Annotation of src/usr.bin/ssh/scp.c, Revision 1.228
1.228 ! djm 1: /* $OpenBSD: scp.c,v 1.227 2021/08/09 23:47:44 djm Exp $ */
1.1 deraadt 2: /*
1.38 deraadt 3: * scp - secure remote copy. This is basically patched BSD rcp which
4: * uses ssh to do the data transfer (instead of using rcmd).
1.27 markus 5: *
1.38 deraadt 6: * NOTE: This version should NOT be suid root. (This uses ssh to
7: * do the transfer and ssh has the necessary privileges.)
1.27 markus 8: *
1.38 deraadt 9: * 1995 Timo Rinne <tri@iki.fi>, Tatu Ylonen <ylo@cs.hut.fi>
10: *
11: * As far as I am concerned, the code I have written for this software
12: * can be used freely for any purpose. Any derived versions of this
13: * software must be clearly marked as such, and if the derived work is
14: * incompatible with the protocol description in the RFC file, it must be
15: * called by a name other than "ssh" or "Secure Shell".
1.39 markus 16: */
1.38 deraadt 17: /*
1.60 deraadt 18: * Copyright (c) 1999 Theo de Raadt. All rights reserved.
19: * Copyright (c) 1999 Aaron Campbell. All rights reserved.
1.27 markus 20: *
1.38 deraadt 21: * Redistribution and use in source and binary forms, with or without
22: * modification, are permitted provided that the following conditions
23: * are met:
24: * 1. Redistributions of source code must retain the above copyright
25: * notice, this list of conditions and the following disclaimer.
26: * 2. Redistributions in binary form must reproduce the above copyright
27: * notice, this list of conditions and the following disclaimer in the
28: * documentation and/or other materials provided with the distribution.
1.27 markus 29: *
1.38 deraadt 30: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
31: * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
32: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
33: * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
34: * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
35: * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
36: * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
37: * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
38: * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
39: * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
40: */
1.1 deraadt 41:
42: /*
1.35 deraadt 43: * Parts from:
44: *
1.1 deraadt 45: * Copyright (c) 1983, 1990, 1992, 1993, 1995
46: * The Regents of the University of California. All rights reserved.
47: *
48: * Redistribution and use in source and binary forms, with or without
49: * modification, are permitted provided that the following conditions
50: * are met:
51: * 1. Redistributions of source code must retain the above copyright
52: * notice, this list of conditions and the following disclaimer.
53: * 2. Redistributions in binary form must reproduce the above copyright
54: * notice, this list of conditions and the following disclaimer in the
55: * documentation and/or other materials provided with the distribution.
1.103 millert 56: * 3. Neither the name of the University nor the names of its contributors
1.1 deraadt 57: * may be used to endorse or promote products derived from this software
58: * without specific prior written permission.
59: *
60: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
61: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
62: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
63: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
64: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
65: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
66: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
67: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
68: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
69: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
70: * SUCH DAMAGE.
71: *
72: */
73:
1.132 stevesk 74: #include <sys/types.h>
1.161 djm 75: #include <sys/poll.h>
1.132 stevesk 76: #include <sys/wait.h>
1.134 stevesk 77: #include <sys/stat.h>
1.151 stevesk 78: #include <sys/time.h>
1.155 deraadt 79: #include <sys/uio.h>
1.131 stevesk 80:
1.135 stevesk 81: #include <ctype.h>
1.131 stevesk 82: #include <dirent.h>
1.147 stevesk 83: #include <errno.h>
1.144 stevesk 84: #include <fcntl.h>
1.202 djm 85: #include <fnmatch.h>
1.216 djm 86: #include <glob.h>
87: #include <libgen.h>
1.186 schwarze 88: #include <locale.h>
1.143 stevesk 89: #include <pwd.h>
1.133 stevesk 90: #include <signal.h>
1.146 stevesk 91: #include <stdarg.h>
1.189 millert 92: #include <stdint.h>
1.154 stevesk 93: #include <stdio.h>
1.153 stevesk 94: #include <stdlib.h>
1.150 stevesk 95: #include <string.h>
1.149 stevesk 96: #include <time.h>
1.148 stevesk 97: #include <unistd.h>
1.181 deraadt 98: #include <limits.h>
1.158 dtucker 99: #include <vis.h>
1.1 deraadt 100:
101: #include "xmalloc.h"
1.193 millert 102: #include "ssh.h"
1.51 markus 103: #include "atomicio.h"
1.50 markus 104: #include "pathnames.h"
1.51 markus 105: #include "log.h"
1.69 mouring 106: #include "misc.h"
1.97 fgsch 107: #include "progressmeter.h"
1.186 schwarze 108: #include "utf8.h"
1.1 deraadt 109:
1.216 djm 110: #include "sftp-common.h"
111: #include "sftp-client.h"
112:
1.161 djm 113: #define COPY_BUFLEN 16384
114:
1.216 djm 115: int do_cmd(char *program, char *host, char *remuser, int port, char *cmd,
1.219 djm 116: int *fdin, int *fdout, pid_t *pidp);
1.216 djm 117: int do_cmd2(char *host, char *remuser, int port, char *cmd,
118: int fdin, int fdout);
1.11 aaron 119:
1.70 mouring 120: /* Struct for addargs */
121: arglist args;
1.168 djm 122: arglist remote_remote_args;
1.41 markus 123:
1.99 markus 124: /* Bandwidth limit */
1.167 djm 125: long long limit_kbps = 0;
126: struct bwlimit bwlimit;
1.99 markus 127:
1.11 aaron 128: /* Name of current file being transferred. */
129: char *curfile;
1.4 aaron 130:
1.1 deraadt 131: /* This is set to non-zero to enable verbose mode. */
1.17 markus 132: int verbose_mode = 0;
1.216 djm 133: LogLevel log_level = SYSLOG_LEVEL_INFO;
1.1 deraadt 134:
1.6 aaron 135: /* This is set to zero if the progressmeter is not desired. */
136: int showprogress = 1;
137:
1.169 markus 138: /*
139: * This is set to non-zero if remote-remote copy should be piped
140: * through this process.
141: */
1.224 djm 142: int throughlocal = 0;
1.169 markus 143:
1.193 millert 144: /* Non-standard port to use for the ssh connection or -1. */
145: int sshport = -1;
146:
1.34 deraadt 147: /* This is the program to execute for the secured connection. ("ssh" or -S) */
1.50 markus 148: char *ssh_program = _PATH_SSH_PROGRAM;
1.34 deraadt 149:
1.92 markus 150: /* This is used to store the pid of ssh_program */
1.105 djm 151: pid_t do_cmd_pid = -1;
1.219 djm 152: pid_t do_cmd_pid2 = -1;
1.105 djm 153:
1.216 djm 154: /* Needed for sftp */
155: volatile sig_atomic_t interrupted = 0;
156:
157: int remote_glob(struct sftp_conn *, const char *, int,
158: int (*)(const char *, int), glob_t *); /* proto for sftp-glob.c */
159:
1.105 djm 160: static void
161: killchild(int signo)
162: {
1.119 dtucker 163: if (do_cmd_pid > 1) {
1.123 avsm 164: kill(do_cmd_pid, signo ? signo : SIGTERM);
1.119 dtucker 165: waitpid(do_cmd_pid, NULL, 0);
166: }
1.219 djm 167: if (do_cmd_pid2 > 1) {
168: kill(do_cmd_pid2, signo ? signo : SIGTERM);
169: waitpid(do_cmd_pid2, NULL, 0);
170: }
1.105 djm 171:
1.123 avsm 172: if (signo)
173: _exit(1);
174: exit(1);
1.105 djm 175: }
1.92 markus 176:
1.166 millert 177: static void
1.219 djm 178: suspone(int pid, int signo)
1.166 millert 179: {
180: int status;
181:
1.219 djm 182: if (pid > 1) {
183: kill(pid, signo);
184: while (waitpid(pid, &status, WUNTRACED) == -1 &&
1.166 millert 185: errno == EINTR)
186: ;
187: }
188: }
189:
1.219 djm 190: static void
191: suspchild(int signo)
192: {
193: suspone(do_cmd_pid, signo);
194: suspone(do_cmd_pid2, signo);
195: kill(getpid(), SIGSTOP);
196: }
197:
1.129 djm 198: static int
199: do_local_cmd(arglist *a)
200: {
201: u_int i;
202: int status;
203: pid_t pid;
204:
205: if (a->num == 0)
206: fatal("do_local_cmd: no arguments");
207:
208: if (verbose_mode) {
209: fprintf(stderr, "Executing:");
210: for (i = 0; i < a->num; i++)
1.186 schwarze 211: fmprintf(stderr, " %s", a->list[i]);
1.129 djm 212: fprintf(stderr, "\n");
213: }
214: if ((pid = fork()) == -1)
215: fatal("do_local_cmd: fork: %s", strerror(errno));
216:
217: if (pid == 0) {
218: execvp(a->list[0], a->list);
219: perror(a->list[0]);
220: exit(1);
221: }
222:
223: do_cmd_pid = pid;
1.207 dtucker 224: ssh_signal(SIGTERM, killchild);
225: ssh_signal(SIGINT, killchild);
226: ssh_signal(SIGHUP, killchild);
1.129 djm 227:
228: while (waitpid(pid, &status, 0) == -1)
229: if (errno != EINTR)
230: fatal("do_local_cmd: waitpid: %s", strerror(errno));
231:
232: do_cmd_pid = -1;
233:
234: if (!WIFEXITED(status) || WEXITSTATUS(status) != 0)
235: return (-1);
236:
237: return (0);
238: }
239:
1.20 markus 240: /*
241: * This function executes the given command as the specified user on the
242: * given host. This returns < 0 if execution fails, and >= 0 otherwise. This
243: * assigns the input and output file descriptors on success.
