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00146caa | 1 | /* $OpenBSD: scp.c,v 1.150 2006/07/22 20:48:23 stevesk Exp $ */ |
8efc0c15 | 2 | /* |
bcbf86ec | 3 | * scp - secure remote copy. This is basically patched BSD rcp which |
4 | * uses ssh to do the data transfer (instead of using rcmd). | |
6ae2364d | 5 | * |
bcbf86ec | 6 | * NOTE: This version should NOT be suid root. (This uses ssh to |
7 | * do the transfer and ssh has the necessary privileges.) | |
6ae2364d | 8 | * |
5260325f | 9 | * 1995 Timo Rinne <tri@iki.fi>, Tatu Ylonen <ylo@cs.hut.fi> |
6ae2364d | 10 | * |
bcbf86ec | 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 | /* | |
f3c7c613 | 18 | * Copyright (c) 1999 Theo de Raadt. All rights reserved. |
19 | * Copyright (c) 1999 Aaron Campbell. All rights reserved. | |
bcbf86ec | 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 | */ | |
8efc0c15 | 41 | |
42 | /* | |
2e73a022 | 43 | * Parts from: |
44 | * | |
8efc0c15 | 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. | |
d981089c | 56 | * 3. Neither the name of the University nor the names of its contributors |
8efc0c15 | 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 | * | |
8efc0c15 | 72 | */ |
73 | ||
74 | #include "includes.h" | |
aa2eae64 | 75 | |
76 | #include <sys/types.h> | |
4095f623 | 77 | #ifdef HAVE_SYS_STAT_H |
78 | # include <sys/stat.h> | |
79 | #endif | |
aa2eae64 | 80 | #include <sys/wait.h> |
68e39d38 | 81 | |
b6438382 | 82 | #include <ctype.h> |
68e39d38 | 83 | #include <dirent.h> |
028094f4 | 84 | #include <errno.h> |
d3221cca | 85 | #include <fcntl.h> |
b1842393 | 86 | #include <pwd.h> |
ada68823 | 87 | #include <signal.h> |
4c72fcfd | 88 | #include <stdarg.h> |
00146caa | 89 | #include <string.h> |
b0f6943a | 90 | #include <time.h> |
5188ba17 | 91 | #include <unistd.h> |
8efc0c15 | 92 | |
8efc0c15 | 93 | #include "xmalloc.h" |
42f11eb2 | 94 | #include "atomicio.h" |
95 | #include "pathnames.h" | |
96 | #include "log.h" | |
36a358ca | 97 | #include "misc.h" |
b65c3807 | 98 | #include "progressmeter.h" |
8efc0c15 | 99 | |
260d427b | 100 | extern char *__progname; |
260d427b | 101 | |
ac93e676 | 102 | int do_cmd(char *host, char *remuser, char *cmd, int *fdin, int *fdout); |
103 | ||
6ea3c52a | 104 | void bwlimit(int); |
105 | ||
8a624ebf | 106 | /* Struct for addargs */ |
107 | arglist args; | |
94ec8c6b | 108 | |
6ea3c52a | 109 | /* Bandwidth limit */ |
10adbb52 | 110 | off_t limit_rate = 0; |
6ea3c52a | 111 | |
8efc0c15 | 112 | /* Name of current file being transferred. */ |
113 | char *curfile; | |
114 | ||
115 | /* This is set to non-zero to enable verbose mode. */ | |
5260325f | 116 | int verbose_mode = 0; |
8efc0c15 | 117 | |
8efc0c15 | 118 | /* This is set to zero if the progressmeter is not desired. */ |
119 | int showprogress = 1; | |
120 | ||
2e73a022 | 121 | /* This is the program to execute for the secured connection. ("ssh" or -S) */ |
42f11eb2 | 122 | char *ssh_program = _PATH_SSH_PROGRAM; |
2e73a022 | 123 | |
252d1a24 | 124 | /* This is used to store the pid of ssh_program */ |
0f764b2f | 125 | pid_t do_cmd_pid = -1; |
126 | ||
127 | static void | |
128 | killchild(int signo) | |
129 | { | |
3c03ad3f | 130 | if (do_cmd_pid > 1) { |
8f4ab41b | 131 | kill(do_cmd_pid, signo ? signo : SIGTERM); |
3c03ad3f | 132 | waitpid(do_cmd_pid, NULL, 0); |
133 | } | |
0f764b2f | 134 | |
8f4ab41b | 135 | if (signo) |
136 | _exit(1); | |
137 | exit(1); | |
0f764b2f | 138 | } |
252d1a24 | 139 | |
4116f5c0 | 140 | static int |
141 | do_local_cmd(arglist *a) | |
142 | { | |
143 | u_int i; | |
144 | int status; | |
145 | pid_t pid; | |
146 | ||
147 | if (a->num == 0) | |
148 | fatal("do_local_cmd: no arguments"); | |
149 | ||
150 | if (verbose_mode) { | |
151 | fprintf(stderr, "Executing:"); | |
152 | for (i = 0; i < a->num; i++) | |
153 | fprintf(stderr, " %s", a->list[i]); | |
154 | fprintf(stderr, "\n"); | |
155 | } | |
156 | if ((pid = fork()) == -1) | |
157 | fatal("do_local_cmd: fork: %s", strerror(errno)); | |
158 | ||
159 | if (pid == 0) { | |
160 | execvp(a->list[0], a->list); | |
161 | perror(a->list[0]); | |
162 | exit(1); | |
163 | } | |
164 | ||
165 | do_cmd_pid = pid; | |
166 | signal(SIGTERM, killchild); | |
167 | signal(SIGINT, killchild); | |
168 | signal(SIGHUP, killchild); | |
169 | ||
170 | while (waitpid(pid, &status, 0) == -1) | |
171 | if (errno != EINTR) | |
172 | fatal("do_local_cmd: waitpid: %s", strerror(errno)); | |
173 | ||
174 | do_cmd_pid = -1; | |
175 | ||
176 | if (!WIFEXITED(status) || WEXITSTATUS(status) != 0) | |
177 | return (-1); | |
178 | ||
179 | return (0); | |
180 | } | |
181 | ||
aa3378df | 182 | /* |
183 | * This function executes the given command as the specified user on the | |
184 | * given host. This returns < 0 if execution fails, and >= 0 otherwise. This | |
185 | * assigns the input and output file descriptors on success. | |
186 | */ | |
8efc0c15 | 187 | |
6ae2364d | 188 | int |
