamremote = 1;
564: fflag = 1;
565: break;
1.18 markus 566: case 't': /* "to" */
1.1 deraadt 567: iamremote = 1;
568: tflag = 1;
569: break;
1.202 djm 570: case 'T':
571: Tflag = 1;
572: break;
1.1 deraadt 573: default:
574: usage();
575: }
1.202 djm 576: }
1.1 deraadt 577: argc -= optind;
578: argv += optind;
579:
1.235 djm 580: log_init(argv0, log_level, SYSLOG_FACILITY_USER, 2);
1.216 djm 581:
1.212 djm 582: /* Do this last because we want the user to be able to override it */
583: addargs(&args, "-oForwardAgent=no");
584:
1.218 djm 585: if (iamremote)
586: mode = MODE_SCP;
1.216 djm 587:
1.1 deraadt 588: if ((pwd = getpwuid(userid = getuid())) == NULL)
1.108 deraadt 589: fatal("unknown user %u", (u_int) userid);
1.1 deraadt 590:
1.156 djm 591: if (!isatty(STDOUT_FILENO))
1.7 deraadt 592: showprogress = 0;
1.184 deraadt 593:
594: if (pflag) {
595: /* Cannot pledge: -p allows setuid/setgid files... */
596: } else {
597: if (pledge("stdio rpath wpath cpath fattr tty proc exec",
598: NULL) == -1) {
599: perror("pledge");
600: exit(1);
601: }
602: }
1.7 deraadt 603:
1.1 deraadt 604: remin = STDIN_FILENO;
605: remout = STDOUT_FILENO;
606:
1.52 stevesk 607: if (fflag) {
1.18 markus 608: /* Follow "protocol", send data. */
609: (void) response();
1.1 deraadt 610: source(argc, argv);
611: exit(errs != 0);
612: }
1.18 markus 613: if (tflag) {
614: /* Receive data. */
1.202 djm 615: sink(argc, argv, NULL);
1.1 deraadt 616: exit(errs != 0);
617: }
618: if (argc < 2)
619: usage();
620: if (argc > 2)
621: targetshouldbedirectory = 1;
622:
623: remin = remout = -1;
1.92 markus 624: do_cmd_pid = -1;
1.1 deraadt 625: /* Command to be executed on remote system using "ssh". */
1.55 deraadt 626: (void) snprintf(cmd, sizeof cmd, "scp%s%s%s%s",
627: verbose_mode ? " -v" : "",
1.35 deraadt 628: iamrecursive ? " -r" : "", pflag ? " -p" : "",
629: targetshouldbedirectory ? " -d" : "");
1.1 deraadt 630:
1.207 dtucker 631: (void) ssh_signal(SIGPIPE, lostconn);
1.1 deraadt 632:
1.193 millert 633: if (colon(argv[argc - 1])) /* Dest is remote host. */
1.216 djm 634: toremote(argc, argv, mode, sftp_direct);
1.1 deraadt 635: else {
636: if (targetshouldbedirectory)
637: verifydir(argv[argc - 1]);
1.216 djm 638: tolocal(argc, argv, mode, sftp_direct); /* Dest is local host. */
1.92 markus 639: }
640: /*
641: * Finally check the exit status of the ssh process, if one was forked
1.164 stevesk 642: * and no error has occurred yet
1.92 markus 643: */
1.234 djm 644: if (do_cmd_pid != -1 && (mode == MODE_SFTP || errs == 0)) {
1.92 markus 645: if (remin != -1)
646: (void) close(remin);
647: if (remout != -1)
648: (void) close(remout);
649: if (waitpid(do_cmd_pid, &status, 0) == -1)
650: errs = 1;
651: else {
652: if (!WIFEXITED(status) || WEXITSTATUS(status) != 0)
653: errs = 1;
654: }
1.1 deraadt 655: }
656: exit(errs != 0);
657: }
658:
1.167 djm 659: /* Callback from atomicio6 to update progress meter and limit bandwidth */
660: static int
661: scpio(void *_cnt, size_t s)
1.161 djm 662: {
1.167 djm 663: off_t *cnt = (off_t *)_cnt;
664:
665: *cnt += s;
1.201 dtucker 666: refresh_progress_meter(0);
1.167 djm 667: if (limit_kbps > 0)
668: bandwidth_limit(&bwlimit, s);
669: return 0;
1.161 djm 670: }
671:
1.176 guenther 672: static int
673: do_times(int fd, int verb, const struct stat *sb)
674: {
675: /* strlen(2^64) == 20; strlen(10^6) == 7 */
676: char buf[(20 + 7 + 2) * 2 + 2];
677:
678: (void)snprintf(buf, sizeof(buf), "T%llu 0 %llu 0\n",
679: (unsigned long long) (sb->st_mtime < 0 ? 0 : sb->st_mtime),
680: (unsigned long long) (sb->st_atime < 0 ? 0 : sb->st_atime));
681: if (verb) {
682: fprintf(stderr, "File mtime %lld atime %lld\n",
683: (long long)sb->st_mtime, (long long)sb->st_atime);
684: fprintf(stderr, "Sending file timestamps: %s", buf);
685: }
686: (void) atomicio(vwrite, fd, buf, strlen(buf));
687: return (response());
688: }
689:
1.194 millert 690: static int
691: parse_scp_uri(const char *uri, char **userp, char **hostp, int *portp,
1.214 djm 692: char **pathp)
1.194 millert 693: {
694: int r;
695:
696: r = parse_uri("scp", uri, userp, hostp, portp, pathp);
697: if (r == 0 && *pathp == NULL)
698: *pathp = xstrdup(".");
699: return r;
700: }
701:
1.204 djm 702: /* Appends a string to an array; returns 0 on success, -1 on alloc failure */
703: static int
704: append(char *cp, char ***ap, size_t *np)
705: {
706: char **tmp;
707:
708: if ((tmp = reallocarray(*ap, *np + 1, sizeof(*tmp))) == NULL)
709: return -1;
710: tmp[(*np)] = cp;
711: (*np)++;
712: *ap = tmp;
713: return 0;
714: }
715:
716: /*
717: * Finds the start and end of the first brace pair in the pattern.
718: * returns 0 on success or -1 for invalid patterns.
719: */
720: static int
721: find_brace(const char *pattern, int *startp, int *endp)
722: {
723: int i;
724: int in_bracket, brace_level;
725:
726: *startp = *endp = -1;
727: in_bracket = brace_level = 0;
728: for (i = 0; i < INT_MAX && *endp < 0 && pattern[i] != '\0'; i++) {
729: switch (pattern[i]) {
730: case '\\':
731: /* skip next character */
732: if (pattern[i + 1] != '\0')
733: i++;
734: break;
735: case '[':
736: in_bracket = 1;
737: break;
738: case ']':
739: in_bracket = 0;
740: break;
741: case '{':
742: if (in_bracket)
743: break;
744: if (pattern[i + 1] == '}') {
745: /* Protect a single {}, for find(1), like csh */
746: i++; /* skip */
747: break;
748: }
749: if (*startp == -1)
750: *startp = i;
751: brace_level++;
752: break;
753: case '}':
754: if (in_bracket)
755: break;
756: if (*startp < 0) {
757: /* Unbalanced brace */
758: return -1;
759: }
760: if (--brace_level <= 0)
761: *endp = i;
762: break;
763: }
764: }
765: /* unbalanced brackets/braces */
766: if (*endp < 0 && (*startp >= 0 || in_bracket))
767: return -1;
768: return 0;
769: }
770:
771: /*
772: * Assembles and records a successfully-expanded pattern, returns -1 on
773: * alloc failure.
774: */
775: static int
776: emit_expansion(const char *pattern, int brace_start, int brace_end,
777: int sel_start, int sel_end, char ***patternsp, size_t *npatternsp)
778: {
779: char *cp;
780: int o = 0, tail_len = strlen(pattern + brace_end + 1);
781:
782: if ((cp = malloc(brace_start + (sel_end - sel_start) +
783: tail_len + 1)) == NULL)
784: return -1;
785:
786: /* Pattern before initial brace */
787: if (brace_start > 0) {
788: memcpy(cp, pattern, brace_start);
789: o = brace_start;
790: }
791: /* Current braced selection */
792: if (sel_end - sel_start > 0) {
793: memcpy(cp + o, pattern + sel_start,
794: sel_end - sel_start);
795: o += sel_end - sel_start;
796: }
797: /* Remainder of pattern after closing brace */
798: if (tail_len > 0) {
799: memcpy(cp + o, pattern + brace_end + 1, tail_len);
800: o += tail_len;
801: }
802: cp[o] = '\0';
803: if (append(cp, patternsp, npatternsp) != 0) {
804: free(cp);
805: return -1;
806: }
807: return 0;
808: }
809:
810: /*
811: * Expand the first encountered brace in pattern, appending the expanded
812: * patterns it yielded to the *patternsp array.
