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Commit | Line | Data |
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8efc0c15 | 1 | /* |
bcbf86ec | 2 | * scp - secure remote copy. This is basically patched BSD rcp which |
3 | * uses ssh to do the data transfer (instead of using rcmd). | |
6ae2364d | 4 | * |
bcbf86ec | 5 | * NOTE: This version should NOT be suid root. (This uses ssh to |
6 | * do the transfer and ssh has the necessary privileges.) | |
6ae2364d | 7 | * |
5260325f | 8 | * 1995 Timo Rinne <tri@iki.fi>, Tatu Ylonen <ylo@cs.hut.fi> |
6ae2364d | 9 | * |
bcbf86ec | 10 | * As far as I am concerned, the code I have written for this software |
11 | * can be used freely for any purpose. Any derived versions of this | |
12 | * software must be clearly marked as such, and if the derived work is | |
13 | * incompatible with the protocol description in the RFC file, it must be | |
14 | * called by a name other than "ssh" or "Secure Shell". | |
15 | */ | |
16 | /* | |
f3c7c613 | 17 | * Copyright (c) 1999 Theo de Raadt. All rights reserved. |
18 | * Copyright (c) 1999 Aaron Campbell. All rights reserved. | |
bcbf86ec | 19 | * |
20 | * Redistribution and use in source and binary forms, with or without | |
21 | * modification, are permitted provided that the following conditions | |
22 | * are met: | |
23 | * 1. Redistributions of source code must retain the above copyright | |
24 | * notice, this list of conditions and the following disclaimer. | |
25 | * 2. Redistributions in binary form must reproduce the above copyright | |
26 | * notice, this list of conditions and the following disclaimer in the | |
27 | * documentation and/or other materials provided with the distribution. | |
28 | * | |
29 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR | |
30 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES | |
31 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. | |
32 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, | |
33 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |
34 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
35 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
36 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
37 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF | |
38 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
39 | */ | |
8efc0c15 | 40 | |
41 | /* | |
2e73a022 | 42 | * Parts from: |
43 | * | |
8efc0c15 | 44 | * Copyright (c) 1983, 1990, 1992, 1993, 1995 |
45 | * The Regents of the University of California. All rights reserved. | |
46 | * | |
47 | * Redistribution and use in source and binary forms, with or without | |
48 | * modification, are permitted provided that the following conditions | |
49 | * are met: | |
50 | * 1. Redistributions of source code must retain the above copyright | |
51 | * notice, this list of conditions and the following disclaimer. | |
52 | * 2. Redistributions in binary form must reproduce the above copyright | |
53 | * notice, this list of conditions and the following disclaimer in the | |
54 | * documentation and/or other materials provided with the distribution. | |
d981089c | 55 | * 3. Neither the name of the University nor the names of its contributors |
8efc0c15 | 56 | * may be used to endorse or promote products derived from this software |
57 | * without specific prior written permission. | |
58 | * | |
59 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | |
60 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
61 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
62 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
63 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
64 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
65 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
66 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
67 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
68 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
69 | * SUCH DAMAGE. | |
70 | * | |
8efc0c15 | 71 | */ |
72 | ||
73 | #include "includes.h" | |
fd6168c1 | 74 | RCSID("$OpenBSD: scp.c,v 1.126 2005/09/13 23:40:07 djm Exp $"); |
8efc0c15 | 75 | |
8efc0c15 | 76 | #include "xmalloc.h" |
42f11eb2 | 77 | #include "atomicio.h" |
78 | #include "pathnames.h" | |
79 | #include "log.h" | |
36a358ca | 80 | #include "misc.h" |
b65c3807 | 81 | #include "progressmeter.h" |
8efc0c15 | 82 | |
260d427b | 83 | extern char *__progname; |
260d427b | 84 | |
6ea3c52a | 85 | void bwlimit(int); |
86 | ||
8a624ebf | 87 | /* Struct for addargs */ |
88 | arglist args; | |
94ec8c6b | 89 | |
6ea3c52a | 90 | /* Bandwidth limit */ |
10adbb52 | 91 | off_t limit_rate = 0; |
6ea3c52a | 92 | |
8efc0c15 | 93 | /* Name of current file being transferred. */ |
94 | char *curfile; | |
95 | ||
96 | /* This is set to non-zero to enable verbose mode. */ | |
5260325f | 97 | int verbose_mode = 0; |
8efc0c15 | 98 | |
8efc0c15 | 99 | /* This is set to zero if the progressmeter is not desired. */ |
100 | int showprogress = 1; | |
101 | ||