ac93e676 | 189 | do_cmd(char *host, char *remuser, char *cmd, int *fdin, int *fdout) |
8efc0c15 | 190 | { |
5260325f | 191 | int pin[2], pout[2], reserved[2]; |
192 | ||
193 | if (verbose_mode) | |
0b2988ca | 194 | fprintf(stderr, |
195 | "Executing: program %s host %s, user %s, command %s\n", | |
196 | ssh_program, host, | |
197 | remuser ? remuser : "(unspecified)", cmd); | |
5260325f | 198 | |
aa3378df | 199 | /* |
200 | * Reserve two descriptors so that the real pipes won't get | |
201 | * descriptors 0 and 1 because that will screw up dup2 below. | |
202 | */ | |
2b8dc5e3 | 203 | if (pipe(reserved) < 0) |
204 | fatal("pipe: %s", strerror(errno)); | |
5260325f | 205 | |
206 | /* Create a socket pair for communicating with ssh. */ | |
207 | if (pipe(pin) < 0) | |
208 | fatal("pipe: %s", strerror(errno)); | |
209 | if (pipe(pout) < 0) | |
210 | fatal("pipe: %s", strerror(errno)); | |
211 | ||
212 | /* Free the reserved descriptors. */ | |
213 | close(reserved[0]); | |
214 | close(reserved[1]); | |
215 | ||
1fb23629 | 216 | /* Fork a child to execute the command on the remote host using ssh. */ |
252d1a24 | 217 | do_cmd_pid = fork(); |
218 | if (do_cmd_pid == 0) { | |
5260325f | 219 | /* Child. */ |
220 | close(pin[1]); | |
221 | close(pout[0]); | |
222 | dup2(pin[0], 0); | |
223 | dup2(pout[1], 1); | |
224 | close(pin[0]); | |
225 | close(pout[1]); | |
226 | ||
4116f5c0 | 227 | replacearg(&args, 0, "%s", ssh_program); |
94ec8c6b | 228 | if (remuser != NULL) |
8a624ebf | 229 | addargs(&args, "-l%s", remuser); |
230 | addargs(&args, "%s", host); | |
231 | addargs(&args, "%s", cmd); | |
5260325f | 232 | |
94ec8c6b | 233 | execvp(ssh_program, args.list); |
2e73a022 | 234 | perror(ssh_program); |
5260325f | 235 | exit(1); |
252d1a24 | 236 | } else if (do_cmd_pid == -1) { |
237 | fatal("fork: %s", strerror(errno)); | |
8efc0c15 | 238 | } |
5260325f | 239 | /* Parent. Close the other side, and return the local side. */ |
240 | close(pin[0]); | |
241 | *fdout = pin[1]; | |
242 | close(pout[1]); | |
243 | *fdin = pout[0]; | |
0f764b2f | 244 | signal(SIGTERM, killchild); |
245 | signal(SIGINT, killchild); | |
246 | signal(SIGHUP, killchild); | |
5260325f | 247 | return 0; |
8efc0c15 | 248 | } |
249 | ||
8efc0c15 | 250 | typedef struct { |
2ceb8101 | 251 | size_t cnt; |
8efc0c15 | 252 | char *buf; |
253 | } BUF; | |
254 | ||
5260325f | 255 | BUF *allocbuf(BUF *, int, int); |
5260325f | 256 | void lostconn(int); |
5260325f | 257 | int okname(char *); |
258 | void run_err(const char *,...); | |
259 | void verifydir(char *); | |
8efc0c15 | 260 | |
8efc0c15 | 261 | struct passwd *pwd; |
5260325f | 262 | uid_t userid; |
8efc0c15 | 263 | int errs, remin, remout; |
264 | int pflag, iamremote, iamrecursive, targetshouldbedirectory; | |
265 | ||
266 | #define CMDNEEDS 64 | |
267 | char cmd[CMDNEEDS]; /* must hold "rcp -r -p -d\0" */ | |
268 | ||
5260325f | 269 | int response(void); |
270 | void rsource(char *, struct stat *); | |
271 | void sink(int, char *[]); | |
272 | void source(int, char *[]); | |
273 | void tolocal(int, char *[]); | |
274 | void toremote(char *, int, char *[]); | |
275 | void usage(void); | |
8efc0c15 | 276 | |
277 | int | |
cf3248b8 | 278 | main(int argc, char **argv) |
8efc0c15 | 279 | { |
1879b184 | 280 | int ch, fflag, tflag, status, n; |
6ea3c52a | 281 | double speed; |
1879b184 | 282 | char *targ, *endp, **newargv; |
8efc0c15 | 283 | extern char *optarg; |
284 | extern int optind; | |
285 | ||
fd6168c1 | 286 | /* Ensure that fds 0, 1 and 2 are open or directed to /dev/null */ |
287 | sanitise_stdfd(); | |
288 | ||
1879b184 | 289 | /* Copy argv, because we modify it */ |
290 | newargv = xcalloc(MAX(argc + 1, 1), sizeof(*newargv)); | |
291 | for (n = 0; n < argc; n++) | |
292 | newargv[n] = xstrdup(argv[n]); | |
293 | argv = newargv; | |
294 | ||
fda04d7d | 295 | __progname = ssh_get_progname(argv[0]); |
260d427b | 296 | |
4116f5c0 | 297 | memset(&args, '\0', sizeof(args)); |
94ec8c6b | 298 | args.list = NULL; |
4116f5c0 | 299 | addargs(&args, "%s", ssh_program); |
8a624ebf | 300 | addargs(&args, "-x"); |
3a222388 | 301 | addargs(&args, "-oForwardAgent no"); |
d20f3c9e | 302 | addargs(&args, "-oPermitLocalCommand no"); |
e1c5bfaf | 303 | addargs(&args, "-oClearAllForwardings yes"); |
94ec8c6b | 304 | |
8efc0c15 | 305 | fflag = tflag = 0; |
e6b15f23 | 306 | while ((ch = getopt(argc, argv, "dfl:prtvBCc:i:P:q1246S:o:F:")) != -1) |
5260325f | 307 | switch (ch) { |
308 | /* User-visible flags. */ | |
e6b15f23 | 309 | case '1': |
310 | case '2': | |
48e671d5 | 311 | case '4': |
48e671d5 | 312 | case '6': |
94ec8c6b | 313 | case 'C': |
8a624ebf | 314 | addargs(&args, "-%c", ch); |
48e671d5 | 315 | break; |
94ec8c6b | 316 | case 'o': |
317 | case 'c': | |
318 | case 'i': | |
f1278af7 | 319 | case 'F': |
8a624ebf | 320 | addargs(&args, "-%c%s", ch, optarg); |
8efc0c15 | 321 | break; |
322 | case 'P': | |
