Annotation of src/usr.bin/ssh/scp.c, Revision 1.229
1.229 ! djm 1: /* $OpenBSD: scp.c,v 1.228 2021/08/09 23:49:31 djm 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>
1.158 dtucker 99: #include <vis.h>
1.1 deraadt 100:
101: #include "xmalloc.h"
1.193 millert 102: #include "ssh.h"
1.51 markus 103: #include "atomicio.h"
1.50 markus 104: #include "pathnames.h"
1.51 markus 105: #include "log.h"
1.69 mouring 106: #include "misc.h"
1.97 fgsch 107: #include "progressmeter.h"
1.186 schwarze 108: #include "utf8.h"
1.1 deraadt 109:
1.216 djm 110: #include "sftp-common.h"
111: #include "sftp-client.h"
112:
1.161 djm 113: #define COPY_BUFLEN 16384
114:
1.216 djm 115: int do_cmd(char *program, char *host, char *remuser, int port, char *cmd,
1.219 djm 116: int *fdin, int *fdout, pid_t *pidp);
1.216 djm 117: int do_cmd2(char *host, char *remuser, int port, char *cmd,
118: int fdin, int fdout);
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:
1.216 djm 154: /* Needed for sftp */
155: volatile sig_atomic_t interrupted = 0;
156:
157: int remote_glob(struct sftp_conn *, const char *, int,
158: int (*)(const char *, int), glob_t *); /* proto for sftp-glob.c */
159:
1.105 djm 160: static void
161: killchild(int signo)
162: {
1.119 dtucker 163: if (do_cmd_pid > 1) {
1.123 avsm 164: kill(do_cmd_pid, signo ? signo : SIGTERM);
1.119 dtucker 165: waitpid(do_cmd_pid, NULL, 0);
166: }
1.219 djm 167: if (do_cmd_pid2 > 1) {
168: kill(do_cmd_pid2, signo ? signo : SIGTERM);
169: waitpid(do_cmd_pid2, NULL, 0);
170: }
1.105 djm 171:
1.123 avsm 172: if (signo)
173: _exit(1);
174: exit(1);
1.105 djm 175: }
1.92 markus 176:
1.166 millert 177: static void
1.219 djm 178: suspone(int pid, int signo)
1.166 millert 179: {
180: int status;
181:
1.219 djm 182: if (pid > 1) {
183: kill(pid, signo);
184: while (waitpid(pid, &status, WUNTRACED) == -1 &&
1.166 millert 185: errno == EINTR)
186: ;
187: }
188: }
189:
1.219 djm 190: static void
191: suspchild(int signo)
192: {
193: suspone(do_cmd_pid, signo);
194: suspone(do_cmd_pid2, signo);
195: kill(getpid(), SIGSTOP);
196: }
197:
1.129 djm 198: static int
199: do_local_cmd(arglist *a)
200: {
201: u_int i;
202: int status;
203: pid_t pid;
204:
205: if (a->num == 0)
206: fatal("do_local_cmd: no arguments");
207:
208: if (verbose_mode) {
209: fprintf(stderr, "Executing:");
210: for (i = 0; i < a->num; i++)
1.186 schwarze 211: fmprintf(stderr, " %s", a->list[i]);
1.129 djm 212: fprintf(stderr, "\n");
213: }
214: if ((pid = fork()) == -1)
215: fatal("do_local_cmd: fork: %s", strerror(errno));
216:
217: if (pid == 0) {
218: execvp(a->list[0], a->list);
219: perror(a->list[0]);
220: exit(1);
221: }
222:
223: do_cmd_pid = pid;
1.207 dtucker 224: ssh_signal(SIGTERM, killchild);
225: ssh_signal(SIGINT, killchild);
226: ssh_signal(SIGHUP, killchild);
1.129 djm 227:
228: while (waitpid(pid, &status, 0) == -1)
229: if (errno != EINTR)
230: fatal("do_local_cmd: waitpid: %s", strerror(errno));
231:
232: do_cmd_pid = -1;
233:
234: if (!WIFEXITED(status) || WEXITSTATUS(status) != 0)
235: return (-1);
236:
237: return (0);
238: }
239:
1.20 markus 240: /*
241: * This function executes the given command as the specified user on the
242: * given host. This returns < 0 if execution fails, and >= 0 otherwise. This
243: * assigns the input and output file descriptors on success.
244: */
1.1 deraadt 245:
1.27 markus 246: int
1.216 djm 247: do_cmd(char *program, char *host, char *remuser, int port, char *cmd,
1.222 dtucker 248: int *fdin, int *fdout, pid_t *pid)
1.1 deraadt 249: {
1.18 markus 250: int pin[2], pout[2], reserved[2];
251:
252: if (verbose_mode)
1.186 schwarze 253: fmprintf(stderr,
1.78 deraadt 254: "Executing: program %s host %s, user %s, command %s\n",
1.216 djm 255: program, host,
1.78 deraadt 256: remuser ? remuser : "(unspecified)", cmd);
1.18 markus 257:
1.193 millert 258: if (port == -1)
259: port = sshport;
260:
1.20 markus 261: /*
262: * Reserve two descriptors so that the real pipes won't get
263: * descriptors 0 and 1 because that will screw up dup2 below.
264: */
1.205 deraadt 265: if (pipe(reserved) == -1)
1.142 markus 266: fatal("pipe: %s", strerror(errno));
1.18 markus 267:
268: /* Create a socket pair for communicating with ssh. */
1.205 deraadt 269: if (pipe(pin) == -1)
1.18 markus 270: fatal("pipe: %s", strerror(errno));
1.205 deraadt 271: if (pipe(pout) == -1)
1.18 markus 272: fatal("pipe: %s", strerror(errno));
273:
274: /* Free the reserved descriptors. */
275: close(reserved[0]);
276: close(reserved[1]);
1.166 millert 277:
1.207 dtucker 278: ssh_signal(SIGTSTP, suspchild);
279: ssh_signal(SIGTTIN, suspchild);
280: ssh_signal(SIGTTOU, suspchild);
1.18 markus 281:
1.106 nino 282: /* Fork a child to execute the command on the remote host using ssh. */
1.219 djm 283: *pid = fork();
284: if (*pid == 0) {
1.18 markus 285: /* Child. */
286: close(pin[1]);
287: close(pout[0]);
288: dup2(pin[0], 0);
289: dup2(pout[1], 1);
290: close(pin[0]);
291: close(pout[1]);
292:
1.216 djm 293: replacearg(&args, 0, "%s", program);
1.193 millert 294: if (port != -1) {
295: addargs(&args, "-p");
296: addargs(&args, "%d", port);
297: }
1.165 guenther 298: if (remuser != NULL) {
299: addargs(&args, "-l");
300: addargs(&args, "%s", remuser);
301: }
302: addargs(&args, "--");
1.70 mouring 303: addargs(&args, "%s", host);
304: addargs(&args, "%s", cmd);
1.18 markus 305:
1.216 djm 306: execvp(program, args.list);
307: perror(program);
1.18 markus 308: exit(1);
1.219 djm 309: } else if (*pid == -1) {
1.92 markus 310: fatal("fork: %s", strerror(errno));
1.18 markus 311: }
312: /* Parent. Close the other side, and return the local side. */
313: close(pin[0]);
314: *fdout = pin[1];
315: close(pout[1]);
316: *fdin = pout[0];
1.207 dtucker 317: ssh_signal(SIGTERM, killchild);
318: ssh_signal(SIGINT, killchild);
319: ssh_signal(SIGHUP, killchild);
1.18 markus 320: return 0;
1.1 deraadt 321: }
322:
1.169 markus 323: /*
1.196 djm 324: * This function executes a command similar to do_cmd(), but expects the
1.169 markus 325: * input and output descriptors to be setup by a previous call to do_cmd().
326: * This way the input and output of two commands can be connected.
327: */
328: int
1.219 djm 329: do_cmd2(char *host, char *remuser, int port, char *cmd,
330: int fdin, int fdout)
1.169 markus 331: {
1.219 djm 332: int status;
1.169 markus 333: pid_t pid;
334:
335: if (verbose_mode)
1.186 schwarze 336: fmprintf(stderr,
1.169 markus 337: "Executing: 2nd program %s host %s, user %s, command %s\n",
338: ssh_program, host,
339: remuser ? remuser : "(unspecified)", cmd);
340:
1.193 millert 341: if (port == -1)
342: port = sshport;
343:
1.169 markus 344: /* Fork a child to execute the command on the remote host using ssh. */
345: pid = fork();
346: if (pid == 0) {
347: dup2(fdin, 0);
348: dup2(fdout, 1);
349:
350: replacearg(&args, 0, "%s", ssh_program);
1.193 millert 351: if (port != -1) {
352: addargs(&args, "-p");
353: addargs(&args, "%d", port);
354: }
1.169 markus 355: if (remuser != NULL) {
356: addargs(&args, "-l");
357: addargs(&args, "%s", remuser);
358: }
1.208 markus 359: addargs(&args, "-oBatchMode=yes");
1.169 markus 360: addargs(&args, "--");
361: addargs(&args, "%s", host);
362: addargs(&args, "%s", cmd);
363:
364: execvp(ssh_program, args.list);
365: perror(ssh_program);
366: exit(1);
367: } else if (pid == -1) {
368: fatal("fork: %s", strerror(errno));
369: }
370: while (waitpid(pid, &status, 0) == -1)
371: if (errno != EINTR)
372: fatal("do_cmd2: waitpid: %s", strerror(errno));
373: return 0;
374: }
375:
1.1 deraadt 376: typedef struct {
1.124 djm 377: size_t cnt;
1.1 deraadt 378: char *buf;
379: } BUF;
380:
1.18 markus 381: BUF *allocbuf(BUF *, int, int);
382: void lostconn(int);
383: int okname(char *);
1.211 millert 384: void run_err(const char *,...)
385: __attribute__((__format__ (printf, 1, 2)))
386: __attribute__((__nonnull__ (1)));
387: int note_err(const char *,...)
