Annotation of src/usr.bin/ssh/scp.c, Revision 1.249
1.249 ! djm 1: /* $OpenBSD: scp.c,v 1.248 2022/05/13 06:31:50 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"
1.243 djm 109: #include "sftp.h"
1.1 deraadt 110:
1.216 djm 111: #include "sftp-common.h"
112: #include "sftp-client.h"
113:
1.161 djm 114: #define COPY_BUFLEN 16384
115:
1.231 naddy 116: int do_cmd(char *, char *, char *, int, int, char *, int *, int *, pid_t *);
117: int do_cmd2(char *, char *, int, char *, int, int);
1.11 aaron 118:
1.70 mouring 119: /* Struct for addargs */
120: arglist args;
1.168 djm 121: arglist remote_remote_args;
1.41 markus 122:
1.99 markus 123: /* Bandwidth limit */
1.167 djm 124: long long limit_kbps = 0;
125: struct bwlimit bwlimit;
1.99 markus 126:
1.11 aaron 127: /* Name of current file being transferred. */
128: char *curfile;
1.4 aaron 129:
1.1 deraadt 130: /* This is set to non-zero to enable verbose mode. */
1.17 markus 131: int verbose_mode = 0;
1.216 djm 132: LogLevel log_level = SYSLOG_LEVEL_INFO;
1.1 deraadt 133:
1.6 aaron 134: /* This is set to zero if the progressmeter is not desired. */
135: int showprogress = 1;
136:
1.169 markus 137: /*
138: * This is set to non-zero if remote-remote copy should be piped
139: * through this process.
140: */
1.229 djm 141: int throughlocal = 1;
1.169 markus 142:
1.193 millert 143: /* Non-standard port to use for the ssh connection or -1. */
144: int sshport = -1;
145:
1.34 deraadt 146: /* This is the program to execute for the secured connection. ("ssh" or -S) */
1.50 markus 147: char *ssh_program = _PATH_SSH_PROGRAM;
1.34 deraadt 148:
1.92 markus 149: /* This is used to store the pid of ssh_program */
1.105 djm 150: pid_t do_cmd_pid = -1;
1.219 djm 151: pid_t do_cmd_pid2 = -1;
1.105 djm 152:
1.216 djm 153: /* Needed for sftp */
154: volatile sig_atomic_t interrupted = 0;
155:
156: int remote_glob(struct sftp_conn *, const char *, int,
157: int (*)(const char *, int), glob_t *); /* proto for sftp-glob.c */
158:
1.105 djm 159: static void
160: killchild(int signo)
161: {
1.119 dtucker 162: if (do_cmd_pid > 1) {
1.123 avsm 163: kill(do_cmd_pid, signo ? signo : SIGTERM);
1.119 dtucker 164: waitpid(do_cmd_pid, NULL, 0);
165: }
1.219 djm 166: if (do_cmd_pid2 > 1) {
167: kill(do_cmd_pid2, signo ? signo : SIGTERM);
168: waitpid(do_cmd_pid2, NULL, 0);
169: }
1.105 djm 170:
1.123 avsm 171: if (signo)
172: _exit(1);
173: exit(1);
1.105 djm 174: }
1.92 markus 175:
1.166 millert 176: static void
1.219 djm 177: suspone(int pid, int signo)
1.166 millert 178: {
179: int status;
180:
1.219 djm 181: if (pid > 1) {
182: kill(pid, signo);
183: while (waitpid(pid, &status, WUNTRACED) == -1 &&
1.166 millert 184: errno == EINTR)
185: ;
186: }
187: }
188:
1.219 djm 189: static void
190: suspchild(int signo)
191: {
192: suspone(do_cmd_pid, signo);
193: suspone(do_cmd_pid2, signo);
194: kill(getpid(), SIGSTOP);
195: }
196:
1.129 djm 197: static int
198: do_local_cmd(arglist *a)
199: {
200: u_int i;
201: int status;
202: pid_t pid;
203:
204: if (a->num == 0)
205: fatal("do_local_cmd: no arguments");
206:
207: if (verbose_mode) {
208: fprintf(stderr, "Executing:");
209: for (i = 0; i < a->num; i++)
1.186 schwarze 210: fmprintf(stderr, " %s", a->list[i]);
1.129 djm 211: fprintf(stderr, "\n");
212: }
213: if ((pid = fork()) == -1)
214: fatal("do_local_cmd: fork: %s", strerror(errno));
215:
216: if (pid == 0) {
217: execvp(a->list[0], a->list);
218: perror(a->list[0]);
219: exit(1);
220: }
221:
222: do_cmd_pid = pid;
1.207 dtucker 223: ssh_signal(SIGTERM, killchild);
224: ssh_signal(SIGINT, killchild);
225: ssh_signal(SIGHUP, killchild);
1.129 djm 226:
227: while (waitpid(pid, &status, 0) == -1)
228: if (errno != EINTR)
229: fatal("do_local_cmd: waitpid: %s", strerror(errno));
230:
231: do_cmd_pid = -1;
232:
233: if (!WIFEXITED(status) || WEXITSTATUS(status) != 0)
234: return (-1);
235:
236: return (0);
237: }
238:
1.20 markus 239: /*
240: * This function executes the given command as the specified user on the
241: * given host. This returns < 0 if execution fails, and >= 0 otherwise. This
242: * assigns the input and output file descriptors on success.
243: */
1.1 deraadt 244:
1.27 markus 245: int
1.231 naddy 246: do_cmd(char *program, char *host, char *remuser, int port, int subsystem,
247: char *cmd, int *fdin, int *fdout, pid_t *pid)
1.1 deraadt 248: {
1.18 markus 249: int pin[2], pout[2], reserved[2];
250:
251: if (verbose_mode)
1.186 schwarze 252: fmprintf(stderr,
1.78 deraadt 253: "Executing: program %s host %s, user %s, command %s\n",
1.216 djm 254: program, host,
1.78 deraadt 255: remuser ? remuser : "(unspecified)", cmd);
1.18 markus 256:
1.193 millert 257: if (port == -1)
258: port = sshport;
259:
1.20 markus 260: /*
261: * Reserve two descriptors so that the real pipes won't get
262: * descriptors 0 and 1 because that will screw up dup2 below.
263: */
1.205 deraadt 264: if (pipe(reserved) == -1)
1.142 markus 265: fatal("pipe: %s", strerror(errno));
1.18 markus 266:
267: /* Create a socket pair for communicating with ssh. */
1.205 deraadt 268: if (pipe(pin) == -1)
1.18 markus 269: fatal("pipe: %s", strerror(errno));
1.205 deraadt 270: if (pipe(pout) == -1)
1.18 markus 271: fatal("pipe: %s", strerror(errno));
272:
273: /* Free the reserved descriptors. */
274: close(reserved[0]);
275: close(reserved[1]);
1.166 millert 276:
1.207 dtucker 277: ssh_signal(SIGTSTP, suspchild);
278: ssh_signal(SIGTTIN, suspchild);
279: ssh_signal(SIGTTOU, suspchild);
1.18 markus 280:
1.106 nino 281: /* Fork a child to execute the command on the remote host using ssh. */
1.219 djm 282: *pid = fork();
283: if (*pid == 0) {
1.18 markus 284: /* Child. */
285: close(pin[1]);
286: close(pout[0]);
287: dup2(pin[0], 0);
288: dup2(pout[1], 1);
289: close(pin[0]);
290: close(pout[1]);
291:
1.216 djm 292: replacearg(&args, 0, "%s", program);
1.193 millert 293: if (port != -1) {
294: addargs(&args, "-p");
295: addargs(&args, "%d", port);
296: }
1.165 guenther 297: if (remuser != NULL) {
298: addargs(&args, "-l");
299: addargs(&args, "%s", remuser);
300: }
1.231 naddy 301: if (subsystem)
302: addargs(&args, "-s");
1.165 guenther 303: addargs(&args, "--");
1.70 mouring 304: addargs(&args, "%s", host);
305: addargs(&args, "%s", cmd);
1.18 markus 306:
1.216 djm 307: execvp(program, args.list);
308: perror(program);
1.18 markus 309: exit(1);
1.219 djm 310: } else if (*pid == -1) {
1.92 markus 311: fatal("fork: %s", strerror(errno));
1.18 markus 312: }
313: /* Parent. Close the other side, and return the local side. */
314: close(pin[0]);
315: *fdout = pin[1];
316: close(pout[1]);
317: *fdin = pout[0];
1.207 dtucker 318: ssh_signal(SIGTERM, killchild);
319: ssh_signal(SIGINT, killchild);
320: ssh_signal(SIGHUP, killchild);
1.18 markus 321: return 0;
1.1 deraadt 322: }
323:
1.169 markus 324: /*
1.196 djm 325: * This function executes a command similar to do_cmd(), but expects the
1.169 markus 326: * input and output descriptors to be setup by a previous call to do_cmd().
327: * This way the input and output of two commands can be connected.
328: */
329: int
1.219 djm 330: do_cmd2(char *host, char *remuser, int port, char *cmd,
331: int fdin, int fdout)
1.169 markus 332: {
1.219 djm 333: int status;
1.169 markus 334: pid_t pid;
335:
336: if (verbose_mode)
1.186 schwarze 337: fmprintf(stderr,
1.169 markus 338: "Executing: 2nd program %s host %s, user %s, command %s\n",
339: ssh_program, host,
340: remuser ? remuser : "(unspecified)", cmd);
341:
1.193 millert 342: if (port == -1)
343: port = sshport;
344:
1.169 markus 345: /* Fork a child to execute the command on the remote host using ssh. */
346: pid = fork();
347: if (pid == 0) {
348: dup2(fdin, 0);
349: dup2(fdout, 1);
350:
351: replacearg(&args, 0, "%s", ssh_program);
1.193 millert 352: if (port != -1) {
353: addargs(&args, "-p");
354: addargs(&args, "%d", port);
355: }
1.169 markus 356: if (remuser != NULL) {
357: addargs(&args, "-l");
358: addargs(&args, "%s", remuser);
359: }
1.208 markus 360: addargs(&args, "-oBatchMode=yes");
1.169 markus 361: addargs(&args, "--");
362: addargs(&args, "%s", host);
363: addargs(&args, "%s", cmd);
364:
365: execvp(ssh_program, args.list);
366: perror(ssh_program);
367: exit(1);
368: } else if (pid == -1) {
369: fatal("fork: %s", strerror(errno));
370: }
371: while (waitpid(pid, &status, 0) == -1)
372: if (errno != EINTR)
373: fatal("do_cmd2: waitpid: %s", strerror(errno));
374: return 0;
375: }
376:
1.1 deraadt 377: typedef struct {
1.124 djm 378: size_t cnt;
1.1 deraadt 379: char *buf;
380: } BUF;
381:
1.18 markus 382: BUF *allocbuf(BUF *, int, int);
383: void lostconn(int);
384: int okname(char *);
1.211 millert 385: void run_err(const char *,...)
