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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. | |
55 | * 3. All advertising materials mentioning features or use of this software | |
56 | * must display the following acknowledgement: | |
57 | * This product includes software developed by the University of | |
58 | * California, Berkeley and its contributors. | |
59 | * 4. Neither the name of the University nor the names of its contributors | |
60 | * may be used to endorse or promote products derived from this software | |
61 | * without specific prior written permission. | |
62 | * | |
63 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | |
64 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
65 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
66 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
67 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
68 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
69 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
70 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
71 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
72 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
73 | * SUCH DAMAGE. | |
74 | * | |
8efc0c15 | 75 | */ |
76 | ||
77 | #include "includes.h" | |
b65c3807 | 78 | RCSID("$OpenBSD: scp.c,v 1.97 2003/01/10 08:19:07 fgsch Exp $"); |
8efc0c15 | 79 | |
8efc0c15 | 80 | #include "xmalloc.h" |
42f11eb2 | 81 | #include "atomicio.h" |
82 | #include "pathnames.h" | |
83 | #include "log.h" | |
36a358ca | 84 | #include "misc.h" |
b65c3807 | 85 | #include "progressmeter.h" |
8efc0c15 | 86 | |
260d427b | 87 | #ifdef HAVE___PROGNAME |
88 | extern char *__progname; | |
89 | #else | |
90 | char *__progname; | |
91 | #endif | |
92 | ||
8a624ebf | 93 | /* Struct for addargs */ |
94 | arglist args; | |
94ec8c6b | 95 | |
8efc0c15 | 96 | /* Name of current file being transferred. */ |
97 | char *curfile; | |
98 | ||
99 | /* This is set to non-zero to enable verbose mode. */ | |
5260325f | 100 | int verbose_mode = 0; |
8efc0c15 | 101 | |
8efc0c15 | 102 | /* This is set to zero if the progressmeter is not desired. */ |
103 | int showprogress = 1; | |
104 | ||
2e73a022 | 105 | /* This is the program to execute for the secured connection. ("ssh" or -S) */ |
42f11eb2 | 106 | char *ssh_program = _PATH_SSH_PROGRAM; |
2e73a022 | 107 | |
252d1a24 | 108 | /* This is used to store the pid of ssh_program */ |
109 | pid_t do_cmd_pid; | |
110 | ||
aa3378df | 111 | /* |
112 | * This function executes the given command as the specified user on the | |
113 | * given host. This returns < 0 if execution fails, and >= 0 otherwise. This | |
114 | * assigns the input and output file descriptors on success. | |
115 | */ | |
8efc0c15 | 116 | |
6ae2364d | 117 | int |
2e73a022 | 118 | do_cmd(char *host, char *remuser, char *cmd, int *fdin, int *fdout, int argc) |
8efc0c15 | 119 | { |
5260325f | 120 | int pin[2], pout[2], reserved[2]; |
121 | ||
122 | if (verbose_mode) | |
0b2988ca | 123 | fprintf(stderr, |
124 | "Executing: program %s host %s, user %s, command %s\n", | |
125 | ssh_program, host, | |
126 | remuser ? remuser : "(unspecified)", cmd); | |
5260325f | 127 | |
aa3378df | 128 | /* |