388: __attribute__((__format__ (printf, 1, 2)));
1.18 markus 389: void verifydir(char *);
1.1 deraadt 390:
391: struct passwd *pwd;
1.18 markus 392: uid_t userid;
1.219 djm 393: int errs, remin, remout, remin2, remout2;
1.202 djm 394: int Tflag, pflag, iamremote, iamrecursive, targetshouldbedirectory;
1.1 deraadt 395:
396: #define CMDNEEDS 64
397: char cmd[CMDNEEDS]; /* must hold "rcp -r -p -d\0" */
398:
1.216 djm 399: enum scp_mode_e {
400: MODE_SCP,
401: MODE_SFTP
402: };
403:
1.18 markus 404: int response(void);
405: void rsource(char *, struct stat *);
1.202 djm 406: void sink(int, char *[], const char *);
1.18 markus 407: void source(int, char *[]);
1.216 djm 408: void tolocal(int, char *[], enum scp_mode_e, char *sftp_direct);
409: void toremote(int, char *[], enum scp_mode_e, char *sftp_direct);
1.18 markus 410: void usage(void);
1.1 deraadt 411:
1.228 djm 412: void source_sftp(int, char *, char *, struct sftp_conn *);
1.216 djm 413: void sink_sftp(int, char *, const char *, struct sftp_conn *);
1.219 djm 414: void throughlocal_sftp(struct sftp_conn *, struct sftp_conn *,
1.228 djm 415: char *, char *);
1.216 djm 416:
1.1 deraadt 417: int
1.104 djm 418: main(int argc, char **argv)
1.1 deraadt 419: {
1.145 djm 420: int ch, fflag, tflag, status, n;
1.216 djm 421: char **newargv, *argv0;
1.167 djm 422: const char *errstr;
1.1 deraadt 423: extern char *optarg;
424: extern int optind;
1.224 djm 425: /* For now, keep SCP as default */
426: enum scp_mode_e mode = MODE_SCP;
1.216 djm 427: char *sftp_direct = NULL;
1.126 djm 428:
429: /* Ensure that fds 0, 1 and 2 are open or directed to /dev/null */
430: sanitise_stdfd();
1.145 djm 431:
1.186 schwarze 432: setlocale(LC_CTYPE, "");
433:
1.145 djm 434: /* Copy argv, because we modify it */
1.216 djm 435: argv0 = argv[0];
1.187 deraadt 436: newargv = xcalloc(MAXIMUM(argc + 1, 1), sizeof(*newargv));
1.145 djm 437: for (n = 0; n < argc; n++)
438: newargv[n] = xstrdup(argv[n]);
439: argv = newargv;
1.1 deraadt 440:
1.218 djm 441: log_init(argv0, log_level, SYSLOG_FACILITY_USER, 1);
442:
1.129 djm 443: memset(&args, '\0', sizeof(args));
1.168 djm 444: memset(&remote_remote_args, '\0', sizeof(remote_remote_args));
445: args.list = remote_remote_args.list = NULL;
1.129 djm 446: addargs(&args, "%s", ssh_program);
1.70 mouring 447: addargs(&args, "-x");
1.168 djm 448: addargs(&args, "-oPermitLocalCommand=no");
449: addargs(&args, "-oClearAllForwardings=yes");
1.195 djm 450: addargs(&args, "-oRemoteCommand=none");
451: addargs(&args, "-oRequestTTY=no");
1.41 markus 452:
1.202 djm 453: fflag = Tflag = tflag = 0;
454: while ((ch = getopt(argc, argv,
1.229 ! djm 455: "12346ABCTdfpqRrtvD:F:J:M:P:S:c:i:l:o:")) != -1) {
1.18 markus 456: switch (ch) {
457: /* User-visible flags. */
1.100 markus 458: case '1':
1.190 djm 459: fatal("SSH protocol v.1 is no longer supported");
460: break;
1.100 markus 461: case '2':
1.190 djm 462: /* Ignored */
463: break;
1.212 djm 464: case 'A':
1.23 markus 465: case '4':
1.41 markus 466: case '6':
467: case 'C':
1.70 mouring 468: addargs(&args, "-%c", ch);
1.168 djm 469: addargs(&remote_remote_args, "-%c", ch);
1.41 markus 470: break;
1.216 djm 471: case 'D':
472: sftp_direct = optarg;
473: break;
1.169 markus 474: case '3':
475: throughlocal = 1;
476: break;
1.229 ! djm 477: case 'R':
! 478: throughlocal = 0;
! 479: break;
1.41 markus 480: case 'o':
481: case 'c':
482: case 'i':
1.83 stevesk 483: case 'F':
1.199 tb 484: case 'J':
1.168 djm 485: addargs(&remote_remote_args, "-%c", ch);
486: addargs(&remote_remote_args, "%s", optarg);
1.165 guenther 487: addargs(&args, "-%c", ch);
488: addargs(&args, "%s", optarg);
1.23 markus 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;
1.224 djm 499: case 'M':
500: if (strcmp(optarg, "sftp") == 0)
501: mode = MODE_SFTP;
502: else if (strcmp(optarg, "scp") == 0)
503: mode = MODE_SCP;
504: else
505: usage();
506: break;
1.99 markus 507: case 'l':
1.167 djm 508: limit_kbps = strtonum(optarg, 1, 100 * 1024 * 1024,
509: &errstr);
510: if (errstr != NULL)
1.99 markus 511: usage();
1.167 djm 512: limit_kbps *= 1024; /* kbps */
513: bandwidth_limit_init(&bwlimit, limit_kbps, COPY_BUFLEN);
1.99 markus 514: break;
1.1 deraadt 515: case 'p':
516: pflag = 1;
517: break;
518: case 'r':
519: iamrecursive = 1;
520: break;
1.34 deraadt 521: case 'S':
1.41 markus 522: ssh_program = xstrdup(optarg);
523: break;
524: case 'v':
1.72 markus 525: addargs(&args, "-v");
1.168 djm 526: addargs(&remote_remote_args, "-v");
1.216 djm 527: if (verbose_mode == 0)
528: log_level = SYSLOG_LEVEL_DEBUG1;
529: else if (log_level < SYSLOG_LEVEL_DEBUG3)
530: log_level++;
1.41 markus 531: verbose_mode = 1;
532: break;
533: case 'q':
1.111 dtucker 534: addargs(&args, "-q");
1.168 djm 535: addargs(&remote_remote_args, "-q");
1.41 markus 536: showprogress = 0;
1.34 deraadt 537: break;
538:
1.18 markus 539: /* Server options. */
1.1 deraadt 540: case 'd':
541: targetshouldbedirectory = 1;
542: break;
1.18 markus 543: case 'f': /* "from" */
1.1 deraadt 544: iamremote = 1;
545: fflag = 1;
546: break;
1.18 markus 547: case 't': /* "to" */
1.1 deraadt 548: iamremote = 1;
549: tflag = 1;
550: break;
1.202 djm 551: case 'T':
552: Tflag = 1;
553: break;
1.1 deraadt 554: default:
555: usage();
556: }
1.202 djm 557: }
1.1 deraadt 558: argc -= optind;
559: argv += optind;
560:
1.216 djm 561: log_init(argv0, log_level, SYSLOG_FACILITY_USER, 1);
562:
1.212 djm 563: /* Do this last because we want the user to be able to override it */
564: addargs(&args, "-oForwardAgent=no");
565:
1.218 djm 566: if (iamremote)
567: mode = MODE_SCP;
1.216 djm 568:
1.1 deraadt 569: if ((pwd = getpwuid(userid = getuid())) == NULL)
1.108 deraadt 570: fatal("unknown user %u", (u_int) userid);
1.1 deraadt 571:
1.156 djm 572: if (!isatty(STDOUT_FILENO))
1.7 deraadt 573: showprogress = 0;
1.184 deraadt 574:
575: if (pflag) {
576: /* Cannot pledge: -p allows setuid/setgid files... */
577: } else {
578: if (pledge("stdio rpath wpath cpath fattr tty proc exec",
579: NULL) == -1) {
580: perror("pledge");
581: exit(1);
582: }
583: }
1.7 deraadt 584:
1.1 deraadt 585: remin = STDIN_FILENO;
586: remout = STDOUT_FILENO;
587:
1.52 stevesk 588: if (fflag) {
1.18 markus 589: /* Follow "protocol", send data. */
590: (void) response();
1.1 deraadt 591: source(argc, argv);
592: exit(errs != 0);
593: }
1.18 markus 594: if (tflag) {
595: /* Receive data. */
1.202 djm 596: sink(argc, argv, NULL);
1.1 deraadt 597: exit(errs != 0);
598: }
599: if (argc < 2)
600: usage();
601: if (argc > 2)
602: targetshouldbedirectory = 1;
603:
604: remin = remout = -1;
1.92 markus 605: do_cmd_pid = -1;
1.1 deraadt 606: /* Command to be executed on remote system using "ssh". */
1.55 deraadt 607: (void) snprintf(cmd, sizeof cmd, "scp%s%s%s%s",
608: verbose_mode ? " -v" : "",
1.35 deraadt 609: iamrecursive ? " -r" : "", pflag ? " -p" : "",
610: targetshouldbedirectory ? " -d" : "");
1.1 deraadt 611:
1.207 dtucker 612: (void) ssh_signal(SIGPIPE, lostconn);
1.1 deraadt 613:
1.193 millert 614: if (colon(argv[argc - 1])) /* Dest is remote host. */
1.216 djm 615: toremote(argc, argv, mode, sftp_direct);
1.1 deraadt 616: else {
617: if (targetshouldbedirectory)
618: verifydir(argv[argc - 1]);
1.216 djm 619: tolocal(argc, argv, mode, sftp_direct); /* Dest is local host. */
1.92 markus 620: }
621: /*
622: * Finally check the exit status of the ssh process, if one was forked
1.164 stevesk 623: * and no error has occurred yet
1.92 markus 624: */
625: if (do_cmd_pid != -1 && errs == 0) {
626: if (remin != -1)
627: (void) close(remin);
628: if (remout != -1)
629: (void) close(remout);
630: if (waitpid(do_cmd_pid, &status, 0) == -1)
631: errs = 1;
632: else {
633: if (!WIFEXITED(status) || WEXITSTATUS(status) != 0)
634: errs = 1;
635: }
1.1 deraadt 636: }
637: exit(errs != 0);
638: }
639:
1.167 djm 640: /* Callback from atomicio6 to update progress meter and limit bandwidth */
641: static int
642: scpio(void *_cnt, size_t s)
1.161 djm 643: {
1.167 djm 644: off_t *cnt = (off_t *)_cnt;
645:
646: *cnt += s;
1.201 dtucker 647: refresh_progress_meter(0);
1.167 djm 648: if (limit_kbps > 0)
649: bandwidth_limit(&bwlimit, s);
650: return 0;
1.161 djm 651: }
652:
1.176 guenther 653: static int
654: do_times(int fd, int verb, const struct stat *sb)
655: {
656: /* strlen(2^64) == 20; strlen(10^6) == 7 */
657: char buf[(20 + 7 + 2) * 2 + 2];
658:
659: (void)snprintf(buf, sizeof(buf), "T%llu 0 %llu 0\n",
660: (unsigned long long) (sb->st_mtime < 0 ? 0 : sb->st_mtime),
661: (unsigned long long) (sb->st_atime < 0 ? 0 : sb->st_atime));
662: if (verb) {
663: fprintf(stderr, "File mtime %lld atime %lld\n",
664: (long long)sb->st_mtime, (long long)sb->st_atime);
665: fprintf(stderr, "Sending file timestamps: %s", buf);
666: }
667: (void) atomicio(vwrite, fd, buf, strlen(buf));
668: return (response());
669: }
670:
1.194 millert 671: static int
672: parse_scp_uri(const char *uri, char **userp, char **hostp, int *portp,
1.214 djm 673: char **pathp)
1.194 millert 674: {
675: int r;
676:
677: r = parse_uri("scp", uri, userp, hostp, portp, pathp);
678: if (r == 0 && *pathp == NULL)
679: *pathp = xstrdup(".");
680: return r;
681: }
682:
1.204 djm 683: /* Appends a string to an array; returns 0 on success, -1 on alloc failure */
684: static int
685: append(char *cp, char ***ap, size_t *np)
686: {
687: char **tmp;
688:
689: if ((tmp = reallocarray(*ap, *np + 1, sizeof(*tmp))) == NULL)
690: return -1;
691: tmp[(*np)] = cp;
692: (*np)++;
693: *ap = tmp;
694: return 0;
695: }
696:
697: /*
698: * Finds the start and end of the first brace pair in the pattern.