386: __attribute__((__format__ (printf, 1, 2)))
387: __attribute__((__nonnull__ (1)));
388: int note_err(const char *,...)
389: __attribute__((__format__ (printf, 1, 2)));
1.18 markus 390: void verifydir(char *);
1.1 deraadt 391:
392: struct passwd *pwd;
1.18 markus 393: uid_t userid;
1.219 djm 394: int errs, remin, remout, remin2, remout2;
1.202 djm 395: int Tflag, pflag, iamremote, iamrecursive, targetshouldbedirectory;
1.1 deraadt 396:
397: #define CMDNEEDS 64
398: char cmd[CMDNEEDS]; /* must hold "rcp -r -p -d\0" */
399:
1.216 djm 400: enum scp_mode_e {
401: MODE_SCP,
402: MODE_SFTP
403: };
404:
1.18 markus 405: int response(void);
406: void rsource(char *, struct stat *);
1.202 djm 407: void sink(int, char *[], const char *);
1.18 markus 408: void source(int, char *[]);
1.216 djm 409: void tolocal(int, char *[], enum scp_mode_e, char *sftp_direct);
410: void toremote(int, char *[], enum scp_mode_e, char *sftp_direct);
1.18 markus 411: void usage(void);
1.1 deraadt 412:
1.228 djm 413: void source_sftp(int, char *, char *, struct sftp_conn *);
1.216 djm 414: void sink_sftp(int, char *, const char *, struct sftp_conn *);
1.219 djm 415: void throughlocal_sftp(struct sftp_conn *, struct sftp_conn *,
1.228 djm 416: char *, char *);
1.216 djm 417:
1.1 deraadt 418: int
1.104 djm 419: main(int argc, char **argv)
1.1 deraadt 420: {
1.145 djm 421: int ch, fflag, tflag, status, n;
1.216 djm 422: char **newargv, *argv0;
1.167 djm 423: const char *errstr;
1.1 deraadt 424: extern char *optarg;
425: extern int optind;
1.246 deraadt 426: enum scp_mode_e mode = MODE_SFTP;
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:
1.235 djm 441: log_init(argv0, log_level, SYSLOG_FACILITY_USER, 2);
1.218 djm 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,
1.230 djm 455: "12346ABCTdfOpqRrstvD: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;
1.230 djm 490: case 'O':
491: mode = MODE_SCP;
492: break;
493: case 's':
494: mode = MODE_SFTP;
495: break;
1.41 markus 496: case 'P':
1.193 millert 497: sshport = a2port(optarg);
498: if (sshport <= 0)
499: fatal("bad port \"%s\"\n", optarg);
1.41 markus 500: break;
501: case 'B':
1.168 djm 502: addargs(&remote_remote_args, "-oBatchmode=yes");
503: addargs(&args, "-oBatchmode=yes");
1.23 markus 504: break;
1.99 markus 505: case 'l':
1.167 djm 506: limit_kbps = strtonum(optarg, 1, 100 * 1024 * 1024,
507: &errstr);
508: if (errstr != NULL)
1.99 markus 509: usage();
1.167 djm 510: limit_kbps *= 1024; /* kbps */
511: bandwidth_limit_init(&bwlimit, limit_kbps, COPY_BUFLEN);
1.99 markus 512: break;
1.1 deraadt 513: case 'p':
514: pflag = 1;
515: break;
516: case 'r':
517: iamrecursive = 1;
518: break;
1.34 deraadt 519: case 'S':
1.41 markus 520: ssh_program = xstrdup(optarg);
521: break;
522: case 'v':
1.72 markus 523: addargs(&args, "-v");
1.168 djm 524: addargs(&remote_remote_args, "-v");
1.216 djm 525: if (verbose_mode == 0)
526: log_level = SYSLOG_LEVEL_DEBUG1;
527: else if (log_level < SYSLOG_LEVEL_DEBUG3)
528: log_level++;
1.41 markus 529: verbose_mode = 1;
530: break;
531: case 'q':
1.111 dtucker 532: addargs(&args, "-q");
1.168 djm 533: addargs(&remote_remote_args, "-q");
1.41 markus 534: showprogress = 0;
1.34 deraadt 535: break;
536:
1.18 markus 537: /* Server options. */
1.1 deraadt 538: case 'd':
539: targetshouldbedirectory = 1;
540: break;
1.18 markus 541: case 'f': /* "from" */
1.1 deraadt 542: iamremote = 1;
543: fflag = 1;
544: break;
1.18 markus 545: case 't': /* "to" */
1.1 deraadt 546: iamremote = 1;
547: tflag = 1;
548: break;
1.202 djm 549: case 'T':
550: Tflag = 1;
551: break;
1.1 deraadt 552: default:
553: usage();
554: }
1.202 djm 555: }
1.1 deraadt 556: argc -= optind;
557: argv += optind;
558:
1.235 djm 559: log_init(argv0, log_level, SYSLOG_FACILITY_USER, 2);
1.216 djm 560:
1.212 djm 561: /* Do this last because we want the user to be able to override it */
562: addargs(&args, "-oForwardAgent=no");
563:
1.218 djm 564: if (iamremote)
565: mode = MODE_SCP;
1.216 djm 566:
1.1 deraadt 567: if ((pwd = getpwuid(userid = getuid())) == NULL)
1.108 deraadt 568: fatal("unknown user %u", (u_int) userid);
1.1 deraadt 569:
1.156 djm 570: if (!isatty(STDOUT_FILENO))
1.7 deraadt 571: showprogress = 0;
1.184 deraadt 572:
573: if (pflag) {
574: /* Cannot pledge: -p allows setuid/setgid files... */
575: } else {
576: if (pledge("stdio rpath wpath cpath fattr tty proc exec",
577: NULL) == -1) {
578: perror("pledge");
579: exit(1);
580: }
581: }
1.7 deraadt 582:
1.1 deraadt 583: remin = STDIN_FILENO;
584: remout = STDOUT_FILENO;
585:
1.52 stevesk 586: if (fflag) {
1.18 markus 587: /* Follow "protocol", send data. */
588: (void) response();
1.1 deraadt 589: source(argc, argv);
590: exit(errs != 0);
591: }
1.18 markus 592: if (tflag) {
593: /* Receive data. */
1.202 djm 594: sink(argc, argv, NULL);
1.1 deraadt 595: exit(errs != 0);
596: }
597: if (argc < 2)
598: usage();
599: if (argc > 2)
600: targetshouldbedirectory = 1;
601:
602: remin = remout = -1;
1.92 markus 603: do_cmd_pid = -1;
1.1 deraadt 604: /* Command to be executed on remote system using "ssh". */
1.55 deraadt 605: (void) snprintf(cmd, sizeof cmd, "scp%s%s%s%s",
606: verbose_mode ? " -v" : "",
1.35 deraadt 607: iamrecursive ? " -r" : "", pflag ? " -p" : "",
608: targetshouldbedirectory ? " -d" : "");
1.1 deraadt 609:
1.207 dtucker 610: (void) ssh_signal(SIGPIPE, lostconn);
1.1 deraadt 611:
1.193 millert 612: if (colon(argv[argc - 1])) /* Dest is remote host. */
1.216 djm 613: toremote(argc, argv, mode, sftp_direct);
1.1 deraadt 614: else {
615: if (targetshouldbedirectory)
616: verifydir(argv[argc - 1]);
1.216 djm 617: tolocal(argc, argv, mode, sftp_direct); /* Dest is local host. */
1.92 markus 618: }
619: /*
620: * Finally check the exit status of the ssh process, if one was forked
1.164 stevesk 621: * and no error has occurred yet
1.92 markus 622: */
1.234 djm 623: if (do_cmd_pid != -1 && (mode == MODE_SFTP || errs == 0)) {
1.92 markus 624: if (remin != -1)
625: (void) close(remin);
626: if (remout != -1)
627: (void) close(remout);
628: if (waitpid(do_cmd_pid, &status, 0) == -1)
629: errs = 1;
630: else {
631: if (!WIFEXITED(status) || WEXITSTATUS(status) != 0)
632: errs = 1;
633: }
1.1 deraadt 634: }
635: exit(errs != 0);
636: }
637:
1.167 djm 638: /* Callback from atomicio6 to update progress meter and limit bandwidth */
639: static int
640: scpio(void *_cnt, size_t s)
1.161 djm 641: {
1.167 djm 642: off_t *cnt = (off_t *)_cnt;
643:
644: *cnt += s;
1.201 dtucker 645: refresh_progress_meter(0);
1.167 djm 646: if (limit_kbps > 0)
647: bandwidth_limit(&bwlimit, s);
648: return 0;
1.161 djm 649: }
650:
1.176 guenther 651: static int
652: do_times(int fd, int verb, const struct stat *sb)
653: {
654: /* strlen(2^64) == 20; strlen(10^6) == 7 */
655: char buf[(20 + 7 + 2) * 2 + 2];
656:
657: (void)snprintf(buf, sizeof(buf), "T%llu 0 %llu 0\n",
658: (unsigned long long) (sb->st_mtime < 0 ? 0 : sb->st_mtime),
659: (unsigned long long) (sb->st_atime < 0 ? 0 : sb->st_atime));
660: if (verb) {
661: fprintf(stderr, "File mtime %lld atime %lld\n",
662: (long long)sb->st_mtime, (long long)sb->st_atime);
663: fprintf(stderr, "Sending file timestamps: %s", buf);
664: }
665: (void) atomicio(vwrite, fd, buf, strlen(buf));
666: return (response());
667: }
668:
1.194 millert 669: static int
670: parse_scp_uri(const char *uri, char **userp, char **hostp, int *portp,
1.214 djm 671: char **pathp)
1.194 millert 672: {
673: int r;
674:
675: r = parse_uri("scp", uri, userp, hostp, portp, pathp);
676: if (r == 0 && *pathp == NULL)
677: *pathp = xstrdup(".");
678: return r;
679: }
680:
1.204 djm 681: /* Appends a string to an array; returns 0 on success, -1 on alloc failure */
682: static int
683: append(char *cp, char ***ap, size_t *np)
684: {
685: char **tmp;
686:
687: if ((tmp = reallocarray(*ap, *np + 1, sizeof(*tmp))) == NULL)
688: return -1;
689: tmp[(*np)] = cp;
690: (*np)++;
691: *ap = tmp;
692: return 0;
693: }
694:
695: /*
696: * Finds the start and end of the first brace pair in the pattern.
