Annotation of src/usr.bin/ssh/scp.c, Revision 1.252
1.252 ! millert 1: /* $OpenBSD: scp.c,v 1.251 2022/12/16 06:52:48 jmc 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) {
341: dup2(fdin, 0);
342: dup2(fdout, 1);
343:
344: replacearg(&args, 0, "%s", ssh_program);
1.193 millert 345: if (port != -1) {
346: addargs(&args, "-p");
347: addargs(&args, "%d", port);
348: }
1.169 markus 349: if (remuser != NULL) {
350: addargs(&args, "-l");
351: addargs(&args, "%s", remuser);
352: }
1.208 markus 353: addargs(&args, "-oBatchMode=yes");
1.169 markus 354: addargs(&args, "--");
355: addargs(&args, "%s", host);
356: addargs(&args, "%s", cmd);
357:
358: execvp(ssh_program, args.list);
359: perror(ssh_program);
360: exit(1);
361: } else if (pid == -1) {
362: fatal("fork: %s", strerror(errno));
363: }
364: while (waitpid(pid, &status, 0) == -1)
365: if (errno != EINTR)
366: fatal("do_cmd2: waitpid: %s", strerror(errno));
367: return 0;
368: }
369:
1.1 deraadt 370: typedef struct {
1.124 djm 371: size_t cnt;
1.1 deraadt 372: char *buf;
373: } BUF;
374:
1.18 markus 375: BUF *allocbuf(BUF *, int, int);
376: void lostconn(int);
377: int okname(char *);
1.211 millert 378: void run_err(const char *,...)
379: __attribute__((__format__ (printf, 1, 2)))
380: __attribute__((__nonnull__ (1)));
381: int note_err(const char *,...)
382: __attribute__((__format__ (printf, 1, 2)));
1.18 markus 383: void verifydir(char *);
1.1 deraadt 384:
385: struct passwd *pwd;
1.18 markus 386: uid_t userid;
1.219 djm 387: int errs, remin, remout, remin2, remout2;
1.202 djm 388: int Tflag, pflag, iamremote, iamrecursive, targetshouldbedirectory;
1.1 deraadt 389:
390: #define CMDNEEDS 64
391: char cmd[CMDNEEDS]; /* must hold "rcp -r -p -d\0" */
392:
1.216 djm 393: enum scp_mode_e {
394: MODE_SCP,
395: MODE_SFTP
396: };
397:
1.18 markus 398: int response(void);
399: void rsource(char *, struct stat *);
1.202 djm 400: void sink(int, char *[], const char *);
1.18 markus 401: void source(int, char *[]);
1.216 djm 402: void tolocal(int, char *[], enum scp_mode_e, char *sftp_direct);
403: void toremote(int, char *[], enum scp_mode_e, char *sftp_direct);
1.18 markus 404: void usage(void);
1.1 deraadt 405:
1.228 djm 406: void source_sftp(int, char *, char *, struct sftp_conn *);
1.216 djm 407: void sink_sftp(int, char *, const char *, struct sftp_conn *);
1.219 djm 408: void throughlocal_sftp(struct sftp_conn *, struct sftp_conn *,
1.228 djm 409: char *, char *);
1.216 djm 410:
1.1 deraadt 411: int
1.104 djm 412: main(int argc, char **argv)
1.1 deraadt 413: {
1.250 djm 414: int ch, fflag, tflag, status, r, n;
1.216 djm 415: char **newargv, *argv0;
1.167 djm 416: const char *errstr;
1.1 deraadt 417: extern char *optarg;
418: extern int optind;
1.246 deraadt 419: enum scp_mode_e mode = MODE_SFTP;
1.216 djm 420: char *sftp_direct = NULL;
1.250 djm 421: long long llv;
1.126 djm 422:
423: /* Ensure that fds 0, 1 and 2 are open or directed to /dev/null */
424: sanitise_stdfd();
1.145 djm 425:
1.186 schwarze 426: setlocale(LC_CTYPE, "");
427:
1.145 djm 428: /* Copy argv, because we modify it */
1.216 djm 429: argv0 = argv[0];
1.187 deraadt 430: newargv = xcalloc(MAXIMUM(argc + 1, 1), sizeof(*newargv));
1.145 djm 431: for (n = 0; n < argc; n++)
432: newargv[n] = xstrdup(argv[n]);
433: argv = newargv;
1.1 deraadt 434:
1.235 djm 435: log_init(argv0, log_level, SYSLOG_FACILITY_USER, 2);
1.218 djm 436:
1.129 djm 437: memset(&args, '\0', sizeof(args));
1.168 djm 438: memset(&remote_remote_args, '\0', sizeof(remote_remote_args));
439: args.list = remote_remote_args.list = NULL;
1.129 djm 440: addargs(&args, "%s", ssh_program);
1.70 mouring 441: addargs(&args, "-x");
1.168 djm 442: addargs(&args, "-oPermitLocalCommand=no");
443: addargs(&args, "-oClearAllForwardings=yes");
1.195 djm 444: addargs(&args, "-oRemoteCommand=none");
445: addargs(&args, "-oRequestTTY=no");
1.41 markus 446:
1.202 djm 447: fflag = Tflag = tflag = 0;
448: while ((ch = getopt(argc, argv,
1.250 djm 449: "12346ABCTdfOpqRrstvD:F:J:M:P:S:c:i:l:o:X:")) != -1) {
1.18 markus 450: switch (ch) {
451: /* User-visible flags. */
1.100 markus 452: case '1':
1.190 djm 453: fatal("SSH protocol v.1 is no longer supported");
454: break;
1.100 markus 455: case '2':
1.190 djm 456: /* Ignored */
457: break;
1.212 djm 458: case 'A':
1.23 markus 459: case '4':
1.41 markus 460: case '6':
461: case 'C':
1.70 mouring 462: addargs(&args, "-%c", ch);
1.168 djm 463: addargs(&remote_remote_args, "-%c", ch);
1.41 markus 464: break;
1.216 djm 465: case 'D':
466: sftp_direct = optarg;
467: break;
1.169 markus 468: case '3':
469: throughlocal = 1;
470: break;
1.229 djm 471: case 'R':
472: throughlocal = 0;
473: break;
1.41 markus 474: case 'o':
475: case 'c':
476: case 'i':
1.83 stevesk 477: case 'F':
1.199 tb 478: case 'J':
1.168 djm 479: addargs(&remote_remote_args, "-%c", ch);
480: addargs(&remote_remote_args, "%s", optarg);
1.165 guenther 481: addargs(&args, "-%c", ch);
482: addargs(&args, "%s", optarg);
1.23 markus 483: break;
1.230 djm 484: case 'O':
485: mode = MODE_SCP;
486: break;
487: case 's':
488: mode = MODE_SFTP;
489: break;
1.41 markus 490: case 'P':
1.193 millert 491: sshport = a2port(optarg);
492: if (sshport <= 0)
493: fatal("bad port \"%s\"\n", optarg);
1.41 markus 494: break;
495: case 'B':
1.168 djm 496: addargs(&remote_remote_args, "-oBatchmode=yes");
497: addargs(&args, "-oBatchmode=yes");
1.23 markus 498: break;
1.99 markus 499: case 'l':
1.167 djm 500: limit_kbps = strtonum(optarg, 1, 100 * 1024 * 1024,
501: &errstr);
502: if (errstr != NULL)
1.99 markus 503: usage();
1.167 djm 504: limit_kbps *= 1024; /* kbps */
505: bandwidth_limit_init(&bwlimit, limit_kbps, COPY_BUFLEN);
1.99 markus 506: break;
1.1 deraadt 507: case 'p':
508: pflag = 1;
509: break;
510: case 'r':
511: iamrecursive = 1;
512: break;
1.34 deraadt 513: case 'S':
1.41 markus 514: ssh_program = xstrdup(optarg);
515: break;
516: case 'v':
1.72 markus 517: addargs(&args, "-v");
1.168 djm 518: addargs(&remote_remote_args, "-v");
1.216 djm 519: if (verbose_mode == 0)
520: log_level = SYSLOG_LEVEL_DEBUG1;
521: else if (log_level < SYSLOG_LEVEL_DEBUG3)
522: log_level++;
1.41 markus 523: verbose_mode = 1;
524: break;
525: case 'q':
1.111 dtucker 526: addargs(&args, "-q");
1.168 djm 527: addargs(&remote_remote_args, "-q");
1.41 markus 528: showprogress = 0;
1.34 deraadt 529: break;
1.250 djm 530: case 'X':
531: /* Please keep in sync with sftp.c -X */
532: if (strncmp(optarg, "buffer=", 7) == 0) {
533: r = scan_scaled(optarg + 7, &llv);
534: if (r == 0 && (llv <= 0 || llv > 256 * 1024)) {
535: r = -1;
536: errno = EINVAL;
537: }
538: if (r == -1) {
539: fatal("Invalid buffer size \"%s\": %s",
540: optarg + 7, strerror(errno));
541: }
542: sftp_copy_buflen = (size_t)llv;
543: } else if (strncmp(optarg, "nrequests=", 10) == 0) {
544: llv = strtonum(optarg + 10, 1, 256 * 1024,
545: &errstr);
546: if (errstr != NULL) {
547: fatal("Invalid number of requests "
548: "\"%s\": %s", optarg + 10, errstr);
549: }
550: sftp_nrequests = (size_t)llv;
551: } else {
552: fatal("Invalid -X option");
553: }
554: break;
1.34 deraadt 555:
1.18 markus 556: /* Server options. */
1.1 deraadt 557: case 'd':
558: targetshouldbedirectory = 1;
559: break;