699: * returns 0 on success or -1 for invalid patterns.
700: */
701: static int
702: find_brace(const char *pattern, int *startp, int *endp)
703: {
704: int i;
705: int in_bracket, brace_level;
706:
707: *startp = *endp = -1;
708: in_bracket = brace_level = 0;
709: for (i = 0; i < INT_MAX && *endp < 0 && pattern[i] != '\0'; i++) {
710: switch (pattern[i]) {
711: case '\\':
712: /* skip next character */
713: if (pattern[i + 1] != '\0')
714: i++;
715: break;
716: case '[':
717: in_bracket = 1;
718: break;
719: case ']':
720: in_bracket = 0;
721: break;
722: case '{':
723: if (in_bracket)
724: break;
725: if (pattern[i + 1] == '}') {
726: /* Protect a single {}, for find(1), like csh */
727: i++; /* skip */
728: break;
729: }
730: if (*startp == -1)
731: *startp = i;
732: brace_level++;
733: break;
734: case '}':
735: if (in_bracket)
736: break;
737: if (*startp < 0) {
738: /* Unbalanced brace */
739: return -1;
740: }
741: if (--brace_level <= 0)
742: *endp = i;
743: break;
744: }
745: }
746: /* unbalanced brackets/braces */
747: if (*endp < 0 && (*startp >= 0 || in_bracket))
748: return -1;
749: return 0;
750: }
751:
752: /*
753: * Assembles and records a successfully-expanded pattern, returns -1 on
754: * alloc failure.
755: */
756: static int
757: emit_expansion(const char *pattern, int brace_start, int brace_end,
758: int sel_start, int sel_end, char ***patternsp, size_t *npatternsp)
759: {
760: char *cp;
761: int o = 0, tail_len = strlen(pattern + brace_end + 1);
762:
763: if ((cp = malloc(brace_start + (sel_end - sel_start) +
764: tail_len + 1)) == NULL)
765: return -1;
766:
767: /* Pattern before initial brace */
768: if (brace_start > 0) {
769: memcpy(cp, pattern, brace_start);
770: o = brace_start;
771: }
772: /* Current braced selection */
773: if (sel_end - sel_start > 0) {
774: memcpy(cp + o, pattern + sel_start,
775: sel_end - sel_start);
776: o += sel_end - sel_start;
777: }
778: /* Remainder of pattern after closing brace */
779: if (tail_len > 0) {
780: memcpy(cp + o, pattern + brace_end + 1, tail_len);
781: o += tail_len;
782: }
783: cp[o] = '\0';
784: if (append(cp, patternsp, npatternsp) != 0) {
785: free(cp);
786: return -1;
787: }
788: return 0;
789: }
790:
791: /*
792: * Expand the first encountered brace in pattern, appending the expanded
793: * patterns it yielded to the *patternsp array.
794: *
795: * Returns 0 on success or -1 on allocation failure.
796: *
797: * Signals whether expansion was performed via *expanded and whether
798: * pattern was invalid via *invalid.
799: */
800: static int
801: brace_expand_one(const char *pattern, char ***patternsp, size_t *npatternsp,
802: int *expanded, int *invalid)
803: {
804: int i;
805: int in_bracket, brace_start, brace_end, brace_level;
806: int sel_start, sel_end;
807:
808: *invalid = *expanded = 0;
809:
810: if (find_brace(pattern, &brace_start, &brace_end) != 0) {
811: *invalid = 1;
812: return 0;
813: } else if (brace_start == -1)
814: return 0;
815:
816: in_bracket = brace_level = 0;
817: for (i = sel_start = brace_start + 1; i < brace_end; i++) {
818: switch (pattern[i]) {
819: case '{':
820: if (in_bracket)
821: break;
822: brace_level++;
823: break;
824: case '}':
825: if (in_bracket)
826: break;
827: brace_level--;
828: break;
829: case '[':
830: in_bracket = 1;
831: break;
832: case ']':
833: in_bracket = 0;
834: break;
835: case '\\':
836: if (i < brace_end - 1)
837: i++; /* skip */
838: break;
839: }
840: if (pattern[i] == ',' || i == brace_end - 1) {
841: if (in_bracket || brace_level > 0)
842: continue;
843: /* End of a selection, emit an expanded pattern */
844:
845: /* Adjust end index for last selection */
846: sel_end = (i == brace_end - 1) ? brace_end : i;
847: if (emit_expansion(pattern, brace_start, brace_end,
848: sel_start, sel_end, patternsp, npatternsp) != 0)
849: return -1;
850: /* move on to the next selection */
851: sel_start = i + 1;
852: continue;
853: }
854: }
855: if (in_bracket || brace_level > 0) {
856: *invalid = 1;
857: return 0;
858: }
859: /* success */
860: *expanded = 1;
861: return 0;
862: }
863:
864: /* Expand braces from pattern. Returns 0 on success, -1 on failure */
865: static int
866: brace_expand(const char *pattern, char ***patternsp, size_t *npatternsp)
867: {
868: char *cp, *cp2, **active = NULL, **done = NULL;
869: size_t i, nactive = 0, ndone = 0;
870: int ret = -1, invalid = 0, expanded = 0;
871:
872: *patternsp = NULL;
873: *npatternsp = 0;
874:
875: /* Start the worklist with the original pattern */
876: if ((cp = strdup(pattern)) == NULL)
877: return -1;
878: if (append(cp, &active, &nactive) != 0) {
879: free(cp);
880: return -1;
881: }
882: while (nactive > 0) {
883: cp = active[nactive - 1];
884: nactive--;
885: if (brace_expand_one(cp, &active, &nactive,
886: &expanded, &invalid) == -1) {
887: free(cp);
888: goto fail;
889: }
890: if (invalid)
1.213 djm 891: fatal_f("invalid brace pattern \"%s\"", cp);
1.204 djm 892: if (expanded) {
893: /*
894: * Current entry expanded to new entries on the
895: * active list; discard the progenitor pattern.