8a624ebf | 323 | addargs(&args, "-p%s", optarg); |
94ec8c6b | 324 | break; |
325 | case 'B': | |
8a624ebf | 326 | addargs(&args, "-oBatchmode yes"); |
94ec8c6b | 327 | break; |
6ea3c52a | 328 | case 'l': |
329 | speed = strtod(optarg, &endp); | |
330 | if (speed <= 0 || *endp != '\0') | |
331 | usage(); | |
10adbb52 | 332 | limit_rate = speed * 1024; |
6ea3c52a | 333 | break; |
94ec8c6b | 334 | case 'p': |
335 | pflag = 1; | |
5260325f | 336 | break; |
8efc0c15 | 337 | case 'r': |
338 | iamrecursive = 1; | |
339 | break; | |
2e73a022 | 340 | case 'S': |
94ec8c6b | 341 | ssh_program = xstrdup(optarg); |
342 | break; | |
343 | case 'v': | |
4fc334a2 | 344 | addargs(&args, "-v"); |
94ec8c6b | 345 | verbose_mode = 1; |
346 | break; | |
347 | case 'q': | |
15c8e3fd | 348 | addargs(&args, "-q"); |
94ec8c6b | 349 | showprogress = 0; |
2e73a022 | 350 | break; |
351 | ||
5260325f | 352 | /* Server options. */ |
8efc0c15 | 353 | case 'd': |
354 | targetshouldbedirectory = 1; | |
355 | break; | |
5260325f | 356 | case 'f': /* "from" */ |
8efc0c15 | 357 | iamremote = 1; |
358 | fflag = 1; | |
359 | break; | |
5260325f | 360 | case 't': /* "to" */ |
8efc0c15 | 361 | iamremote = 1; |
362 | tflag = 1; | |
fe56c12b | 363 | #ifdef HAVE_CYGWIN |
364 | setmode(0, O_BINARY); | |
365 | #endif | |
8efc0c15 | 366 | break; |
8efc0c15 | 367 | default: |
368 | usage(); | |
369 | } | |
370 | argc -= optind; | |
371 | argv += optind; | |
372 | ||
373 | if ((pwd = getpwuid(userid = getuid())) == NULL) | |
261bd618 | 374 | fatal("unknown user %u", (u_int) userid); |
8efc0c15 | 375 | |
5260325f | 376 | if (!isatty(STDERR_FILENO)) |
8efc0c15 | 377 | showprogress = 0; |
378 | ||
379 | remin = STDIN_FILENO; | |
380 | remout = STDOUT_FILENO; | |
381 | ||
2b87da3b | 382 | if (fflag) { |
5260325f | 383 | /* Follow "protocol", send data. */ |
384 | (void) response(); | |
8efc0c15 | 385 | source(argc, argv); |
386 | exit(errs != 0); | |
387 | } | |
5260325f | 388 | if (tflag) { |
389 | /* Receive data. */ | |
8efc0c15 | 390 | sink(argc, argv); |
391 | exit(errs != 0); | |
392 | } | |
8efc0c15 | 393 | if (argc < 2) |
394 | usage(); | |
395 | if (argc > 2) | |
396 | targetshouldbedirectory = 1; | |
397 | ||
398 | remin = remout = -1; | |
252d1a24 | 399 | do_cmd_pid = -1; |
8efc0c15 | 400 | /* Command to be executed on remote system using "ssh". */ |
0ed28836 | 401 | (void) snprintf(cmd, sizeof cmd, "scp%s%s%s%s", |
402 | verbose_mode ? " -v" : "", | |
2e73a022 | 403 | iamrecursive ? " -r" : "", pflag ? " -p" : "", |
404 | targetshouldbedirectory ? " -d" : ""); | |
8efc0c15 | 405 | |
5260325f | 406 | (void) signal(SIGPIPE, lostconn); |
8efc0c15 | 407 | |
408 | if ((targ = colon(argv[argc - 1]))) /* Dest is remote host. */ | |
409 | toremote(targ, argc, argv); | |
410 | else { | |
8efc0c15 | 411 | if (targetshouldbedirectory) |
412 | verifydir(argv[argc - 1]); | |
16e8ab10 | 413 | tolocal(argc, argv); /* Dest is local host. */ |
8efc0c15 | 414 | } |
252d1a24 | 415 | /* |
416 | * Finally check the exit status of the ssh process, if one was forked | |
417 | * and no error has occured yet | |
418 | */ | |
419 | if (do_cmd_pid != -1 && errs == 0) { | |
420 | if (remin != -1) | |
421 | (void) close(remin); | |
422 | if (remout != -1) | |
423 | (void) close(remout); | |
424 | if (waitpid(do_cmd_pid, &status, 0) == -1) | |
425 | errs = 1; | |
426 | else { | |
427 | if (!WIFEXITED(status) || WEXITSTATUS(status) != 0) | |
428 | errs = 1; | |
429 | } | |
430 | } | |
8efc0c15 | 431 | exit(errs != 0); |
432 | } | |
433 | ||
434 | void | |
cf3248b8 | 435 | toremote(char *targ, int argc, char **argv) |
8efc0c15 | 436 | { |
99dfaccc | 437 | char *bp, *host, *src, *suser, *thost, *tuser, *arg; |
4116f5c0 | 438 | arglist alist; |
ac93e676 | 439 | int i; |
4116f5c0 | 440 | |
441 | memset(&alist, '\0', sizeof(alist)); | |
442 | alist.list = NULL; | |
8efc0c15 | 443 | |
444 | *targ++ = 0; | |
445 | if (*targ == 0) | |
446 | targ = "."; | |
447 | ||
ae0d2f42 | 448 | arg = xstrdup(argv[argc - 1]); |
99dfaccc | 449 | if ((thost = strrchr(arg, '@'))) { |
8efc0c15 | 450 | /* user@host */ |
451 | *thost++ = 0; | |
99dfaccc | 452 | tuser = arg; |
8efc0c15 | 453 | if (*tuser == '\0') |
454 | tuser = NULL; | |
8efc0c15 | 455 | } else { |
99dfaccc | 456 | thost = arg; |
8efc0c15 | 457 | tuser = NULL; |
458 | } | |
459 | ||
4116f5c0 | 460 | if (tuser != NULL && !okname(tuser)) { |
461 | xfree(arg); | |
462 | return; | |
463 | } | |
464 | ||
8efc0c15 | 465 | for (i = 0; i < argc - 1; i++) { |
466 | src = colon(argv[i]); | |
5260325f | 467 | if (src) { /* remote to remote */ |
4116f5c0 | 468 | freeargs(&alist); |
469 | addargs(&alist, "%s", ssh_program); | |
470 | if (verbose_mode) | |
471 | addargs(&alist, "-v"); | |
472 | addargs(&alist, "-x"); | |
473 | addargs(&alist, "-oClearAllForwardings yes"); | |
474 | addargs(&alist, "-n"); | |
475 | ||
8efc0c15 | 476 | *src++ = 0; |
477 | if (*src == 0) | |
478 | src = "."; | |