1.18 markus 560: case 'f': /* "from" */
1.1 deraadt 561: iamremote = 1;
562: fflag = 1;
563: break;
1.18 markus 564: case 't': /* "to" */
1.1 deraadt 565: iamremote = 1;
566: tflag = 1;
567: break;
1.202 djm 568: case 'T':
569: Tflag = 1;
570: break;
1.1 deraadt 571: default:
572: usage();
573: }
1.202 djm 574: }
1.1 deraadt 575: argc -= optind;
576: argv += optind;
577:
1.235 djm 578: log_init(argv0, log_level, SYSLOG_FACILITY_USER, 2);
1.216 djm 579:
1.212 djm 580: /* Do this last because we want the user to be able to override it */
581: addargs(&args, "-oForwardAgent=no");
582:
1.218 djm 583: if (iamremote)
584: mode = MODE_SCP;
1.216 djm 585:
1.1 deraadt 586: if ((pwd = getpwuid(userid = getuid())) == NULL)
1.108 deraadt 587: fatal("unknown user %u", (u_int) userid);
1.1 deraadt 588:
1.156 djm 589: if (!isatty(STDOUT_FILENO))
1.7 deraadt 590: showprogress = 0;
1.184 deraadt 591:
592: if (pflag) {
593: /* Cannot pledge: -p allows setuid/setgid files... */
594: } else {
595: if (pledge("stdio rpath wpath cpath fattr tty proc exec",
596: NULL) == -1) {
597: perror("pledge");
598: exit(1);
599: }
600: }
1.7 deraadt 601:
1.1 deraadt 602: remin = STDIN_FILENO;
603: remout = STDOUT_FILENO;
604:
1.52 stevesk 605: if (fflag) {
1.18 markus 606: /* Follow "protocol", send data. */
607: (void) response();
1.1 deraadt 608: source(argc, argv);
609: exit(errs != 0);
610: }
1.18 markus 611: if (tflag) {
612: /* Receive data. */
1.202 djm 613: sink(argc, argv, NULL);
1.1 deraadt 614: exit(errs != 0);
615: }
616: if (argc < 2)
617: usage();
618: if (argc > 2)
619: targetshouldbedirectory = 1;
620:
621: remin = remout = -1;
1.92 markus 622: do_cmd_pid = -1;
1.1 deraadt 623: /* Command to be executed on remote system using "ssh". */
1.55 deraadt 624: (void) snprintf(cmd, sizeof cmd, "scp%s%s%s%s",
625: verbose_mode ? " -v" : "",
1.35 deraadt 626: iamrecursive ? " -r" : "", pflag ? " -p" : "",
627: targetshouldbedirectory ? " -d" : "");
1.1 deraadt 628:
1.207 dtucker 629: (void) ssh_signal(SIGPIPE, lostconn);
1.1 deraadt 630:
1.193 millert 631: if (colon(argv[argc - 1])) /* Dest is remote host. */
1.216 djm 632: toremote(argc, argv, mode, sftp_direct);
1.1 deraadt 633: else {
634: if (targetshouldbedirectory)
635: verifydir(argv[argc - 1]);
1.216 djm 636: tolocal(argc, argv, mode, sftp_direct); /* Dest is local host. */
1.92 markus 637: }
638: /*
639: * Finally check the exit status of the ssh process, if one was forked
1.164 stevesk 640: * and no error has occurred yet
1.92 markus 641: */
1.234 djm 642: if (do_cmd_pid != -1 && (mode == MODE_SFTP || errs == 0)) {
1.92 markus 643: if (remin != -1)
644: (void) close(remin);
645: if (remout != -1)
646: (void) close(remout);
647: if (waitpid(do_cmd_pid, &status, 0) == -1)
648: errs = 1;
649: else {
650: if (!WIFEXITED(status) || WEXITSTATUS(status) != 0)
651: errs = 1;
652: }
1.1 deraadt 653: }
654: exit(errs != 0);
655: }
656:
1.167 djm 657: /* Callback from atomicio6 to update progress meter and limit bandwidth */
658: static int
659: scpio(void *_cnt, size_t s)
1.161 djm 660: {
1.167 djm 661: off_t *cnt = (off_t *)_cnt;
662:
663: *cnt += s;
1.201 dtucker 664: refresh_progress_meter(0);
1.167 djm 665: if (limit_kbps > 0)
666: bandwidth_limit(&bwlimit, s);
667: return 0;
1.161 djm 668: }
669:
1.176 guenther 670: static int
671: do_times(int fd, int verb, const struct stat *sb)
672: {
673: /* strlen(2^64) == 20; strlen(10^6) == 7 */
674: char buf[(20 + 7 + 2) * 2 + 2];
675:
676: (void)snprintf(buf, sizeof(buf), "T%llu 0 %llu 0\n",
677: (unsigned long long) (sb->st_mtime < 0 ? 0 : sb->st_mtime),
678: (unsigned long long) (sb->st_atime < 0 ? 0 : sb->st_atime));
679: if (verb) {
680: fprintf(stderr, "File mtime %lld atime %lld\n",
681: (long long)sb->st_mtime, (long long)sb->st_atime);
682: fprintf(stderr, "Sending file timestamps: %s", buf);
683: }
684: (void) atomicio(vwrite, fd, buf, strlen(buf));
685: return (response());
686: }
687:
1.194 millert 688: static int
689: parse_scp_uri(const char *uri, char **userp, char **hostp, int *portp,
1.214 djm 690: char **pathp)
1.194 millert 691: {
692: int r;
693:
694: r = parse_uri("scp", uri, userp, hostp, portp, pathp);
695: if (r == 0 && *pathp == NULL)
696: *pathp = xstrdup(".");
697: return r;
698: }
699:
1.204 djm 700: /* Appends a string to an array; returns 0 on success, -1 on alloc failure */
701: static int
702: append(char *cp, char ***ap, size_t *np)
703: {
704: char **tmp;
705:
706: if ((tmp = reallocarray(*ap, *np + 1, sizeof(*tmp))) == NULL)
707: return -1;
708: tmp[(*np)] = cp;
709: (*np)++;
710: *ap = tmp;
711: return 0;
712: }
713:
714: /*
715: * Finds the start and end of the first brace pair in the pattern.
716: * returns 0 on success or -1 for invalid patterns.
717: */
718: static int
719: find_brace(const char *pattern, int *startp, int *endp)
720: {
721: int i;
722: int in_bracket, brace_level;
723:
724: *startp = *endp = -1;
725: in_bracket = brace_level = 0;
726: for (i = 0; i < INT_MAX && *endp < 0 && pattern[i] != '\0'; i++) {
727: switch (pattern[i]) {
728: case '\\':
729: /* skip next character */
730: if (pattern[i + 1] != '\0')
731: i++;
732: break;
733: case '[':
734: in_bracket = 1;
735: break;
736: case ']':
737: in_bracket = 0;
738: break;
739: case '{':
740: if (in_bracket)
741: break;
742: if (pattern[i + 1] == '}') {
743: /* Protect a single {}, for find(1), like csh */
744: i++; /* skip */
745: break;
746: }
747: if (*startp == -1)
748: *startp = i;
749: brace_level++;
750: break;
751: case '}':
752: if (in_bracket)
753: break;
754: if (*startp < 0) {
755: /* Unbalanced brace */
756: return -1;
757: }
758: if (--brace_level <= 0)
759: *endp = i;
760: break;
761: }
762: }
763: /* unbalanced brackets/braces */
764: if (*endp < 0 && (*startp >= 0 || in_bracket))
765: return -1;
766: return 0;
767: }
768:
769: /*
770: * Assembles and records a successfully-expanded pattern, returns -1 on
771: * alloc failure.
772: */
773: static int
774: emit_expansion(const char *pattern, int brace_start, int brace_end,
775: int sel_start, int sel_end, char ***patternsp, size_t *npatternsp)
776: {
777: char *cp;
778: int o = 0, tail_len = strlen(pattern + brace_end + 1);
779:
780: if ((cp = malloc(brace_start + (sel_end - sel_start) +
781: tail_len + 1)) == NULL)
782: return -1;
783:
784: /* Pattern before initial brace */
785: if (brace_start > 0) {
786: memcpy(cp, pattern, brace_start);
787: o = brace_start;
788: }
789: /* Current braced selection */
790: if (sel_end - sel_start > 0) {
791: memcpy(cp + o, pattern + sel_start,
792: sel_end - sel_start);
793: o += sel_end - sel_start;
794: }
795: /* Remainder of pattern after closing brace */
796: if (tail_len > 0) {
797: memcpy(cp + o, pattern + brace_end + 1, tail_len);
798: o += tail_len;
799: }
800: cp[o] = '\0';
801: if (append(cp, patternsp, npatternsp) != 0) {
802: free(cp);
803: return -1;
804: }
805: return 0;
806: }
807:
808: /*
809: * Expand the first encountered brace in pattern, appending the expanded
810: * patterns it yielded to the *patternsp array.
811: *
812: * Returns 0 on success or -1 on allocation failure.
813: *
814: * Signals whether expansion was performed via *expanded and whether
815: * pattern was invalid via *invalid.
