Annotation of src/crypto/external/bsd/openssh/dist/scp.c, Revision 1.1.1.26
1.1.1.26! christos 1: /* $OpenBSD: scp.c,v 1.248 2022/05/13 06:31:50 djm Exp $ */
1.1 christos 2: /*
3: * scp - secure remote copy. This is basically patched BSD rcp which
4: * uses ssh to do the data transfer (instead of using rcmd).
5: *
6: * NOTE: This version should NOT be suid root. (This uses ssh to
7: * do the transfer and ssh has the necessary privileges.)
8: *
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".
16: */
17: /*
18: * Copyright (c) 1999 Theo de Raadt. All rights reserved.
19: * Copyright (c) 1999 Aaron Campbell. All rights reserved.
20: *
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.
29: *
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: */
41:
42: /*
43: * Parts from:
44: *
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.
56: * 3. Neither the name of the University nor the names of its contributors
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:
74: #include <sys/types.h>
75: #include <sys/poll.h>
76: #include <sys/wait.h>
77: #include <sys/stat.h>
78: #include <sys/time.h>
79: #include <sys/uio.h>
80:
81: #include <ctype.h>
82: #include <dirent.h>
83: #include <errno.h>
84: #include <fcntl.h>
1.1.1.15 christos 85: #include <fnmatch.h>
1.1.1.22 christos 86: #include <glob.h>
87: #include <libgen.h>
1.1.1.10 christos 88: #include <locale.h>
1.1 christos 89: #include <pwd.h>
90: #include <signal.h>
91: #include <stdarg.h>
1.1.1.12 christos 92: #include <stdint.h>
1.1 christos 93: #include <stdio.h>
94: #include <stdlib.h>
95: #include <string.h>
96: #include <time.h>
97: #include <unistd.h>
1.1.1.7 christos 98: #include <limits.h>
1.1 christos 99: #include <vis.h>
100:
101: #include "xmalloc.h"
1.1.1.13 christos 102: #include "ssh.h"
1.1 christos 103: #include "atomicio.h"
104: #include "pathnames.h"
105: #include "log.h"
106: #include "misc.h"
107: #include "progressmeter.h"
1.1.1.10 christos 108: #include "utf8.h"
1.1.1.24 christos 109: #include "sftp.h"
1.1 christos 110:
1.1.1.22 christos 111: #include "sftp-common.h"
112: #include "sftp-client.h"
113:
1.1 christos 114: #define COPY_BUFLEN 16384
115:
1.1.1.22 christos 116: int do_cmd(char *, char *, char *, int, int, char *, int *, int *, pid_t *);
117: int do_cmd2(char *, char *, int, char *, int, int);
1.1 christos 118:
119: /* Struct for addargs */
120: arglist args;
1.1.1.3 christos 121: arglist remote_remote_args;
1.1 christos 122:
123: /* Bandwidth limit */
1.1.1.3 christos 124: long long limit_kbps = 0;
125: struct bwlimit bwlimit;
1.1 christos 126:
127: /* Name of current file being transferred. */
128: char *curfile;
129:
130: /* This is set to non-zero to enable verbose mode. */
131: int verbose_mode = 0;
1.1.1.22 christos 132: LogLevel log_level = SYSLOG_LEVEL_INFO;
1.1 christos 133:
134: /* This is set to zero if the progressmeter is not desired. */
135: int showprogress = 1;
136:
1.1.1.3 christos 137: /*
138: * This is set to non-zero if remote-remote copy should be piped
139: * through this process.
140: */
1.1.1.22 christos 141: int throughlocal = 1;
1.1.1.3 christos 142:
1.1.1.13 christos 143: /* Non-standard port to use for the ssh connection or -1. */
144: int sshport = -1;
145:
1.1 christos 146: /* This is the program to execute for the secured connection. ("ssh" or -S) */
147: char *ssh_program = _PATH_SSH_PROGRAM;
148:
149: /* This is used to store the pid of ssh_program */
150: pid_t do_cmd_pid = -1;
1.1.1.22 christos 151: pid_t do_cmd_pid2 = -1;
152:
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 */
1.1 christos 158:
159: static void
160: killchild(int signo)
161: {
162: if (do_cmd_pid > 1) {
163: kill(do_cmd_pid, signo ? signo : SIGTERM);
164: waitpid(do_cmd_pid, NULL, 0);
165: }
1.1.1.22 christos 166: if (do_cmd_pid2 > 1) {
167: kill(do_cmd_pid2, signo ? signo : SIGTERM);
168: waitpid(do_cmd_pid2, NULL, 0);
169: }
1.1 christos 170:
171: if (signo)
172: _exit(1);
173: exit(1);
174: }
175:
1.1.1.2 adam 176: static void
1.1.1.22 christos 177: suspone(int pid, int signo)
1.1.1.2 adam 178: {
179: int status;
180:
1.1.1.22 christos 181: if (pid > 1) {
182: kill(pid, signo);
183: while (waitpid(pid, &status, WUNTRACED) == -1 &&
1.1.1.2 adam 184: errno == EINTR)
185: ;
186: }
187: }
188:
1.1.1.22 christos 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:
1.1 christos 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++)
1.1.1.10 christos 210: fmprintf(stderr, " %s", a->list[i]);
1.1 christos 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;
1.1.1.17 christos 223: ssh_signal(SIGTERM, killchild);
224: ssh_signal(SIGINT, killchild);
225: ssh_signal(SIGHUP, killchild);
1.1 christos 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:
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: */
244:
245: int
1.1.1.22 christos 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 christos 248: {
249: int pin[2], pout[2], reserved[2];
250:
251: if (verbose_mode)
1.1.1.10 christos 252: fmprintf(stderr,
1.1 christos 253: "Executing: program %s host %s, user %s, command %s\n",
1.1.1.22 christos 254: program, host,
1.1 christos 255: remuser ? remuser : "(unspecified)", cmd);
256:
1.1.1.13 christos 257: if (port == -1)
258: port = sshport;
259:
1.1 christos 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: */
1.1.1.16 christos 264: if (pipe(reserved) == -1)
1.1 christos 265: fatal("pipe: %s", strerror(errno));
266:
267: /* Create a socket pair for communicating with ssh. */
1.1.1.16 christos 268: if (pipe(pin) == -1)
1.1 christos 269: fatal("pipe: %s", strerror(errno));
1.1.1.16 christos 270: if (pipe(pout) == -1)
1.1 christos 271: fatal("pipe: %s", strerror(errno));
272:
273: /* Free the reserved descriptors. */
274: close(reserved[0]);
275: close(reserved[1]);
276:
1.1.1.17 christos 277: ssh_signal(SIGTSTP, suspchild);
278: ssh_signal(SIGTTIN, suspchild);
279: ssh_signal(SIGTTOU, suspchild);
1.1.1.2 adam 280:
1.1 christos 281: /* Fork a child to execute the command on the remote host using ssh. */
1.1.1.22 christos 282: *pid = fork();
283: if (*pid == 0) {
1.1 christos 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:
1.1.1.22 christos 292: replacearg(&args, 0, "%s", program);
1.1.1.13 christos 293: if (port != -1) {
294: addargs(&args, "-p");
295: addargs(&args, "%d", port);
296: }
1.1.1.2 adam 297: if (remuser != NULL) {
298: addargs(&args, "-l");
299: addargs(&args, "%s", remuser);
300: }
1.1.1.22 christos 301: if (subsystem)
302: addargs(&args, "-s");
1.1.1.2 adam 303: addargs(&args, "--");
1.1 christos 304: addargs(&args, "%s", host);
305: addargs(&args, "%s", cmd);
306:
1.1.1.22 christos 307: execvp(program, args.list);
308: perror(program);
1.1 christos 309: exit(1);
1.1.1.22 christos 310: } else if (*pid == -1) {
1.1 christos 311: fatal("fork: %s", strerror(errno));
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];
1.1.1.17 christos 318: ssh_signal(SIGTERM, killchild);
319: ssh_signal(SIGINT, killchild);
320: ssh_signal(SIGHUP, killchild);
1.1 christos 321: return 0;
322: }
323:
1.1.1.3 christos 324: /*
1.1.1.14 christos 325: * This function executes a command similar to do_cmd(), but expects the
1.1.1.3 christos 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
1.1.1.22 christos 330: do_cmd2(char *host, char *remuser, int port, char *cmd,
331: int fdin, int fdout)
1.1.1.3 christos 332: {
333: int status;
1.1.1.22 christos 334: pid_t pid;
1.1.1.3 christos 335:
336: if (verbose_mode)
1.1.1.10 christos 337: fmprintf(stderr,
1.1.1.3 christos 338: "Executing: 2nd program %s host %s, user %s, command %s\n",
339: ssh_program, host,
340: remuser ? remuser : "(unspecified)", cmd);
341:
1.1.1.13 christos 342: if (port == -1)
343: port = sshport;
344:
1.1.1.3 christos 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);
1.1.1.13 christos 352: if (port != -1) {
353: addargs(&args, "-p");
354: addargs(&args, "%d", port);
355: }
1.1.1.3 christos 356: if (remuser != NULL) {
357: addargs(&args, "-l");
358: addargs(&args, "%s", remuser);
359: }
1.1.1.18 christos 360: addargs(&args, "-oBatchMode=yes");
1.1.1.3 christos 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 christos 377: typedef struct {
378: size_t cnt;
379: char *buf;
380: } BUF;
381:
382: BUF *allocbuf(BUF *, int, int);
383: void lostconn(int);
384: int okname(char *);
1.1.1.19 christos 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)));
1.1 christos 390: void verifydir(char *);
391:
392: struct passwd *pwd;
393: uid_t userid;
1.1.1.22 christos 394: int errs, remin, remout, remin2, remout2;
1.1.1.15 christos 395: int Tflag, pflag, iamremote, iamrecursive, targetshouldbedirectory;
1.1 christos 396:
397: #define CMDNEEDS 64
398: char cmd[CMDNEEDS]; /* must hold "rcp -r -p -d\0" */
399:
1.1.1.22 christos 400: enum scp_mode_e {
401: MODE_SCP,
402: MODE_SFTP
403: };
404:
1.1 christos 405: int response(void);
406: void rsource(char *, struct stat *);
1.1.1.15 christos 407: void sink(int, char *[], const char *);
1.1 christos 408: void source(int, char *[]);
1.1.1.22 christos 409: void tolocal(int, char *[], enum scp_mode_e, char *sftp_direct);
410: void toremote(int, char *[], enum scp_mode_e, char *sftp_direct);
1.1 christos 411: void usage(void);
412:
1.1.1.22 christos 413: void source_sftp(int, char *, char *, struct sftp_conn *);
414: void sink_sftp(int, char *, const char *, struct sftp_conn *);
415: void throughlocal_sftp(struct sftp_conn *, struct sftp_conn *,
416: char *, char *);
417:
1.1 christos 418: int
419: main(int argc, char **argv)
420: {
421: int ch, fflag, tflag, status, n;
1.1.1.22 christos 422: char **newargv, *argv0;
1.1.1.3 christos 423: const char *errstr;
1.1 christos 424: extern char *optarg;
425: extern int optind;
1.1.1.25 christos 426: enum scp_mode_e mode = MODE_SFTP;
1.1.1.22 christos 427: char *sftp_direct = NULL;
1.1 christos 428:
429: /* Ensure that fds 0, 1 and 2 are open or directed to /dev/null */
430: sanitise_stdfd();
431:
1.1.1.10 christos 432: setlocale(LC_CTYPE, "");
433:
1.1 christos 434: /* Copy argv, because we modify it */
1.1.1.22 christos 435: argv0 = argv[0];
1.1.1.11 christos 436: newargv = xcalloc(MAXIMUM(argc + 1, 1), sizeof(*newargv));
1.1 christos 437: for (n = 0; n < argc; n++)
438: newargv[n] = xstrdup(argv[n]);
439: argv = newargv;
440:
1.1.1.23 christos 441: log_init(argv0, log_level, SYSLOG_FACILITY_USER, 2);
1.1.1.22 christos 442:
1.1 christos 443: memset(&args, '\0', sizeof(args));
1.1.1.3 christos 444: memset(&remote_remote_args, '\0', sizeof(remote_remote_args));
445: args.list = remote_remote_args.list = NULL;
1.1 christos 446: addargs(&args, "%s", ssh_program);
447: addargs(&args, "-x");
1.1.1.3 christos 448: addargs(&args, "-oPermitLocalCommand=no");
449: addargs(&args, "-oClearAllForwardings=yes");
1.1.1.13 christos 450: addargs(&args, "-oRemoteCommand=none");
451: addargs(&args, "-oRequestTTY=no");
1.1 christos 452:
1.1.1.15 christos 453: fflag = Tflag = tflag = 0;
454: while ((ch = getopt(argc, argv,
1.1.1.22 christos 455: "12346ABCTdfOpqRrstvD:F:J:M:P:S:c:i:l:o:")) != -1) {
1.1 christos 456: switch (ch) {
457: /* User-visible flags. */
458: case '1':
1.1.1.12 christos 459: fatal("SSH protocol v.1 is no longer supported");
460: break;
1.1 christos 461: case '2':
1.1.1.12 christos 462: /* Ignored */
463: break;
1.1.1.19 christos 464: case 'A':
1.1 christos 465: case '4':
466: case '6':
467: case 'C':
468: addargs(&args, "-%c", ch);
1.1.1.3 christos 469: addargs(&remote_remote_args, "-%c", ch);
470: break;
1.1.1.22 christos 471: case 'D':
472: sftp_direct = optarg;
473: break;
1.1.1.3 christos 474: case '3':
475: throughlocal = 1;
1.1 christos 476: break;
1.1.1.22 christos 477: case 'R':
478: throughlocal = 0;
479: break;
1.1 christos 480: case 'o':
481: case 'c':
482: case 'i':
483: case 'F':
1.1.1.15 christos 484: case 'J':
1.1.1.3 christos 485: addargs(&remote_remote_args, "-%c", ch);
486: addargs(&remote_remote_args, "%s", optarg);
1.1.1.2 adam 487: addargs(&args, "-%c", ch);
488: addargs(&args, "%s", optarg);
1.1 christos 489: break;
1.1.1.22 christos 490: case 'O':
491: mode = MODE_SCP;
492: break;
493: case 's':
494: mode = MODE_SFTP;
495: break;
1.1 christos 496: case 'P':
1.1.1.13 christos 497: sshport = a2port(optarg);
498: if (sshport <= 0)
499: fatal("bad port \"%s\"\n", optarg);
1.1 christos 500: break;
501: case 'B':