813: *
814: * Returns 0 on success or -1 on allocation failure.
815: *
816: * Signals whether expansion was performed via *expanded and whether
817: * pattern was invalid via *invalid.
818: */
819: static int
820: brace_expand_one(const char *pattern, char ***patternsp, size_t *npatternsp,
821: int *expanded, int *invalid)
822: {
823: int i;
824: int in_bracket, brace_start, brace_end, brace_level;
825: int sel_start, sel_end;
826:
827: *invalid = *expanded = 0;
828:
829: if (find_brace(pattern, &brace_start, &brace_end) != 0) {
830: *invalid = 1;
831: return 0;
832: } else if (brace_start == -1)
833: return 0;
834:
835: in_bracket = brace_level = 0;
836: for (i = sel_start = brace_start + 1; i < brace_end; i++) {
837: switch (pattern[i]) {
838: case '{':
839: if (in_bracket)
840: break;
841: brace_level++;
842: break;
843: case '}':
844: if (in_bracket)
845: break;
846: brace_level--;
847: break;
848: case '[':
849: in_bracket = 1;
850: break;
851: case ']':
852: in_bracket = 0;
853: break;
854: case '\\':
855: if (i < brace_end - 1)
856: i++; /* skip */
857: break;
858: }
859: if (pattern[i] == ',' || i == brace_end - 1) {
860: if (in_bracket || brace_level > 0)
861: continue;
862: /* End of a selection, emit an expanded pattern */
863:
864: /* Adjust end index for last selection */
865: sel_end = (i == brace_end - 1) ? brace_end : i;
866: if (emit_expansion(pattern, brace_start, brace_end,
867: sel_start, sel_end, patternsp, npatternsp) != 0)
868: return -1;
869: /* move on to the next selection */
870: sel_start = i + 1;
871: continue;
872: }
873: }
874: if (in_bracket || brace_level > 0) {
875: *invalid = 1;
876: return 0;
877: }
878: /* success */
879: *expanded = 1;
880: return 0;
881: }
882:
883: /* Expand braces from pattern. Returns 0 on success, -1 on failure */
884: static int
885: brace_expand(const char *pattern, char ***patternsp, size_t *npatternsp)
886: {
887: char *cp, *cp2, **active = NULL, **done = NULL;
888: size_t i, nactive = 0, ndone = 0;
889: int ret = -1, invalid = 0, expanded = 0;
890:
891: *patternsp = NULL;
892: *npatternsp = 0;
893:
894: /* Start the worklist with the original pattern */
895: if ((cp = strdup(pattern)) == NULL)
896: return -1;
897: if (append(cp, &active, &nactive) != 0) {
898: free(cp);
899: return -1;
900: }
901: while (nactive > 0) {
902: cp = active[nactive - 1];
903: nactive--;
904: if (brace_expand_one(cp, &active, &nactive,
905: &expanded, &invalid) == -1) {
906: free(cp);
907: goto fail;
908: }
909: if (invalid)
1.213 djm 910: fatal_f("invalid brace pattern \"%s\"", cp);
1.204 djm 911: if (expanded) {
912: /*
913: * Current entry expanded to new entries on the
914: * active list; discard the progenitor pattern.
915: */
916: free(cp);
917: continue;
918: }
919: /*
920: * Pattern did not expand; append the finename component to
921: * the completed list
922: */
923: if ((cp2 = strrchr(cp, '/')) != NULL)
924: *cp2++ = '\0';
925: else
926: cp2 = cp;
927: if (append(xstrdup(cp2), &done, &ndone) != 0) {
928: free(cp);
929: goto fail;
930: }
931: free(cp);
932: }
933: /* success */
934: *patternsp = done;
935: *npatternsp = ndone;
936: done = NULL;
937: ndone = 0;
938: ret = 0;
939: fail:
940: for (i = 0; i < nactive; i++)
941: free(active[i]);
942: free(active);
943: for (i = 0; i < ndone; i++)
944: free(done[i]);
945: free(done);
946: return ret;
947: }
948:
1.216 djm 949: static struct sftp_conn *
1.219 djm 950: do_sftp_connect(char *host, char *user, int port, char *sftp_direct,
951: int *reminp, int *remoutp, int *pidp)
1.216 djm 952: {
953: if (sftp_direct == NULL) {
1.231 naddy 954: if (do_cmd(ssh_program, host, user, port, 1, "sftp",
1.219 djm 955: reminp, remoutp, pidp) < 0)
1.216 djm 956: return NULL;
957:
958: } else {
1.247 djm 959: freeargs(&args);
1.216 djm 960: addargs(&args, "sftp-server");
1.231 naddy 961: if (do_cmd(sftp_direct, host, NULL, -1, 0, "sftp",
1.219 djm 962: reminp, remoutp, pidp) < 0)
1.216 djm 963: return NULL;
964: }
1.250 djm 965: return do_init(*reminp, *remoutp,
966: sftp_copy_buflen, sftp_nrequests, limit_kbps);
1.216 djm 967: }
968:
1.1 deraadt 969: void
1.216 djm 970: toremote(int argc, char **argv, enum scp_mode_e mode, char *sftp_direct)
1.1 deraadt 971: {
1.193 millert 972: char *suser = NULL, *host = NULL, *src = NULL;
973: char *bp, *tuser, *thost, *targ;
974: int sport = -1, tport = -1;
1.219 djm 975: struct sftp_conn *conn = NULL, *conn2 = NULL;
1.129 djm 976: arglist alist;
1.219 djm 977: int i, r, status;
1.254 ! djm 978: struct stat sb;
1.168 djm 979: u_int j;
1.129 djm 980:
981: memset(&alist, '\0', sizeof(alist));
982: alist.list = NULL;
1.1 deraadt 983:
1.193 millert 984: /* Parse target */
1.194 millert 985: r = parse_scp_uri(argv[argc - 1], &tuser, &thost, &tport, &targ);
986: if (r == -1) {
987: fmprintf(stderr, "%s: invalid uri\n", argv[argc - 1]);
988: ++errs;
989: goto out;
990: }
1.193 millert 991: if (r != 0) {
992: if (parse_user_host_path(argv[argc - 1], &tuser, &thost,
1.194 millert 993: &targ) == -1) {
994: fmprintf(stderr, "%s: invalid target\n", argv[argc - 1]);
995: ++errs;
1.193 millert 996: goto out;
1.194 millert 997: }
1.129 djm 998: }
999:
1.193 millert 1000: /* Parse source files */
1.1 deraadt 1001: for (i = 0; i < argc - 1; i++) {
1.193 millert 1002: free(suser);
1003: free(host);
1004: free(src);
1.194 millert 1005: r = parse_scp_uri(argv[i], &suser, &host, &sport, &src);
1006: if (r == -1) {
1007: fmprintf(stderr, "%s: invalid uri\n", argv[i]);
1008: ++errs;
1009: continue;
1010: }
1011: if (r != 0) {
1.193 millert 1012: parse_user_host_path(argv[i], &suser, &host, &src);
1.194 millert 1013: }
1.193 millert 1014: if (suser != NULL && !okname(suser)) {
1015: ++errs;
1016: continue;
1017: }
1018: if (host && throughlocal) { /* extended remote to remote */
1.219 djm 1019: if (mode == MODE_SFTP) {
1020: if (remin == -1) {
1021: /* Connect to dest now */
1022: conn = do_sftp_connect(thost, tuser,
1023: tport, sftp_direct,
1024: &remin, &remout, &do_cmd_pid);
1025: if (conn == NULL) {
1026: fatal("Unable to open "
1027: "destination connection");
1028: }
1029: debug3_f("origin in %d out %d pid %ld",
1030: remin, remout, (long)do_cmd_pid);
1031: }
1032: /*
1033: * XXX remember suser/host/sport and only
1034: * reconnect if they change between arguments.
