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1879b184 | 1 | /* $OpenBSD: scp.c,v 1.145 2006/07/10 12:03:20 djm 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> |
d3221cca | 84 | #include <fcntl.h> |
b1842393 | 85 | #include <pwd.h> |
ada68823 | 86 | #include <signal.h> |
8efc0c15 | 87 | |
8efc0c15 | 88 | #include "xmalloc.h" |
42f11eb2 | 89 | #include "atomicio.h" |
90 | #include "pathnames.h" | |
91 | #include "log.h" | |
36a358ca | 92 | #include "misc.h" |
b65c3807 | 93 | #include "progressmeter.h" |
8efc0c15 | 94 | |
260d427b | 95 | extern char *__progname; |
260d427b | 96 | |
ac93e676 | 97 | int do_cmd(char *host, char *remuser, char *cmd, int *fdin, int *fdout); |
98 | ||
6ea3c52a | 99 | void bwlimit(int); |
100 | ||
8a624ebf | 101 | /* Struct for addargs */ |
102 | arglist args; | |
94ec8c6b | 103 | |
6ea3c52a | 104 | /* Bandwidth limit */ |
10adbb52 | 105 | off_t limit_rate = 0; |
6ea3c52a | 106 | |
8efc0c15 | 107 | /* Name of current file being transferred. */ |
108 | char *curfile; | |
109 | ||
110 | /* This is set to non-zero to enable verbose mode. */ | |
5260325f | 111 | int verbose_mode = 0; |
8efc0c15 | 112 | |
8efc0c15 | 113 | /* This is set to zero if the progressmeter is not desired. */ |
114 | int showprogress = 1; | |
115 | ||
2e73a022 | 116 | /* This is the program to execute for the secured connection. ("ssh" or -S) */ |
42f11eb2 | 117 | char *ssh_program = _PATH_SSH_PROGRAM; |
2e73a022 | 118 | |
252d1a24 | 119 | /* This is used to store the pid of ssh_program */ |
0f764b2f | 120 | pid_t do_cmd_pid = -1; |
121 | ||
122 | static void | |
123 | killchild(int signo) | |
124 | { | |
3c03ad3f | 125 | if (do_cmd_pid > 1) { |
8f4ab41b | 126 | kill(do_cmd_pid, signo ? signo : SIGTERM); |
3c03ad3f | 127 | waitpid(do_cmd_pid, NULL, 0); |
128 | } | |
0f764b2f | 129 | |
8f4ab41b | 130 | if (signo) |
131 | _exit(1); | |
132 | exit(1); | |
0f764b2f | 133 | } |
252d1a24 | 134 | |
4116f5c0 | 135 | static int |
136 | do_local_cmd(arglist *a) | |
137 | { | |
138 | u_int i; | |
139 | int status; | |
140 | pid_t pid; | |
141 | ||
142 | if (a->num == 0) | |
143 | fatal("do_local_cmd: no arguments"); | |
144 | ||
145 | if (verbose_mode) { | |
146 | fprintf(stderr, "Executing:"); | |
147 | for (i = 0; i < a->num; i++) | |
148 | fprintf(stderr, " %s", a->list[i]); | |
149 | fprintf(stderr, "\n"); | |
150 | } | |
151 | if ((pid = fork()) == -1) | |
152 | fatal("do_local_cmd: fork: %s", strerror(errno)); | |
153 | ||
154 | if (pid == 0) { | |
155 | execvp(a->list[0], a->list); | |
156 | perror(a->list[0]); | |
157 | exit(1); | |
158 | } | |
159 | ||
160 | do_cmd_pid = pid; | |
161 | signal(SIGTERM, killchild); | |
162 | signal(SIGINT, killchild); | |
163 | signal(SIGHUP, killchild); | |
164 | ||
165 | while (waitpid(pid, &status, 0) == -1) | |
166 | if (errno != EINTR) | |
167 | fatal("do_local_cmd: waitpid: %s", strerror(errno)); | |
168 | ||
169 | do_cmd_pid = -1; | |
170 | ||
171 | if (!WIFEXITED(status) || WEXITSTATUS(status) != 0) | |
172 | return (-1); | |
173 | ||
174 | return (0); | |
175 | } | |
176 | ||
aa3378df | 177 | /* |
178 | * This function executes the given command as the specified user on the | |
179 | * given host. This returns < 0 if execution fails, and >= 0 otherwise. This | |
180 | * assigns the input and output file descriptors on success. | |
181 | */ | |
8efc0c15 | 182 | |
6ae2364d | 183 | int |
ac93e676 | 184 | do_cmd(char *host, char *remuser, char *cmd, int *fdin, int *fdout) |
8efc0c15 | 185 | { |
5260325f | 186 | int pin[2], pout[2], reserved[2]; |
187 | ||
188 | if (verbose_mode) | |
0b2988ca | 189 | fprintf(stderr, |
190 | "Executing: program %s host %s, user %s, command %s\n", | |
191 | ssh_program, host, | |
192 | remuser ? remuser : "(unspecified)", cmd); | |
5260325f | 193 | |
aa3378df | 194 | /* |
195 | * Reserve two descriptors so that the real pipes won't get | |
196 | * descriptors 0 and 1 because that will screw up dup2 below. | |
197 | */ | |
2b8dc5e3 | 198 | if (pipe(reserved) < 0) |
199 | fatal("pipe: %s", strerror(errno)); | |
5260325f | 200 | |
201 | /* Create a socket pair for communicating with ssh. */ | |
202 | if (pipe(pin) < 0) | |
203 | fatal("pipe: %s", strerror(errno)); | |
204 | if (pipe(pout) < 0) | |
205 | fatal("pipe: %s", strerror(errno)); | |
206 | ||
207 | /* Free the reserved descriptors. */ | |
208 | close(reserved[0]); | |
209 | close(reserved[1]); | |
210 | ||
1fb23629 | 211 | /* Fork a child to execute the command on the remote host using ssh. */ |
252d1a24 | 212 | do_cmd_pid = fork(); |
213 | if (do_cmd_pid == 0) { | |
5260325f | 214 | /* Child. */ |
215 | close(pin[1]); | |
216 | close(pout[0]); | |
217 | dup2(pin[0], 0); | |
218 | dup2(pout[1], 1); | |