816: */
817: static int
818: brace_expand_one(const char *pattern, char ***patternsp, size_t *npatternsp,
819: int *expanded, int *invalid)
820: {
821: int i;
822: int in_bracket, brace_start, brace_end, brace_level;
823: int sel_start, sel_end;
824:
825: *invalid = *expanded = 0;
826:
827: if (find_brace(pattern, &brace_start, &brace_end) != 0) {
828: *invalid = 1;
829: return 0;
830: } else if (brace_start == -1)
831: return 0;
832:
833: in_bracket = brace_level = 0;
834: for (i = sel_start = brace_start + 1; i < brace_end; i++) {
835: switch (pattern[i]) {
836: case '{':
837: if (in_bracket)
838: break;
839: brace_level++;
840: break;
841: case '}':
842: if (in_bracket)
843: break;
844: brace_level--;
845: break;
846: case '[':
847: in_bracket = 1;
848: break;
849: case ']':
850: in_bracket = 0;
851: break;
852: case '\\':
853: if (i < brace_end - 1)
854: i++; /* skip */
855: break;
856: }
857: if (pattern[i] == ',' || i == brace_end - 1) {
858: if (in_bracket || brace_level > 0)
859: continue;
860: /* End of a selection, emit an expanded pattern */
861:
862: /* Adjust end index for last selection */
863: sel_end = (i == brace_end - 1) ? brace_end : i;
864: if (emit_expansion(pattern, brace_start, brace_end,
865: sel_start, sel_end, patternsp, npatternsp) != 0)
866: return -1;
867: /* move on to the next selection */
868: sel_start = i + 1;
869: continue;
870: }
871: }
872: if (in_bracket || brace_level > 0) {
873: *invalid = 1;
874: return 0;
875: }
876: /* success */
877: *expanded = 1;
878: return 0;
879: }
880:
881: /* Expand braces from pattern. Returns 0 on success, -1 on failure */
882: static int
883: brace_expand(const char *pattern, char ***patternsp, size_t *npatternsp)
884: {
885: char *cp, *cp2, **active = NULL, **done = NULL;
886: size_t i, nactive = 0, ndone = 0;
887: int ret = -1, invalid = 0, expanded = 0;
888:
889: *patternsp = NULL;
890: *npatternsp = 0;
891:
892: /* Start the worklist with the original pattern */
893: if ((cp = strdup(pattern)) == NULL)
894: return -1;
895: if (append(cp, &active, &nactive) != 0) {
896: free(cp);
897: return -1;
898: }
899: while (nactive > 0) {
900: cp = active[nactive - 1];
901: nactive--;
902: if (brace_expand_one(cp, &active, &nactive,
903: &expanded, &invalid) == -1) {
904: free(cp);
905: goto fail;
906: }
907: if (invalid)
1.213 djm 908: fatal_f("invalid brace pattern \"%s\"", cp);
1.204 djm 909: if (expanded) {
910: /*
911: * Current entry expanded to new entries on the
912: * active list; discard the progenitor pattern.
913: */
914: free(cp);
915: continue;
916: }
917: /*
918: * Pattern did not expand; append the finename component to
919: * the completed list
920: */
921: if ((cp2 = strrchr(cp, '/')) != NULL)
922: *cp2++ = '\0';
923: else
924: cp2 = cp;
925: if (append(xstrdup(cp2), &done, &ndone) != 0) {
926: free(cp);
927: goto fail;
928: }
929: free(cp);
930: }
931: /* success */
932: *patternsp = done;
933: *npatternsp = ndone;
934: done = NULL;
935: ndone = 0;
936: ret = 0;
937: fail:
938: for (i = 0; i < nactive; i++)
939: free(active[i]);
940: free(active);
941: for (i = 0; i < ndone; i++)
942: free(done[i]);
943: free(done);
944: return ret;
945: }
946:
1.216 djm 947: static struct sftp_conn *
1.219 djm 948: do_sftp_connect(char *host, char *user, int port, char *sftp_direct,
949: int *reminp, int *remoutp, int *pidp)
1.216 djm 950: {
951: if (sftp_direct == NULL) {
1.231 naddy 952: if (do_cmd(ssh_program, host, user, port, 1, "sftp",
1.219 djm 953: reminp, remoutp, pidp) < 0)
1.216 djm 954: return NULL;
955:
956: } else {
1.247 djm 957: freeargs(&args);
1.216 djm 958: addargs(&args, "sftp-server");
1.231 naddy 959: if (do_cmd(sftp_direct, host, NULL, -1, 0, "sftp",
1.219 djm 960: reminp, remoutp, pidp) < 0)
1.216 djm 961: return NULL;
962: }
1.250 djm 963: return do_init(*reminp, *remoutp,
964: sftp_copy_buflen, sftp_nrequests, limit_kbps);
1.216 djm 965: }
966:
1.1 deraadt 967: void
1.216 djm 968: toremote(int argc, char **argv, enum scp_mode_e mode, char *sftp_direct)
1.1 deraadt 969: {
1.193 millert 970: char *suser = NULL, *host = NULL, *src = NULL;
971: char *bp, *tuser, *thost, *targ;
972: int sport = -1, tport = -1;
1.219 djm 973: struct sftp_conn *conn = NULL, *conn2 = NULL;
1.129 djm 974: arglist alist;
1.219 djm 975: int i, r, status;
1.168 djm 976: u_int j;
1.129 djm 977:
978: memset(&alist, '\0', sizeof(alist));
979: alist.list = NULL;
1.1 deraadt 980:
1.193 millert 981: /* Parse target */
1.194 millert 982: r = parse_scp_uri(argv[argc - 1], &tuser, &thost, &tport, &targ);
983: if (r == -1) {
984: fmprintf(stderr, "%s: invalid uri\n", argv[argc - 1]);
985: ++errs;
986: goto out;
987: }
1.193 millert 988: if (r != 0) {
989: if (parse_user_host_path(argv[argc - 1], &tuser, &thost,
1.194 millert 990: &targ) == -1) {
991: fmprintf(stderr, "%s: invalid target\n", argv[argc - 1]);
992: ++errs;
1.193 millert 993: goto out;
1.194 millert 994: }
1.129 djm 995: }
996:
1.193 millert 997: /* Parse source files */
1.1 deraadt 998: for (i = 0; i < argc - 1; i++) {
1.193 millert 999: free(suser);
1000: free(host);
1001: free(src);
1.194 millert 1002: r = parse_scp_uri(argv[i], &suser, &host, &sport, &src);
1003: if (r == -1) {
1004: fmprintf(stderr, "%s: invalid uri\n", argv[i]);
1005: ++errs;
1006: continue;
1007: }
1008: if (r != 0) {
1.193 millert 1009: parse_user_host_path(argv[i], &suser, &host, &src);
1.194 millert 1010: }
1.193 millert 1011: if (suser != NULL && !okname(suser)) {
1012: ++errs;
1013: continue;
1014: }
1015: if (host && throughlocal) { /* extended remote to remote */
1.219 djm 1016: if (mode == MODE_SFTP) {
1017: if (remin == -1) {
1018: /* Connect to dest now */
1019: conn = do_sftp_connect(thost, tuser,
1020: tport, sftp_direct,
1021: &remin, &remout, &do_cmd_pid);
1022: if (conn == NULL) {
1023: fatal("Unable to open "
1024: "destination connection");
1025: }
1026: debug3_f("origin in %d out %d pid %ld",
1027: remin, remout, (long)do_cmd_pid);
1028: }
1029: /*
1030: * XXX remember suser/host/sport and only
1031: * reconnect if they change between arguments.
1032: * would save reconnections for cases like
1033: * scp -3 hosta:/foo hosta:/bar hostb:
1034: */
1035: /* Connect to origin now */
1036: conn2 = do_sftp_connect(host, suser,
1037: sport, sftp_direct,
1038: &remin2, &remout2, &do_cmd_pid2);
1039: if (conn2 == NULL) {
1040: fatal("Unable to open "
1041: "source connection");
1042: }
1043: debug3_f("destination in %d out %d pid %ld",
1044: remin2, remout2, (long)do_cmd_pid2);
1.228 djm 1045: throughlocal_sftp(conn2, conn, src, targ);
1.219 djm 1046: (void) close(remin2);
1047: (void) close(remout2);
1048: remin2 = remout2 = -1;
1049: if (waitpid(do_cmd_pid2, &status, 0) == -1)
1050: ++errs;
1051: else if (!WIFEXITED(status) ||
1052: WEXITSTATUS(status) != 0)
1053: ++errs;
1054: do_cmd_pid2 = -1;
1055: continue;
1056: } else {
1057: xasprintf(&bp, "%s -f %s%s", cmd,
1058: *src == '-' ? "-- " : "", src);
1.231 naddy 1059: if (do_cmd(ssh_program, host, suser, sport, 0,
1.219 djm 1060: bp, &remin, &remout, &do_cmd_pid) < 0)
1061: exit(1);
1062: free(bp);
1063: xasprintf(&bp, "%s -t %s%s", cmd,
1064: *targ == '-' ? "-- " : "", targ);
1065: if (do_cmd2(thost, tuser, tport, bp,
1066: remin, remout) < 0)
1067: exit(1);
1068: free(bp);
1069: (void) close(remin);
1070: (void) close(remout);
1071: remin = remout = -1;
1072: }
1.193 millert 1073: } else if (host) { /* standard remote to remote */
1.215 djm 1074: /*
1075: * Second remote user is passed to first remote side
1076: * via scp command-line. Ensure it contains no obvious
1077: * shell characters.