697: * returns 0 on success or -1 for invalid patterns.
698: */
699: static int
700: find_brace(const char *pattern, int *startp, int *endp)
701: {
702: int i;
703: int in_bracket, brace_level;
704:
705: *startp = *endp = -1;
706: in_bracket = brace_level = 0;
707: for (i = 0; i < INT_MAX && *endp < 0 && pattern[i] != '\0'; i++) {
708: switch (pattern[i]) {
709: case '\\':
710: /* skip next character */
711: if (pattern[i + 1] != '\0')
712: i++;
713: break;
714: case '[':
715: in_bracket = 1;
716: break;
717: case ']':
718: in_bracket = 0;
719: break;
720: case '{':
721: if (in_bracket)
722: break;
723: if (pattern[i + 1] == '}') {
724: /* Protect a single {}, for find(1), like csh */
725: i++; /* skip */
726: break;
727: }
728: if (*startp == -1)
729: *startp = i;
730: brace_level++;
731: break;
732: case '}':
733: if (in_bracket)
734: break;
735: if (*startp < 0) {
736: /* Unbalanced brace */
737: return -1;
738: }
739: if (--brace_level <= 0)
740: *endp = i;
741: break;
742: }
743: }
744: /* unbalanced brackets/braces */
745: if (*endp < 0 && (*startp >= 0 || in_bracket))
746: return -1;
747: return 0;
748: }
749:
750: /*
751: * Assembles and records a successfully-expanded pattern, returns -1 on
752: * alloc failure.
753: */
754: static int
755: emit_expansion(const char *pattern, int brace_start, int brace_end,
756: int sel_start, int sel_end, char ***patternsp, size_t *npatternsp)
757: {
758: char *cp;
759: int o = 0, tail_len = strlen(pattern + brace_end + 1);
760:
761: if ((cp = malloc(brace_start + (sel_end - sel_start) +
762: tail_len + 1)) == NULL)
763: return -1;
764:
765: /* Pattern before initial brace */
766: if (brace_start > 0) {
767: memcpy(cp, pattern, brace_start);
768: o = brace_start;
769: }
770: /* Current braced selection */
771: if (sel_end - sel_start > 0) {
772: memcpy(cp + o, pattern + sel_start,
773: sel_end - sel_start);
774: o += sel_end - sel_start;
775: }
776: /* Remainder of pattern after closing brace */
777: if (tail_len > 0) {
778: memcpy(cp + o, pattern + brace_end + 1, tail_len);
779: o += tail_len;
780: }
781: cp[o] = '\0';
782: if (append(cp, patternsp, npatternsp) != 0) {
783: free(cp);
784: return -1;
785: }
786: return 0;
787: }
788:
789: /*
790: * Expand the first encountered brace in pattern, appending the expanded
791: * patterns it yielded to the *patternsp array.
792: *
793: * Returns 0 on success or -1 on allocation failure.
794: *
795: * Signals whether expansion was performed via *expanded and whether
796: * pattern was invalid via *invalid.
797: */
798: static int
799: brace_expand_one(const char *pattern, char ***patternsp, size_t *npatternsp,
800: int *expanded, int *invalid)
801: {
802: int i;
803: int in_bracket, brace_start, brace_end, brace_level;
804: int sel_start, sel_end;
805:
806: *invalid = *expanded = 0;
807:
808: if (find_brace(pattern, &brace_start, &brace_end) != 0) {
809: *invalid = 1;
810: return 0;
811: } else if (brace_start == -1)
812: return 0;
813:
814: in_bracket = brace_level = 0;
815: for (i = sel_start = brace_start + 1; i < brace_end; i++) {
816: switch (pattern[i]) {
817: case '{':
818: if (in_bracket)
819: break;
820: brace_level++;
821: break;
822: case '}':
823: if (in_bracket)
824: break;
825: brace_level--;
826: break;
827: case '[':
828: in_bracket = 1;
829: break;
830: case ']':
831: in_bracket = 0;
832: break;
833: case '\\':
834: if (i < brace_end - 1)
835: i++; /* skip */
836: break;
837: }
838: if (pattern[i] == ',' || i == brace_end - 1) {
839: if (in_bracket || brace_level > 0)
840: continue;
841: /* End of a selection, emit an expanded pattern */
842:
843: /* Adjust end index for last selection */
844: sel_end = (i == brace_end - 1) ? brace_end : i;
845: if (emit_expansion(pattern, brace_start, brace_end,
846: sel_start, sel_end, patternsp, npatternsp) != 0)
847: return -1;
848: /* move on to the next selection */
849: sel_start = i + 1;
850: continue;
851: }
852: }
853: if (in_bracket || brace_level > 0) {
854: *invalid = 1;
855: return 0;
856: }
857: /* success */
858: *expanded = 1;
859: return 0;
860: }
861:
862: /* Expand braces from pattern. Returns 0 on success, -1 on failure */
863: static int
864: brace_expand(const char *pattern, char ***patternsp, size_t *npatternsp)
865: {
866: char *cp, *cp2, **active = NULL, **done = NULL;
867: size_t i, nactive = 0, ndone = 0;
868: int ret = -1, invalid = 0, expanded = 0;
869:
870: *patternsp = NULL;
871: *npatternsp = 0;
872:
873: /* Start the worklist with the original pattern */
874: if ((cp = strdup(pattern)) == NULL)
875: return -1;
876: if (append(cp, &active, &nactive) != 0) {
877: free(cp);
878: return -1;
879: }
880: while (nactive > 0) {
881: cp = active[nactive - 1];
882: nactive--;
883: if (brace_expand_one(cp, &active, &nactive,
884: &expanded, &invalid) == -1) {
885: free(cp);
886: goto fail;
887: }
888: if (invalid)
1.213 djm 889: fatal_f("invalid brace pattern \"%s\"", cp);
1.204 djm 890: if (expanded) {
891: /*
892: * Current entry expanded to new entries on the
893: * active list; discard the progenitor pattern.
894: */
895: free(cp);
896: continue;
897: }
898: /*
899: * Pattern did not expand; append the finename component to
900: * the completed list
901: */
902: if ((cp2 = strrchr(cp, '/')) != NULL)
903: *cp2++ = '\0';
904: else
905: cp2 = cp;
906: if (append(xstrdup(cp2), &done, &ndone) != 0) {
907: free(cp);
908: goto fail;
909: }
910: free(cp);
911: }
912: /* success */
913: *patternsp = done;
914: *npatternsp = ndone;
915: done = NULL;
916: ndone = 0;
917: ret = 0;
918: fail:
919: for (i = 0; i < nactive; i++)
920: free(active[i]);
921: free(active);
922: for (i = 0; i < ndone; i++)
923: free(done[i]);
924: free(done);
925: return ret;
926: }
927:
1.216 djm 928: static struct sftp_conn *
1.219 djm 929: do_sftp_connect(char *host, char *user, int port, char *sftp_direct,
930: int *reminp, int *remoutp, int *pidp)
1.216 djm 931: {
932: if (sftp_direct == NULL) {
1.231 naddy 933: if (do_cmd(ssh_program, host, user, port, 1, "sftp",
1.219 djm 934: reminp, remoutp, pidp) < 0)
1.216 djm 935: return NULL;
936:
937: } else {
1.247 djm 938: freeargs(&args);
1.216 djm 939: addargs(&args, "sftp-server");
1.231 naddy 940: if (do_cmd(sftp_direct, host, NULL, -1, 0, "sftp",
1.219 djm 941: reminp, remoutp, pidp) < 0)
1.216 djm 942: return NULL;
943: }
1.219 djm 944: return do_init(*reminp, *remoutp, 32768, 64, limit_kbps);
1.216 djm 945: }
946:
1.1 deraadt 947: void
1.216 djm 948: toremote(int argc, char **argv, enum scp_mode_e mode, char *sftp_direct)
1.1 deraadt 949: {
1.193 millert 950: char *suser = NULL, *host = NULL, *src = NULL;
951: char *bp, *tuser, *thost, *targ;
952: int sport = -1, tport = -1;
1.219 djm 953: struct sftp_conn *conn = NULL, *conn2 = NULL;
1.129 djm 954: arglist alist;
1.219 djm 955: int i, r, status;
1.168 djm 956: u_int j;
1.129 djm 957:
958: memset(&alist, '\0', sizeof(alist));
959: alist.list = NULL;
1.1 deraadt 960:
1.193 millert 961: /* Parse target */
1.194 millert 962: r = parse_scp_uri(argv[argc - 1], &tuser, &thost, &tport, &targ);
963: if (r == -1) {
964: fmprintf(stderr, "%s: invalid uri\n", argv[argc - 1]);
965: ++errs;
966: goto out;
967: }
1.193 millert 968: if (r != 0) {
969: if (parse_user_host_path(argv[argc - 1], &tuser, &thost,
1.194 millert 970: &targ) == -1) {
971: fmprintf(stderr, "%s: invalid target\n", argv[argc - 1]);
972: ++errs;
1.193 millert 973: goto out;
1.194 millert 974: }
1.129 djm 975: }
976:
1.193 millert 977: /* Parse source files */
1.1 deraadt 978: for (i = 0; i < argc - 1; i++) {
1.193 millert 979: free(suser);
980: free(host);
981: free(src);
1.194 millert 982: r = parse_scp_uri(argv[i], &suser, &host, &sport, &src);
983: if (r == -1) {
984: fmprintf(stderr, "%s: invalid uri\n", argv[i]);
985: ++errs;
986: continue;
987: }
988: if (r != 0) {
1.193 millert 989: parse_user_host_path(argv[i], &suser, &host, &src);
1.194 millert 990: }
1.193 millert 991: if (suser != NULL && !okname(suser)) {
992: ++errs;
993: continue;
994: }
995: if (host && throughlocal) { /* extended remote to remote */
1.219 djm 996: if (mode == MODE_SFTP) {
997: if (remin == -1) {
998: /* Connect to dest now */
999: conn = do_sftp_connect(thost, tuser,
1000: tport, sftp_direct,
1001: &remin, &remout, &do_cmd_pid);
1002: if (conn == NULL) {
1003: fatal("Unable to open "
1004: "destination connection");
1005: }
1006: debug3_f("origin in %d out %d pid %ld",
1007: remin, remout, (long)do_cmd_pid);
1008: }
1009: /*
1010: * XXX remember suser/host/sport and only
1011: * reconnect if they change between arguments.