219 | close(pin[0]); | |
220 | close(pout[1]); | |
221 | ||
4116f5c0 | 222 | replacearg(&args, 0, "%s", ssh_program); |
94ec8c6b | 223 | if (remuser != NULL) |
8a624ebf | 224 | addargs(&args, "-l%s", remuser); |
225 | addargs(&args, "%s", host); | |
226 | addargs(&args, "%s", cmd); | |
5260325f | 227 | |
94ec8c6b | 228 | execvp(ssh_program, args.list); |
2e73a022 | 229 | perror(ssh_program); |
5260325f | 230 | exit(1); |
252d1a24 | 231 | } else if (do_cmd_pid == -1) { |
232 | fatal("fork: %s", strerror(errno)); | |
8efc0c15 | 233 | } |
5260325f | 234 | /* Parent. Close the other side, and return the local side. */ |
235 | close(pin[0]); | |
236 | *fdout = pin[1]; | |
237 | close(pout[1]); | |
238 | *fdin = pout[0]; | |
0f764b2f | 239 | signal(SIGTERM, killchild); |
240 | signal(SIGINT, killchild); | |
241 | signal(SIGHUP, killchild); | |
5260325f | 242 | return 0; |
8efc0c15 | 243 | } |
244 | ||
8efc0c15 | 245 | typedef struct { |
2ceb8101 | 246 | size_t cnt; |
8efc0c15 | 247 | char *buf; |
248 | } BUF; | |
249 | ||
5260325f | 250 | BUF *allocbuf(BUF *, int, int); |
5260325f | 251 | void lostconn(int); |
5260325f | 252 | int okname(char *); |
253 | void run_err(const char *,...); | |
254 | void verifydir(char *); | |
8efc0c15 | 255 | |
8efc0c15 | 256 | struct passwd *pwd; |
5260325f | 257 | uid_t userid; |
8efc0c15 | 258 | int errs, remin, remout; |
259 | int pflag, iamremote, iamrecursive, targetshouldbedirectory; | |
260 | ||
261 | #define CMDNEEDS 64 | |
262 | char cmd[CMDNEEDS]; /* must hold "rcp -r -p -d\0" */ | |
263 | ||
5260325f | 264 | int response(void); |
265 | void rsource(char *, struct stat *); | |
266 | void sink(int, char *[]); | |
267 | void source(int, char *[]); | |
268 | void tolocal(int, char *[]); | |
269 | void toremote(char *, int, char *[]); | |
270 | void usage(void); | |
8efc0c15 | 271 | |
272 | int | |
cf3248b8 | 273 | main(int argc, char **argv) |
8efc0c15 | 274 | { |
1879b184 | 275 | int ch, fflag, tflag, status, n; |
6ea3c52a | 276 | double speed; |
1879b184 | 277 | char *targ, *endp, **newargv; |
8efc0c15 | 278 | extern char *optarg; |
279 | extern int optind; | |
280 | ||
fd6168c1 | 281 | /* Ensure that fds 0, 1 and 2 are open or directed to /dev/null */ |
282 | sanitise_stdfd(); | |
283 | ||
1879b184 | 284 | /* Copy argv, because we modify it */ |
285 | newargv = xcalloc(MAX(argc + 1, 1), sizeof(*newargv)); | |
286 | for (n = 0; n < argc; n++) | |
287 | newargv[n] = xstrdup(argv[n]); | |
288 | argv = newargv; | |
289 | ||
fda04d7d | 290 | __progname = ssh_get_progname(argv[0]); |
260d427b | 291 | |
4116f5c0 | 292 | memset(&args, '\0', sizeof(args)); |
94ec8c6b | 293 | args.list = NULL; |
4116f5c0 | 294 | addargs(&args, "%s", ssh_program); |
8a624ebf | 295 | addargs(&args, "-x"); |
3a222388 | 296 | addargs(&args, "-oForwardAgent no"); |
d20f3c9e | 297 | addargs(&args, "-oPermitLocalCommand no"); |
e1c5bfaf | 298 | addargs(&args, "-oClearAllForwardings yes"); |
94ec8c6b | 299 | |
8efc0c15 | 300 | fflag = tflag = 0; |
e6b15f23 | 301 | while ((ch = getopt(argc, argv, "dfl:prtvBCc:i:P:q1246S:o:F:")) != -1) |
5260325f | 302 | switch (ch) { |
303 | /* User-visible flags. */ | |
e6b15f23 | 304 | case '1': |
305 | case '2': | |
48e671d5 | 306 | case '4': |
48e671d5 | 307 | case '6': |
94ec8c6b | 308 | case 'C': |
8a624ebf | 309 | addargs(&args, "-%c", ch); |
48e671d5 | 310 | break; |
94ec8c6b | 311 | case 'o': |
312 | case 'c': | |
313 | case 'i': | |
f1278af7 | 314 | case 'F': |
8a624ebf | 315 | addargs(&args, "-%c%s", ch, optarg); |
8efc0c15 | 316 | break; |
317 | case 'P': | |
8a624ebf | 318 | addargs(&args, "-p%s", optarg); |
94ec8c6b | 319 | break; |
320 | case 'B': | |
8a624ebf | 321 | addargs(&args, "-oBatchmode yes"); |
94ec8c6b | 322 | break; |
6ea3c52a | 323 | case 'l': |
324 | speed = strtod(optarg, &endp); | |
325 | if (speed <= 0 || *endp != '\0') | |
326 | usage(); | |
10adbb52 | 327 | limit_rate = speed * 1024; |
6ea3c52a | 328 | break; |
94ec8c6b | 329 | case 'p': |
330 | pflag = 1; | |
5260325f | 331 | break; |
8efc0c15 | 332 | case 'r': |
333 | iamrecursive = 1; | |
334 | break; | |
2e73a022 | 335 | case 'S': |
94ec8c6b | 336 | ssh_program = xstrdup(optarg); |
337 | break; | |
338 | case 'v': | |
4fc334a2 | 339 | addargs(&args, "-v"); |
94ec8c6b | 340 | verbose_mode = 1; |
341 | break; | |
342 | case 'q': | |
15c8e3fd | 343 | addargs(&args, "-q"); |
94ec8c6b | 344 | showprogress = 0; |
2e73a022 | 345 | break; |
346 | ||
5260325f | 347 | /* Server options. */ |
8efc0c15 | 348 | case 'd': |
349 | targetshouldbedirectory = 1; | |
350 | break; | |
5260325f | 351 | case 'f': /* "from" */ |
8efc0c15 | 352 | iamremote = 1; |
353 | fflag = 1; | |
354 | break; | |
5260325f | 355 | case 't': /* "to" */ |