1035: * would save reconnections for cases like
1036: * scp -3 hosta:/foo hosta:/bar hostb:
1037: */
1038: /* Connect to origin now */
1039: conn2 = do_sftp_connect(host, suser,
1040: sport, sftp_direct,
1041: &remin2, &remout2, &do_cmd_pid2);
1042: if (conn2 == NULL) {
1043: fatal("Unable to open "
1044: "source connection");
1045: }
1046: debug3_f("destination in %d out %d pid %ld",
1047: remin2, remout2, (long)do_cmd_pid2);
1.228 djm 1048: throughlocal_sftp(conn2, conn, src, targ);
1.219 djm 1049: (void) close(remin2);
1050: (void) close(remout2);
1051: remin2 = remout2 = -1;
1052: if (waitpid(do_cmd_pid2, &status, 0) == -1)
1053: ++errs;
1054: else if (!WIFEXITED(status) ||
1055: WEXITSTATUS(status) != 0)
1056: ++errs;
1057: do_cmd_pid2 = -1;
1058: continue;
1059: } else {
1060: xasprintf(&bp, "%s -f %s%s", cmd,
1061: *src == '-' ? "-- " : "", src);
1.231 naddy 1062: if (do_cmd(ssh_program, host, suser, sport, 0,
1.219 djm 1063: bp, &remin, &remout, &do_cmd_pid) < 0)
1064: exit(1);
1065: free(bp);
1066: xasprintf(&bp, "%s -t %s%s", cmd,
1067: *targ == '-' ? "-- " : "", targ);
1068: if (do_cmd2(thost, tuser, tport, bp,
1069: remin, remout) < 0)
1070: exit(1);
1071: free(bp);
1072: (void) close(remin);
1073: (void) close(remout);
1074: remin = remout = -1;
1075: }
1.193 millert 1076: } else if (host) { /* standard remote to remote */
1.215 djm 1077: /*
1078: * Second remote user is passed to first remote side
1079: * via scp command-line. Ensure it contains no obvious
1080: * shell characters.
1081: */
1082: if (tuser != NULL && !okname(tuser)) {
1083: ++errs;
1084: continue;
1085: }
1.193 millert 1086: if (tport != -1 && tport != SSH_DEFAULT_PORT) {
1087: /* This would require the remote support URIs */
1088: fatal("target port not supported with two "
1.232 naddy 1089: "remote hosts and the -R option");
1.193 millert 1090: }
1091:
1.129 djm 1092: freeargs(&alist);
1093: addargs(&alist, "%s", ssh_program);
1094: addargs(&alist, "-x");
1.168 djm 1095: addargs(&alist, "-oClearAllForwardings=yes");
1.129 djm 1096: addargs(&alist, "-n");
1.168 djm 1097: for (j = 0; j < remote_remote_args.num; j++) {
1098: addargs(&alist, "%s",
1099: remote_remote_args.list[j]);
1100: }
1.193 millert 1101:
1102: if (sport != -1) {
1103: addargs(&alist, "-p");
1104: addargs(&alist, "%d", sport);
1105: }
1106: if (suser) {
1.129 djm 1107: addargs(&alist, "-l");
1108: addargs(&alist, "%s", suser);
1.23 markus 1109: }
1.165 guenther 1110: addargs(&alist, "--");
1.129 djm 1111: addargs(&alist, "%s", host);
1112: addargs(&alist, "%s", cmd);
1113: addargs(&alist, "%s", src);
1114: addargs(&alist, "%s%s%s:%s",
1115: tuser ? tuser : "", tuser ? "@" : "",
1116: thost, targ);
1117: if (do_local_cmd(&alist) != 0)
1.109 markus 1118: errs = 1;
1.18 markus 1119: } else { /* local to remote */
1.216 djm 1120: if (mode == MODE_SFTP) {
1.254 ! djm 1121: /* no need to glob: already done by shell */
! 1122: if (stat(argv[i], &sb) != 0) {
! 1123: fatal("stat local \"%s\": %s", argv[i],
! 1124: strerror(errno));
! 1125: }
1.216 djm 1126: if (remin == -1) {
1127: /* Connect to remote now */
1128: conn = do_sftp_connect(thost, tuser,
1.219 djm 1129: tport, sftp_direct,
1130: &remin, &remout, &do_cmd_pid);
1.216 djm 1131: if (conn == NULL) {
1132: fatal("Unable to open sftp "
1133: "connection");
1134: }
1135: }
1136:
1137: /* The protocol */
1.228 djm 1138: source_sftp(1, argv[i], targ, conn);
1.216 djm 1139: continue;
1140: }
1141: /* SCP */
1.1 deraadt 1142: if (remin == -1) {
1.171 djm 1143: xasprintf(&bp, "%s -t %s%s", cmd,
1144: *targ == '-' ? "-- " : "", targ);
1.231 naddy 1145: if (do_cmd(ssh_program, thost, tuser, tport, 0,
1146: bp, &remin, &remout, &do_cmd_pid) < 0)
1.18 markus 1147: exit(1);
1.1 deraadt 1148: if (response() < 0)
1149: exit(1);
1.173 djm 1150: free(bp);
1.1 deraadt 1151: }
1.18 markus 1152: source(1, argv + i);
1.1 deraadt 1153: }
1154: }
1.193 millert 1155: out:
1.228 djm 1156: if (mode == MODE_SFTP)
1.216 djm 1157: free(conn);
1.193 millert 1158: free(tuser);
1159: free(thost);
1160: free(targ);
1161: free(suser);
1162: free(host);
1163: free(src);
1.1 deraadt 1164: }
1165:
1166: void
1.216 djm 1167: tolocal(int argc, char **argv, enum scp_mode_e mode, char *sftp_direct)
1.1 deraadt 1168: {
1.193 millert 1169: char *bp, *host = NULL, *src = NULL, *suser = NULL;
1.129 djm 1170: arglist alist;
1.216 djm 1171: struct sftp_conn *conn = NULL;
1.193 millert 1172: int i, r, sport = -1;
1.129 djm 1173:
1174: memset(&alist, '\0', sizeof(alist));
1175: alist.list = NULL;
1.1 deraadt 1176:
1177: for (i = 0; i < argc - 1; i++) {
1.193 millert 1178: free(suser);
1179: free(host);
1180: free(src);
1.194 millert 1181: r = parse_scp_uri(argv[i], &suser, &host, &sport, &src);
1.193 millert 1182: if (r == -1) {
1.194 millert 1183: fmprintf(stderr, "%s: invalid uri\n", argv[i]);
1.193 millert 1184: ++errs;
1185: continue;
1186: }
1187: if (r != 0)
1188: parse_user_host_path(argv[i], &suser, &host, &src);
1189: if (suser != NULL && !okname(suser)) {
1190: ++errs;
1191: continue;
1192: }
1193: if (!host) { /* Local to local. */
1.129 djm 1194: freeargs(&alist);
1195: addargs(&alist, "%s", _PATH_CP);
1196: if (iamrecursive)
1197: addargs(&alist, "-r");
1198: if (pflag)
1199: addargs(&alist, "-p");
1.165 guenther 1200: addargs(&alist, "--");
1.129 djm 1201: addargs(&alist, "%s", argv[i]);
1202: addargs(&alist, "%s", argv[argc-1]);
1203: if (do_local_cmd(&alist))
1.1 deraadt 1204: ++errs;
1205: continue;
1206: }
1.193 millert 1207: /* Remote to local. */
1.216 djm 1208: if (mode == MODE_SFTP) {
1.219 djm 1209: conn = do_sftp_connect(host, suser, sport,
1210: sftp_direct, &remin, &remout, &do_cmd_pid);
1.216 djm 1211: if (conn == NULL) {
1.236 djm 1212: error("sftp connection failed");
1.216 djm 1213: ++errs;
1214: continue;
1215: }
1216:
1217: /* The protocol */
1218: sink_sftp(1, argv[argc - 1], src, conn);
1219:
1220: free(conn);
1221: (void) close(remin);
1222: (void) close(remout);
1223: remin = remout = -1;
1224: continue;
1225: }
1226: /* SCP */
1.171 djm 1227: xasprintf(&bp, "%s -f %s%s",
1228: cmd, *src == '-' ? "-- " : "", src);
1.231 naddy 1229: if (do_cmd(ssh_program, host, suser, sport, 0, bp,
1.219 djm 1230: &remin, &remout, &do_cmd_pid) < 0) {
1.173 djm 1231: free(bp);
1.18 markus 1232: ++errs;
1233: continue;
1.1 deraadt 1234: }
1.173 djm 1235: free(bp);
1.202 djm 1236: sink(1, argv + argc - 1, src);
1.18 markus 1237: (void) close(remin);
1.1 deraadt 1238: remin = remout = -1;
1239: }
1.193 millert 1240: free(suser);
1241: free(host);
1242: free(src);
1.1 deraadt 1243: }
1244:
1.228 djm 1245: /* Prepare remote path, handling ~ by assuming cwd is the homedir */
1.226 djm 1246: static char *
1.228 djm 1247: prepare_remote_path(struct sftp_conn *conn, const char *path)
1.226 djm 1248: {
1.242 djm 1249: size_t nslash;
1250:
1.228 djm 1251: /* Handle ~ prefixed paths */
1.242 djm 1252: if (*path == '\0' || strcmp(path, "~") == 0)
1253: return xstrdup(".");
1.228 djm 1254: if (*path != '~')
1255: return xstrdup(path);
1.242 djm 1256: if (strncmp(path, "~/", 2) == 0) {
1257: if ((nslash = strspn(path + 2, "/")) == strlen(path + 2))
1258: return xstrdup(".");
1259: return xstrdup(path + 2 + nslash);
1260: }