1012: * would save reconnections for cases like
1013: * scp -3 hosta:/foo hosta:/bar hostb:
1014: */
1015: /* Connect to origin now */
1016: conn2 = do_sftp_connect(host, suser,
1017: sport, sftp_direct,
1018: &remin2, &remout2, &do_cmd_pid2);
1019: if (conn2 == NULL) {
1020: fatal("Unable to open "
1021: "source connection");
1022: }
1023: debug3_f("destination in %d out %d pid %ld",
1024: remin2, remout2, (long)do_cmd_pid2);
1.228 djm 1025: throughlocal_sftp(conn2, conn, src, targ);
1.219 djm 1026: (void) close(remin2);
1027: (void) close(remout2);
1028: remin2 = remout2 = -1;
1029: if (waitpid(do_cmd_pid2, &status, 0) == -1)
1030: ++errs;
1031: else if (!WIFEXITED(status) ||
1032: WEXITSTATUS(status) != 0)
1033: ++errs;
1034: do_cmd_pid2 = -1;
1035: continue;
1036: } else {
1037: xasprintf(&bp, "%s -f %s%s", cmd,
1038: *src == '-' ? "-- " : "", src);
1.231 naddy 1039: if (do_cmd(ssh_program, host, suser, sport, 0,
1.219 djm 1040: bp, &remin, &remout, &do_cmd_pid) < 0)
1041: exit(1);
1042: free(bp);
1043: xasprintf(&bp, "%s -t %s%s", cmd,
1044: *targ == '-' ? "-- " : "", targ);
1045: if (do_cmd2(thost, tuser, tport, bp,
1046: remin, remout) < 0)
1047: exit(1);
1048: free(bp);
1049: (void) close(remin);
1050: (void) close(remout);
1051: remin = remout = -1;
1052: }
1.193 millert 1053: } else if (host) { /* standard remote to remote */
1.215 djm 1054: /*
1055: * Second remote user is passed to first remote side
1056: * via scp command-line. Ensure it contains no obvious
1057: * shell characters.
1058: */
1059: if (tuser != NULL && !okname(tuser)) {
1060: ++errs;
1061: continue;
1062: }
1.193 millert 1063: if (tport != -1 && tport != SSH_DEFAULT_PORT) {
1064: /* This would require the remote support URIs */
1065: fatal("target port not supported with two "
1.232 naddy 1066: "remote hosts and the -R option");
1.193 millert 1067: }
1068:
1.129 djm 1069: freeargs(&alist);
1070: addargs(&alist, "%s", ssh_program);
1071: addargs(&alist, "-x");
1.168 djm 1072: addargs(&alist, "-oClearAllForwardings=yes");
1.129 djm 1073: addargs(&alist, "-n");
1.168 djm 1074: for (j = 0; j < remote_remote_args.num; j++) {
1075: addargs(&alist, "%s",
1076: remote_remote_args.list[j]);
1077: }
1.193 millert 1078:
1079: if (sport != -1) {
1080: addargs(&alist, "-p");
1081: addargs(&alist, "%d", sport);
1082: }
1083: if (suser) {
1.129 djm 1084: addargs(&alist, "-l");
1085: addargs(&alist, "%s", suser);
1.23 markus 1086: }
1.165 guenther 1087: addargs(&alist, "--");
1.129 djm 1088: addargs(&alist, "%s", host);
1089: addargs(&alist, "%s", cmd);
1090: addargs(&alist, "%s", src);
1091: addargs(&alist, "%s%s%s:%s",
1092: tuser ? tuser : "", tuser ? "@" : "",
1093: thost, targ);
1094: if (do_local_cmd(&alist) != 0)
1.109 markus 1095: errs = 1;
1.18 markus 1096: } else { /* local to remote */
1.216 djm 1097: if (mode == MODE_SFTP) {
1098: if (remin == -1) {
1099: /* Connect to remote now */
1100: conn = do_sftp_connect(thost, tuser,
1.219 djm 1101: tport, sftp_direct,
1102: &remin, &remout, &do_cmd_pid);
1.216 djm 1103: if (conn == NULL) {
1104: fatal("Unable to open sftp "
1105: "connection");
1106: }
1107: }
1108:
1109: /* The protocol */
1.228 djm 1110: source_sftp(1, argv[i], targ, conn);
1.216 djm 1111: continue;
1112: }
1113: /* SCP */
1.1 deraadt 1114: if (remin == -1) {
1.171 djm 1115: xasprintf(&bp, "%s -t %s%s", cmd,
1116: *targ == '-' ? "-- " : "", targ);
1.231 naddy 1117: if (do_cmd(ssh_program, thost, tuser, tport, 0,
1118: bp, &remin, &remout, &do_cmd_pid) < 0)
1.18 markus 1119: exit(1);
1.1 deraadt 1120: if (response() < 0)
1121: exit(1);
1.173 djm 1122: free(bp);
1.1 deraadt 1123: }
1.18 markus 1124: source(1, argv + i);
1.1 deraadt 1125: }
1126: }
1.193 millert 1127: out:
1.228 djm 1128: if (mode == MODE_SFTP)
1.216 djm 1129: free(conn);
1.193 millert 1130: free(tuser);
1131: free(thost);
1132: free(targ);
1133: free(suser);
1134: free(host);
1135: free(src);
1.1 deraadt 1136: }
1137:
1138: void
1.216 djm 1139: tolocal(int argc, char **argv, enum scp_mode_e mode, char *sftp_direct)
1.1 deraadt 1140: {
1.193 millert 1141: char *bp, *host = NULL, *src = NULL, *suser = NULL;
1.129 djm 1142: arglist alist;
1.216 djm 1143: struct sftp_conn *conn = NULL;
1.193 millert 1144: int i, r, sport = -1;
1.129 djm 1145:
1146: memset(&alist, '\0', sizeof(alist));
1147: alist.list = NULL;
1.1 deraadt 1148:
1149: for (i = 0; i < argc - 1; i++) {
1.193 millert 1150: free(suser);
1151: free(host);
1152: free(src);
1.194 millert 1153: r = parse_scp_uri(argv[i], &suser, &host, &sport, &src);
1.193 millert 1154: if (r == -1) {
1.194 millert 1155: fmprintf(stderr, "%s: invalid uri\n", argv[i]);
1.193 millert 1156: ++errs;
1157: continue;
1158: }
1159: if (r != 0)
1160: parse_user_host_path(argv[i], &suser, &host, &src);
1161: if (suser != NULL && !okname(suser)) {
1162: ++errs;
1163: continue;
1164: }
1165: if (!host) { /* Local to local. */
1.129 djm 1166: freeargs(&alist);
1167: addargs(&alist, "%s", _PATH_CP);
1168: if (iamrecursive)
1169: addargs(&alist, "-r");
1170: if (pflag)
1171: addargs(&alist, "-p");
1.165 guenther 1172: addargs(&alist, "--");
1.129 djm 1173: addargs(&alist, "%s", argv[i]);
1174: addargs(&alist, "%s", argv[argc-1]);
1175: if (do_local_cmd(&alist))
1.1 deraadt 1176: ++errs;
1177: continue;
1178: }
1.193 millert 1179: /* Remote to local. */
1.216 djm 1180: if (mode == MODE_SFTP) {
1.219 djm 1181: conn = do_sftp_connect(host, suser, sport,
1182: sftp_direct, &remin, &remout, &do_cmd_pid);
1.216 djm 1183: if (conn == NULL) {
1.236 djm 1184: error("sftp connection failed");
1.216 djm 1185: ++errs;
1186: continue;
1187: }
1188:
1189: /* The protocol */
1190: sink_sftp(1, argv[argc - 1], src, conn);
1191:
1192: free(conn);
1193: (void) close(remin);
1194: (void) close(remout);
1195: remin = remout = -1;
1196: continue;
1197: }
1198: /* SCP */
1.171 djm 1199: xasprintf(&bp, "%s -f %s%s",
1200: cmd, *src == '-' ? "-- " : "", src);
1.231 naddy 1201: if (do_cmd(ssh_program, host, suser, sport, 0, bp,
1.219 djm 1202: &remin, &remout, &do_cmd_pid) < 0) {
1.173 djm 1203: free(bp);
1.18 markus 1204: ++errs;
1205: continue;
1.1 deraadt 1206: }
1.173 djm 1207: free(bp);
1.202 djm 1208: sink(1, argv + argc - 1, src);
1.18 markus 1209: (void) close(remin);
1.1 deraadt 1210: remin = remout = -1;
1211: }
1.193 millert 1212: free(suser);
1213: free(host);
1214: free(src);
1.1 deraadt 1215: }
1216:
1.228 djm 1217: /* Prepare remote path, handling ~ by assuming cwd is the homedir */
1.226 djm 1218: static char *
1.228 djm 1219: prepare_remote_path(struct sftp_conn *conn, const char *path)
1.226 djm 1220: {
1.242 djm 1221: size_t nslash;
1222:
1.228 djm 1223: /* Handle ~ prefixed paths */
1.242 djm 1224: if (*path == '\0' || strcmp(path, "~") == 0)
1225: return xstrdup(".");
1.228 djm 1226: if (*path != '~')
1227: return xstrdup(path);
1.242 djm 1228: if (strncmp(path, "~/", 2) == 0) {
1229: if ((nslash = strspn(path + 2, "/")) == strlen(path + 2))
1230: return xstrdup(".");
1231: return xstrdup(path + 2 + nslash);
1232: }
1.227 djm 1233: if (can_expand_path(conn))
1234: return do_expand_path(conn, path);