15748b4d | 479 | host = strrchr(argv[i], '@'); |
4116f5c0 | 480 | |
8efc0c15 | 481 | if (host) { |
482 | *host++ = 0; | |
48e671d5 | 483 | host = cleanhostname(host); |
8efc0c15 | 484 | suser = argv[i]; |
485 | if (*suser == '\0') | |
486 | suser = pwd->pw_name; | |
4116f5c0 | 487 | else if (!okname(suser)) |
0ec7661a | 488 | continue; |
4116f5c0 | 489 | addargs(&alist, "-l"); |
490 | addargs(&alist, "%s", suser); | |
48e671d5 | 491 | } else { |
492 | host = cleanhostname(argv[i]); | |
48e671d5 | 493 | } |
4116f5c0 | 494 | addargs(&alist, "%s", host); |
495 | addargs(&alist, "%s", cmd); | |
496 | addargs(&alist, "%s", src); | |
497 | addargs(&alist, "%s%s%s:%s", | |
498 | tuser ? tuser : "", tuser ? "@" : "", | |
499 | thost, targ); | |
500 | if (do_local_cmd(&alist) != 0) | |
815a8407 | 501 | errs = 1; |
5260325f | 502 | } else { /* local to remote */ |
8efc0c15 | 503 | if (remin == -1) { |
c0a8e7bb | 504 | xasprintf(&bp, "%s -t %s", cmd, targ); |
48e671d5 | 505 | host = cleanhostname(thost); |
2e73a022 | 506 | if (do_cmd(host, tuser, bp, &remin, |
ac93e676 | 507 | &remout) < 0) |
5260325f | 508 | exit(1); |
8efc0c15 | 509 | if (response() < 0) |
510 | exit(1); | |
5260325f | 511 | (void) xfree(bp); |
8efc0c15 | 512 | } |
5260325f | 513 | source(1, argv + i); |
8efc0c15 | 514 | } |
515 | } | |
2b8dc5e3 | 516 | xfree(arg); |
8efc0c15 | 517 | } |
518 | ||
519 | void | |
cf3248b8 | 520 | tolocal(int argc, char **argv) |
8efc0c15 | 521 | { |
8efc0c15 | 522 | char *bp, *host, *src, *suser; |
4116f5c0 | 523 | arglist alist; |
ac93e676 | 524 | int i; |
4116f5c0 | 525 | |
526 | memset(&alist, '\0', sizeof(alist)); | |
527 | alist.list = NULL; | |
8efc0c15 | 528 | |
529 | for (i = 0; i < argc - 1; i++) { | |
5260325f | 530 | if (!(src = colon(argv[i]))) { /* Local to local. */ |
4116f5c0 | 531 | freeargs(&alist); |
532 | addargs(&alist, "%s", _PATH_CP); | |
533 | if (iamrecursive) | |
534 | addargs(&alist, "-r"); | |
535 | if (pflag) | |
536 | addargs(&alist, "-p"); | |
537 | addargs(&alist, "%s", argv[i]); | |
538 | addargs(&alist, "%s", argv[argc-1]); | |
539 | if (do_local_cmd(&alist)) | |
8efc0c15 | 540 | ++errs; |
8efc0c15 | 541 | continue; |
542 | } | |
543 | *src++ = 0; | |
544 | if (*src == 0) | |
545 | src = "."; | |
15748b4d | 546 | if ((host = strrchr(argv[i], '@')) == NULL) { |
8efc0c15 | 547 | host = argv[i]; |
548 | suser = NULL; | |
549 | } else { | |
550 | *host++ = 0; | |
551 | suser = argv[i]; | |
552 | if (*suser == '\0') | |
553 | suser = pwd->pw_name; | |
8efc0c15 | 554 | } |
48e671d5 | 555 | host = cleanhostname(host); |
c0a8e7bb | 556 | xasprintf(&bp, "%s -f %s", cmd, src); |
ac93e676 | 557 | if (do_cmd(host, suser, bp, &remin, &remout) < 0) { |
5260325f | 558 | (void) xfree(bp); |
559 | ++errs; | |
560 | continue; | |
8efc0c15 | 561 | } |
5260325f | 562 | xfree(bp); |
8efc0c15 | 563 | sink(1, argv + argc - 1); |
5260325f | 564 | (void) close(remin); |
8efc0c15 | 565 | remin = remout = -1; |
566 | } | |
567 | } | |
568 | ||
569 | void | |
cf3248b8 | 570 | source(int argc, char **argv) |
8efc0c15 | 571 | { |
572 | struct stat stb; | |
573 | static BUF buffer; | |
574 | BUF *bp; | |
05624c18 | 575 | off_t i, amt, statbytes; |
576 | size_t result; | |
a056dfa2 | 577 | int fd = -1, haderr, indx; |
8efc0c15 | 578 | char *last, *name, buf[2048]; |
0fc791ba | 579 | int len; |
8efc0c15 | 580 | |
581 | for (indx = 0; indx < argc; ++indx) { | |
5260325f | 582 | name = argv[indx]; |
8efc0c15 | 583 | statbytes = 0; |
0fc791ba | 584 | len = strlen(name); |
585 | while (len > 1 && name[len-1] == '/') | |
586 | name[--len] = '\0'; | |
5720c10e | 587 | if (strchr(name, '\n') != NULL) { |
588 | run_err("%s: skipping, filename contains a newline", | |
589 | name); | |
590 | goto next; | |
591 | } | |
8efc0c15 | 592 | if ((fd = open(name, O_RDONLY, 0)) < 0) |
593 | goto syserr; | |
594 | if (fstat(fd, &stb) < 0) { | |
595 | syserr: run_err("%s: %s", name, strerror(errno)); | |
596 | goto next; | |
597 | } | |
598 | switch (stb.st_mode & S_IFMT) { | |
599 | case S_IFREG: | |
600 | break; | |
601 | case S_IFDIR: | |
602 | if (iamrecursive) { | |
603 | rsource(name, &stb); | |
604 | goto next; | |
605 | } | |
606 | /* FALLTHROUGH */ | |
607 | default: | |
608 | run_err("%s: not a regular file", name); | |
609 | goto next; | |
610 | } | |
611 | if ((last = strrchr(name, '/')) == NULL) | |
612 | last = name; | |
613 | else | |
614 | ++last; | |
615 | curfile = last; | |
616 | if (pflag) { | |
617 | /* | |
618 | * Make it compatible with possible future | |
619 | * versions expecting microseconds. | |
620 | */ | |
0ed28836 | 621 | (void) snprintf(buf, sizeof buf, "T%lu 0 %lu 0\n", |
1e3b8b07 | 622 | (u_long) stb.st_mtime, |
623 | (u_long) stb.st_atime); | |
dc54438a | 624 | (void) atomicio(vwrite, remout, buf, strlen(buf)); |
8efc0c15 | 625 | if (response() < 0) |
626 | goto next; | |
627 | } | |