2e73a022 | 102 | /* This is the program to execute for the secured connection. ("ssh" or -S) */ |
42f11eb2 | 103 | char *ssh_program = _PATH_SSH_PROGRAM; |
2e73a022 | 104 | |
252d1a24 | 105 | /* This is used to store the pid of ssh_program */ |
0f764b2f | 106 | pid_t do_cmd_pid = -1; |
107 | ||
108 | static void | |
109 | killchild(int signo) | |
110 | { | |
3c03ad3f | 111 | if (do_cmd_pid > 1) { |
8f4ab41b | 112 | kill(do_cmd_pid, signo ? signo : SIGTERM); |
3c03ad3f | 113 | waitpid(do_cmd_pid, NULL, 0); |
114 | } | |
0f764b2f | 115 | |
8f4ab41b | 116 | if (signo) |
117 | _exit(1); | |
118 | exit(1); | |
0f764b2f | 119 | } |
252d1a24 | 120 | |
aa3378df | 121 | /* |
122 | * This function executes the given command as the specified user on the | |
123 | * given host. This returns < 0 if execution fails, and >= 0 otherwise. This | |
124 | * assigns the input and output file descriptors on success. | |
125 | */ | |
8efc0c15 | 126 | |
6ae2364d | 127 | int |
2e73a022 | 128 | do_cmd(char *host, char *remuser, char *cmd, int *fdin, int *fdout, int argc) |
8efc0c15 | 129 | { |
5260325f | 130 | int pin[2], pout[2], reserved[2]; |
131 | ||
132 | if (verbose_mode) | |
0b2988ca | 133 | fprintf(stderr, |
134 | "Executing: program %s host %s, user %s, command %s\n", | |
135 | ssh_program, host, | |
136 | remuser ? remuser : "(unspecified)", cmd); | |
5260325f | 137 | |
aa3378df | 138 | /* |
139 | * Reserve two descriptors so that the real pipes won't get | |
140 | * descriptors 0 and 1 because that will screw up dup2 below. | |
141 | */ | |
5260325f | 142 | pipe(reserved); |
143 | ||
144 | /* Create a socket pair for communicating with ssh. */ | |
145 | if (pipe(pin) < 0) | |
146 | fatal("pipe: %s", strerror(errno)); | |
147 | if (pipe(pout) < 0) | |
148 | fatal("pipe: %s", strerror(errno)); | |
149 | ||
150 | /* Free the reserved descriptors. */ | |
151 | close(reserved[0]); | |
152 | close(reserved[1]); | |
153 | ||
1fb23629 | 154 | /* Fork a child to execute the command on the remote host using ssh. */ |
252d1a24 | 155 | do_cmd_pid = fork(); |
156 | if (do_cmd_pid == 0) { | |
5260325f | 157 | /* Child. */ |
158 | close(pin[1]); | |
159 | close(pout[0]); | |
160 | dup2(pin[0], 0); | |
161 | dup2(pout[1], 1); | |
162 | close(pin[0]); | |
163 | close(pout[1]); | |
164 | ||
94ec8c6b | 165 | args.list[0] = ssh_program; |
166 | if (remuser != NULL) | |
8a624ebf | 167 | addargs(&args, "-l%s", remuser); |
168 | addargs(&args, "%s", host); | |
169 | addargs(&args, "%s", cmd); | |
5260325f | 170 | |
94ec8c6b | 171 | execvp(ssh_program, args.list); |
2e73a022 | 172 | perror(ssh_program); |
5260325f | 173 | exit(1); |
252d1a24 | 174 | } else if (do_cmd_pid == -1) { |
175 | fatal("fork: %s", strerror(errno)); | |
8efc0c15 | 176 | } |
5260325f | 177 | /* Parent. Close the other side, and return the local side. */ |
178 | close(pin[0]); | |
179 | *fdout = pin[1]; | |
180 | close(pout[1]); | |
181 | *fdin = pout[0]; | |
0f764b2f | 182 | signal(SIGTERM, killchild); |
183 | signal(SIGINT, killchild); | |
184 | signal(SIGHUP, killchild); | |
5260325f | 185 | return 0; |
8efc0c15 | 186 | } |
187 | ||
8efc0c15 | 188 | typedef struct { |
2ceb8101 | 189 | size_t cnt; |
8efc0c15 | 190 | char *buf; |
191 | } BUF; | |
192 | ||
5260325f | 193 | BUF *allocbuf(BUF *, int, int); |
5260325f | 194 | void lostconn(int); |
195 | void nospace(void); | |
196 | int okname(char *); | |
197 | void run_err(const char *,...); | |
198 | void verifydir(char *); | |
8efc0c15 | 199 | |
8efc0c15 | 200 | struct passwd *pwd; |
5260325f | 201 | uid_t userid; |
8efc0c15 | 202 | int errs, remin, remout; |
203 | int pflag, iamremote, iamrecursive, targetshouldbedirectory; | |
204 | ||
205 | #define CMDNEEDS 64 | |
206 | char cmd[CMDNEEDS]; /* must hold "rcp -r -p -d\0" */ | |
207 | ||
5260325f | 208 | int response(void); |
209 | void rsource(char *, struct stat *); | |
210 | void sink(int, char *[]); | |
211 | void source(int, char *[]); | |
212 | void tolocal(int, char *[]); | |
213 | void toremote(char *, int, char *[]); | |
214 | void usage(void); | |
8efc0c15 | 215 | |
216 | int | |
cf3248b8 | 217 | main(int argc, char **argv) |
8efc0c15 | 218 | { |
252d1a24 | 219 | int ch, fflag, tflag, status; |
6ea3c52a | 220 | double speed; |
221 | char *targ, *endp; | |
8efc0c15 | 222 | extern char *optarg; |
223 | extern int optind; | |
224 | ||
fd6168c1 | 225 | /* Ensure that fds 0, 1 and 2 are open or directed to /dev/null */ |
226 | sanitise_stdfd(); | |
227 | ||
fda04d7d | 228 | __progname = ssh_get_progname(argv[0]); |
260d427b | 229 | |
94ec8c6b | 230 | args.list = NULL; |
7203d6bb | 231 | addargs(&args, "ssh"); /* overwritten with ssh_program */ |
8a624ebf | 232 | addargs(&args, "-x"); |
3a222388 | 233 | addargs(&args, "-oForwardAgent no"); |
e1c5bfaf | 234 | addargs(&args, "-oClearAllForwardings yes"); |
94ec8c6b | 235 | |
8efc0c15 | 236 | fflag = tflag = 0; |
e6b15f23 | 237 | while ((ch = getopt(argc, argv, "dfl:prtvBCc:i:P:q1246S:o:F:")) != -1) |
5260325f | 238 | switch (ch) { |
239 | /* User-visible flags. */ | |