1.227 djm 1261: if (can_expand_path(conn))
1262: return do_expand_path(conn, path);
1.228 djm 1263: /* No protocol extension */
1.237 djm 1264: error("server expand-path extension is required "
1265: "for ~user paths in SFTP mode");
1.228 djm 1266: return NULL;
1.226 djm 1267: }
1268:
1.1 deraadt 1269: void
1.228 djm 1270: source_sftp(int argc, char *src, char *targ, struct sftp_conn *conn)
1.216 djm 1271: {
1272: char *target = NULL, *filename = NULL, *abs_dst = NULL;
1.243 djm 1273: int src_is_dir, target_is_dir;
1274: Attrib a;
1275: struct stat st;
1276:
1277: memset(&a, '\0', sizeof(a));
1278: if (stat(src, &st) != 0)
1279: fatal("stat local \"%s\": %s", src, strerror(errno));
1280: src_is_dir = S_ISDIR(st.st_mode);
1.216 djm 1281: if ((filename = basename(src)) == NULL)
1.243 djm 1282: fatal("basename \"%s\": %s", src, strerror(errno));
1.216 djm 1283:
1284: /*
1285: * No need to glob here - the local shell already took care of
1286: * the expansions
1287: */
1.228 djm 1288: if ((target = prepare_remote_path(conn, targ)) == NULL)
1.226 djm 1289: cleanup_exit(255);
1.216 djm 1290: target_is_dir = remote_is_dir(conn, target);
1291: if (targetshouldbedirectory && !target_is_dir) {
1.243 djm 1292: debug("target directory \"%s\" does not exist", target);
1293: a.flags = SSH2_FILEXFER_ATTR_PERMISSIONS;
1294: a.perm = st.st_mode | 0700; /* ensure writable */
1295: if (do_mkdir(conn, target, &a, 1) != 0)
1296: cleanup_exit(255); /* error already logged */
1297: target_is_dir = 1;
1.216 djm 1298: }
1299: if (target_is_dir)
1300: abs_dst = path_append(target, filename);
1301: else {
1302: abs_dst = target;
1303: target = NULL;
1304: }
1305: debug3_f("copying local %s to remote %s", src, abs_dst);
1306:
1.243 djm 1307: if (src_is_dir && iamrecursive) {
1.220 djm 1308: if (upload_dir(conn, src, abs_dst, pflag,
1.248 djm 1309: SFTP_PROGRESS_ONLY, 0, 0, 1, 1) != 0) {
1.244 djm 1310: error("failed to upload directory %s to %s", src, targ);
1.234 djm 1311: errs = 1;
1.216 djm 1312: }
1.248 djm 1313: } else if (do_upload(conn, src, abs_dst, pflag, 0, 0, 1) != 0) {
1.244 djm 1314: error("failed to upload file %s to %s", src, targ);
1.234 djm 1315: errs = 1;
1316: }
1.216 djm 1317:
1318: free(abs_dst);
1319: free(target);
1320: }
1321:
1322: void
1.104 djm 1323: source(int argc, char **argv)
1.1 deraadt 1324: {
1325: struct stat stb;
1326: static BUF buffer;
1327: BUF *bp;
1.163 dtucker 1328: off_t i, statbytes;
1.180 djm 1329: size_t amt, nr;
1.125 dtucker 1330: int fd = -1, haderr, indx;
1.206 dtucker 1331: char *last, *name, buf[PATH_MAX + 128], encname[PATH_MAX];
1.65 deraadt 1332: int len;
1.1 deraadt 1333:
1334: for (indx = 0; indx < argc; ++indx) {
1.18 markus 1335: name = argv[indx];
1.11 aaron 1336: statbytes = 0;
1.65 deraadt 1337: len = strlen(name);
1338: while (len > 1 && name[len-1] == '/')
1339: name[--len] = '\0';
1.241 deraadt 1340: if ((fd = open(name, O_RDONLY|O_NONBLOCK)) == -1)
1.158 dtucker 1341: goto syserr;
1.85 markus 1342: if (strchr(name, '\n') != NULL) {
1.158 dtucker 1343: strnvis(encname, name, sizeof(encname), VIS_NL);
1344: name = encname;
1.85 markus 1345: }
1.205 deraadt 1346: if (fstat(fd, &stb) == -1) {
1.1 deraadt 1347: syserr: run_err("%s: %s", name, strerror(errno));
1348: goto next;
1349: }
1.163 dtucker 1350: if (stb.st_size < 0) {
1351: run_err("%s: %s", name, "Negative file size");
1352: goto next;
1353: }
1.157 djm 1354: unset_nonblock(fd);
1.1 deraadt 1355: switch (stb.st_mode & S_IFMT) {
1356: case S_IFREG:
1357: break;
1358: case S_IFDIR:
1359: if (iamrecursive) {
1360: rsource(name, &stb);
1361: goto next;
1362: }
1363: /* FALLTHROUGH */
1364: default:
1365: run_err("%s: not a regular file", name);
1366: goto next;
1367: }
1368: if ((last = strrchr(name, '/')) == NULL)
1369: last = name;
1370: else
1371: ++last;
1.11 aaron 1372: curfile = last;
1.1 deraadt 1373: if (pflag) {
1.176 guenther 1374: if (do_times(remout, verbose_mode, &stb) < 0)
1.1 deraadt 1375: goto next;
1376: }
1377: #define FILEMODEMASK (S_ISUID|S_ISGID|S_IRWXU|S_IRWXG|S_IRWXO)
1.61 markus 1378: snprintf(buf, sizeof buf, "C%04o %lld %s\n",
1.47 markus 1379: (u_int) (stb.st_mode & FILEMODEMASK),
1.62 markus 1380: (long long)stb.st_size, last);
1.186 schwarze 1381: if (verbose_mode)
1382: fmprintf(stderr, "Sending file modes: %s", buf);
1.107 deraadt 1383: (void) atomicio(vwrite, remout, buf, strlen(buf));
1.1 deraadt 1384: if (response() < 0)
1385: goto next;
1.161 djm 1386: if ((bp = allocbuf(&buffer, fd, COPY_BUFLEN)) == NULL) {
1.127 deraadt 1387: next: if (fd != -1) {
1388: (void) close(fd);
1389: fd = -1;
1390: }
1.1 deraadt 1391: continue;
1392: }
1.97 fgsch 1393: if (showprogress)
1394: start_progress_meter(curfile, stb.st_size, &statbytes);
1.161 djm 1395: set_nonblock(remout);
1.1 deraadt 1396: for (haderr = i = 0; i < stb.st_size; i += bp->cnt) {
1397: amt = bp->cnt;
1.163 dtucker 1398: if (i + (off_t)amt > stb.st_size)
1.1 deraadt 1399: amt = stb.st_size - i;
1400: if (!haderr) {
1.180 djm 1401: if ((nr = atomicio(read, fd,
1402: bp->buf, amt)) != amt) {
1.122 avsm 1403: haderr = errno;
1.180 djm 1404: memset(bp->buf + nr, 0, amt - nr);
1405: }
1.1 deraadt 1406: }
1.161 djm 1407: /* Keep writing after error to retain sync */
1408: if (haderr) {
1409: (void)atomicio(vwrite, remout, bp->buf, amt);
1.180 djm 1410: memset(bp->buf, 0, amt);
1.161 djm 1411: continue;
1.1 deraadt 1412: }
1.167 djm 1413: if (atomicio6(vwrite, remout, bp->buf, amt, scpio,
1.161 djm 1414: &statbytes) != amt)
1415: haderr = errno;
1.1 deraadt 1416: }
1.161 djm 1417: unset_nonblock(remout);
1.4 aaron 1418:
1.127 deraadt 1419: if (fd != -1) {
1.205 deraadt 1420: if (close(fd) == -1 && !haderr)
1.127 deraadt 1421: haderr = errno;
1422: fd = -1;
1423: }
1.1 deraadt 1424: if (!haderr)
1.107 deraadt 1425: (void) atomicio(vwrite, remout, "", 1);
1.1 deraadt 1426: else
1427: run_err("%s: %s", name, strerror(haderr));
1.18 markus 1428: (void) response();
1.185 dtucker 1429: if (showprogress)
1430: stop_progress_meter();
1.1 deraadt 1431: }
1432: }
1433:
1434: void
1.104 djm 1435: rsource(char *name, struct stat *statp)
1.1 deraadt 1436: {
1437: DIR *dirp;
1438: struct dirent *dp;
1.181 deraadt 1439: char *last, *vect[1], path[PATH_MAX];
1.1 deraadt 1440:
1441: if (!(dirp = opendir(name))) {
1442: run_err("%s: %s", name, strerror(errno));
1443: return;
1444: }
1445: last = strrchr(name, '/');
1.183 mmcc 1446: if (last == NULL)
1.1 deraadt 1447: last = name;
1448: else
1449: last++;
1450: if (pflag) {
1.176 guenther 1451: if (do_times(remout, verbose_mode, statp) < 0) {
1.1 deraadt 1452: closedir(dirp);
1453: return;
1454: }
1455: }
1.55 deraadt 1456: (void) snprintf(path, sizeof path, "D%04o %d %.1024s\n",
1.47 markus 1457: (u_int) (statp->st_mode & FILEMODEMASK), 0, last);
1.18 markus 1458: if (verbose_mode)
1.186 schwarze 1459: fmprintf(stderr, "Entering directory: %s", path);
1.107 deraadt 1460: (void) atomicio(vwrite, remout, path, strlen(path));
1.1 deraadt 1461: if (response() < 0) {
1462: closedir(dirp);
1463: return;
1464: }
1.63 stevesk 1465: while ((dp = readdir(dirp)) != NULL) {
1.1 deraadt 1466: if (dp->d_ino == 0)
1467: continue;
1468: if (!strcmp(dp->d_name, ".") || !strcmp(dp->d_name, ".."))