628 | #define FILEMODEMASK (S_ISUID|S_ISGID|S_IRWXU|S_IRWXG|S_IRWXO) | |
bf1d27bd | 629 | snprintf(buf, sizeof buf, "C%04o %lld %s\n", |
1e3b8b07 | 630 | (u_int) (stb.st_mode & FILEMODEMASK), |
419094c6 | 631 | (long long)stb.st_size, last); |
5260325f | 632 | if (verbose_mode) { |
633 | fprintf(stderr, "Sending file modes: %s", buf); | |
5260325f | 634 | } |
dc54438a | 635 | (void) atomicio(vwrite, remout, buf, strlen(buf)); |
8efc0c15 | 636 | if (response() < 0) |
637 | goto next; | |
638 | if ((bp = allocbuf(&buffer, fd, 2048)) == NULL) { | |
29accf74 | 639 | next: if (fd != -1) { |
640 | (void) close(fd); | |
641 | fd = -1; | |
642 | } | |
8efc0c15 | 643 | continue; |
644 | } | |
b65c3807 | 645 | if (showprogress) |
646 | start_progress_meter(curfile, stb.st_size, &statbytes); | |
8efc0c15 | 647 | /* Keep writing after an error so that we stay sync'd up. */ |
648 | for (haderr = i = 0; i < stb.st_size; i += bp->cnt) { | |
649 | amt = bp->cnt; | |
650 | if (i + amt > stb.st_size) | |
651 | amt = stb.st_size - i; | |
652 | if (!haderr) { | |
1d1ffb87 | 653 | result = atomicio(read, fd, bp->buf, amt); |
8efc0c15 | 654 | if (result != amt) |
05624c18 | 655 | haderr = errno; |
8efc0c15 | 656 | } |
657 | if (haderr) | |
dc54438a | 658 | (void) atomicio(vwrite, remout, bp->buf, amt); |
8efc0c15 | 659 | else { |
dc54438a | 660 | result = atomicio(vwrite, remout, bp->buf, amt); |
8efc0c15 | 661 | if (result != amt) |
05624c18 | 662 | haderr = errno; |
8efc0c15 | 663 | statbytes += result; |
664 | } | |
10adbb52 | 665 | if (limit_rate) |
6ea3c52a | 666 | bwlimit(amt); |
8efc0c15 | 667 | } |
5260325f | 668 | if (showprogress) |
b65c3807 | 669 | stop_progress_meter(); |
8efc0c15 | 670 | |
29accf74 | 671 | if (fd != -1) { |
672 | if (close(fd) < 0 && !haderr) | |
673 | haderr = errno; | |
674 | fd = -1; | |
675 | } | |
8efc0c15 | 676 | if (!haderr) |
dc54438a | 677 | (void) atomicio(vwrite, remout, "", 1); |
8efc0c15 | 678 | else |
679 | run_err("%s: %s", name, strerror(haderr)); | |
5260325f | 680 | (void) response(); |
8efc0c15 | 681 | } |
682 | } | |
683 | ||
684 | void | |
cf3248b8 | 685 | rsource(char *name, struct stat *statp) |
8efc0c15 | 686 | { |
687 | DIR *dirp; | |
688 | struct dirent *dp; | |
689 | char *last, *vect[1], path[1100]; | |
690 | ||
691 | if (!(dirp = opendir(name))) { | |
692 | run_err("%s: %s", name, strerror(errno)); | |
693 | return; | |
694 | } | |
695 | last = strrchr(name, '/'); | |
696 | if (last == 0) | |
697 | last = name; | |
698 | else | |
699 | last++; | |
700 | if (pflag) { | |
0ed28836 | 701 | (void) snprintf(path, sizeof(path), "T%lu 0 %lu 0\n", |
1e3b8b07 | 702 | (u_long) statp->st_mtime, |
703 | (u_long) statp->st_atime); | |
dc54438a | 704 | (void) atomicio(vwrite, remout, path, strlen(path)); |
8efc0c15 | 705 | if (response() < 0) { |
706 | closedir(dirp); | |
707 | return; | |
708 | } | |
709 | } | |
0ed28836 | 710 | (void) snprintf(path, sizeof path, "D%04o %d %.1024s\n", |
1e3b8b07 | 711 | (u_int) (statp->st_mode & FILEMODEMASK), 0, last); |
5260325f | 712 | if (verbose_mode) |
713 | fprintf(stderr, "Entering directory: %s", path); | |
dc54438a | 714 | (void) atomicio(vwrite, remout, path, strlen(path)); |
8efc0c15 | 715 | if (response() < 0) { |
716 | closedir(dirp); | |
717 | return; | |
718 | } | |
e5ff6ecf | 719 | while ((dp = readdir(dirp)) != NULL) { |
8efc0c15 | 720 | if (dp->d_ino == 0) |
721 | continue; | |
722 | if (!strcmp(dp->d_name, ".") || !strcmp(dp->d_name, "..")) | |
723 | continue; | |
724 | if (strlen(name) + 1 + strlen(dp->d_name) >= sizeof(path) - 1) { | |
725 | run_err("%s/%s: name too long", name, dp->d_name); | |
726 | continue; | |
727 | } | |
0ed28836 | 728 | (void) snprintf(path, sizeof path, "%s/%s", name, dp->d_name); |
8efc0c15 | 729 | vect[0] = path; |
730 | source(1, vect); | |
731 | } | |
5260325f | 732 | (void) closedir(dirp); |
dc54438a | 733 | (void) atomicio(vwrite, remout, "E\n", 2); |
5260325f | 734 | (void) response(); |
8efc0c15 | 735 | } |
736 | ||
6ea3c52a | 737 | void |
738 | bwlimit(int amount) | |
739 | { | |
740 | static struct timeval bwstart, bwend; | |
741 | static int lamt, thresh = 16384; | |
ca75d7de | 742 | u_int64_t waitlen; |
6ea3c52a | 743 | struct timespec ts, rm; |
744 | ||
745 | if (!timerisset(&bwstart)) { | |
746 | gettimeofday(&bwstart, NULL); | |
747 | return; | |
748 | } | |
749 | ||
750 | lamt += amount; | |
751 | if (lamt < thresh) | |
752 | return; | |
753 | ||
754 | gettimeofday(&bwend, NULL); | |
755 | timersub(&bwend, &bwstart, &bwend); | |
756 | if (!timerisset(&bwend)) | |
757 | return; | |
758 | ||
759 | lamt *= 8; | |
ca75d7de | 760 | waitlen = (double)1000000L * lamt / limit_rate; |
6ea3c52a | 761 | |
ca75d7de | 762 | bwstart.tv_sec = waitlen / 1000000L; |
763 | bwstart.tv_usec = waitlen % 1000000L; | |
6ea3c52a | 764 | |
765 | if (timercmp(&bwstart, &bwend, >)) { | |
766 | timersub(&bwstart, &bwend, &bwend); | |
767 | ||
768 | /* Adjust the wait time */ | |