1.1.1.3 christos 502: addargs(&remote_remote_args, "-oBatchmode=yes");
503: addargs(&args, "-oBatchmode=yes");
1.1 christos 504: break;
505: case 'l':
1.1.1.3 christos 506: limit_kbps = strtonum(optarg, 1, 100 * 1024 * 1024,
507: &errstr);
508: if (errstr != NULL)
1.1 christos 509: usage();
1.1.1.3 christos 510: limit_kbps *= 1024; /* kbps */
511: bandwidth_limit_init(&bwlimit, limit_kbps, COPY_BUFLEN);
1.1 christos 512: break;
513: case 'p':
514: pflag = 1;
515: break;
516: case 'r':
517: iamrecursive = 1;
518: break;
519: case 'S':
520: ssh_program = xstrdup(optarg);
521: break;
522: case 'v':
523: addargs(&args, "-v");
1.1.1.3 christos 524: addargs(&remote_remote_args, "-v");
1.1.1.22 christos 525: if (verbose_mode == 0)
526: log_level = SYSLOG_LEVEL_DEBUG1;
527: else if (log_level < SYSLOG_LEVEL_DEBUG3)
528: log_level++;
1.1 christos 529: verbose_mode = 1;
530: break;
531: case 'q':
532: addargs(&args, "-q");
1.1.1.3 christos 533: addargs(&remote_remote_args, "-q");
1.1 christos 534: showprogress = 0;
535: break;
536:
537: /* Server options. */
538: case 'd':
539: targetshouldbedirectory = 1;
540: break;
541: case 'f': /* "from" */
542: iamremote = 1;
543: fflag = 1;
544: break;
545: case 't': /* "to" */
546: iamremote = 1;
547: tflag = 1;
548: break;
1.1.1.15 christos 549: case 'T':
550: Tflag = 1;
551: break;
1.1 christos 552: default:
553: usage();
554: }
1.1.1.15 christos 555: }
1.1 christos 556: argc -= optind;
557: argv += optind;
558:
1.1.1.23 christos 559: log_init(argv0, log_level, SYSLOG_FACILITY_USER, 2);
1.1.1.22 christos 560:
1.1.1.19 christos 561: /* Do this last because we want the user to be able to override it */
562: addargs(&args, "-oForwardAgent=no");
563:
1.1.1.22 christos 564: if (iamremote)
565: mode = MODE_SCP;
566:
1.1 christos 567: if ((pwd = getpwuid(userid = getuid())) == NULL)
568: fatal("unknown user %u", (u_int) userid);
569:
570: if (!isatty(STDOUT_FILENO))
571: showprogress = 0;
572:
1.1.1.9 christos 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: }
582:
1.1 christos 583: remin = STDIN_FILENO;
584: remout = STDOUT_FILENO;
585:
586: if (fflag) {
587: /* Follow "protocol", send data. */
588: (void) response();
589: source(argc, argv);
590: exit(errs != 0);
591: }
592: if (tflag) {
593: /* Receive data. */
1.1.1.15 christos 594: sink(argc, argv, NULL);
1.1 christos 595: exit(errs != 0);
596: }
597: if (argc < 2)
598: usage();
599: if (argc > 2)
600: targetshouldbedirectory = 1;
601:
602: remin = remout = -1;
603: do_cmd_pid = -1;
604: /* Command to be executed on remote system using "ssh". */
605: (void) snprintf(cmd, sizeof cmd, "scp%s%s%s%s",
606: verbose_mode ? " -v" : "",
607: iamrecursive ? " -r" : "", pflag ? " -p" : "",
608: targetshouldbedirectory ? " -d" : "");
609:
1.1.1.17 christos 610: (void) ssh_signal(SIGPIPE, lostconn);
1.1 christos 611:
1.1.1.13 christos 612: if (colon(argv[argc - 1])) /* Dest is remote host. */
1.1.1.22 christos 613: toremote(argc, argv, mode, sftp_direct);
1.1 christos 614: else {
615: if (targetshouldbedirectory)
616: verifydir(argv[argc - 1]);
1.1.1.22 christos 617: tolocal(argc, argv, mode, sftp_direct); /* Dest is local host. */
1.1 christos 618: }
619: /*
620: * Finally check the exit status of the ssh process, if one was forked
621: * and no error has occurred yet
622: */
1.1.1.23 christos 623: if (do_cmd_pid != -1 && (mode == MODE_SFTP || errs == 0)) {
1.1 christos 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: }
634: }
635: exit(errs != 0);
636: }
637:
1.1.1.3 christos 638: /* Callback from atomicio6 to update progress meter and limit bandwidth */
639: static int
640: scpio(void *_cnt, size_t s)
1.1 christos 641: {
1.1.1.3 christos 642: off_t *cnt = (off_t *)_cnt;
643:
644: *cnt += s;
1.1.1.15 christos 645: refresh_progress_meter(0);
1.1.1.3 christos 646: if (limit_kbps > 0)
647: bandwidth_limit(&bwlimit, s);
648: return 0;
1.1 christos 649: }
650:
1.1.1.5 christos 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:
1.1.1.13 christos 669: static int
670: parse_scp_uri(const char *uri, char **userp, char **hostp, int *portp,
1.1.1.21 christos 671: char **pathp)
1.1.1.13 christos 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:
1.1.1.15 christos 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)
1.1.1.20 christos 889: fatal_f("invalid brace pattern \"%s\"", cp);
1.1.1.15 christos 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:
1.1.1.22 christos 928: static struct sftp_conn *
929: do_sftp_connect(char *host, char *user, int port, char *sftp_direct,
930: int *reminp, int *remoutp, int *pidp)
931: {
932: if (sftp_direct == NULL) {
933: if (do_cmd(ssh_program, host, user, port, 1, "sftp",
934: reminp, remoutp, pidp) < 0)
935: return NULL;
936:
937: } else {
1.1.1.25 christos 938: freeargs(&args);
1.1.1.22 christos 939: addargs(&args, "sftp-server");
940: if (do_cmd(sftp_direct, host, NULL, -1, 0, "sftp",
941: reminp, remoutp, pidp) < 0)
942: return NULL;
943: }
944: return do_init(*reminp, *remoutp, 32768, 64, limit_kbps);
945: }
946:
1.1 christos 947: void
1.1.1.22 christos 948: toremote(int argc, char **argv, enum scp_mode_e mode, char *sftp_direct)
1.1 christos 949: {
1.1.1.13 christos 950: char *suser = NULL, *host = NULL, *src = NULL;
951: char *bp, *tuser, *thost, *targ;
952: int sport = -1, tport = -1;
1.1.1.22 christos 953: struct sftp_conn *conn = NULL, *conn2 = NULL;
1.1 christos 954: arglist alist;
1.1.1.22 christos 955: int i, r, status;
1.1.1.3 christos 956: u_int j;
1.1 christos 957:
958: memset(&alist, '\0', sizeof(alist));
959: alist.list = NULL;
960:
1.1.1.13 christos 961: /* Parse target */
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: }
968: if (r != 0) {
969: if (parse_user_host_path(argv[argc - 1], &tuser, &thost,
970: &targ) == -1) {
971: fmprintf(stderr, "%s: invalid target\n", argv[argc - 1]);
972: ++errs;
973: goto out;
974: }
1.1 christos 975: }
976:
1.1.1.13 christos 977: /* Parse source files */
1.1 christos 978: for (i = 0; i < argc - 1; i++) {
1.1.1.13 christos 979: free(suser);
980: free(host);
981: free(src);
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) {
989: parse_user_host_path(argv[i], &suser, &host, &src);