e6b15f23 | 240 | case '1': |
241 | case '2': | |
48e671d5 | 242 | case '4': |
48e671d5 | 243 | case '6': |
94ec8c6b | 244 | case 'C': |
8a624ebf | 245 | addargs(&args, "-%c", ch); |
48e671d5 | 246 | break; |
94ec8c6b | 247 | case 'o': |
248 | case 'c': | |
249 | case 'i': | |
f1278af7 | 250 | case 'F': |
8a624ebf | 251 | addargs(&args, "-%c%s", ch, optarg); |
8efc0c15 | 252 | break; |
253 | case 'P': | |
8a624ebf | 254 | addargs(&args, "-p%s", optarg); |
94ec8c6b | 255 | break; |
256 | case 'B': | |
8a624ebf | 257 | addargs(&args, "-oBatchmode yes"); |
94ec8c6b | 258 | break; |
6ea3c52a | 259 | case 'l': |
260 | speed = strtod(optarg, &endp); | |
261 | if (speed <= 0 || *endp != '\0') | |
262 | usage(); | |
10adbb52 | 263 | limit_rate = speed * 1024; |
6ea3c52a | 264 | break; |
94ec8c6b | 265 | case 'p': |
266 | pflag = 1; | |
5260325f | 267 | break; |
8efc0c15 | 268 | case 'r': |
269 | iamrecursive = 1; | |
270 | break; | |
2e73a022 | 271 | case 'S': |
94ec8c6b | 272 | ssh_program = xstrdup(optarg); |
273 | break; | |
274 | case 'v': | |
4fc334a2 | 275 | addargs(&args, "-v"); |
94ec8c6b | 276 | verbose_mode = 1; |
277 | break; | |
278 | case 'q': | |
15c8e3fd | 279 | addargs(&args, "-q"); |
94ec8c6b | 280 | showprogress = 0; |
2e73a022 | 281 | break; |
282 | ||
5260325f | 283 | /* Server options. */ |
8efc0c15 | 284 | case 'd': |
285 | targetshouldbedirectory = 1; | |
286 | break; | |
5260325f | 287 | case 'f': /* "from" */ |
8efc0c15 | 288 | iamremote = 1; |
289 | fflag = 1; | |
290 | break; | |
5260325f | 291 | case 't': /* "to" */ |
8efc0c15 | 292 | iamremote = 1; |
293 | tflag = 1; | |
fe56c12b | 294 | #ifdef HAVE_CYGWIN |
295 | setmode(0, O_BINARY); | |
296 | #endif | |
8efc0c15 | 297 | break; |
8efc0c15 | 298 | default: |
299 | usage(); | |
300 | } | |
301 | argc -= optind; | |
302 | argv += optind; | |
303 | ||
304 | if ((pwd = getpwuid(userid = getuid())) == NULL) | |
261bd618 | 305 | fatal("unknown user %u", (u_int) userid); |
8efc0c15 | 306 | |
5260325f | 307 | if (!isatty(STDERR_FILENO)) |
8efc0c15 | 308 | showprogress = 0; |
309 | ||
310 | remin = STDIN_FILENO; | |
311 | remout = STDOUT_FILENO; | |
312 | ||
2b87da3b | 313 | if (fflag) { |
5260325f | 314 | /* Follow "protocol", send data. */ |
315 | (void) response(); | |
8efc0c15 | 316 | source(argc, argv); |
317 | exit(errs != 0); | |
318 | } | |
5260325f | 319 | if (tflag) { |
320 | /* Receive data. */ | |
8efc0c15 | 321 | sink(argc, argv); |
322 | exit(errs != 0); | |
323 | } | |
8efc0c15 | 324 | if (argc < 2) |
325 | usage(); | |
326 | if (argc > 2) | |
327 | targetshouldbedirectory = 1; | |
328 | ||
329 | remin = remout = -1; | |
252d1a24 | 330 | do_cmd_pid = -1; |
8efc0c15 | 331 | /* Command to be executed on remote system using "ssh". */ |
0ed28836 | 332 | (void) snprintf(cmd, sizeof cmd, "scp%s%s%s%s", |
333 | verbose_mode ? " -v" : "", | |
2e73a022 | 334 | iamrecursive ? " -r" : "", pflag ? " -p" : "", |
335 | targetshouldbedirectory ? " -d" : ""); | |
8efc0c15 | 336 | |
5260325f | 337 | (void) signal(SIGPIPE, lostconn); |
8efc0c15 | 338 | |
339 | if ((targ = colon(argv[argc - 1]))) /* Dest is remote host. */ | |
340 | toremote(targ, argc, argv); | |
341 | else { | |
5260325f | 342 | tolocal(argc, argv); /* Dest is local host. */ |
8efc0c15 | 343 | if (targetshouldbedirectory) |
344 | verifydir(argv[argc - 1]); | |
345 | } | |
252d1a24 | 346 | /* |
347 | * Finally check the exit status of the ssh process, if one was forked | |
348 | * and no error has occured yet | |
349 | */ | |
350 | if (do_cmd_pid != -1 && errs == 0) { | |
351 | if (remin != -1) | |
352 | (void) close(remin); | |
353 | if (remout != -1) | |
354 | (void) close(remout); | |
355 | if (waitpid(do_cmd_pid, &status, 0) == -1) | |
356 | errs = 1; | |
357 | else { | |
358 | if (!WIFEXITED(status) || WEXITSTATUS(status) != 0) | |
359 | errs = 1; | |
360 | } | |
361 | } | |
8efc0c15 | 362 | exit(errs != 0); |
363 | } | |
364 | ||
365 | void | |
cf3248b8 | 366 | toremote(char *targ, int argc, char **argv) |
8efc0c15 | 367 | { |
368 | int i, len; | |
99dfaccc | 369 | char *bp, *host, *src, *suser, *thost, *tuser, *arg; |
8efc0c15 | 370 | |
371 | *targ++ = 0; | |
372 | if (*targ == 0) | |
373 | targ = "."; | |
374 | ||
ae0d2f42 | 375 | arg = xstrdup(argv[argc - 1]); |
99dfaccc | 376 | if ((thost = strrchr(arg, '@'))) { |
8efc0c15 | 377 | /* user@host */ |
378 | *thost++ = 0; | |
99dfaccc | 379 | tuser = arg; |
8efc0c15 | 380 | if (*tuser == '\0') |
381 | tuser = NULL; | |
8efc0c15 | 382 | } else { |
99dfaccc | 383 | thost = arg; |
8efc0c15 | 384 | tuser = NULL; |
385 | } | |
386 | ||
387 | for (i = 0; i < argc - 1; i++) { | |
388 | src = colon(argv[i]); | |
5260325f | 389 | if (src) { /* remote to remote */ |
e1c5bfaf | 390 | static char *ssh_options = |
61eb812e | 391 | "-x -o'ClearAllForwardings yes'"; |
8efc0c15 | 392 | *src++ = 0; |
393 | if (*src == 0) | |
394 | src = "."; | |
15748b4d | 395 | host = strrchr(argv[i], '@'); |
2e73a022 | 396 | len = strlen(ssh_program) + strlen(argv[i]) + |
397 | strlen(src) + (tuser ? strlen(tuser) : 0) + | |