129 | * Reserve two descriptors so that the real pipes won't get | |
130 | * descriptors 0 and 1 because that will screw up dup2 below. | |
131 | */ | |
5260325f | 132 | pipe(reserved); |
133 | ||
134 | /* Create a socket pair for communicating with ssh. */ | |
135 | if (pipe(pin) < 0) | |
136 | fatal("pipe: %s", strerror(errno)); | |
137 | if (pipe(pout) < 0) | |
138 | fatal("pipe: %s", strerror(errno)); | |
139 | ||
140 | /* Free the reserved descriptors. */ | |
141 | close(reserved[0]); | |
142 | close(reserved[1]); | |
143 | ||
144 | /* For a child to execute the command on the remote host using ssh. */ | |
252d1a24 | 145 | do_cmd_pid = fork(); |
146 | if (do_cmd_pid == 0) { | |
5260325f | 147 | /* Child. */ |
148 | close(pin[1]); | |
149 | close(pout[0]); | |
150 | dup2(pin[0], 0); | |
151 | dup2(pout[1], 1); | |
152 | close(pin[0]); | |
153 | close(pout[1]); | |
154 | ||
94ec8c6b | 155 | args.list[0] = ssh_program; |
156 | if (remuser != NULL) | |
8a624ebf | 157 | addargs(&args, "-l%s", remuser); |
158 | addargs(&args, "%s", host); | |
159 | addargs(&args, "%s", cmd); | |
5260325f | 160 | |
94ec8c6b | 161 | execvp(ssh_program, args.list); |
2e73a022 | 162 | perror(ssh_program); |
5260325f | 163 | exit(1); |
252d1a24 | 164 | } else if (do_cmd_pid == -1) { |
165 | fatal("fork: %s", strerror(errno)); | |
8efc0c15 | 166 | } |
5260325f | 167 | /* Parent. Close the other side, and return the local side. */ |
168 | close(pin[0]); | |
169 | *fdout = pin[1]; | |
170 | close(pout[1]); | |
171 | *fdin = pout[0]; | |
172 | return 0; | |
8efc0c15 | 173 | } |
174 | ||
8efc0c15 | 175 | typedef struct { |
176 | int cnt; | |
177 | char *buf; | |
178 | } BUF; | |
179 | ||
5260325f | 180 | BUF *allocbuf(BUF *, int, int); |
5260325f | 181 | void lostconn(int); |
182 | void nospace(void); | |
183 | int okname(char *); | |
184 | void run_err(const char *,...); | |
185 | void verifydir(char *); | |
8efc0c15 | 186 | |
8efc0c15 | 187 | struct passwd *pwd; |
5260325f | 188 | uid_t userid; |
8efc0c15 | 189 | int errs, remin, remout; |
190 | int pflag, iamremote, iamrecursive, targetshouldbedirectory; | |
191 | ||
192 | #define CMDNEEDS 64 | |
193 | char cmd[CMDNEEDS]; /* must hold "rcp -r -p -d\0" */ | |
194 | ||
5260325f | 195 | int response(void); |
196 | void rsource(char *, struct stat *); | |
197 | void sink(int, char *[]); | |
198 | void source(int, char *[]); | |
199 | void tolocal(int, char *[]); | |
200 | void toremote(char *, int, char *[]); | |
201 | void usage(void); | |
8efc0c15 | 202 | |
203 | int | |
204 | main(argc, argv) | |
205 | int argc; | |
206 | char *argv[]; | |
207 | { | |
252d1a24 | 208 | int ch, fflag, tflag, status; |
8efc0c15 | 209 | char *targ; |
210 | extern char *optarg; | |
211 | extern int optind; | |
212 | ||
260d427b | 213 | __progname = get_progname(argv[0]); |
214 | ||
94ec8c6b | 215 | args.list = NULL; |
7203d6bb | 216 | addargs(&args, "ssh"); /* overwritten with ssh_program */ |
8a624ebf | 217 | addargs(&args, "-x"); |
3a222388 | 218 | addargs(&args, "-oForwardAgent no"); |
e1c5bfaf | 219 | addargs(&args, "-oClearAllForwardings yes"); |
94ec8c6b | 220 | |
8efc0c15 | 221 | fflag = tflag = 0; |