896: */
897: free(cp);
898: continue;
899: }
900: /*
901: * Pattern did not expand; append the finename component to
902: * the completed list
903: */
904: if ((cp2 = strrchr(cp, '/')) != NULL)
905: *cp2++ = '\0';
906: else
907: cp2 = cp;
908: if (append(xstrdup(cp2), &done, &ndone) != 0) {
909: free(cp);
910: goto fail;
911: }
912: free(cp);
913: }
914: /* success */
915: *patternsp = done;
916: *npatternsp = ndone;
917: done = NULL;
918: ndone = 0;
919: ret = 0;
920: fail:
921: for (i = 0; i < nactive; i++)
922: free(active[i]);
923: free(active);
924: for (i = 0; i < ndone; i++)
925: free(done[i]);
926: free(done);
927: return ret;
928: }
929:
1.216 djm 930: static struct sftp_conn *
1.219 djm 931: do_sftp_connect(char *host, char *user, int port, char *sftp_direct,
932: int *reminp, int *remoutp, int *pidp)
1.216 djm 933: {
934: if (sftp_direct == NULL) {
935: addargs(&args, "-s");
936: if (do_cmd(ssh_program, host, user, port, "sftp",
1.219 djm 937: reminp, remoutp, pidp) < 0)
1.216 djm 938: return NULL;
939:
940: } else {
941: args.list = NULL;
942: addargs(&args, "sftp-server");
943: if (do_cmd(sftp_direct, host, NULL, -1, "sftp",
1.219 djm 944: reminp, remoutp, pidp) < 0)
1.216 djm 945: return NULL;
946: }
1.219 djm 947: return do_init(*reminp, *remoutp, 32768, 64, limit_kbps);
1.216 djm 948: }
949:
1.1 deraadt 950: void
1.216 djm 951: toremote(int argc, char **argv, enum scp_mode_e mode, char *sftp_direct)
1.1 deraadt 952: {
1.193 millert 953: char *suser = NULL, *host = NULL, *src = NULL;
954: char *bp, *tuser, *thost, *targ;
955: int sport = -1, tport = -1;
1.219 djm 956: struct sftp_conn *conn = NULL, *conn2 = NULL;
1.129 djm 957: arglist alist;
1.219 djm 958: int i, r, status;
1.168 djm 959: u_int j;
1.129 djm 960:
961: memset(&alist, '\0', sizeof(alist));
962: alist.list = NULL;
1.1 deraadt 963:
1.193 millert 964: /* Parse target */
1.194 millert 965: r = parse_scp_uri(argv[argc - 1], &tuser, &thost, &tport, &targ);
966: if (r == -1) {
967: fmprintf(stderr, "%s: invalid uri\n", argv[argc - 1]);
968: ++errs;
969: goto out;
970: }
1.193 millert 971: if (r != 0) {
972: if (parse_user_host_path(argv[argc - 1], &tuser, &thost,
1.194 millert 973: &targ) == -1) {
974: fmprintf(stderr, "%s: invalid target\n", argv[argc - 1]);
975: ++errs;
1.193 millert 976: goto out;
1.194 millert 977: }
1.129 djm 978: }
979:
1.193 millert 980: /* Parse source files */
1.1 deraadt 981: for (i = 0; i < argc - 1; i++) {
1.193 millert 982: free(suser);
983: free(host);
984: free(src);
1.194 millert 985: r = parse_scp_uri(argv[i], &suser, &host, &sport, &src);
986: if (r == -1) {
987: fmprintf(stderr, "%s: invalid uri\n", argv[i]);
988: ++errs;
989: continue;
990: }
991: if (r != 0) {
1.193 millert 992: parse_user_host_path(argv[i], &suser, &host, &src);
1.194 millert 993: }
1.193 millert 994: if (suser != NULL && !okname(suser)) {
995: ++errs;
996: continue;
997: }
998: if (host && throughlocal) { /* extended remote to remote */
1.219 djm 999: if (mode == MODE_SFTP) {
1000: if (remin == -1) {
1001: /* Connect to dest now */
1002: conn = do_sftp_connect(thost, tuser,
1003: tport, sftp_direct,
1004: &remin, &remout, &do_cmd_pid);
1005: if (conn == NULL) {
1006: fatal("Unable to open "
1007: "destination connection");
1008: }
1009: debug3_f("origin in %d out %d pid %ld",
1010: remin, remout, (long)do_cmd_pid);
1011: }
1012: /*
1013: * XXX remember suser/host/sport and only
1014: * reconnect if they change between arguments.
1015: * would save reconnections for cases like
1016: * scp -3 hosta:/foo hosta:/bar hostb:
1017: */
1018: /* Connect to origin now */
1019: conn2 = do_sftp_connect(host, suser,
1020: sport, sftp_direct,
1021: &remin2, &remout2, &do_cmd_pid2);
1022: if (conn2 == NULL) {
1023: fatal("Unable to open "
1024: "source connection");
1025: }
1026: debug3_f("destination in %d out %d pid %ld",
1027: remin2, remout2, (long)do_cmd_pid2);
1.228 djm 1028: throughlocal_sftp(conn2, conn, src, targ);
1.219 djm 1029: (void) close(remin2);
1030: (void) close(remout2);
1031: remin2 = remout2 = -1;
1032: if (waitpid(do_cmd_pid2, &status, 0) == -1)
1033: ++errs;
1034: else if (!WIFEXITED(status) ||
1035: WEXITSTATUS(status) != 0)
1036: ++errs;
1037: do_cmd_pid2 = -1;
1038: continue;
1039: } else {
1040: xasprintf(&bp, "%s -f %s%s", cmd,
1041: *src == '-' ? "-- " : "", src);
1042: if (do_cmd(ssh_program, host, suser, sport,
1043: bp, &remin, &remout, &do_cmd_pid) < 0)
1044: exit(1);
1045: free(bp);
1046: xasprintf(&bp, "%s -t %s%s", cmd,
1047: *targ == '-' ? "-- " : "", targ);
1048: if (do_cmd2(thost, tuser, tport, bp,
1049: remin, remout) < 0)
1050: exit(1);
1051: free(bp);
1052: (void) close(remin);
1053: (void) close(remout);
1054: remin = remout = -1;
1055: }
1.193 millert 1056: } else if (host) { /* standard remote to remote */
1.215 djm 1057: /*
1058: * Second remote user is passed to first remote side
1059: * via scp command-line. Ensure it contains no obvious
1060: * shell characters.
1061: */
1062: if (tuser != NULL && !okname(tuser)) {
1063: ++errs;
1064: continue;
1065: }
1.193 millert 1066: if (tport != -1 && tport != SSH_DEFAULT_PORT) {
1067: /* This would require the remote support URIs */
1068: fatal("target port not supported with two "
1069: "remote hosts without the -3 option");
1070: }
1071:
1.129 djm 1072: freeargs(&alist);
1073: addargs(&alist, "%s", ssh_program);
1074: addargs(&alist, "-x");
1.168 djm 1075: addargs(&alist, "-oClearAllForwardings=yes");
1.129 djm 1076: addargs(&alist, "-n");
1.168 djm 1077: for (j = 0; j < remote_remote_args.num; j++) {
1078: addargs(&alist, "%s",
1079: remote_remote_args.list[j]);
1080: }
1.193 millert 1081:
1082: if (sport != -1) {
1083: addargs(&alist, "-p");
1084: addargs(&alist, "%d", sport);
1085: }
1086: if (suser) {
1.129 djm 1087: addargs(&alist, "-l");
1088: addargs(&alist, "%s", suser);
1.23 markus 1089: }
1.165 guenther 1090: addargs(&alist, "--");
1.129 djm 1091: addargs(&alist, "%s", host);
1092: addargs(&alist, "%s", cmd);
1093: addargs(&alist, "%s", src);
1094: addargs(&alist, "%s%s%s:%s",
1095: tuser ? tuser : "", tuser ? "@" : "",
1096: thost, targ);
1097: if (do_local_cmd(&alist) != 0)
1.109 markus 1098: errs = 1;
1.18 markus 1099: } else { /* local to remote */
1.216 djm 1100: if (mode == MODE_SFTP) {
1101: if (remin == -1) {
1102: /* Connect to remote now */
1103: conn = do_sftp_connect(thost, tuser,
1.219 djm 1104: tport, sftp_direct,
1105: &remin, &remout, &do_cmd_pid);
1.216 djm 1106: if (conn == NULL) {
1107: fatal("Unable to open sftp "
1108: "connection");
1109: }
1110: }
1111:
1112: /* The protocol */
1.228 djm 1113: source_sftp(1, argv[i], targ, conn);
1.216 djm 1114: continue;
1115: }
1116: /* SCP */
1.1 deraadt 1117: if (remin == -1) {
1.171 djm 1118: xasprintf(&bp, "%s -t %s%s", cmd,
1119: *targ == '-' ? "-- " : "", targ);
1.216 djm 1120: if (do_cmd(ssh_program, thost, tuser, tport, bp,
1.219 djm 1121: &remin, &remout, &do_cmd_pid) < 0)
1.18 markus 1122: exit(1);
1.1 deraadt 1123: if (response() < 0)
1124: exit(1);
1.173 djm 1125: free(bp);
1.1 deraadt 1126: }
1.18 markus 1127: source(1, argv + i);
1.1 deraadt 1128: }
1129: }
1.193 millert 1130: out:
1.228 djm 1131: if (mode == MODE_SFTP)
1.216 djm 1132: free(conn);
1.193 millert 1133: free(tuser);
1134: free(thost);
1135: free(targ);
1136: free(suser);
1137: free(host);
1138: free(src);
1.1 deraadt 1139: }
1140:
1141: void
1.216 djm 1142: tolocal(int argc, char **argv, enum scp_mode_e mode, char *sftp_direct)
1.1 deraadt 1143: {
1.193 millert 1144: char *bp, *host = NULL, *src = NULL, *suser = NULL;
1.129 djm 1145: arglist alist;
1.216 djm 1146: struct sftp_conn *conn = NULL;
1.193 millert 1147: int i, r, sport = -1;
1.129 djm 1148:
1149: memset(&alist, '\0', sizeof(alist));
1150: alist.list = NULL;
1.1 deraadt 1151:
1152: for (i = 0; i < argc - 1; i++) {
1.193 millert 1153: free(suser);
1154: free(host);
1155: free(src);
1.194 millert 1156: r = parse_scp_uri(argv[i], &suser, &host, &sport, &src);
1.193 millert 1157: if (r == -1) {
1.194 millert 1158: fmprintf(stderr, "%s: invalid uri\n", argv[i]);
1.193 millert 1159: ++errs;
1160: continue;
1161: }
1162: if (r != 0)
1163: parse_user_host_path(argv[i], &suser, &host, &src);
1164: if (suser != NULL && !okname(suser)) {
1165: ++errs;
1166: continue;
1167: }
1168: if (!host) { /* Local to local. */
1.129 djm 1169: freeargs(&alist);
1170: addargs(&alist, "%s", _PATH_CP);
1171: if (iamrecursive)
