Annotation of src/usr.bin/ssh/scp.c, Revision 1.238
1.238 ! djm 1: /* $OpenBSD: scp.c,v 1.237 2021/09/18 02:03:25 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:
1.231 naddy 115: int do_cmd(char *, char *, char *, int, int, char *, int *, int *, pid_t *);
116: int do_cmd2(char *, char *, int, char *, int, int);
1.11 aaron 117:
1.70 mouring 118: /* Struct for addargs */
119: arglist args;
1.168 djm 120: arglist remote_remote_args;
1.41 markus 121:
1.99 markus 122: /* Bandwidth limit */
1.167 djm 123: long long limit_kbps = 0;
124: struct bwlimit bwlimit;
1.99 markus 125:
1.11 aaron 126: /* Name of current file being transferred. */
127: char *curfile;
1.4 aaron 128:
1.1 deraadt 129: /* This is set to non-zero to enable verbose mode. */
1.17 markus 130: int verbose_mode = 0;
1.216 djm 131: LogLevel log_level = SYSLOG_LEVEL_INFO;
1.1 deraadt 132:
1.6 aaron 133: /* This is set to zero if the progressmeter is not desired. */
134: int showprogress = 1;
135:
1.169 markus 136: /*
137: * This is set to non-zero if remote-remote copy should be piped
138: * through this process.
139: */
1.229 djm 140: int throughlocal = 1;
1.169 markus 141:
1.193 millert 142: /* Non-standard port to use for the ssh connection or -1. */
143: int sshport = -1;
144:
1.34 deraadt 145: /* This is the program to execute for the secured connection. ("ssh" or -S) */
1.50 markus 146: char *ssh_program = _PATH_SSH_PROGRAM;
1.34 deraadt 147:
1.92 markus 148: /* This is used to store the pid of ssh_program */
1.105 djm 149: pid_t do_cmd_pid = -1;
1.219 djm 150: pid_t do_cmd_pid2 = -1;
1.105 djm 151:
1.216 djm 152: /* Needed for sftp */
153: volatile sig_atomic_t interrupted = 0;
154:
155: int remote_glob(struct sftp_conn *, const char *, int,
156: int (*)(const char *, int), glob_t *); /* proto for sftp-glob.c */
157:
1.105 djm 158: static void
159: killchild(int signo)
160: {
1.119 dtucker 161: if (do_cmd_pid > 1) {
1.123 avsm 162: kill(do_cmd_pid, signo ? signo : SIGTERM);
1.119 dtucker 163: waitpid(do_cmd_pid, NULL, 0);
164: }
1.219 djm 165: if (do_cmd_pid2 > 1) {
166: kill(do_cmd_pid2, signo ? signo : SIGTERM);
167: waitpid(do_cmd_pid2, NULL, 0);
168: }
1.105 djm 169:
1.123 avsm 170: if (signo)
171: _exit(1);
172: exit(1);
1.105 djm 173: }
1.92 markus 174:
1.166 millert 175: static void
1.219 djm 176: suspone(int pid, int signo)
1.166 millert 177: {
178: int status;
179:
1.219 djm 180: if (pid > 1) {
181: kill(pid, signo);
182: while (waitpid(pid, &status, WUNTRACED) == -1 &&
1.166 millert 183: errno == EINTR)
184: ;
185: }
186: }
187:
1.219 djm 188: static void
189: suspchild(int signo)
190: {
191: suspone(do_cmd_pid, signo);
192: suspone(do_cmd_pid2, signo);
193: kill(getpid(), SIGSTOP);
194: }
195:
1.129 djm 196: static int
197: do_local_cmd(arglist *a)
198: {
199: u_int i;
200: int status;
201: pid_t pid;
202:
203: if (a->num == 0)
204: fatal("do_local_cmd: no arguments");
205:
206: if (verbose_mode) {
207: fprintf(stderr, "Executing:");
208: for (i = 0; i < a->num; i++)
1.186 schwarze 209: fmprintf(stderr, " %s", a->list[i]);
1.129 djm 210: fprintf(stderr, "\n");
211: }
212: if ((pid = fork()) == -1)
213: fatal("do_local_cmd: fork: %s", strerror(errno));
214:
215: if (pid == 0) {
216: execvp(a->list[0], a->list);
217: perror(a->list[0]);
218: exit(1);
219: }
220:
221: do_cmd_pid = pid;
1.207 dtucker 222: ssh_signal(SIGTERM, killchild);
223: ssh_signal(SIGINT, killchild);
224: ssh_signal(SIGHUP, killchild);
1.129 djm 225:
226: while (waitpid(pid, &status, 0) == -1)
227: if (errno != EINTR)
228: fatal("do_local_cmd: waitpid: %s", strerror(errno));
229:
230: do_cmd_pid = -1;
231:
232: if (!WIFEXITED(status) || WEXITSTATUS(status) != 0)
233: return (-1);
234:
235: return (0);
236: }
237:
1.20 markus 238: /*
239: * This function executes the given command as the specified user on the
240: * given host. This returns < 0 if execution fails, and >= 0 otherwise. This
241: * assigns the input and output file descriptors on success.
242: */
1.1 deraadt 243:
1.27 markus 244: int
1.231 naddy 245: do_cmd(char *program, char *host, char *remuser, int port, int subsystem,
246: char *cmd, int *fdin, int *fdout, pid_t *pid)
1.1 deraadt 247: {
1.18 markus 248: int pin[2], pout[2], reserved[2];
249:
250: if (verbose_mode)
1.186 schwarze 251: fmprintf(stderr,
1.78 deraadt 252: "Executing: program %s host %s, user %s, command %s\n",
1.216 djm 253: program, host,
1.78 deraadt 254: remuser ? remuser : "(unspecified)", cmd);
1.18 markus 255:
1.193 millert 256: if (port == -1)
257: port = sshport;
258:
1.20 markus 259: /*
260: * Reserve two descriptors so that the real pipes won't get
261: * descriptors 0 and 1 because that will screw up dup2 below.
262: */
1.205 deraadt 263: if (pipe(reserved) == -1)
1.142 markus 264: fatal("pipe: %s", strerror(errno));
1.18 markus 265:
266: /* Create a socket pair for communicating with ssh. */
1.205 deraadt 267: if (pipe(pin) == -1)
1.18 markus 268: fatal("pipe: %s", strerror(errno));
1.205 deraadt 269: if (pipe(pout) == -1)
1.18 markus 270: fatal("pipe: %s", strerror(errno));
271:
272: /* Free the reserved descriptors. */
273: close(reserved[0]);
274: close(reserved[1]);
1.166 millert 275:
1.207 dtucker 276: ssh_signal(SIGTSTP, suspchild);
277: ssh_signal(SIGTTIN, suspchild);
278: ssh_signal(SIGTTOU, suspchild);
1.18 markus 279:
1.106 nino 280: /* Fork a child to execute the command on the remote host using ssh. */
1.219 djm 281: *pid = fork();
282: if (*pid == 0) {
1.18 markus 283: /* Child. */
284: close(pin[1]);
285: close(pout[0]);
286: dup2(pin[0], 0);
287: dup2(pout[1], 1);
288: close(pin[0]);
289: close(pout[1]);
290:
1.216 djm 291: replacearg(&args, 0, "%s", program);
1.193 millert 292: if (port != -1) {
293: addargs(&args, "-p");
294: addargs(&args, "%d", port);
295: }
1.165 guenther 296: if (remuser != NULL) {
297: addargs(&args, "-l");
298: addargs(&args, "%s", remuser);
299: }
1.231 naddy 300: if (subsystem)
301: addargs(&args, "-s");
1.165 guenther 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;
1.238 ! djm 425: enum scp_mode_e mode = MODE_SCP;
1.216 djm 426: char *sftp_direct = NULL;
1.126 djm 427:
428: /* Ensure that fds 0, 1 and 2 are open or directed to /dev/null */
429: sanitise_stdfd();
1.145 djm 430:
1.186 schwarze 431: setlocale(LC_CTYPE, "");
432:
1.145 djm 433: /* Copy argv, because we modify it */
1.216 djm 434: argv0 = argv[0];
1.187 deraadt 435: newargv = xcalloc(MAXIMUM(argc + 1, 1), sizeof(*newargv));
1.145 djm 436: for (n = 0; n < argc; n++)
437: newargv[n] = xstrdup(argv[n]);
438: argv = newargv;
1.1 deraadt 439:
1.235 djm 440: log_init(argv0, log_level, SYSLOG_FACILITY_USER, 2);
1.218 djm 441:
1.129 djm 442: memset(&args, '\0', sizeof(args));
1.168 djm 443: memset(&remote_remote_args, '\0', sizeof(remote_remote_args));
444: args.list = remote_remote_args.list = NULL;
1.129 djm 445: addargs(&args, "%s", ssh_program);
1.70 mouring 446: addargs(&args, "-x");
1.168 djm 447: addargs(&args, "-oPermitLocalCommand=no");
448: addargs(&args, "-oClearAllForwardings=yes");
1.195 djm 449: addargs(&args, "-oRemoteCommand=none");
450: addargs(&args, "-oRequestTTY=no");
1.41 markus 451:
1.202 djm 452: fflag = Tflag = tflag = 0;
453: while ((ch = getopt(argc, argv,