244: */
1.1 deraadt 245:
1.27 markus 246: int
1.216 djm 247: do_cmd(char *program, char *host, char *remuser, int port, char *cmd,
1.222 dtucker 248: int *fdin, int *fdout, pid_t *pid)
1.1 deraadt 249: {
1.18 markus 250: int pin[2], pout[2], reserved[2];
251:
252: if (verbose_mode)
1.186 schwarze 253: fmprintf(stderr,
1.78 deraadt 254: "Executing: program %s host %s, user %s, command %s\n",
1.216 djm 255: program, host,
1.78 deraadt 256: remuser ? remuser : "(unspecified)", cmd);
1.18 markus 257:
1.193 millert 258: if (port == -1)
259: port = sshport;
260:
1.20 markus 261: /*
262: * Reserve two descriptors so that the real pipes won't get
263: * descriptors 0 and 1 because that will screw up dup2 below.
264: */
1.205 deraadt 265: if (pipe(reserved) == -1)
1.142 markus 266: fatal("pipe: %s", strerror(errno));
1.18 markus 267:
268: /* Create a socket pair for communicating with ssh. */
1.205 deraadt 269: if (pipe(pin) == -1)
1.18 markus 270: fatal("pipe: %s", strerror(errno));
1.205 deraadt 271: if (pipe(pout) == -1)
1.18 markus 272: fatal("pipe: %s", strerror(errno));
273:
274: /* Free the reserved descriptors. */
275: close(reserved[0]);
276: close(reserved[1]);
1.166 millert 277:
1.207 dtucker 278: ssh_signal(SIGTSTP, suspchild);
279: ssh_signal(SIGTTIN, suspchild);
280: ssh_signal(SIGTTOU, suspchild);
1.18 markus 281:
1.106 nino 282: /* Fork a child to execute the command on the remote host using ssh. */
1.219 djm 283: *pid = fork();
284: if (*pid == 0) {
1.18 markus 285: /* Child. */
286: close(pin[1]);
287: close(pout[0]);
288: dup2(pin[0], 0);
289: dup2(pout[1], 1);
290: close(pin[0]);
291: close(pout[1]);
292:
1.216 djm 293: replacearg(&args, 0, "%s", program);
1.193 millert 294: if (port != -1) {
295: addargs(&args, "-p");
296: addargs(&args, "%d", port);
297: }
1.165 guenther 298: if (remuser != NULL) {
299: addargs(&args, "-l");
300: addargs(&args, "%s", remuser);
301: }
302: addargs(&args, "--");
1.70 mouring 303: addargs(&args, "%s", host);
304: addargs(&args, "%s", cmd);
1.18 markus 305:
1.216 djm 306: execvp(program, args.list);
307: perror(program);
1.18 markus 308: exit(1);
1.219 djm 309: } else if (*pid == -1) {
1.92 markus 310: fatal("fork: %s", strerror(errno));
1.18 markus 311: }
312: /* Parent. Close the other side, and return the local side. */
313: close(pin[0]);
314: *fdout = pin[1];
315: close(pout[1]);
316: *fdin = pout[0];
1.207 dtucker 317: ssh_signal(SIGTERM, killchild);
318: ssh_signal(SIGINT, killchild);
319: ssh_signal(SIGHUP, killchild);
1.18 markus 320: return 0;
1.1 deraadt 321: }
322:
1.169 markus 323: /*
1.196 djm 324: * This function executes a command similar to do_cmd(), but expects the
1.169 markus 325: * input and output descriptors to be setup by a previous call to do_cmd().
326: * This way the input and output of two commands can be connected.
327: */
328: int
1.219 djm 329: do_cmd2(char *host, char *remuser, int port, char *cmd,
330: int fdin, int fdout)
1.169 markus 331: {
1.219 djm 332: int status;
1.169 markus 333: pid_t pid;
334:
335: if (verbose_mode)
1.186 schwarze 336: fmprintf(stderr,
1.169 markus 337: "Executing: 2nd program %s host %s, user %s, command %s\n",
338: ssh_program, host,
339: remuser ? remuser : "(unspecified)", cmd);
340:
1.193 millert 341: if (port == -1)
342: port = sshport;
343:
1.169 markus 344: /* Fork a child to execute the command on the remote host using ssh. */
345: pid = fork();
346: if (pid == 0) {
347: dup2(fdin, 0);
348: dup2(fdout, 1);
349:
350: replacearg(&args, 0, "%s", ssh_program);
1.193 millert 351: if (port != -1) {
352: addargs(&args, "-p");
353: addargs(&args, "%d", port);
354: }
1.169 markus 355: if (remuser != NULL) {
356: addargs(&args, "-l");
357: addargs(&args, "%s", remuser);
358: }
1.208 markus 359: addargs(&args, "-oBatchMode=yes");
1.169 markus 360: addargs(&args, "--");
361: addargs(&args, "%s", host);
362: addargs(&args, "%s", cmd);
363:
364: execvp(ssh_program, args.list);
365: perror(ssh_program);
366: exit(1);
367: } else if (pid == -1) {
368: fatal("fork: %s", strerror(errno));
369: }
370: while (waitpid(pid, &status, 0) == -1)
371: if (errno != EINTR)
372: fatal("do_cmd2: waitpid: %s", strerror(errno));
373: return 0;
374: }
375:
1.1 deraadt 376: typedef struct {
1.124 djm 377: size_t cnt;
1.1 deraadt 378: char *buf;
379: } BUF;
380:
1.18 markus 381: BUF *allocbuf(BUF *, int, int);
382: void lostconn(int);
383: int okname(char *);
1.211 millert 384: void run_err(const char *,...)
385: __attribute__((__format__ (printf, 1, 2)))
386: __attribute__((__nonnull__ (1)));
387: int note_err(const char *,...)