f1278af7 | 222 | while ((ch = getopt(argc, argv, "dfprtvBCc:i:P:q46S:o:F:")) != -1) |
5260325f | 223 | switch (ch) { |
224 | /* User-visible flags. */ | |
48e671d5 | 225 | case '4': |
48e671d5 | 226 | case '6': |
94ec8c6b | 227 | case 'C': |
8a624ebf | 228 | addargs(&args, "-%c", ch); |
48e671d5 | 229 | break; |
94ec8c6b | 230 | case 'o': |
231 | case 'c': | |
232 | case 'i': | |
f1278af7 | 233 | case 'F': |
8a624ebf | 234 | addargs(&args, "-%c%s", ch, optarg); |
8efc0c15 | 235 | break; |
236 | case 'P': | |
8a624ebf | 237 | addargs(&args, "-p%s", optarg); |
94ec8c6b | 238 | break; |
239 | case 'B': | |
8a624ebf | 240 | addargs(&args, "-oBatchmode yes"); |
94ec8c6b | 241 | break; |
242 | case 'p': | |
243 | pflag = 1; | |
5260325f | 244 | break; |
8efc0c15 | 245 | case 'r': |
246 | iamrecursive = 1; | |
247 | break; | |
2e73a022 | 248 | case 'S': |
94ec8c6b | 249 | ssh_program = xstrdup(optarg); |
250 | break; | |
251 | case 'v': | |
4fc334a2 | 252 | addargs(&args, "-v"); |
94ec8c6b | 253 | verbose_mode = 1; |
254 | break; | |
255 | case 'q': | |
256 | showprogress = 0; | |
2e73a022 | 257 | break; |
258 | ||
5260325f | 259 | /* Server options. */ |
8efc0c15 | 260 | case 'd': |
261 | targetshouldbedirectory = 1; | |
262 | break; | |
5260325f | 263 | case 'f': /* "from" */ |
8efc0c15 | 264 | iamremote = 1; |
265 | fflag = 1; | |
266 | break; | |
5260325f | 267 | case 't': /* "to" */ |
8efc0c15 | 268 | iamremote = 1; |
269 | tflag = 1; | |
fe56c12b | 270 | #ifdef HAVE_CYGWIN |
271 | setmode(0, O_BINARY); | |
272 | #endif | |
8efc0c15 | 273 | break; |
8efc0c15 | 274 | default: |
275 | usage(); | |
276 | } | |
277 | argc -= optind; | |
278 | argv += optind; | |
279 | ||
280 | if ((pwd = getpwuid(userid = getuid())) == NULL) | |
5260325f | 281 | fatal("unknown user %d", (int) userid); |
8efc0c15 | 282 | |
5260325f | 283 | if (!isatty(STDERR_FILENO)) |
8efc0c15 | 284 | showprogress = 0; |
285 | ||
286 | remin = STDIN_FILENO; | |
287 | remout = STDOUT_FILENO; | |
288 | ||
2b87da3b | 289 | if (fflag) { |
5260325f | 290 | /* Follow "protocol", send data. */ |
291 | (void) response(); | |
8efc0c15 | 292 | source(argc, argv); |
293 | exit(errs != 0); | |
294 | } | |
5260325f | 295 | if (tflag) { |
296 | /* Receive data. */ | |
8efc0c15 | 297 | sink(argc, argv); |
298 | exit(errs != 0); | |
299 | } | |
8efc0c15 | 300 | if (argc < 2) |
301 | usage(); | |
302 | if (argc > 2) | |
303 | targetshouldbedirectory = 1; | |
304 | ||
305 | remin = remout = -1; | |
252d1a24 | 306 | do_cmd_pid = -1; |
8efc0c15 | 307 | /* Command to be executed on remote system using "ssh". */ |
0ed28836 | 308 | (void) snprintf(cmd, sizeof cmd, "scp%s%s%s%s", |
309 | verbose_mode ? " -v" : "", | |
2e73a022 | 310 | iamrecursive ? " -r" : "", pflag ? " -p" : "", |
311 | targetshouldbedirectory ? " -d" : ""); | |
8efc0c15 | 312 | |
5260325f | 313 | (void) signal(SIGPIPE, lostconn); |
8efc0c15 | 314 | |
315 | if ((targ = colon(argv[argc - 1]))) /* Dest is remote host. */ | |
316 | toremote(targ, argc, argv); | |
317 | else { | |
5260325f | 318 | tolocal(argc, argv); /* Dest is local host. */ |
8efc0c15 | 319 | if (targetshouldbedirectory) |
320 | verifydir(argv[argc - 1]); | |
321 | } | |
252d1a24 | 322 | /* |