1078: */
1079: if (tuser != NULL && !okname(tuser)) {
1080: ++errs;
1081: continue;
1082: }
1.193 millert 1083: if (tport != -1 && tport != SSH_DEFAULT_PORT) {
1084: /* This would require the remote support URIs */
1085: fatal("target port not supported with two "
1.232 naddy 1086: "remote hosts and the -R option");
1.193 millert 1087: }
1088:
1.129 djm 1089: freeargs(&alist);
1090: addargs(&alist, "%s", ssh_program);
1091: addargs(&alist, "-x");
1.168 djm 1092: addargs(&alist, "-oClearAllForwardings=yes");
1.129 djm 1093: addargs(&alist, "-n");
1.168 djm 1094: for (j = 0; j < remote_remote_args.num; j++) {
1095: addargs(&alist, "%s",
1096: remote_remote_args.list[j]);
1097: }
1.193 millert 1098:
1099: if (sport != -1) {
1100: addargs(&alist, "-p");
1101: addargs(&alist, "%d", sport);
1102: }
1103: if (suser) {
1.129 djm 1104: addargs(&alist, "-l");
1105: addargs(&alist, "%s", suser);
1.23 markus 1106: }
1.165 guenther 1107: addargs(&alist, "--");
1.129 djm 1108: addargs(&alist, "%s", host);
1109: addargs(&alist, "%s", cmd);
1110: addargs(&alist, "%s", src);
1111: addargs(&alist, "%s%s%s:%s",
1112: tuser ? tuser : "", tuser ? "@" : "",
1113: thost, targ);
1114: if (do_local_cmd(&alist) != 0)
1.109 markus 1115: errs = 1;
1.18 markus 1116: } else { /* local to remote */
1.216 djm 1117: if (mode == MODE_SFTP) {
1118: if (remin == -1) {
1119: /* Connect to remote now */
1120: conn = do_sftp_connect(thost, tuser,
1.219 djm 1121: tport, sftp_direct,
1122: &remin, &remout, &do_cmd_pid);
1.216 djm 1123: if (conn == NULL) {
1124: fatal("Unable to open sftp "
1125: "connection");
1126: }
1127: }
1128:
1129: /* The protocol */
1.228 djm 1130: source_sftp(1, argv[i], targ, conn);
1.216 djm 1131: continue;
1132: }
1133: /* SCP */
1.1 deraadt 1134: if (remin == -1) {
1.171 djm 1135: xasprintf(&bp, "%s -t %s%s", cmd,
1136: *targ == '-' ? "-- " : "", targ);
1.231 naddy 1137: if (do_cmd(ssh_program, thost, tuser, tport, 0,
1138: bp, &remin, &remout, &do_cmd_pid) < 0)
1.18 markus 1139: exit(1);
1.1 deraadt 1140: if (response() < 0)
1141: exit(1);
1.173 djm 1142: free(bp);
1.1 deraadt 1143: }
1.18 markus 1144: source(1, argv + i);
1.1 deraadt 1145: }
1146: }
1.193 millert 1147: out:
1.228 djm 1148: if (mode == MODE_SFTP)
1.216 djm 1149: free(conn);
1.193 millert 1150: free(tuser);
1151: free(thost);
1152: free(targ);
1153: free(suser);
1154: free(host);
1155: free(src);
1.1 deraadt 1156: }
1157:
1158: void
1.216 djm 1159: tolocal(int argc, char **argv, enum scp_mode_e mode, char *sftp_direct)
1.1 deraadt 1160: {
1.193 millert 1161: char *bp, *host = NULL, *src = NULL, *suser = NULL;
1.129 djm 1162: arglist alist;
1.216 djm 1163: struct sftp_conn *conn = NULL;
1.193 millert 1164: int i, r, sport = -1;
1.129 djm 1165:
1166: memset(&alist, '\0', sizeof(alist));
1167: alist.list = NULL;
1.1 deraadt 1168:
1169: for (i = 0; i < argc - 1; i++) {
1.193 millert 1170: free(suser);
1171: free(host);
1172: free(src);
1.194 millert 1173: r = parse_scp_uri(argv[i], &suser, &host, &sport, &src);
1.193 millert 1174: if (r == -1) {
1.194 millert 1175: fmprintf(stderr, "%s: invalid uri\n", argv[i]);
1.193 millert 1176: ++errs;
1177: continue;
1178: }
1179: if (r != 0)
1180: parse_user_host_path(argv[i], &suser, &host, &src);
1181: if (suser != NULL && !okname(suser)) {
1182: ++errs;
1183: continue;
1184: }
1185: if (!host) { /* Local to local. */
1.129 djm 1186: freeargs(&alist);
1187: addargs(&alist, "%s", _PATH_CP);
1188: if (iamrecursive)
1189: addargs(&alist, "-r");
1190: if (pflag)
1191: addargs(&alist, "-p");
1.165 guenther 1192: addargs(&alist, "--");
1.129 djm 1193: addargs(&alist, "%s", argv[i]);
1194: addargs(&alist, "%s", argv[argc-1]);
1195: if (do_local_cmd(&alist))
1.1 deraadt 1196: ++errs;
1197: continue;
1198: }
1.193 millert 1199: /* Remote to local. */
1.216 djm 1200: if (mode == MODE_SFTP) {
1.219 djm 1201: conn = do_sftp_connect(host, suser, sport,
1202: sftp_direct, &remin, &remout, &do_cmd_pid);
1.216 djm 1203: if (conn == NULL) {
1.236 djm 1204: error("sftp connection failed");
1.216 djm 1205: ++errs;
1206: continue;
1207: }
1208:
1209: /* The protocol */
1210: sink_sftp(1, argv[argc - 1], src, conn);
1211:
1212: free(conn);
1213: (void) close(remin);
1214: (void) close(remout);
1215: remin = remout = -1;
1216: continue;
1217: }
1218: /* SCP */
1.171 djm 1219: xasprintf(&bp, "%s -f %s%s",
1220: cmd, *src == '-' ? "-- " : "", src);
1.231 naddy 1221: if (do_cmd(ssh_program, host, suser, sport, 0, bp,
1.219 djm 1222: &remin, &remout, &do_cmd_pid) < 0) {
1.173 djm 1223: free(bp);
1.18 markus 1224: ++errs;
1225: continue;
1.1 deraadt 1226: }
1.173 djm 1227: free(bp);
1.202 djm 1228: sink(1, argv + argc - 1, src);
1.18 markus 1229: (void) close(remin);
1.1 deraadt 1230: remin = remout = -1;
1231: }
1.193 millert 1232: free(suser);
1233: free(host);
1234: free(src);
1.1 deraadt 1235: }
1236:
1.228 djm 1237: /* Prepare remote path, handling ~ by assuming cwd is the homedir */
1.226 djm 1238: static char *
1.228 djm 1239: prepare_remote_path(struct sftp_conn *conn, const char *path)
1.226 djm 1240: {
1.242 djm 1241: size_t nslash;
1242:
1.228 djm 1243: /* Handle ~ prefixed paths */
1.242 djm 1244: if (*path == '\0' || strcmp(path, "~") == 0)
1245: return xstrdup(".");
1.228 djm 1246: if (*path != '~')
1247: return xstrdup(path);
1.242 djm 1248: if (strncmp(path, "~/", 2) == 0) {
1249: if ((nslash = strspn(path + 2, "/")) == strlen(path + 2))
1250: return xstrdup(".");
1251: return xstrdup(path + 2 + nslash);
1252: }
1.227 djm 1253: if (can_expand_path(conn))
1254: return do_expand_path(conn, path);
1.228 djm 1255: /* No protocol extension */
1.237 djm 1256: error("server expand-path extension is required "
1257: "for ~user paths in SFTP mode");
1.228 djm 1258: return NULL;
1.226 djm 1259: }
1260:
1.1 deraadt 1261: void
1.228 djm 1262: source_sftp(int argc, char *src, char *targ, struct sftp_conn *conn)
1.216 djm 1263: {
1264: char *target = NULL, *filename = NULL, *abs_dst = NULL;
1.243 djm 1265: int src_is_dir, target_is_dir;
1266: Attrib a;
1267: struct stat st;
1268:
1269: memset(&a, '\0', sizeof(a));
1270: if (stat(src, &st) != 0)
1271: fatal("stat local \"%s\": %s", src, strerror(errno));
1272: src_is_dir = S_ISDIR(st.st_mode);
1.216 djm 1273: if ((filename = basename(src)) == NULL)
1.243 djm 1274: fatal("basename \"%s\": %s", src, strerror(errno));
1.216 djm 1275:
1276: /*
1277: * No need to glob here - the local shell already took care of
1278: * the expansions
1279: */
1.228 djm 1280: if ((target = prepare_remote_path(conn, targ)) == NULL)
1.226 djm 1281: cleanup_exit(255);
1.216 djm 1282: target_is_dir = remote_is_dir(conn, target);
1283: if (targetshouldbedirectory && !target_is_dir) {
1.243 djm 1284: debug("target directory \"%s\" does not exist", target);
1285: a.flags = SSH2_FILEXFER_ATTR_PERMISSIONS;
1286: a.perm = st.st_mode | 0700; /* ensure writable */
1287: if (do_mkdir(conn, target, &a, 1) != 0)
1288: cleanup_exit(255); /* error already logged */
1289: target_is_dir = 1;
1.216 djm 1290: }
1291: if (target_is_dir)
1292: abs_dst = path_append(target, filename);
1293: else {
1294: abs_dst = target;
1295: target = NULL;
1296: }
1297: debug3_f("copying local %s to remote %s", src, abs_dst);
1298:
1.243 djm 1299: if (src_is_dir && iamrecursive) {