388: __attribute__((__format__ (printf, 1, 2)));
1.18 markus 389: void verifydir(char *);
1.1 deraadt 390:
391: struct passwd *pwd;
1.18 markus 392: uid_t userid;
1.219 djm 393: int errs, remin, remout, remin2, remout2;
1.202 djm 394: int Tflag, pflag, iamremote, iamrecursive, targetshouldbedirectory;
1.1 deraadt 395:
396: #define CMDNEEDS 64
397: char cmd[CMDNEEDS]; /* must hold "rcp -r -p -d\0" */
398:
1.216 djm 399: enum scp_mode_e {
400: MODE_SCP,
401: MODE_SFTP
402: };
403:
1.18 markus 404: int response(void);
405: void rsource(char *, struct stat *);
1.202 djm 406: void sink(int, char *[], const char *);
1.18 markus 407: void source(int, char *[]);
1.216 djm 408: void tolocal(int, char *[], enum scp_mode_e, char *sftp_direct);
409: void toremote(int, char *[], enum scp_mode_e, char *sftp_direct);
1.18 markus 410: void usage(void);
1.1 deraadt 411:
1.228 ! djm 412: void source_sftp(int, char *, char *, struct sftp_conn *);
1.216 djm 413: void sink_sftp(int, char *, const char *, struct sftp_conn *);
1.219 djm 414: void throughlocal_sftp(struct sftp_conn *, struct sftp_conn *,
1.228 ! djm 415: char *, char *);
1.216 djm 416:
1.1 deraadt 417: int
1.104 djm 418: main(int argc, char **argv)
1.1 deraadt 419: {
1.145 djm 420: int ch, fflag, tflag, status, n;
1.216 djm 421: char **newargv, *argv0;
1.167 djm 422: const char *errstr;
1.1 deraadt 423: extern char *optarg;
424: extern int optind;
1.224 djm 425: /* For now, keep SCP as default */
426: enum scp_mode_e mode = MODE_SCP;
1.216 djm 427: char *sftp_direct = NULL;
1.126 djm 428:
429: /* Ensure that fds 0, 1 and 2 are open or directed to /dev/null */
430: sanitise_stdfd();
1.145 djm 431:
1.186 schwarze 432: setlocale(LC_CTYPE, "");
433:
1.145 djm 434: /* Copy argv, because we modify it */
1.216 djm 435: argv0 = argv[0];
1.187 deraadt 436: newargv = xcalloc(MAXIMUM(argc + 1, 1), sizeof(*newargv));
1.145 djm 437: for (n = 0; n < argc; n++)
438: newargv[n] = xstrdup(argv[n]);
439: argv = newargv;
1.1 deraadt 440:
1.218 djm 441: log_init(argv0, log_level, SYSLOG_FACILITY_USER, 1);
442:
1.129 djm 443: memset(&args, '\0', sizeof(args));
1.168 djm 444: memset(&remote_remote_args, '\0', sizeof(remote_remote_args));
445: args.list = remote_remote_args.list = NULL;
1.129 djm 446: addargs(&args, "%s", ssh_program);
1.70 mouring 447: addargs(&args, "-x");
1.168 djm 448: addargs(&args, "-oPermitLocalCommand=no");
449: addargs(&args, "-oClearAllForwardings=yes");
1.195 djm 450: addargs(&args, "-oRemoteCommand=none");
451: addargs(&args, "-oRequestTTY=no");
1.41 markus 452:
1.202 djm 453: fflag = Tflag = tflag = 0;
454: while ((ch = getopt(argc, argv,
1.224 djm 455: "12346ABCTdfpqrtvD:F:J:M:P:S:c:i:l:o:")) != -1) {
1.18 markus 456: switch (ch) {
457: /* User-visible flags. */
1.100 markus 458: case '1':
1.190 djm 459: fatal("SSH protocol v.1 is no longer supported");
460: break;
1.100 markus 461: case '2':
1.190 djm 462: /* Ignored */
463: break;
1.212 djm 464: case 'A':
1.23 markus 465: case '4':
1.41 markus 466: case '6':
467: case 'C':
1.70 mouring 468: addargs(&args, "-%c", ch);
1.168 djm 469: addargs(&remote_remote_args, "-%c", ch);
1.41 markus 470: break;
1.216 djm 471: case 'D':
472: sftp_direct = optarg;
473: break;
1.169 markus 474: case '3':
475: throughlocal = 1;
476: break;
1.41 markus 477: case 'o':
478: case 'c':
479: case 'i':
1.83 stevesk 480: case 'F':
1.199 tb 481: case 'J':
1.168 djm 482: addargs(&remote_remote_args, "-%c", ch);
483: addargs(&remote_remote_args, "%s", optarg);
1.165 guenther 484: addargs(&args, "-%c", ch);
485: addargs(&args, "%s", optarg);
1.23 markus 486: break;
1.41 markus 487: case 'P':
1.193 millert 488: sshport = a2port(optarg);
489: if (sshport <= 0)
490: fatal("bad port \"%s\"\n", optarg);
1.41 markus 491: break;
492: case 'B':
1.168 djm 493: addargs(&remote_remote_args, "-oBatchmode=yes");
494: addargs(&args, "-oBatchmode=yes");
1.23 markus 495: break;
1.224 djm 496: case 'M':
497: if (strcmp(optarg, "sftp") == 0)
498: mode = MODE_SFTP;
499: else if (strcmp(optarg, "scp") == 0)
500: mode = MODE_SCP;
501: else
502: usage();
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:
1.216 djm 558: log_init(argv0, log_level, SYSLOG_FACILITY_USER, 1);
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: */
622: if (do_cmd_pid != -1 && errs == 0) {
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) {
932: addargs(&args, "-s");
933: if (do_cmd(ssh_program, host, user, port, "sftp",
1.219 djm 934: reminp, remoutp, pidp) < 0)
1.216 djm 935: return NULL;
936:
937: } else {
938: args.list = NULL;
939: addargs(&args, "sftp-server");
940: if (do_cmd(sftp_direct, host, NULL, -1, "sftp",
1.219 djm 941: reminp, remoutp, pidp) < 0)
1.216 djm 942: return NULL;
943: }
1.219 djm 944: return do_init(*reminp, *remoutp, 32768, 64, limit_kbps);
1.216 djm 945: }
946:
1.1 deraadt 947: void
1.216 djm 948: toremote(int argc, char **argv, enum scp_mode_e mode, char *sftp_direct)
1.1 deraadt 949: {
1.193 millert 950: char *suser = NULL, *host = NULL, *src = NULL;
951: char *bp, *tuser, *thost, *targ;
952: int sport = -1, tport = -1;
1.219 djm 953: struct sftp_conn *conn = NULL, *conn2 = NULL;
1.129 djm 954: arglist alist;
1.219 djm 955: int i, r, status;
1.168 djm 956: u_int j;
1.129 djm 957:
958: memset(&alist, '\0', sizeof(alist));
959: alist.list = NULL;
1.1 deraadt 960:
1.193 millert 961: /* Parse target */
1.194 millert 962: r = parse_scp_uri(argv[argc - 1], &tuser, &thost, &tport, &targ);
963: if (r == -1) {
964: fmprintf(stderr, "%s: invalid uri\n", argv[argc - 1]);
965: ++errs;
966: goto out;
967: }
1.193 millert 968: if (r != 0) {
969: if (parse_user_host_path(argv[argc - 1], &tuser, &thost,
1.194 millert 970: &targ) == -1) {
971: fmprintf(stderr, "%s: invalid target\n", argv[argc - 1]);
972: ++errs;
1.193 millert 973: goto out;
1.194 millert 974: }
1.129 djm 975: }
976:
1.193 millert 977: /* Parse source files */
1.1 deraadt 978: for (i = 0; i < argc - 1; i++) {
1.193 millert 979: free(suser);
980: free(host);
981: free(src);
1.194 millert 982: r = parse_scp_uri(argv[i], &suser, &host, &sport, &src);
983: if (r == -1) {
984: fmprintf(stderr, "%s: invalid uri\n", argv[i]);
985: ++errs;
986: continue;
987: }
988: if (r != 0) {
1.193 millert 989: parse_user_host_path(argv[i], &suser, &host, &src);
1.194 millert 990: }
1.193 millert 991: if (suser != NULL && !okname(suser)) {
992: ++errs;
993: continue;
994: }
995: if (host && throughlocal) { /* extended remote to remote */
1.219 djm 996: if (mode == MODE_SFTP) {
997: if (remin == -1) {
998: /* Connect to dest now */
999: conn = do_sftp_connect(thost, tuser,
1000: tport, sftp_direct,
1001: &remin, &remout, &do_cmd_pid);
1002: if (conn == NULL) {
1003: fatal("Unable to open "
1004: "destination connection");
1005: }
1006: debug3_f("origin in %d out %d pid %ld",
1007: remin, remout, (long)do_cmd_pid);
1008: }
1009: /*
1010: * XXX remember suser/host/sport and only
1011: * reconnect if they change between arguments.
1012: * would save reconnections for cases like
1013: * scp -3 hosta:/foo hosta:/bar hostb:
1014: */
1015: /* Connect to origin now */
1016: conn2 = do_sftp_connect(host, suser,
1017: sport, sftp_direct,
1018: &remin2, &remout2, &do_cmd_pid2);
1019: if (conn2 == NULL) {
1020: fatal("Unable to open "
1021: "source connection");
1022: }
1023: debug3_f("destination in %d out %d pid %ld",
1024: remin2, remout2, (long)do_cmd_pid2);
1.228 ! djm 1025: throughlocal_sftp(conn2, conn, src, targ);
1.219 djm 1026: (void) close(remin2);
1027: (void) close(remout2);
1028: remin2 = remout2 = -1;
1029: if (waitpid(do_cmd_pid2, &status, 0) == -1)
1030: ++errs;
1031: else if (!WIFEXITED(status) ||
1032: WEXITSTATUS(status) != 0)
1033: ++errs;
1034: do_cmd_pid2 = -1;
1035: continue;
1036: } else {
1037: xasprintf(&bp, "%s -f %s%s", cmd,
1038: *src == '-' ? "-- " : "", src);
1039: if (do_cmd(ssh_program, host, suser, sport,
1040: bp, &remin, &remout, &do_cmd_pid) < 0)
1041: exit(1);
1042: free(bp);
1043: xasprintf(&bp, "%s -t %s%s", cmd,
1044: *targ == '-' ? "-- " : "", targ);
1045: if (do_cmd2(thost, tuser, tport, bp,
1046: remin, remout) < 0)
1047: exit(1);
1048: free(bp);
1049: (void) close(remin);
1050: (void) close(remout);
1051: remin = remout = -1;
1052: }
1.193 millert 1053: } else if (host) { /* standard remote to remote */
1.215 djm 1054: /*
1055: * Second remote user is passed to first remote side
1056: * via scp command-line. Ensure it contains no obvious
1057: * shell characters.