1.228 djm 1235: /* No protocol extension */
1.237 djm 1236: error("server expand-path extension is required "
1237: "for ~user paths in SFTP mode");
1.228 djm 1238: return NULL;
1.226 djm 1239: }
1240:
1.1 deraadt 1241: void
1.228 djm 1242: source_sftp(int argc, char *src, char *targ, struct sftp_conn *conn)
1.216 djm 1243: {
1244: char *target = NULL, *filename = NULL, *abs_dst = NULL;
1.243 djm 1245: int src_is_dir, target_is_dir;
1246: Attrib a;
1247: struct stat st;
1248:
1249: memset(&a, '\0', sizeof(a));
1250: if (stat(src, &st) != 0)
1251: fatal("stat local \"%s\": %s", src, strerror(errno));
1252: src_is_dir = S_ISDIR(st.st_mode);
1.216 djm 1253: if ((filename = basename(src)) == NULL)
1.243 djm 1254: fatal("basename \"%s\": %s", src, strerror(errno));
1.216 djm 1255:
1256: /*
1257: * No need to glob here - the local shell already took care of
1258: * the expansions
1259: */
1.228 djm 1260: if ((target = prepare_remote_path(conn, targ)) == NULL)
1.226 djm 1261: cleanup_exit(255);
1.216 djm 1262: target_is_dir = remote_is_dir(conn, target);
1263: if (targetshouldbedirectory && !target_is_dir) {
1.243 djm 1264: debug("target directory \"%s\" does not exist", target);
1265: a.flags = SSH2_FILEXFER_ATTR_PERMISSIONS;
1266: a.perm = st.st_mode | 0700; /* ensure writable */
1267: if (do_mkdir(conn, target, &a, 1) != 0)
1268: cleanup_exit(255); /* error already logged */
1269: target_is_dir = 1;
1.216 djm 1270: }
1271: if (target_is_dir)
1272: abs_dst = path_append(target, filename);
1273: else {
1274: abs_dst = target;
1275: target = NULL;
1276: }
1277: debug3_f("copying local %s to remote %s", src, abs_dst);
1278:
1.243 djm 1279: if (src_is_dir && iamrecursive) {
1.220 djm 1280: if (upload_dir(conn, src, abs_dst, pflag,
1.248 djm 1281: SFTP_PROGRESS_ONLY, 0, 0, 1, 1) != 0) {
1.244 djm 1282: error("failed to upload directory %s to %s", src, targ);
1.234 djm 1283: errs = 1;
1.216 djm 1284: }
1.248 djm 1285: } else if (do_upload(conn, src, abs_dst, pflag, 0, 0, 1) != 0) {
1.244 djm 1286: error("failed to upload file %s to %s", src, targ);
1.234 djm 1287: errs = 1;
1288: }
1.216 djm 1289:
1290: free(abs_dst);
1291: free(target);
1292: }
1293:
1294: void
1.104 djm 1295: source(int argc, char **argv)
1.1 deraadt 1296: {
1297: struct stat stb;
1298: static BUF buffer;
1299: BUF *bp;
1.163 dtucker 1300: off_t i, statbytes;
1.180 djm 1301: size_t amt, nr;
1.125 dtucker 1302: int fd = -1, haderr, indx;
1.206 dtucker 1303: char *last, *name, buf[PATH_MAX + 128], encname[PATH_MAX];
1.65 deraadt 1304: int len;
1.1 deraadt 1305:
1306: for (indx = 0; indx < argc; ++indx) {
1.18 markus 1307: name = argv[indx];
1.11 aaron 1308: statbytes = 0;
1.65 deraadt 1309: len = strlen(name);
1310: while (len > 1 && name[len-1] == '/')
1311: name[--len] = '\0';
1.241 deraadt 1312: if ((fd = open(name, O_RDONLY|O_NONBLOCK)) == -1)
1.158 dtucker 1313: goto syserr;
1.85 markus 1314: if (strchr(name, '\n') != NULL) {
1.158 dtucker 1315: strnvis(encname, name, sizeof(encname), VIS_NL);
1316: name = encname;
1.85 markus 1317: }
1.205 deraadt 1318: if (fstat(fd, &stb) == -1) {
1.1 deraadt 1319: syserr: run_err("%s: %s", name, strerror(errno));
1320: goto next;
1321: }
1.163 dtucker 1322: if (stb.st_size < 0) {
1323: run_err("%s: %s", name, "Negative file size");
1324: goto next;
1325: }
1.157 djm 1326: unset_nonblock(fd);
1.1 deraadt 1327: switch (stb.st_mode & S_IFMT) {
1328: case S_IFREG:
1329: break;
1330: case S_IFDIR:
1331: if (iamrecursive) {
1332: rsource(name, &stb);
1333: goto next;
1334: }
1335: /* FALLTHROUGH */
1336: default:
1337: run_err("%s: not a regular file", name);
1338: goto next;
1339: }
1340: if ((last = strrchr(name, '/')) == NULL)
1341: last = name;
1342: else
1343: ++last;
1.11 aaron 1344: curfile = last;
1.1 deraadt 1345: if (pflag) {
1.176 guenther 1346: if (do_times(remout, verbose_mode, &stb) < 0)
1.1 deraadt 1347: goto next;
1348: }
1349: #define FILEMODEMASK (S_ISUID|S_ISGID|S_IRWXU|S_IRWXG|S_IRWXO)
1.61 markus 1350: snprintf(buf, sizeof buf, "C%04o %lld %s\n",
1.47 markus 1351: (u_int) (stb.st_mode & FILEMODEMASK),
1.62 markus 1352: (long long)stb.st_size, last);
1.186 schwarze 1353: if (verbose_mode)
1354: fmprintf(stderr, "Sending file modes: %s", buf);
1.107 deraadt 1355: (void) atomicio(vwrite, remout, buf, strlen(buf));
1.1 deraadt 1356: if (response() < 0)
1357: goto next;
1.161 djm 1358: if ((bp = allocbuf(&buffer, fd, COPY_BUFLEN)) == NULL) {
1.127 deraadt 1359: next: if (fd != -1) {
1360: (void) close(fd);
1361: fd = -1;
1362: }
1.1 deraadt 1363: continue;
1364: }
1.97 fgsch 1365: if (showprogress)
1366: start_progress_meter(curfile, stb.st_size, &statbytes);
1.161 djm 1367: set_nonblock(remout);
1.1 deraadt 1368: for (haderr = i = 0; i < stb.st_size; i += bp->cnt) {
1369: amt = bp->cnt;
1.163 dtucker 1370: if (i + (off_t)amt > stb.st_size)
1.1 deraadt 1371: amt = stb.st_size - i;
1372: if (!haderr) {
1.180 djm 1373: if ((nr = atomicio(read, fd,
1374: bp->buf, amt)) != amt) {
1.122 avsm 1375: haderr = errno;
1.180 djm 1376: memset(bp->buf + nr, 0, amt - nr);
1377: }
1.1 deraadt 1378: }
1.161 djm 1379: /* Keep writing after error to retain sync */
1380: if (haderr) {
1381: (void)atomicio(vwrite, remout, bp->buf, amt);
1.180 djm 1382: memset(bp->buf, 0, amt);
1.161 djm 1383: continue;
1.1 deraadt 1384: }
1.167 djm 1385: if (atomicio6(vwrite, remout, bp->buf, amt, scpio,
1.161 djm 1386: &statbytes) != amt)
1387: haderr = errno;
1.1 deraadt 1388: }
1.161 djm 1389: unset_nonblock(remout);
1.4 aaron 1390:
1.127 deraadt 1391: if (fd != -1) {
1.205 deraadt 1392: if (close(fd) == -1 && !haderr)
1.127 deraadt 1393: haderr = errno;
1394: fd = -1;
1395: }
1.1 deraadt 1396: if (!haderr)
1.107 deraadt 1397: (void) atomicio(vwrite, remout, "", 1);
1.1 deraadt 1398: else
1399: run_err("%s: %s", name, strerror(haderr));
1.18 markus 1400: (void) response();
1.185 dtucker 1401: if (showprogress)
1402: stop_progress_meter();
1.1 deraadt 1403: }
1404: }
1405:
1406: void
1.104 djm 1407: rsource(char *name, struct stat *statp)
1.1 deraadt 1408: {
1409: DIR *dirp;
1410: struct dirent *dp;
1.181 deraadt 1411: char *last, *vect[1], path[PATH_MAX];
1.1 deraadt 1412:
1413: if (!(dirp = opendir(name))) {
1414: run_err("%s: %s", name, strerror(errno));
1415: return;
1416: }
1417: last = strrchr(name, '/');
1.183 mmcc 1418: if (last == NULL)
1.1 deraadt 1419: last = name;
1420: else
1421: last++;
1422: if (pflag) {
1.176 guenther 1423: if (do_times(remout, verbose_mode, statp) < 0) {
1.1 deraadt 1424: closedir(dirp);
1425: return;
1426: }
1427: }
1.55 deraadt 1428: (void) snprintf(path, sizeof path, "D%04o %d %.1024s\n",
1.47 markus 1429: (u_int) (statp->st_mode & FILEMODEMASK), 0, last);
1.18 markus 1430: if (verbose_mode)
1.186 schwarze 1431: fmprintf(stderr, "Entering directory: %s", path);
1.107 deraadt 1432: (void) atomicio(vwrite, remout, path, strlen(path));
1.1 deraadt 1433: if (response() < 0) {
1434: closedir(dirp);
1435: return;
1436: }
1.63 stevesk 1437: while ((dp = readdir(dirp)) != NULL) {
1.1 deraadt 1438: if (dp->d_ino == 0)
1439: continue;
1440: if (!strcmp(dp->d_name, ".") || !strcmp(dp->d_name, ".."))