e1c5bfaf | 398 | strlen(thost) + strlen(targ) + |
399 | strlen(ssh_options) + CMDNEEDS + 20; | |
5260325f | 400 | bp = xmalloc(len); |
8efc0c15 | 401 | if (host) { |
402 | *host++ = 0; | |
48e671d5 | 403 | host = cleanhostname(host); |
8efc0c15 | 404 | suser = argv[i]; |
405 | if (*suser == '\0') | |
406 | suser = pwd->pw_name; | |
3e2f2431 | 407 | else if (!okname(suser)) { |
408 | xfree(bp); | |
8efc0c15 | 409 | continue; |
3e2f2431 | 410 | } |
411 | if (tuser && !okname(tuser)) { | |
412 | xfree(bp); | |
0ec7661a | 413 | continue; |
3e2f2431 | 414 | } |
0ed28836 | 415 | snprintf(bp, len, |
e1c5bfaf | 416 | "%s%s %s -n " |
0ed28836 | 417 | "-l %s %s %s %s '%s%s%s:%s'", |
71c0d06a | 418 | ssh_program, verbose_mode ? " -v" : "", |
e1c5bfaf | 419 | ssh_options, suser, host, cmd, src, |
71c0d06a | 420 | tuser ? tuser : "", tuser ? "@" : "", |
421 | thost, targ); | |
48e671d5 | 422 | } else { |
423 | host = cleanhostname(argv[i]); | |
0ed28836 | 424 | snprintf(bp, len, |
e1c5bfaf | 425 | "exec %s%s %s -n %s " |
0ed28836 | 426 | "%s %s '%s%s%s:%s'", |
71c0d06a | 427 | ssh_program, verbose_mode ? " -v" : "", |
e1c5bfaf | 428 | ssh_options, host, cmd, src, |
71c0d06a | 429 | tuser ? tuser : "", tuser ? "@" : "", |
430 | thost, targ); | |
48e671d5 | 431 | } |
5260325f | 432 | if (verbose_mode) |
433 | fprintf(stderr, "Executing: %s\n", bp); | |
815a8407 | 434 | if (system(bp) != 0) |
435 | errs = 1; | |
5260325f | 436 | (void) xfree(bp); |
437 | } else { /* local to remote */ | |
8efc0c15 | 438 | if (remin == -1) { |
439 | len = strlen(targ) + CMDNEEDS + 20; | |
5260325f | 440 | bp = xmalloc(len); |
0ed28836 | 441 | (void) snprintf(bp, len, "%s -t %s", cmd, targ); |
48e671d5 | 442 | host = cleanhostname(thost); |
2e73a022 | 443 | if (do_cmd(host, tuser, bp, &remin, |
444 | &remout, argc) < 0) | |
5260325f | 445 | exit(1); |
8efc0c15 | 446 | if (response() < 0) |
447 | exit(1); | |
5260325f | 448 | (void) xfree(bp); |
8efc0c15 | 449 | } |
5260325f | 450 | source(1, argv + i); |
8efc0c15 | 451 | } |
452 | } | |
453 | } | |
454 | ||
455 | void | |
cf3248b8 | 456 | tolocal(int argc, char **argv) |
8efc0c15 | 457 | { |
458 | int i, len; | |
459 | char *bp, *host, *src, *suser; | |
460 | ||
461 | for (i = 0; i < argc - 1; i++) { | |
5260325f | 462 | if (!(src = colon(argv[i]))) { /* Local to local. */ |
8efc0c15 | 463 | len = strlen(_PATH_CP) + strlen(argv[i]) + |
2e73a022 | 464 | strlen(argv[argc - 1]) + 20; |
8efc0c15 | 465 | bp = xmalloc(len); |
0ed28836 | 466 | (void) snprintf(bp, len, "exec %s%s%s %s %s", _PATH_CP, |
2e73a022 | 467 | iamrecursive ? " -r" : "", pflag ? " -p" : "", |
468 | argv[i], argv[argc - 1]); | |
5260325f | 469 | if (verbose_mode) |
470 | fprintf(stderr, "Executing: %s\n", bp); | |
8efc0c15 | 471 | if (system(bp)) |
472 | ++errs; | |
5260325f | 473 | (void) xfree(bp); |
8efc0c15 | 474 | continue; |
475 | } | |
476 | *src++ = 0; | |
477 | if (*src == 0) | |
478 | src = "."; | |
15748b4d | 479 | if ((host = strrchr(argv[i], '@')) == NULL) { |
8efc0c15 | 480 | host = argv[i]; |
481 | suser = NULL; | |
482 | } else { | |
483 | *host++ = 0; | |
484 | suser = argv[i]; | |
485 | if (*suser == '\0') | |
486 | suser = pwd->pw_name; | |
8efc0c15 | 487 | } |
48e671d5 | 488 | host = cleanhostname(host); |
8efc0c15 | 489 | len = strlen(src) + CMDNEEDS + 20; |
5260325f | 490 | bp = xmalloc(len); |
0ed28836 | 491 | (void) snprintf(bp, len, "%s -f %s", cmd, src); |
2e73a022 | 492 | if (do_cmd(host, suser, bp, &remin, &remout, argc) < 0) { |
5260325f | 493 | (void) xfree(bp); |
494 | ++errs; | |
495 | continue; | |
8efc0c15 | 496 | } |
5260325f | 497 | xfree(bp); |
8efc0c15 | 498 | sink(1, argv + argc - 1); |
5260325f | 499 | (void) close(remin); |
8efc0c15 | 500 | remin = remout = -1; |
501 | } | |
502 | } | |
503 | ||
504 | void | |
cf3248b8 | 505 | source(int argc, char **argv) |
8efc0c15 | 506 | { |
507 | struct stat stb; | |
508 | static BUF buffer; | |
509 | BUF *bp; | |
05624c18 | 510 | off_t i, amt, statbytes; |
511 | size_t result; | |
a056dfa2 | 512 | int fd = -1, haderr, indx; |
8efc0c15 | 513 | char *last, *name, buf[2048]; |
0fc791ba | 514 | int len; |
8efc0c15 | 515 | |
516 | for (indx = 0; indx < argc; ++indx) { | |
5260325f | 517 | name = argv[indx]; |
8efc0c15 | 518 | statbytes = 0; |
0fc791ba | 519 | len = strlen(name); |
520 | while (len > 1 && name[len-1] == '/') | |
521 | name[--len] = '\0'; | |
5720c10e | 522 | if (strchr(name, '\n') != NULL) { |
523 | run_err("%s: skipping, filename contains a newline", | |
524 | name); | |
525 | goto next; | |
526 | } | |
8efc0c15 | 527 | if ((fd = open(name, O_RDONLY, 0)) < 0) |
528 | goto syserr; | |
529 | if (fstat(fd, &stb) < 0) { | |
530 | syserr: run_err("%s: %s", name, strerror(errno)); | |
531 | goto next; | |
532 | } | |
533 | switch (stb.st_mode & S_IFMT) { | |
534 | case S_IFREG: | |
535 | break; | |
536 | case S_IFDIR: | |
537 | if (iamrecursive) { | |
538 | rsource(name, &stb); | |
539 | goto next; | |
540 | } | |
541 | /* FALLTHROUGH */ | |