1.230 djm 454: "12346ABCTdfOpqRrstvD:F:J:M:P:S:c:i:l:o:")) != -1) {
1.18 markus 455: switch (ch) {
456: /* User-visible flags. */
1.100 markus 457: case '1':
1.190 djm 458: fatal("SSH protocol v.1 is no longer supported");
459: break;
1.100 markus 460: case '2':
1.190 djm 461: /* Ignored */
462: break;
1.212 djm 463: case 'A':
1.23 markus 464: case '4':
1.41 markus 465: case '6':
466: case 'C':
1.70 mouring 467: addargs(&args, "-%c", ch);
1.168 djm 468: addargs(&remote_remote_args, "-%c", ch);
1.41 markus 469: break;
1.216 djm 470: case 'D':
471: sftp_direct = optarg;
472: break;
1.169 markus 473: case '3':
474: throughlocal = 1;
475: break;
1.229 djm 476: case 'R':
477: throughlocal = 0;
478: break;
1.41 markus 479: case 'o':
480: case 'c':
481: case 'i':
1.83 stevesk 482: case 'F':
1.199 tb 483: case 'J':
1.168 djm 484: addargs(&remote_remote_args, "-%c", ch);
485: addargs(&remote_remote_args, "%s", optarg);
1.165 guenther 486: addargs(&args, "-%c", ch);
487: addargs(&args, "%s", optarg);
1.23 markus 488: break;
1.230 djm 489: case 'O':
490: mode = MODE_SCP;
491: break;
492: case 's':
493: mode = MODE_SFTP;
494: break;
1.41 markus 495: case 'P':
1.193 millert 496: sshport = a2port(optarg);
497: if (sshport <= 0)
498: fatal("bad port \"%s\"\n", optarg);
1.41 markus 499: break;
500: case 'B':
1.168 djm 501: addargs(&remote_remote_args, "-oBatchmode=yes");
502: addargs(&args, "-oBatchmode=yes");
1.23 markus 503: break;
1.99 markus 504: case 'l':
1.167 djm 505: limit_kbps = strtonum(optarg, 1, 100 * 1024 * 1024,
506: &errstr);
507: if (errstr != NULL)
1.99 markus 508: usage();
1.167 djm 509: limit_kbps *= 1024; /* kbps */
510: bandwidth_limit_init(&bwlimit, limit_kbps, COPY_BUFLEN);
1.99 markus 511: break;
1.1 deraadt 512: case 'p':
513: pflag = 1;
514: break;
515: case 'r':
516: iamrecursive = 1;
517: break;
1.34 deraadt 518: case 'S':
1.41 markus 519: ssh_program = xstrdup(optarg);
520: break;
521: case 'v':
1.72 markus 522: addargs(&args, "-v");
1.168 djm 523: addargs(&remote_remote_args, "-v");
1.216 djm 524: if (verbose_mode == 0)
525: log_level = SYSLOG_LEVEL_DEBUG1;
526: else if (log_level < SYSLOG_LEVEL_DEBUG3)
527: log_level++;
1.41 markus 528: verbose_mode = 1;
529: break;
530: case 'q':
1.111 dtucker 531: addargs(&args, "-q");
1.168 djm 532: addargs(&remote_remote_args, "-q");
1.41 markus 533: showprogress = 0;
1.34 deraadt 534: break;
535:
1.18 markus 536: /* Server options. */
1.1 deraadt 537: case 'd':
538: targetshouldbedirectory = 1;
539: break;
1.18 markus 540: case 'f': /* "from" */
1.1 deraadt 541: iamremote = 1;
542: fflag = 1;
543: break;
1.18 markus 544: case 't': /* "to" */
1.1 deraadt 545: iamremote = 1;
546: tflag = 1;
547: break;
1.202 djm 548: case 'T':
549: Tflag = 1;
550: break;
1.1 deraadt 551: default:
552: usage();
553: }
1.202 djm 554: }
1.1 deraadt 555: argc -= optind;
556: argv += optind;
557:
1.235 djm 558: log_init(argv0, log_level, SYSLOG_FACILITY_USER, 2);
1.216 djm 559:
1.212 djm 560: /* Do this last because we want the user to be able to override it */
561: addargs(&args, "-oForwardAgent=no");
562:
1.218 djm 563: if (iamremote)
564: mode = MODE_SCP;
1.216 djm 565:
1.1 deraadt 566: if ((pwd = getpwuid(userid = getuid())) == NULL)
1.108 deraadt 567: fatal("unknown user %u", (u_int) userid);
1.1 deraadt 568:
1.156 djm 569: if (!isatty(STDOUT_FILENO))
1.7 deraadt 570: showprogress = 0;
1.184 deraadt 571:
572: if (pflag) {
573: /* Cannot pledge: -p allows setuid/setgid files... */
574: } else {
575: if (pledge("stdio rpath wpath cpath fattr tty proc exec",
576: NULL) == -1) {
577: perror("pledge");
578: exit(1);
579: }
580: }
1.7 deraadt 581:
1.1 deraadt 582: remin = STDIN_FILENO;
583: remout = STDOUT_FILENO;
584:
1.52 stevesk 585: if (fflag) {
1.18 markus 586: /* Follow "protocol", send data. */
587: (void) response();
1.1 deraadt 588: source(argc, argv);
589: exit(errs != 0);
590: }
1.18 markus 591: if (tflag) {
592: /* Receive data. */
1.202 djm 593: sink(argc, argv, NULL);
1.1 deraadt 594: exit(errs != 0);
595: }
596: if (argc < 2)
597: usage();
598: if (argc > 2)
599: targetshouldbedirectory = 1;
600:
601: remin = remout = -1;
1.92 markus 602: do_cmd_pid = -1;
1.1 deraadt 603: /* Command to be executed on remote system using "ssh". */
1.55 deraadt 604: (void) snprintf(cmd, sizeof cmd, "scp%s%s%s%s",
605: verbose_mode ? " -v" : "",
1.35 deraadt 606: iamrecursive ? " -r" : "", pflag ? " -p" : "",
607: targetshouldbedirectory ? " -d" : "");
1.1 deraadt 608:
1.207 dtucker 609: (void) ssh_signal(SIGPIPE, lostconn);
1.1 deraadt 610:
1.193 millert 611: if (colon(argv[argc - 1])) /* Dest is remote host. */
1.216 djm 612: toremote(argc, argv, mode, sftp_direct);
1.1 deraadt 613: else {
614: if (targetshouldbedirectory)
615: verifydir(argv[argc - 1]);
1.216 djm 616: tolocal(argc, argv, mode, sftp_direct); /* Dest is local host. */
1.92 markus 617: }
618: /*
619: * Finally check the exit status of the ssh process, if one was forked
1.164 stevesk 620: * and no error has occurred yet
1.92 markus 621: */
1.234 djm 622: if (do_cmd_pid != -1 && (mode == MODE_SFTP || errs == 0)) {
1.92 markus 623: if (remin != -1)
624: (void) close(remin);
625: if (remout != -1)
626: (void) close(remout);
627: if (waitpid(do_cmd_pid, &status, 0) == -1)
628: errs = 1;
629: else {
630: if (!WIFEXITED(status) || WEXITSTATUS(status) != 0)
631: errs = 1;
632: }
1.1 deraadt 633: }
634: exit(errs != 0);
635: }
636:
1.167 djm 637: /* Callback from atomicio6 to update progress meter and limit bandwidth */
638: static int
639: scpio(void *_cnt, size_t s)
1.161 djm 640: {
1.167 djm 641: off_t *cnt = (off_t *)_cnt;
642:
643: *cnt += s;
1.201 dtucker 644: refresh_progress_meter(0);
1.167 djm 645: if (limit_kbps > 0)
646: bandwidth_limit(&bwlimit, s);
647: return 0;
1.161 djm 648: }
649:
1.176 guenther 650: static int
651: do_times(int fd, int verb, const struct stat *sb)
652: {
653: /* strlen(2^64) == 20; strlen(10^6) == 7 */
654: char buf[(20 + 7 + 2) * 2 + 2];
655:
656: (void)snprintf(buf, sizeof(buf), "T%llu 0 %llu 0\n",
657: (unsigned long long) (sb->st_mtime < 0 ? 0 : sb->st_mtime),
658: (unsigned long long) (sb->st_atime < 0 ? 0 : sb->st_atime));
659: if (verb) {
660: fprintf(stderr, "File mtime %lld atime %lld\n",
661: (long long)sb->st_mtime, (long long)sb->st_atime);
662: fprintf(stderr, "Sending file timestamps: %s", buf);
663: }
664: (void) atomicio(vwrite, fd, buf, strlen(buf));
665: return (response());
666: }
667:
1.194 millert 668: static int
669: parse_scp_uri(const char *uri, char **userp, char **hostp, int *portp,
1.214 djm 670: char **pathp)
1.194 millert 671: {
672: int r;
673:
674: r = parse_uri("scp", uri, userp, hostp, portp, pathp);
675: if (r == 0 && *pathp == NULL)
676: *pathp = xstrdup(".");
677: return r;
678: }
679:
1.204 djm 680: /* Appends a string to an array; returns 0 on success, -1 on alloc failure */
681: static int
682: append(char *cp, char ***ap, size_t *np)
683: {
684: char **tmp;
685:
686: if ((tmp = reallocarray(*ap, *np + 1, sizeof(*tmp))) == NULL)
687: return -1;
688: tmp[(*np)] = cp;
689: (*np)++;
690: *ap = tmp;
691: return 0;
692: }
693:
694: /*
695: * Finds the start and end of the first brace pair in the pattern.
696: * returns 0 on success or -1 for invalid patterns.