323 | * Finally check the exit status of the ssh process, if one was forked | |
324 | * and no error has occured yet | |
325 | */ | |
326 | if (do_cmd_pid != -1 && errs == 0) { | |
327 | if (remin != -1) | |
328 | (void) close(remin); | |
329 | if (remout != -1) | |
330 | (void) close(remout); | |
331 | if (waitpid(do_cmd_pid, &status, 0) == -1) | |
332 | errs = 1; | |
333 | else { | |
334 | if (!WIFEXITED(status) || WEXITSTATUS(status) != 0) | |
335 | errs = 1; | |
336 | } | |
337 | } | |
8efc0c15 | 338 | exit(errs != 0); |
339 | } | |
340 | ||
341 | void | |
342 | toremote(targ, argc, argv) | |
343 | char *targ, *argv[]; | |
344 | int argc; | |
345 | { | |
346 | int i, len; | |
347 | char *bp, *host, *src, *suser, *thost, *tuser; | |
348 | ||
349 | *targ++ = 0; | |
350 | if (*targ == 0) | |
351 | targ = "."; | |
352 | ||
15748b4d | 353 | if ((thost = strrchr(argv[argc - 1], '@'))) { |
8efc0c15 | 354 | /* user@host */ |
355 | *thost++ = 0; | |
356 | tuser = argv[argc - 1]; | |
357 | if (*tuser == '\0') | |
358 | tuser = NULL; | |
359 | else if (!okname(tuser)) | |
360 | exit(1); | |
361 | } else { | |
362 | thost = argv[argc - 1]; | |
363 | tuser = NULL; | |
364 | } | |
365 | ||
366 | for (i = 0; i < argc - 1; i++) { | |
367 | src = colon(argv[i]); | |
5260325f | 368 | if (src) { /* remote to remote */ |
e1c5bfaf | 369 | static char *ssh_options = |
61eb812e | 370 | "-x -o'ClearAllForwardings yes'"; |
8efc0c15 | 371 | *src++ = 0; |
372 | if (*src == 0) | |
373 | src = "."; | |
15748b4d | 374 | host = strrchr(argv[i], '@'); |
2e73a022 | 375 | len = strlen(ssh_program) + strlen(argv[i]) + |
376 | strlen(src) + (tuser ? strlen(tuser) : 0) + | |
e1c5bfaf | 377 | strlen(thost) + strlen(targ) + |
378 | strlen(ssh_options) + CMDNEEDS + 20; | |
5260325f | 379 | bp = xmalloc(len); |
8efc0c15 | 380 | if (host) { |
381 | *host++ = 0; | |
48e671d5 | 382 | host = cleanhostname(host); |
8efc0c15 | 383 | suser = argv[i]; |
384 | if (*suser == '\0') | |
385 | suser = pwd->pw_name; | |
386 | else if (!okname(suser)) | |
387 | continue; | |
0ed28836 | 388 | snprintf(bp, len, |
e1c5bfaf | 389 | "%s%s %s -n " |
0ed28836 | 390 | "-l %s %s %s %s '%s%s%s:%s'", |
71c0d06a | 391 | ssh_program, verbose_mode ? " -v" : "", |
e1c5bfaf | 392 | ssh_options, suser, host, cmd, src, |
71c0d06a | 393 | tuser ? tuser : "", tuser ? "@" : "", |
394 | thost, targ); | |
48e671d5 | 395 | } else { |
396 | host = cleanhostname(argv[i]); | |
0ed28836 | 397 | snprintf(bp, len, |
e1c5bfaf | 398 | "exec %s%s %s -n %s " |
0ed28836 | 399 | "%s %s '%s%s%s:%s'", |
71c0d06a | 400 | ssh_program, verbose_mode ? " -v" : "", |
e1c5bfaf | 401 | ssh_options, host, cmd, src, |
71c0d06a | 402 | tuser ? tuser : "", tuser ? "@" : "", |
403 | thost, targ); | |
48e671d5 | 404 | } |
5260325f | 405 | if (verbose_mode) |
406 | fprintf(stderr, "Executing: %s\n", bp); | |
407 | (void) system(bp); | |
408 | (void) xfree(bp); | |
409 | } else { /* local to remote */ | |
8efc0c15 | 410 | if (remin == -1) { |
411 | len = strlen(targ) + CMDNEEDS + 20; | |
5260325f | 412 | bp = xmalloc(len); |
0ed28836 | 413 | (void) snprintf(bp, len, "%s -t %s", cmd, targ); |
48e671d5 | 414 | host = cleanhostname(thost); |