1172: addargs(&alist, "-r");
1173: if (pflag)
1174: addargs(&alist, "-p");
1.165 guenther 1175: addargs(&alist, "--");
1.129 djm 1176: addargs(&alist, "%s", argv[i]);
1177: addargs(&alist, "%s", argv[argc-1]);
1178: if (do_local_cmd(&alist))
1.1 deraadt 1179: ++errs;
1180: continue;
1181: }
1.193 millert 1182: /* Remote to local. */
1.216 djm 1183: if (mode == MODE_SFTP) {
1.219 djm 1184: conn = do_sftp_connect(host, suser, sport,
1185: sftp_direct, &remin, &remout, &do_cmd_pid);
1.216 djm 1186: if (conn == NULL) {
1187: error("Couldn't make sftp connection "
1188: "to server");
1189: ++errs;
1190: continue;
1191: }
1192:
1193: /* The protocol */
1194: sink_sftp(1, argv[argc - 1], src, conn);
1195:
1196: free(conn);
1197: (void) close(remin);
1198: (void) close(remout);
1199: remin = remout = -1;
1200: continue;
1201: }
1202: /* SCP */
1.171 djm 1203: xasprintf(&bp, "%s -f %s%s",
1204: cmd, *src == '-' ? "-- " : "", src);
1.219 djm 1205: if (do_cmd(ssh_program, host, suser, sport, bp,
1206: &remin, &remout, &do_cmd_pid) < 0) {
1.173 djm 1207: free(bp);
1.18 markus 1208: ++errs;
1209: continue;
1.1 deraadt 1210: }
1.173 djm 1211: free(bp);
1.202 djm 1212: sink(1, argv + argc - 1, src);
1.18 markus 1213: (void) close(remin);
1.1 deraadt 1214: remin = remout = -1;
1215: }
1.193 millert 1216: free(suser);
1217: free(host);
1218: free(src);
1.1 deraadt 1219: }
1220:
1.228 djm 1221: /* Prepare remote path, handling ~ by assuming cwd is the homedir */
1.226 djm 1222: static char *
1.228 djm 1223: prepare_remote_path(struct sftp_conn *conn, const char *path)
1.226 djm 1224: {
1.228 djm 1225: /* Handle ~ prefixed paths */
1226: if (*path != '~')
1227: return xstrdup(path);
1228: if (*path == '\0' || strcmp(path, "~") == 0)
1229: return xstrdup(".");
1230: if (strncmp(path, "~/", 2) == 0)
1231: return xstrdup(path + 2);
1.227 djm 1232: if (can_expand_path(conn))
1233: return do_expand_path(conn, path);
1.228 djm 1234: /* No protocol extension */
1235: error("~user paths are not currently supported");
1236: return NULL;
1.226 djm 1237: }
1238:
1.1 deraadt 1239: void
1.228 djm 1240: source_sftp(int argc, char *src, char *targ, struct sftp_conn *conn)
1.216 djm 1241: {
1242: char *target = NULL, *filename = NULL, *abs_dst = NULL;
1243: int target_is_dir;
1244:
1245: if ((filename = basename(src)) == NULL)
1246: fatal("basename %s: %s", src, strerror(errno));
1247:
1248: /*
1249: * No need to glob here - the local shell already took care of
1250: * the expansions
1251: */
1.228 djm 1252: if ((target = prepare_remote_path(conn, targ)) == NULL)
1.226 djm 1253: cleanup_exit(255);
1.216 djm 1254: target_is_dir = remote_is_dir(conn, target);
1255: if (targetshouldbedirectory && !target_is_dir) {
1256: fatal("Target is not a directory, but more files selected "
1257: "for upload");
1258: }
1259: if (target_is_dir)
1260: abs_dst = path_append(target, filename);
1261: else {
1262: abs_dst = target;
1263: target = NULL;
1264: }
1265: debug3_f("copying local %s to remote %s", src, abs_dst);
1266:
1267: if (local_is_dir(src) && iamrecursive) {
1.220 djm 1268: if (upload_dir(conn, src, abs_dst, pflag,
1.221 djm 1269: SFTP_PROGRESS_ONLY, 0, 0, 1) != 0) {
1.216 djm 1270: fatal("failed to upload directory %s to %s",
1271: src, abs_dst);
1272: }
1273: } else if (do_upload(conn, src, abs_dst, pflag, 0, 0) != 0)
1274: fatal("failed to upload file %s to %s", src, abs_dst);
1275:
1276: free(abs_dst);
1277: free(target);
1278: }
1279:
1280: void
1.104 djm 1281: source(int argc, char **argv)
1.1 deraadt 1282: {
1283: struct stat stb;
1284: static BUF buffer;
1285: BUF *bp;
1.163 dtucker 1286: off_t i, statbytes;
1.180 djm 1287: size_t amt, nr;
1.125 dtucker 1288: int fd = -1, haderr, indx;
1.206 dtucker 1289: char *last, *name, buf[PATH_MAX + 128], encname[PATH_MAX];
1.65 deraadt 1290: int len;
1.1 deraadt 1291:
1292: for (indx = 0; indx < argc; ++indx) {
1.18 markus 1293: name = argv[indx];
1.11 aaron 1294: statbytes = 0;
1.65 deraadt 1295: len = strlen(name);
1296: while (len > 1 && name[len-1] == '/')
1297: name[--len] = '\0';
1.205 deraadt 1298: if ((fd = open(name, O_RDONLY|O_NONBLOCK, 0)) == -1)
1.158 dtucker 1299: goto syserr;
1.85 markus 1300: if (strchr(name, '\n') != NULL) {
1.158 dtucker 1301: strnvis(encname, name, sizeof(encname), VIS_NL);
1302: name = encname;
1.85 markus 1303: }
1.205 deraadt 1304: if (fstat(fd, &stb) == -1) {
1.1 deraadt 1305: syserr: run_err("%s: %s", name, strerror(errno));
1306: goto next;
1307: }
1.163 dtucker 1308: if (stb.st_size < 0) {
1309: run_err("%s: %s", name, "Negative file size");
1310: goto next;
1311: }
1.157 djm 1312: unset_nonblock(fd);
1.1 deraadt 1313: switch (stb.st_mode & S_IFMT) {
1314: case S_IFREG:
1315: break;
1316: case S_IFDIR:
1317: if (iamrecursive) {
1318: rsource(name, &stb);
1319: goto next;
1320: }
1321: /* FALLTHROUGH */
1322: default:
1323: run_err("%s: not a regular file", name);
1324: goto next;
1325: }
1326: if ((last = strrchr(name, '/')) == NULL)
1327: last = name;
1328: else
1329: ++last;
1.11 aaron 1330: curfile = last;
1.1 deraadt 1331: if (pflag) {
1.176 guenther 1332: if (do_times(remout, verbose_mode, &stb) < 0)
1.1 deraadt 1333: goto next;
1334: }
1335: #define FILEMODEMASK (S_ISUID|S_ISGID|S_IRWXU|S_IRWXG|S_IRWXO)
1.61 markus 1336: snprintf(buf, sizeof buf, "C%04o %lld %s\n",
1.47 markus 1337: (u_int) (stb.st_mode & FILEMODEMASK),
1.62 markus 1338: (long long)stb.st_size, last);
1.186 schwarze 1339: if (verbose_mode)
1340: fmprintf(stderr, "Sending file modes: %s", buf);
1.107 deraadt 1341: (void) atomicio(vwrite, remout, buf, strlen(buf));
1.1 deraadt 1342: if (response() < 0)
1343: goto next;
1.161 djm 1344: if ((bp = allocbuf(&buffer, fd, COPY_BUFLEN)) == NULL) {
1.127 deraadt 1345: next: if (fd != -1) {
1346: (void) close(fd);
1347: fd = -1;
1348: }
1.1 deraadt 1349: continue;
1350: }
1.97 fgsch 1351: if (showprogress)
1352: start_progress_meter(curfile, stb.st_size, &statbytes);
1.161 djm 1353: set_nonblock(remout);
1.1 deraadt 1354: for (haderr = i = 0; i < stb.st_size; i += bp->cnt) {
1355: amt = bp->cnt;
1.163 dtucker 1356: if (i + (off_t)amt > stb.st_size)
1.1 deraadt 1357: amt = stb.st_size - i;
1358: if (!haderr) {
1.180 djm 1359: if ((nr = atomicio(read, fd,
1360: bp->buf, amt)) != amt) {
1.122 avsm 1361: haderr = errno;
1.180 djm 1362: memset(bp->buf + nr, 0, amt - nr);
1363: }
1.1 deraadt 1364: }
1.161 djm 1365: /* Keep writing after error to retain sync */
1366: if (haderr) {
1367: (void)atomicio(vwrite, remout, bp->buf, amt);
1.180 djm 1368: memset(bp->buf, 0, amt);
1.161 djm 1369: continue;
1.1 deraadt 1370: }
1.167 djm 1371: if (atomicio6(vwrite, remout, bp->buf, amt, scpio,
1.161 djm 1372: &statbytes) != amt)
1373: haderr = errno;
1.1 deraadt 1374: }
1.161 djm 1375: unset_nonblock(remout);
1.4 aaron 1376:
1.127 deraadt 1377: if (fd != -1) {
1.205 deraadt 1378: if (close(fd) == -1 && !haderr)
1.127 deraadt 1379: haderr = errno;
1380: fd = -1;
1381: }
1.1 deraadt 1382: if (!haderr)
1.107 deraadt 1383: (void) atomicio(vwrite, remout, "", 1);
1.1 deraadt 1384: else
1385: run_err("%s: %s", name, strerror(haderr));
1.18 markus 1386: (void) response();
1.185 dtucker 1387: if (showprogress)
1388: stop_progress_meter();
1.1 deraadt 1389: }
1390: }
1391:
1392: void
1.104 djm 1393: rsource(char *name, struct stat *statp)
1.1 deraadt 1394: {
1395: DIR *dirp;
1396: struct dirent *dp;
1.181 deraadt 1397: char *last, *vect[1], path[PATH_MAX];
1.1 deraadt 1398:
1399: if (!(dirp = opendir(name))) {
1400: run_err("%s: %s", name, strerror(errno));
1401: return;
1402: }
1403: last = strrchr(name, '/');
1.183 mmcc 1404: if (last == NULL)
1.1 deraadt 1405: last = name;
1406: else
1407: last++;
1408: if (pflag) {
1.176 guenther 1409: if (do_times(remout, verbose_mode, statp) < 0) {
1.1 deraadt 1410: closedir(dirp);
1411: return;
1412: }
1413: }
1.55 deraadt 1414: (void) snprintf(path, sizeof path, "D%04o %d %.1024s\n",
1.47 markus 1415: (u_int) (statp->st_mode & FILEMODEMASK), 0, last);
1.18 markus 1416: if (verbose_mode)
1.186 schwarze 1417: fmprintf(stderr, "Entering directory: %s", path);
1.107 deraadt 1418: (void) atomicio(vwrite, remout, path, strlen(path));
1.1 deraadt 1419: if (response() < 0) {
1420: closedir(dirp);
1421: return;
1422: }
1.63 stevesk 1423: while ((dp = readdir(dirp)) != NULL) {
1.1 deraadt 1424: if (dp->d_ino == 0)
1425: continue;
1426: if (!strcmp(dp->d_name, ".") || !strcmp(dp->d_name, ".."))