1441: continue;
1442: if (strlen(name) + 1 + strlen(dp->d_name) >= sizeof(path) - 1) {
1443: run_err("%s/%s: name too long", name, dp->d_name);
1444: continue;
1445: }
1.55 deraadt 1446: (void) snprintf(path, sizeof path, "%s/%s", name, dp->d_name);
1.1 deraadt 1447: vect[0] = path;
1448: source(1, vect);
1449: }
1.18 markus 1450: (void) closedir(dirp);
1.107 deraadt 1451: (void) atomicio(vwrite, remout, "E\n", 2);
1.18 markus 1452: (void) response();
1.1 deraadt 1453: }
1454:
1.216 djm 1455: void
1456: sink_sftp(int argc, char *dst, const char *src, struct sftp_conn *conn)
1457: {
1458: char *abs_src = NULL;
1459: char *abs_dst = NULL;
1460: glob_t g;
1.228 djm 1461: char *filename, *tmp = NULL;
1.243 djm 1462: int i, r, err = 0, dst_is_dir;
1463: struct stat st;
1.216 djm 1464:
1.226 djm 1465: memset(&g, 0, sizeof(g));
1.243 djm 1466:
1.216 djm 1467: /*
1468: * Here, we need remote glob as SFTP can not depend on remote shell
1469: * expansions
1470: */
1.228 djm 1471: if ((abs_src = prepare_remote_path(conn, src)) == NULL) {
1.226 djm 1472: err = -1;
1473: goto out;
1474: }
1.216 djm 1475:
1476: debug3_f("copying remote %s to local %s", abs_src, dst);
1.249 ! djm 1477: if ((r = remote_glob(conn, abs_src, GLOB_NOCHECK|GLOB_MARK,
! 1478: NULL, &g)) != 0) {
1.216 djm 1479: if (r == GLOB_NOSPACE)
1.244 djm 1480: error("%s: too many glob matches", src);
1.216 djm 1481: else
1.244 djm 1482: error("%s: %s", src, strerror(ENOENT));
1.216 djm 1483: err = -1;
1484: goto out;
1485: }
1486:
1.249 ! djm 1487: /* Did we actually get any matches back from the glob? */
! 1488: if (g.gl_matchc == 0 && g.gl_pathc == 1 && g.gl_pathv[0] != 0) {
! 1489: /*
! 1490: * If nothing matched but a path returned, then it's probably
! 1491: * a GLOB_NOCHECK result. Check whether the unglobbed path
! 1492: * exists so we can give a nice error message early.
! 1493: */
! 1494: if (do_stat(conn, g.gl_pathv[0], 1) == NULL) {
! 1495: error("%s: %s", src, strerror(ENOENT));
! 1496: err = -1;
! 1497: goto out;
! 1498: }
! 1499: }
! 1500:
1.243 djm 1501: if ((r = stat(dst, &st)) != 0)
1502: debug2_f("stat local \"%s\": %s", dst, strerror(errno));
1503: dst_is_dir = r == 0 && S_ISDIR(st.st_mode);
1504:
1505: if (g.gl_matchc > 1 && !dst_is_dir) {
1506: if (r == 0) {
1507: error("Multiple files match pattern, but destination "
1508: "\"%s\" is not a directory", dst);
1509: err = -1;
1510: goto out;
1511: }
1512: debug2_f("creating destination \"%s\"", dst);
1513: if (mkdir(dst, 0777) != 0) {
1514: error("local mkdir \"%s\": %s", dst, strerror(errno));
1515: err = -1;
1516: goto out;
1517: }
1518: dst_is_dir = 1;
1.216 djm 1519: }
1520:
1521: for (i = 0; g.gl_pathv[i] && !interrupted; i++) {
1522: tmp = xstrdup(g.gl_pathv[i]);
1523: if ((filename = basename(tmp)) == NULL) {
1524: error("basename %s: %s", tmp, strerror(errno));
1525: err = -1;
1526: goto out;
1527: }
1528:
1.243 djm 1529: if (dst_is_dir)
1.216 djm 1530: abs_dst = path_append(dst, filename);
1531: else
1532: abs_dst = xstrdup(dst);
1533:
1534: debug("Fetching %s to %s\n", g.gl_pathv[i], abs_dst);
1535: if (globpath_is_dir(g.gl_pathv[i]) && iamrecursive) {
1536: if (download_dir(conn, g.gl_pathv[i], abs_dst, NULL,
1.248 djm 1537: pflag, SFTP_PROGRESS_ONLY, 0, 0, 1, 1) == -1)
1.216 djm 1538: err = -1;
1539: } else {
1540: if (do_download(conn, g.gl_pathv[i], abs_dst, NULL,
1.248 djm 1541: pflag, 0, 0, 1) == -1)
1.216 djm 1542: err = -1;
1543: }
1544: free(abs_dst);
1545: abs_dst = NULL;
1.217 dtucker 1546: free(tmp);
1547: tmp = NULL;
1.216 djm 1548: }
1549:
1550: out:
1551: free(abs_src);
1.217 dtucker 1552: free(tmp);
1.216 djm 1553: globfree(&g);
1.235 djm 1554: if (err == -1)
1.234 djm 1555: errs = 1;
1.216 djm 1556: }
1557:
1558:
1.189 millert 1559: #define TYPE_OVERFLOW(type, val) \
1560: ((sizeof(type) == 4 && (val) > INT32_MAX) || \
1561: (sizeof(type) == 8 && (val) > INT64_MAX) || \
1562: (sizeof(type) != 4 && sizeof(type) != 8))
1563:
1.1 deraadt 1564: void
1.202 djm 1565: sink(int argc, char **argv, const char *src)
1.1 deraadt 1566: {
1567: static BUF buffer;
1568: struct stat stb;
1569: BUF *bp;
1.122 avsm 1570: off_t i;
1.124 djm 1571: size_t j, count;
1.140 deraadt 1572: int amt, exists, first, ofd;
1573: mode_t mode, omode, mask;
1.97 fgsch 1574: off_t size, statbytes;
1.176 guenther 1575: unsigned long long ull;
1.209 djm 1576: int setimes, targisdir, wrerr;
1.186 schwarze 1577: char ch, *cp, *np, *targ, *why, *vect[1], buf[2048], visbuf[2048];
1.204 djm 1578: char **patterns = NULL;
1579: size_t n, npatterns = 0;
1.40 markus 1580: struct timeval tv[2];
1.1 deraadt 1581:
1.66 stevesk 1582: #define atime tv[0]
1583: #define mtime tv[1]
1.118 deraadt 1584: #define SCREWUP(str) { why = str; goto screwup; }
1.1 deraadt 1585:
1.189 millert 1586: if (TYPE_OVERFLOW(time_t, 0) || TYPE_OVERFLOW(off_t, 0))
1587: SCREWUP("Unexpected off_t/time_t size");
1588:
1.1 deraadt 1589: setimes = targisdir = 0;
1590: mask = umask(0);
1591: if (!pflag)
1.18 markus 1592: (void) umask(mask);
1.1 deraadt 1593: if (argc != 1) {
1594: run_err("ambiguous target");
1595: exit(1);
1596: }
1597: targ = *argv;
1598: if (targetshouldbedirectory)
1599: verifydir(targ);
1.18 markus 1600:
1.107 deraadt 1601: (void) atomicio(vwrite, remout, "", 1);
1.1 deraadt 1602: if (stat(targ, &stb) == 0 && S_ISDIR(stb.st_mode))
1603: targisdir = 1;
1.202 djm 1604: if (src != NULL && !iamrecursive && !Tflag) {
1605: /*
1606: * Prepare to try to restrict incoming filenames to match
1607: * the requested destination file glob.
1608: */
1.204 djm 1609: if (brace_expand(src, &patterns, &npatterns) != 0)
1.213 djm 1610: fatal_f("could not expand pattern");
1.202 djm 1611: }
1.1 deraadt 1612: for (first = 1;; first = 0) {
1613: cp = buf;
1.122 avsm 1614: if (atomicio(read, remin, cp, 1) != 1)
1.204 djm 1615: goto done;
1.1 deraadt 1616: if (*cp++ == '\n')
1617: SCREWUP("unexpected <newline>");
1618: do {
1.30 deraadt 1619: if (atomicio(read, remin, &ch, sizeof(ch)) != sizeof(ch))
1.1 deraadt 1620: SCREWUP("lost connection");
1621: *cp++ = ch;
1622: } while (cp < &buf[sizeof(buf) - 1] && ch != '\n');
1623: *cp = 0;
1.114 markus 1624: if (verbose_mode)
1.186 schwarze 1625: fmprintf(stderr, "Sink: %s", buf);
1.1 deraadt 1626:
1627: if (buf[0] == '\01' || buf[0] == '\02') {
1.186 schwarze 1628: if (iamremote == 0) {
1629: (void) snmprintf(visbuf, sizeof(visbuf),
1630: NULL, "%s", buf + 1);
1.107 deraadt 1631: (void) atomicio(vwrite, STDERR_FILENO,
1.186 schwarze 1632: visbuf, strlen(visbuf));
1633: }
1.1 deraadt 1634: if (buf[0] == '\02')
1635: exit(1);
1636: ++errs;
1637: continue;
1638: }
1639: if (buf[0] == 'E') {
1.107 deraadt 1640: (void) atomicio(vwrite, remout, "", 1);
1.204 djm 1641: goto done;
1.1 deraadt 1642: }
1643: if (ch == '\n')
1644: *--cp = 0;
1645:
1646: cp = buf;
1647: if (*cp == 'T') {
1648: setimes++;
1649: cp++;
1.176 guenther 1650: if (!isdigit((unsigned char)*cp))
1651: SCREWUP("mtime.sec not present");
1652: ull = strtoull(cp, &cp, 10);
1.66 stevesk 1653: if (!cp || *cp++ != ' ')
1.1 deraadt 1654: SCREWUP("mtime.sec not delimited");
1.189 millert 1655: if (TYPE_OVERFLOW(time_t, ull))
1.176 guenther 1656: setimes = 0; /* out of range */
1657: mtime.tv_sec = ull;
1.66 stevesk 1658: mtime.tv_usec = strtol(cp, &cp, 10);
1.176 guenther 1659: if (!cp || *cp++ != ' ' || mtime.tv_usec < 0 ||
1660: mtime.tv_usec > 999999)
1.1 deraadt 1661: SCREWUP("mtime.usec not delimited");
1.176 guenther 1662: if (!isdigit((unsigned char)*cp))
1663: SCREWUP("atime.sec not present");
1664: ull = strtoull(cp, &cp, 10);
1.66 stevesk 1665: if (!cp || *cp++ != ' ')
1.1 deraadt 1666: SCREWUP("atime.sec not delimited");
1.189 millert 1667: if (TYPE_OVERFLOW(time_t, ull))
1.176 guenther 1668: setimes = 0; /* out of range */
1669: atime.tv_sec = ull;
1.66 stevesk 1670: atime.tv_usec = strtol(cp, &cp, 10);
1.176 guenther 1671: if (!cp || *cp++ != '\0' || atime.tv_usec < 0 ||
1672: atime.tv_usec > 999999)
1.1 deraadt 1673: SCREWUP("atime.usec not delimited");
1.107 deraadt 1674: (void) atomicio(vwrite, remout, "", 1);
1.1 deraadt 1675: continue;
1676: }
1677: if (*cp != 'C' && *cp != 'D') {
1678: /*
1679: * Check for the case "rcp remote:foo\* local:bar".