1.220 djm 1300: if (upload_dir(conn, src, abs_dst, pflag,
1.248 djm 1301: SFTP_PROGRESS_ONLY, 0, 0, 1, 1) != 0) {
1.244 djm 1302: error("failed to upload directory %s to %s", src, targ);
1.234 djm 1303: errs = 1;
1.216 djm 1304: }
1.248 djm 1305: } else if (do_upload(conn, src, abs_dst, pflag, 0, 0, 1) != 0) {
1.244 djm 1306: error("failed to upload file %s to %s", src, targ);
1.234 djm 1307: errs = 1;
1308: }
1.216 djm 1309:
1310: free(abs_dst);
1311: free(target);
1312: }
1313:
1314: void
1.104 djm 1315: source(int argc, char **argv)
1.1 deraadt 1316: {
1317: struct stat stb;
1318: static BUF buffer;
1319: BUF *bp;
1.163 dtucker 1320: off_t i, statbytes;
1.180 djm 1321: size_t amt, nr;
1.125 dtucker 1322: int fd = -1, haderr, indx;
1.206 dtucker 1323: char *last, *name, buf[PATH_MAX + 128], encname[PATH_MAX];
1.65 deraadt 1324: int len;
1.1 deraadt 1325:
1326: for (indx = 0; indx < argc; ++indx) {
1.18 markus 1327: name = argv[indx];
1.11 aaron 1328: statbytes = 0;
1.65 deraadt 1329: len = strlen(name);
1330: while (len > 1 && name[len-1] == '/')
1331: name[--len] = '\0';
1.241 deraadt 1332: if ((fd = open(name, O_RDONLY|O_NONBLOCK)) == -1)
1.158 dtucker 1333: goto syserr;
1.85 markus 1334: if (strchr(name, '\n') != NULL) {
1.158 dtucker 1335: strnvis(encname, name, sizeof(encname), VIS_NL);
1336: name = encname;
1.85 markus 1337: }
1.205 deraadt 1338: if (fstat(fd, &stb) == -1) {
1.1 deraadt 1339: syserr: run_err("%s: %s", name, strerror(errno));
1340: goto next;
1341: }
1.163 dtucker 1342: if (stb.st_size < 0) {
1343: run_err("%s: %s", name, "Negative file size");
1344: goto next;
1345: }
1.157 djm 1346: unset_nonblock(fd);
1.1 deraadt 1347: switch (stb.st_mode & S_IFMT) {
1348: case S_IFREG:
1349: break;
1350: case S_IFDIR:
1351: if (iamrecursive) {
1352: rsource(name, &stb);
1353: goto next;
1354: }
1355: /* FALLTHROUGH */
1356: default:
1357: run_err("%s: not a regular file", name);
1358: goto next;
1359: }
1360: if ((last = strrchr(name, '/')) == NULL)
1361: last = name;
1362: else
1363: ++last;
1.11 aaron 1364: curfile = last;
1.1 deraadt 1365: if (pflag) {
1.176 guenther 1366: if (do_times(remout, verbose_mode, &stb) < 0)
1.1 deraadt 1367: goto next;
1368: }
1369: #define FILEMODEMASK (S_ISUID|S_ISGID|S_IRWXU|S_IRWXG|S_IRWXO)
1.61 markus 1370: snprintf(buf, sizeof buf, "C%04o %lld %s\n",
1.47 markus 1371: (u_int) (stb.st_mode & FILEMODEMASK),
1.62 markus 1372: (long long)stb.st_size, last);
1.186 schwarze 1373: if (verbose_mode)
1374: fmprintf(stderr, "Sending file modes: %s", buf);
1.107 deraadt 1375: (void) atomicio(vwrite, remout, buf, strlen(buf));
1.1 deraadt 1376: if (response() < 0)
1377: goto next;
1.161 djm 1378: if ((bp = allocbuf(&buffer, fd, COPY_BUFLEN)) == NULL) {
1.127 deraadt 1379: next: if (fd != -1) {
1380: (void) close(fd);
1381: fd = -1;
1382: }
1.1 deraadt 1383: continue;
1384: }
1.97 fgsch 1385: if (showprogress)
1386: start_progress_meter(curfile, stb.st_size, &statbytes);
1.161 djm 1387: set_nonblock(remout);
1.1 deraadt 1388: for (haderr = i = 0; i < stb.st_size; i += bp->cnt) {
1389: amt = bp->cnt;
1.163 dtucker 1390: if (i + (off_t)amt > stb.st_size)
1.1 deraadt 1391: amt = stb.st_size - i;
1392: if (!haderr) {
1.180 djm 1393: if ((nr = atomicio(read, fd,
1394: bp->buf, amt)) != amt) {
1.122 avsm 1395: haderr = errno;
1.180 djm 1396: memset(bp->buf + nr, 0, amt - nr);
1397: }
1.1 deraadt 1398: }
1.161 djm 1399: /* Keep writing after error to retain sync */
1400: if (haderr) {
1401: (void)atomicio(vwrite, remout, bp->buf, amt);
1.180 djm 1402: memset(bp->buf, 0, amt);
1.161 djm 1403: continue;
1.1 deraadt 1404: }
1.167 djm 1405: if (atomicio6(vwrite, remout, bp->buf, amt, scpio,
1.161 djm 1406: &statbytes) != amt)
1407: haderr = errno;
1.1 deraadt 1408: }
1.161 djm 1409: unset_nonblock(remout);
1.4 aaron 1410:
1.127 deraadt 1411: if (fd != -1) {
1.205 deraadt 1412: if (close(fd) == -1 && !haderr)
1.127 deraadt 1413: haderr = errno;
1414: fd = -1;
1415: }
1.1 deraadt 1416: if (!haderr)
1.107 deraadt 1417: (void) atomicio(vwrite, remout, "", 1);
1.1 deraadt 1418: else
1419: run_err("%s: %s", name, strerror(haderr));
1.18 markus 1420: (void) response();
1.185 dtucker 1421: if (showprogress)
1422: stop_progress_meter();
1.1 deraadt 1423: }
1424: }
1425:
1426: void
1.104 djm 1427: rsource(char *name, struct stat *statp)
1.1 deraadt 1428: {
1429: DIR *dirp;
1430: struct dirent *dp;
1.181 deraadt 1431: char *last, *vect[1], path[PATH_MAX];
1.1 deraadt 1432:
1433: if (!(dirp = opendir(name))) {
1434: run_err("%s: %s", name, strerror(errno));
1435: return;
1436: }
1437: last = strrchr(name, '/');
1.183 mmcc 1438: if (last == NULL)
1.1 deraadt 1439: last = name;
1440: else
1441: last++;
1442: if (pflag) {
1.176 guenther 1443: if (do_times(remout, verbose_mode, statp) < 0) {
1.1 deraadt 1444: closedir(dirp);
1445: return;
1446: }
1447: }
1.55 deraadt 1448: (void) snprintf(path, sizeof path, "D%04o %d %.1024s\n",
1.47 markus 1449: (u_int) (statp->st_mode & FILEMODEMASK), 0, last);
1.18 markus 1450: if (verbose_mode)
1.186 schwarze 1451: fmprintf(stderr, "Entering directory: %s", path);
1.107 deraadt 1452: (void) atomicio(vwrite, remout, path, strlen(path));
1.1 deraadt 1453: if (response() < 0) {
1454: closedir(dirp);
1455: return;
1456: }
1.63 stevesk 1457: while ((dp = readdir(dirp)) != NULL) {
1.1 deraadt 1458: if (dp->d_ino == 0)
1459: continue;
1460: if (!strcmp(dp->d_name, ".") || !strcmp(dp->d_name, ".."))
1461: continue;
1462: if (strlen(name) + 1 + strlen(dp->d_name) >= sizeof(path) - 1) {
1463: run_err("%s/%s: name too long", name, dp->d_name);
1464: continue;
1465: }
1.55 deraadt 1466: (void) snprintf(path, sizeof path, "%s/%s", name, dp->d_name);
1.1 deraadt 1467: vect[0] = path;
1468: source(1, vect);
1469: }
1.18 markus 1470: (void) closedir(dirp);
1.107 deraadt 1471: (void) atomicio(vwrite, remout, "E\n", 2);
1.18 markus 1472: (void) response();
1.1 deraadt 1473: }
1474:
1.216 djm 1475: void
1476: sink_sftp(int argc, char *dst, const char *src, struct sftp_conn *conn)
1477: {
1478: char *abs_src = NULL;
1479: char *abs_dst = NULL;
1480: glob_t g;
1.228 djm 1481: char *filename, *tmp = NULL;
1.243 djm 1482: int i, r, err = 0, dst_is_dir;
1483: struct stat st;
1.216 djm 1484:
1.226 djm 1485: memset(&g, 0, sizeof(g));
1.243 djm 1486:
1.216 djm 1487: /*
1488: * Here, we need remote glob as SFTP can not depend on remote shell
1489: * expansions
1490: */
1.228 djm 1491: if ((abs_src = prepare_remote_path(conn, src)) == NULL) {
1.226 djm 1492: err = -1;
1493: goto out;
1494: }
1.216 djm 1495:
1496: debug3_f("copying remote %s to local %s", abs_src, dst);
1.249 djm 1497: if ((r = remote_glob(conn, abs_src, GLOB_NOCHECK|GLOB_MARK,
1498: NULL, &g)) != 0) {
1.216 djm 1499: if (r == GLOB_NOSPACE)
1.244 djm 1500: error("%s: too many glob matches", src);
1.216 djm 1501: else
1.244 djm 1502: error("%s: %s", src, strerror(ENOENT));
1.216 djm 1503: err = -1;
1504: goto out;
1505: }
1506:
1.249 djm 1507: /* Did we actually get any matches back from the glob? */
1508: if (g.gl_matchc == 0 && g.gl_pathc == 1 && g.gl_pathv[0] != 0) {
1509: /*
1510: * If nothing matched but a path returned, then it's probably
1511: * a GLOB_NOCHECK result. Check whether the unglobbed path
1512: * exists so we can give a nice error message early.