542 | default: | |
543 | run_err("%s: not a regular file", name); | |
544 | goto next; | |
545 | } | |
546 | if ((last = strrchr(name, '/')) == NULL) | |
547 | last = name; | |
548 | else | |
549 | ++last; | |
550 | curfile = last; | |
551 | if (pflag) { | |
552 | /* | |
553 | * Make it compatible with possible future | |
554 | * versions expecting microseconds. | |
555 | */ | |
0ed28836 | 556 | (void) snprintf(buf, sizeof buf, "T%lu 0 %lu 0\n", |
1e3b8b07 | 557 | (u_long) stb.st_mtime, |
558 | (u_long) stb.st_atime); | |
dc54438a | 559 | (void) atomicio(vwrite, remout, buf, strlen(buf)); |
8efc0c15 | 560 | if (response() < 0) |
561 | goto next; | |
562 | } | |
563 | #define FILEMODEMASK (S_ISUID|S_ISGID|S_IRWXU|S_IRWXG|S_IRWXO) | |
bf1d27bd | 564 | snprintf(buf, sizeof buf, "C%04o %lld %s\n", |
1e3b8b07 | 565 | (u_int) (stb.st_mode & FILEMODEMASK), |
ded9dd18 | 566 | (int64_t)stb.st_size, last); |
5260325f | 567 | if (verbose_mode) { |
568 | fprintf(stderr, "Sending file modes: %s", buf); | |
5260325f | 569 | } |
dc54438a | 570 | (void) atomicio(vwrite, remout, buf, strlen(buf)); |
8efc0c15 | 571 | if (response() < 0) |
572 | goto next; | |
573 | if ((bp = allocbuf(&buffer, fd, 2048)) == NULL) { | |
5260325f | 574 | next: (void) close(fd); |
8efc0c15 | 575 | continue; |
576 | } | |
b65c3807 | 577 | if (showprogress) |
578 | start_progress_meter(curfile, stb.st_size, &statbytes); | |
8efc0c15 | 579 | /* Keep writing after an error so that we stay sync'd up. */ |
580 | for (haderr = i = 0; i < stb.st_size; i += bp->cnt) { | |
581 | amt = bp->cnt; | |
582 | if (i + amt > stb.st_size) | |
583 | amt = stb.st_size - i; | |
584 | if (!haderr) { | |
1d1ffb87 | 585 | result = atomicio(read, fd, bp->buf, amt); |
8efc0c15 | 586 | if (result != amt) |
05624c18 | 587 | haderr = errno; |
8efc0c15 | 588 | } |
589 | if (haderr) | |
dc54438a | 590 | (void) atomicio(vwrite, remout, bp->buf, amt); |
8efc0c15 | 591 | else { |
dc54438a | 592 | result = atomicio(vwrite, remout, bp->buf, amt); |
8efc0c15 | 593 | if (result != amt) |
05624c18 | 594 | haderr = errno; |
8efc0c15 | 595 | statbytes += result; |
596 | } | |
10adbb52 | 597 | if (limit_rate) |
6ea3c52a | 598 | bwlimit(amt); |
8efc0c15 | 599 | } |
5260325f | 600 | if (showprogress) |
b65c3807 | 601 | stop_progress_meter(); |
8efc0c15 | 602 | |
603 | if (close(fd) < 0 && !haderr) | |
604 | haderr = errno; | |
605 | if (!haderr) | |
dc54438a | 606 | (void) atomicio(vwrite, remout, "", 1); |
8efc0c15 | 607 | else |
608 | run_err("%s: %s", name, strerror(haderr)); | |
5260325f | 609 | (void) response(); |
8efc0c15 | 610 | } |
611 | } | |
612 | ||
613 | void | |
cf3248b8 | 614 | rsource(char *name, struct stat *statp) |
8efc0c15 | 615 | { |
616 | DIR *dirp; | |
617 | struct dirent *dp; | |
618 | char *last, *vect[1], path[1100]; | |
619 | ||
620 | if (!(dirp = opendir(name))) { | |
621 | run_err("%s: %s", name, strerror(errno)); | |
622 | return; | |
623 | } | |
624 | last = strrchr(name, '/'); | |
625 | if (last == 0) | |
626 | last = name; | |
627 | else | |
628 | last++; | |
629 | if (pflag) { | |
0ed28836 | 630 | (void) snprintf(path, sizeof(path), "T%lu 0 %lu 0\n", |
1e3b8b07 | 631 | (u_long) statp->st_mtime, |
632 | (u_long) statp->st_atime); | |
dc54438a | 633 | (void) atomicio(vwrite, remout, path, strlen(path)); |
8efc0c15 | 634 | if (response() < 0) { |
635 | closedir(dirp); | |
636 | return; | |
637 | } | |
638 | } | |
0ed28836 | 639 | (void) snprintf(path, sizeof path, "D%04o %d %.1024s\n", |
1e3b8b07 | 640 | (u_int) (statp->st_mode & FILEMODEMASK), 0, last); |
5260325f | 641 | if (verbose_mode) |
642 | fprintf(stderr, "Entering directory: %s", path); | |
dc54438a | 643 | (void) atomicio(vwrite, remout, path, strlen(path)); |
8efc0c15 | 644 | if (response() < 0) { |
645 | closedir(dirp); | |
646 | return; | |
647 | } | |
e5ff6ecf | 648 | while ((dp = readdir(dirp)) != NULL) { |
8efc0c15 | 649 | if (dp->d_ino == 0) |
650 | continue; | |
651 | if (!strcmp(dp->d_name, ".") || !strcmp(dp->d_name, "..")) | |
652 | continue; | |
653 | if (strlen(name) + 1 + strlen(dp->d_name) >= sizeof(path) - 1) { | |
654 | run_err("%s/%s: name too long", name, dp->d_name); | |
655 | continue; | |
656 | } | |
0ed28836 | 657 | (void) snprintf(path, sizeof path, "%s/%s", name, dp->d_name); |
8efc0c15 | 658 | vect[0] = path; |
659 | source(1, vect); | |
660 | } | |
5260325f | 661 | (void) closedir(dirp); |
dc54438a | 662 | (void) atomicio(vwrite, remout, "E\n", 2); |
5260325f | 663 | (void) response(); |
8efc0c15 | 664 | } |
665 | ||
6ea3c52a | 666 | void |
667 | bwlimit(int amount) | |
668 | { | |
669 | static struct timeval bwstart, bwend; | |
670 | static int lamt, thresh = 16384; | |
ca75d7de | 671 | u_int64_t waitlen; |
6ea3c52a | 672 | struct timespec ts, rm; |
673 | ||
674 | if (!timerisset(&bwstart)) { | |
675 | gettimeofday(&bwstart, NULL); | |
676 | return; | |
677 | } | |
678 | ||
679 | lamt += amount; | |
680 | if (lamt < thresh) | |
681 | return; | |
682 | ||
683 | gettimeofday(&bwend, NULL); | |