697: */
698: static int
699: find_brace(const char *pattern, int *startp, int *endp)
700: {
701: int i;
702: int in_bracket, brace_level;
703:
704: *startp = *endp = -1;
705: in_bracket = brace_level = 0;
706: for (i = 0; i < INT_MAX && *endp < 0 && pattern[i] != '\0'; i++) {
707: switch (pattern[i]) {
708: case '\\':
709: /* skip next character */
710: if (pattern[i + 1] != '\0')
711: i++;
712: break;
713: case '[':
714: in_bracket = 1;
715: break;
716: case ']':
717: in_bracket = 0;
718: break;
719: case '{':
720: if (in_bracket)
721: break;
722: if (pattern[i + 1] == '}') {
723: /* Protect a single {}, for find(1), like csh */
724: i++; /* skip */
725: break;
726: }
727: if (*startp == -1)
728: *startp = i;
729: brace_level++;
730: break;
731: case '}':
732: if (in_bracket)
733: break;
734: if (*startp < 0) {
735: /* Unbalanced brace */
736: return -1;
737: }
738: if (--brace_level <= 0)
739: *endp = i;
740: break;
741: }
742: }
743: /* unbalanced brackets/braces */
744: if (*endp < 0 && (*startp >= 0 || in_bracket))
745: return -1;
746: return 0;
747: }
748:
749: /*
750: * Assembles and records a successfully-expanded pattern, returns -1 on
751: * alloc failure.
752: */
753: static int
754: emit_expansion(const char *pattern, int brace_start, int brace_end,
755: int sel_start, int sel_end, char ***patternsp, size_t *npatternsp)
756: {
757: char *cp;
758: int o = 0, tail_len = strlen(pattern + brace_end + 1);
759:
760: if ((cp = malloc(brace_start + (sel_end - sel_start) +
761: tail_len + 1)) == NULL)
762: return -1;
763:
764: /* Pattern before initial brace */
765: if (brace_start > 0) {
766: memcpy(cp, pattern, brace_start);
767: o = brace_start;
768: }
769: /* Current braced selection */
770: if (sel_end - sel_start > 0) {
771: memcpy(cp + o, pattern + sel_start,
772: sel_end - sel_start);
773: o += sel_end - sel_start;
774: }
775: /* Remainder of pattern after closing brace */
776: if (tail_len > 0) {
777: memcpy(cp + o, pattern + brace_end + 1, tail_len);
778: o += tail_len;
779: }
780: cp[o] = '\0';
781: if (append(cp, patternsp, npatternsp) != 0) {
782: free(cp);
783: return -1;
784: }
785: return 0;
786: }
787:
788: /*
789: * Expand the first encountered brace in pattern, appending the expanded
790: * patterns it yielded to the *patternsp array.
791: *
792: * Returns 0 on success or -1 on allocation failure.
793: *
794: * Signals whether expansion was performed via *expanded and whether
795: * pattern was invalid via *invalid.
796: */
797: static int
798: brace_expand_one(const char *pattern, char ***patternsp, size_t *npatternsp,
799: int *expanded, int *invalid)
800: {
801: int i;
802: int in_bracket, brace_start, brace_end, brace_level;
803: int sel_start, sel_end;
804:
805: *invalid = *expanded = 0;
806:
807: if (find_brace(pattern, &brace_start, &brace_end) != 0) {
808: *invalid = 1;
809: return 0;
810: } else if (brace_start == -1)
811: return 0;
812:
813: in_bracket = brace_level = 0;
814: for (i = sel_start = brace_start + 1; i < brace_end; i++) {
815: switch (pattern[i]) {
816: case '{':
817: if (in_bracket)
818: break;
819: brace_level++;
820: break;
821: case '}':
822: if (in_bracket)
823: break;
824: brace_level--;
825: break;
826: case '[':
827: in_bracket = 1;
828: break;
829: case ']':
830: in_bracket = 0;
831: break;
832: case '\\':
833: if (i < brace_end - 1)
834: i++; /* skip */
835: break;
836: }
837: if (pattern[i] == ',' || i == brace_end - 1) {
838: if (in_bracket || brace_level > 0)
839: continue;
840: /* End of a selection, emit an expanded pattern */
841:
842: /* Adjust end index for last selection */
843: sel_end = (i == brace_end - 1) ? brace_end : i;
844: if (emit_expansion(pattern, brace_start, brace_end,
845: sel_start, sel_end, patternsp, npatternsp) != 0)
846: return -1;
847: /* move on to the next selection */
848: sel_start = i + 1;
849: continue;
850: }
851: }
852: if (in_bracket || brace_level > 0) {
853: *invalid = 1;
854: return 0;
855: }
856: /* success */
857: *expanded = 1;
858: return 0;
859: }
860:
861: /* Expand braces from pattern. Returns 0 on success, -1 on failure */
862: static int
863: brace_expand(const char *pattern, char ***patternsp, size_t *npatternsp)
864: {
865: char *cp, *cp2, **active = NULL, **done = NULL;
866: size_t i, nactive = 0, ndone = 0;
867: int ret = -1, invalid = 0, expanded = 0;
868:
869: *patternsp = NULL;
870: *npatternsp = 0;
871:
872: /* Start the worklist with the original pattern */
873: if ((cp = strdup(pattern)) == NULL)
874: return -1;
875: if (append(cp, &active, &nactive) != 0) {
876: free(cp);
877: return -1;
878: }
879: while (nactive > 0) {
880: cp = active[nactive - 1];
881: nactive--;
882: if (brace_expand_one(cp, &active, &nactive,
883: &expanded, &invalid) == -1) {
884: free(cp);
885: goto fail;
886: }
887: if (invalid)
1.213 djm 888: fatal_f("invalid brace pattern \"%s\"", cp);
1.204 djm 889: if (expanded) {
890: /*
891: * Current entry expanded to new entries on the
892: * active list; discard the progenitor pattern.
893: */
894: free(cp);
895: continue;
896: }
897: /*
898: * Pattern did not expand; append the finename component to
899: * the completed list
900: */
901: if ((cp2 = strrchr(cp, '/')) != NULL)
902: *cp2++ = '\0';
903: else
904: cp2 = cp;
905: if (append(xstrdup(cp2), &done, &ndone) != 0) {
906: free(cp);
907: goto fail;
908: }
909: free(cp);
910: }
911: /* success */
912: *patternsp = done;
913: *npatternsp = ndone;
914: done = NULL;
915: ndone = 0;
916: ret = 0;
917: fail:
918: for (i = 0; i < nactive; i++)
919: free(active[i]);
920: free(active);
921: for (i = 0; i < ndone; i++)
922: free(done[i]);
923: free(done);
924: return ret;
925: }
926:
1.216 djm 927: static struct sftp_conn *
1.219 djm 928: do_sftp_connect(char *host, char *user, int port, char *sftp_direct,
929: int *reminp, int *remoutp, int *pidp)
1.216 djm 930: {
931: if (sftp_direct == NULL) {
1.231 naddy 932: if (do_cmd(ssh_program, host, user, port, 1, "sftp",
1.219 djm 933: reminp, remoutp, pidp) < 0)
1.216 djm 934: return NULL;
935:
936: } else {
937: args.list = NULL;
938: addargs(&args, "sftp-server");
1.231 naddy 939: if (do_cmd(sftp_direct, host, NULL, -1, 0, "sftp",
1.219 djm 940: reminp, remoutp, pidp) < 0)
1.216 djm 941: return NULL;
942: }
1.219 djm 943: return do_init(*reminp, *remoutp, 32768, 64, limit_kbps);
1.216 djm 944: }
945:
1.1 deraadt 946: void
1.216 djm 947: toremote(int argc, char **argv, enum scp_mode_e mode, char *sftp_direct)
1.1 deraadt 948: {
1.193 millert 949: char *suser = NULL, *host = NULL, *src = NULL;
950: char *bp, *tuser, *thost, *targ;
951: int sport = -1, tport = -1;
1.219 djm 952: struct sftp_conn *conn = NULL, *conn2 = NULL;
1.129 djm 953: arglist alist;
1.219 djm 954: int i, r, status;
1.168 djm 955: u_int j;
1.129 djm 956:
957: memset(&alist, '\0', sizeof(alist));
958: alist.list = NULL;
1.1 deraadt 959:
1.193 millert 960: /* Parse target */
1.194 millert 961: r = parse_scp_uri(argv[argc - 1], &tuser, &thost, &tport, &targ);
962: if (r == -1) {
963: fmprintf(stderr, "%s: invalid uri\n", argv[argc - 1]);
964: ++errs;
965: goto out;
966: }
1.193 millert 967: if (r != 0) {
968: if (parse_user_host_path(argv[argc - 1], &tuser, &thost,
1.194 millert 969: &targ) == -1) {
970: fmprintf(stderr, "%s: invalid target\n", argv[argc - 1]);
971: ++errs;
1.193 millert 972: goto out;
1.194 millert 973: }
1.129 djm 974: }
975:
1.193 millert 976: /* Parse source files */
1.1 deraadt 977: for (i = 0; i < argc - 1; i++) {
1.193 millert 978: free(suser);
979: free(host);
980: free(src);
1.194 millert 981: r = parse_scp_uri(argv[i], &suser, &host, &sport, &src);
982: if (r == -1) {
983: fmprintf(stderr, "%s: invalid uri\n", argv[i]);
984: ++errs;
985: continue;
986: }
987: if (r != 0) {
1.193 millert 988: parse_user_host_path(argv[i], &suser, &host, &src);
1.194 millert 989: }
1.193 millert 990: if (suser != NULL && !okname(suser)) {
991: ++errs;
992: continue;
993: }
994: if (host && throughlocal) { /* extended remote to remote */
1.219 djm 995: if (mode == MODE_SFTP) {
996: if (remin == -1) {
997: /* Connect to dest now */
998: conn = do_sftp_connect(thost, tuser,
999: tport, sftp_direct,
1000: &remin, &remout, &do_cmd_pid);
1001: if (conn == NULL) {
1002: fatal("Unable to open "
1003: "destination connection");
1004: }
1005: debug3_f("origin in %d out %d pid %ld",
1006: remin, remout, (long)do_cmd_pid);
1007: }
1008: /*
1009: * XXX remember suser/host/sport and only
1010: * reconnect if they change between arguments.