8efc0c15 | 356 | iamremote = 1; |
357 | tflag = 1; | |
fe56c12b | 358 | #ifdef HAVE_CYGWIN |
359 | setmode(0, O_BINARY); | |
360 | #endif | |
8efc0c15 | 361 | break; |
8efc0c15 | 362 | default: |
363 | usage(); | |
364 | } | |
365 | argc -= optind; | |
366 | argv += optind; | |
367 | ||
368 | if ((pwd = getpwuid(userid = getuid())) == NULL) | |
261bd618 | 369 | fatal("unknown user %u", (u_int) userid); |
8efc0c15 | 370 | |
5260325f | 371 | if (!isatty(STDERR_FILENO)) |
8efc0c15 | 372 | showprogress = 0; |
373 | ||
374 | remin = STDIN_FILENO; | |
375 | remout = STDOUT_FILENO; | |
376 | ||
2b87da3b | 377 | if (fflag) { |
5260325f | 378 | /* Follow "protocol", send data. */ |
379 | (void) response(); | |
8efc0c15 | 380 | source(argc, argv); |
381 | exit(errs != 0); | |
382 | } | |
5260325f | 383 | if (tflag) { |
384 | /* Receive data. */ | |
8efc0c15 | 385 | sink(argc, argv); |
386 | exit(errs != 0); | |
387 | } | |
8efc0c15 | 388 | if (argc < 2) |
389 | usage(); | |
390 | if (argc > 2) | |
391 | targetshouldbedirectory = 1; | |
392 | ||
393 | remin = remout = -1; | |
252d1a24 | 394 | do_cmd_pid = -1; |
8efc0c15 | 395 | /* Command to be executed on remote system using "ssh". */ |
0ed28836 | 396 | (void) snprintf(cmd, sizeof cmd, "scp%s%s%s%s", |
397 | verbose_mode ? " -v" : "", | |
2e73a022 | 398 | iamrecursive ? " -r" : "", pflag ? " -p" : "", |
399 | targetshouldbedirectory ? " -d" : ""); | |
8efc0c15 | 400 | |
5260325f | 401 | (void) signal(SIGPIPE, lostconn); |
8efc0c15 | 402 | |
403 | if ((targ = colon(argv[argc - 1]))) /* Dest is remote host. */ | |
404 | toremote(targ, argc, argv); | |
405 | else { | |
8efc0c15 | 406 | if (targetshouldbedirectory) |
407 | verifydir(argv[argc - 1]); | |
16e8ab10 | 408 | tolocal(argc, argv); /* Dest is local host. */ |
8efc0c15 | 409 | } |
252d1a24 | 410 | /* |
411 | * Finally check the exit status of the ssh process, if one was forked | |
412 | * and no error has occured yet | |
413 | */ | |
414 | if (do_cmd_pid != -1 && errs == 0) { | |
415 | if (remin != -1) | |
416 | (void) close(remin); | |
417 | if (remout != -1) | |
418 | (void) close(remout); | |
419 | if (waitpid(do_cmd_pid, &status, 0) == -1) | |
420 | errs = 1; | |
421 | else { | |
422 | if (!WIFEXITED(status) || WEXITSTATUS(status) != 0) | |
423 | errs = 1; | |
424 | } | |
425 | } | |
8efc0c15 | 426 | exit(errs != 0); |
427 | } | |
428 | ||
429 | void | |
cf3248b8 | 430 | toremote(char *targ, int argc, char **argv) |
8efc0c15 | 431 | { |
99dfaccc | 432 | char *bp, *host, *src, *suser, *thost, *tuser, *arg; |
4116f5c0 | 433 | arglist alist; |
ac93e676 | 434 | int i; |
4116f5c0 | 435 | |
436 | memset(&alist, '\0', sizeof(alist)); | |
437 | alist.list = NULL; | |
8efc0c15 | 438 | |
439 | *targ++ = 0; | |
440 | if (*targ == 0) | |
441 | targ = "."; | |
442 | ||
ae0d2f42 | 443 | arg = xstrdup(argv[argc - 1]); |
99dfaccc | 444 | if ((thost = strrchr(arg, '@'))) { |
8efc0c15 | 445 | /* user@host */ |
446 | *thost++ = 0; | |
99dfaccc | 447 | tuser = arg; |
8efc0c15 | 448 | if (*tuser == '\0') |
449 | tuser = NULL; | |
8efc0c15 | 450 | } else { |
99dfaccc | 451 | thost = arg; |
8efc0c15 | 452 | tuser = NULL; |
453 | } | |
454 | ||
4116f5c0 | 455 | if (tuser != NULL && !okname(tuser)) { |
456 | xfree(arg); | |
457 | return; | |
458 | } | |
459 | ||
8efc0c15 | 460 | for (i = 0; i < argc - 1; i++) { |
461 | src = colon(argv[i]); | |
5260325f | 462 | if (src) { /* remote to remote */ |
4116f5c0 | 463 | freeargs(&alist); |
464 | addargs(&alist, "%s", ssh_program); | |
465 | if (verbose_mode) | |
466 | addargs(&alist, "-v"); | |
467 | addargs(&alist, "-x"); | |
468 | addargs(&alist, "-oClearAllForwardings yes"); | |
469 | addargs(&alist, "-n"); | |
470 | ||
8efc0c15 | 471 | *src++ = 0; |
472 | if (*src == 0) | |
473 | src = "."; | |
15748b4d | 474 | host = strrchr(argv[i], '@'); |
4116f5c0 | 475 | |
8efc0c15 | 476 | if (host) { |
477 | *host++ = 0; | |
48e671d5 | 478 | host = cleanhostname(host); |
8efc0c15 | 479 | suser = argv[i]; |
480 | if (*suser == '\0') | |
481 | suser = pwd->pw_name; | |
4116f5c0 | 482 | else if (!okname(suser)) |
0ec7661a | 483 | continue; |
4116f5c0 | 484 | addargs(&alist, "-l"); |
485 | addargs(&alist, "%s", suser); | |
48e671d5 | 486 | } else { |
487 | host = cleanhostname(argv[i]); | |
48e671d5 | 488 | } |
4116f5c0 | 489 | addargs(&alist, "%s", host); |
490 | addargs(&alist, "%s", cmd); | |
491 | addargs(&alist, "%s", src); | |
492 | addargs(&alist, "%s%s%s:%s", | |
493 | tuser ? tuser : "", tuser ? "@" : "", | |
494 | thost, targ); | |
495 | if (do_local_cmd(&alist) != 0) | |
815a8407 | 496 | errs = 1; |
5260325f | 497 | } else { /* local to remote */ |
8efc0c15 | 498 | if (remin == -1) { |
c0a8e7bb | 499 | xasprintf(&bp, "%s -t %s", cmd, targ); |