684 | timersub(&bwend, &bwstart, &bwend); | |
685 | if (!timerisset(&bwend)) | |
686 | return; | |
687 | ||
688 | lamt *= 8; | |
ca75d7de | 689 | waitlen = (double)1000000L * lamt / limit_rate; |
6ea3c52a | 690 | |
ca75d7de | 691 | bwstart.tv_sec = waitlen / 1000000L; |
692 | bwstart.tv_usec = waitlen % 1000000L; | |
6ea3c52a | 693 | |
694 | if (timercmp(&bwstart, &bwend, >)) { | |
695 | timersub(&bwstart, &bwend, &bwend); | |
696 | ||
697 | /* Adjust the wait time */ | |
698 | if (bwend.tv_sec) { | |
699 | thresh /= 2; | |
700 | if (thresh < 2048) | |
701 | thresh = 2048; | |
702 | } else if (bwend.tv_usec < 100) { | |
703 | thresh *= 2; | |
704 | if (thresh > 32768) | |
705 | thresh = 32768; | |
706 | } | |
707 | ||
708 | TIMEVAL_TO_TIMESPEC(&bwend, &ts); | |
709 | while (nanosleep(&ts, &rm) == -1) { | |
710 | if (errno != EINTR) | |
711 | break; | |
712 | ts = rm; | |
713 | } | |
714 | } | |
715 | ||
716 | lamt = 0; | |
717 | gettimeofday(&bwstart, NULL); | |
718 | } | |
719 | ||
8efc0c15 | 720 | void |
cf3248b8 | 721 | sink(int argc, char **argv) |
8efc0c15 | 722 | { |
723 | static BUF buffer; | |
724 | struct stat stb; | |
5260325f | 725 | enum { |
726 | YES, NO, DISPLAYED | |
727 | } wrerr; | |
8efc0c15 | 728 | BUF *bp; |
05624c18 | 729 | off_t i; |
2ceb8101 | 730 | size_t j, count; |
731 | int amt, exists, first, mask, mode, ofd, omode; | |
b65c3807 | 732 | off_t size, statbytes; |
14a9a859 | 733 | int setimes, targisdir, wrerrno = 0; |
8efc0c15 | 734 | char ch, *cp, *np, *targ, *why, *vect[1], buf[2048]; |
188adeb2 | 735 | struct timeval tv[2]; |
8efc0c15 | 736 | |
36967a16 | 737 | #define atime tv[0] |
738 | #define mtime tv[1] | |
007607ab | 739 | #define SCREWUP(str) { why = str; goto screwup; } |
8efc0c15 | 740 | |
741 | setimes = targisdir = 0; | |
742 | mask = umask(0); | |
743 | if (!pflag) | |
5260325f | 744 | (void) umask(mask); |
8efc0c15 | 745 | if (argc != 1) { |
746 | run_err("ambiguous target"); | |
747 | exit(1); | |
748 | } | |
749 | targ = *argv; | |
750 | if (targetshouldbedirectory) | |
751 | verifydir(targ); | |
5260325f | 752 | |
dc54438a | 753 | (void) atomicio(vwrite, remout, "", 1); |
8efc0c15 | 754 | if (stat(targ, &stb) == 0 && S_ISDIR(stb.st_mode)) |
755 | targisdir = 1; | |
756 | for (first = 1;; first = 0) { | |
757 | cp = buf; | |
05624c18 | 758 | if (atomicio(read, remin, cp, 1) != 1) |
8efc0c15 | 759 | return; |
760 | if (*cp++ == '\n') | |
761 | SCREWUP("unexpected <newline>"); | |
762 | do { | |
1d1ffb87 | 763 | if (atomicio(read, remin, &ch, sizeof(ch)) != sizeof(ch)) |
8efc0c15 | 764 | SCREWUP("lost connection"); |
765 | *cp++ = ch; | |
766 | } while (cp < &buf[sizeof(buf) - 1] && ch != '\n'); | |
767 | *cp = 0; | |
f09aa22c | 768 | if (verbose_mode) |
769 | fprintf(stderr, "Sink: %s", buf); | |
8efc0c15 | 770 | |
771 | if (buf[0] == '\01' || buf[0] == '\02') { | |
772 | if (iamremote == 0) | |
dc54438a | 773 | (void) atomicio(vwrite, STDERR_FILENO, |
71c0d06a | 774 | buf + 1, strlen(buf + 1)); |
8efc0c15 | 775 | if (buf[0] == '\02') |
776 | exit(1); | |
777 | ++errs; | |
778 | continue; | |
779 | } | |
780 | if (buf[0] == 'E') { | |
dc54438a | 781 | (void) atomicio(vwrite, remout, "", 1); |
8efc0c15 | 782 | return; |
783 | } | |
8efc0c15 | 784 | if (ch == '\n') |
785 | *--cp = 0; | |
786 | ||
8efc0c15 | 787 | cp = buf; |
788 | if (*cp == 'T') { | |
789 | setimes++; | |
790 | cp++; | |
36967a16 | 791 | mtime.tv_sec = strtol(cp, &cp, 10); |
792 | if (!cp || *cp++ != ' ') | |
8efc0c15 | 793 | SCREWUP("mtime.sec not delimited"); |
36967a16 | 794 | mtime.tv_usec = strtol(cp, &cp, 10); |
795 | if (!cp || *cp++ != ' ') | |
8efc0c15 | 796 | SCREWUP("mtime.usec not delimited"); |
36967a16 | 797 | atime.tv_sec = strtol(cp, &cp, 10); |
798 | if (!cp || *cp++ != ' ') | |
8efc0c15 | 799 | SCREWUP("atime.sec not delimited"); |
36967a16 | 800 | atime.tv_usec = strtol(cp, &cp, 10); |
801 | if (!cp || *cp++ != '\0') | |
8efc0c15 | 802 | SCREWUP("atime.usec not delimited"); |
dc54438a | 803 | (void) atomicio(vwrite, remout, "", 1); |
8efc0c15 | 804 | continue; |
805 | } | |
806 | if (*cp != 'C' && *cp != 'D') { | |
807 | /* | |
808 | * Check for the case "rcp remote:foo\* local:bar". | |
809 | * In this case, the line "No match." can be returned | |
810 | * by the shell before the rcp command on the remote is | |
811 | * executed so the ^Aerror_message convention isn't | |
812 | * followed. | |
813 | */ | |
814 | if (first) { | |
815 | run_err("%s", cp); | |
816 | exit(1); | |
817 | } | |
818 | SCREWUP("expected control record"); | |
819 | } | |
820 | mode = 0; | |
821 | for (++cp; cp < buf + 5; cp++) { | |
822 | if (*cp < '0' || *cp > '7') | |
823 | SCREWUP("bad mode"); | |
824 | mode = (mode << 3) | (*cp - '0'); | |
825 | } | |
826 | if (*cp++ != ' ') | |
827 | SCREWUP("mode not delimited"); | |
828 | ||
e5ff6ecf | 829 | for (size = 0; isdigit(*cp);) |
8efc0c15 | 830 | size = size * 10 + (*cp++ - '0'); |
831 | if (*cp++ != ' ') | |
832 | SCREWUP("size not delimited"); | |
f09aa22c | 833 | if ((strchr(cp, '/') != NULL) || (strcmp(cp, "..") == 0)) { |