1011: * would save reconnections for cases like
1012: * scp -3 hosta:/foo hosta:/bar hostb:
1013: */
1014: /* Connect to origin now */
1015: conn2 = do_sftp_connect(host, suser,
1016: sport, sftp_direct,
1017: &remin2, &remout2, &do_cmd_pid2);
1018: if (conn2 == NULL) {
1019: fatal("Unable to open "
1020: "source connection");
1021: }
1022: debug3_f("destination in %d out %d pid %ld",
1023: remin2, remout2, (long)do_cmd_pid2);
1.228 djm 1024: throughlocal_sftp(conn2, conn, src, targ);
1.219 djm 1025: (void) close(remin2);
1026: (void) close(remout2);
1027: remin2 = remout2 = -1;
1028: if (waitpid(do_cmd_pid2, &status, 0) == -1)
1029: ++errs;
1030: else if (!WIFEXITED(status) ||
1031: WEXITSTATUS(status) != 0)
1032: ++errs;
1033: do_cmd_pid2 = -1;
1034: continue;
1035: } else {
1036: xasprintf(&bp, "%s -f %s%s", cmd,
1037: *src == '-' ? "-- " : "", src);
1.231 naddy 1038: if (do_cmd(ssh_program, host, suser, sport, 0,
1.219 djm 1039: bp, &remin, &remout, &do_cmd_pid) < 0)
1040: exit(1);
1041: free(bp);
1042: xasprintf(&bp, "%s -t %s%s", cmd,
1043: *targ == '-' ? "-- " : "", targ);
1044: if (do_cmd2(thost, tuser, tport, bp,
1045: remin, remout) < 0)
1046: exit(1);
1047: free(bp);
1048: (void) close(remin);
1049: (void) close(remout);
1050: remin = remout = -1;
1051: }
1.193 millert 1052: } else if (host) { /* standard remote to remote */
1.215 djm 1053: /*
1054: * Second remote user is passed to first remote side
1055: * via scp command-line. Ensure it contains no obvious
1056: * shell characters.
1057: */
1058: if (tuser != NULL && !okname(tuser)) {
1059: ++errs;
1060: continue;
1061: }
1.193 millert 1062: if (tport != -1 && tport != SSH_DEFAULT_PORT) {
1063: /* This would require the remote support URIs */
1064: fatal("target port not supported with two "
1.232 naddy 1065: "remote hosts and the -R option");
1.193 millert 1066: }
1067:
1.129 djm 1068: freeargs(&alist);
1069: addargs(&alist, "%s", ssh_program);
1070: addargs(&alist, "-x");
1.168 djm 1071: addargs(&alist, "-oClearAllForwardings=yes");
1.129 djm 1072: addargs(&alist, "-n");
1.168 djm 1073: for (j = 0; j < remote_remote_args.num; j++) {
1074: addargs(&alist, "%s",
1075: remote_remote_args.list[j]);
1076: }
1.193 millert 1077:
1078: if (sport != -1) {
1079: addargs(&alist, "-p");
1080: addargs(&alist, "%d", sport);
1081: }
1082: if (suser) {
1.129 djm 1083: addargs(&alist, "-l");
1084: addargs(&alist, "%s", suser);
1.23 markus 1085: }
1.165 guenther 1086: addargs(&alist, "--");
1.129 djm 1087: addargs(&alist, "%s", host);
1088: addargs(&alist, "%s", cmd);
1089: addargs(&alist, "%s", src);
1090: addargs(&alist, "%s%s%s:%s",
1091: tuser ? tuser : "", tuser ? "@" : "",
1092: thost, targ);
1093: if (do_local_cmd(&alist) != 0)
1.109 markus 1094: errs = 1;
1.18 markus 1095: } else { /* local to remote */
1.216 djm 1096: if (mode == MODE_SFTP) {
1097: if (remin == -1) {
1098: /* Connect to remote now */
1099: conn = do_sftp_connect(thost, tuser,
1.219 djm 1100: tport, sftp_direct,
1101: &remin, &remout, &do_cmd_pid);
1.216 djm 1102: if (conn == NULL) {
1103: fatal("Unable to open sftp "
1104: "connection");
1105: }
1106: }
1107:
1108: /* The protocol */
1.228 djm 1109: source_sftp(1, argv[i], targ, conn);
1.216 djm 1110: continue;
1111: }
1112: /* SCP */
1.1 deraadt 1113: if (remin == -1) {
1.171 djm 1114: xasprintf(&bp, "%s -t %s%s", cmd,
1115: *targ == '-' ? "-- " : "", targ);
1.231 naddy 1116: if (do_cmd(ssh_program, thost, tuser, tport, 0,
1117: bp, &remin, &remout, &do_cmd_pid) < 0)
1.18 markus 1118: exit(1);
1.1 deraadt 1119: if (response() < 0)
1120: exit(1);
1.173 djm 1121: free(bp);
1.1 deraadt 1122: }
1.18 markus 1123: source(1, argv + i);
1.1 deraadt 1124: }
1125: }
1.193 millert 1126: out:
1.228 djm 1127: if (mode == MODE_SFTP)
1.216 djm 1128: free(conn);
1.193 millert 1129: free(tuser);
1130: free(thost);
1131: free(targ);
1132: free(suser);
1133: free(host);
1134: free(src);
1.1 deraadt 1135: }
1136:
1137: void
1.216 djm 1138: tolocal(int argc, char **argv, enum scp_mode_e mode, char *sftp_direct)
1.1 deraadt 1139: {
1.193 millert 1140: char *bp, *host = NULL, *src = NULL, *suser = NULL;
1.129 djm 1141: arglist alist;
1.216 djm 1142: struct sftp_conn *conn = NULL;
1.193 millert 1143: int i, r, sport = -1;
1.129 djm 1144:
1145: memset(&alist, '\0', sizeof(alist));
1146: alist.list = NULL;
1.1 deraadt 1147:
1148: for (i = 0; i < argc - 1; i++) {
1.193 millert 1149: free(suser);
1150: free(host);
1151: free(src);
1.194 millert 1152: r = parse_scp_uri(argv[i], &suser, &host, &sport, &src);
1.193 millert 1153: if (r == -1) {
1.194 millert 1154: fmprintf(stderr, "%s: invalid uri\n", argv[i]);
1.193 millert 1155: ++errs;
1156: continue;
1157: }
1158: if (r != 0)
1159: parse_user_host_path(argv[i], &suser, &host, &src);
1160: if (suser != NULL && !okname(suser)) {
1161: ++errs;
1162: continue;
1163: }
1164: if (!host) { /* Local to local. */
1.129 djm 1165: freeargs(&alist);
1166: addargs(&alist, "%s", _PATH_CP);
1167: if (iamrecursive)
1168: addargs(&alist, "-r");
1169: if (pflag)
1170: addargs(&alist, "-p");
1.165 guenther 1171: addargs(&alist, "--");
1.129 djm 1172: addargs(&alist, "%s", argv[i]);
1173: addargs(&alist, "%s", argv[argc-1]);
1174: if (do_local_cmd(&alist))
1.1 deraadt 1175: ++errs;
1176: continue;
1177: }
1.193 millert 1178: /* Remote to local. */
1.216 djm 1179: if (mode == MODE_SFTP) {
1.219 djm 1180: conn = do_sftp_connect(host, suser, sport,
1181: sftp_direct, &remin, &remout, &do_cmd_pid);
1.216 djm 1182: if (conn == NULL) {
1.236 djm 1183: error("sftp connection failed");
1.216 djm 1184: ++errs;
1185: continue;
1186: }
1187:
1188: /* The protocol */
1189: sink_sftp(1, argv[argc - 1], src, conn);
1190:
1191: free(conn);
1192: (void) close(remin);
1193: (void) close(remout);
1194: remin = remout = -1;
1195: continue;
1196: }
1197: /* SCP */
1.171 djm 1198: xasprintf(&bp, "%s -f %s%s",
1199: cmd, *src == '-' ? "-- " : "", src);
1.231 naddy 1200: if (do_cmd(ssh_program, host, suser, sport, 0, bp,
1.219 djm 1201: &remin, &remout, &do_cmd_pid) < 0) {
1.173 djm 1202: free(bp);
1.18 markus 1203: ++errs;
1204: continue;
1.1 deraadt 1205: }
1.173 djm 1206: free(bp);
1.202 djm 1207: sink(1, argv + argc - 1, src);
1.18 markus 1208: (void) close(remin);
1.1 deraadt 1209: remin = remout = -1;
1210: }
1.193 millert 1211: free(suser);
1212: free(host);
1213: free(src);
1.1 deraadt 1214: }
1215:
1.228 djm 1216: /* Prepare remote path, handling ~ by assuming cwd is the homedir */
1.226 djm 1217: static char *
1.228 djm 1218: prepare_remote_path(struct sftp_conn *conn, const char *path)
1.226 djm 1219: {
1.228 djm 1220: /* Handle ~ prefixed paths */
1221: if (*path != '~')
1222: return xstrdup(path);
1223: if (*path == '\0' || strcmp(path, "~") == 0)
1224: return xstrdup(".");