48e671d5 | 500 | host = cleanhostname(thost); |
2e73a022 | 501 | if (do_cmd(host, tuser, bp, &remin, |
ac93e676 | 502 | &remout) < 0) |
5260325f | 503 | exit(1); |
8efc0c15 | 504 | if (response() < 0) |
505 | exit(1); | |
5260325f | 506 | (void) xfree(bp); |
8efc0c15 | 507 | } |
5260325f | 508 | source(1, argv + i); |
8efc0c15 | 509 | } |
510 | } | |
2b8dc5e3 | 511 | xfree(arg); |
8efc0c15 | 512 | } |
513 | ||
514 | void | |
cf3248b8 | 515 | tolocal(int argc, char **argv) |
8efc0c15 | 516 | { |
8efc0c15 | 517 | char *bp, *host, *src, *suser; |
4116f5c0 | 518 | arglist alist; |
ac93e676 | 519 | int i; |
4116f5c0 | 520 | |
521 | memset(&alist, '\0', sizeof(alist)); | |
522 | alist.list = NULL; | |
8efc0c15 | 523 | |
524 | for (i = 0; i < argc - 1; i++) { | |
5260325f | 525 | if (!(src = colon(argv[i]))) { /* Local to local. */ |
4116f5c0 | 526 | freeargs(&alist); |
527 | addargs(&alist, "%s", _PATH_CP); | |
528 | if (iamrecursive) | |
529 | addargs(&alist, "-r"); | |
530 | if (pflag) | |
531 | addargs(&alist, "-p"); | |
532 | addargs(&alist, "%s", argv[i]); | |
533 | addargs(&alist, "%s", argv[argc-1]); | |
534 | if (do_local_cmd(&alist)) | |
8efc0c15 | 535 | ++errs; |
8efc0c15 | 536 | continue; |
537 | } | |
538 | *src++ = 0; | |
539 | if (*src == 0) | |
540 | src = "."; | |
15748b4d | 541 | if ((host = strrchr(argv[i], '@')) == NULL) { |
8efc0c15 | 542 | host = argv[i]; |
543 | suser = NULL; | |
544 | } else { | |
545 | *host++ = 0; | |
546 | suser = argv[i]; | |
547 | if (*suser == '\0') | |
548 | suser = pwd->pw_name; | |
8efc0c15 | 549 | } |
48e671d5 | 550 | host = cleanhostname(host); |
c0a8e7bb | 551 | xasprintf(&bp, "%s -f %s", cmd, src); |
ac93e676 | 552 | if (do_cmd(host, suser, bp, &remin, &remout) < 0) { |
5260325f | 553 | (void) xfree(bp); |
554 | ++errs; | |
555 | continue; | |
8efc0c15 | 556 | } |
5260325f | 557 | xfree(bp); |
8efc0c15 | 558 | sink(1, argv + argc - 1); |
5260325f | 559 | (void) close(remin); |
8efc0c15 | 560 | remin = remout = -1; |
561 | } | |
562 | } | |
563 | ||
564 | void | |
cf3248b8 | 565 | source(int argc, char **argv) |
8efc0c15 | 566 | { |
567 | struct stat stb; | |
568 | static BUF buffer; | |
569 | BUF *bp; | |
05624c18 | 570 | off_t i, amt, statbytes; |
571 | size_t result; | |
a056dfa2 | 572 | int fd = -1, haderr, indx; |
8efc0c15 | 573 | char *last, *name, buf[2048]; |
0fc791ba | 574 | int len; |
8efc0c15 | 575 | |
576 | for (indx = 0; indx < argc; ++indx) { | |
5260325f | 577 | name = argv[indx]; |
8efc0c15 | 578 | statbytes = 0; |
0fc791ba | 579 | len = strlen(name); |
580 | while (len > 1 && name[len-1] == '/') | |
581 | name[--len] = '\0'; | |
5720c10e | 582 | if (strchr(name, '\n') != NULL) { |
583 | run_err("%s: skipping, filename contains a newline", | |
584 | name); | |
585 | goto next; | |
586 | } | |
8efc0c15 | 587 | if ((fd = open(name, O_RDONLY, 0)) < 0) |
588 | goto syserr; | |
589 | if (fstat(fd, &stb) < 0) { | |
590 | syserr: run_err("%s: %s", name, strerror(errno)); | |
591 | goto next; | |
592 | } | |
593 | switch (stb.st_mode & S_IFMT) { | |
594 | case S_IFREG: | |
595 | break; | |
596 | case S_IFDIR: | |
597 | if (iamrecursive) { | |
598 | rsource(name, &stb); | |
599 | goto next; | |
600 | } | |
601 | /* FALLTHROUGH */ | |
602 | default: | |
603 | run_err("%s: not a regular file", name); | |
604 | goto next; | |
605 | } | |
606 | if ((last = strrchr(name, '/')) == NULL) | |
607 | last = name; | |
608 | else | |
609 | ++last; | |
610 | curfile = last; | |
611 | if (pflag) { | |
612 | /* | |
613 | * Make it compatible with possible future | |
614 | * versions expecting microseconds. | |
615 | */ | |
0ed28836 | 616 | (void) snprintf(buf, sizeof buf, "T%lu 0 %lu 0\n", |
1e3b8b07 | 617 | (u_long) stb.st_mtime, |
618 | (u_long) stb.st_atime); | |
dc54438a | 619 | (void) atomicio(vwrite, remout, buf, strlen(buf)); |
8efc0c15 | 620 | if (response() < 0) |
621 | goto next; | |
622 | } | |
623 | #define FILEMODEMASK (S_ISUID|S_ISGID|S_IRWXU|S_IRWXG|S_IRWXO) | |
bf1d27bd | 624 | snprintf(buf, sizeof buf, "C%04o %lld %s\n", |
1e3b8b07 | 625 | (u_int) (stb.st_mode & FILEMODEMASK), |
419094c6 | 626 | (long long)stb.st_size, last); |
5260325f | 627 | if (verbose_mode) { |
628 | fprintf(stderr, "Sending file modes: %s", buf); | |
5260325f | 629 | } |
dc54438a | 630 | (void) atomicio(vwrite, remout, buf, strlen(buf)); |
8efc0c15 | 631 | if (response() < 0) |
632 | goto next; | |
633 | if ((bp = allocbuf(&buffer, fd, 2048)) == NULL) { | |
29accf74 | 634 | next: if (fd != -1) { |
635 | (void) close(fd); | |
636 | fd = -1; | |
637 | } | |
8efc0c15 | 638 | continue; |
639 | } | |
b65c3807 | 640 | if (showprogress) |
641 | start_progress_meter(curfile, stb.st_size, &statbytes); | |