990: }
991: if (suser != NULL && !okname(suser)) {
992: ++errs;
993: continue;
994: }
995: if (host && throughlocal) { /* extended remote to remote */
1.1.1.22 christos 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);
1025: throughlocal_sftp(conn2, conn, src, targ);
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);
1039: if (do_cmd(ssh_program, host, suser, sport, 0,
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: }
1.1.1.13 christos 1053: } else if (host) { /* standard remote to remote */
1.1.1.22 christos 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: }
1.1.1.13 christos 1063: if (tport != -1 && tport != SSH_DEFAULT_PORT) {
1064: /* This would require the remote support URIs */
1065: fatal("target port not supported with two "
1.1.1.22 christos 1066: "remote hosts and the -R option");
1.1.1.13 christos 1067: }
1068:
1.1 christos 1069: freeargs(&alist);
1070: addargs(&alist, "%s", ssh_program);
1071: addargs(&alist, "-x");
1.1.1.3 christos 1072: addargs(&alist, "-oClearAllForwardings=yes");
1.1 christos 1073: addargs(&alist, "-n");
1.1.1.3 christos 1074: for (j = 0; j < remote_remote_args.num; j++) {
1075: addargs(&alist, "%s",
1076: remote_remote_args.list[j]);
1077: }
1.1.1.13 christos 1078:
1079: if (sport != -1) {
1080: addargs(&alist, "-p");
1081: addargs(&alist, "%d", sport);
1082: }
1083: if (suser) {
1.1 christos 1084: addargs(&alist, "-l");
1085: addargs(&alist, "%s", suser);
1086: }
1.1.1.2 adam 1087: addargs(&alist, "--");
1.1 christos 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)
1095: errs = 1;
1096: } else { /* local to remote */
1.1.1.22 christos 1097: if (mode == MODE_SFTP) {
1098: if (remin == -1) {
1099: /* Connect to remote now */
1100: conn = do_sftp_connect(thost, tuser,
1101: tport, sftp_direct,
1102: &remin, &remout, &do_cmd_pid);
1103: if (conn == NULL) {
1104: fatal("Unable to open sftp "
1105: "connection");
1106: }
1107: }
1108:
1109: /* The protocol */
1110: source_sftp(1, argv[i], targ, conn);
1111: continue;
1112: }
1113: /* SCP */
1.1 christos 1114: if (remin == -1) {
1.1.1.4 christos 1115: xasprintf(&bp, "%s -t %s%s", cmd,
1116: *targ == '-' ? "-- " : "", targ);
1.1.1.22 christos 1117: if (do_cmd(ssh_program, thost, tuser, tport, 0,
1118: bp, &remin, &remout, &do_cmd_pid) < 0)
1.1 christos 1119: exit(1);
1120: if (response() < 0)
1121: exit(1);
1.1.1.5 christos 1122: free(bp);
1.1 christos 1123: }
1124: source(1, argv + i);
1125: }
1126: }
1.1.1.13 christos 1127: out:
1.1.1.22 christos 1128: if (mode == MODE_SFTP)
1129: free(conn);
1.1.1.13 christos 1130: free(tuser);
1131: free(thost);
1132: free(targ);
1133: free(suser);
1134: free(host);
1135: free(src);
1.1 christos 1136: }
1137:
1138: void
1.1.1.22 christos 1139: tolocal(int argc, char **argv, enum scp_mode_e mode, char *sftp_direct)
1.1 christos 1140: {
1.1.1.13 christos 1141: char *bp, *host = NULL, *src = NULL, *suser = NULL;
1.1 christos 1142: arglist alist;
1.1.1.22 christos 1143: struct sftp_conn *conn = NULL;
1.1.1.13 christos 1144: int i, r, sport = -1;
1.1 christos 1145:
1146: memset(&alist, '\0', sizeof(alist));
1147: alist.list = NULL;
1148:
1149: for (i = 0; i < argc - 1; i++) {
1.1.1.13 christos 1150: free(suser);
1151: free(host);
1152: free(src);
1153: r = parse_scp_uri(argv[i], &suser, &host, &sport, &src);
1154: if (r == -1) {
1155: fmprintf(stderr, "%s: invalid uri\n", argv[i]);
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. */
1.1 christos 1166: freeargs(&alist);
1167: addargs(&alist, "%s", _PATH_CP);
1168: if (iamrecursive)
1169: addargs(&alist, "-r");
1170: if (pflag)
1171: addargs(&alist, "-p");
1.1.1.2 adam 1172: addargs(&alist, "--");
1.1 christos 1173: addargs(&alist, "%s", argv[i]);
1174: addargs(&alist, "%s", argv[argc-1]);
1175: if (do_local_cmd(&alist))
1176: ++errs;
1177: continue;
1178: }
1.1.1.13 christos 1179: /* Remote to local. */
1.1.1.22 christos 1180: if (mode == MODE_SFTP) {
1181: conn = do_sftp_connect(host, suser, sport,
1182: sftp_direct, &remin, &remout, &do_cmd_pid);
1183: if (conn == NULL) {
1.1.1.23 christos 1184: error("sftp connection failed");
1.1.1.22 christos 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 */
1.1.1.4 christos 1199: xasprintf(&bp, "%s -f %s%s",
1200: cmd, *src == '-' ? "-- " : "", src);
1.1.1.22 christos 1201: if (do_cmd(ssh_program, host, suser, sport, 0, bp,
1202: &remin, &remout, &do_cmd_pid) < 0) {
1.1.1.5 christos 1203: free(bp);
1.1 christos 1204: ++errs;
1205: continue;
1206: }
1.1.1.5 christos 1207: free(bp);
1.1.1.15 christos 1208: sink(1, argv + argc - 1, src);
1.1 christos 1209: (void) close(remin);
1210: remin = remout = -1;
1211: }
1.1.1.13 christos 1212: free(suser);
1213: free(host);
1214: free(src);
1.1 christos 1215: }
1216:
1.1.1.22 christos 1217: /* Prepare remote path, handling ~ by assuming cwd is the homedir */
1218: static char *
1219: prepare_remote_path(struct sftp_conn *conn, const char *path)
1220: {
1.1.1.24 christos 1221: size_t nslash;
1222:
1.1.1.22 christos 1223: /* Handle ~ prefixed paths */
1224: if (*path == '\0' || strcmp(path, "~") == 0)
1225: return xstrdup(".");
1.1.1.24 christos 1226: if (*path != '~')
1227: return xstrdup(path);
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: }
1.1.1.22 christos 1233: if (can_expand_path(conn))
1234: return do_expand_path(conn, path);
1235: /* No protocol extension */
1.1.1.23 christos 1236: error("server expand-path extension is required "
1237: "for ~user paths in SFTP mode");
1.1.1.22 christos 1238: return NULL;
1239: }
1240:
1241: void
1242: source_sftp(int argc, char *src, char *targ, struct sftp_conn *conn)
1243: {
1244: char *target = NULL, *filename = NULL, *abs_dst = NULL;
1.1.1.24 christos 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);
1.1.1.22 christos 1253: if ((filename = basename(src)) == NULL)
1.1.1.24 christos 1254: fatal("basename \"%s\": %s", src, strerror(errno));
1.1.1.22 christos 1255:
1256: /*
1257: * No need to glob here - the local shell already took care of
1258: * the expansions
1259: */
1260: if ((target = prepare_remote_path(conn, targ)) == NULL)
1261: cleanup_exit(255);
1262: target_is_dir = remote_is_dir(conn, target);