1058: */
1059: if (tuser != NULL && !okname(tuser)) {
1060: ++errs;
1061: continue;
1062: }
1.193 millert 1063: if (tport != -1 && tport != SSH_DEFAULT_PORT) {
1064: /* This would require the remote support URIs */
1065: fatal("target port not supported with two "
1066: "remote hosts without the -3 option");
1067: }
1068:
1.129 djm 1069: freeargs(&alist);
1070: addargs(&alist, "%s", ssh_program);
1071: addargs(&alist, "-x");
1.168 djm 1072: addargs(&alist, "-oClearAllForwardings=yes");
1.129 djm 1073: addargs(&alist, "-n");
1.168 djm 1074: for (j = 0; j < remote_remote_args.num; j++) {
1075: addargs(&alist, "%s",
1076: remote_remote_args.list[j]);
1077: }
1.193 millert 1078:
1079: if (sport != -1) {
1080: addargs(&alist, "-p");
1081: addargs(&alist, "%d", sport);
1082: }
1083: if (suser) {
1.129 djm 1084: addargs(&alist, "-l");
1085: addargs(&alist, "%s", suser);
1.23 markus 1086: }
1.165 guenther 1087: addargs(&alist, "--");
1.129 djm 1088: addargs(&alist, "%s", host);
1089: addargs(&alist, "%s", cmd);
1090: addargs(&alist, "%s", src);
1091: addargs(&alist, "%s%s%s:%s",
1092: tuser ? tuser : "", tuser ? "@" : "",
1093: thost, targ);
1094: if (do_local_cmd(&alist) != 0)
1.109 markus 1095: errs = 1;
1.18 markus 1096: } else { /* local to remote */
1.216 djm 1097: if (mode == MODE_SFTP) {
1098: if (remin == -1) {
1099: /* Connect to remote now */
1100: conn = do_sftp_connect(thost, tuser,
1.219 djm 1101: tport, sftp_direct,
1102: &remin, &remout, &do_cmd_pid);
1.216 djm 1103: if (conn == NULL) {
1104: fatal("Unable to open sftp "
1105: "connection");
1106: }
1107: }
1108:
1109: /* The protocol */
1.228 ! djm 1110: source_sftp(1, argv[i], targ, conn);
1.216 djm 1111: continue;
1112: }
1113: /* SCP */
1.1 deraadt 1114: if (remin == -1) {
1.171 djm 1115: xasprintf(&bp, "%s -t %s%s", cmd,
1116: *targ == '-' ? "-- " : "", targ);
1.216 djm 1117: if (do_cmd(ssh_program, thost, tuser, tport, bp,
1.219 djm 1118: &remin, &remout, &do_cmd_pid) < 0)
1.18 markus 1119: exit(1);
1.1 deraadt 1120: if (response() < 0)
1121: exit(1);
1.173 djm 1122: free(bp);
1.1 deraadt 1123: }
1.18 markus 1124: source(1, argv + i);
1.1 deraadt 1125: }
1126: }
1.193 millert 1127: out:
1.228 ! djm 1128: if (mode == MODE_SFTP)
1.216 djm 1129: free(conn);
1.193 millert 1130: free(tuser);
1131: free(thost);
1132: free(targ);
1133: free(suser);
1134: free(host);
1135: free(src);
1.1 deraadt 1136: }
1137:
1138: void
1.216 djm 1139: tolocal(int argc, char **argv, enum scp_mode_e mode, char *sftp_direct)
1.1 deraadt 1140: {
1.193 millert 1141: char *bp, *host = NULL, *src = NULL, *suser = NULL;
1.129 djm 1142: arglist alist;
1.216 djm 1143: struct sftp_conn *conn = NULL;
1.193 millert 1144: int i, r, sport = -1;
1.129 djm 1145:
1146: memset(&alist, '\0', sizeof(alist));
1147: alist.list = NULL;
1.1 deraadt 1148:
1149: for (i = 0; i < argc - 1; i++) {
1.193 millert 1150: free(suser);
1151: free(host);
1152: free(src);
1.194 millert 1153: r = parse_scp_uri(argv[i], &suser, &host, &sport, &src);
1.193 millert 1154: if (r == -1) {
1.194 millert 1155: fmprintf(stderr, "%s: invalid uri\n", argv[i]);
1.193 millert 1156: ++errs;
1157: continue;
1158: }
1159: if (r != 0)
1160: parse_user_host_path(argv[i], &suser, &host, &src);
1161: if (suser != NULL && !okname(suser)) {
1162: ++errs;
1163: continue;
1164: }
1165: if (!host) { /* Local to local. */
1.129 djm 1166: freeargs(&alist);
1167: addargs(&alist, "%s", _PATH_CP);
1168: if (iamrecursive)
1169: addargs(&alist, "-r");
1170: if (pflag)
1171: addargs(&alist, "-p");
1.165 guenther 1172: addargs(&alist, "--");
1.129 djm 1173: addargs(&alist, "%s", argv[i]);
1174: addargs(&alist, "%s", argv[argc-1]);
1175: if (do_local_cmd(&alist))
1.1 deraadt 1176: ++errs;
1177: continue;
1178: }
1.193 millert 1179: /* Remote to local. */
1.216 djm 1180: if (mode == MODE_SFTP) {
1.219 djm 1181: conn = do_sftp_connect(host, suser, sport,
1182: sftp_direct, &remin, &remout, &do_cmd_pid);
1.216 djm 1183: if (conn == NULL) {
1184: error("Couldn't make sftp connection "
1185: "to server");
1186: ++errs;
1187: continue;
1188: }
1189:
1190: /* The protocol */
1191: sink_sftp(1, argv[argc - 1], src, conn);
1192:
1193: free(conn);
1194: (void) close(remin);
1195: (void) close(remout);
1196: remin = remout = -1;
1197: continue;
1198: }
1199: /* SCP */
1.171 djm 1200: xasprintf(&bp, "%s -f %s%s",
1201: cmd, *src == '-' ? "-- " : "", src);
1.219 djm 1202: if (do_cmd(ssh_program, host, suser, sport, bp,
1203: &remin, &remout, &do_cmd_pid) < 0) {
1.173 djm 1204: free(bp);
1.18 markus 1205: ++errs;
1206: continue;
1.1 deraadt 1207: }
1.173 djm 1208: free(bp);
1.202 djm 1209: sink(1, argv + argc - 1, src);
1.18 markus 1210: (void) close(remin);
1.1 deraadt 1211: remin = remout = -1;
1212: }
1.193 millert 1213: free(suser);
1214: free(host);
1215: free(src);
1.1 deraadt 1216: }
1217:
1.228 ! djm 1218: /* Prepare remote path, handling ~ by assuming cwd is the homedir */
1.226 djm 1219: static char *
1.228 ! djm 1220: prepare_remote_path(struct sftp_conn *conn, const char *path)
1.226 djm 1221: {
1.228 ! djm 1222: /* Handle ~ prefixed paths */
! 1223: if (*path != '~')
! 1224: return xstrdup(path);
! 1225: if (*path == '\0' || strcmp(path, "~") == 0)
! 1226: return xstrdup(".");
! 1227: if (strncmp(path, "~/", 2) == 0)
! 1228: return xstrdup(path + 2);
1.227 djm 1229: if (can_expand_path(conn))
1230: return do_expand_path(conn, path);
1.228 ! djm 1231: /* No protocol extension */
! 1232: error("~user paths are not currently supported");
! 1233: return NULL;
1.226 djm 1234: }
1235:
1.1 deraadt 1236: void
1.228 ! djm 1237: source_sftp(int argc, char *src, char *targ, struct sftp_conn *conn)
1.216 djm 1238: {
1239: char *target = NULL, *filename = NULL, *abs_dst = NULL;
1240: int target_is_dir;
1241:
1242: if ((filename = basename(src)) == NULL)
1243: fatal("basename %s: %s", src, strerror(errno));
1244:
1245: /*
1246: * No need to glob here - the local shell already took care of