8efc0c15 | 642 | /* Keep writing after an error so that we stay sync'd up. */ |
643 | for (haderr = i = 0; i < stb.st_size; i += bp->cnt) { | |
644 | amt = bp->cnt; | |
645 | if (i + amt > stb.st_size) | |
646 | amt = stb.st_size - i; | |
647 | if (!haderr) { | |
1d1ffb87 | 648 | result = atomicio(read, fd, bp->buf, amt); |
8efc0c15 | 649 | if (result != amt) |
05624c18 | 650 | haderr = errno; |
8efc0c15 | 651 | } |
652 | if (haderr) | |
dc54438a | 653 | (void) atomicio(vwrite, remout, bp->buf, amt); |
8efc0c15 | 654 | else { |
dc54438a | 655 | result = atomicio(vwrite, remout, bp->buf, amt); |
8efc0c15 | 656 | if (result != amt) |
05624c18 | 657 | haderr = errno; |
8efc0c15 | 658 | statbytes += result; |
659 | } | |
10adbb52 | 660 | if (limit_rate) |
6ea3c52a | 661 | bwlimit(amt); |
8efc0c15 | 662 | } |
5260325f | 663 | if (showprogress) |
b65c3807 | 664 | stop_progress_meter(); |
8efc0c15 | 665 | |
29accf74 | 666 | if (fd != -1) { |
667 | if (close(fd) < 0 && !haderr) | |
668 | haderr = errno; | |
669 | fd = -1; | |
670 | } | |
8efc0c15 | 671 | if (!haderr) |
dc54438a | 672 | (void) atomicio(vwrite, remout, "", 1); |
8efc0c15 | 673 | else |
674 | run_err("%s: %s", name, strerror(haderr)); | |
5260325f | 675 | (void) response(); |
8efc0c15 | 676 | } |
677 | } | |
678 | ||
679 | void | |
cf3248b8 | 680 | rsource(char *name, struct stat *statp) |
8efc0c15 | 681 | { |
682 | DIR *dirp; | |
683 | struct dirent *dp; | |
684 | char *last, *vect[1], path[1100]; | |
685 | ||
686 | if (!(dirp = opendir(name))) { | |
687 | run_err("%s: %s", name, strerror(errno)); | |
688 | return; | |
689 | } | |
690 | last = strrchr(name, '/'); | |
691 | if (last == 0) | |
692 | last = name; | |
693 | else | |
694 | last++; | |
695 | if (pflag) { | |
0ed28836 | 696 | (void) snprintf(path, sizeof(path), "T%lu 0 %lu 0\n", |
1e3b8b07 | 697 | (u_long) statp->st_mtime, |
698 | (u_long) statp->st_atime); | |
dc54438a | 699 | (void) atomicio(vwrite, remout, path, strlen(path)); |
8efc0c15 | 700 | if (response() < 0) { |
701 | closedir(dirp); | |
702 | return; | |
703 | } | |
704 | } | |
0ed28836 | 705 | (void) snprintf(path, sizeof path, "D%04o %d %.1024s\n", |
1e3b8b07 | 706 | (u_int) (statp->st_mode & FILEMODEMASK), 0, last); |
5260325f | 707 | if (verbose_mode) |
708 | fprintf(stderr, "Entering directory: %s", path); | |
dc54438a | 709 | (void) atomicio(vwrite, remout, path, strlen(path)); |
8efc0c15 | 710 | if (response() < 0) { |
711 | closedir(dirp); | |
712 | return; | |
713 | } | |
e5ff6ecf | 714 | while ((dp = readdir(dirp)) != NULL) { |
8efc0c15 | 715 | if (dp->d_ino == 0) |
716 | continue; | |
717 | if (!strcmp(dp->d_name, ".") || !strcmp(dp->d_name, "..")) | |
718 | continue; | |
719 | if (strlen(name) + 1 + strlen(dp->d_name) >= sizeof(path) - 1) { | |
720 | run_err("%s/%s: name too long", name, dp->d_name); | |
721 | continue; | |
722 | } | |
0ed28836 | 723 | (void) snprintf(path, sizeof path, "%s/%s", name, dp->d_name); |
8efc0c15 | 724 | vect[0] = path; |
725 | source(1, vect); | |
726 | } | |
5260325f | 727 | (void) closedir(dirp); |
dc54438a | 728 | (void) atomicio(vwrite, remout, "E\n", 2); |
5260325f | 729 | (void) response(); |
8efc0c15 | 730 | } |
731 | ||
6ea3c52a | 732 | void |
733 | bwlimit(int amount) | |
734 | { | |
735 | static struct timeval bwstart, bwend; | |
736 | static int lamt, thresh = 16384; | |
ca75d7de | 737 | u_int64_t waitlen; |
6ea3c52a | 738 | struct timespec ts, rm; |
739 | ||
740 | if (!timerisset(&bwstart)) { | |
741 | gettimeofday(&bwstart, NULL); | |
742 | return; | |
743 | } | |
744 | ||
745 | lamt += amount; | |
746 | if (lamt < thresh) | |
747 | return; | |
748 | ||
749 | gettimeofday(&bwend, NULL); | |
750 | timersub(&bwend, &bwstart, &bwend); | |
751 | if (!timerisset(&bwend)) | |
752 | return; | |
753 | ||
754 | lamt *= 8; | |
ca75d7de | 755 | waitlen = (double)1000000L * lamt / limit_rate; |
6ea3c52a | 756 | |
ca75d7de | 757 | bwstart.tv_sec = waitlen / 1000000L; |
758 | bwstart.tv_usec = waitlen % 1000000L; | |
6ea3c52a | 759 | |
760 | if (timercmp(&bwstart, &bwend, >)) { | |
761 | timersub(&bwstart, &bwend, &bwend); | |
762 | ||
763 | /* Adjust the wait time */ | |
764 | if (bwend.tv_sec) { | |
765 | thresh /= 2; | |
766 | if (thresh < 2048) | |
767 | thresh = 2048; | |
768 | } else if (bwend.tv_usec < 100) { | |
769 | thresh *= 2; | |
770 | if (thresh > 32768) | |
771 | thresh = 32768; | |
772 | } | |
773 | ||
774 | TIMEVAL_TO_TIMESPEC(&bwend, &ts); | |
775 | while (nanosleep(&ts, &rm) == -1) { | |
776 | if (errno != EINTR) | |
777 | break; | |
778 | ts = rm; | |
779 | } | |
780 | } | |
781 | ||
782 | lamt = 0; | |
783 | gettimeofday(&bwstart, NULL); | |
784 | } | |
785 | ||
8efc0c15 | 786 | void |