1225: if (strncmp(path, "~/", 2) == 0)
1226: return xstrdup(path + 2);
1.227 djm 1227: if (can_expand_path(conn))
1228: return do_expand_path(conn, path);
1.228 djm 1229: /* No protocol extension */
1.237 djm 1230: error("server expand-path extension is required "
1231: "for ~user paths in SFTP mode");
1.228 djm 1232: return NULL;
1.226 djm 1233: }
1234:
1.1 deraadt 1235: void
1.228 djm 1236: source_sftp(int argc, char *src, char *targ, struct sftp_conn *conn)
1.216 djm 1237: {
1238: char *target = NULL, *filename = NULL, *abs_dst = NULL;
1239: int target_is_dir;
1240:
1241: if ((filename = basename(src)) == NULL)
1242: fatal("basename %s: %s", src, strerror(errno));
1243:
1244: /*
1245: * No need to glob here - the local shell already took care of
1246: * the expansions
1247: */
1.228 djm 1248: if ((target = prepare_remote_path(conn, targ)) == NULL)
1.226 djm 1249: cleanup_exit(255);
1.216 djm 1250: target_is_dir = remote_is_dir(conn, target);
1251: if (targetshouldbedirectory && !target_is_dir) {
1252: fatal("Target is not a directory, but more files selected "
1253: "for upload");
1254: }
1255: if (target_is_dir)
1256: abs_dst = path_append(target, filename);
1257: else {
1258: abs_dst = target;
1259: target = NULL;
1260: }
1261: debug3_f("copying local %s to remote %s", src, abs_dst);
1262:
1263: if (local_is_dir(src) && iamrecursive) {
1.220 djm 1264: if (upload_dir(conn, src, abs_dst, pflag,
1.221 djm 1265: SFTP_PROGRESS_ONLY, 0, 0, 1) != 0) {
1.234 djm 1266: error("failed to upload directory %s to %s",
1.216 djm 1267: src, abs_dst);
1.234 djm 1268: errs = 1;
1.216 djm 1269: }
1.234 djm 1270: } else if (do_upload(conn, src, abs_dst, pflag, 0, 0) != 0) {
1271: error("failed to upload file %s to %s", src, abs_dst);
1272: errs = 1;
1273: }
1.216 djm 1274:
1275: free(abs_dst);
1276: free(target);
1277: }
1278:
1279: void
1.104 djm 1280: source(int argc, char **argv)
1.1 deraadt 1281: {
1282: struct stat stb;
1283: static BUF buffer;
1284: BUF *bp;
1.163 dtucker 1285: off_t i, statbytes;
1.180 djm 1286: size_t amt, nr;
1.125 dtucker 1287: int fd = -1, haderr, indx;
1.206 dtucker 1288: char *last, *name, buf[PATH_MAX + 128], encname[PATH_MAX];
1.65 deraadt 1289: int len;
1.1 deraadt 1290:
1291: for (indx = 0; indx < argc; ++indx) {
1.18 markus 1292: name = argv[indx];
1.11 aaron 1293: statbytes = 0;
1.65 deraadt 1294: len = strlen(name);
1295: while (len > 1 && name[len-1] == '/')
1296: name[--len] = '\0';
1.205 deraadt 1297: if ((fd = open(name, O_RDONLY|O_NONBLOCK, 0)) == -1)
1.158 dtucker 1298: goto syserr;
1.85 markus 1299: if (strchr(name, '\n') != NULL) {
1.158 dtucker 1300: strnvis(encname, name, sizeof(encname), VIS_NL);
1301: name = encname;
1.85 markus 1302: }
1.205 deraadt 1303: if (fstat(fd, &stb) == -1) {
1.1 deraadt 1304: syserr: run_err("%s: %s", name, strerror(errno));
1305: goto next;
1306: }
1.163 dtucker 1307: if (stb.st_size < 0) {
1308: run_err("%s: %s", name, "Negative file size");
1309: goto next;
1310: }
1.157 djm 1311: unset_nonblock(fd);
1.1 deraadt 1312: switch (stb.st_mode & S_IFMT) {
1313: case S_IFREG:
1314: break;
1315: case S_IFDIR:
1316: if (iamrecursive) {
1317: rsource(name, &stb);
1318: goto next;
1319: }
1320: /* FALLTHROUGH */
1321: default:
1322: run_err("%s: not a regular file", name);
1323: goto next;
1324: }
1325: if ((last = strrchr(name, '/')) == NULL)
1326: last = name;
1327: else
1328: ++last;
1.11 aaron 1329: curfile = last;
1.1 deraadt 1330: if (pflag) {
1.176 guenther 1331: if (do_times(remout, verbose_mode, &stb) < 0)
1.1 deraadt 1332: goto next;
1333: }
1334: #define FILEMODEMASK (S_ISUID|S_ISGID|S_IRWXU|S_IRWXG|S_IRWXO)
1.61 markus 1335: snprintf(buf, sizeof buf, "C%04o %lld %s\n",
1.47 markus 1336: (u_int) (stb.st_mode & FILEMODEMASK),
1.62 markus 1337: (long long)stb.st_size, last);
1.186 schwarze 1338: if (verbose_mode)
1339: fmprintf(stderr, "Sending file modes: %s", buf);
1.107 deraadt 1340: (void) atomicio(vwrite, remout, buf, strlen(buf));
1.1 deraadt 1341: if (response() < 0)
1342: goto next;
1.161 djm 1343: if ((bp = allocbuf(&buffer, fd, COPY_BUFLEN)) == NULL) {
1.127 deraadt 1344: next: if (fd != -1) {
1345: (void) close(fd);
1346: fd = -1;
1347: }
1.1 deraadt 1348: continue;
1349: }
1.97 fgsch 1350: if (showprogress)
1351: start_progress_meter(curfile, stb.st_size, &statbytes);
1.161 djm 1352: set_nonblock(remout);
1.1 deraadt 1353: for (haderr = i = 0; i < stb.st_size; i += bp->cnt) {
1354: amt = bp->cnt;
1.163 dtucker 1355: if (i + (off_t)amt > stb.st_size)
1.1 deraadt 1356: amt = stb.st_size - i;
1357: if (!haderr) {
1.180 djm 1358: if ((nr = atomicio(read, fd,
1359: bp->buf, amt)) != amt) {
1.122 avsm 1360: haderr = errno;
1.180 djm 1361: memset(bp->buf + nr, 0, amt - nr);
1362: }
1.1 deraadt 1363: }
1.161 djm 1364: /* Keep writing after error to retain sync */
1365: if (haderr) {
1366: (void)atomicio(vwrite, remout, bp->buf, amt);
1.180 djm 1367: memset(bp->buf, 0, amt);
1.161 djm 1368: continue;
1.1 deraadt 1369: }
1.167 djm 1370: if (atomicio6(vwrite, remout, bp->buf, amt, scpio,
1.161 djm 1371: &statbytes) != amt)
1372: haderr = errno;
1.1 deraadt 1373: }
1.161 djm 1374: unset_nonblock(remout);
1.4 aaron 1375:
1.127 deraadt 1376: if (fd != -1) {
1.205 deraadt 1377: if (close(fd) == -1 && !haderr)
1.127 deraadt 1378: haderr = errno;
1379: fd = -1;
1380: }
1.1 deraadt 1381: if (!haderr)
1.107 deraadt 1382: (void) atomicio(vwrite, remout, "", 1);
1.1 deraadt 1383: else
1384: run_err("%s: %s", name, strerror(haderr));
1.18 markus 1385: (void) response();
1.185 dtucker 1386: if (showprogress)
1387: stop_progress_meter();
1.1 deraadt 1388: }
1389: }
1390:
1391: void
1.104 djm 1392: rsource(char *name, struct stat *statp)
1.1 deraadt 1393: {
1394: DIR *dirp;
1395: struct dirent *dp;
1.181 deraadt 1396: char *last, *vect[1], path[PATH_MAX];
1.1 deraadt 1397:
1398: if (!(dirp = opendir(name))) {
1399: run_err("%s: %s", name, strerror(errno));
1400: return;
1401: }
1402: last = strrchr(name, '/');
1.183 mmcc 1403: if (last == NULL)
1.1 deraadt 1404: last = name;
1405: else
1406: last++;
1407: if (pflag) {
1.176 guenther 1408: if (do_times(remout, verbose_mode, statp) < 0) {
1.1 deraadt 1409: closedir(dirp);
1410: return;
1411: }
1412: }
1.55 deraadt 1413: (void) snprintf(path, sizeof path, "D%04o %d %.1024s\n",
1.47 markus 1414: (u_int) (statp->st_mode & FILEMODEMASK), 0, last);
1.18 markus 1415: if (verbose_mode)
1.186 schwarze 1416: fmprintf(stderr, "Entering directory: %s", path);
1.107 deraadt 1417: (void) atomicio(vwrite, remout, path, strlen(path));
1.1 deraadt 1418: if (response() < 0) {
1419: closedir(dirp);
1420: return;
1421: }
1.63 stevesk 1422: while ((dp = readdir(dirp)) != NULL) {
1.1 deraadt 1423: if (dp->d_ino == 0)
1424: continue;
1425: if (!strcmp(dp->d_name, ".") || !strcmp(dp->d_name, ".."))