2e73a022 | 415 | if (do_cmd(host, tuser, bp, &remin, |
416 | &remout, argc) < 0) | |
5260325f | 417 | exit(1); |
8efc0c15 | 418 | if (response() < 0) |
419 | exit(1); | |
5260325f | 420 | (void) xfree(bp); |
8efc0c15 | 421 | } |
5260325f | 422 | source(1, argv + i); |
8efc0c15 | 423 | } |
424 | } | |
425 | } | |
426 | ||
427 | void | |
428 | tolocal(argc, argv) | |
429 | int argc; | |
430 | char *argv[]; | |
431 | { | |
432 | int i, len; | |
433 | char *bp, *host, *src, *suser; | |
434 | ||
435 | for (i = 0; i < argc - 1; i++) { | |
5260325f | 436 | if (!(src = colon(argv[i]))) { /* Local to local. */ |
8efc0c15 | 437 | len = strlen(_PATH_CP) + strlen(argv[i]) + |
2e73a022 | 438 | strlen(argv[argc - 1]) + 20; |
8efc0c15 | 439 | bp = xmalloc(len); |
0ed28836 | 440 | (void) snprintf(bp, len, "exec %s%s%s %s %s", _PATH_CP, |
2e73a022 | 441 | iamrecursive ? " -r" : "", pflag ? " -p" : "", |
442 | argv[i], argv[argc - 1]); | |
5260325f | 443 | if (verbose_mode) |
444 | fprintf(stderr, "Executing: %s\n", bp); | |
8efc0c15 | 445 | if (system(bp)) |
446 | ++errs; | |
5260325f | 447 | (void) xfree(bp); |
8efc0c15 | 448 | continue; |
449 | } | |
450 | *src++ = 0; | |
451 | if (*src == 0) | |
452 | src = "."; | |
15748b4d | 453 | if ((host = strrchr(argv[i], '@')) == NULL) { |
8efc0c15 | 454 | host = argv[i]; |
455 | suser = NULL; | |
456 | } else { | |
457 | *host++ = 0; | |
458 | suser = argv[i]; | |
459 | if (*suser == '\0') | |
460 | suser = pwd->pw_name; | |
461 | else if (!okname(suser)) | |
462 | continue; | |
463 | } | |
48e671d5 | 464 | host = cleanhostname(host); |
8efc0c15 | 465 | len = strlen(src) + CMDNEEDS + 20; |
5260325f | 466 | bp = xmalloc(len); |
0ed28836 | 467 | (void) snprintf(bp, len, "%s -f %s", cmd, src); |
2e73a022 | 468 | if (do_cmd(host, suser, bp, &remin, &remout, argc) < 0) { |
5260325f | 469 | (void) xfree(bp); |
470 | ++errs; | |
471 | continue; | |
8efc0c15 | 472 | } |
5260325f | 473 | xfree(bp); |
8efc0c15 | 474 | sink(1, argv + argc - 1); |
5260325f | 475 | (void) close(remin); |
8efc0c15 | 476 | remin = remout = -1; |
477 | } | |
478 | } | |
479 | ||
480 | void | |
481 | source(argc, argv) | |
482 | int argc; | |
483 | char *argv[]; | |
484 | { | |
485 | struct stat stb; | |
486 | static BUF buffer; | |
487 | BUF *bp; | |
b65c3807 | 488 | off_t i, amt, result, statbytes; |
ba917921 | 489 | int fd, haderr, indx; |
8efc0c15 | 490 | char *last, *name, buf[2048]; |
0fc791ba | 491 | int len; |
8efc0c15 | 492 | |
493 | for (indx = 0; indx < argc; ++indx) { | |
5260325f | 494 | name = argv[indx]; |
8efc0c15 | 495 | statbytes = 0; |
0fc791ba | 496 | len = strlen(name); |
497 | while (len > 1 && name[len-1] == '/') | |
498 | name[--len] = '\0'; | |
5720c10e | 499 | if (strchr(name, '\n') != NULL) { |
500 | run_err("%s: skipping, filename contains a newline", | |
501 | name); | |
502 | goto next; | |
503 | } | |
8efc0c15 | 504 | if ((fd = open(name, O_RDONLY, 0)) < 0) |
505 | goto syserr; | |
506 | if (fstat(fd, &stb) < 0) { | |
507 | syserr: run_err("%s: %s", name, strerror(errno)); | |
508 | goto next; | |
509 | } | |
510 | switch (stb.st_mode & S_IFMT) { | |
511 | case S_IFREG: | |
512 | break; | |
513 | case S_IFDIR: | |