1680: * In this case, the line "No match." can be returned
1681: * by the shell before the rcp command on the remote is
1682: * executed so the ^Aerror_message convention isn't
1683: * followed.
1684: */
1685: if (first) {
1686: run_err("%s", cp);
1687: exit(1);
1688: }
1689: SCREWUP("expected control record");
1690: }
1691: mode = 0;
1692: for (++cp; cp < buf + 5; cp++) {
1693: if (*cp < '0' || *cp > '7')
1694: SCREWUP("bad mode");
1695: mode = (mode << 3) | (*cp - '0');
1696: }
1.197 dtucker 1697: if (!pflag)
1698: mode &= ~mask;
1.1 deraadt 1699: if (*cp++ != ' ')
1700: SCREWUP("mode not delimited");
1701:
1.188 millert 1702: if (!isdigit((unsigned char)*cp))
1703: SCREWUP("size not present");
1704: ull = strtoull(cp, &cp, 10);
1705: if (!cp || *cp++ != ' ')
1.1 deraadt 1706: SCREWUP("size not delimited");
1.189 millert 1707: if (TYPE_OVERFLOW(off_t, ull))
1.188 millert 1708: SCREWUP("size out of range");
1709: size = (off_t)ull;
1710:
1.198 djm 1711: if (*cp == '\0' || strchr(cp, '/') != NULL ||
1712: strcmp(cp, ".") == 0 || strcmp(cp, "..") == 0) {
1.114 markus 1713: run_err("error: unexpected filename: %s", cp);
1714: exit(1);
1715: }
1.204 djm 1716: if (npatterns > 0) {
1717: for (n = 0; n < npatterns; n++) {
1.249 ! djm 1718: if (strcmp(patterns[n], cp) == 0 ||
! 1719: fnmatch(patterns[n], cp, 0) == 0)
1.204 djm 1720: break;
1721: }
1722: if (n >= npatterns)
1723: SCREWUP("filename does not match request");
1724: }
1.1 deraadt 1725: if (targisdir) {
1726: static char *namebuf;
1.124 djm 1727: static size_t cursize;
1.1 deraadt 1728: size_t need;
1729:
1730: need = strlen(targ) + strlen(cp) + 250;
1.55 deraadt 1731: if (need > cursize) {
1.173 djm 1732: free(namebuf);
1.18 markus 1733: namebuf = xmalloc(need);
1.55 deraadt 1734: cursize = need;
1735: }
1736: (void) snprintf(namebuf, need, "%s%s%s", targ,
1.88 mouring 1737: strcmp(targ, "/") ? "/" : "", cp);
1.1 deraadt 1738: np = namebuf;
1739: } else
1740: np = targ;
1.12 aaron 1741: curfile = cp;
1.1 deraadt 1742: exists = stat(np, &stb) == 0;
1743: if (buf[0] == 'D') {
1744: int mod_flag = pflag;
1.114 markus 1745: if (!iamrecursive)
1746: SCREWUP("received directory without -r");
1.1 deraadt 1747: if (exists) {
1748: if (!S_ISDIR(stb.st_mode)) {
1749: errno = ENOTDIR;
1750: goto bad;
1751: }
1752: if (pflag)
1.18 markus 1753: (void) chmod(np, mode);
1.1 deraadt 1754: } else {
1.214 djm 1755: /* Handle copying from a read-only directory */
1.1 deraadt 1756: mod_flag = 1;
1.205 deraadt 1757: if (mkdir(np, mode | S_IRWXU) == -1)
1.1 deraadt 1758: goto bad;
1759: }
1.58 danh 1760: vect[0] = xstrdup(np);
1.202 djm 1761: sink(1, vect, src);
1.1 deraadt 1762: if (setimes) {
1763: setimes = 0;
1.210 djm 1764: (void) utimes(vect[0], tv);
1.1 deraadt 1765: }
1766: if (mod_flag)
1.59 deraadt 1767: (void) chmod(vect[0], mode);
1.173 djm 1768: free(vect[0]);
1.1 deraadt 1769: continue;
1770: }
1771: omode = mode;
1.174 dtucker 1772: mode |= S_IWUSR;
1.205 deraadt 1773: if ((ofd = open(np, O_WRONLY|O_CREAT, mode)) == -1) {
1.1 deraadt 1774: bad: run_err("%s: %s", np, strerror(errno));
1775: continue;
1776: }
1.107 deraadt 1777: (void) atomicio(vwrite, remout, "", 1);
1.161 djm 1778: if ((bp = allocbuf(&buffer, ofd, COPY_BUFLEN)) == NULL) {
1.18 markus 1779: (void) close(ofd);
1.1 deraadt 1780: continue;
1781: }
1782: cp = bp->buf;
1.209 djm 1783: wrerr = 0;
1.7 deraadt 1784:
1.209 djm 1785: /*
1786: * NB. do not use run_err() unless immediately followed by
1787: * exit() below as it may send a spurious reply that might
1788: * desyncronise us from the peer. Use note_err() instead.
1789: */
1.12 aaron 1790: statbytes = 0;
1.97 fgsch 1791: if (showprogress)
1792: start_progress_meter(curfile, size, &statbytes);
1.161 djm 1793: set_nonblock(remin);
1794: for (count = i = 0; i < size; i += bp->cnt) {
1795: amt = bp->cnt;
1.1 deraadt 1796: if (i + amt > size)
1797: amt = size - i;
1798: count += amt;
1799: do {
1.167 djm 1800: j = atomicio6(read, remin, cp, amt,
1801: scpio, &statbytes);
1.122 avsm 1802: if (j == 0) {
1.161 djm 1803: run_err("%s", j != EPIPE ?
1804: strerror(errno) :
1.63 stevesk 1805: "dropped connection");
1.1 deraadt 1806: exit(1);
1807: }
1808: amt -= j;
1809: cp += j;
1810: } while (amt > 0);
1.112 djm 1811:
1.1 deraadt 1812: if (count == bp->cnt) {
1813: /* Keep reading so we stay sync'd up. */
1.209 djm 1814: if (!wrerr) {
1.122 avsm 1815: if (atomicio(vwrite, ofd, bp->buf,
1816: count) != count) {
1.209 djm 1817: note_err("%s: %s", np,
1818: strerror(errno));
1819: wrerr = 1;
1.1 deraadt 1820: }
1821: }
1822: count = 0;
1823: cp = bp->buf;
1824: }
1825: }
1.161 djm 1826: unset_nonblock(remin);
1.209 djm 1827: if (count != 0 && !wrerr &&
1.122 avsm 1828: atomicio(vwrite, ofd, bp->buf, count) != count) {
1.209 djm 1829: note_err("%s: %s", np, strerror(errno));
1830: wrerr = 1;
1.1 deraadt 1831: }
1.209 djm 1832: if (!wrerr && (!exists || S_ISREG(stb.st_mode)) &&
1833: ftruncate(ofd, size) != 0)
1834: note_err("%s: truncate: %s", np, strerror(errno));
1.1 deraadt 1835: if (pflag) {
1836: if (exists || omode != mode)
1.116 dtucker 1837: if (fchmod(ofd, omode)) {
1.209 djm 1838: note_err("%s: set mode: %s",
1.63 stevesk 1839: np, strerror(errno));
1.116 dtucker 1840: }
1.1 deraadt 1841: } else {
1842: if (!exists && omode != mode)
1.116 dtucker 1843: if (fchmod(ofd, omode & ~mask)) {
1.209 djm 1844: note_err("%s: set mode: %s",
1.63 stevesk 1845: np, strerror(errno));
1.116 dtucker 1846: }
1.1 deraadt 1847: }
1.209 djm 1848: if (close(ofd) == -1)
1.211 millert 1849: note_err("%s: close: %s", np, strerror(errno));
1.18 markus 1850: (void) response();
1.185 dtucker 1851: if (showprogress)
1852: stop_progress_meter();
1.209 djm 1853: if (setimes && !wrerr) {
1.1 deraadt 1854: setimes = 0;
1.205 deraadt 1855: if (utimes(np, tv) == -1) {
1.209 djm 1856: note_err("%s: set times: %s",
1.63 stevesk 1857: np, strerror(errno));
1.1 deraadt 1858: }
1859: }
1.209 djm 1860: /* If no error was noted then signal success for this file */
1861: if (note_err(NULL) == 0)
1.107 deraadt 1862: (void) atomicio(vwrite, remout, "", 1);
1.1 deraadt 1863: }
1.204 djm 1864: done:
1865: for (n = 0; n < npatterns; n++)
1866: free(patterns[n]);
1867: free(patterns);
1868: return;
1.1 deraadt 1869: screwup:
1.204 djm 1870: for (n = 0; n < npatterns; n++)
1871: free(patterns[n]);
1872: free(patterns);
1.1 deraadt 1873: run_err("protocol error: %s", why);
1874: exit(1);
1.219 djm 1875: }
1876:
1877: void
1878: throughlocal_sftp(struct sftp_conn *from, struct sftp_conn *to,
1.228 djm 1879: char *src, char *targ)
1.219 djm 1880: {
1881: char *target = NULL, *filename = NULL, *abs_dst = NULL;
1.228 djm 1882: char *abs_src = NULL, *tmp = NULL;
1.219 djm 1883: glob_t g;
1884: int i, r, targetisdir, err = 0;
1885:
1886: if ((filename = basename(src)) == NULL)
1887: fatal("basename %s: %s", src, strerror(errno));
1888:
1.228 djm 1889: if ((abs_src = prepare_remote_path(from, src)) == NULL ||
1890: (target = prepare_remote_path(to, targ)) == NULL)
1.226 djm 1891: cleanup_exit(255);
1.219 djm 1892: memset(&g, 0, sizeof(g));
1893:
1894: targetisdir = remote_is_dir(to, target);
1895: if (!targetisdir && targetshouldbedirectory) {
1.244 djm 1896: error("%s: destination is not a directory", targ);
1.219 djm 1897: err = -1;
1898: goto out;
1899: }
1900:
1901: debug3_f("copying remote %s to remote %s", abs_src, target);
1.249 ! djm 1902: if ((r = remote_glob(from, abs_src, GLOB_NOCHECK|GLOB_MARK,
! 1903: NULL, &g)) != 0) {
1.219 djm 1904: if (r == GLOB_NOSPACE)
1.244 djm 1905: error("%s: too many glob matches", src);
1.219 djm 1906: else
1.244 djm 1907: error("%s: %s", src, strerror(ENOENT));
1.219 djm 1908: err = -1;
1909: goto out;
1.249 ! djm 1910: }
! 1911:
! 1912: /* Did we actually get any matches back from the glob? */
! 1913: if (g.gl_matchc == 0 && g.gl_pathc == 1 && g.gl_pathv[0] != 0) {
! 1914: /*
! 1915: * If nothing matched but a path returned, then it's probably
! 1916: * a GLOB_NOCHECK result. Check whether the unglobbed path
! 1917: * exists so we can give a nice error message early.