1247: * the expansions
1248: */
1.228 ! djm 1249: if ((target = prepare_remote_path(conn, targ)) == NULL)
1.226 djm 1250: cleanup_exit(255);
1.216 djm 1251: target_is_dir = remote_is_dir(conn, target);
1252: if (targetshouldbedirectory && !target_is_dir) {
1253: fatal("Target is not a directory, but more files selected "
1254: "for upload");
1255: }
1256: if (target_is_dir)
1257: abs_dst = path_append(target, filename);
1258: else {
1259: abs_dst = target;
1260: target = NULL;
1261: }
1262: debug3_f("copying local %s to remote %s", src, abs_dst);
1263:
1264: if (local_is_dir(src) && iamrecursive) {
1.220 djm 1265: if (upload_dir(conn, src, abs_dst, pflag,
1.221 djm 1266: SFTP_PROGRESS_ONLY, 0, 0, 1) != 0) {
1.216 djm 1267: fatal("failed to upload directory %s to %s",
1268: src, abs_dst);
1269: }
1270: } else if (do_upload(conn, src, abs_dst, pflag, 0, 0) != 0)
1271: fatal("failed to upload file %s to %s", src, abs_dst);
1272:
1273: free(abs_dst);
1274: free(target);
1275: }
1276:
1277: void
1.104 djm 1278: source(int argc, char **argv)
1.1 deraadt 1279: {
1280: struct stat stb;
1281: static BUF buffer;
1282: BUF *bp;
1.163 dtucker 1283: off_t i, statbytes;
1.180 djm 1284: size_t amt, nr;
1.125 dtucker 1285: int fd = -1, haderr, indx;
1.206 dtucker 1286: char *last, *name, buf[PATH_MAX + 128], encname[PATH_MAX];
1.65 deraadt 1287: int len;
1.1 deraadt 1288:
1289: for (indx = 0; indx < argc; ++indx) {
1.18 markus 1290: name = argv[indx];
1.11 aaron 1291: statbytes = 0;
1.65 deraadt 1292: len = strlen(name);
1293: while (len > 1 && name[len-1] == '/')
1294: name[--len] = '\0';
1.205 deraadt 1295: if ((fd = open(name, O_RDONLY|O_NONBLOCK, 0)) == -1)
1.158 dtucker 1296: goto syserr;
1.85 markus 1297: if (strchr(name, '\n') != NULL) {
1.158 dtucker 1298: strnvis(encname, name, sizeof(encname), VIS_NL);
1299: name = encname;
1.85 markus 1300: }
1.205 deraadt 1301: if (fstat(fd, &stb) == -1) {
1.1 deraadt 1302: syserr: run_err("%s: %s", name, strerror(errno));
1303: goto next;
1304: }
1.163 dtucker 1305: if (stb.st_size < 0) {
1306: run_err("%s: %s", name, "Negative file size");
1307: goto next;
1308: }
1.157 djm 1309: unset_nonblock(fd);
1.1 deraadt 1310: switch (stb.st_mode & S_IFMT) {
1311: case S_IFREG:
1312: break;
1313: case S_IFDIR:
1314: if (iamrecursive) {
1315: rsource(name, &stb);
1316: goto next;
1317: }
1318: /* FALLTHROUGH */
1319: default:
1320: run_err("%s: not a regular file", name);
1321: goto next;
1322: }
1323: if ((last = strrchr(name, '/')) == NULL)
1324: last = name;
1325: else
1326: ++last;
1.11 aaron 1327: curfile = last;
1.1 deraadt 1328: if (pflag) {
1.176 guenther 1329: if (do_times(remout, verbose_mode, &stb) < 0)
1.1 deraadt 1330: goto next;
1331: }
1332: #define FILEMODEMASK (S_ISUID|S_ISGID|S_IRWXU|S_IRWXG|S_IRWXO)
1.61 markus 1333: snprintf(buf, sizeof buf, "C%04o %lld %s\n",
1.47 markus 1334: (u_int) (stb.st_mode & FILEMODEMASK),
1.62 markus 1335: (long long)stb.st_size, last);
1.186 schwarze 1336: if (verbose_mode)
1337: fmprintf(stderr, "Sending file modes: %s", buf);
1.107 deraadt 1338: (void) atomicio(vwrite, remout, buf, strlen(buf));
1.1 deraadt 1339: if (response() < 0)
1340: goto next;
1.161 djm 1341: if ((bp = allocbuf(&buffer, fd, COPY_BUFLEN)) == NULL) {
1.127 deraadt 1342: next: if (fd != -1) {
1343: (void) close(fd);
1344: fd = -1;
1345: }
1.1 deraadt 1346: continue;
1347: }
1.97 fgsch 1348: if (showprogress)
1349: start_progress_meter(curfile, stb.st_size, &statbytes);
1.161 djm 1350: set_nonblock(remout);
1.1 deraadt 1351: for (haderr = i = 0; i < stb.st_size; i += bp->cnt) {
1352: amt = bp->cnt;
1.163 dtucker 1353: if (i + (off_t)amt > stb.st_size)
1.1 deraadt 1354: amt = stb.st_size - i;
1355: if (!haderr) {
1.180 djm 1356: if ((nr = atomicio(read, fd,
1357: bp->buf, amt)) != amt) {
1.122 avsm 1358: haderr = errno;
1.180 djm 1359: memset(bp->buf + nr, 0, amt - nr);
1360: }
1.1 deraadt 1361: }
1.161 djm 1362: /* Keep writing after error to retain sync */
1363: if (haderr) {
1364: (void)atomicio(vwrite, remout, bp->buf, amt);
1.180 djm 1365: memset(bp->buf, 0, amt);
1.161 djm 1366: continue;
1.1 deraadt 1367: }
1.167 djm 1368: if (atomicio6(vwrite, remout, bp->buf, amt, scpio,
1.161 djm 1369: &statbytes) != amt)
1370: haderr = errno;
1.1 deraadt 1371: }
1.161 djm 1372: unset_nonblock(remout);
1.4 aaron 1373:
1.127 deraadt 1374: if (fd != -1) {
1.205 deraadt 1375: if (close(fd) == -1 && !haderr)
1.127 deraadt 1376: haderr = errno;
1377: fd = -1;
1378: }
1.1 deraadt 1379: if (!haderr)
1.107 deraadt 1380: (void) atomicio(vwrite, remout, "", 1);
1.1 deraadt 1381: else
1382: run_err("%s: %s", name, strerror(haderr));
1.18 markus 1383: (void) response();
1.185 dtucker 1384: if (showprogress)
1385: stop_progress_meter();
1.1 deraadt 1386: }
1387: }
1388:
1389: void
1.104 djm 1390: rsource(char *name, struct stat *statp)
1.1 deraadt 1391: {
1392: DIR *dirp;
1393: struct dirent *dp;
1.181 deraadt 1394: char *last, *vect[1], path[PATH_MAX];
1.1 deraadt 1395:
1396: if (!(dirp = opendir(name))) {
1397: run_err("%s: %s", name, strerror(errno));
1398: return;
1399: }
1400: last = strrchr(name, '/');
1.183 mmcc 1401: if (last == NULL)
1.1 deraadt 1402: last = name;
1403: else
1404: last++;
1405: if (pflag) {
1.176 guenther 1406: if (do_times(remout, verbose_mode, statp) < 0) {
1.1 deraadt 1407: closedir(dirp);
1408: return;
1409: }
1410: }
1.55 deraadt 1411: (void) snprintf(path, sizeof path, "D%04o %d %.1024s\n",
1.47 markus 1412: (u_int) (statp->st_mode & FILEMODEMASK), 0, last);
1.18 markus 1413: if (verbose_mode)
1.186 schwarze 1414: fmprintf(stderr, "Entering directory: %s", path);
1.107 deraadt 1415: (void) atomicio(vwrite, remout, path, strlen(path));
1.1 deraadt 1416: if (response() < 0) {
1417: closedir(dirp);
1418: return;
1419: }
1.63 stevesk 1420: while ((dp = readdir(dirp)) != NULL) {
1.1 deraadt 1421: if (dp->d_ino == 0)
1422: continue;
1423: if (!strcmp(dp->d_name, ".") || !strcmp(dp->d_name, ".."))