1469: continue;
1470: if (strlen(name) + 1 + strlen(dp->d_name) >= sizeof(path) - 1) {
1471: run_err("%s/%s: name too long", name, dp->d_name);
1472: continue;
1473: }
1.55 deraadt 1474: (void) snprintf(path, sizeof path, "%s/%s", name, dp->d_name);
1.1 deraadt 1475: vect[0] = path;
1476: source(1, vect);
1477: }
1.18 markus 1478: (void) closedir(dirp);
1.107 deraadt 1479: (void) atomicio(vwrite, remout, "E\n", 2);
1.18 markus 1480: (void) response();
1.1 deraadt 1481: }
1482:
1.216 djm 1483: void
1484: sink_sftp(int argc, char *dst, const char *src, struct sftp_conn *conn)
1485: {
1486: char *abs_src = NULL;
1487: char *abs_dst = NULL;
1488: glob_t g;
1.228 djm 1489: char *filename, *tmp = NULL;
1.243 djm 1490: int i, r, err = 0, dst_is_dir;
1491: struct stat st;
1.216 djm 1492:
1.226 djm 1493: memset(&g, 0, sizeof(g));
1.243 djm 1494:
1.216 djm 1495: /*
1496: * Here, we need remote glob as SFTP can not depend on remote shell
1497: * expansions
1498: */
1.228 djm 1499: if ((abs_src = prepare_remote_path(conn, src)) == NULL) {
1.226 djm 1500: err = -1;
1501: goto out;
1502: }
1.216 djm 1503:
1504: debug3_f("copying remote %s to local %s", abs_src, dst);
1.249 djm 1505: if ((r = remote_glob(conn, abs_src, GLOB_NOCHECK|GLOB_MARK,
1506: NULL, &g)) != 0) {
1.216 djm 1507: if (r == GLOB_NOSPACE)
1.244 djm 1508: error("%s: too many glob matches", src);
1.216 djm 1509: else
1.244 djm 1510: error("%s: %s", src, strerror(ENOENT));
1.216 djm 1511: err = -1;
1512: goto out;
1513: }
1514:
1.249 djm 1515: /* Did we actually get any matches back from the glob? */
1516: if (g.gl_matchc == 0 && g.gl_pathc == 1 && g.gl_pathv[0] != 0) {
1517: /*
1518: * If nothing matched but a path returned, then it's probably
1519: * a GLOB_NOCHECK result. Check whether the unglobbed path
1520: * exists so we can give a nice error message early.
1521: */
1522: if (do_stat(conn, g.gl_pathv[0], 1) == NULL) {
1523: error("%s: %s", src, strerror(ENOENT));
1524: err = -1;
1525: goto out;
1526: }
1527: }
1528:
1.243 djm 1529: if ((r = stat(dst, &st)) != 0)
1530: debug2_f("stat local \"%s\": %s", dst, strerror(errno));
1531: dst_is_dir = r == 0 && S_ISDIR(st.st_mode);
1532:
1533: if (g.gl_matchc > 1 && !dst_is_dir) {
1534: if (r == 0) {
1535: error("Multiple files match pattern, but destination "
1536: "\"%s\" is not a directory", dst);
1537: err = -1;
1538: goto out;
1539: }
1540: debug2_f("creating destination \"%s\"", dst);
1541: if (mkdir(dst, 0777) != 0) {
1542: error("local mkdir \"%s\": %s", dst, strerror(errno));
1543: err = -1;
1544: goto out;
1545: }
1546: dst_is_dir = 1;
1.216 djm 1547: }
1548:
1549: for (i = 0; g.gl_pathv[i] && !interrupted; i++) {
1550: tmp = xstrdup(g.gl_pathv[i]);
1551: if ((filename = basename(tmp)) == NULL) {
1552: error("basename %s: %s", tmp, strerror(errno));
1553: err = -1;
1554: goto out;
1555: }
1556:
1.243 djm 1557: if (dst_is_dir)
1.216 djm 1558: abs_dst = path_append(dst, filename);
1559: else
1560: abs_dst = xstrdup(dst);
1561:
1562: debug("Fetching %s to %s\n", g.gl_pathv[i], abs_dst);
1563: if (globpath_is_dir(g.gl_pathv[i]) && iamrecursive) {
1564: if (download_dir(conn, g.gl_pathv[i], abs_dst, NULL,
1.248 djm 1565: pflag, SFTP_PROGRESS_ONLY, 0, 0, 1, 1) == -1)
1.216 djm 1566: err = -1;
1567: } else {
1568: if (do_download(conn, g.gl_pathv[i], abs_dst, NULL,
1.248 djm 1569: pflag, 0, 0, 1) == -1)
1.216 djm 1570: err = -1;
1571: }
1572: free(abs_dst);
1573: abs_dst = NULL;
1.217 dtucker 1574: free(tmp);
1575: tmp = NULL;
1.216 djm 1576: }
1577:
1578: out:
1579: free(abs_src);
1.217 dtucker 1580: free(tmp);
1.216 djm 1581: globfree(&g);
1.235 djm 1582: if (err == -1)
1.234 djm 1583: errs = 1;
1.216 djm 1584: }
1585:
1586:
1.189 millert 1587: #define TYPE_OVERFLOW(type, val) \
1588: ((sizeof(type) == 4 && (val) > INT32_MAX) || \
1589: (sizeof(type) == 8 && (val) > INT64_MAX) || \
1590: (sizeof(type) != 4 && sizeof(type) != 8))
1591:
1.1 deraadt 1592: void
1.202 djm 1593: sink(int argc, char **argv, const char *src)
1.1 deraadt 1594: {
1595: static BUF buffer;
1596: struct stat stb;
1597: BUF *bp;
1.122 avsm 1598: off_t i;
1.124 djm 1599: size_t j, count;
1.140 deraadt 1600: int amt, exists, first, ofd;
1601: mode_t mode, omode, mask;
1.97 fgsch 1602: off_t size, statbytes;
1.176 guenther 1603: unsigned long long ull;
1.209 djm 1604: int setimes, targisdir, wrerr;
1.186 schwarze 1605: char ch, *cp, *np, *targ, *why, *vect[1], buf[2048], visbuf[2048];
1.204 djm 1606: char **patterns = NULL;
1607: size_t n, npatterns = 0;
1.40 markus 1608: struct timeval tv[2];
1.1 deraadt 1609:
1.66 stevesk 1610: #define atime tv[0]
1611: #define mtime tv[1]
1.118 deraadt 1612: #define SCREWUP(str) { why = str; goto screwup; }
1.1 deraadt 1613:
1.189 millert 1614: if (TYPE_OVERFLOW(time_t, 0) || TYPE_OVERFLOW(off_t, 0))
1615: SCREWUP("Unexpected off_t/time_t size");
1616:
1.1 deraadt 1617: setimes = targisdir = 0;
1618: mask = umask(0);
1619: if (!pflag)
1.18 markus 1620: (void) umask(mask);
1.1 deraadt 1621: if (argc != 1) {
1622: run_err("ambiguous target");
1623: exit(1);
1624: }
1625: targ = *argv;
1626: if (targetshouldbedirectory)
1627: verifydir(targ);
1.18 markus 1628:
1.107 deraadt 1629: (void) atomicio(vwrite, remout, "", 1);
1.1 deraadt 1630: if (stat(targ, &stb) == 0 && S_ISDIR(stb.st_mode))
1631: targisdir = 1;
1.202 djm 1632: if (src != NULL && !iamrecursive && !Tflag) {
1633: /*
1634: * Prepare to try to restrict incoming filenames to match
1635: * the requested destination file glob.