! 1918: */
! 1919: if (do_stat(from, g.gl_pathv[0], 1) == NULL) {
! 1920: error("%s: %s", src, strerror(ENOENT));
! 1921: err = -1;
! 1922: goto out;
! 1923: }
1.219 djm 1924: }
1925:
1926: for (i = 0; g.gl_pathv[i] && !interrupted; i++) {
1927: tmp = xstrdup(g.gl_pathv[i]);
1928: if ((filename = basename(tmp)) == NULL) {
1929: error("basename %s: %s", tmp, strerror(errno));
1930: err = -1;
1931: goto out;
1932: }
1933:
1934: if (targetisdir)
1935: abs_dst = path_append(target, filename);
1936: else
1937: abs_dst = xstrdup(target);
1938:
1939: debug("Fetching %s to %s\n", g.gl_pathv[i], abs_dst);
1940: if (globpath_is_dir(g.gl_pathv[i]) && iamrecursive) {
1941: if (crossload_dir(from, to, g.gl_pathv[i], abs_dst,
1.221 djm 1942: NULL, pflag, SFTP_PROGRESS_ONLY, 1) == -1)
1.219 djm 1943: err = -1;
1944: } else {
1945: if (do_crossload(from, to, g.gl_pathv[i], abs_dst, NULL,
1946: pflag) == -1)
1947: err = -1;
1948: }
1949: free(abs_dst);
1950: abs_dst = NULL;
1951: free(tmp);
1952: tmp = NULL;
1953: }
1954:
1955: out:
1956: free(abs_src);
1957: free(abs_dst);
1958: free(target);
1959: free(tmp);
1960: globfree(&g);
1961: if (err == -1)
1.235 djm 1962: errs = 1;
1.1 deraadt 1963: }
1964:
1965: int
1.86 itojun 1966: response(void)
1.1 deraadt 1967: {
1.186 schwarze 1968: char ch, *cp, resp, rbuf[2048], visbuf[2048];
1.1 deraadt 1969:
1.30 deraadt 1970: if (atomicio(read, remin, &resp, sizeof(resp)) != sizeof(resp))
1.1 deraadt 1971: lostconn(0);
1972:
1973: cp = rbuf;
1.18 markus 1974: switch (resp) {
1975: case 0: /* ok */
1.1 deraadt 1976: return (0);
1977: default:
1978: *cp++ = resp;
1979: /* FALLTHROUGH */
1.18 markus 1980: case 1: /* error, followed by error msg */
1981: case 2: /* fatal error, "" */
1.1 deraadt 1982: do {
1.30 deraadt 1983: if (atomicio(read, remin, &ch, sizeof(ch)) != sizeof(ch))
1.1 deraadt 1984: lostconn(0);
1985: *cp++ = ch;
1986: } while (cp < &rbuf[sizeof(rbuf) - 1] && ch != '\n');
1987:
1.186 schwarze 1988: if (!iamremote) {
1989: cp[-1] = '\0';
1990: (void) snmprintf(visbuf, sizeof(visbuf),
1991: NULL, "%s\n", rbuf);
1992: (void) atomicio(vwrite, STDERR_FILENO,
1993: visbuf, strlen(visbuf));
1994: }
1.1 deraadt 1995: ++errs;
1996: if (resp == 1)
1997: return (-1);
1998: exit(1);
1999: }
2000: /* NOTREACHED */
2001: }
2002:
2003: void
1.86 itojun 2004: usage(void)
1.1 deraadt 2005: {
1.83 stevesk 2006: (void) fprintf(stderr,
1.239 djm 2007: "usage: scp [-346ABCOpqRrsTv] [-c cipher] [-D sftp_server_path] [-F ssh_config]\n"
1.230 djm 2008: " [-i identity_file] [-J destination] [-l limit]\n"
1.224 djm 2009: " [-o ssh_option] [-P port] [-S program] source ... target\n");
1.1 deraadt 2010: exit(1);
2011: }
2012:
2013: void
1.18 markus 2014: run_err(const char *fmt,...)
1.1 deraadt 2015: {
2016: static FILE *fp;
2017: va_list ap;
2018:
2019: ++errs;
1.136 biorn 2020: if (fp != NULL || (remout != -1 && (fp = fdopen(remout, "w")))) {
2021: (void) fprintf(fp, "%c", 0x01);
2022: (void) fprintf(fp, "scp: ");
2023: va_start(ap, fmt);
2024: (void) vfprintf(fp, fmt, ap);
2025: va_end(ap);
2026: (void) fprintf(fp, "\n");
2027: (void) fflush(fp);
2028: }
1.18 markus 2029:
2030: if (!iamremote) {
1.73 markus 2031: va_start(ap, fmt);
1.186 schwarze 2032: vfmprintf(stderr, fmt, ap);
1.73 markus 2033: va_end(ap);
1.18 markus 2034: fprintf(stderr, "\n");
2035: }
1.209 djm 2036: }
2037:
2038: /*
2039: * Notes a sink error for sending at the end of a file transfer. Returns 0 if
2040: * no error has been noted or -1 otherwise. Use note_err(NULL) to flush
2041: * any active error at the end of the transfer.
2042: */
2043: int
2044: note_err(const char *fmt, ...)
2045: {
2046: static char *emsg;
2047: va_list ap;
2048:
2049: /* Replay any previously-noted error */
2050: if (fmt == NULL) {
2051: if (emsg == NULL)
2052: return 0;
2053: run_err("%s", emsg);
2054: free(emsg);
2055: emsg = NULL;
2056: return -1;
2057: }
2058:
2059: errs++;
2060: /* Prefer first-noted error */
2061: if (emsg != NULL)
2062: return -1;
2063:
2064: va_start(ap, fmt);
2065: vasnmprintf(&emsg, INT_MAX, NULL, fmt, ap);
2066: va_end(ap);
2067: return -1;
1.1 deraadt 2068: }
2069:
2070: void
1.104 djm 2071: verifydir(char *cp)
1.1 deraadt 2072: {
2073: struct stat stb;
2074:
2075: if (!stat(cp, &stb)) {
2076: if (S_ISDIR(stb.st_mode))
2077: return;
2078: errno = ENOTDIR;
2079: }
2080: run_err("%s: %s", cp, strerror(errno));
1.123 avsm 2081: killchild(0);
1.1 deraadt 2082: }
2083:
2084: int
1.104 djm 2085: okname(char *cp0)
1.1 deraadt 2086: {
2087: int c;
2088: char *cp;
2089:
2090: cp = cp0;
2091: do {
1.75 deraadt 2092: c = (int)*cp;
1.1 deraadt 2093: if (c & 0200)
2094: goto bad;
1.179 deraadt 2095: if (!isalpha(c) && !isdigit((unsigned char)c)) {
1.101 markus 2096: switch (c) {
2097: case '\'':
2098: case '"':
2099: case '`':
2100: case ' ':
2101: case '#':
2102: goto bad;
2103: default:
2104: break;
2105: }
2106: }
1.1 deraadt 2107: } while (*++cp);
2108: return (1);
2109:
1.186 schwarze 2110: bad: fmprintf(stderr, "%s: invalid user name\n", cp0);
1.1 deraadt 2111: return (0);
2112: }
2113:
2114: BUF *
1.104 djm 2115: allocbuf(BUF *bp, int fd, int blksize)
1.1 deraadt 2116: {
2117: size_t size;
2118: struct stat stb;
2119:
1.205 deraadt 2120: if (fstat(fd, &stb) == -1) {
1.1 deraadt 2121: run_err("fstat: %s", strerror(errno));
2122: return (0);
2123: }
1.187 deraadt 2124: size = ROUNDUP(stb.st_blksize, blksize);
1.95 markus 2125: if (size == 0)
1.18 markus 2126: size = blksize;
1.1 deraadt 2127: if (bp->cnt >= size)
2128: return (bp);
1.192 deraadt 2129: bp->buf = xrecallocarray(bp->buf, bp->cnt, size, 1);
1.1 deraadt 2130: bp->cnt = size;
2131: return (bp);
2132: }
2133:
2134: void
1.104 djm 2135: lostconn(int signo)
1.1 deraadt 2136: {
2137: if (!iamremote)
1.172 dtucker 2138: (void)write(STDERR_FILENO, "lost connection\n", 16);
1.74 markus 2139: if (signo)
2140: _exit(1);
2141: else
2142: exit(1);
1.225 djm 2143: }
2144:
2145: void
2146: cleanup_exit(int i)
2147: {
2148: if (remin > 0)
2149: close(remin);
2150: if (remout > 0)
2151: close(remout);
2152: if (remin2 > 0)
2153: close(remin2);
2154: if (remout2 > 0)
2155: close(remout2);
2156: if (do_cmd_pid > 0)
2157: waitpid(do_cmd_pid, NULL, 0);
2158: if (do_cmd_pid2 > 0)
2159: waitpid(do_cmd_pid2, NULL, 0);
2160: exit(i);
1.4 aaron 2161: }
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