769 | if (bwend.tv_sec) { | |
770 | thresh /= 2; | |
771 | if (thresh < 2048) | |
772 | thresh = 2048; | |
773 | } else if (bwend.tv_usec < 100) { | |
774 | thresh *= 2; | |
775 | if (thresh > 32768) | |
776 | thresh = 32768; | |
777 | } | |
778 | ||
779 | TIMEVAL_TO_TIMESPEC(&bwend, &ts); | |
780 | while (nanosleep(&ts, &rm) == -1) { | |
781 | if (errno != EINTR) | |
782 | break; | |
783 | ts = rm; | |
784 | } | |
785 | } | |
786 | ||
787 | lamt = 0; | |
788 | gettimeofday(&bwstart, NULL); | |
789 | } | |
790 | ||
8efc0c15 | 791 | void |
cf3248b8 | 792 | sink(int argc, char **argv) |
8efc0c15 | 793 | { |
794 | static BUF buffer; | |
795 | struct stat stb; | |
5260325f | 796 | enum { |
797 | YES, NO, DISPLAYED | |
798 | } wrerr; | |
8efc0c15 | 799 | BUF *bp; |
05624c18 | 800 | off_t i; |
2ceb8101 | 801 | size_t j, count; |
ac93e676 | 802 | int amt, exists, first, ofd; |
803 | mode_t mode, omode, mask; | |
b65c3807 | 804 | off_t size, statbytes; |
14a9a859 | 805 | int setimes, targisdir, wrerrno = 0; |
8efc0c15 | 806 | char ch, *cp, *np, *targ, *why, *vect[1], buf[2048]; |
188adeb2 | 807 | struct timeval tv[2]; |
8efc0c15 | 808 | |
36967a16 | 809 | #define atime tv[0] |
810 | #define mtime tv[1] | |
007607ab | 811 | #define SCREWUP(str) { why = str; goto screwup; } |
8efc0c15 | 812 | |
813 | setimes = targisdir = 0; | |
814 | mask = umask(0); | |
815 | if (!pflag) | |
5260325f | 816 | (void) umask(mask); |
8efc0c15 | 817 | if (argc != 1) { |
818 | run_err("ambiguous target"); | |
819 | exit(1); | |
820 | } | |
821 | targ = *argv; | |
822 | if (targetshouldbedirectory) | |
823 | verifydir(targ); | |
5260325f | 824 | |
dc54438a | 825 | (void) atomicio(vwrite, remout, "", 1); |
8efc0c15 | 826 | if (stat(targ, &stb) == 0 && S_ISDIR(stb.st_mode)) |
827 | targisdir = 1; | |
828 | for (first = 1;; first = 0) { | |
829 | cp = buf; | |
05624c18 | 830 | if (atomicio(read, remin, cp, 1) != 1) |
8efc0c15 | 831 | return; |
832 | if (*cp++ == '\n') | |
833 | SCREWUP("unexpected <newline>"); | |
834 | do { | |
1d1ffb87 | 835 | if (atomicio(read, remin, &ch, sizeof(ch)) != sizeof(ch)) |
8efc0c15 | 836 | SCREWUP("lost connection"); |
837 | *cp++ = ch; | |
838 | } while (cp < &buf[sizeof(buf) - 1] && ch != '\n'); | |
839 | *cp = 0; | |
f09aa22c | 840 | if (verbose_mode) |
841 | fprintf(stderr, "Sink: %s", buf); | |
8efc0c15 | 842 | |
843 | if (buf[0] == '\01' || buf[0] == '\02') { | |
844 | if (iamremote == 0) | |
dc54438a | 845 | (void) atomicio(vwrite, STDERR_FILENO, |
71c0d06a | 846 | buf + 1, strlen(buf + 1)); |
8efc0c15 | 847 | if (buf[0] == '\02') |
848 | exit(1); | |
849 | ++errs; | |
850 | continue; | |
851 | } | |
852 | if (buf[0] == 'E') { | |
dc54438a | 853 | (void) atomicio(vwrite, remout, "", 1); |
8efc0c15 | 854 | return; |
855 | } | |
8efc0c15 | 856 | if (ch == '\n') |
857 | *--cp = 0; | |
858 | ||
8efc0c15 | 859 | cp = buf; |
860 | if (*cp == 'T') { | |
861 | setimes++; | |
862 | cp++; | |
36967a16 | 863 | mtime.tv_sec = strtol(cp, &cp, 10); |
864 | if (!cp || *cp++ != ' ') | |
8efc0c15 | 865 | SCREWUP("mtime.sec not delimited"); |
36967a16 | 866 | mtime.tv_usec = strtol(cp, &cp, 10); |
867 | if (!cp || *cp++ != ' ') | |
8efc0c15 | 868 | SCREWUP("mtime.usec not delimited"); |
36967a16 | 869 | atime.tv_sec = strtol(cp, &cp, 10); |
870 | if (!cp || *cp++ != ' ') | |
8efc0c15 | 871 | SCREWUP("atime.sec not delimited"); |
36967a16 | 872 | atime.tv_usec = strtol(cp, &cp, 10); |
873 | if (!cp || *cp++ != '\0') | |
8efc0c15 | 874 | SCREWUP("atime.usec not delimited"); |
dc54438a | 875 | (void) atomicio(vwrite, remout, "", 1); |
8efc0c15 | 876 | continue; |
877 | } | |
878 | if (*cp != 'C' && *cp != 'D') { | |
879 | /* | |
880 | * Check for the case "rcp remote:foo\* local:bar". | |
881 | * In this case, the line "No match." can be returned | |
882 | * by the shell before the rcp command on the remote is | |
883 | * executed so the ^Aerror_message convention isn't | |
884 | * followed. | |
885 | */ | |
886 | if (first) { | |
887 | run_err("%s", cp); | |
888 | exit(1); | |
889 | } | |
890 | SCREWUP("expected control record"); | |
891 | } | |
892 | mode = 0; | |
893 | for (++cp; cp < buf + 5; cp++) { | |
894 | if (*cp < '0' || *cp > '7') | |
895 | SCREWUP("bad mode"); | |
896 | mode = (mode << 3) | (*cp - '0'); | |
897 | } | |
898 | if (*cp++ != ' ') | |
899 | SCREWUP("mode not delimited"); | |
900 | ||
e5ff6ecf | 901 | for (size = 0; isdigit(*cp);) |
8efc0c15 | 902 | size = size * 10 + (*cp++ - '0'); |
903 | if (*cp++ != ' ') | |
904 | SCREWUP("size not delimited"); | |
f09aa22c | 905 | if ((strchr(cp, '/') != NULL) || (strcmp(cp, "..") == 0)) { |
906 | run_err("error: unexpected filename: %s", cp); | |
907 | exit(1); | |
908 | } | |
8efc0c15 | 909 | if (targisdir) { |
910 | static char *namebuf; | |
2ceb8101 | 911 | static size_t cursize; |
8efc0c15 | 912 | size_t need; |
913 | ||
914 | need = strlen(targ) + strlen(cp) + 250; | |