1426: continue;
1427: if (strlen(name) + 1 + strlen(dp->d_name) >= sizeof(path) - 1) {
1428: run_err("%s/%s: name too long", name, dp->d_name);
1429: continue;
1430: }
1.55 deraadt 1431: (void) snprintf(path, sizeof path, "%s/%s", name, dp->d_name);
1.1 deraadt 1432: vect[0] = path;
1433: source(1, vect);
1434: }
1.18 markus 1435: (void) closedir(dirp);
1.107 deraadt 1436: (void) atomicio(vwrite, remout, "E\n", 2);
1.18 markus 1437: (void) response();
1.1 deraadt 1438: }
1439:
1.216 djm 1440: void
1441: sink_sftp(int argc, char *dst, const char *src, struct sftp_conn *conn)
1442: {
1443: char *abs_src = NULL;
1444: char *abs_dst = NULL;
1445: glob_t g;
1.228 djm 1446: char *filename, *tmp = NULL;
1.216 djm 1447: int i, r, err = 0;
1448:
1.226 djm 1449: memset(&g, 0, sizeof(g));
1.216 djm 1450: /*
1451: * Here, we need remote glob as SFTP can not depend on remote shell
1452: * expansions
1453: */
1454:
1.228 djm 1455: if ((abs_src = prepare_remote_path(conn, src)) == NULL) {
1.226 djm 1456: err = -1;
1457: goto out;
1458: }
1.216 djm 1459:
1460: debug3_f("copying remote %s to local %s", abs_src, dst);
1461: if ((r = remote_glob(conn, abs_src, GLOB_MARK, NULL, &g)) != 0) {
1462: if (r == GLOB_NOSPACE)
1.236 djm 1463: error("%s: too many glob matches", abs_src);
1.216 djm 1464: else
1.236 djm 1465: error("%s: %s", abs_src, strerror(ENOENT));
1.216 djm 1466: err = -1;
1467: goto out;
1468: }
1469:
1470: if (g.gl_matchc > 1 && !local_is_dir(dst)) {
1471: error("Multiple files match pattern, but destination "
1472: "\"%s\" is not a directory", dst);
1473: err = -1;
1474: goto out;
1475: }
1476:
1477: for (i = 0; g.gl_pathv[i] && !interrupted; i++) {
1478: tmp = xstrdup(g.gl_pathv[i]);
1479: if ((filename = basename(tmp)) == NULL) {
1480: error("basename %s: %s", tmp, strerror(errno));
1481: err = -1;
1482: goto out;
1483: }
1484:
1485: if (local_is_dir(dst))
1486: abs_dst = path_append(dst, filename);
1487: else
1488: abs_dst = xstrdup(dst);
1489:
1490: debug("Fetching %s to %s\n", g.gl_pathv[i], abs_dst);
1491: if (globpath_is_dir(g.gl_pathv[i]) && iamrecursive) {
1492: if (download_dir(conn, g.gl_pathv[i], abs_dst, NULL,
1.221 djm 1493: pflag, SFTP_PROGRESS_ONLY, 0, 0, 1) == -1)
1.216 djm 1494: err = -1;
1495: } else {
1496: if (do_download(conn, g.gl_pathv[i], abs_dst, NULL,
1497: pflag, 0, 0) == -1)
1498: err = -1;
1499: }
1500: free(abs_dst);
1501: abs_dst = NULL;
1.217 dtucker 1502: free(tmp);
1503: tmp = NULL;
1.216 djm 1504: }
1505:
1506: out:
1507: free(abs_src);
1.217 dtucker 1508: free(tmp);
1.216 djm 1509: globfree(&g);
1.235 djm 1510: if (err == -1)
1.234 djm 1511: errs = 1;
1.216 djm 1512: }
1513:
1514:
1.189 millert 1515: #define TYPE_OVERFLOW(type, val) \
1516: ((sizeof(type) == 4 && (val) > INT32_MAX) || \
1517: (sizeof(type) == 8 && (val) > INT64_MAX) || \
1518: (sizeof(type) != 4 && sizeof(type) != 8))
1519:
1.1 deraadt 1520: void
1.202 djm 1521: sink(int argc, char **argv, const char *src)
1.1 deraadt 1522: {
1523: static BUF buffer;
1524: struct stat stb;
1525: BUF *bp;
1.122 avsm 1526: off_t i;
1.124 djm 1527: size_t j, count;
1.140 deraadt 1528: int amt, exists, first, ofd;
1529: mode_t mode, omode, mask;
1.97 fgsch 1530: off_t size, statbytes;
1.176 guenther 1531: unsigned long long ull;
1.209 djm 1532: int setimes, targisdir, wrerr;
1.186 schwarze 1533: char ch, *cp, *np, *targ, *why, *vect[1], buf[2048], visbuf[2048];
1.204 djm 1534: char **patterns = NULL;
1535: size_t n, npatterns = 0;
1.40 markus 1536: struct timeval tv[2];
1.1 deraadt 1537:
1.66 stevesk 1538: #define atime tv[0]
1539: #define mtime tv[1]
1.118 deraadt 1540: #define SCREWUP(str) { why = str; goto screwup; }
1.1 deraadt 1541:
1.189 millert 1542: if (TYPE_OVERFLOW(time_t, 0) || TYPE_OVERFLOW(off_t, 0))
1543: SCREWUP("Unexpected off_t/time_t size");
1544:
1.1 deraadt 1545: setimes = targisdir = 0;
1546: mask = umask(0);
1547: if (!pflag)
1.18 markus 1548: (void) umask(mask);
1.1 deraadt 1549: if (argc != 1) {
1550: run_err("ambiguous target");
1551: exit(1);
1552: }
1553: targ = *argv;
1554: if (targetshouldbedirectory)
1555: verifydir(targ);
1.18 markus 1556:
1.107 deraadt 1557: (void) atomicio(vwrite, remout, "", 1);
1.1 deraadt 1558: if (stat(targ, &stb) == 0 && S_ISDIR(stb.st_mode))
1559: targisdir = 1;
1.202 djm 1560: if (src != NULL && !iamrecursive && !Tflag) {
1561: /*
1562: * Prepare to try to restrict incoming filenames to match
1563: * the requested destination file glob.
1564: */
1.204 djm 1565: if (brace_expand(src, &patterns, &npatterns) != 0)
1.213 djm 1566: fatal_f("could not expand pattern");
1.202 djm 1567: }
1.1 deraadt 1568: for (first = 1;; first = 0) {
1569: cp = buf;
1.122 avsm 1570: if (atomicio(read, remin, cp, 1) != 1)
1.204 djm 1571: goto done;
1.1 deraadt 1572: if (*cp++ == '\n')
1573: SCREWUP("unexpected <newline>");
1574: do {
1.30 deraadt 1575: if (atomicio(read, remin, &ch, sizeof(ch)) != sizeof(ch))
1.1 deraadt 1576: SCREWUP("lost connection");
1577: *cp++ = ch;
1578: } while (cp < &buf[sizeof(buf) - 1] && ch != '\n');
1579: *cp = 0;
1.114 markus 1580: if (verbose_mode)
1.186 schwarze 1581: fmprintf(stderr, "Sink: %s", buf);
1.1 deraadt 1582:
1583: if (buf[0] == '\01' || buf[0] == '\02') {
1.186 schwarze 1584: if (iamremote == 0) {
1585: (void) snmprintf(visbuf, sizeof(visbuf),
1586: NULL, "%s", buf + 1);
1.107 deraadt 1587: (void) atomicio(vwrite, STDERR_FILENO,
1.186 schwarze 1588: visbuf, strlen(visbuf));
1589: }
1.1 deraadt 1590: if (buf[0] == '\02')
1591: exit(1);
1592: ++errs;
1593: continue;
1594: }
1595: if (buf[0] == 'E') {
1.107 deraadt 1596: (void) atomicio(vwrite, remout, "", 1);
1.204 djm 1597: goto done;
1.1 deraadt 1598: }
1599: if (ch == '\n')
1600: *--cp = 0;
1601:
1602: cp = buf;
1603: if (*cp == 'T') {
1604: setimes++;
1605: cp++;
1.176 guenther 1606: if (!isdigit((unsigned char)*cp))
1607: SCREWUP("mtime.sec not present");
1608: ull = strtoull(cp, &cp, 10);
1.66 stevesk 1609: if (!cp || *cp++ != ' ')
1.1 deraadt 1610: SCREWUP("mtime.sec not delimited");
1.189 millert 1611: if (TYPE_OVERFLOW(time_t, ull))
1.176 guenther 1612: setimes = 0; /* out of range */
1613: mtime.tv_sec = ull;
1.66 stevesk 1614: mtime.tv_usec = strtol(cp, &cp, 10);
1.176 guenther 1615: if (!cp || *cp++ != ' ' || mtime.tv_usec < 0 ||
1616: mtime.tv_usec > 999999)
1.1 deraadt 1617: SCREWUP("mtime.usec not delimited");
1.176 guenther 1618: if (!isdigit((unsigned char)*cp))
1619: SCREWUP("atime.sec not present");
1620: ull = strtoull(cp, &cp, 10);
1.66 stevesk 1621: if (!cp || *cp++ != ' ')
1.1 deraadt 1622: SCREWUP("atime.sec not delimited");
1.189 millert 1623: if (TYPE_OVERFLOW(time_t, ull))
1.176 guenther 1624: setimes = 0; /* out of range */
1625: atime.tv_sec = ull;
1.66 stevesk 1626: atime.tv_usec = strtol(cp, &cp, 10);
1.176 guenther 1627: if (!cp || *cp++ != '\0' || atime.tv_usec < 0 ||
1628: atime.tv_usec > 999999)
1.1 deraadt 1629: SCREWUP("atime.usec not delimited");
1.107 deraadt 1630: (void) atomicio(vwrite, remout, "", 1);
1.1 deraadt 1631: continue;
1632: }
1633: if (*cp != 'C' && *cp != 'D') {
1634: /*
1635: * Check for the case "rcp remote:foo\* local:bar".