1636: */
1.204 djm 1637: if (brace_expand(src, &patterns, &npatterns) != 0)
1.213 djm 1638: fatal_f("could not expand pattern");
1.202 djm 1639: }
1.1 deraadt 1640: for (first = 1;; first = 0) {
1641: cp = buf;
1.122 avsm 1642: if (atomicio(read, remin, cp, 1) != 1)
1.204 djm 1643: goto done;
1.1 deraadt 1644: if (*cp++ == '\n')
1645: SCREWUP("unexpected <newline>");
1646: do {
1.30 deraadt 1647: if (atomicio(read, remin, &ch, sizeof(ch)) != sizeof(ch))
1.1 deraadt 1648: SCREWUP("lost connection");
1649: *cp++ = ch;
1650: } while (cp < &buf[sizeof(buf) - 1] && ch != '\n');
1651: *cp = 0;
1.114 markus 1652: if (verbose_mode)
1.186 schwarze 1653: fmprintf(stderr, "Sink: %s", buf);
1.1 deraadt 1654:
1655: if (buf[0] == '\01' || buf[0] == '\02') {
1.186 schwarze 1656: if (iamremote == 0) {
1657: (void) snmprintf(visbuf, sizeof(visbuf),
1658: NULL, "%s", buf + 1);
1.107 deraadt 1659: (void) atomicio(vwrite, STDERR_FILENO,
1.186 schwarze 1660: visbuf, strlen(visbuf));
1661: }
1.1 deraadt 1662: if (buf[0] == '\02')
1663: exit(1);
1664: ++errs;
1665: continue;
1666: }
1667: if (buf[0] == 'E') {
1.107 deraadt 1668: (void) atomicio(vwrite, remout, "", 1);
1.204 djm 1669: goto done;
1.1 deraadt 1670: }
1671: if (ch == '\n')
1672: *--cp = 0;
1673:
1674: cp = buf;
1675: if (*cp == 'T') {
1676: setimes++;
1677: cp++;
1.176 guenther 1678: if (!isdigit((unsigned char)*cp))
1679: SCREWUP("mtime.sec not present");
1680: ull = strtoull(cp, &cp, 10);
1.66 stevesk 1681: if (!cp || *cp++ != ' ')
1.1 deraadt 1682: SCREWUP("mtime.sec not delimited");
1.189 millert 1683: if (TYPE_OVERFLOW(time_t, ull))
1.176 guenther 1684: setimes = 0; /* out of range */
1685: mtime.tv_sec = ull;
1.66 stevesk 1686: mtime.tv_usec = strtol(cp, &cp, 10);
1.176 guenther 1687: if (!cp || *cp++ != ' ' || mtime.tv_usec < 0 ||
1688: mtime.tv_usec > 999999)
1.1 deraadt 1689: SCREWUP("mtime.usec not delimited");
1.176 guenther 1690: if (!isdigit((unsigned char)*cp))
1691: SCREWUP("atime.sec not present");
1692: ull = strtoull(cp, &cp, 10);
1.66 stevesk 1693: if (!cp || *cp++ != ' ')
1.1 deraadt 1694: SCREWUP("atime.sec not delimited");
1.189 millert 1695: if (TYPE_OVERFLOW(time_t, ull))
1.176 guenther 1696: setimes = 0; /* out of range */
1697: atime.tv_sec = ull;
1.66 stevesk 1698: atime.tv_usec = strtol(cp, &cp, 10);
1.176 guenther 1699: if (!cp || *cp++ != '\0' || atime.tv_usec < 0 ||
1700: atime.tv_usec > 999999)
1.1 deraadt 1701: SCREWUP("atime.usec not delimited");
1.107 deraadt 1702: (void) atomicio(vwrite, remout, "", 1);
1.1 deraadt 1703: continue;
1704: }
1705: if (*cp != 'C' && *cp != 'D') {
1706: /*
1707: * Check for the case "rcp remote:foo\* local:bar".
1708: * In this case, the line "No match." can be returned
1709: * by the shell before the rcp command on the remote is
1710: * executed so the ^Aerror_message convention isn't
1711: * followed.
1712: */
1713: if (first) {
1714: run_err("%s", cp);
1715: exit(1);
1716: }
1717: SCREWUP("expected control record");
1718: }
1719: mode = 0;
1720: for (++cp; cp < buf + 5; cp++) {
1721: if (*cp < '0' || *cp > '7')
1722: SCREWUP("bad mode");
1723: mode = (mode << 3) | (*cp - '0');
1724: }
1.197 dtucker 1725: if (!pflag)
1726: mode &= ~mask;
1.1 deraadt 1727: if (*cp++ != ' ')
1728: SCREWUP("mode not delimited");
1729:
1.188 millert 1730: if (!isdigit((unsigned char)*cp))
1731: SCREWUP("size not present");
1732: ull = strtoull(cp, &cp, 10);
1733: if (!cp || *cp++ != ' ')
1.1 deraadt 1734: SCREWUP("size not delimited");
1.189 millert 1735: if (TYPE_OVERFLOW(off_t, ull))
1.188 millert 1736: SCREWUP("size out of range");
1737: size = (off_t)ull;
1738:
1.198 djm 1739: if (*cp == '\0' || strchr(cp, '/') != NULL ||
1740: strcmp(cp, ".") == 0 || strcmp(cp, "..") == 0) {
1.114 markus 1741: run_err("error: unexpected filename: %s", cp);
1742: exit(1);
1743: }
1.204 djm 1744: if (npatterns > 0) {
1745: for (n = 0; n < npatterns; n++) {
1.249 djm 1746: if (strcmp(patterns[n], cp) == 0 ||
1747: fnmatch(patterns[n], cp, 0) == 0)
1.204 djm 1748: break;
1749: }
1750: if (n >= npatterns)
1751: SCREWUP("filename does not match request");
1752: }
1.1 deraadt 1753: if (targisdir) {
1754: static char *namebuf;
1.124 djm 1755: static size_t cursize;
1.1 deraadt 1756: size_t need;
1757:
1758: need = strlen(targ) + strlen(cp) + 250;
1.55 deraadt 1759: if (need > cursize) {
1.173 djm 1760: free(namebuf);
1.18 markus 1761: namebuf = xmalloc(need);
1.55 deraadt 1762: cursize = need;
1763: }
1764: (void) snprintf(namebuf, need, "%s%s%s", targ,
1.88 mouring 1765: strcmp(targ, "/") ? "/" : "", cp);
1.1 deraadt 1766: np = namebuf;
1767: } else
1768: np = targ;
1.12 aaron 1769: curfile = cp;
1.1 deraadt 1770: exists = stat(np, &stb) == 0;
1771: if (buf[0] == 'D') {
1772: int mod_flag = pflag;
1.114 markus 1773: if (!iamrecursive)
1774: SCREWUP("received directory without -r");
1.1 deraadt 1775: if (exists) {
1776: if (!S_ISDIR(stb.st_mode)) {
1777: errno = ENOTDIR;
1778: goto bad;
1779: }
1780: if (pflag)
1.18 markus 1781: (void) chmod(np, mode);
1.1 deraadt 1782: } else {
1.214 djm 1783: /* Handle copying from a read-only directory */
1.1 deraadt 1784: mod_flag = 1;
1.205 deraadt 1785: if (mkdir(np, mode | S_IRWXU) == -1)
1.1 deraadt 1786: goto bad;
1787: }
1.58 danh 1788: vect[0] = xstrdup(np);
1.202 djm 1789: sink(1, vect, src);
1.1 deraadt 1790: if (setimes) {
1791: setimes = 0;
1.210 djm 1792: (void) utimes(vect[0], tv);
1.1 deraadt 1793: }
1794: if (mod_flag)
1.59 deraadt 1795: (void) chmod(vect[0], mode);
1.173 djm 1796: free(vect[0]);
1.1 deraadt 1797: continue;
1798: }
1799: omode = mode;
1.174 dtucker 1800: mode |= S_IWUSR;
1.205 deraadt 1801: if ((ofd = open(np, O_WRONLY|O_CREAT, mode)) == -1) {
1.1 deraadt 1802: bad: run_err("%s: %s", np, strerror(errno));
1803: continue;
1804: }
1.107 deraadt 1805: (void) atomicio(vwrite, remout, "", 1);
1.161 djm 1806: if ((bp = allocbuf(&buffer, ofd, COPY_BUFLEN)) == NULL) {
1.18 markus 1807: (void) close(ofd);
1.1 deraadt 1808: continue;
1809: }
1810: cp = bp->buf;
1.209 djm 1811: wrerr = 0;
1.7 deraadt 1812:
1.209 djm 1813: /*
1814: * NB. do not use run_err() unless immediately followed by
1815: * exit() below as it may send a spurious reply that might
1816: * desyncronise us from the peer. Use note_err() instead.