514 | if (iamrecursive) { | |
515 | rsource(name, &stb); | |
516 | goto next; | |
517 | } | |
518 | /* FALLTHROUGH */ | |
519 | default: | |
520 | run_err("%s: not a regular file", name); | |
521 | goto next; | |
522 | } | |
523 | if ((last = strrchr(name, '/')) == NULL) | |
524 | last = name; | |
525 | else | |
526 | ++last; | |
527 | curfile = last; | |
528 | if (pflag) { | |
529 | /* | |
530 | * Make it compatible with possible future | |
531 | * versions expecting microseconds. | |
532 | */ | |
0ed28836 | 533 | (void) snprintf(buf, sizeof buf, "T%lu 0 %lu 0\n", |
1e3b8b07 | 534 | (u_long) stb.st_mtime, |
535 | (u_long) stb.st_atime); | |
3189621b | 536 | (void) atomicio(write, remout, buf, strlen(buf)); |
8efc0c15 | 537 | if (response() < 0) |
538 | goto next; | |
539 | } | |
540 | #define FILEMODEMASK (S_ISUID|S_ISGID|S_IRWXU|S_IRWXG|S_IRWXO) | |
30eac028 | 541 | #ifdef HAVE_LONG_LONG_INT |
bf1d27bd | 542 | snprintf(buf, sizeof buf, "C%04o %lld %s\n", |
1e3b8b07 | 543 | (u_int) (stb.st_mode & FILEMODEMASK), |
20a11d35 | 544 | (long long)stb.st_size, last); |
f8f230bf | 545 | #else |
546 | /* XXX: Handle integer overflow? */ | |
d1581d5f | 547 | snprintf(buf, sizeof buf, "C%04o %lu %s\n", |
f8f230bf | 548 | (u_int) (stb.st_mode & FILEMODEMASK), |
d1581d5f | 549 | (u_long) stb.st_size, last); |
f8f230bf | 550 | #endif |
5260325f | 551 | if (verbose_mode) { |
552 | fprintf(stderr, "Sending file modes: %s", buf); | |
5260325f | 553 | } |
3189621b | 554 | (void) atomicio(write, remout, buf, strlen(buf)); |
8efc0c15 | 555 | if (response() < 0) |
556 | goto next; | |
557 | if ((bp = allocbuf(&buffer, fd, 2048)) == NULL) { | |
5260325f | 558 | next: (void) close(fd); |
8efc0c15 | 559 | continue; |
560 | } | |
b65c3807 | 561 | if (showprogress) |
562 | start_progress_meter(curfile, stb.st_size, &statbytes); | |
8efc0c15 | 563 | /* Keep writing after an error so that we stay sync'd up. */ |
564 | for (haderr = i = 0; i < stb.st_size; i += bp->cnt) { | |
565 | amt = bp->cnt; | |
566 | if (i + amt > stb.st_size) | |
567 | amt = stb.st_size - i; | |
568 | if (!haderr) { | |
1d1ffb87 | 569 | result = atomicio(read, fd, bp->buf, amt); |
8efc0c15 | 570 | if (result != amt) |
571 | haderr = result >= 0 ? EIO : errno; | |
572 | } | |
573 | if (haderr) | |
3189621b | 574 | (void) atomicio(write, remout, bp->buf, amt); |
8efc0c15 | 575 | else { |
68227e6d | 576 | result = atomicio(write, remout, bp->buf, amt); |
8efc0c15 | 577 | if (result != amt) |
578 | haderr = result >= 0 ? EIO : errno; | |
579 | statbytes += result; | |
580 | } | |
581 | } | |
5260325f | 582 | if (showprogress) |
b65c3807 | 583 | stop_progress_meter(); |
8efc0c15 | 584 | |
585 | if (close(fd) < 0 && !haderr) | |
586 | haderr = errno; | |
587 | if (!haderr) | |
3189621b | 588 | (void) atomicio(write, remout, "", 1); |
8efc0c15 | 589 | else |
590 | run_err("%s: %s", name, strerror(haderr)); | |
5260325f | 591 | (void) response(); |
8efc0c15 | 592 | } |
593 | } | |
594 | ||
595 | void | |
596 | rsource(name, statp) | |
597 | char *name; | |
598 | struct stat *statp; | |
599 | { | |
600 | DIR *dirp; | |
601 | struct dirent *dp; | |
602 | char *last, *vect[1], path[1100]; | |
603 | ||