1424: continue;
1425: if (strlen(name) + 1 + strlen(dp->d_name) >= sizeof(path) - 1) {
1426: run_err("%s/%s: name too long", name, dp->d_name);
1427: continue;
1428: }
1.55 deraadt 1429: (void) snprintf(path, sizeof path, "%s/%s", name, dp->d_name);
1.1 deraadt 1430: vect[0] = path;
1431: source(1, vect);
1432: }
1.18 markus 1433: (void) closedir(dirp);
1.107 deraadt 1434: (void) atomicio(vwrite, remout, "E\n", 2);
1.18 markus 1435: (void) response();
1.1 deraadt 1436: }
1437:
1.216 djm 1438: void
1439: sink_sftp(int argc, char *dst, const char *src, struct sftp_conn *conn)
1440: {
1441: char *abs_src = NULL;
1442: char *abs_dst = NULL;
1443: glob_t g;
1.228 ! djm 1444: char *filename, *tmp = NULL;
1.216 djm 1445: int i, r, err = 0;
1446:
1.226 djm 1447: memset(&g, 0, sizeof(g));
1.216 djm 1448: /*
1449: * Here, we need remote glob as SFTP can not depend on remote shell
1450: * expansions
1451: */
1452:
1.228 ! djm 1453: if ((abs_src = prepare_remote_path(conn, src)) == NULL) {
1.226 djm 1454: err = -1;
1455: goto out;
1456: }
1.216 djm 1457:
1458: debug3_f("copying remote %s to local %s", abs_src, dst);
1459: if ((r = remote_glob(conn, abs_src, GLOB_MARK, NULL, &g)) != 0) {
1460: if (r == GLOB_NOSPACE)
1461: error("Too many glob matches for \"%s\".", abs_src);
1462: else
1463: error("File \"%s\" not found.", abs_src);
1464: err = -1;
1465: goto out;
1466: }
1467:
1468: if (g.gl_matchc > 1 && !local_is_dir(dst)) {
1469: error("Multiple files match pattern, but destination "
1470: "\"%s\" is not a directory", dst);
1471: err = -1;
1472: goto out;
1473: }
1474:
1475: for (i = 0; g.gl_pathv[i] && !interrupted; i++) {
1476: tmp = xstrdup(g.gl_pathv[i]);
1477: if ((filename = basename(tmp)) == NULL) {
1478: error("basename %s: %s", tmp, strerror(errno));
1479: err = -1;
1480: goto out;
1481: }
1482:
1483: if (local_is_dir(dst))
1484: abs_dst = path_append(dst, filename);
1485: else
1486: abs_dst = xstrdup(dst);
1487:
1488: debug("Fetching %s to %s\n", g.gl_pathv[i], abs_dst);
1489: if (globpath_is_dir(g.gl_pathv[i]) && iamrecursive) {
1490: if (download_dir(conn, g.gl_pathv[i], abs_dst, NULL,
1.221 djm 1491: pflag, SFTP_PROGRESS_ONLY, 0, 0, 1) == -1)
1.216 djm 1492: err = -1;
1493: } else {
1494: if (do_download(conn, g.gl_pathv[i], abs_dst, NULL,
1495: pflag, 0, 0) == -1)
1496: err = -1;
1497: }
1498: free(abs_dst);
1499: abs_dst = NULL;
1.217 dtucker 1500: free(tmp);
1501: tmp = NULL;
1.216 djm 1502: }
1503:
1504: out:
1505: free(abs_src);
1.217 dtucker 1506: free(tmp);
1.216 djm 1507: globfree(&g);
1508: if (err == -1) {
1509: fatal("Failed to download file '%s'", src);
1510: }
1511: }
1512:
1513:
1.189 millert 1514: #define TYPE_OVERFLOW(type, val) \
1515: ((sizeof(type) == 4 && (val) > INT32_MAX) || \
1516: (sizeof(type) == 8 && (val) > INT64_MAX) || \
1517: (sizeof(type) != 4 && sizeof(type) != 8))
1518:
1.1 deraadt 1519: void
1.202 djm 1520: sink(int argc, char **argv, const char *src)
1.1 deraadt 1521: {
1522: static BUF buffer;
1523: struct stat stb;
1524: BUF *bp;
1.122 avsm 1525: off_t i;
1.124 djm 1526: size_t j, count;
1.140 deraadt 1527: int amt, exists, first, ofd;
1528: mode_t mode, omode, mask;
1.97 fgsch 1529: off_t size, statbytes;
1.176 guenther 1530: unsigned long long ull;
1.209 djm 1531: int setimes, targisdir, wrerr;
1.186 schwarze 1532: char ch, *cp, *np, *targ, *why, *vect[1], buf[2048], visbuf[2048];
1.204 djm 1533: char **patterns = NULL;
1534: size_t n, npatterns = 0;
1.40 markus 1535: struct timeval tv[2];
1.1 deraadt 1536:
1.66 stevesk 1537: #define atime tv[0]
1538: #define mtime tv[1]
1.118 deraadt 1539: #define SCREWUP(str) { why = str; goto screwup; }
1.1 deraadt 1540:
1.189 millert 1541: if (TYPE_OVERFLOW(time_t, 0) || TYPE_OVERFLOW(off_t, 0))
1542: SCREWUP("Unexpected off_t/time_t size");
1543:
1.1 deraadt 1544: setimes = targisdir = 0;
1545: mask = umask(0);
1546: if (!pflag)
1.18 markus 1547: (void) umask(mask);
1.1 deraadt 1548: if (argc != 1) {
1549: run_err("ambiguous target");
1550: exit(1);
1551: }
1552: targ = *argv;
1553: if (targetshouldbedirectory)
1554: verifydir(targ);
1.18 markus 1555:
1.107 deraadt 1556: (void) atomicio(vwrite, remout, "", 1);
1.1 deraadt 1557: if (stat(targ, &stb) == 0 && S_ISDIR(stb.st_mode))
1558: targisdir = 1;
1.202 djm 1559: if (src != NULL && !iamrecursive && !Tflag) {
1560: /*
1561: * Prepare to try to restrict incoming filenames to match
1562: * the requested destination file glob.
1563: */
1.204 djm 1564: if (brace_expand(src, &patterns, &npatterns) != 0)
1.213 djm 1565: fatal_f("could not expand pattern");
1.202 djm 1566: }
1.1 deraadt 1567: for (first = 1;; first = 0) {
1568: cp = buf;
1.122 avsm 1569: if (atomicio(read, remin, cp, 1) != 1)
1.204 djm 1570: goto done;
1.1 deraadt 1571: if (*cp++ == '\n')
1572: SCREWUP("unexpected <newline>");
1573: do {
1.30 deraadt 1574: if (atomicio(read, remin, &ch, sizeof(ch)) != sizeof(ch))
1.1 deraadt 1575: SCREWUP("lost connection");
1576: *cp++ = ch;
1577: } while (cp < &buf[sizeof(buf) - 1] && ch != '\n');
1578: *cp = 0;
1.114 markus 1579: if (verbose_mode)
1.186 schwarze 1580: fmprintf(stderr, "Sink: %s", buf);
1.1 deraadt 1581:
1582: if (buf[0] == '\01' || buf[0] == '\02') {
1.186 schwarze 1583: if (iamremote == 0) {
1584: (void) snmprintf(visbuf, sizeof(visbuf),
1585: NULL, "%s", buf + 1);
1.107 deraadt 1586: (void) atomicio(vwrite, STDERR_FILENO,
1.186 schwarze 1587: visbuf, strlen(visbuf));
1588: }
1.1 deraadt 1589: if (buf[0] == '\02')
1590: exit(1);
1591: ++errs;
1592: continue;
1593: }
1594: if (buf[0] == 'E') {
1.107 deraadt 1595: (void) atomicio(vwrite, remout, "", 1);
1.204 djm 1596: goto done;
1.1 deraadt 1597: }
1598: if (ch == '\n')
1599: *--cp = 0;
1600:
1601: cp = buf;
1602: if (*cp == 'T') {
1603: setimes++;
1604: cp++;
1.176 guenther 1605: if (!isdigit((unsigned char)*cp))
1606: SCREWUP("mtime.sec not present");
1607: ull = strtoull(cp, &cp, 10);
1.66 stevesk 1608: if (!cp || *cp++ != ' ')
1.1 deraadt 1609: SCREWUP("mtime.sec not delimited");
1.189 millert 1610: if (TYPE_OVERFLOW(time_t, ull))
1.176 guenther 1611: setimes = 0; /* out of range */
1612: mtime.tv_sec = ull;
1.66 stevesk 1613: mtime.tv_usec = strtol(cp, &cp, 10);
1.176 guenther 1614: if (!cp || *cp++ != ' ' || mtime.tv_usec < 0 ||
1615: mtime.tv_usec > 999999)
1.1 deraadt 1616: SCREWUP("mtime.usec not delimited");
1.176 guenther 1617: if (!isdigit((unsigned char)*cp))
1618: SCREWUP("atime.sec not present");
1619: ull = strtoull(cp, &cp, 10);
1.66 stevesk 1620: if (!cp || *cp++ != ' ')
1.1 deraadt 1621: SCREWUP("atime.sec not delimited");
1.189 millert 1622: if (TYPE_OVERFLOW(time_t, ull))
1.176 guenther 1623: setimes = 0; /* out of range */
1624: atime.tv_sec = ull;
1.66 stevesk 1625: atime.tv_usec = strtol(cp, &cp, 10);
1.176 guenther 1626: if (!cp || *cp++ != '\0' || atime.tv_usec < 0 ||
1627: atime.tv_usec > 999999)
1.1 deraadt 1628: SCREWUP("atime.usec not delimited");
1.107 deraadt 1629: (void) atomicio(vwrite, remout, "", 1);
1.1 deraadt 1630: continue;
1631: }
1632: if (*cp != 'C' && *cp != 'D') {
1633: /*
1634: * Check for the case "rcp remote:foo\* local:bar".
1635: * In this case, the line "No match." can be returned
1636: * by the shell before the rcp command on the remote is
1637: * executed so the ^Aerror_message convention isn't
1638: * followed.