1263: if (targetshouldbedirectory && !target_is_dir) {
1.1.1.24 christos 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;
1.1.1.22 christos 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:
1.1.1.24 christos 1279: if (src_is_dir && iamrecursive) {
1.1.1.22 christos 1280: if (upload_dir(conn, src, abs_dst, pflag,
1.1.1.26! christos 1281: SFTP_PROGRESS_ONLY, 0, 0, 1, 1) != 0) {
1.1.1.24 christos 1282: error("failed to upload directory %s to %s", src, targ);
1.1.1.23 christos 1283: errs = 1;
1.1.1.22 christos 1284: }
1.1.1.26! christos 1285: } else if (do_upload(conn, src, abs_dst, pflag, 0, 0, 1) != 0) {
1.1.1.24 christos 1286: error("failed to upload file %s to %s", src, targ);
1.1.1.23 christos 1287: errs = 1;
1288: }
1.1.1.22 christos 1289:
1290: free(abs_dst);
1291: free(target);
1292: }
1293:
1.1 christos 1294: void
1295: source(int argc, char **argv)
1296: {
1297: struct stat stb;
1298: static BUF buffer;
1299: BUF *bp;
1300: off_t i, statbytes;
1.1.1.6 christos 1301: size_t amt, nr;
1.1 christos 1302: int fd = -1, haderr, indx;
1.1.1.16 christos 1303: char *last, *name, buf[PATH_MAX + 128], encname[PATH_MAX];
1.1 christos 1304: int len;
1305:
1306: for (indx = 0; indx < argc; ++indx) {
1307: name = argv[indx];
1308: statbytes = 0;
1309: len = strlen(name);
1310: while (len > 1 && name[len-1] == '/')
1311: name[--len] = '\0';
1.1.1.24 christos 1312: if ((fd = open(name, O_RDONLY|O_NONBLOCK)) == -1)
1.1 christos 1313: goto syserr;
1314: if (strchr(name, '\n') != NULL) {
1315: strnvis(encname, name, sizeof(encname), VIS_NL);
1316: name = encname;
1317: }
1.1.1.16 christos 1318: if (fstat(fd, &stb) == -1) {
1.1 christos 1319: syserr: run_err("%s: %s", name, strerror(errno));
1320: goto next;
1321: }
1322: if (stb.st_size < 0) {
1323: run_err("%s: %s", name, "Negative file size");
1324: goto next;
1325: }
1326: unset_nonblock(fd);
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;
1344: curfile = last;
1345: if (pflag) {
1.1.1.5 christos 1346: if (do_times(remout, verbose_mode, &stb) < 0)
1.1 christos 1347: goto next;
1348: }
1349: #define FILEMODEMASK (S_ISUID|S_ISGID|S_IRWXU|S_IRWXG|S_IRWXO)
1350: snprintf(buf, sizeof buf, "C%04o %lld %s\n",
1351: (u_int) (stb.st_mode & FILEMODEMASK),
1352: (long long)stb.st_size, last);
1.1.1.10 christos 1353: if (verbose_mode)
1354: fmprintf(stderr, "Sending file modes: %s", buf);
1.1 christos 1355: (void) atomicio(vwrite, remout, buf, strlen(buf));
1356: if (response() < 0)
1357: goto next;
1358: if ((bp = allocbuf(&buffer, fd, COPY_BUFLEN)) == NULL) {
1359: next: if (fd != -1) {
1360: (void) close(fd);
1361: fd = -1;
1362: }
1363: continue;
1364: }
1365: if (showprogress)
1366: start_progress_meter(curfile, stb.st_size, &statbytes);
1367: set_nonblock(remout);
1368: for (haderr = i = 0; i < stb.st_size; i += bp->cnt) {
1369: amt = bp->cnt;
1370: if (i + (off_t)amt > stb.st_size)
1371: amt = stb.st_size - i;
1372: if (!haderr) {
1.1.1.6 christos 1373: if ((nr = atomicio(read, fd,
1374: bp->buf, amt)) != amt) {
1.1 christos 1375: haderr = errno;
1.1.1.6 christos 1376: memset(bp->buf + nr, 0, amt - nr);
1377: }
1.1 christos 1378: }
1379: /* Keep writing after error to retain sync */
1380: if (haderr) {
1381: (void)atomicio(vwrite, remout, bp->buf, amt);
1.1.1.6 christos 1382: memset(bp->buf, 0, amt);
1.1 christos 1383: continue;
1384: }
1.1.1.3 christos 1385: if (atomicio6(vwrite, remout, bp->buf, amt, scpio,
1.1 christos 1386: &statbytes) != amt)
1387: haderr = errno;
1388: }
1389: unset_nonblock(remout);
1390:
1391: if (fd != -1) {
1.1.1.16 christos 1392: if (close(fd) == -1 && !haderr)
1.1 christos 1393: haderr = errno;
1394: fd = -1;
1395: }
1396: if (!haderr)
1397: (void) atomicio(vwrite, remout, "", 1);
1398: else
1399: run_err("%s: %s", name, strerror(haderr));
1400: (void) response();
1.1.1.10 christos 1401: if (showprogress)
1402: stop_progress_meter();
1.1 christos 1403: }
1404: }
1405:
1406: void
1407: rsource(char *name, struct stat *statp)
1408: {
1409: DIR *dirp;
1410: struct dirent *dp;
1.1.1.7 christos 1411: char *last, *vect[1], path[PATH_MAX];
1.1 christos 1412:
1413: if (!(dirp = opendir(name))) {
1414: run_err("%s: %s", name, strerror(errno));
1415: return;
1416: }
1417: last = strrchr(name, '/');
1.1.1.9 christos 1418: if (last == NULL)
1.1 christos 1419: last = name;
1420: else
1421: last++;
1422: if (pflag) {
1.1.1.5 christos 1423: if (do_times(remout, verbose_mode, statp) < 0) {
1.1 christos 1424: closedir(dirp);
1425: return;
1426: }
1427: }
1428: (void) snprintf(path, sizeof path, "D%04o %d %.1024s\n",
1429: (u_int) (statp->st_mode & FILEMODEMASK), 0, last);
1430: if (verbose_mode)
1.1.1.10 christos 1431: fmprintf(stderr, "Entering directory: %s", path);
1.1 christos 1432: (void) atomicio(vwrite, remout, path, strlen(path));
1433: if (response() < 0) {
1434: closedir(dirp);
1435: return;
1436: }
1437: while ((dp = readdir(dirp)) != NULL) {
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: }
1446: (void) snprintf(path, sizeof path, "%s/%s", name, dp->d_name);
1447: vect[0] = path;
1448: source(1, vect);
1449: }
1450: (void) closedir(dirp);
1451: (void) atomicio(vwrite, remout, "E\n", 2);
1452: (void) response();
1453: }
1454:
1.1.1.22 christos 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;
1461: char *filename, *tmp = NULL;
1.1.1.24 christos 1462: int i, r, err = 0, dst_is_dir;
1463: struct stat st;
1.1.1.22 christos 1464:
1465: memset(&g, 0, sizeof(g));
1.1.1.24 christos 1466:
1.1.1.22 christos 1467: /*
1468: * Here, we need remote glob as SFTP can not depend on remote shell
1469: * expansions
1470: */
1471: if ((abs_src = prepare_remote_path(conn, src)) == NULL) {
1472: err = -1;
1473: goto out;
1474: }
1475:
1476: debug3_f("copying remote %s to local %s", abs_src, dst);
1477: if ((r = remote_glob(conn, abs_src, GLOB_MARK, NULL, &g)) != 0) {
1478: if (r == GLOB_NOSPACE)
1.1.1.24 christos 1479: error("%s: too many glob matches", src);
1.1.1.22 christos 1480: else
1.1.1.24 christos 1481: error("%s: %s", src, strerror(ENOENT));
1.1.1.22 christos 1482: err = -1;
1483: goto out;
1484: }
1485:
1.1.1.24 christos 1486: if ((r = stat(dst, &st)) != 0)