1427: continue;
1428: if (strlen(name) + 1 + strlen(dp->d_name) >= sizeof(path) - 1) {
1429: run_err("%s/%s: name too long", name, dp->d_name);
1430: continue;
1431: }
1.55 deraadt 1432: (void) snprintf(path, sizeof path, "%s/%s", name, dp->d_name);
1.1 deraadt 1433: vect[0] = path;
1434: source(1, vect);
1435: }
1.18 markus 1436: (void) closedir(dirp);
1.107 deraadt 1437: (void) atomicio(vwrite, remout, "E\n", 2);
1.18 markus 1438: (void) response();
1.1 deraadt 1439: }
1440:
1.216 djm 1441: void
1442: sink_sftp(int argc, char *dst, const char *src, struct sftp_conn *conn)
1443: {
1444: char *abs_src = NULL;
1445: char *abs_dst = NULL;
1446: glob_t g;
1.228 djm 1447: char *filename, *tmp = NULL;
1.216 djm 1448: int i, r, err = 0;
1449:
1.226 djm 1450: memset(&g, 0, sizeof(g));
1.216 djm 1451: /*
1452: * Here, we need remote glob as SFTP can not depend on remote shell
1453: * expansions
1454: */
1455:
1.228 djm 1456: if ((abs_src = prepare_remote_path(conn, src)) == NULL) {
1.226 djm 1457: err = -1;
1458: goto out;
1459: }
1.216 djm 1460:
1461: debug3_f("copying remote %s to local %s", abs_src, dst);
1462: if ((r = remote_glob(conn, abs_src, GLOB_MARK, NULL, &g)) != 0) {
1463: if (r == GLOB_NOSPACE)
1464: error("Too many glob matches for \"%s\".", abs_src);
1465: else
1466: error("File \"%s\" not found.", abs_src);
1467: err = -1;
1468: goto out;
1469: }
1470:
1471: if (g.gl_matchc > 1 && !local_is_dir(dst)) {
1472: error("Multiple files match pattern, but destination "
1473: "\"%s\" is not a directory", dst);
1474: err = -1;
1475: goto out;
1476: }
1477:
1478: for (i = 0; g.gl_pathv[i] && !interrupted; i++) {
1479: tmp = xstrdup(g.gl_pathv[i]);
1480: if ((filename = basename(tmp)) == NULL) {
1481: error("basename %s: %s", tmp, strerror(errno));
1482: err = -1;
1483: goto out;
1484: }
1485:
1486: if (local_is_dir(dst))
1487: abs_dst = path_append(dst, filename);
1488: else
1489: abs_dst = xstrdup(dst);
1490:
1491: debug("Fetching %s to %s\n", g.gl_pathv[i], abs_dst);
1492: if (globpath_is_dir(g.gl_pathv[i]) && iamrecursive) {
1493: if (download_dir(conn, g.gl_pathv[i], abs_dst, NULL,
1.221 djm 1494: pflag, SFTP_PROGRESS_ONLY, 0, 0, 1) == -1)
1.216 djm 1495: err = -1;
1496: } else {
1497: if (do_download(conn, g.gl_pathv[i], abs_dst, NULL,
1498: pflag, 0, 0) == -1)
1499: err = -1;
1500: }
1501: free(abs_dst);
1502: abs_dst = NULL;
1.217 dtucker 1503: free(tmp);
1504: tmp = NULL;
1.216 djm 1505: }
1506:
1507: out:
1508: free(abs_src);
1.217 dtucker 1509: free(tmp);
1.216 djm 1510: globfree(&g);
1511: if (err == -1) {
1512: fatal("Failed to download file '%s'", src);
1513: }
1514: }
1515:
1516:
1.189 millert 1517: #define TYPE_OVERFLOW(type, val) \
1518: ((sizeof(type) == 4 && (val) > INT32_MAX) || \
1519: (sizeof(type) == 8 && (val) > INT64_MAX) || \
1520: (sizeof(type) != 4 && sizeof(type) != 8))
1521:
1.1 deraadt 1522: void
1.202 djm 1523: sink(int argc, char **argv, const char *src)
1.1 deraadt 1524: {
1525: static BUF buffer;
1526: struct stat stb;
1527: BUF *bp;
1.122 avsm 1528: off_t i;
1.124 djm 1529: size_t j, count;
1.140 deraadt 1530: int amt, exists, first, ofd;
1531: mode_t mode, omode, mask;
1.97 fgsch 1532: off_t size, statbytes;
1.176 guenther 1533: unsigned long long ull;
1.209 djm 1534: int setimes, targisdir, wrerr;
1.186 schwarze 1535: char ch, *cp, *np, *targ, *why, *vect[1], buf[2048], visbuf[2048];
1.204 djm 1536: char **patterns = NULL;
1537: size_t n, npatterns = 0;
1.40 markus 1538: struct timeval tv[2];
1.1 deraadt 1539:
1.66 stevesk 1540: #define atime tv[0]
1541: #define mtime tv[1]
1.118 deraadt 1542: #define SCREWUP(str) { why = str; goto screwup; }
1.1 deraadt 1543:
1.189 millert 1544: if (TYPE_OVERFLOW(time_t, 0) || TYPE_OVERFLOW(off_t, 0))
1545: SCREWUP("Unexpected off_t/time_t size");
1546:
1.1 deraadt 1547: setimes = targisdir = 0;
1548: mask = umask(0);
1549: if (!pflag)
1.18 markus 1550: (void) umask(mask);
1.1 deraadt 1551: if (argc != 1) {
1552: run_err("ambiguous target");
1553: exit(1);
1554: }
1555: targ = *argv;
1556: if (targetshouldbedirectory)
1557: verifydir(targ);
1.18 markus 1558:
1.107 deraadt 1559: (void) atomicio(vwrite, remout, "", 1);
1.1 deraadt 1560: if (stat(targ, &stb) == 0 && S_ISDIR(stb.st_mode))
1561: targisdir = 1;
1.202 djm 1562: if (src != NULL && !iamrecursive && !Tflag) {
1563: /*
1564: * Prepare to try to restrict incoming filenames to match
1565: * the requested destination file glob.
1566: */
1.204 djm 1567: if (brace_expand(src, &patterns, &npatterns) != 0)
1.213 djm 1568: fatal_f("could not expand pattern");
1.202 djm 1569: }
1.1 deraadt 1570: for (first = 1;; first = 0) {
1571: cp = buf;
1.122 avsm 1572: if (atomicio(read, remin, cp, 1) != 1)
1.204 djm 1573: goto done;
1.1 deraadt 1574: if (*cp++ == '\n')
1575: SCREWUP("unexpected <newline>");
1576: do {
1.30 deraadt 1577: if (atomicio(read, remin, &ch, sizeof(ch)) != sizeof(ch))
1.1 deraadt 1578: SCREWUP("lost connection");
1579: *cp++ = ch;
1580: } while (cp < &buf[sizeof(buf) - 1] && ch != '\n');
1581: *cp = 0;
1.114 markus 1582: if (verbose_mode)
1.186 schwarze 1583: fmprintf(stderr, "Sink: %s", buf);
1.1 deraadt 1584:
1585: if (buf[0] == '\01' || buf[0] == '\02') {
1.186 schwarze 1586: if (iamremote == 0) {
1587: (void) snmprintf(visbuf, sizeof(visbuf),
1588: NULL, "%s", buf + 1);
1.107 deraadt 1589: (void) atomicio(vwrite, STDERR_FILENO,
1.186 schwarze 1590: visbuf, strlen(visbuf));
1591: }
1.1 deraadt 1592: if (buf[0] == '\02')
1593: exit(1);
1594: ++errs;
1595: continue;
1596: }
1597: if (buf[0] == 'E') {
1.107 deraadt 1598: (void) atomicio(vwrite, remout, "", 1);
1.204 djm 1599: goto done;
1.1 deraadt 1600: }
1601: if (ch == '\n')
1602: *--cp = 0;
1603:
1604: cp = buf;
1605: if (*cp == 'T') {
1606: setimes++;
1607: cp++;
1.176 guenther 1608: if (!isdigit((unsigned char)*cp))
1609: SCREWUP("mtime.sec not present");
1610: ull = strtoull(cp, &cp, 10);
1.66 stevesk 1611: if (!cp || *cp++ != ' ')
1.1 deraadt 1612: SCREWUP("mtime.sec not delimited");
1.189 millert 1613: if (TYPE_OVERFLOW(time_t, ull))
1.176 guenther 1614: setimes = 0; /* out of range */
1615: mtime.tv_sec = ull;
1.66 stevesk 1616: mtime.tv_usec = strtol(cp, &cp, 10);
1.176 guenther 1617: if (!cp || *cp++ != ' ' || mtime.tv_usec < 0 ||
1618: mtime.tv_usec > 999999)
1.1 deraadt 1619: SCREWUP("mtime.usec not delimited");
1.176 guenther 1620: if (!isdigit((unsigned char)*cp))
1621: SCREWUP("atime.sec not present");
1622: ull = strtoull(cp, &cp, 10);
1.66 stevesk 1623: if (!cp || *cp++ != ' ')
1.1 deraadt 1624: SCREWUP("atime.sec not delimited");
1.189 millert 1625: if (TYPE_OVERFLOW(time_t, ull))
1.176 guenther 1626: setimes = 0; /* out of range */
1627: atime.tv_sec = ull;
1.66 stevesk 1628: atime.tv_usec = strtol(cp, &cp, 10);
1.176 guenther 1629: if (!cp || *cp++ != '\0' || atime.tv_usec < 0 ||
1630: atime.tv_usec > 999999)
1.1 deraadt 1631: SCREWUP("atime.usec not delimited");
1.107 deraadt 1632: (void) atomicio(vwrite, remout, "", 1);
1.1 deraadt 1633: continue;
1634: }
1635: if (*cp != 'C' && *cp != 'D') {
1636: /*
1637: * Check for the case "rcp remote:foo\* local:bar".