cf3248b8 | 787 | sink(int argc, char **argv) |
8efc0c15 | 788 | { |
789 | static BUF buffer; | |
790 | struct stat stb; | |
5260325f | 791 | enum { |
792 | YES, NO, DISPLAYED | |
793 | } wrerr; | |
8efc0c15 | 794 | BUF *bp; |
05624c18 | 795 | off_t i; |
2ceb8101 | 796 | size_t j, count; |
ac93e676 | 797 | int amt, exists, first, ofd; |
798 | mode_t mode, omode, mask; | |
b65c3807 | 799 | off_t size, statbytes; |
14a9a859 | 800 | int setimes, targisdir, wrerrno = 0; |
8efc0c15 | 801 | char ch, *cp, *np, *targ, *why, *vect[1], buf[2048]; |
188adeb2 | 802 | struct timeval tv[2]; |
8efc0c15 | 803 | |
36967a16 | 804 | #define atime tv[0] |
805 | #define mtime tv[1] | |
007607ab | 806 | #define SCREWUP(str) { why = str; goto screwup; } |
8efc0c15 | 807 | |
808 | setimes = targisdir = 0; | |
809 | mask = umask(0); | |
810 | if (!pflag) | |
5260325f | 811 | (void) umask(mask); |
8efc0c15 | 812 | if (argc != 1) { |
813 | run_err("ambiguous target"); | |
814 | exit(1); | |
815 | } | |
816 | targ = *argv; | |
817 | if (targetshouldbedirectory) | |
818 | verifydir(targ); | |
5260325f | 819 | |
dc54438a | 820 | (void) atomicio(vwrite, remout, "", 1); |
8efc0c15 | 821 | if (stat(targ, &stb) == 0 && S_ISDIR(stb.st_mode)) |
822 | targisdir = 1; | |
823 | for (first = 1;; first = 0) { | |
824 | cp = buf; | |
05624c18 | 825 | if (atomicio(read, remin, cp, 1) != 1) |
8efc0c15 | 826 | return; |
827 | if (*cp++ == '\n') | |
828 | SCREWUP("unexpected <newline>"); | |
829 | do { | |
1d1ffb87 | 830 | if (atomicio(read, remin, &ch, sizeof(ch)) != sizeof(ch)) |
8efc0c15 | 831 | SCREWUP("lost connection"); |
832 | *cp++ = ch; | |
833 | } while (cp < &buf[sizeof(buf) - 1] && ch != '\n'); | |
834 | *cp = 0; | |
f09aa22c | 835 | if (verbose_mode) |
836 | fprintf(stderr, "Sink: %s", buf); | |
8efc0c15 | 837 | |
838 | if (buf[0] == '\01' || buf[0] == '\02') { | |
839 | if (iamremote == 0) | |
dc54438a | 840 | (void) atomicio(vwrite, STDERR_FILENO, |
71c0d06a | 841 | buf + 1, strlen(buf + 1)); |
8efc0c15 | 842 | if (buf[0] == '\02') |
843 | exit(1); | |
844 | ++errs; | |
845 | continue; | |
846 | } | |
847 | if (buf[0] == 'E') { | |
dc54438a | 848 | (void) atomicio(vwrite, remout, "", 1); |
8efc0c15 | 849 | return; |
850 | } | |
8efc0c15 | 851 | if (ch == '\n') |
852 | *--cp = 0; | |
853 | ||
8efc0c15 | 854 | cp = buf; |
855 | if (*cp == 'T') { | |
856 | setimes++; | |
857 | cp++; | |
36967a16 | 858 | mtime.tv_sec = strtol(cp, &cp, 10); |
859 | if (!cp || *cp++ != ' ') | |
8efc0c15 | 860 | SCREWUP("mtime.sec not delimited"); |
36967a16 | 861 | mtime.tv_usec = strtol(cp, &cp, 10); |
862 | if (!cp || *cp++ != ' ') | |
8efc0c15 | 863 | SCREWUP("mtime.usec not delimited"); |
36967a16 | 864 | atime.tv_sec = strtol(cp, &cp, 10); |
865 | if (!cp || *cp++ != ' ') | |
8efc0c15 | 866 | SCREWUP("atime.sec not delimited"); |
36967a16 | 867 | atime.tv_usec = strtol(cp, &cp, 10); |
868 | if (!cp || *cp++ != '\0') | |
8efc0c15 | 869 | SCREWUP("atime.usec not delimited"); |
dc54438a | 870 | (void) atomicio(vwrite, remout, "", 1); |
8efc0c15 | 871 | continue; |
872 | } | |
873 | if (*cp != 'C' && *cp != 'D') { | |
874 | /* | |
875 | * Check for the case "rcp remote:foo\* local:bar". | |
876 | * In this case, the line "No match." can be returned | |
877 | * by the shell before the rcp command on the remote is | |
878 | * executed so the ^Aerror_message convention isn't | |
879 | * followed. | |
880 | */ | |
881 | if (first) { | |
882 | run_err("%s", cp); | |
883 | exit(1); | |
884 | } | |
885 | SCREWUP("expected control record"); | |
886 | } | |
887 | mode = 0; | |
888 | for (++cp; cp < buf + 5; cp++) { | |
889 | if (*cp < '0' || *cp > '7') | |
890 | SCREWUP("bad mode"); | |
891 | mode = (mode << 3) | (*cp - '0'); | |
892 | } | |
893 | if (*cp++ != ' ') | |
894 | SCREWUP("mode not delimited"); | |
895 | ||
e5ff6ecf | 896 | for (size = 0; isdigit(*cp);) |
8efc0c15 | 897 | size = size * 10 + (*cp++ - '0'); |
898 | if (*cp++ != ' ') | |
899 | SCREWUP("size not delimited"); | |
f09aa22c | 900 | if ((strchr(cp, '/') != NULL) || (strcmp(cp, "..") == 0)) { |
901 | run_err("error: unexpected filename: %s", cp); | |
902 | exit(1); | |
903 | } | |
8efc0c15 | 904 | if (targisdir) { |
905 | static char *namebuf; | |
2ceb8101 | 906 | static size_t cursize; |
8efc0c15 | 907 | size_t need; |
908 | ||
909 | need = strlen(targ) + strlen(cp) + 250; | |
0ed28836 | 910 | if (need > cursize) { |
911 | if (namebuf) | |
912 | xfree(namebuf); | |
5260325f | 913 | namebuf = xmalloc(need); |
0ed28836 | 914 | cursize = need; |
915 | } | |
916 | (void) snprintf(namebuf, need, "%s%s%s", targ, | |
39f9599a | 917 | strcmp(targ, "/") ? "/" : "", cp); |
8efc0c15 | 918 | np = namebuf; |
919 | } else | |
920 | np = targ; | |