1817: */
1.12 aaron 1818: statbytes = 0;
1.97 fgsch 1819: if (showprogress)
1820: start_progress_meter(curfile, size, &statbytes);
1.161 djm 1821: set_nonblock(remin);
1822: for (count = i = 0; i < size; i += bp->cnt) {
1823: amt = bp->cnt;
1.1 deraadt 1824: if (i + amt > size)
1825: amt = size - i;
1826: count += amt;
1827: do {
1.167 djm 1828: j = atomicio6(read, remin, cp, amt,
1829: scpio, &statbytes);
1.122 avsm 1830: if (j == 0) {
1.161 djm 1831: run_err("%s", j != EPIPE ?
1832: strerror(errno) :
1.63 stevesk 1833: "dropped connection");
1.1 deraadt 1834: exit(1);
1835: }
1836: amt -= j;
1837: cp += j;
1838: } while (amt > 0);
1.112 djm 1839:
1.1 deraadt 1840: if (count == bp->cnt) {
1841: /* Keep reading so we stay sync'd up. */
1.209 djm 1842: if (!wrerr) {
1.122 avsm 1843: if (atomicio(vwrite, ofd, bp->buf,
1844: count) != count) {
1.209 djm 1845: note_err("%s: %s", np,
1846: strerror(errno));
1847: wrerr = 1;
1.1 deraadt 1848: }
1849: }
1850: count = 0;
1851: cp = bp->buf;
1852: }
1853: }
1.161 djm 1854: unset_nonblock(remin);
1.209 djm 1855: if (count != 0 && !wrerr &&
1.122 avsm 1856: atomicio(vwrite, ofd, bp->buf, count) != count) {
1.209 djm 1857: note_err("%s: %s", np, strerror(errno));
1858: wrerr = 1;
1.1 deraadt 1859: }
1.209 djm 1860: if (!wrerr && (!exists || S_ISREG(stb.st_mode)) &&
1861: ftruncate(ofd, size) != 0)
1862: note_err("%s: truncate: %s", np, strerror(errno));
1.1 deraadt 1863: if (pflag) {
1864: if (exists || omode != mode)
1.116 dtucker 1865: if (fchmod(ofd, omode)) {
1.209 djm 1866: note_err("%s: set mode: %s",
1.63 stevesk 1867: np, strerror(errno));
1.116 dtucker 1868: }
1.1 deraadt 1869: } else {
1870: if (!exists && omode != mode)
1.116 dtucker 1871: if (fchmod(ofd, omode & ~mask)) {
1.209 djm 1872: note_err("%s: set mode: %s",
1.63 stevesk 1873: np, strerror(errno));
1.116 dtucker 1874: }
1.1 deraadt 1875: }
1.209 djm 1876: if (close(ofd) == -1)
1.211 millert 1877: note_err("%s: close: %s", np, strerror(errno));
1.18 markus 1878: (void) response();
1.185 dtucker 1879: if (showprogress)
1880: stop_progress_meter();
1.209 djm 1881: if (setimes && !wrerr) {
1.1 deraadt 1882: setimes = 0;
1.205 deraadt 1883: if (utimes(np, tv) == -1) {
1.209 djm 1884: note_err("%s: set times: %s",
1.63 stevesk 1885: np, strerror(errno));
1.1 deraadt 1886: }
1887: }
1.209 djm 1888: /* If no error was noted then signal success for this file */
1889: if (note_err(NULL) == 0)
1.107 deraadt 1890: (void) atomicio(vwrite, remout, "", 1);
1.1 deraadt 1891: }
1.204 djm 1892: done:
1893: for (n = 0; n < npatterns; n++)
1894: free(patterns[n]);
1895: free(patterns);
1896: return;
1.1 deraadt 1897: screwup:
1.204 djm 1898: for (n = 0; n < npatterns; n++)
1899: free(patterns[n]);
1900: free(patterns);
1.1 deraadt 1901: run_err("protocol error: %s", why);
1902: exit(1);
1.219 djm 1903: }
1904:
1905: void
1906: throughlocal_sftp(struct sftp_conn *from, struct sftp_conn *to,
1.228 djm 1907: char *src, char *targ)
1.219 djm 1908: {
1909: char *target = NULL, *filename = NULL, *abs_dst = NULL;
1.228 djm 1910: char *abs_src = NULL, *tmp = NULL;
1.219 djm 1911: glob_t g;
1912: int i, r, targetisdir, err = 0;
1913:
1914: if ((filename = basename(src)) == NULL)
1915: fatal("basename %s: %s", src, strerror(errno));
1916:
1.228 djm 1917: if ((abs_src = prepare_remote_path(from, src)) == NULL ||
1918: (target = prepare_remote_path(to, targ)) == NULL)
1.226 djm 1919: cleanup_exit(255);
1.219 djm 1920: memset(&g, 0, sizeof(g));
1921:
1922: targetisdir = remote_is_dir(to, target);
1923: if (!targetisdir && targetshouldbedirectory) {
1.244 djm 1924: error("%s: destination is not a directory", targ);
1.219 djm 1925: err = -1;
1926: goto out;
1927: }
1928:
1929: debug3_f("copying remote %s to remote %s", abs_src, target);
1.249 djm 1930: if ((r = remote_glob(from, abs_src, GLOB_NOCHECK|GLOB_MARK,
1931: NULL, &g)) != 0) {
1.219 djm 1932: if (r == GLOB_NOSPACE)
1.244 djm 1933: error("%s: too many glob matches", src);
1.219 djm 1934: else
1.244 djm 1935: error("%s: %s", src, strerror(ENOENT));
1.219 djm 1936: err = -1;
1937: goto out;
1.249 djm 1938: }
1939:
1940: /* Did we actually get any matches back from the glob? */
1941: if (g.gl_matchc == 0 && g.gl_pathc == 1 && g.gl_pathv[0] != 0) {
1942: /*
1943: * If nothing matched but a path returned, then it's probably
1944: * a GLOB_NOCHECK result. Check whether the unglobbed path
1945: * exists so we can give a nice error message early.