604 | if (!(dirp = opendir(name))) { | |
605 | run_err("%s: %s", name, strerror(errno)); | |
606 | return; | |
607 | } | |
608 | last = strrchr(name, '/'); | |
609 | if (last == 0) | |
610 | last = name; | |
611 | else | |
612 | last++; | |
613 | if (pflag) { | |
0ed28836 | 614 | (void) snprintf(path, sizeof(path), "T%lu 0 %lu 0\n", |
1e3b8b07 | 615 | (u_long) statp->st_mtime, |
616 | (u_long) statp->st_atime); | |
3189621b | 617 | (void) atomicio(write, remout, path, strlen(path)); |
8efc0c15 | 618 | if (response() < 0) { |
619 | closedir(dirp); | |
620 | return; | |
621 | } | |
622 | } | |
0ed28836 | 623 | (void) snprintf(path, sizeof path, "D%04o %d %.1024s\n", |
1e3b8b07 | 624 | (u_int) (statp->st_mode & FILEMODEMASK), 0, last); |
5260325f | 625 | if (verbose_mode) |
626 | fprintf(stderr, "Entering directory: %s", path); | |
3189621b | 627 | (void) atomicio(write, remout, path, strlen(path)); |
8efc0c15 | 628 | if (response() < 0) { |
629 | closedir(dirp); | |
630 | return; | |
631 | } | |
e5ff6ecf | 632 | while ((dp = readdir(dirp)) != NULL) { |
8efc0c15 | 633 | if (dp->d_ino == 0) |
634 | continue; | |
635 | if (!strcmp(dp->d_name, ".") || !strcmp(dp->d_name, "..")) | |
636 | continue; | |
637 | if (strlen(name) + 1 + strlen(dp->d_name) >= sizeof(path) - 1) { | |
638 | run_err("%s/%s: name too long", name, dp->d_name); | |
639 | continue; | |
640 | } | |
0ed28836 | 641 | (void) snprintf(path, sizeof path, "%s/%s", name, dp->d_name); |
8efc0c15 | 642 | vect[0] = path; |
643 | source(1, vect); | |
644 | } | |
5260325f | 645 | (void) closedir(dirp); |
3189621b | 646 | (void) atomicio(write, remout, "E\n", 2); |
5260325f | 647 | (void) response(); |
8efc0c15 | 648 | } |
649 | ||
650 | void | |
651 | sink(argc, argv) | |
652 | int argc; | |
653 | char *argv[]; | |
654 | { | |
655 | static BUF buffer; | |
656 | struct stat stb; | |
5260325f | 657 | enum { |
658 | YES, NO, DISPLAYED | |
659 | } wrerr; | |
8efc0c15 | 660 | BUF *bp; |
661 | off_t i, j; | |
662 | int amt, count, exists, first, mask, mode, ofd, omode; | |
b65c3807 | 663 | off_t size, statbytes; |
14a9a859 | 664 | int setimes, targisdir, wrerrno = 0; |
8efc0c15 | 665 | char ch, *cp, *np, *targ, *why, *vect[1], buf[2048]; |
188adeb2 | 666 | struct timeval tv[2]; |
8efc0c15 | 667 | |
36967a16 | 668 | #define atime tv[0] |
669 | #define mtime tv[1] | |
cb220a93 | 670 | #define SCREWUP(str) do { why = str; goto screwup; } while (0) |
8efc0c15 | 671 | |
672 | setimes = targisdir = 0; | |
673 | mask = umask(0); | |
674 | if (!pflag) | |
5260325f | 675 | (void) umask(mask); |
8efc0c15 | 676 | if (argc != 1) { |
677 | run_err("ambiguous target"); | |
678 | exit(1); | |
679 | } | |
680 | targ = *argv; | |
681 | if (targetshouldbedirectory) | |
682 | verifydir(targ); | |
5260325f | 683 | |
3189621b | 684 | (void) atomicio(write, remout, "", 1); |
8efc0c15 | 685 | if (stat(targ, &stb) == 0 && S_ISDIR(stb.st_mode)) |
686 | targisdir = 1; | |
687 | for (first = 1;; first = 0) { | |
688 | cp = buf; | |
1d1ffb87 | 689 | if (atomicio(read, remin, cp, 1) <= 0) |
8efc0c15 | 690 | return; |
691 | if (*cp++ == '\n') | |
692 | SCREWUP("unexpected <newline>"); | |
693 | do { | |