921 | curfile = cp; | |
922 | exists = stat(np, &stb) == 0; | |
923 | if (buf[0] == 'D') { | |
924 | int mod_flag = pflag; | |
f09aa22c | 925 | if (!iamrecursive) |
926 | SCREWUP("received directory without -r"); | |
8efc0c15 | 927 | if (exists) { |
928 | if (!S_ISDIR(stb.st_mode)) { | |
929 | errno = ENOTDIR; | |
930 | goto bad; | |
931 | } | |
932 | if (pflag) | |
5260325f | 933 | (void) chmod(np, mode); |
8efc0c15 | 934 | } else { |
5260325f | 935 | /* Handle copying from a read-only |
936 | directory */ | |
8efc0c15 | 937 | mod_flag = 1; |
938 | if (mkdir(np, mode | S_IRWXU) < 0) | |
939 | goto bad; | |
940 | } | |
5c470997 | 941 | vect[0] = xstrdup(np); |
8efc0c15 | 942 | sink(1, vect); |
943 | if (setimes) { | |
944 | setimes = 0; | |
e68225b2 | 945 | if (utimes(vect[0], tv) < 0) |
5260325f | 946 | run_err("%s: set times: %s", |
e68225b2 | 947 | vect[0], strerror(errno)); |
8efc0c15 | 948 | } |
949 | if (mod_flag) | |
e68225b2 | 950 | (void) chmod(vect[0], mode); |
951 | if (vect[0]) | |
952 | xfree(vect[0]); | |
8efc0c15 | 953 | continue; |
954 | } | |
955 | omode = mode; | |
956 | mode |= S_IWRITE; | |
3e4fc5f9 | 957 | if ((ofd = open(np, O_WRONLY|O_CREAT, mode)) < 0) { |
8efc0c15 | 958 | bad: run_err("%s: %s", np, strerror(errno)); |
959 | continue; | |
960 | } | |
dc54438a | 961 | (void) atomicio(vwrite, remout, "", 1); |
8efc0c15 | 962 | if ((bp = allocbuf(&buffer, ofd, 4096)) == NULL) { |
5260325f | 963 | (void) close(ofd); |
8efc0c15 | 964 | continue; |
965 | } | |
966 | cp = bp->buf; | |
967 | wrerr = NO; | |
968 | ||
8efc0c15 | 969 | statbytes = 0; |
b65c3807 | 970 | if (showprogress) |
971 | start_progress_meter(curfile, size, &statbytes); | |
8efc0c15 | 972 | for (count = i = 0; i < size; i += 4096) { |
973 | amt = 4096; | |
974 | if (i + amt > size) | |
975 | amt = size - i; | |
976 | count += amt; | |
977 | do { | |
f581b6e8 | 978 | j = atomicio(read, remin, cp, amt); |
05624c18 | 979 | if (j == 0) { |
8efc0c15 | 980 | run_err("%s", j ? strerror(errno) : |
e5ff6ecf | 981 | "dropped connection"); |
8efc0c15 | 982 | exit(1); |
983 | } | |
984 | amt -= j; | |
985 | cp += j; | |
5260325f | 986 | statbytes += j; |
8efc0c15 | 987 | } while (amt > 0); |
b6453d99 | 988 | |
10adbb52 | 989 | if (limit_rate) |
6ea3c52a | 990 | bwlimit(4096); |
991 | ||
8efc0c15 | 992 | if (count == bp->cnt) { |
993 | /* Keep reading so we stay sync'd up. */ | |
994 | if (wrerr == NO) { | |
05624c18 | 995 | if (atomicio(vwrite, ofd, bp->buf, |
996 | count) != count) { | |
8efc0c15 | 997 | wrerr = YES; |
05624c18 | 998 | wrerrno = errno; |
8efc0c15 | 999 | } |
1000 | } | |
1001 | count = 0; | |
1002 | cp = bp->buf; | |
1003 | } | |
1004 | } | |
1005 | if (showprogress) | |
b65c3807 | 1006 | stop_progress_meter(); |
8efc0c15 | 1007 | if (count != 0 && wrerr == NO && |
05624c18 | 1008 | atomicio(vwrite, ofd, bp->buf, count) != count) { |
8efc0c15 | 1009 | wrerr = YES; |
05624c18 | 1010 | wrerrno = errno; |
8efc0c15 | 1011 | } |
25a6efd8 | 1012 | if (wrerr == NO && ftruncate(ofd, size) != 0) { |
8efc0c15 | 1013 | run_err("%s: truncate: %s", np, strerror(errno)); |
1014 | wrerr = DISPLAYED; | |
1015 | } | |
8efc0c15 | 1016 | if (pflag) { |
1017 | if (exists || omode != mode) | |
77bb0bca | 1018 | #ifdef HAVE_FCHMOD |
7e693c81 | 1019 | if (fchmod(ofd, omode)) { |
77bb0bca | 1020 | #else /* HAVE_FCHMOD */ |
7e693c81 | 1021 | if (chmod(np, omode)) { |
77bb0bca | 1022 | #endif /* HAVE_FCHMOD */ |
8efc0c15 | 1023 | run_err("%s: set mode: %s", |
e5ff6ecf | 1024 | np, strerror(errno)); |
7e693c81 | 1025 | wrerr = DISPLAYED; |
1026 | } | |
8efc0c15 | 1027 | } else { |
1028 | if (!exists && omode != mode) | |
77bb0bca | 1029 | #ifdef HAVE_FCHMOD |
7e693c81 | 1030 | if (fchmod(ofd, omode & ~mask)) { |
77bb0bca | 1031 | #else /* HAVE_FCHMOD */ |
7e693c81 | 1032 | if (chmod(np, omode & ~mask)) { |
77bb0bca | 1033 | #endif /* HAVE_FCHMOD */ |
8efc0c15 | 1034 | run_err("%s: set mode: %s", |
e5ff6ecf | 1035 | np, strerror(errno)); |
7e693c81 | 1036 | wrerr = DISPLAYED; |
1037 | } | |
8efc0c15 | 1038 | } |
704b1659 | 1039 | if (close(ofd) == -1) { |
1040 | wrerr = YES; | |
1041 | wrerrno = errno; | |
1042 | } | |
5260325f | 1043 | (void) response(); |
8efc0c15 | 1044 | if (setimes && wrerr == NO) { |
1045 | setimes = 0; | |
188adeb2 | 1046 | if (utimes(np, tv) < 0) { |
8efc0c15 | 1047 | run_err("%s: set times: %s", |
e5ff6ecf | 1048 | np, strerror(errno)); |
8efc0c15 | 1049 | wrerr = DISPLAYED; |
1050 | } | |
1051 | } | |
5260325f | 1052 | switch (wrerr) { |
8efc0c15 | 1053 | case YES: |
1054 | run_err("%s: %s", np, strerror(wrerrno)); | |
1055 | break; | |
1056 | case NO: | |
dc54438a | 1057 | (void) atomicio(vwrite, remout, "", 1); |
8efc0c15 | 1058 | break; |
1059 | case DISPLAYED: | |