1638: * In this case, the line "No match." can be returned
1639: * by the shell before the rcp command on the remote is
1640: * executed so the ^Aerror_message convention isn't
1641: * followed.
1642: */
1643: if (first) {
1644: run_err("%s", cp);
1645: exit(1);
1646: }
1647: SCREWUP("expected control record");
1648: }
1649: mode = 0;
1650: for (++cp; cp < buf + 5; cp++) {
1651: if (*cp < '0' || *cp > '7')
1652: SCREWUP("bad mode");
1653: mode = (mode << 3) | (*cp - '0');
1654: }
1.197 dtucker 1655: if (!pflag)
1656: mode &= ~mask;
1.1 deraadt 1657: if (*cp++ != ' ')
1658: SCREWUP("mode not delimited");
1659:
1.188 millert 1660: if (!isdigit((unsigned char)*cp))
1661: SCREWUP("size not present");
1662: ull = strtoull(cp, &cp, 10);
1663: if (!cp || *cp++ != ' ')
1.1 deraadt 1664: SCREWUP("size not delimited");
1.189 millert 1665: if (TYPE_OVERFLOW(off_t, ull))
1.188 millert 1666: SCREWUP("size out of range");
1667: size = (off_t)ull;
1668:
1.198 djm 1669: if (*cp == '\0' || strchr(cp, '/') != NULL ||
1670: strcmp(cp, ".") == 0 || strcmp(cp, "..") == 0) {
1.114 markus 1671: run_err("error: unexpected filename: %s", cp);
1672: exit(1);
1673: }
1.204 djm 1674: if (npatterns > 0) {
1675: for (n = 0; n < npatterns; n++) {
1676: if (fnmatch(patterns[n], cp, 0) == 0)
1677: break;
1678: }
1679: if (n >= npatterns)
1680: SCREWUP("filename does not match request");
1681: }
1.1 deraadt 1682: if (targisdir) {
1683: static char *namebuf;
1.124 djm 1684: static size_t cursize;
1.1 deraadt 1685: size_t need;
1686:
1687: need = strlen(targ) + strlen(cp) + 250;
1.55 deraadt 1688: if (need > cursize) {
1.173 djm 1689: free(namebuf);
1.18 markus 1690: namebuf = xmalloc(need);
1.55 deraadt 1691: cursize = need;
1692: }
1693: (void) snprintf(namebuf, need, "%s%s%s", targ,
1.88 mouring 1694: strcmp(targ, "/") ? "/" : "", cp);
1.1 deraadt 1695: np = namebuf;
1696: } else
1697: np = targ;
1.12 aaron 1698: curfile = cp;
1.1 deraadt 1699: exists = stat(np, &stb) == 0;
1700: if (buf[0] == 'D') {
1701: int mod_flag = pflag;
1.114 markus 1702: if (!iamrecursive)
1703: SCREWUP("received directory without -r");
1.1 deraadt 1704: if (exists) {
1705: if (!S_ISDIR(stb.st_mode)) {
1706: errno = ENOTDIR;
1707: goto bad;
1708: }
1709: if (pflag)
1.18 markus 1710: (void) chmod(np, mode);
1.1 deraadt 1711: } else {
1.214 djm 1712: /* Handle copying from a read-only directory */
1.1 deraadt 1713: mod_flag = 1;
1.205 deraadt 1714: if (mkdir(np, mode | S_IRWXU) == -1)
1.1 deraadt 1715: goto bad;
1716: }
1.58 danh 1717: vect[0] = xstrdup(np);
1.202 djm 1718: sink(1, vect, src);
1.1 deraadt 1719: if (setimes) {
1720: setimes = 0;
1.210 djm 1721: (void) utimes(vect[0], tv);
1.1 deraadt 1722: }
1723: if (mod_flag)
1.59 deraadt 1724: (void) chmod(vect[0], mode);
1.173 djm 1725: free(vect[0]);
1.1 deraadt 1726: continue;
1727: }
1728: omode = mode;
1.174 dtucker 1729: mode |= S_IWUSR;
1.205 deraadt 1730: if ((ofd = open(np, O_WRONLY|O_CREAT, mode)) == -1) {
1.1 deraadt 1731: bad: run_err("%s: %s", np, strerror(errno));
1732: continue;
1733: }
1.107 deraadt 1734: (void) atomicio(vwrite, remout, "", 1);
1.161 djm 1735: if ((bp = allocbuf(&buffer, ofd, COPY_BUFLEN)) == NULL) {
1.18 markus 1736: (void) close(ofd);
1.1 deraadt 1737: continue;
1738: }
1739: cp = bp->buf;
1.209 djm 1740: wrerr = 0;
1.7 deraadt 1741:
1.209 djm 1742: /*
1743: * NB. do not use run_err() unless immediately followed by
1744: * exit() below as it may send a spurious reply that might
1745: * desyncronise us from the peer. Use note_err() instead.
1746: */
1.12 aaron 1747: statbytes = 0;
1.97 fgsch 1748: if (showprogress)
1749: start_progress_meter(curfile, size, &statbytes);
1.161 djm 1750: set_nonblock(remin);
1751: for (count = i = 0; i < size; i += bp->cnt) {
1752: amt = bp->cnt;
1.1 deraadt 1753: if (i + amt > size)
1754: amt = size - i;
1755: count += amt;
1756: do {
1.167 djm 1757: j = atomicio6(read, remin, cp, amt,
1758: scpio, &statbytes);
1.122 avsm 1759: if (j == 0) {
1.161 djm 1760: run_err("%s", j != EPIPE ?
1761: strerror(errno) :
1.63 stevesk 1762: "dropped connection");
1.1 deraadt 1763: exit(1);
1764: }
1765: amt -= j;
1766: cp += j;
1767: } while (amt > 0);
1.112 djm 1768:
1.1 deraadt 1769: if (count == bp->cnt) {
1770: /* Keep reading so we stay sync'd up. */
1.209 djm 1771: if (!wrerr) {
1.122 avsm 1772: if (atomicio(vwrite, ofd, bp->buf,
1773: count) != count) {
1.209 djm 1774: note_err("%s: %s", np,
1775: strerror(errno));
1776: wrerr = 1;
1.1 deraadt 1777: }
1778: }
1779: count = 0;
1780: cp = bp->buf;
1781: }
1782: }
1.161 djm 1783: unset_nonblock(remin);
1.209 djm 1784: if (count != 0 && !wrerr &&
1.122 avsm 1785: atomicio(vwrite, ofd, bp->buf, count) != count) {
1.209 djm 1786: note_err("%s: %s", np, strerror(errno));
1787: wrerr = 1;
1.1 deraadt 1788: }
1.209 djm 1789: if (!wrerr && (!exists || S_ISREG(stb.st_mode)) &&
1790: ftruncate(ofd, size) != 0)
1791: note_err("%s: truncate: %s", np, strerror(errno));
1.1 deraadt 1792: if (pflag) {
1793: if (exists || omode != mode)
1.116 dtucker 1794: if (fchmod(ofd, omode)) {
1.209 djm 1795: note_err("%s: set mode: %s",
1.63 stevesk 1796: np, strerror(errno));
1.116 dtucker 1797: }
1.1 deraadt 1798: } else {
1799: if (!exists && omode != mode)
1.116 dtucker 1800: if (fchmod(ofd, omode & ~mask)) {
1.209 djm 1801: note_err("%s: set mode: %s",
1.63 stevesk 1802: np, strerror(errno));
1.116 dtucker 1803: }
1.1 deraadt 1804: }
1.209 djm 1805: if (close(ofd) == -1)
1.211 millert 1806: note_err("%s: close: %s", np, strerror(errno));
1.18 markus 1807: (void) response();
1.185 dtucker 1808: if (showprogress)
1809: stop_progress_meter();
1.209 djm 1810: if (setimes && !wrerr) {
1.1 deraadt 1811: setimes = 0;
1.205 deraadt 1812: if (utimes(np, tv) == -1) {
1.209 djm 1813: note_err("%s: set times: %s",
1.63 stevesk 1814: np, strerror(errno));
1.1 deraadt 1815: }
1816: }
1.209 djm 1817: /* If no error was noted then signal success for this file */
1818: if (note_err(NULL) == 0)
1.107 deraadt 1819: (void) atomicio(vwrite, remout, "", 1);
1.1 deraadt 1820: }
1.204 djm 1821: done:
1822: for (n = 0; n < npatterns; n++)
1823: free(patterns[n]);
1824: free(patterns);
1825: return;
1.1 deraadt 1826: screwup:
1.204 djm 1827: for (n = 0; n < npatterns; n++)
1828: free(patterns[n]);
1829: free(patterns);
1.1 deraadt 1830: run_err("protocol error: %s", why);
1831: exit(1);
1.219 djm 1832: }
1833:
1834: void
1835: throughlocal_sftp(struct sftp_conn *from, struct sftp_conn *to,
1.228 djm 1836: char *src, char *targ)
1.219 djm 1837: {
1838: char *target = NULL, *filename = NULL, *abs_dst = NULL;
1.228 djm 1839: char *abs_src = NULL, *tmp = NULL;
1.219 djm 1840: glob_t g;
1841: int i, r, targetisdir, err = 0;
1842:
1843: if ((filename = basename(src)) == NULL)
1844: fatal("basename %s: %s", src, strerror(errno));
1845:
1.228 djm 1846: if ((abs_src = prepare_remote_path(from, src)) == NULL ||