0ed28836 | 915 | if (need > cursize) { |
916 | if (namebuf) | |
917 | xfree(namebuf); | |
5260325f | 918 | namebuf = xmalloc(need); |
0ed28836 | 919 | cursize = need; |
920 | } | |
921 | (void) snprintf(namebuf, need, "%s%s%s", targ, | |
39f9599a | 922 | strcmp(targ, "/") ? "/" : "", cp); |
8efc0c15 | 923 | np = namebuf; |
924 | } else | |
925 | np = targ; | |
926 | curfile = cp; | |
927 | exists = stat(np, &stb) == 0; | |
928 | if (buf[0] == 'D') { | |
929 | int mod_flag = pflag; | |
f09aa22c | 930 | if (!iamrecursive) |
931 | SCREWUP("received directory without -r"); | |
8efc0c15 | 932 | if (exists) { |
933 | if (!S_ISDIR(stb.st_mode)) { | |
934 | errno = ENOTDIR; | |
935 | goto bad; | |
936 | } | |
937 | if (pflag) | |
5260325f | 938 | (void) chmod(np, mode); |
8efc0c15 | 939 | } else { |
5260325f | 940 | /* Handle copying from a read-only |
941 | directory */ | |
8efc0c15 | 942 | mod_flag = 1; |
943 | if (mkdir(np, mode | S_IRWXU) < 0) | |
944 | goto bad; | |
945 | } | |
5c470997 | 946 | vect[0] = xstrdup(np); |
8efc0c15 | 947 | sink(1, vect); |
948 | if (setimes) { | |
949 | setimes = 0; | |
e68225b2 | 950 | if (utimes(vect[0], tv) < 0) |
5260325f | 951 | run_err("%s: set times: %s", |
e68225b2 | 952 | vect[0], strerror(errno)); |
8efc0c15 | 953 | } |
954 | if (mod_flag) | |
e68225b2 | 955 | (void) chmod(vect[0], mode); |
956 | if (vect[0]) | |
957 | xfree(vect[0]); | |
8efc0c15 | 958 | continue; |
959 | } | |
960 | omode = mode; | |
961 | mode |= S_IWRITE; | |
3e4fc5f9 | 962 | if ((ofd = open(np, O_WRONLY|O_CREAT, mode)) < 0) { |
8efc0c15 | 963 | bad: run_err("%s: %s", np, strerror(errno)); |
964 | continue; | |
965 | } | |
dc54438a | 966 | (void) atomicio(vwrite, remout, "", 1); |
8efc0c15 | 967 | if ((bp = allocbuf(&buffer, ofd, 4096)) == NULL) { |
5260325f | 968 | (void) close(ofd); |
8efc0c15 | 969 | continue; |
970 | } | |
971 | cp = bp->buf; | |
972 | wrerr = NO; | |
973 | ||
8efc0c15 | 974 | statbytes = 0; |
b65c3807 | 975 | if (showprogress) |
976 | start_progress_meter(curfile, size, &statbytes); | |
8efc0c15 | 977 | for (count = i = 0; i < size; i += 4096) { |
978 | amt = 4096; | |
979 | if (i + amt > size) | |
980 | amt = size - i; | |
981 | count += amt; | |
982 | do { | |
f581b6e8 | 983 | j = atomicio(read, remin, cp, amt); |
05624c18 | 984 | if (j == 0) { |
8efc0c15 | 985 | run_err("%s", j ? strerror(errno) : |
e5ff6ecf | 986 | "dropped connection"); |
8efc0c15 | 987 | exit(1); |
988 | } | |
989 | amt -= j; | |
990 | cp += j; | |
5260325f | 991 | statbytes += j; |
8efc0c15 | 992 | } while (amt > 0); |
b6453d99 | 993 | |
10adbb52 | 994 | if (limit_rate) |
6ea3c52a | 995 | bwlimit(4096); |
996 | ||
8efc0c15 | 997 | if (count == bp->cnt) { |
998 | /* Keep reading so we stay sync'd up. */ | |
999 | if (wrerr == NO) { | |
05624c18 | 1000 | if (atomicio(vwrite, ofd, bp->buf, |
1001 | count) != count) { | |
8efc0c15 | 1002 | wrerr = YES; |
05624c18 | 1003 | wrerrno = errno; |
8efc0c15 | 1004 | } |
1005 | } | |
1006 | count = 0; | |
1007 | cp = bp->buf; | |
1008 | } | |
1009 | } | |
1010 | if (showprogress) | |
b65c3807 | 1011 | stop_progress_meter(); |
8efc0c15 | 1012 | if (count != 0 && wrerr == NO && |
05624c18 | 1013 | atomicio(vwrite, ofd, bp->buf, count) != count) { |
8efc0c15 | 1014 | wrerr = YES; |
05624c18 | 1015 | wrerrno = errno; |
8efc0c15 | 1016 | } |
25a6efd8 | 1017 | if (wrerr == NO && ftruncate(ofd, size) != 0) { |
8efc0c15 | 1018 | run_err("%s: truncate: %s", np, strerror(errno)); |
1019 | wrerr = DISPLAYED; | |
1020 | } | |
8efc0c15 | 1021 | if (pflag) { |
1022 | if (exists || omode != mode) | |
77bb0bca | 1023 | #ifdef HAVE_FCHMOD |
7e693c81 | 1024 | if (fchmod(ofd, omode)) { |
77bb0bca | 1025 | #else /* HAVE_FCHMOD */ |
7e693c81 | 1026 | if (chmod(np, omode)) { |
77bb0bca | 1027 | #endif /* HAVE_FCHMOD */ |
8efc0c15 | 1028 | run_err("%s: set mode: %s", |
e5ff6ecf | 1029 | np, strerror(errno)); |
7e693c81 | 1030 | wrerr = DISPLAYED; |
1031 | } | |
8efc0c15 | 1032 | } else { |
1033 | if (!exists && omode != mode) | |
77bb0bca | 1034 | #ifdef HAVE_FCHMOD |
7e693c81 | 1035 | if (fchmod(ofd, omode & ~mask)) { |
77bb0bca | 1036 | #else /* HAVE_FCHMOD */ |
7e693c81 | 1037 | if (chmod(np, omode & ~mask)) { |
77bb0bca | 1038 | #endif /* HAVE_FCHMOD */ |
8efc0c15 | 1039 | run_err("%s: set mode: %s", |
e5ff6ecf | 1040 | np, strerror(errno)); |
7e693c81 | 1041 | wrerr = DISPLAYED; |
1042 | } | |
8efc0c15 | 1043 | } |
704b1659 | 1044 | if (close(ofd) == -1) { |
1045 | wrerr = YES; | |
1046 | wrerrno = errno; | |
1047 | } | |
5260325f | 1048 | (void) response(); |
8efc0c15 | 1049 | if (setimes && wrerr == NO) { |
1050 | setimes = 0; | |
188adeb2 | 1051 | if (utimes(np, tv) < 0) { |
8efc0c15 | 1052 | run_err("%s: set times: %s", |
e5ff6ecf | 1053 | np, strerror(errno)); |
8efc0c15 | 1054 | wrerr = DISPLAYED; |
1055 | } | |
1056 | } | |
5260325f | 1057 | switch (wrerr) { |
8efc0c15 | 1058 | case YES: |