1060 | break; | |
1061 | } | |
1062 | } | |
1063 | screwup: | |
1064 | run_err("protocol error: %s", why); | |
1065 | exit(1); | |
1066 | } | |
1067 | ||
1068 | int | |
d5bb9418 | 1069 | response(void) |
8efc0c15 | 1070 | { |
1071 | char ch, *cp, resp, rbuf[2048]; | |
1072 | ||
1d1ffb87 | 1073 | if (atomicio(read, remin, &resp, sizeof(resp)) != sizeof(resp)) |
8efc0c15 | 1074 | lostconn(0); |
1075 | ||
1076 | cp = rbuf; | |
5260325f | 1077 | switch (resp) { |
1078 | case 0: /* ok */ | |
8efc0c15 | 1079 | return (0); |
1080 | default: | |
1081 | *cp++ = resp; | |
1082 | /* FALLTHROUGH */ | |
5260325f | 1083 | case 1: /* error, followed by error msg */ |
1084 | case 2: /* fatal error, "" */ | |
8efc0c15 | 1085 | do { |
1d1ffb87 | 1086 | if (atomicio(read, remin, &ch, sizeof(ch)) != sizeof(ch)) |
8efc0c15 | 1087 | lostconn(0); |
1088 | *cp++ = ch; | |
1089 | } while (cp < &rbuf[sizeof(rbuf) - 1] && ch != '\n'); | |
1090 | ||
1091 | if (!iamremote) | |
dc54438a | 1092 | (void) atomicio(vwrite, STDERR_FILENO, rbuf, cp - rbuf); |
8efc0c15 | 1093 | ++errs; |
1094 | if (resp == 1) | |
1095 | return (-1); | |
1096 | exit(1); | |
1097 | } | |
1098 | /* NOTREACHED */ | |
1099 | } | |
1100 | ||
1101 | void | |
d5bb9418 | 1102 | usage(void) |
8efc0c15 | 1103 | { |
f1278af7 | 1104 | (void) fprintf(stderr, |
433e60ac | 1105 | "usage: scp [-1246BCpqrv] [-c cipher] [-F ssh_config] [-i identity_file]\n" |
1106 | " [-l limit] [-o ssh_option] [-P port] [-S program]\n" | |
3015d321 | 1107 | " [[user@]host1:]file1 [...] [[user@]host2:]file2\n"); |
8efc0c15 | 1108 | exit(1); |
1109 | } | |
1110 | ||
1111 | void | |
5260325f | 1112 | run_err(const char *fmt,...) |
8efc0c15 | 1113 | { |
1114 | static FILE *fp; | |
1115 | va_list ap; | |
8efc0c15 | 1116 | |
1117 | ++errs; | |
d6157b67 | 1118 | if (fp != NULL || (remout != -1 && (fp = fdopen(remout, "w")))) { |
1119 | (void) fprintf(fp, "%c", 0x01); | |
1120 | (void) fprintf(fp, "scp: "); | |
1121 | va_start(ap, fmt); | |
1122 | (void) vfprintf(fp, fmt, ap); | |
1123 | va_end(ap); | |
1124 | (void) fprintf(fp, "\n"); | |
1125 | (void) fflush(fp); | |
1126 | } | |
5260325f | 1127 | |
1128 | if (!iamremote) { | |
b92964b7 | 1129 | va_start(ap, fmt); |
5260325f | 1130 | vfprintf(stderr, fmt, ap); |
b92964b7 | 1131 | va_end(ap); |
5260325f | 1132 | fprintf(stderr, "\n"); |
1133 | } | |
8efc0c15 | 1134 | } |
1135 | ||
8efc0c15 | 1136 | void |
cf3248b8 | 1137 | verifydir(char *cp) |
8efc0c15 | 1138 | { |
1139 | struct stat stb; | |
1140 | ||
1141 | if (!stat(cp, &stb)) { | |
1142 | if (S_ISDIR(stb.st_mode)) | |
1143 | return; | |
1144 | errno = ENOTDIR; | |
1145 | } | |
1146 | run_err("%s: %s", cp, strerror(errno)); | |
8f4ab41b | 1147 | killchild(0); |
8efc0c15 | 1148 | } |
1149 | ||
1150 | int | |
cf3248b8 | 1151 | okname(char *cp0) |
8efc0c15 | 1152 | { |
1153 | int c; | |
1154 | char *cp; | |
1155 | ||
1156 | cp = cp0; | |
1157 | do { | |
cb220a93 | 1158 | c = (int)*cp; |
8efc0c15 | 1159 | if (c & 0200) |
1160 | goto bad; | |
0ec7661a | 1161 | if (!isalpha(c) && !isdigit(c)) { |
1162 | switch (c) { | |
1163 | case '\'': | |
1164 | case '"': | |
1165 | case '`': | |
1166 | case ' ': | |
1167 | case '#': | |
1168 | goto bad; | |
1169 | default: | |
1170 | break; | |
1171 | } | |
1172 | } | |
8efc0c15 | 1173 | } while (*++cp); |
1174 | return (1); | |
1175 | ||
c8d54615 | 1176 | bad: fprintf(stderr, "%s: invalid user name\n", cp0); |
8efc0c15 | 1177 | return (0); |
1178 | } | |
1179 | ||
1180 | BUF * | |
cf3248b8 | 1181 | allocbuf(BUF *bp, int fd, int blksize) |
8efc0c15 | 1182 | { |
1183 | size_t size; | |
98a7c37b | 1184 | #ifdef HAVE_STRUCT_STAT_ST_BLKSIZE |
8efc0c15 | 1185 | struct stat stb; |
1186 | ||
1187 | if (fstat(fd, &stb) < 0) { | |
1188 | run_err("fstat: %s", strerror(errno)); | |
1189 | return (0); | |
1190 | } | |
a0a14bcd | 1191 | size = roundup(stb.st_blksize, blksize); |
1192 | if (size == 0) | |
5260325f | 1193 | size = blksize; |
98a7c37b | 1194 | #else /* HAVE_STRUCT_STAT_ST_BLKSIZE */ |
2b87da3b | 1195 | size = blksize; |
98a7c37b | 1196 | #endif /* HAVE_STRUCT_STAT_ST_BLKSIZE */ |
8efc0c15 | 1197 | if (bp->cnt >= size) |
1198 | return (bp); | |
5260325f | 1199 | if (bp->buf == NULL) |
1200 | bp->buf = xmalloc(size); | |
1201 | else | |
c5d10563 | 1202 | bp->buf = xrealloc(bp->buf, 1, size); |
46660a9e | 1203 | memset(bp->buf, 0, size); |
8efc0c15 | 1204 | bp->cnt = size; |
1205 | return (bp); | |
1206 | } | |
1207 | ||
1208 | void | |
cf3248b8 | 1209 | lostconn(int signo) |
8efc0c15 | 1210 | { |
1211 | if (!iamremote) | |
08c260ea | 1212 | write(STDERR_FILENO, "lost connection\n", 16); |
1213 | if (signo) | |
1214 | _exit(1); | |
1215 | else | |
1216 | exit(1); | |
8efc0c15 | 1217 | } |