1847: (target = prepare_remote_path(to, targ)) == NULL)
1.226 djm 1848: cleanup_exit(255);
1.219 djm 1849: memset(&g, 0, sizeof(g));
1850:
1851: targetisdir = remote_is_dir(to, target);
1852: if (!targetisdir && targetshouldbedirectory) {
1853: error("Destination path \"%s\" is not a directory", target);
1854: err = -1;
1855: goto out;
1856: }
1857:
1858: debug3_f("copying remote %s to remote %s", abs_src, target);
1859: if ((r = remote_glob(from, abs_src, GLOB_MARK, NULL, &g)) != 0) {
1860: if (r == GLOB_NOSPACE)
1861: error("Too many glob matches for \"%s\".", abs_src);
1862: else
1863: error("File \"%s\" not found.", abs_src);
1864: err = -1;
1865: goto out;
1866: }
1867:
1868: for (i = 0; g.gl_pathv[i] && !interrupted; i++) {
1869: tmp = xstrdup(g.gl_pathv[i]);
1870: if ((filename = basename(tmp)) == NULL) {
1871: error("basename %s: %s", tmp, strerror(errno));
1872: err = -1;
1873: goto out;
1874: }
1875:
1876: if (targetisdir)
1877: abs_dst = path_append(target, filename);
1878: else
1879: abs_dst = xstrdup(target);
1880:
1881: debug("Fetching %s to %s\n", g.gl_pathv[i], abs_dst);
1882: if (globpath_is_dir(g.gl_pathv[i]) && iamrecursive) {
1883: if (crossload_dir(from, to, g.gl_pathv[i], abs_dst,
1.221 djm 1884: NULL, pflag, SFTP_PROGRESS_ONLY, 1) == -1)
1.219 djm 1885: err = -1;
1886: } else {
1887: if (do_crossload(from, to, g.gl_pathv[i], abs_dst, NULL,
1888: pflag) == -1)
1889: err = -1;
1890: }
1891: free(abs_dst);
1892: abs_dst = NULL;
1893: free(tmp);
1894: tmp = NULL;
1895: }
1896:
1897: out:
1898: free(abs_src);
1899: free(abs_dst);
1900: free(target);
1901: free(tmp);
1902: globfree(&g);
1903: if (err == -1)
1904: fatal("Failed to download file '%s'", src);
1.1 deraadt 1905: }
1906:
1907: int
1.86 itojun 1908: response(void)
1.1 deraadt 1909: {
1.186 schwarze 1910: char ch, *cp, resp, rbuf[2048], visbuf[2048];
1.1 deraadt 1911:
1.30 deraadt 1912: if (atomicio(read, remin, &resp, sizeof(resp)) != sizeof(resp))
1.1 deraadt 1913: lostconn(0);
1914:
1915: cp = rbuf;
1.18 markus 1916: switch (resp) {
1917: case 0: /* ok */
1.1 deraadt 1918: return (0);
1919: default:
1920: *cp++ = resp;
1921: /* FALLTHROUGH */
1.18 markus 1922: case 1: /* error, followed by error msg */
1923: case 2: /* fatal error, "" */
1.1 deraadt 1924: do {
1.30 deraadt 1925: if (atomicio(read, remin, &ch, sizeof(ch)) != sizeof(ch))
1.1 deraadt 1926: lostconn(0);
1927: *cp++ = ch;
1928: } while (cp < &rbuf[sizeof(rbuf) - 1] && ch != '\n');
1929:
1.186 schwarze 1930: if (!iamremote) {
1931: cp[-1] = '\0';
1932: (void) snmprintf(visbuf, sizeof(visbuf),
1933: NULL, "%s\n", rbuf);
1934: (void) atomicio(vwrite, STDERR_FILENO,
1935: visbuf, strlen(visbuf));
1936: }
1.1 deraadt 1937: ++errs;
1938: if (resp == 1)
1939: return (-1);
1940: exit(1);
1941: }
1942: /* NOTREACHED */
1943: }
1944:
1945: void
1.86 itojun 1946: usage(void)
1.1 deraadt 1947: {
1.83 stevesk 1948: (void) fprintf(stderr,
1.229 ! djm 1949: "usage: scp [-346ABCpqRrTv] [-c cipher] [-D sftp_server_path] [-F ssh_config]\n"
1.224 djm 1950: " [-i identity_file] [-J destination] [-l limit] [-M scp|sftp]\n"
1951: " [-o ssh_option] [-P port] [-S program] source ... target\n");
1.1 deraadt 1952: exit(1);
1953: }
1954:
1955: void
1.18 markus 1956: run_err(const char *fmt,...)
1.1 deraadt 1957: {
1958: static FILE *fp;
1959: va_list ap;
1960:
1961: ++errs;
1.136 biorn 1962: if (fp != NULL || (remout != -1 && (fp = fdopen(remout, "w")))) {
1963: (void) fprintf(fp, "%c", 0x01);
1964: (void) fprintf(fp, "scp: ");
1965: va_start(ap, fmt);
1966: (void) vfprintf(fp, fmt, ap);
1967: va_end(ap);
1968: (void) fprintf(fp, "\n");
1969: (void) fflush(fp);
1970: }
1.18 markus 1971:
1972: if (!iamremote) {
1.73 markus 1973: va_start(ap, fmt);
1.186 schwarze 1974: vfmprintf(stderr, fmt, ap);
1.73 markus 1975: va_end(ap);
1.18 markus 1976: fprintf(stderr, "\n");
1977: }
1.209 djm 1978: }
1979:
1980: /*
1981: * Notes a sink error for sending at the end of a file transfer. Returns 0 if
1982: * no error has been noted or -1 otherwise. Use note_err(NULL) to flush
1983: * any active error at the end of the transfer.
1984: */
1985: int
1986: note_err(const char *fmt, ...)
1987: {
1988: static char *emsg;
1989: va_list ap;
1990:
1991: /* Replay any previously-noted error */
1992: if (fmt == NULL) {
1993: if (emsg == NULL)
1994: return 0;
1995: run_err("%s", emsg);
1996: free(emsg);
1997: emsg = NULL;
1998: return -1;
1999: }
2000:
2001: errs++;
2002: /* Prefer first-noted error */
2003: if (emsg != NULL)
2004: return -1;
2005:
2006: va_start(ap, fmt);
2007: vasnmprintf(&emsg, INT_MAX, NULL, fmt, ap);
2008: va_end(ap);
2009: return -1;
1.1 deraadt 2010: }
2011:
2012: void
1.104 djm 2013: verifydir(char *cp)
1.1 deraadt 2014: {
2015: struct stat stb;
2016:
2017: if (!stat(cp, &stb)) {
2018: if (S_ISDIR(stb.st_mode))
2019: return;
2020: errno = ENOTDIR;
2021: }
2022: run_err("%s: %s", cp, strerror(errno));
1.123 avsm 2023: killchild(0);
1.1 deraadt 2024: }
2025:
2026: int
1.104 djm 2027: okname(char *cp0)
1.1 deraadt 2028: {
2029: int c;
2030: char *cp;
2031:
2032: cp = cp0;
2033: do {
1.75 deraadt 2034: c = (int)*cp;
1.1 deraadt 2035: if (c & 0200)
2036: goto bad;
1.179 deraadt 2037: if (!isalpha(c) && !isdigit((unsigned char)c)) {
1.101 markus 2038: switch (c) {
2039: case '\'':
2040: case '"':
2041: case '`':
2042: case ' ':
2043: case '#':
2044: goto bad;
2045: default:
2046: break;
2047: }
2048: }
1.1 deraadt 2049: } while (*++cp);
2050: return (1);
2051:
1.186 schwarze 2052: bad: fmprintf(stderr, "%s: invalid user name\n", cp0);
1.1 deraadt 2053: return (0);
2054: }
2055:
2056: BUF *
1.104 djm 2057: allocbuf(BUF *bp, int fd, int blksize)
1.1 deraadt 2058: {
2059: size_t size;
2060: struct stat stb;
2061:
1.205 deraadt 2062: if (fstat(fd, &stb) == -1) {
1.1 deraadt 2063: run_err("fstat: %s", strerror(errno));
2064: return (0);
2065: }
1.187 deraadt 2066: size = ROUNDUP(stb.st_blksize, blksize);
1.95 markus 2067: if (size == 0)
1.18 markus 2068: size = blksize;
1.1 deraadt 2069: if (bp->cnt >= size)
2070: return (bp);
1.192 deraadt 2071: bp->buf = xrecallocarray(bp->buf, bp->cnt, size, 1);
1.1 deraadt 2072: bp->cnt = size;
2073: return (bp);
2074: }
2075:
2076: void
1.104 djm 2077: lostconn(int signo)
1.1 deraadt 2078: {
2079: if (!iamremote)
1.172 dtucker 2080: (void)write(STDERR_FILENO, "lost connection\n", 16);
1.74 markus 2081: if (signo)
2082: _exit(1);
2083: else
2084: exit(1);
1.225 djm 2085: }
2086:
2087: void
2088: cleanup_exit(int i)
2089: {
2090: if (remin > 0)
2091: close(remin);
2092: if (remout > 0)
2093: close(remout);
2094: if (remin2 > 0)
2095: close(remin2);
2096: if (remout2 > 0)
2097: close(remout2);
2098: if (do_cmd_pid > 0)
2099: waitpid(do_cmd_pid, NULL, 0);
2100: if (do_cmd_pid2 > 0)
2101: waitpid(do_cmd_pid2, NULL, 0);
2102: exit(i);
1.4 aaron 2103: }
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