1636: * In this case, the line "No match." can be returned
1637: * by the shell before the rcp command on the remote is
1638: * executed so the ^Aerror_message convention isn't
1639: * followed.
1640: */
1641: if (first) {
1642: run_err("%s", cp);
1643: exit(1);
1644: }
1645: SCREWUP("expected control record");
1646: }
1647: mode = 0;
1648: for (++cp; cp < buf + 5; cp++) {
1649: if (*cp < '0' || *cp > '7')
1650: SCREWUP("bad mode");
1651: mode = (mode << 3) | (*cp - '0');
1652: }
1.197 dtucker 1653: if (!pflag)
1654: mode &= ~mask;
1.1 deraadt 1655: if (*cp++ != ' ')
1656: SCREWUP("mode not delimited");
1657:
1.188 millert 1658: if (!isdigit((unsigned char)*cp))
1659: SCREWUP("size not present");
1660: ull = strtoull(cp, &cp, 10);
1661: if (!cp || *cp++ != ' ')
1.1 deraadt 1662: SCREWUP("size not delimited");
1.189 millert 1663: if (TYPE_OVERFLOW(off_t, ull))
1.188 millert 1664: SCREWUP("size out of range");
1665: size = (off_t)ull;
1666:
1.198 djm 1667: if (*cp == '\0' || strchr(cp, '/') != NULL ||
1668: strcmp(cp, ".") == 0 || strcmp(cp, "..") == 0) {
1.114 markus 1669: run_err("error: unexpected filename: %s", cp);
1670: exit(1);
1671: }
1.204 djm 1672: if (npatterns > 0) {
1673: for (n = 0; n < npatterns; n++) {
1674: if (fnmatch(patterns[n], cp, 0) == 0)
1675: break;
1676: }
1677: if (n >= npatterns)
1678: SCREWUP("filename does not match request");
1679: }
1.1 deraadt 1680: if (targisdir) {
1681: static char *namebuf;
1.124 djm 1682: static size_t cursize;
1.1 deraadt 1683: size_t need;
1684:
1685: need = strlen(targ) + strlen(cp) + 250;
1.55 deraadt 1686: if (need > cursize) {
1.173 djm 1687: free(namebuf);
1.18 markus 1688: namebuf = xmalloc(need);
1.55 deraadt 1689: cursize = need;
1690: }
1691: (void) snprintf(namebuf, need, "%s%s%s", targ,
1.88 mouring 1692: strcmp(targ, "/") ? "/" : "", cp);
1.1 deraadt 1693: np = namebuf;
1694: } else
1695: np = targ;
1.12 aaron 1696: curfile = cp;
1.1 deraadt 1697: exists = stat(np, &stb) == 0;
1698: if (buf[0] == 'D') {
1699: int mod_flag = pflag;
1.114 markus 1700: if (!iamrecursive)
1701: SCREWUP("received directory without -r");
1.1 deraadt 1702: if (exists) {
1703: if (!S_ISDIR(stb.st_mode)) {
1704: errno = ENOTDIR;
1705: goto bad;
1706: }
1707: if (pflag)
1.18 markus 1708: (void) chmod(np, mode);
1.1 deraadt 1709: } else {
1.214 djm 1710: /* Handle copying from a read-only directory */
1.1 deraadt 1711: mod_flag = 1;
1.205 deraadt 1712: if (mkdir(np, mode | S_IRWXU) == -1)
1.1 deraadt 1713: goto bad;
1714: }
1.58 danh 1715: vect[0] = xstrdup(np);
1.202 djm 1716: sink(1, vect, src);
1.1 deraadt 1717: if (setimes) {
1718: setimes = 0;
1.210 djm 1719: (void) utimes(vect[0], tv);
1.1 deraadt 1720: }
1721: if (mod_flag)
1.59 deraadt 1722: (void) chmod(vect[0], mode);
1.173 djm 1723: free(vect[0]);
1.1 deraadt 1724: continue;
1725: }
1726: omode = mode;
1.174 dtucker 1727: mode |= S_IWUSR;
1.205 deraadt 1728: if ((ofd = open(np, O_WRONLY|O_CREAT, mode)) == -1) {
1.1 deraadt 1729: bad: run_err("%s: %s", np, strerror(errno));
1730: continue;
1731: }
1.107 deraadt 1732: (void) atomicio(vwrite, remout, "", 1);
1.161 djm 1733: if ((bp = allocbuf(&buffer, ofd, COPY_BUFLEN)) == NULL) {
1.18 markus 1734: (void) close(ofd);
1.1 deraadt 1735: continue;
1736: }
1737: cp = bp->buf;
1.209 djm 1738: wrerr = 0;
1.7 deraadt 1739:
1.209 djm 1740: /*
1741: * NB. do not use run_err() unless immediately followed by
1742: * exit() below as it may send a spurious reply that might
1743: * desyncronise us from the peer. Use note_err() instead.
1744: */
1.12 aaron 1745: statbytes = 0;
1.97 fgsch 1746: if (showprogress)
1747: start_progress_meter(curfile, size, &statbytes);
1.161 djm 1748: set_nonblock(remin);
1749: for (count = i = 0; i < size; i += bp->cnt) {
1750: amt = bp->cnt;
1.1 deraadt 1751: if (i + amt > size)
1752: amt = size - i;
1753: count += amt;
1754: do {
1.167 djm 1755: j = atomicio6(read, remin, cp, amt,
1756: scpio, &statbytes);
1.122 avsm 1757: if (j == 0) {
1.161 djm 1758: run_err("%s", j != EPIPE ?
1759: strerror(errno) :
1.63 stevesk 1760: "dropped connection");
1.1 deraadt 1761: exit(1);
1762: }
1763: amt -= j;
1764: cp += j;
1765: } while (amt > 0);
1.112 djm 1766:
1.1 deraadt 1767: if (count == bp->cnt) {
1768: /* Keep reading so we stay sync'd up. */
1.209 djm 1769: if (!wrerr) {
1.122 avsm 1770: if (atomicio(vwrite, ofd, bp->buf,
1771: count) != count) {
1.209 djm 1772: note_err("%s: %s", np,
1773: strerror(errno));
1774: wrerr = 1;
1.1 deraadt 1775: }
1776: }
1777: count = 0;
1778: cp = bp->buf;
1779: }
1780: }
1.161 djm 1781: unset_nonblock(remin);
1.209 djm 1782: if (count != 0 && !wrerr &&
1.122 avsm 1783: atomicio(vwrite, ofd, bp->buf, count) != count) {
1.209 djm 1784: note_err("%s: %s", np, strerror(errno));
1785: wrerr = 1;
1.1 deraadt 1786: }
1.209 djm 1787: if (!wrerr && (!exists || S_ISREG(stb.st_mode)) &&
1788: ftruncate(ofd, size) != 0)
1789: note_err("%s: truncate: %s", np, strerror(errno));
1.1 deraadt 1790: if (pflag) {
1791: if (exists || omode != mode)
1.116 dtucker 1792: if (fchmod(ofd, omode)) {
1.209 djm 1793: note_err("%s: set mode: %s",
1.63 stevesk 1794: np, strerror(errno));
1.116 dtucker 1795: }
1.1 deraadt 1796: } else {
1797: if (!exists && omode != mode)
1.116 dtucker 1798: if (fchmod(ofd, omode & ~mask)) {
1.209 djm 1799: note_err("%s: set mode: %s",
1.63 stevesk 1800: np, strerror(errno));
1.116 dtucker 1801: }
1.1 deraadt 1802: }
1.209 djm 1803: if (close(ofd) == -1)
1.211 millert 1804: note_err("%s: close: %s", np, strerror(errno));
1.18 markus 1805: (void) response();
1.185 dtucker 1806: if (showprogress)
1807: stop_progress_meter();
1.209 djm 1808: if (setimes && !wrerr) {
1.1 deraadt 1809: setimes = 0;
1.205 deraadt 1810: if (utimes(np, tv) == -1) {
1.209 djm 1811: note_err("%s: set times: %s",
1.63 stevesk 1812: np, strerror(errno));
1.1 deraadt 1813: }
1814: }
1.209 djm 1815: /* If no error was noted then signal success for this file */
1816: if (note_err(NULL) == 0)
1.107 deraadt 1817: (void) atomicio(vwrite, remout, "", 1);
1.1 deraadt 1818: }
1.204 djm 1819: done:
1820: for (n = 0; n < npatterns; n++)
1821: free(patterns[n]);
1822: free(patterns);
1823: return;
1.1 deraadt 1824: screwup:
1.204 djm 1825: for (n = 0; n < npatterns; n++)
1826: free(patterns[n]);
1827: free(patterns);
1.1 deraadt 1828: run_err("protocol error: %s", why);
1829: exit(1);
1.219 djm 1830: }
1831:
1832: void
1833: throughlocal_sftp(struct sftp_conn *from, struct sftp_conn *to,
1.228 djm 1834: char *src, char *targ)
1.219 djm 1835: {
1836: char *target = NULL, *filename = NULL, *abs_dst = NULL;
1.228 djm 1837: char *abs_src = NULL, *tmp = NULL;
1.219 djm 1838: glob_t g;
1839: int i, r, targetisdir, err = 0;
1840:
1841: if ((filename = basename(src)) == NULL)
1842: fatal("basename %s: %s", src, strerror(errno));
1843:
1.228 djm 1844: if ((abs_src = prepare_remote_path(from, src)) == NULL ||