1513: */
1514: if (do_stat(conn, g.gl_pathv[0], 1) == NULL) {
1515: error("%s: %s", src, strerror(ENOENT));
1516: err = -1;
1517: goto out;
1518: }
1519: }
1520:
1.243 djm 1521: if ((r = stat(dst, &st)) != 0)
1522: debug2_f("stat local \"%s\": %s", dst, strerror(errno));
1523: dst_is_dir = r == 0 && S_ISDIR(st.st_mode);
1524:
1525: if (g.gl_matchc > 1 && !dst_is_dir) {
1526: if (r == 0) {
1527: error("Multiple files match pattern, but destination "
1528: "\"%s\" is not a directory", dst);
1529: err = -1;
1530: goto out;
1531: }
1532: debug2_f("creating destination \"%s\"", dst);
1533: if (mkdir(dst, 0777) != 0) {
1534: error("local mkdir \"%s\": %s", dst, strerror(errno));
1535: err = -1;
1536: goto out;
1537: }
1538: dst_is_dir = 1;
1.216 djm 1539: }
1540:
1541: for (i = 0; g.gl_pathv[i] && !interrupted; i++) {
1542: tmp = xstrdup(g.gl_pathv[i]);
1543: if ((filename = basename(tmp)) == NULL) {
1544: error("basename %s: %s", tmp, strerror(errno));
1545: err = -1;
1546: goto out;
1547: }
1548:
1.243 djm 1549: if (dst_is_dir)
1.216 djm 1550: abs_dst = path_append(dst, filename);
1551: else
1552: abs_dst = xstrdup(dst);
1553:
1554: debug("Fetching %s to %s\n", g.gl_pathv[i], abs_dst);
1555: if (globpath_is_dir(g.gl_pathv[i]) && iamrecursive) {
1556: if (download_dir(conn, g.gl_pathv[i], abs_dst, NULL,
1.248 djm 1557: pflag, SFTP_PROGRESS_ONLY, 0, 0, 1, 1) == -1)
1.216 djm 1558: err = -1;
1559: } else {
1560: if (do_download(conn, g.gl_pathv[i], abs_dst, NULL,
1.248 djm 1561: pflag, 0, 0, 1) == -1)
1.216 djm 1562: err = -1;
1563: }
1564: free(abs_dst);
1565: abs_dst = NULL;
1.217 dtucker 1566: free(tmp);
1567: tmp = NULL;
1.216 djm 1568: }
1569:
1570: out:
1571: free(abs_src);
1.217 dtucker 1572: free(tmp);
1.216 djm 1573: globfree(&g);
1.235 djm 1574: if (err == -1)
1.234 djm 1575: errs = 1;
1.216 djm 1576: }
1577:
1578:
1.189 millert 1579: #define TYPE_OVERFLOW(type, val) \
1580: ((sizeof(type) == 4 && (val) > INT32_MAX) || \
1581: (sizeof(type) == 8 && (val) > INT64_MAX) || \
1582: (sizeof(type) != 4 && sizeof(type) != 8))
1583:
1.1 deraadt 1584: void
1.202 djm 1585: sink(int argc, char **argv, const char *src)
1.1 deraadt 1586: {
1587: static BUF buffer;
1588: struct stat stb;
1589: BUF *bp;
1.122 avsm 1590: off_t i;
1.124 djm 1591: size_t j, count;
1.140 deraadt 1592: int amt, exists, first, ofd;
1593: mode_t mode, omode, mask;
1.97 fgsch 1594: off_t size, statbytes;
1.176 guenther 1595: unsigned long long ull;
1.209 djm 1596: int setimes, targisdir, wrerr;
1.186 schwarze 1597: char ch, *cp, *np, *targ, *why, *vect[1], buf[2048], visbuf[2048];
1.204 djm 1598: char **patterns = NULL;
1599: size_t n, npatterns = 0;
1.40 markus 1600: struct timeval tv[2];
1.1 deraadt 1601:
1.66 stevesk 1602: #define atime tv[0]
1603: #define mtime tv[1]
1.118 deraadt 1604: #define SCREWUP(str) { why = str; goto screwup; }
1.1 deraadt 1605:
1.189 millert 1606: if (TYPE_OVERFLOW(time_t, 0) || TYPE_OVERFLOW(off_t, 0))
1607: SCREWUP("Unexpected off_t/time_t size");
1608:
1.1 deraadt 1609: setimes = targisdir = 0;
1610: mask = umask(0);
1611: if (!pflag)
1.18 markus 1612: (void) umask(mask);
1.1 deraadt 1613: if (argc != 1) {
1614: run_err("ambiguous target");
1615: exit(1);
1616: }
1617: targ = *argv;
1618: if (targetshouldbedirectory)
1619: verifydir(targ);
1.18 markus 1620:
1.107 deraadt 1621: (void) atomicio(vwrite, remout, "", 1);
1.1 deraadt 1622: if (stat(targ, &stb) == 0 && S_ISDIR(stb.st_mode))
1623: targisdir = 1;
1.202 djm 1624: if (src != NULL && !iamrecursive && !Tflag) {
1625: /*
1626: * Prepare to try to restrict incoming filenames to match
1627: * the requested destination file glob.
1628: */
1.204 djm 1629: if (brace_expand(src, &patterns, &npatterns) != 0)
1.213 djm 1630: fatal_f("could not expand pattern");
1.202 djm 1631: }
1.1 deraadt 1632: for (first = 1;; first = 0) {
1633: cp = buf;
1.122 avsm 1634: if (atomicio(read, remin, cp, 1) != 1)
1.204 djm 1635: goto done;
1.1 deraadt 1636: if (*cp++ == '\n')
1637: SCREWUP("unexpected <newline>");
1638: do {
1.30 deraadt 1639: if (atomicio(read, remin, &ch, sizeof(ch)) != sizeof(ch))
1.1 deraadt 1640: SCREWUP("lost connection");
1641: *cp++ = ch;
1642: } while (cp < &buf[sizeof(buf) - 1] && ch != '\n');
1643: *cp = 0;
1.114 markus 1644: if (verbose_mode)
1.186 schwarze 1645: fmprintf(stderr, "Sink: %s", buf);
1.1 deraadt 1646:
1647: if (buf[0] == '\01' || buf[0] == '\02') {
1.186 schwarze 1648: if (iamremote == 0) {
1649: (void) snmprintf(visbuf, sizeof(visbuf),
1650: NULL, "%s", buf + 1);
1.107 deraadt 1651: (void) atomicio(vwrite, STDERR_FILENO,
1.186 schwarze 1652: visbuf, strlen(visbuf));
1653: }
1.1 deraadt 1654: if (buf[0] == '\02')
1655: exit(1);
1656: ++errs;
1657: continue;
1658: }
1659: if (buf[0] == 'E') {
1.107 deraadt 1660: (void) atomicio(vwrite, remout, "", 1);
1.204 djm 1661: goto done;
1.1 deraadt 1662: }
1663: if (ch == '\n')
1664: *--cp = 0;
1665:
1666: cp = buf;
1667: if (*cp == 'T') {
1668: setimes++;
1669: cp++;
1.176 guenther 1670: if (!isdigit((unsigned char)*cp))
1671: SCREWUP("mtime.sec not present");
1672: ull = strtoull(cp, &cp, 10);
1.66 stevesk 1673: if (!cp || *cp++ != ' ')
1.1 deraadt 1674: SCREWUP("mtime.sec not delimited");
1.189 millert 1675: if (TYPE_OVERFLOW(time_t, ull))
1.176 guenther 1676: setimes = 0; /* out of range */
1677: mtime.tv_sec = ull;
1.66 stevesk 1678: mtime.tv_usec = strtol(cp, &cp, 10);
1.176 guenther 1679: if (!cp || *cp++ != ' ' || mtime.tv_usec < 0 ||
1680: mtime.tv_usec > 999999)
1.1 deraadt 1681: SCREWUP("mtime.usec not delimited");
1.176 guenther 1682: if (!isdigit((unsigned char)*cp))
1683: SCREWUP("atime.sec not present");
1684: ull = strtoull(cp, &cp, 10);
1.66 stevesk 1685: if (!cp || *cp++ != ' ')
1.1 deraadt 1686: SCREWUP("atime.sec not delimited");
1.189 millert 1687: if (TYPE_OVERFLOW(time_t, ull))
1.176 guenther 1688: setimes = 0; /* out of range */
1689: atime.tv_sec = ull;
1.66 stevesk 1690: atime.tv_usec = strtol(cp, &cp, 10);
1.176 guenther 1691: if (!cp || *cp++ != '\0' || atime.tv_usec < 0 ||
1692: atime.tv_usec > 999999)
1.1 deraadt 1693: SCREWUP("atime.usec not delimited");
1.107 deraadt 1694: (void) atomicio(vwrite, remout, "", 1);
1.1 deraadt 1695: continue;
1696: }
1697: if (*cp != 'C' && *cp != 'D') {
1698: /*
1699: * Check for the case "rcp remote:foo\* local:bar".
1700: * In this case, the line "No match." can be returned
1701: * by the shell before the rcp command on the remote is
1702: * executed so the ^Aerror_message convention isn't
1703: * followed.