834 | run_err("error: unexpected filename: %s", cp); | |
835 | exit(1); | |
836 | } | |
8efc0c15 | 837 | if (targisdir) { |
838 | static char *namebuf; | |
2ceb8101 | 839 | static size_t cursize; |
8efc0c15 | 840 | size_t need; |
841 | ||
842 | need = strlen(targ) + strlen(cp) + 250; | |
0ed28836 | 843 | if (need > cursize) { |
844 | if (namebuf) | |
845 | xfree(namebuf); | |
5260325f | 846 | namebuf = xmalloc(need); |
0ed28836 | 847 | cursize = need; |
848 | } | |
849 | (void) snprintf(namebuf, need, "%s%s%s", targ, | |
39f9599a | 850 | strcmp(targ, "/") ? "/" : "", cp); |
8efc0c15 | 851 | np = namebuf; |
852 | } else | |
853 | np = targ; | |
854 | curfile = cp; | |
855 | exists = stat(np, &stb) == 0; | |
856 | if (buf[0] == 'D') { | |
857 | int mod_flag = pflag; | |
f09aa22c | 858 | if (!iamrecursive) |
859 | SCREWUP("received directory without -r"); | |
8efc0c15 | 860 | if (exists) { |
861 | if (!S_ISDIR(stb.st_mode)) { | |
862 | errno = ENOTDIR; | |
863 | goto bad; | |
864 | } | |
865 | if (pflag) | |
5260325f | 866 | (void) chmod(np, mode); |
8efc0c15 | 867 | } else { |
5260325f | 868 | /* Handle copying from a read-only |
869 | directory */ | |
8efc0c15 | 870 | mod_flag = 1; |
871 | if (mkdir(np, mode | S_IRWXU) < 0) | |
872 | goto bad; | |
873 | } | |
5c470997 | 874 | vect[0] = xstrdup(np); |
8efc0c15 | 875 | sink(1, vect); |
876 | if (setimes) { | |
877 | setimes = 0; | |
e68225b2 | 878 | if (utimes(vect[0], tv) < 0) |
5260325f | 879 | run_err("%s: set times: %s", |
e68225b2 | 880 | vect[0], strerror(errno)); |
8efc0c15 | 881 | } |
882 | if (mod_flag) | |
e68225b2 | 883 | (void) chmod(vect[0], mode); |
884 | if (vect[0]) | |
885 | xfree(vect[0]); | |
8efc0c15 | 886 | continue; |
887 | } | |
888 | omode = mode; | |
889 | mode |= S_IWRITE; | |
3e4fc5f9 | 890 | if ((ofd = open(np, O_WRONLY|O_CREAT, mode)) < 0) { |
8efc0c15 | 891 | bad: run_err("%s: %s", np, strerror(errno)); |
892 | continue; | |
893 | } | |
dc54438a | 894 | (void) atomicio(vwrite, remout, "", 1); |
8efc0c15 | 895 | if ((bp = allocbuf(&buffer, ofd, 4096)) == NULL) { |
5260325f | 896 | (void) close(ofd); |
8efc0c15 | 897 | continue; |
898 | } | |
899 | cp = bp->buf; | |
900 | wrerr = NO; | |
901 | ||
8efc0c15 | 902 | statbytes = 0; |
b65c3807 | 903 | if (showprogress) |
904 | start_progress_meter(curfile, size, &statbytes); | |
8efc0c15 | 905 | for (count = i = 0; i < size; i += 4096) { |
906 | amt = 4096; | |
907 | if (i + amt > size) | |
908 | amt = size - i; | |
909 | count += amt; | |
910 | do { | |
f581b6e8 | 911 | j = atomicio(read, remin, cp, amt); |
05624c18 | 912 | if (j == 0) { |
8efc0c15 | 913 | run_err("%s", j ? strerror(errno) : |
e5ff6ecf | 914 | "dropped connection"); |
8efc0c15 | 915 | exit(1); |
916 | } | |
917 | amt -= j; | |
918 | cp += j; | |
5260325f | 919 | statbytes += j; |
8efc0c15 | 920 | } while (amt > 0); |
b6453d99 | 921 | |
10adbb52 | 922 | if (limit_rate) |
6ea3c52a | 923 | bwlimit(4096); |
924 | ||
8efc0c15 | 925 | if (count == bp->cnt) { |
926 | /* Keep reading so we stay sync'd up. */ | |
927 | if (wrerr == NO) { | |
05624c18 | 928 | if (atomicio(vwrite, ofd, bp->buf, |
929 | count) != count) { | |
8efc0c15 | 930 | wrerr = YES; |
05624c18 | 931 | wrerrno = errno; |
8efc0c15 | 932 | } |
933 | } | |
934 | count = 0; | |
935 | cp = bp->buf; | |
936 | } | |
937 | } | |
938 | if (showprogress) | |
b65c3807 | 939 | stop_progress_meter(); |
8efc0c15 | 940 | if (count != 0 && wrerr == NO && |
05624c18 | 941 | atomicio(vwrite, ofd, bp->buf, count) != count) { |
8efc0c15 | 942 | wrerr = YES; |
05624c18 | 943 | wrerrno = errno; |
8efc0c15 | 944 | } |
25a6efd8 | 945 | if (wrerr == NO && ftruncate(ofd, size) != 0) { |
8efc0c15 | 946 | run_err("%s: truncate: %s", np, strerror(errno)); |
947 | wrerr = DISPLAYED; | |
948 | } | |
8efc0c15 | 949 | if (pflag) { |
950 | if (exists || omode != mode) | |
77bb0bca | 951 | #ifdef HAVE_FCHMOD |
7e693c81 | 952 | if (fchmod(ofd, omode)) { |
77bb0bca | 953 | #else /* HAVE_FCHMOD */ |
7e693c81 | 954 | if (chmod(np, omode)) { |
77bb0bca | 955 | #endif /* HAVE_FCHMOD */ |
8efc0c15 | 956 | run_err("%s: set mode: %s", |
e5ff6ecf | 957 | np, strerror(errno)); |
7e693c81 | 958 | wrerr = DISPLAYED; |
959 | } | |
8efc0c15 | 960 | } else { |
961 | if (!exists && omode != mode) | |
77bb0bca | 962 | #ifdef HAVE_FCHMOD |
7e693c81 | 963 | if (fchmod(ofd, omode & ~mask)) { |
77bb0bca | 964 | #else /* HAVE_FCHMOD */ |
7e693c81 | 965 | if (chmod(np, omode & ~mask)) { |
77bb0bca | 966 | #endif /* HAVE_FCHMOD */ |
8efc0c15 | 967 | run_err("%s: set mode: %s", |
e5ff6ecf | 968 | np, strerror(errno)); |
7e693c81 | 969 | wrerr = DISPLAYED; |
970 | } | |
8efc0c15 | 971 | } |
704b1659 | 972 | if (close(ofd) == -1) { |
973 | wrerr = YES; | |
974 | wrerrno = errno; | |
975 | } | |
5260325f | 976 | (void) response(); |
8efc0c15 | 977 | if (setimes && wrerr == NO) { |
978 | setimes = 0; | |
188adeb2 | 979 | if (utimes(np, tv) < 0) { |
8efc0c15 | 980 | run_err("%s: set times: %s", |
e5ff6ecf | 981 | np, strerror(errno)); |