1487: debug2_f("stat local \"%s\": %s", dst, strerror(errno));
1488: dst_is_dir = r == 0 && S_ISDIR(st.st_mode);
1489:
1490: if (g.gl_matchc > 1 && !dst_is_dir) {
1491: if (r == 0) {
1492: error("Multiple files match pattern, but destination "
1493: "\"%s\" is not a directory", dst);
1494: err = -1;
1495: goto out;
1496: }
1497: debug2_f("creating destination \"%s\"", dst);
1498: if (mkdir(dst, 0777) != 0) {
1499: error("local mkdir \"%s\": %s", dst, strerror(errno));
1500: err = -1;
1501: goto out;
1502: }
1503: dst_is_dir = 1;
1.1.1.22 christos 1504: }
1505:
1506: for (i = 0; g.gl_pathv[i] && !interrupted; i++) {
1507: tmp = xstrdup(g.gl_pathv[i]);
1508: if ((filename = basename(tmp)) == NULL) {
1509: error("basename %s: %s", tmp, strerror(errno));
1510: err = -1;
1511: goto out;
1512: }
1513:
1.1.1.24 christos 1514: if (dst_is_dir)
1.1.1.22 christos 1515: abs_dst = path_append(dst, filename);
1516: else
1517: abs_dst = xstrdup(dst);
1518:
1519: debug("Fetching %s to %s\n", g.gl_pathv[i], abs_dst);
1520: if (globpath_is_dir(g.gl_pathv[i]) && iamrecursive) {
1521: if (download_dir(conn, g.gl_pathv[i], abs_dst, NULL,
1.1.1.26! christos 1522: pflag, SFTP_PROGRESS_ONLY, 0, 0, 1, 1) == -1)
1.1.1.22 christos 1523: err = -1;
1524: } else {
1525: if (do_download(conn, g.gl_pathv[i], abs_dst, NULL,
1.1.1.26! christos 1526: pflag, 0, 0, 1) == -1)
1.1.1.22 christos 1527: err = -1;
1528: }
1529: free(abs_dst);
1530: abs_dst = NULL;
1531: free(tmp);
1532: tmp = NULL;
1533: }
1534:
1535: out:
1536: free(abs_src);
1537: free(tmp);
1538: globfree(&g);
1.1.1.23 christos 1539: if (err == -1)
1540: errs = 1;
1.1.1.22 christos 1541: }
1542:
1543:
1.1.1.12 christos 1544: #define TYPE_OVERFLOW(type, val) \
1545: ((sizeof(type) == 4 && (val) > INT32_MAX) || \
1546: (sizeof(type) == 8 && (val) > INT64_MAX) || \
1547: (sizeof(type) != 4 && sizeof(type) != 8))
1548:
1.1 christos 1549: void
1.1.1.15 christos 1550: sink(int argc, char **argv, const char *src)
1.1 christos 1551: {
1552: static BUF buffer;
1553: struct stat stb;
1554: BUF *bp;
1555: off_t i;
1556: size_t j, count;
1557: int amt, exists, first, ofd;
1558: mode_t mode, omode, mask;
1559: off_t size, statbytes;
1.1.1.5 christos 1560: unsigned long long ull;
1.1.1.18 christos 1561: int setimes, targisdir, wrerr;
1.1.1.10 christos 1562: char ch, *cp, *np, *targ, *why, *vect[1], buf[2048], visbuf[2048];
1.1.1.15 christos 1563: char **patterns = NULL;
1564: size_t n, npatterns = 0;
1.1 christos 1565: struct timeval tv[2];
1566:
1567: #define atime tv[0]
1568: #define mtime tv[1]
1569: #define SCREWUP(str) { why = str; goto screwup; }
1570:
1.1.1.12 christos 1571: if (TYPE_OVERFLOW(time_t, 0) || TYPE_OVERFLOW(off_t, 0))
1572: SCREWUP("Unexpected off_t/time_t size");
1573:
1.1 christos 1574: setimes = targisdir = 0;
1575: mask = umask(0);
1576: if (!pflag)
1577: (void) umask(mask);
1578: if (argc != 1) {
1579: run_err("ambiguous target");
1580: exit(1);
1581: }
1582: targ = *argv;
1583: if (targetshouldbedirectory)
1584: verifydir(targ);
1585:
1586: (void) atomicio(vwrite, remout, "", 1);
1587: if (stat(targ, &stb) == 0 && S_ISDIR(stb.st_mode))
1588: targisdir = 1;
1.1.1.15 christos 1589: if (src != NULL && !iamrecursive && !Tflag) {
1590: /*
1591: * Prepare to try to restrict incoming filenames to match
1592: * the requested destination file glob.
1593: */
1594: if (brace_expand(src, &patterns, &npatterns) != 0)
1.1.1.20 christos 1595: fatal_f("could not expand pattern");
1.1.1.15 christos 1596: }
1.1 christos 1597: for (first = 1;; first = 0) {
1598: cp = buf;
1599: if (atomicio(read, remin, cp, 1) != 1)
1.1.1.15 christos 1600: goto done;
1.1 christos 1601: if (*cp++ == '\n')
1602: SCREWUP("unexpected <newline>");
1603: do {
1604: if (atomicio(read, remin, &ch, sizeof(ch)) != sizeof(ch))
1605: SCREWUP("lost connection");
1606: *cp++ = ch;
1607: } while (cp < &buf[sizeof(buf) - 1] && ch != '\n');
1608: *cp = 0;
1609: if (verbose_mode)
1.1.1.10 christos 1610: fmprintf(stderr, "Sink: %s", buf);
1.1 christos 1611:
1612: if (buf[0] == '\01' || buf[0] == '\02') {
1.1.1.10 christos 1613: if (iamremote == 0) {
1614: (void) snmprintf(visbuf, sizeof(visbuf),
1615: NULL, "%s", buf + 1);
1.1 christos 1616: (void) atomicio(vwrite, STDERR_FILENO,
1.1.1.10 christos 1617: visbuf, strlen(visbuf));
1618: }
1.1 christos 1619: if (buf[0] == '\02')
1620: exit(1);
1621: ++errs;
1622: continue;
1623: }
1624: if (buf[0] == 'E') {
1625: (void) atomicio(vwrite, remout, "", 1);
1.1.1.15 christos 1626: goto done;
1.1 christos 1627: }
1628: if (ch == '\n')
1629: *--cp = 0;
1630:
1631: cp = buf;
1632: if (*cp == 'T') {
1633: setimes++;
1634: cp++;
1.1.1.5 christos 1635: if (!isdigit((unsigned char)*cp))
1636: SCREWUP("mtime.sec not present");
1637: ull = strtoull(cp, &cp, 10);
1.1 christos 1638: if (!cp || *cp++ != ' ')
1639: SCREWUP("mtime.sec not delimited");
1.1.1.12 christos 1640: if (TYPE_OVERFLOW(time_t, ull))
1.1.1.5 christos 1641: setimes = 0; /* out of range */
1642: mtime.tv_sec = ull;
1.1 christos 1643: mtime.tv_usec = strtol(cp, &cp, 10);
1.1.1.5 christos 1644: if (!cp || *cp++ != ' ' || mtime.tv_usec < 0 ||
1645: mtime.tv_usec > 999999)
1.1 christos 1646: SCREWUP("mtime.usec not delimited");
1.1.1.5 christos 1647: if (!isdigit((unsigned char)*cp))
1648: SCREWUP("atime.sec not present");
1649: ull = strtoull(cp, &cp, 10);
1.1 christos 1650: if (!cp || *cp++ != ' ')
1651: SCREWUP("atime.sec not delimited");
1.1.1.12 christos 1652: if (TYPE_OVERFLOW(time_t, ull))
1.1.1.5 christos 1653: setimes = 0; /* out of range */
1654: atime.tv_sec = ull;
1.1 christos 1655: atime.tv_usec = strtol(cp, &cp, 10);
1.1.1.5 christos 1656: if (!cp || *cp++ != '\0' || atime.tv_usec < 0 ||
1657: atime.tv_usec > 999999)
1.1 christos 1658: SCREWUP("atime.usec not delimited");
1659: (void) atomicio(vwrite, remout, "", 1);
1660: continue;
1661: }
1662: if (*cp != 'C' && *cp != 'D') {
1663: /*
1664: * Check for the case "rcp remote:foo\* local:bar".
1665: * In this case, the line "No match." can be returned
1666: * by the shell before the rcp command on the remote is
1667: * executed so the ^Aerror_message convention isn't
1668: * followed.