1704: */
1705: if (first) {
1706: run_err("%s", cp);
1707: exit(1);
1708: }
1709: SCREWUP("expected control record");
1710: }
1711: mode = 0;
1712: for (++cp; cp < buf + 5; cp++) {
1713: if (*cp < '0' || *cp > '7')
1714: SCREWUP("bad mode");
1715: mode = (mode << 3) | (*cp - '0');
1716: }
1.197 dtucker 1717: if (!pflag)
1718: mode &= ~mask;
1.1 deraadt 1719: if (*cp++ != ' ')
1720: SCREWUP("mode not delimited");
1721:
1.188 millert 1722: if (!isdigit((unsigned char)*cp))
1723: SCREWUP("size not present");
1724: ull = strtoull(cp, &cp, 10);
1725: if (!cp || *cp++ != ' ')
1.1 deraadt 1726: SCREWUP("size not delimited");
1.189 millert 1727: if (TYPE_OVERFLOW(off_t, ull))
1.188 millert 1728: SCREWUP("size out of range");
1729: size = (off_t)ull;
1730:
1.198 djm 1731: if (*cp == '\0' || strchr(cp, '/') != NULL ||
1732: strcmp(cp, ".") == 0 || strcmp(cp, "..") == 0) {
1.114 markus 1733: run_err("error: unexpected filename: %s", cp);
1734: exit(1);
1735: }
1.204 djm 1736: if (npatterns > 0) {
1737: for (n = 0; n < npatterns; n++) {
1.249 djm 1738: if (strcmp(patterns[n], cp) == 0 ||
1739: fnmatch(patterns[n], cp, 0) == 0)
1.204 djm 1740: break;
1741: }
1742: if (n >= npatterns)
1743: SCREWUP("filename does not match request");
1744: }
1.1 deraadt 1745: if (targisdir) {
1746: static char *namebuf;
1.124 djm 1747: static size_t cursize;
1.1 deraadt 1748: size_t need;
1749:
1750: need = strlen(targ) + strlen(cp) + 250;
1.55 deraadt 1751: if (need > cursize) {
1.173 djm 1752: free(namebuf);
1.18 markus 1753: namebuf = xmalloc(need);
1.55 deraadt 1754: cursize = need;
1755: }
1756: (void) snprintf(namebuf, need, "%s%s%s", targ,
1.88 mouring 1757: strcmp(targ, "/") ? "/" : "", cp);
1.1 deraadt 1758: np = namebuf;
1759: } else
1760: np = targ;
1.12 aaron 1761: curfile = cp;
1.1 deraadt 1762: exists = stat(np, &stb) == 0;
1763: if (buf[0] == 'D') {
1764: int mod_flag = pflag;
1.114 markus 1765: if (!iamrecursive)
1766: SCREWUP("received directory without -r");
1.1 deraadt 1767: if (exists) {
1768: if (!S_ISDIR(stb.st_mode)) {
1769: errno = ENOTDIR;
1770: goto bad;
1771: }
1772: if (pflag)
1.18 markus 1773: (void) chmod(np, mode);
1.1 deraadt 1774: } else {
1.214 djm 1775: /* Handle copying from a read-only directory */
1.1 deraadt 1776: mod_flag = 1;
1.205 deraadt 1777: if (mkdir(np, mode | S_IRWXU) == -1)
1.1 deraadt 1778: goto bad;
1779: }
1.58 danh 1780: vect[0] = xstrdup(np);
1.202 djm 1781: sink(1, vect, src);
1.1 deraadt 1782: if (setimes) {
1783: setimes = 0;
1.210 djm 1784: (void) utimes(vect[0], tv);
1.1 deraadt 1785: }
1786: if (mod_flag)
1.59 deraadt 1787: (void) chmod(vect[0], mode);
1.173 djm 1788: free(vect[0]);
1.1 deraadt 1789: continue;
1790: }
1791: omode = mode;
1.174 dtucker 1792: mode |= S_IWUSR;
1.205 deraadt 1793: if ((ofd = open(np, O_WRONLY|O_CREAT, mode)) == -1) {
1.1 deraadt 1794: bad: run_err("%s: %s", np, strerror(errno));
1795: continue;
1796: }
1.107 deraadt 1797: (void) atomicio(vwrite, remout, "", 1);
1.161 djm 1798: if ((bp = allocbuf(&buffer, ofd, COPY_BUFLEN)) == NULL) {
1.18 markus 1799: (void) close(ofd);
1.1 deraadt 1800: continue;
1801: }
1802: cp = bp->buf;
1.209 djm 1803: wrerr = 0;
1.7 deraadt 1804:
1.209 djm 1805: /*
1806: * NB. do not use run_err() unless immediately followed by
1807: * exit() below as it may send a spurious reply that might
1808: * desyncronise us from the peer. Use note_err() instead.
1809: */
1.12 aaron 1810: statbytes = 0;
1.97 fgsch 1811: if (showprogress)
1812: start_progress_meter(curfile, size, &statbytes);
1.161 djm 1813: set_nonblock(remin);
1814: for (count = i = 0; i < size; i += bp->cnt) {
1815: amt = bp->cnt;
1.1 deraadt 1816: if (i + amt > size)
1817: amt = size - i;
1818: count += amt;
1819: do {
1.167 djm 1820: j = atomicio6(read, remin, cp, amt,
1821: scpio, &statbytes);
1.122 avsm 1822: if (j == 0) {
1.161 djm 1823: run_err("%s", j != EPIPE ?
1824: strerror(errno) :
1.63 stevesk 1825: "dropped connection");
1.1 deraadt 1826: exit(1);
1827: }
1828: amt -= j;
1829: cp += j;
1830: } while (amt > 0);
1.112 djm 1831:
1.1 deraadt 1832: if (count == bp->cnt) {
1833: /* Keep reading so we stay sync'd up. */
1.209 djm 1834: if (!wrerr) {
1.122 avsm 1835: if (atomicio(vwrite, ofd, bp->buf,
1836: count) != count) {
1.209 djm 1837: note_err("%s: %s", np,
1838: strerror(errno));
1839: wrerr = 1;
1.1 deraadt 1840: }
1841: }
1842: count = 0;
1843: cp = bp->buf;
1844: }
1845: }
1.161 djm 1846: unset_nonblock(remin);
1.209 djm 1847: if (count != 0 && !wrerr &&
1.122 avsm 1848: atomicio(vwrite, ofd, bp->buf, count) != count) {
1.209 djm 1849: note_err("%s: %s", np, strerror(errno));
1850: wrerr = 1;
1.1 deraadt 1851: }
1.209 djm 1852: if (!wrerr && (!exists || S_ISREG(stb.st_mode)) &&
1853: ftruncate(ofd, size) != 0)
1854: note_err("%s: truncate: %s", np, strerror(errno));
1.1 deraadt 1855: if (pflag) {
1856: if (exists || omode != mode)
1.116 dtucker 1857: if (fchmod(ofd, omode)) {
1.209 djm 1858: note_err("%s: set mode: %s",
1.63 stevesk 1859: np, strerror(errno));
1.116 dtucker 1860: }
1.1 deraadt 1861: } else {
1862: if (!exists && omode != mode)
1.116 dtucker 1863: if (fchmod(ofd, omode & ~mask)) {
1.209 djm 1864: note_err("%s: set mode: %s",
1.63 stevesk 1865: np, strerror(errno));
1.116 dtucker 1866: }
1.1 deraadt 1867: }
1.209 djm 1868: if (close(ofd) == -1)
1.211 millert 1869: note_err("%s: close: %s", np, strerror(errno));
1.18 markus 1870: (void) response();
1.185 dtucker 1871: if (showprogress)
1872: stop_progress_meter();
1.209 djm 1873: if (setimes && !wrerr) {
1.1 deraadt 1874: setimes = 0;
1.205 deraadt 1875: if (utimes(np, tv) == -1) {
1.209 djm 1876: note_err("%s: set times: %s",
1.63 stevesk 1877: np, strerror(errno));
1.1 deraadt 1878: }
1879: }
1.209 djm 1880: /* If no error was noted then signal success for this file */
1881: if (note_err(NULL) == 0)
1.107 deraadt 1882: (void) atomicio(vwrite, remout, "", 1);
1.1 deraadt 1883: }
1.204 djm 1884: done:
1885: for (n = 0; n < npatterns; n++)
1886: free(patterns[n]);
1887: free(patterns);
1888: return;
1.1 deraadt 1889: screwup:
1.204 djm 1890: for (n = 0; n < npatterns; n++)
1891: free(patterns[n]);
1892: free(patterns);
1.1 deraadt 1893: run_err("protocol error: %s", why);
1894: exit(1);
1.219 djm 1895: }
1896:
1897: void
1898: throughlocal_sftp(struct sftp_conn *from, struct sftp_conn *to,
1.228 djm 1899: char *src, char *targ)
1.219 djm 1900: {
1901: char *target = NULL, *filename = NULL, *abs_dst = NULL;
1.228 djm 1902: char *abs_src = NULL, *tmp = NULL;
1.219 djm 1903: glob_t g;
1904: int i, r, targetisdir, err = 0;
1905:
1906: if ((filename = basename(src)) == NULL)
1907: fatal("basename %s: %s", src, strerror(errno));
1908:
1.228 djm 1909: if ((abs_src = prepare_remote_path(from, src)) == NULL ||
1910: (target = prepare_remote_path(to, targ)) == NULL)
1.226 djm 1911: cleanup_exit(255);
1.219 djm 1912: memset(&g, 0, sizeof(g));
1913:
1914: targetisdir = remote_is_dir(to, target);
1915: if (!targetisdir && targetshouldbedirectory) {
1.244 djm 1916: error("%s: destination is not a directory", targ);
1.219 djm 1917: err = -1;
1918: goto out;
1919: }
1920:
1921: debug3_f("copying remote %s to remote %s", abs_src, target);
1.249 djm 1922: if ((r = remote_glob(from, abs_src, GLOB_NOCHECK|GLOB_MARK,
1923: NULL, &g)) != 0) {
1.219 djm 1924: if (r == GLOB_NOSPACE)
1.244 djm 1925: error("%s: too many glob matches", src);
1.219 djm 1926: else
1.244 djm 1927: error("%s: %s", src, strerror(ENOENT));
1.219 djm 1928: err = -1;
1929: goto out;
1.249 djm 1930: }
1931:
1932: /* Did we actually get any matches back from the glob? */
1933: if (g.gl_matchc == 0 && g.gl_pathc == 1 && g.gl_pathv[0] != 0) {
1934: /*
1935: * If nothing matched but a path returned, then it's probably
1936: * a GLOB_NOCHECK result. Check whether the unglobbed path
1937: * exists so we can give a nice error message early.