1946: */
1947: if (do_stat(from, g.gl_pathv[0], 1) == NULL) {
1948: error("%s: %s", src, strerror(ENOENT));
1949: err = -1;
1950: goto out;
1951: }
1.219 djm 1952: }
1953:
1954: for (i = 0; g.gl_pathv[i] && !interrupted; i++) {
1955: tmp = xstrdup(g.gl_pathv[i]);
1956: if ((filename = basename(tmp)) == NULL) {
1957: error("basename %s: %s", tmp, strerror(errno));
1958: err = -1;
1959: goto out;
1960: }
1961:
1962: if (targetisdir)
1963: abs_dst = path_append(target, filename);
1964: else
1965: abs_dst = xstrdup(target);
1966:
1967: debug("Fetching %s to %s\n", g.gl_pathv[i], abs_dst);
1968: if (globpath_is_dir(g.gl_pathv[i]) && iamrecursive) {
1969: if (crossload_dir(from, to, g.gl_pathv[i], abs_dst,
1.221 djm 1970: NULL, pflag, SFTP_PROGRESS_ONLY, 1) == -1)
1.219 djm 1971: err = -1;
1972: } else {
1973: if (do_crossload(from, to, g.gl_pathv[i], abs_dst, NULL,
1974: pflag) == -1)
1975: err = -1;
1976: }
1977: free(abs_dst);
1978: abs_dst = NULL;
1979: free(tmp);
1980: tmp = NULL;
1981: }
1982:
1983: out:
1984: free(abs_src);
1985: free(abs_dst);
1986: free(target);
1987: free(tmp);
1988: globfree(&g);
1989: if (err == -1)
1.235 djm 1990: errs = 1;
1.1 deraadt 1991: }
1992:
1993: int
1.86 itojun 1994: response(void)
1.1 deraadt 1995: {
1.186 schwarze 1996: char ch, *cp, resp, rbuf[2048], visbuf[2048];
1.1 deraadt 1997:
1.30 deraadt 1998: if (atomicio(read, remin, &resp, sizeof(resp)) != sizeof(resp))
1.1 deraadt 1999: lostconn(0);
2000:
2001: cp = rbuf;
1.18 markus 2002: switch (resp) {
2003: case 0: /* ok */
1.1 deraadt 2004: return (0);
2005: default:
2006: *cp++ = resp;
2007: /* FALLTHROUGH */
1.18 markus 2008: case 1: /* error, followed by error msg */
2009: case 2: /* fatal error, "" */
1.1 deraadt 2010: do {
1.30 deraadt 2011: if (atomicio(read, remin, &ch, sizeof(ch)) != sizeof(ch))
1.1 deraadt 2012: lostconn(0);
2013: *cp++ = ch;
2014: } while (cp < &rbuf[sizeof(rbuf) - 1] && ch != '\n');
2015:
1.186 schwarze 2016: if (!iamremote) {
2017: cp[-1] = '\0';
2018: (void) snmprintf(visbuf, sizeof(visbuf),
2019: NULL, "%s\n", rbuf);
2020: (void) atomicio(vwrite, STDERR_FILENO,
2021: visbuf, strlen(visbuf));
2022: }
1.1 deraadt 2023: ++errs;
2024: if (resp == 1)
2025: return (-1);
2026: exit(1);
2027: }
2028: /* NOTREACHED */
2029: }
2030:
2031: void
1.86 itojun 2032: usage(void)
1.1 deraadt 2033: {
1.83 stevesk 2034: (void) fprintf(stderr,
1.239 djm 2035: "usage: scp [-346ABCOpqRrsTv] [-c cipher] [-D sftp_server_path] [-F ssh_config]\n"
1.251 jmc 2036: " [-i identity_file] [-J destination] [-l limit] [-o ssh_option]\n"
2037: " [-P port] [-S program] [-X sftp_option] source ... target\n");
1.1 deraadt 2038: exit(1);
2039: }
2040:
2041: void
1.18 markus 2042: run_err(const char *fmt,...)
1.1 deraadt 2043: {
2044: static FILE *fp;
2045: va_list ap;
2046:
2047: ++errs;
1.136 biorn 2048: if (fp != NULL || (remout != -1 && (fp = fdopen(remout, "w")))) {
2049: (void) fprintf(fp, "%c", 0x01);
2050: (void) fprintf(fp, "scp: ");
2051: va_start(ap, fmt);
2052: (void) vfprintf(fp, fmt, ap);
2053: va_end(ap);
2054: (void) fprintf(fp, "\n");
2055: (void) fflush(fp);
2056: }
1.18 markus 2057:
2058: if (!iamremote) {
1.73 markus 2059: va_start(ap, fmt);
1.186 schwarze 2060: vfmprintf(stderr, fmt, ap);
1.73 markus 2061: va_end(ap);
1.18 markus 2062: fprintf(stderr, "\n");
2063: }
1.209 djm 2064: }
2065:
2066: /*
2067: * Notes a sink error for sending at the end of a file transfer. Returns 0 if
2068: * no error has been noted or -1 otherwise. Use note_err(NULL) to flush
2069: * any active error at the end of the transfer.
2070: */
2071: int
2072: note_err(const char *fmt, ...)
2073: {
2074: static char *emsg;
2075: va_list ap;
2076:
2077: /* Replay any previously-noted error */
2078: if (fmt == NULL) {
2079: if (emsg == NULL)
2080: return 0;
2081: run_err("%s", emsg);
2082: free(emsg);
2083: emsg = NULL;
2084: return -1;
2085: }
2086:
2087: errs++;
2088: /* Prefer first-noted error */
2089: if (emsg != NULL)
2090: return -1;
2091:
2092: va_start(ap, fmt);
2093: vasnmprintf(&emsg, INT_MAX, NULL, fmt, ap);
2094: va_end(ap);
2095: return -1;
1.1 deraadt 2096: }
2097:
2098: void
1.104 djm 2099: verifydir(char *cp)
1.1 deraadt 2100: {
2101: struct stat stb;
2102:
2103: if (!stat(cp, &stb)) {
2104: if (S_ISDIR(stb.st_mode))
2105: return;
2106: errno = ENOTDIR;
2107: }
2108: run_err("%s: %s", cp, strerror(errno));
1.123 avsm 2109: killchild(0);
1.1 deraadt 2110: }
2111:
2112: int
1.104 djm 2113: okname(char *cp0)
1.1 deraadt 2114: {
2115: int c;
2116: char *cp;
2117:
2118: cp = cp0;
2119: do {
1.75 deraadt 2120: c = (int)*cp;
1.1 deraadt 2121: if (c & 0200)
2122: goto bad;
1.179 deraadt 2123: if (!isalpha(c) && !isdigit((unsigned char)c)) {
1.101 markus 2124: switch (c) {
2125: case '\'':
2126: case '"':
2127: case '`':
2128: case ' ':
2129: case '#':
2130: goto bad;
2131: default:
2132: break;
2133: }
2134: }
1.1 deraadt 2135: } while (*++cp);
2136: return (1);
2137:
1.186 schwarze 2138: bad: fmprintf(stderr, "%s: invalid user name\n", cp0);
1.1 deraadt 2139: return (0);
2140: }
2141:
2142: BUF *
1.104 djm 2143: allocbuf(BUF *bp, int fd, int blksize)
1.1 deraadt 2144: {
2145: size_t size;
2146: struct stat stb;
2147:
1.205 deraadt 2148: if (fstat(fd, &stb) == -1) {
1.1 deraadt 2149: run_err("fstat: %s", strerror(errno));
2150: return (0);
2151: }
1.187 deraadt 2152: size = ROUNDUP(stb.st_blksize, blksize);
1.95 markus 2153: if (size == 0)
1.18 markus 2154: size = blksize;
1.1 deraadt 2155: if (bp->cnt >= size)
2156: return (bp);
1.192 deraadt 2157: bp->buf = xrecallocarray(bp->buf, bp->cnt, size, 1);
1.1 deraadt 2158: bp->cnt = size;
2159: return (bp);
2160: }
2161:
2162: void
1.104 djm 2163: lostconn(int signo)
1.1 deraadt 2164: {
2165: if (!iamremote)
1.172 dtucker 2166: (void)write(STDERR_FILENO, "lost connection\n", 16);
1.74 markus 2167: if (signo)
2168: _exit(1);
2169: else
2170: exit(1);
1.225 djm 2171: }
2172:
2173: void
2174: cleanup_exit(int i)
2175: {
2176: if (remin > 0)
2177: close(remin);
2178: if (remout > 0)
2179: close(remout);
2180: if (remin2 > 0)
2181: close(remin2);
2182: if (remout2 > 0)
2183: close(remout2);
2184: if (do_cmd_pid > 0)
2185: waitpid(do_cmd_pid, NULL, 0);
2186: if (do_cmd_pid2 > 0)
2187: waitpid(do_cmd_pid2, NULL, 0);
2188: exit(i);
1.4 aaron 2189: }
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