1669: */
1670: if (first) {
1671: run_err("%s", cp);
1672: exit(1);
1673: }
1674: SCREWUP("expected control record");
1675: }
1676: mode = 0;
1677: for (++cp; cp < buf + 5; cp++) {
1678: if (*cp < '0' || *cp > '7')
1679: SCREWUP("bad mode");
1680: mode = (mode << 3) | (*cp - '0');
1681: }
1.1.1.14 christos 1682: if (!pflag)
1683: mode &= ~mask;
1.1 christos 1684: if (*cp++ != ' ')
1685: SCREWUP("mode not delimited");
1686:
1.1.1.12 christos 1687: if (!isdigit((unsigned char)*cp))
1688: SCREWUP("size not present");
1689: ull = strtoull(cp, &cp, 10);
1690: if (!cp || *cp++ != ' ')
1.1 christos 1691: SCREWUP("size not delimited");
1.1.1.12 christos 1692: if (TYPE_OVERFLOW(off_t, ull))
1693: SCREWUP("size out of range");
1694: size = (off_t)ull;
1695:
1.1.1.15 christos 1696: if (*cp == '\0' || strchr(cp, '/') != NULL ||
1697: strcmp(cp, ".") == 0 || strcmp(cp, "..") == 0) {
1.1 christos 1698: run_err("error: unexpected filename: %s", cp);
1699: exit(1);
1700: }
1.1.1.15 christos 1701: if (npatterns > 0) {
1702: for (n = 0; n < npatterns; n++) {
1703: if (fnmatch(patterns[n], cp, 0) == 0)
1704: break;
1705: }
1706: if (n >= npatterns)
1707: SCREWUP("filename does not match request");
1708: }
1.1 christos 1709: if (targisdir) {
1710: static char *namebuf;
1711: static size_t cursize;
1712: size_t need;
1713:
1714: need = strlen(targ) + strlen(cp) + 250;
1715: if (need > cursize) {
1.1.1.5 christos 1716: free(namebuf);
1.1 christos 1717: namebuf = xmalloc(need);
1718: cursize = need;
1719: }
1720: (void) snprintf(namebuf, need, "%s%s%s", targ,
1721: strcmp(targ, "/") ? "/" : "", cp);
1722: np = namebuf;
1723: } else
1724: np = targ;
1725: curfile = cp;
1726: exists = stat(np, &stb) == 0;
1727: if (buf[0] == 'D') {
1728: int mod_flag = pflag;
1729: if (!iamrecursive)
1730: SCREWUP("received directory without -r");
1731: if (exists) {
1732: if (!S_ISDIR(stb.st_mode)) {
1733: errno = ENOTDIR;
1734: goto bad;
1735: }
1736: if (pflag)
1737: (void) chmod(np, mode);
1738: } else {
1.1.1.21 christos 1739: /* Handle copying from a read-only directory */
1.1 christos 1740: mod_flag = 1;
1.1.1.16 christos 1741: if (mkdir(np, mode | S_IRWXU) == -1)
1.1 christos 1742: goto bad;
1743: }
1744: vect[0] = xstrdup(np);
1.1.1.15 christos 1745: sink(1, vect, src);
1.1 christos 1746: if (setimes) {
1747: setimes = 0;
1.1.1.18 christos 1748: (void) utimes(vect[0], tv);
1.1 christos 1749: }
1750: if (mod_flag)
1751: (void) chmod(vect[0], mode);
1.1.1.5 christos 1752: free(vect[0]);
1.1 christos 1753: continue;
1754: }
1755: omode = mode;
1.1.1.5 christos 1756: mode |= S_IWUSR;
1.1.1.16 christos 1757: if ((ofd = open(np, O_WRONLY|O_CREAT, mode)) == -1) {
1.1 christos 1758: bad: run_err("%s: %s", np, strerror(errno));
1759: continue;
1760: }
1761: (void) atomicio(vwrite, remout, "", 1);
1762: if ((bp = allocbuf(&buffer, ofd, COPY_BUFLEN)) == NULL) {
1763: (void) close(ofd);
1764: continue;
1765: }
1766: cp = bp->buf;
1.1.1.18 christos 1767: wrerr = 0;
1.1 christos 1768:
1.1.1.18 christos 1769: /*
1770: * NB. do not use run_err() unless immediately followed by
1771: * exit() below as it may send a spurious reply that might
1772: * desyncronise us from the peer. Use note_err() instead.
1773: */
1.1 christos 1774: statbytes = 0;
1775: if (showprogress)
1776: start_progress_meter(curfile, size, &statbytes);
1777: set_nonblock(remin);
1778: for (count = i = 0; i < size; i += bp->cnt) {
1779: amt = bp->cnt;
1780: if (i + amt > size)
1781: amt = size - i;
1782: count += amt;
1783: do {
1.1.1.3 christos 1784: j = atomicio6(read, remin, cp, amt,
1785: scpio, &statbytes);
1.1 christos 1786: if (j == 0) {
1787: run_err("%s", j != EPIPE ?
1788: strerror(errno) :
1789: "dropped connection");
1790: exit(1);
1791: }
1792: amt -= j;
1793: cp += j;
1794: } while (amt > 0);
1795:
1796: if (count == bp->cnt) {
1797: /* Keep reading so we stay sync'd up. */
1.1.1.18 christos 1798: if (!wrerr) {
1.1 christos 1799: if (atomicio(vwrite, ofd, bp->buf,
1800: count) != count) {
1.1.1.18 christos 1801: note_err("%s: %s", np,
1802: strerror(errno));
1803: wrerr = 1;
1.1 christos 1804: }
1805: }
1806: count = 0;
1807: cp = bp->buf;
1808: }
1809: }
1810: unset_nonblock(remin);
1.1.1.18 christos 1811: if (count != 0 && !wrerr &&
1.1 christos 1812: atomicio(vwrite, ofd, bp->buf, count) != count) {
1.1.1.18 christos 1813: note_err("%s: %s", np, strerror(errno));
1814: wrerr = 1;
1.1 christos 1815: }
1.1.1.18 christos 1816: if (!wrerr && (!exists || S_ISREG(stb.st_mode)) &&
1817: ftruncate(ofd, size) != 0)
1818: note_err("%s: truncate: %s", np, strerror(errno));
1.1 christos 1819: if (pflag) {
1820: if (exists || omode != mode)
1821: if (fchmod(ofd, omode)) {
1.1.1.18 christos 1822: note_err("%s: set mode: %s",
1.1 christos 1823: np, strerror(errno));
1824: }
1825: } else {
1826: if (!exists && omode != mode)
1827: if (fchmod(ofd, omode & ~mask)) {
1.1.1.18 christos 1828: note_err("%s: set mode: %s",
1.1 christos 1829: np, strerror(errno));
1830: }
1831: }
1.1.1.18 christos 1832: if (close(ofd) == -1)
1.1.1.19 christos 1833: note_err("%s: close: %s", np, strerror(errno));
1.1 christos 1834: (void) response();
1.1.1.10 christos 1835: if (showprogress)
1836: stop_progress_meter();
1.1.1.18 christos 1837: if (setimes && !wrerr) {
1.1 christos 1838: setimes = 0;
1.1.1.16 christos 1839: if (utimes(np, tv) == -1) {
1.1.1.18 christos 1840: note_err("%s: set times: %s",
1.1 christos 1841: np, strerror(errno));
1842: }
1843: }
1.1.1.18 christos 1844: /* If no error was noted then signal success for this file */
1845: if (note_err(NULL) == 0)
1.1 christos 1846: (void) atomicio(vwrite, remout, "", 1);
1847: }
1.1.1.15 christos 1848: done:
1849: for (n = 0; n < npatterns; n++)
1850: free(patterns[n]);
1851: free(patterns);
1852: return;
1.1 christos 1853: screwup:
1.1.1.15 christos 1854: for (n = 0; n < npatterns; n++)
1855: free(patterns[n]);
1856: free(patterns);
1.1 christos 1857: run_err("protocol error: %s", why);
1858: exit(1);
1859: }
1860:
1.1.1.22 christos 1861: void
1862: throughlocal_sftp(struct sftp_conn *from, struct sftp_conn *to,
1863: char *src, char *targ)
1864: {
1865: char *target = NULL, *filename = NULL, *abs_dst = NULL;
1866: char *abs_src = NULL, *tmp = NULL;
1867: glob_t g;
1868: int i, r, targetisdir, err = 0;
1869:
1870: if ((filename = basename(src)) == NULL)
1871: fatal("basename %s: %s", src, strerror(errno));
1872:
1873: if ((abs_src = prepare_remote_path(from, src)) == NULL ||
1874: (target = prepare_remote_path(to, targ)) == NULL)