1938: */
1939: if (do_stat(from, g.gl_pathv[0], 1) == NULL) {
1940: error("%s: %s", src, strerror(ENOENT));
1941: err = -1;
1942: goto out;
1943: }
1.219 djm 1944: }
1945:
1946: for (i = 0; g.gl_pathv[i] && !interrupted; i++) {
1947: tmp = xstrdup(g.gl_pathv[i]);
1948: if ((filename = basename(tmp)) == NULL) {
1949: error("basename %s: %s", tmp, strerror(errno));
1950: err = -1;
1951: goto out;
1952: }
1953:
1954: if (targetisdir)
1955: abs_dst = path_append(target, filename);
1956: else
1957: abs_dst = xstrdup(target);
1958:
1959: debug("Fetching %s to %s\n", g.gl_pathv[i], abs_dst);
1960: if (globpath_is_dir(g.gl_pathv[i]) && iamrecursive) {
1961: if (crossload_dir(from, to, g.gl_pathv[i], abs_dst,
1.221 djm 1962: NULL, pflag, SFTP_PROGRESS_ONLY, 1) == -1)
1.219 djm 1963: err = -1;
1964: } else {
1965: if (do_crossload(from, to, g.gl_pathv[i], abs_dst, NULL,
1966: pflag) == -1)
1967: err = -1;
1968: }
1969: free(abs_dst);
1970: abs_dst = NULL;
1971: free(tmp);
1972: tmp = NULL;
1973: }
1974:
1975: out:
1976: free(abs_src);
1977: free(abs_dst);
1978: free(target);
1979: free(tmp);
1980: globfree(&g);
1981: if (err == -1)
1.235 djm 1982: errs = 1;
1.1 deraadt 1983: }
1984:
1985: int
1.86 itojun 1986: response(void)
1.1 deraadt 1987: {
1.186 schwarze 1988: char ch, *cp, resp, rbuf[2048], visbuf[2048];
1.1 deraadt 1989:
1.30 deraadt 1990: if (atomicio(read, remin, &resp, sizeof(resp)) != sizeof(resp))
1.1 deraadt 1991: lostconn(0);
1992:
1993: cp = rbuf;
1.18 markus 1994: switch (resp) {
1995: case 0: /* ok */
1.1 deraadt 1996: return (0);
1997: default:
1998: *cp++ = resp;
1999: /* FALLTHROUGH */
1.18 markus 2000: case 1: /* error, followed by error msg */
2001: case 2: /* fatal error, "" */
1.1 deraadt 2002: do {
1.30 deraadt 2003: if (atomicio(read, remin, &ch, sizeof(ch)) != sizeof(ch))
1.1 deraadt 2004: lostconn(0);
2005: *cp++ = ch;
2006: } while (cp < &rbuf[sizeof(rbuf) - 1] && ch != '\n');
2007:
1.186 schwarze 2008: if (!iamremote) {
2009: cp[-1] = '\0';
2010: (void) snmprintf(visbuf, sizeof(visbuf),
2011: NULL, "%s\n", rbuf);
2012: (void) atomicio(vwrite, STDERR_FILENO,
2013: visbuf, strlen(visbuf));
2014: }
1.1 deraadt 2015: ++errs;
2016: if (resp == 1)
2017: return (-1);
2018: exit(1);
2019: }
2020: /* NOTREACHED */
2021: }
2022:
2023: void
1.86 itojun 2024: usage(void)
1.1 deraadt 2025: {
1.83 stevesk 2026: (void) fprintf(stderr,
1.239 djm 2027: "usage: scp [-346ABCOpqRrsTv] [-c cipher] [-D sftp_server_path] [-F ssh_config]\n"
1.251 jmc 2028: " [-i identity_file] [-J destination] [-l limit] [-o ssh_option]\n"
2029: " [-P port] [-S program] [-X sftp_option] source ... target\n");
1.1 deraadt 2030: exit(1);
2031: }
2032:
2033: void
1.18 markus 2034: run_err(const char *fmt,...)
1.1 deraadt 2035: {
2036: static FILE *fp;
2037: va_list ap;
2038:
2039: ++errs;
1.136 biorn 2040: if (fp != NULL || (remout != -1 && (fp = fdopen(remout, "w")))) {
2041: (void) fprintf(fp, "%c", 0x01);
2042: (void) fprintf(fp, "scp: ");
2043: va_start(ap, fmt);
2044: (void) vfprintf(fp, fmt, ap);
2045: va_end(ap);
2046: (void) fprintf(fp, "\n");
2047: (void) fflush(fp);
2048: }
1.18 markus 2049:
2050: if (!iamremote) {
1.73 markus 2051: va_start(ap, fmt);
1.186 schwarze 2052: vfmprintf(stderr, fmt, ap);
1.73 markus 2053: va_end(ap);
1.18 markus 2054: fprintf(stderr, "\n");
2055: }
1.209 djm 2056: }
2057:
2058: /*
2059: * Notes a sink error for sending at the end of a file transfer. Returns 0 if
2060: * no error has been noted or -1 otherwise. Use note_err(NULL) to flush
2061: * any active error at the end of the transfer.
2062: */
2063: int
2064: note_err(const char *fmt, ...)
2065: {
2066: static char *emsg;
2067: va_list ap;
2068:
2069: /* Replay any previously-noted error */
2070: if (fmt == NULL) {
2071: if (emsg == NULL)
2072: return 0;
2073: run_err("%s", emsg);
2074: free(emsg);
2075: emsg = NULL;
2076: return -1;
2077: }
2078:
2079: errs++;
2080: /* Prefer first-noted error */
2081: if (emsg != NULL)
2082: return -1;
2083:
2084: va_start(ap, fmt);
2085: vasnmprintf(&emsg, INT_MAX, NULL, fmt, ap);
2086: va_end(ap);
2087: return -1;
1.1 deraadt 2088: }
2089:
2090: void
1.104 djm 2091: verifydir(char *cp)
1.1 deraadt 2092: {
2093: struct stat stb;
2094:
2095: if (!stat(cp, &stb)) {
2096: if (S_ISDIR(stb.st_mode))
2097: return;
2098: errno = ENOTDIR;
2099: }
2100: run_err("%s: %s", cp, strerror(errno));
1.123 avsm 2101: killchild(0);
1.1 deraadt 2102: }
2103:
2104: int
1.104 djm 2105: okname(char *cp0)
1.1 deraadt 2106: {
2107: int c;
2108: char *cp;
2109:
2110: cp = cp0;
2111: do {
1.75 deraadt 2112: c = (int)*cp;
1.1 deraadt 2113: if (c & 0200)
2114: goto bad;
1.179 deraadt 2115: if (!isalpha(c) && !isdigit((unsigned char)c)) {
1.101 markus 2116: switch (c) {
2117: case '\'':
2118: case '"':
2119: case '`':
2120: case ' ':
2121: case '#':
2122: goto bad;
2123: default:
2124: break;
2125: }
2126: }
1.1 deraadt 2127: } while (*++cp);
2128: return (1);
2129:
1.186 schwarze 2130: bad: fmprintf(stderr, "%s: invalid user name\n", cp0);
1.1 deraadt 2131: return (0);
2132: }
2133:
2134: BUF *
1.104 djm 2135: allocbuf(BUF *bp, int fd, int blksize)
1.1 deraadt 2136: {
2137: size_t size;
2138: struct stat stb;
2139:
1.205 deraadt 2140: if (fstat(fd, &stb) == -1) {
1.1 deraadt 2141: run_err("fstat: %s", strerror(errno));
2142: return (0);
2143: }
1.187 deraadt 2144: size = ROUNDUP(stb.st_blksize, blksize);
1.95 markus 2145: if (size == 0)
1.18 markus 2146: size = blksize;
1.1 deraadt 2147: if (bp->cnt >= size)
2148: return (bp);
1.192 deraadt 2149: bp->buf = xrecallocarray(bp->buf, bp->cnt, size, 1);
1.1 deraadt 2150: bp->cnt = size;
2151: return (bp);
2152: }
2153:
2154: void
1.104 djm 2155: lostconn(int signo)
1.1 deraadt 2156: {
2157: if (!iamremote)
1.172 dtucker 2158: (void)write(STDERR_FILENO, "lost connection\n", 16);
1.74 markus 2159: if (signo)
2160: _exit(1);
2161: else
2162: exit(1);
1.225 djm 2163: }
2164:
2165: void
2166: cleanup_exit(int i)
2167: {
2168: if (remin > 0)
2169: close(remin);
2170: if (remout > 0)
2171: close(remout);
2172: if (remin2 > 0)
2173: close(remin2);
2174: if (remout2 > 0)
2175: close(remout2);
2176: if (do_cmd_pid > 0)
2177: waitpid(do_cmd_pid, NULL, 0);
2178: if (do_cmd_pid2 > 0)
2179: waitpid(do_cmd_pid2, NULL, 0);
2180: exit(i);
1.4 aaron 2181: }
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