1059 | run_err("%s: %s", np, strerror(wrerrno)); | |
1060 | break; | |
1061 | case NO: | |
dc54438a | 1062 | (void) atomicio(vwrite, remout, "", 1); |
8efc0c15 | 1063 | break; |
1064 | case DISPLAYED: | |
1065 | break; | |
1066 | } | |
1067 | } | |
1068 | screwup: | |
1069 | run_err("protocol error: %s", why); | |
1070 | exit(1); | |
1071 | } | |
1072 | ||
1073 | int | |
d5bb9418 | 1074 | response(void) |
8efc0c15 | 1075 | { |
1076 | char ch, *cp, resp, rbuf[2048]; | |
1077 | ||
1d1ffb87 | 1078 | if (atomicio(read, remin, &resp, sizeof(resp)) != sizeof(resp)) |
8efc0c15 | 1079 | lostconn(0); |
1080 | ||
1081 | cp = rbuf; | |
5260325f | 1082 | switch (resp) { |
1083 | case 0: /* ok */ | |
8efc0c15 | 1084 | return (0); |
1085 | default: | |
1086 | *cp++ = resp; | |
1087 | /* FALLTHROUGH */ | |
5260325f | 1088 | case 1: /* error, followed by error msg */ |
1089 | case 2: /* fatal error, "" */ | |
8efc0c15 | 1090 | do { |
1d1ffb87 | 1091 | if (atomicio(read, remin, &ch, sizeof(ch)) != sizeof(ch)) |
8efc0c15 | 1092 | lostconn(0); |
1093 | *cp++ = ch; | |
1094 | } while (cp < &rbuf[sizeof(rbuf) - 1] && ch != '\n'); | |
1095 | ||
1096 | if (!iamremote) | |
dc54438a | 1097 | (void) atomicio(vwrite, STDERR_FILENO, rbuf, cp - rbuf); |
8efc0c15 | 1098 | ++errs; |
1099 | if (resp == 1) | |
1100 | return (-1); | |
1101 | exit(1); | |
1102 | } | |
1103 | /* NOTREACHED */ | |
1104 | } | |
1105 | ||
1106 | void | |
d5bb9418 | 1107 | usage(void) |
8efc0c15 | 1108 | { |
f1278af7 | 1109 | (void) fprintf(stderr, |
433e60ac | 1110 | "usage: scp [-1246BCpqrv] [-c cipher] [-F ssh_config] [-i identity_file]\n" |
1111 | " [-l limit] [-o ssh_option] [-P port] [-S program]\n" | |
3015d321 | 1112 | " [[user@]host1:]file1 [...] [[user@]host2:]file2\n"); |
8efc0c15 | 1113 | exit(1); |
1114 | } | |
1115 | ||
1116 | void | |
5260325f | 1117 | run_err(const char *fmt,...) |
8efc0c15 | 1118 | { |
1119 | static FILE *fp; | |
1120 | va_list ap; | |
8efc0c15 | 1121 | |
1122 | ++errs; | |
d6157b67 | 1123 | if (fp != NULL || (remout != -1 && (fp = fdopen(remout, "w")))) { |
1124 | (void) fprintf(fp, "%c", 0x01); | |
1125 | (void) fprintf(fp, "scp: "); | |
1126 | va_start(ap, fmt); | |
1127 | (void) vfprintf(fp, fmt, ap); | |
1128 | va_end(ap); | |
1129 | (void) fprintf(fp, "\n"); | |
1130 | (void) fflush(fp); | |
1131 | } | |
5260325f | 1132 | |
1133 | if (!iamremote) { | |
b92964b7 | 1134 | va_start(ap, fmt); |
5260325f | 1135 | vfprintf(stderr, fmt, ap); |
b92964b7 | 1136 | va_end(ap); |
5260325f | 1137 | fprintf(stderr, "\n"); |
1138 | } | |
8efc0c15 | 1139 | } |
1140 | ||
8efc0c15 | 1141 | void |
cf3248b8 | 1142 | verifydir(char *cp) |
8efc0c15 | 1143 | { |
1144 | struct stat stb; | |
1145 | ||
1146 | if (!stat(cp, &stb)) { | |
1147 | if (S_ISDIR(stb.st_mode)) | |
1148 | return; | |
1149 | errno = ENOTDIR; | |
1150 | } | |
1151 | run_err("%s: %s", cp, strerror(errno)); | |
8f4ab41b | 1152 | killchild(0); |
8efc0c15 | 1153 | } |
1154 | ||
1155 | int | |
cf3248b8 | 1156 | okname(char *cp0) |
8efc0c15 | 1157 | { |
1158 | int c; | |
1159 | char *cp; | |
1160 | ||
1161 | cp = cp0; | |
1162 | do { | |
cb220a93 | 1163 | c = (int)*cp; |
8efc0c15 | 1164 | if (c & 0200) |
1165 | goto bad; | |
0ec7661a | 1166 | if (!isalpha(c) && !isdigit(c)) { |
1167 | switch (c) { | |
1168 | case '\'': | |
1169 | case '"': | |
1170 | case '`': | |
1171 | case ' ': | |
1172 | case '#': | |
1173 | goto bad; | |
1174 | default: | |
1175 | break; | |
1176 | } | |
1177 | } | |
8efc0c15 | 1178 | } while (*++cp); |
1179 | return (1); | |
1180 | ||
c8d54615 | 1181 | bad: fprintf(stderr, "%s: invalid user name\n", cp0); |
8efc0c15 | 1182 | return (0); |
1183 | } | |
1184 | ||
1185 | BUF * | |
cf3248b8 | 1186 | allocbuf(BUF *bp, int fd, int blksize) |
8efc0c15 | 1187 | { |
1188 | size_t size; | |
98a7c37b | 1189 | #ifdef HAVE_STRUCT_STAT_ST_BLKSIZE |
8efc0c15 | 1190 | struct stat stb; |
1191 | ||
1192 | if (fstat(fd, &stb) < 0) { | |
1193 | run_err("fstat: %s", strerror(errno)); | |
1194 | return (0); | |
1195 | } | |
a0a14bcd | 1196 | size = roundup(stb.st_blksize, blksize); |
1197 | if (size == 0) | |
5260325f | 1198 | size = blksize; |
98a7c37b | 1199 | #else /* HAVE_STRUCT_STAT_ST_BLKSIZE */ |
2b87da3b | 1200 | size = blksize; |
98a7c37b | 1201 | #endif /* HAVE_STRUCT_STAT_ST_BLKSIZE */ |
8efc0c15 | 1202 | if (bp->cnt >= size) |
1203 | return (bp); | |
5260325f | 1204 | if (bp->buf == NULL) |
1205 | bp->buf = xmalloc(size); | |
1206 | else | |
c5d10563 | 1207 | bp->buf = xrealloc(bp->buf, 1, size); |
46660a9e | 1208 | memset(bp->buf, 0, size); |
8efc0c15 | 1209 | bp->cnt = size; |
1210 | return (bp); | |
1211 | } | |
1212 | ||
1213 | void | |
cf3248b8 | 1214 | lostconn(int signo) |
8efc0c15 | 1215 | { |
1216 | if (!iamremote) | |
08c260ea | 1217 | write(STDERR_FILENO, "lost connection\n", 16); |
1218 | if (signo) | |
1219 | _exit(1); | |
1220 | else | |
1221 | exit(1); | |
8efc0c15 | 1222 | } |