8efc0c15 | 982 | wrerr = DISPLAYED; |
983 | } | |
984 | } | |
5260325f | 985 | switch (wrerr) { |
8efc0c15 | 986 | case YES: |
987 | run_err("%s: %s", np, strerror(wrerrno)); | |
988 | break; | |
989 | case NO: | |
dc54438a | 990 | (void) atomicio(vwrite, remout, "", 1); |
8efc0c15 | 991 | break; |
992 | case DISPLAYED: | |
993 | break; | |
994 | } | |
995 | } | |
996 | screwup: | |
997 | run_err("protocol error: %s", why); | |
998 | exit(1); | |
999 | } | |
1000 | ||
1001 | int | |
d5bb9418 | 1002 | response(void) |
8efc0c15 | 1003 | { |
1004 | char ch, *cp, resp, rbuf[2048]; | |
1005 | ||
1d1ffb87 | 1006 | if (atomicio(read, remin, &resp, sizeof(resp)) != sizeof(resp)) |
8efc0c15 | 1007 | lostconn(0); |
1008 | ||
1009 | cp = rbuf; | |
5260325f | 1010 | switch (resp) { |
1011 | case 0: /* ok */ | |
8efc0c15 | 1012 | return (0); |
1013 | default: | |
1014 | *cp++ = resp; | |
1015 | /* FALLTHROUGH */ | |
5260325f | 1016 | case 1: /* error, followed by error msg */ |
1017 | case 2: /* fatal error, "" */ | |
8efc0c15 | 1018 | do { |
1d1ffb87 | 1019 | if (atomicio(read, remin, &ch, sizeof(ch)) != sizeof(ch)) |
8efc0c15 | 1020 | lostconn(0); |
1021 | *cp++ = ch; | |
1022 | } while (cp < &rbuf[sizeof(rbuf) - 1] && ch != '\n'); | |
1023 | ||
1024 | if (!iamremote) | |
dc54438a | 1025 | (void) atomicio(vwrite, STDERR_FILENO, rbuf, cp - rbuf); |
8efc0c15 | 1026 | ++errs; |
1027 | if (resp == 1) | |
1028 | return (-1); | |
1029 | exit(1); | |
1030 | } | |
1031 | /* NOTREACHED */ | |
1032 | } | |
1033 | ||
1034 | void | |
d5bb9418 | 1035 | usage(void) |
8efc0c15 | 1036 | { |
f1278af7 | 1037 | (void) fprintf(stderr, |
433e60ac | 1038 | "usage: scp [-1246BCpqrv] [-c cipher] [-F ssh_config] [-i identity_file]\n" |
1039 | " [-l limit] [-o ssh_option] [-P port] [-S program]\n" | |
3015d321 | 1040 | " [[user@]host1:]file1 [...] [[user@]host2:]file2\n"); |
8efc0c15 | 1041 | exit(1); |
1042 | } | |
1043 | ||
1044 | void | |
5260325f | 1045 | run_err(const char *fmt,...) |
8efc0c15 | 1046 | { |
1047 | static FILE *fp; | |
1048 | va_list ap; | |
8efc0c15 | 1049 | |
1050 | ++errs; | |
1051 | if (fp == NULL && !(fp = fdopen(remout, "w"))) | |
1052 | return; | |
5260325f | 1053 | (void) fprintf(fp, "%c", 0x01); |
1054 | (void) fprintf(fp, "scp: "); | |
b92964b7 | 1055 | va_start(ap, fmt); |
5260325f | 1056 | (void) vfprintf(fp, fmt, ap); |
b92964b7 | 1057 | va_end(ap); |
5260325f | 1058 | (void) fprintf(fp, "\n"); |
1059 | (void) fflush(fp); | |
1060 | ||
1061 | if (!iamremote) { | |
b92964b7 | 1062 | va_start(ap, fmt); |
5260325f | 1063 | vfprintf(stderr, fmt, ap); |
b92964b7 | 1064 | va_end(ap); |
5260325f | 1065 | fprintf(stderr, "\n"); |
1066 | } | |
8efc0c15 | 1067 | } |
1068 | ||
8efc0c15 | 1069 | void |
cf3248b8 | 1070 | verifydir(char *cp) |
8efc0c15 | 1071 | { |
1072 | struct stat stb; | |
1073 | ||
1074 | if (!stat(cp, &stb)) { | |
1075 | if (S_ISDIR(stb.st_mode)) | |
1076 | return; | |
1077 | errno = ENOTDIR; | |
1078 | } | |
1079 | run_err("%s: %s", cp, strerror(errno)); | |
8f4ab41b | 1080 | killchild(0); |
8efc0c15 | 1081 | } |
1082 | ||
1083 | int | |
cf3248b8 | 1084 | okname(char *cp0) |
8efc0c15 | 1085 | { |
1086 | int c; | |
1087 | char *cp; | |
1088 | ||
1089 | cp = cp0; | |
1090 | do { | |
cb220a93 | 1091 | c = (int)*cp; |
8efc0c15 | 1092 | if (c & 0200) |
1093 | goto bad; | |
0ec7661a | 1094 | if (!isalpha(c) && !isdigit(c)) { |
1095 | switch (c) { | |
1096 | case '\'': | |
1097 | case '"': | |
1098 | case '`': | |
1099 | case ' ': | |
1100 | case '#': | |
1101 | goto bad; | |
1102 | default: | |
1103 | break; | |
1104 | } | |
1105 | } | |
8efc0c15 | 1106 | } while (*++cp); |
1107 | return (1); | |
1108 | ||
c8d54615 | 1109 | bad: fprintf(stderr, "%s: invalid user name\n", cp0); |
8efc0c15 | 1110 | return (0); |
1111 | } | |
1112 | ||
1113 | BUF * | |
cf3248b8 | 1114 | allocbuf(BUF *bp, int fd, int blksize) |
8efc0c15 | 1115 | { |
1116 | size_t size; | |
98a7c37b | 1117 | #ifdef HAVE_STRUCT_STAT_ST_BLKSIZE |
8efc0c15 | 1118 | struct stat stb; |
1119 | ||
1120 | if (fstat(fd, &stb) < 0) { | |
1121 | run_err("fstat: %s", strerror(errno)); | |
1122 | return (0); | |
1123 | } | |
a0a14bcd | 1124 | size = roundup(stb.st_blksize, blksize); |
1125 | if (size == 0) | |
5260325f | 1126 | size = blksize; |
98a7c37b | 1127 | #else /* HAVE_STRUCT_STAT_ST_BLKSIZE */ |
2b87da3b | 1128 | size = blksize; |
98a7c37b | 1129 | #endif /* HAVE_STRUCT_STAT_ST_BLKSIZE */ |
8efc0c15 | 1130 | if (bp->cnt >= size) |
1131 | return (bp); | |
5260325f | 1132 | if (bp->buf == NULL) |
1133 | bp->buf = xmalloc(size); | |
1134 | else | |
1135 | bp->buf = xrealloc(bp->buf, size); | |
46660a9e | 1136 | memset(bp->buf, 0, size); |
8efc0c15 | 1137 | bp->cnt = size; |
1138 | return (bp); | |
1139 | } | |
1140 | ||
1141 | void | |
cf3248b8 | 1142 | lostconn(int signo) |
8efc0c15 | 1143 | { |
1144 | if (!iamremote) | |
08c260ea | 1145 | write(STDERR_FILENO, "lost connection\n", 16); |
1146 | if (signo) | |
1147 | _exit(1); | |
1148 | else | |
1149 | exit(1); | |
8efc0c15 | 1150 | } |