1845: (target = prepare_remote_path(to, targ)) == NULL)
1.226 djm 1846: cleanup_exit(255);
1.219 djm 1847: memset(&g, 0, sizeof(g));
1848:
1849: targetisdir = remote_is_dir(to, target);
1850: if (!targetisdir && targetshouldbedirectory) {
1.236 djm 1851: error("%s: destination is not a directory", target);
1.219 djm 1852: err = -1;
1853: goto out;
1854: }
1855:
1856: debug3_f("copying remote %s to remote %s", abs_src, target);
1857: if ((r = remote_glob(from, abs_src, GLOB_MARK, NULL, &g)) != 0) {
1858: if (r == GLOB_NOSPACE)
1.236 djm 1859: error("%s: too many glob matches", abs_src);
1.219 djm 1860: else
1.236 djm 1861: error("%s: %s", abs_src, strerror(ENOENT));
1.219 djm 1862: err = -1;
1863: goto out;
1864: }
1865:
1866: for (i = 0; g.gl_pathv[i] && !interrupted; i++) {
1867: tmp = xstrdup(g.gl_pathv[i]);
1868: if ((filename = basename(tmp)) == NULL) {
1869: error("basename %s: %s", tmp, strerror(errno));
1870: err = -1;
1871: goto out;
1872: }
1873:
1874: if (targetisdir)
1875: abs_dst = path_append(target, filename);
1876: else
1877: abs_dst = xstrdup(target);
1878:
1879: debug("Fetching %s to %s\n", g.gl_pathv[i], abs_dst);
1880: if (globpath_is_dir(g.gl_pathv[i]) && iamrecursive) {
1881: if (crossload_dir(from, to, g.gl_pathv[i], abs_dst,
1.221 djm 1882: NULL, pflag, SFTP_PROGRESS_ONLY, 1) == -1)
1.219 djm 1883: err = -1;
1884: } else {
1885: if (do_crossload(from, to, g.gl_pathv[i], abs_dst, NULL,
1886: pflag) == -1)
1887: err = -1;
1888: }
1889: free(abs_dst);
1890: abs_dst = NULL;
1891: free(tmp);
1892: tmp = NULL;
1893: }
1894:
1895: out:
1896: free(abs_src);
1897: free(abs_dst);
1898: free(target);
1899: free(tmp);
1900: globfree(&g);
1901: if (err == -1)
1.235 djm 1902: errs = 1;
1.1 deraadt 1903: }
1904:
1905: int
1.86 itojun 1906: response(void)
1.1 deraadt 1907: {
1.186 schwarze 1908: char ch, *cp, resp, rbuf[2048], visbuf[2048];
1.1 deraadt 1909:
1.30 deraadt 1910: if (atomicio(read, remin, &resp, sizeof(resp)) != sizeof(resp))
1.1 deraadt 1911: lostconn(0);
1912:
1913: cp = rbuf;
1.18 markus 1914: switch (resp) {
1915: case 0: /* ok */
1.1 deraadt 1916: return (0);
1917: default:
1918: *cp++ = resp;
1919: /* FALLTHROUGH */
1.18 markus 1920: case 1: /* error, followed by error msg */
1921: case 2: /* fatal error, "" */
1.1 deraadt 1922: do {
1.30 deraadt 1923: if (atomicio(read, remin, &ch, sizeof(ch)) != sizeof(ch))
1.1 deraadt 1924: lostconn(0);
1925: *cp++ = ch;
1926: } while (cp < &rbuf[sizeof(rbuf) - 1] && ch != '\n');
1927:
1.186 schwarze 1928: if (!iamremote) {
1929: cp[-1] = '\0';
1930: (void) snmprintf(visbuf, sizeof(visbuf),
1931: NULL, "%s\n", rbuf);
1932: (void) atomicio(vwrite, STDERR_FILENO,
1933: visbuf, strlen(visbuf));
1934: }
1.1 deraadt 1935: ++errs;
1936: if (resp == 1)
1937: return (-1);
1938: exit(1);
1939: }
1940: /* NOTREACHED */
1941: }
1942:
1943: void
1.86 itojun 1944: usage(void)
1.1 deraadt 1945: {
1.83 stevesk 1946: (void) fprintf(stderr,
1.233 djm 1947: "usage: scp [-346ABCOpqRrTv] [-c cipher] [-D sftp_server_path] [-F ssh_config]\n"
1.230 djm 1948: " [-i identity_file] [-J destination] [-l limit]\n"
1.224 djm 1949: " [-o ssh_option] [-P port] [-S program] source ... target\n");
1.1 deraadt 1950: exit(1);
1951: }
1952:
1953: void
1.18 markus 1954: run_err(const char *fmt,...)
1.1 deraadt 1955: {
1956: static FILE *fp;
1957: va_list ap;
1958:
1959: ++errs;
1.136 biorn 1960: if (fp != NULL || (remout != -1 && (fp = fdopen(remout, "w")))) {
1961: (void) fprintf(fp, "%c", 0x01);
1962: (void) fprintf(fp, "scp: ");
1963: va_start(ap, fmt);
1964: (void) vfprintf(fp, fmt, ap);
1965: va_end(ap);
1966: (void) fprintf(fp, "\n");
1967: (void) fflush(fp);
1968: }
1.18 markus 1969:
1970: if (!iamremote) {
1.73 markus 1971: va_start(ap, fmt);
1.186 schwarze 1972: vfmprintf(stderr, fmt, ap);
1.73 markus 1973: va_end(ap);
1.18 markus 1974: fprintf(stderr, "\n");
1975: }
1.209 djm 1976: }
1977:
1978: /*
1979: * Notes a sink error for sending at the end of a file transfer. Returns 0 if
1980: * no error has been noted or -1 otherwise. Use note_err(NULL) to flush
1981: * any active error at the end of the transfer.
1982: */
1983: int
1984: note_err(const char *fmt, ...)
1985: {
1986: static char *emsg;
1987: va_list ap;
1988:
1989: /* Replay any previously-noted error */
1990: if (fmt == NULL) {
1991: if (emsg == NULL)
1992: return 0;
1993: run_err("%s", emsg);
1994: free(emsg);
1995: emsg = NULL;
1996: return -1;
1997: }
1998:
1999: errs++;
2000: /* Prefer first-noted error */
2001: if (emsg != NULL)
2002: return -1;
2003:
2004: va_start(ap, fmt);
2005: vasnmprintf(&emsg, INT_MAX, NULL, fmt, ap);
2006: va_end(ap);
2007: return -1;
1.1 deraadt 2008: }
2009:
2010: void
1.104 djm 2011: verifydir(char *cp)
1.1 deraadt 2012: {
2013: struct stat stb;
2014:
2015: if (!stat(cp, &stb)) {
2016: if (S_ISDIR(stb.st_mode))
2017: return;
2018: errno = ENOTDIR;
2019: }
2020: run_err("%s: %s", cp, strerror(errno));
1.123 avsm 2021: killchild(0);
1.1 deraadt 2022: }
2023:
2024: int
1.104 djm 2025: okname(char *cp0)
1.1 deraadt 2026: {
2027: int c;
2028: char *cp;
2029:
2030: cp = cp0;
2031: do {
1.75 deraadt 2032: c = (int)*cp;
1.1 deraadt 2033: if (c & 0200)
2034: goto bad;
1.179 deraadt 2035: if (!isalpha(c) && !isdigit((unsigned char)c)) {
1.101 markus 2036: switch (c) {
2037: case '\'':
2038: case '"':
2039: case '`':
2040: case ' ':
2041: case '#':
2042: goto bad;
2043: default:
2044: break;
2045: }
2046: }
1.1 deraadt 2047: } while (*++cp);
2048: return (1);
2049:
1.186 schwarze 2050: bad: fmprintf(stderr, "%s: invalid user name\n", cp0);
1.1 deraadt 2051: return (0);
2052: }
2053:
2054: BUF *
1.104 djm 2055: allocbuf(BUF *bp, int fd, int blksize)
1.1 deraadt 2056: {
2057: size_t size;
2058: struct stat stb;
2059:
1.205 deraadt 2060: if (fstat(fd, &stb) == -1) {
1.1 deraadt 2061: run_err("fstat: %s", strerror(errno));
2062: return (0);
2063: }
1.187 deraadt 2064: size = ROUNDUP(stb.st_blksize, blksize);
1.95 markus 2065: if (size == 0)
1.18 markus 2066: size = blksize;
1.1 deraadt 2067: if (bp->cnt >= size)
2068: return (bp);
1.192 deraadt 2069: bp->buf = xrecallocarray(bp->buf, bp->cnt, size, 1);
1.1 deraadt 2070: bp->cnt = size;
2071: return (bp);
2072: }
2073:
2074: void
1.104 djm 2075: lostconn(int signo)
1.1 deraadt 2076: {
2077: if (!iamremote)
1.172 dtucker 2078: (void)write(STDERR_FILENO, "lost connection\n", 16);
1.74 markus 2079: if (signo)
2080: _exit(1);
2081: else
2082: exit(1);
1.225 djm 2083: }
2084:
2085: void
2086: cleanup_exit(int i)
2087: {
2088: if (remin > 0)
2089: close(remin);
2090: if (remout > 0)
2091: close(remout);
2092: if (remin2 > 0)
2093: close(remin2);
2094: if (remout2 > 0)
2095: close(remout2);
2096: if (do_cmd_pid > 0)
2097: waitpid(do_cmd_pid, NULL, 0);
2098: if (do_cmd_pid2 > 0)
2099: waitpid(do_cmd_pid2, NULL, 0);
2100: exit(i);
1.4 aaron 2101: }
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