1875: cleanup_exit(255);
1876: memset(&g, 0, sizeof(g));
1877:
1878: targetisdir = remote_is_dir(to, target);
1879: if (!targetisdir && targetshouldbedirectory) {
1.1.1.24 christos 1880: error("%s: destination is not a directory", targ);
1.1.1.22 christos 1881: err = -1;
1882: goto out;
1883: }
1884:
1885: debug3_f("copying remote %s to remote %s", abs_src, target);
1886: if ((r = remote_glob(from, abs_src, GLOB_MARK, NULL, &g)) != 0) {
1887: if (r == GLOB_NOSPACE)
1.1.1.24 christos 1888: error("%s: too many glob matches", src);
1.1.1.22 christos 1889: else
1.1.1.24 christos 1890: error("%s: %s", src, strerror(ENOENT));
1.1.1.22 christos 1891: err = -1;
1892: goto out;
1893: }
1894:
1895: for (i = 0; g.gl_pathv[i] && !interrupted; i++) {
1896: tmp = xstrdup(g.gl_pathv[i]);
1897: if ((filename = basename(tmp)) == NULL) {
1898: error("basename %s: %s", tmp, strerror(errno));
1899: err = -1;
1900: goto out;
1901: }
1902:
1903: if (targetisdir)
1904: abs_dst = path_append(target, filename);
1905: else
1906: abs_dst = xstrdup(target);
1907:
1908: debug("Fetching %s to %s\n", g.gl_pathv[i], abs_dst);
1909: if (globpath_is_dir(g.gl_pathv[i]) && iamrecursive) {
1910: if (crossload_dir(from, to, g.gl_pathv[i], abs_dst,
1911: NULL, pflag, SFTP_PROGRESS_ONLY, 1) == -1)
1912: err = -1;
1913: } else {
1914: if (do_crossload(from, to, g.gl_pathv[i], abs_dst, NULL,
1915: pflag) == -1)
1916: err = -1;
1917: }
1918: free(abs_dst);
1919: abs_dst = NULL;
1920: free(tmp);
1921: tmp = NULL;
1922: }
1923:
1924: out:
1925: free(abs_src);
1926: free(abs_dst);
1927: free(target);
1928: free(tmp);
1929: globfree(&g);
1930: if (err == -1)
1.1.1.23 christos 1931: errs = 1;
1.1.1.22 christos 1932: }
1933:
1.1 christos 1934: int
1935: response(void)
1936: {
1.1.1.10 christos 1937: char ch, *cp, resp, rbuf[2048], visbuf[2048];
1.1 christos 1938:
1939: if (atomicio(read, remin, &resp, sizeof(resp)) != sizeof(resp))
1940: lostconn(0);
1941:
1942: cp = rbuf;
1943: switch (resp) {
1944: case 0: /* ok */
1945: return (0);
1946: default:
1947: *cp++ = resp;
1948: /* FALLTHROUGH */
1949: case 1: /* error, followed by error msg */
1950: case 2: /* fatal error, "" */
1951: do {
1952: if (atomicio(read, remin, &ch, sizeof(ch)) != sizeof(ch))
1953: lostconn(0);
1954: *cp++ = ch;
1955: } while (cp < &rbuf[sizeof(rbuf) - 1] && ch != '\n');
1956:
1.1.1.10 christos 1957: if (!iamremote) {
1958: cp[-1] = '\0';
1959: (void) snmprintf(visbuf, sizeof(visbuf),
1960: NULL, "%s\n", rbuf);
1961: (void) atomicio(vwrite, STDERR_FILENO,
1962: visbuf, strlen(visbuf));
1963: }
1.1 christos 1964: ++errs;
1965: if (resp == 1)
1966: return (-1);
1967: exit(1);
1968: }
1969: /* NOTREACHED */
1970: }
1971:
1972: void
1973: usage(void)
1974: {
1975: (void) fprintf(stderr,
1.1.1.22 christos 1976: "usage: scp [-346ABCOpqRrsTv] [-c cipher] [-D sftp_server_path] [-F ssh_config]\n"
1977: " [-i identity_file] [-J destination] [-l limit]\n"
1978: " [-o ssh_option] [-P port] [-S program] source ... target\n");
1.1 christos 1979: exit(1);
1980: }
1981:
1982: void
1983: run_err(const char *fmt,...)
1984: {
1985: static FILE *fp;
1986: va_list ap;
1987:
1988: ++errs;
1989: if (fp != NULL || (remout != -1 && (fp = fdopen(remout, "w")))) {
1990: (void) fprintf(fp, "%c", 0x01);
1991: (void) fprintf(fp, "scp: ");
1992: va_start(ap, fmt);
1993: (void) vfprintf(fp, fmt, ap);
1994: va_end(ap);
1995: (void) fprintf(fp, "\n");
1996: (void) fflush(fp);
1997: }
1998:
1999: if (!iamremote) {
2000: va_start(ap, fmt);
1.1.1.10 christos 2001: vfmprintf(stderr, fmt, ap);
1.1 christos 2002: va_end(ap);
2003: fprintf(stderr, "\n");
2004: }
2005: }
2006:
1.1.1.18 christos 2007: /*
2008: * Notes a sink error for sending at the end of a file transfer. Returns 0 if
2009: * no error has been noted or -1 otherwise. Use note_err(NULL) to flush
2010: * any active error at the end of the transfer.
2011: */
2012: int
2013: note_err(const char *fmt, ...)
2014: {
2015: static char *emsg;
2016: va_list ap;
2017:
2018: /* Replay any previously-noted error */
2019: if (fmt == NULL) {
2020: if (emsg == NULL)
2021: return 0;
2022: run_err("%s", emsg);
2023: free(emsg);
2024: emsg = NULL;
2025: return -1;
2026: }
2027:
2028: errs++;
2029: /* Prefer first-noted error */
2030: if (emsg != NULL)
2031: return -1;
2032:
2033: va_start(ap, fmt);
2034: vasnmprintf(&emsg, INT_MAX, NULL, fmt, ap);
2035: va_end(ap);
2036: return -1;
2037: }
2038:
1.1 christos 2039: void
2040: verifydir(char *cp)
2041: {
2042: struct stat stb;
2043:
2044: if (!stat(cp, &stb)) {
2045: if (S_ISDIR(stb.st_mode))
2046: return;
2047: errno = ENOTDIR;
2048: }
2049: run_err("%s: %s", cp, strerror(errno));
2050: killchild(0);
2051: }
2052:
2053: int
2054: okname(char *cp0)
2055: {
2056: int c;
2057: char *cp;
2058:
2059: cp = cp0;
2060: do {
2061: c = (int)*cp;
2062: if (c & 0200)
2063: goto bad;
1.1.1.6 christos 2064: if (!isalpha(c) && !isdigit((unsigned char)c)) {
1.1 christos 2065: switch (c) {
2066: case '\'':
2067: case '"':
2068: case '`':
2069: case ' ':
2070: case '#':
2071: goto bad;
2072: default:
2073: break;
2074: }
2075: }
2076: } while (*++cp);
2077: return (1);
2078:
1.1.1.10 christos 2079: bad: fmprintf(stderr, "%s: invalid user name\n", cp0);
1.1 christos 2080: return (0);
2081: }
2082:
2083: BUF *
2084: allocbuf(BUF *bp, int fd, int blksize)
2085: {
2086: size_t size;
2087: struct stat stb;
2088:
1.1.1.16 christos 2089: if (fstat(fd, &stb) == -1) {
1.1 christos 2090: run_err("fstat: %s", strerror(errno));
2091: return (0);
2092: }
1.1.1.11 christos 2093: size = ROUNDUP(stb.st_blksize, blksize);
1.1 christos 2094: if (size == 0)
2095: size = blksize;
2096: if (bp->cnt >= size)
2097: return (bp);
1.1.1.12 christos 2098: bp->buf = xrecallocarray(bp->buf, bp->cnt, size, 1);
1.1 christos 2099: bp->cnt = size;
2100: return (bp);
2101: }
2102:
2103: void
2104: lostconn(int signo)
2105: {
2106: if (!iamremote)
1.1.1.5 christos 2107: (void)write(STDERR_FILENO, "lost connection\n", 16);
1.1 christos 2108: if (signo)
2109: _exit(1);
2110: else
2111: exit(1);
2112: }
1.1.1.22 christos 2113:
2114: void
2115: cleanup_exit(int i)
2116: {
2117: if (remin > 0)
2118: close(remin);
2119: if (remout > 0)
2120: close(remout);
2121: if (remin2 > 0)
2122: close(remin2);
2123: if (remout2 > 0)
2124: close(remout2);
2125: if (do_cmd_pid > 0)
2126: waitpid(do_cmd_pid, NULL, 0);
2127: if (do_cmd_pid2 > 0)
2128: waitpid(do_cmd_pid2, NULL, 0);
2129: exit(i);
2130: }
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