1639: */
1640: if (first) {
1641: run_err("%s", cp);
1642: exit(1);
1643: }
1644: SCREWUP("expected control record");
1645: }
1646: mode = 0;
1647: for (++cp; cp < buf + 5; cp++) {
1648: if (*cp < '0' || *cp > '7')
1649: SCREWUP("bad mode");
1650: mode = (mode << 3) | (*cp - '0');
1651: }
1.197 dtucker 1652: if (!pflag)
1653: mode &= ~mask;
1.1 deraadt 1654: if (*cp++ != ' ')
1655: SCREWUP("mode not delimited");
1656:
1.188 millert 1657: if (!isdigit((unsigned char)*cp))
1658: SCREWUP("size not present");
1659: ull = strtoull(cp, &cp, 10);
1660: if (!cp || *cp++ != ' ')
1.1 deraadt 1661: SCREWUP("size not delimited");
1.189 millert 1662: if (TYPE_OVERFLOW(off_t, ull))
1.188 millert 1663: SCREWUP("size out of range");
1664: size = (off_t)ull;
1665:
1.198 djm 1666: if (*cp == '\0' || strchr(cp, '/') != NULL ||
1667: strcmp(cp, ".") == 0 || strcmp(cp, "..") == 0) {
1.114 markus 1668: run_err("error: unexpected filename: %s", cp);
1669: exit(1);
1670: }
1.204 djm 1671: if (npatterns > 0) {
1672: for (n = 0; n < npatterns; n++) {
1673: if (fnmatch(patterns[n], cp, 0) == 0)
1674: break;
1675: }
1676: if (n >= npatterns)
1677: SCREWUP("filename does not match request");
1678: }
1.1 deraadt 1679: if (targisdir) {
1680: static char *namebuf;
1.124 djm 1681: static size_t cursize;
1.1 deraadt 1682: size_t need;
1683:
1684: need = strlen(targ) + strlen(cp) + 250;
1.55 deraadt 1685: if (need > cursize) {
1.173 djm 1686: free(namebuf);
1.18 markus 1687: namebuf = xmalloc(need);
1.55 deraadt 1688: cursize = need;
1689: }
1690: (void) snprintf(namebuf, need, "%s%s%s", targ,
1.88 mouring 1691: strcmp(targ, "/") ? "/" : "", cp);
1.1 deraadt 1692: np = namebuf;
1693: } else
1694: np = targ;
1.12 aaron 1695: curfile = cp;
1.1 deraadt 1696: exists = stat(np, &stb) == 0;
1697: if (buf[0] == 'D') {
1698: int mod_flag = pflag;
1.114 markus 1699: if (!iamrecursive)
1700: SCREWUP("received directory without -r");
1.1 deraadt 1701: if (exists) {
1702: if (!S_ISDIR(stb.st_mode)) {
1703: errno = ENOTDIR;
1704: goto bad;
1705: }
1706: if (pflag)
1.18 markus 1707: (void) chmod(np, mode);
1.1 deraadt 1708: } else {
1.214 djm 1709: /* Handle copying from a read-only directory */
1.1 deraadt 1710: mod_flag = 1;
1.205 deraadt 1711: if (mkdir(np, mode | S_IRWXU) == -1)
1.1 deraadt 1712: goto bad;
1713: }
1.58 danh 1714: vect[0] = xstrdup(np);
1.202 djm 1715: sink(1, vect, src);
1.1 deraadt 1716: if (setimes) {
1717: setimes = 0;
1.210 djm 1718: (void) utimes(vect[0], tv);
1.1 deraadt 1719: }
1720: if (mod_flag)
1.59 deraadt 1721: (void) chmod(vect[0], mode);
1.173 djm 1722: free(vect[0]);
1.1 deraadt 1723: continue;
1724: }
1725: omode = mode;
1.174 dtucker 1726: mode |= S_IWUSR;
1.205 deraadt 1727: if ((ofd = open(np, O_WRONLY|O_CREAT, mode)) == -1) {
1.1 deraadt 1728: bad: run_err("%s: %s", np, strerror(errno));
1729: continue;
1730: }
1.107 deraadt 1731: (void) atomicio(vwrite, remout, "", 1);
1.161 djm 1732: if ((bp = allocbuf(&buffer, ofd, COPY_BUFLEN)) == NULL) {
1.18 markus 1733: (void) close(ofd);
1.1 deraadt 1734: continue;
1735: }
1736: cp = bp->buf;
1.209 djm 1737: wrerr = 0;
1.7 deraadt 1738:
1.209 djm 1739: /*
1740: * NB. do not use run_err() unless immediately followed by
1741: * exit() below as it may send a spurious reply that might
1742: * desyncronise us from the peer. Use note_err() instead.
1743: */
1.12 aaron 1744: statbytes = 0;
1.97 fgsch 1745: if (showprogress)
1746: start_progress_meter(curfile, size, &statbytes);
1.161 djm 1747: set_nonblock(remin);
1748: for (count = i = 0; i < size; i += bp->cnt) {
1749: amt = bp->cnt;
1.1 deraadt 1750: if (i + amt > size)
1751: amt = size - i;
1752: count += amt;
1753: do {
1.167 djm 1754: j = atomicio6(read, remin, cp, amt,
1755: scpio, &statbytes);
1.122 avsm 1756: if (j == 0) {
1.161 djm 1757: run_err("%s", j != EPIPE ?
1758: strerror(errno) :
1.63 stevesk 1759: "dropped connection");
1.1 deraadt 1760: exit(1);
1761: }
1762: amt -= j;
1763: cp += j;
1764: } while (amt > 0);
1.112 djm 1765:
1.1 deraadt 1766: if (count == bp->cnt) {
1767: /* Keep reading so we stay sync'd up. */
1.209 djm 1768: if (!wrerr) {
1.122 avsm 1769: if (atomicio(vwrite, ofd, bp->buf,
1770: count) != count) {
1.209 djm 1771: note_err("%s: %s", np,
1772: strerror(errno));
1773: wrerr = 1;
1.1 deraadt 1774: }
1775: }
1776: count = 0;
1777: cp = bp->buf;
1778: }
1779: }
1.161 djm 1780: unset_nonblock(remin);
1.209 djm 1781: if (count != 0 && !wrerr &&
1.122 avsm 1782: atomicio(vwrite, ofd, bp->buf, count) != count) {
1.209 djm 1783: note_err("%s: %s", np, strerror(errno));
1784: wrerr = 1;
1.1 deraadt 1785: }
1.209 djm 1786: if (!wrerr && (!exists || S_ISREG(stb.st_mode)) &&
1787: ftruncate(ofd, size) != 0)
1788: note_err("%s: truncate: %s", np, strerror(errno));
1.1 deraadt 1789: if (pflag) {
1790: if (exists || omode != mode)
1.116 dtucker 1791: if (fchmod(ofd, omode)) {
1.209 djm 1792: note_err("%s: set mode: %s",
1.63 stevesk 1793: np, strerror(errno));
1.116 dtucker 1794: }
1.1 deraadt 1795: } else {
1796: if (!exists && omode != mode)
1.116 dtucker 1797: if (fchmod(ofd, omode & ~mask)) {
1.209 djm 1798: note_err("%s: set mode: %s",
1.63 stevesk 1799: np, strerror(errno));
1.116 dtucker 1800: }
1.1 deraadt 1801: }
1.209 djm 1802: if (close(ofd) == -1)
1.211 millert 1803: note_err("%s: close: %s", np, strerror(errno));
1.18 markus 1804: (void) response();
1.185 dtucker 1805: if (showprogress)
1806: stop_progress_meter();
1.209 djm 1807: if (setimes && !wrerr) {
1.1 deraadt 1808: setimes = 0;
1.205 deraadt 1809: if (utimes(np, tv) == -1) {
1.209 djm 1810: note_err("%s: set times: %s",
1.63 stevesk 1811: np, strerror(errno));
1.1 deraadt 1812: }
1813: }
1.209 djm 1814: /* If no error was noted then signal success for this file */
1815: if (note_err(NULL) == 0)
1.107 deraadt 1816: (void) atomicio(vwrite, remout, "", 1);
1.1 deraadt 1817: }
1.204 djm 1818: done:
1819: for (n = 0; n < npatterns; n++)
1820: free(patterns[n]);
1821: free(patterns);
1822: return;
1.1 deraadt 1823: screwup:
1.204 djm 1824: for (n = 0; n < npatterns; n++)
1825: free(patterns[n]);
1826: free(patterns);
1.1 deraadt 1827: run_err("protocol error: %s", why);
1828: exit(1);
1.219 djm 1829: }
1830:
1831: void
1832: throughlocal_sftp(struct sftp_conn *from, struct sftp_conn *to,
1.228 ! djm 1833: char *src, char *targ)
1.219 djm 1834: {
1835: char *target = NULL, *filename = NULL, *abs_dst = NULL;
1.228 ! djm 1836: char *abs_src = NULL, *tmp = NULL;
1.219 djm 1837: glob_t g;
1838: int i, r, targetisdir, err = 0;
1839:
1840: if ((filename = basename(src)) == NULL)
1841: fatal("basename %s: %s", src, strerror(errno));
1842:
1.228 ! djm 1843: if ((abs_src = prepare_remote_path(from, src)) == NULL ||
! 1844: (target = prepare_remote_path(to, targ)) == NULL)
1.226 djm 1845: cleanup_exit(255);
1.219 djm 1846: memset(&g, 0, sizeof(g));
1847:
1848: targetisdir = remote_is_dir(to, target);
1849: if (!targetisdir && targetshouldbedirectory) {
1850: error("Destination path \"%s\" is not a directory", target);
1851: err = -1;
1852: goto out;
1853: }
1854:
1855: debug3_f("copying remote %s to remote %s", abs_src, target);
1856: if ((r = remote_glob(from, abs_src, GLOB_MARK, NULL, &g)) != 0) {
1857: if (r == GLOB_NOSPACE)
1858: error("Too many glob matches for \"%s\".", abs_src);
1859: else
1860: error("File \"%s\" not found.", abs_src);
1861: err = -1;
1862: goto out;
1863: }
1864:
1865: for (i = 0; g.gl_pathv[i] && !interrupted; i++) {
1866: tmp = xstrdup(g.gl_pathv[i]);
1867: if ((filename = basename(tmp)) == NULL) {
1868: error("basename %s: %s", tmp, strerror(errno));
1869: err = -1;
1870: goto out;
1871: }
1872:
1873: if (targetisdir)
1874: abs_dst = path_append(target, filename);
1875: else
1876: abs_dst = xstrdup(target);
1877:
1878: debug("Fetching %s to %s\n", g.gl_pathv[i], abs_dst);
1879: if (globpath_is_dir(g.gl_pathv[i]) && iamrecursive) {
1880: if (crossload_dir(from, to, g.gl_pathv[i], abs_dst,
1.221 djm 1881: NULL, pflag, SFTP_PROGRESS_ONLY, 1) == -1)
1.219 djm 1882: err = -1;
1883: } else {
1884: if (do_crossload(from, to, g.gl_pathv[i], abs_dst, NULL,
1885: pflag) == -1)
1886: err = -1;
1887: }
1888: free(abs_dst);
1889: abs_dst = NULL;
1890: free(tmp);
1891: tmp = NULL;
1892: }
1893:
1894: out:
1895: free(abs_src);
1896: free(abs_dst);
1897: free(target);
1898: free(tmp);
1899: globfree(&g);
1900: if (err == -1)
1901: fatal("Failed to download file '%s'", src);
1.1 deraadt 1902: }
1903:
1904: int
1.86 itojun 1905: response(void)
1.1 deraadt 1906: {
1.186 schwarze 1907: char ch, *cp, resp, rbuf[2048], visbuf[2048];
1.1 deraadt 1908:
1.30 deraadt 1909: if (atomicio(read, remin, &resp, sizeof(resp)) != sizeof(resp))
1.1 deraadt 1910: lostconn(0);
1911:
1912: cp = rbuf;
1.18 markus 1913: switch (resp) {
1914: case 0: /* ok */
1.1 deraadt 1915: return (0);
1916: default:
1917: *cp++ = resp;
1918: /* FALLTHROUGH */
1.18 markus 1919: case 1: /* error, followed by error msg */
1920: case 2: /* fatal error, "" */
1.1 deraadt 1921: do {
1.30 deraadt 1922: if (atomicio(read, remin, &ch, sizeof(ch)) != sizeof(ch))
1.1 deraadt 1923: lostconn(0);
1924: *cp++ = ch;
1925: } while (cp < &rbuf[sizeof(rbuf) - 1] && ch != '\n');
1926:
1.186 schwarze 1927: if (!iamremote) {
1928: cp[-1] = '\0';
1929: (void) snmprintf(visbuf, sizeof(visbuf),
1930: NULL, "%s\n", rbuf);
1931: (void) atomicio(vwrite, STDERR_FILENO,
1932: visbuf, strlen(visbuf));
1933: }
1.1 deraadt 1934: ++errs;
1935: if (resp == 1)
1936: return (-1);
1937: exit(1);
1938: }
1939: /* NOTREACHED */
1940: }
1941:
1942: void
1.86 itojun 1943: usage(void)
1.1 deraadt 1944: {
1.83 stevesk 1945: (void) fprintf(stderr,
1.224 djm 1946: "usage: scp [-346ABCpqrTv] [-c cipher] [-D sftp_server_path] [-F ssh_config]\n"
1947: " [-i identity_file] [-J destination] [-l limit] [-M scp|sftp]\n"
1948: " [-o ssh_option] [-P port] [-S program] source ... target\n");
1.1 deraadt 1949: exit(1);
1950: }
1951:
1952: void
1.18 markus 1953: run_err(const char *fmt,...)
1.1 deraadt 1954: {
1955: static FILE *fp;
1956: va_list ap;
1957:
1958: ++errs;
1.136 biorn 1959: if (fp != NULL || (remout != -1 && (fp = fdopen(remout, "w")))) {
1960: (void) fprintf(fp, "%c", 0x01);
1961: (void) fprintf(fp, "scp: ");
1962: va_start(ap, fmt);
1963: (void) vfprintf(fp, fmt, ap);
1964: va_end(ap);
1965: (void) fprintf(fp, "\n");
1966: (void) fflush(fp);
1967: }
1.18 markus 1968:
1969: if (!iamremote) {
1.73 markus 1970: va_start(ap, fmt);
1.186 schwarze 1971: vfmprintf(stderr, fmt, ap);
1.73 markus 1972: va_end(ap);
1.18 markus 1973: fprintf(stderr, "\n");
1974: }
1.209 djm 1975: }
1976:
1977: /*
1978: * Notes a sink error for sending at the end of a file transfer. Returns 0 if
1979: * no error has been noted or -1 otherwise. Use note_err(NULL) to flush
1980: * any active error at the end of the transfer.
1981: */
1982: int
1983: note_err(const char *fmt, ...)
1984: {
1985: static char *emsg;
1986: va_list ap;
1987:
1988: /* Replay any previously-noted error */
1989: if (fmt == NULL) {
1990: if (emsg == NULL)
1991: return 0;
1992: run_err("%s", emsg);
1993: free(emsg);
1994: emsg = NULL;
1995: return -1;
1996: }
1997:
1998: errs++;
1999: /* Prefer first-noted error */
2000: if (emsg != NULL)
2001: return -1;
2002:
2003: va_start(ap, fmt);
2004: vasnmprintf(&emsg, INT_MAX, NULL, fmt, ap);
2005: va_end(ap);
2006: return -1;
1.1 deraadt 2007: }
2008:
2009: void
1.104 djm 2010: verifydir(char *cp)
1.1 deraadt 2011: {
2012: struct stat stb;
2013:
2014: if (!stat(cp, &stb)) {
2015: if (S_ISDIR(stb.st_mode))
2016: return;
2017: errno = ENOTDIR;
2018: }
2019: run_err("%s: %s", cp, strerror(errno));
1.123 avsm 2020: killchild(0);
1.1 deraadt 2021: }
2022:
2023: int
1.104 djm 2024: okname(char *cp0)
1.1 deraadt 2025: {
2026: int c;
2027: char *cp;
2028:
2029: cp = cp0;
2030: do {
1.75 deraadt 2031: c = (int)*cp;
1.1 deraadt 2032: if (c & 0200)
2033: goto bad;
1.179 deraadt 2034: if (!isalpha(c) && !isdigit((unsigned char)c)) {
1.101 markus 2035: switch (c) {
2036: case '\'':
2037: case '"':
2038: case '`':
2039: case ' ':
2040: case '#':
2041: goto bad;
2042: default:
2043: break;
2044: }
2045: }
1.1 deraadt 2046: } while (*++cp);
2047: return (1);
2048:
1.186 schwarze 2049: bad: fmprintf(stderr, "%s: invalid user name\n", cp0);
1.1 deraadt 2050: return (0);
2051: }
2052:
2053: BUF *
1.104 djm 2054: allocbuf(BUF *bp, int fd, int blksize)
1.1 deraadt 2055: {
2056: size_t size;
2057: struct stat stb;
2058:
1.205 deraadt 2059: if (fstat(fd, &stb) == -1) {
1.1 deraadt 2060: run_err("fstat: %s", strerror(errno));
2061: return (0);
2062: }
1.187 deraadt 2063: size = ROUNDUP(stb.st_blksize, blksize);
1.95 markus 2064: if (size == 0)
1.18 markus 2065: size = blksize;
1.1 deraadt 2066: if (bp->cnt >= size)
2067: return (bp);
1.192 deraadt 2068: bp->buf = xrecallocarray(bp->buf, bp->cnt, size, 1);
1.1 deraadt 2069: bp->cnt = size;
2070: return (bp);
2071: }
2072:
2073: void
1.104 djm 2074: lostconn(int signo)
1.1 deraadt 2075: {
2076: if (!iamremote)
1.172 dtucker 2077: (void)write(STDERR_FILENO, "lost connection\n", 16);
1.74 markus 2078: if (signo)
2079: _exit(1);
2080: else
2081: exit(1);
1.225 djm 2082: }
2083:
2084: void
2085: cleanup_exit(int i)
2086: {
2087: if (remin > 0)
2088: close(remin);
2089: if (remout > 0)
2090: close(remout);
2091: if (remin2 > 0)
2092: close(remin2);
2093: if (remout2 > 0)
2094: close(remout2);
2095: if (do_cmd_pid > 0)
2096: waitpid(do_cmd_pid, NULL, 0);
2097: if (do_cmd_pid2 > 0)
2098: waitpid(do_cmd_pid2, NULL, 0);
2099: exit(i);
1.4 aaron 2100: }