1d1ffb87 | 694 | if (atomicio(read, remin, &ch, sizeof(ch)) != sizeof(ch)) |
8efc0c15 | 695 | SCREWUP("lost connection"); |
696 | *cp++ = ch; | |
697 | } while (cp < &buf[sizeof(buf) - 1] && ch != '\n'); | |
698 | *cp = 0; | |
699 | ||
700 | if (buf[0] == '\01' || buf[0] == '\02') { | |
701 | if (iamremote == 0) | |
3189621b | 702 | (void) atomicio(write, STDERR_FILENO, |
71c0d06a | 703 | buf + 1, strlen(buf + 1)); |
8efc0c15 | 704 | if (buf[0] == '\02') |
705 | exit(1); | |
706 | ++errs; | |
707 | continue; | |
708 | } | |
709 | if (buf[0] == 'E') { | |
3189621b | 710 | (void) atomicio(write, remout, "", 1); |
8efc0c15 | 711 | return; |
712 | } | |
8efc0c15 | 713 | if (ch == '\n') |
714 | *--cp = 0; | |
715 | ||
8efc0c15 | 716 | cp = buf; |
717 | if (*cp == 'T') { | |
718 | setimes++; | |
719 | cp++; | |
36967a16 | 720 | mtime.tv_sec = strtol(cp, &cp, 10); |
721 | if (!cp || *cp++ != ' ') | |
8efc0c15 | 722 | SCREWUP("mtime.sec not delimited"); |
36967a16 | 723 | mtime.tv_usec = strtol(cp, &cp, 10); |
724 | if (!cp || *cp++ != ' ') | |
8efc0c15 | 725 | SCREWUP("mtime.usec not delimited"); |
36967a16 | 726 | atime.tv_sec = strtol(cp, &cp, 10); |
727 | if (!cp || *cp++ != ' ') | |
8efc0c15 | 728 | SCREWUP("atime.sec not delimited"); |
36967a16 | 729 | atime.tv_usec = strtol(cp, &cp, 10); |
730 | if (!cp || *cp++ != '\0') | |
8efc0c15 | 731 | SCREWUP("atime.usec not delimited"); |
3189621b | 732 | (void) atomicio(write, remout, "", 1); |
8efc0c15 | 733 | continue; |
734 | } | |
735 | if (*cp != 'C' && *cp != 'D') { | |
736 | /* | |
737 | * Check for the case "rcp remote:foo\* local:bar". | |
738 | * In this case, the line "No match." can be returned | |
739 | * by the shell before the rcp command on the remote is | |
740 | * executed so the ^Aerror_message convention isn't | |
741 | * followed. | |
742 | */ | |
743 | if (first) { | |
744 | run_err("%s", cp); | |
745 | exit(1); | |
746 | } | |
747 | SCREWUP("expected control record"); | |
748 | } | |
749 | mode = 0; | |
750 | for (++cp; cp < buf + 5; cp++) { | |
751 | if (*cp < '0' || *cp > '7') | |
752 | SCREWUP("bad mode"); | |
753 | mode = (mode << 3) | (*cp - '0'); | |
754 | } | |
755 | if (*cp++ != ' ') | |
756 | SCREWUP("mode not delimited"); | |
757 | ||
e5ff6ecf | 758 | for (size = 0; isdigit(*cp);) |
8efc0c15 | 759 | size = size * 10 + (*cp++ - '0'); |
760 | if (*cp++ != ' ') | |
761 | SCREWUP("size not delimited"); | |
762 | if (targisdir) { | |
763 | static char *namebuf; | |
764 | static int cursize; | |
765 | size_t need; | |
766 | ||
767 | need = strlen(targ) + strlen(cp) + 250; | |
0ed28836 | 768 | if (need > cursize) { |
769 | if (namebuf) | |
770 | xfree(namebuf); | |
5260325f | 771 | namebuf = xmalloc(need); |
0ed28836 | 772 | cursize = need; |
773 | } | |
774 | (void) snprintf(namebuf, need, "%s%s%s", targ, | |
39f9599a | 775 | strcmp(targ, "/") ? "/" : "", cp); |
8efc0c15 | 776 | np = namebuf; |
777 | } else | |
778 | np = targ; | |
779 | curfile = cp; | |
780 | exists = stat(np, &stb) == 0; | |
781 | if (buf[0] == 'D') { | |
782 | int mod_flag = pflag; | |
783 | if (exists) { | |
784 | if (!S_ISDIR(stb.st_mode)) { | |
785 | errno = ENOTDIR; | |
786 | goto bad; | |
787 | } | |
788 | if (pflag) | |
5260325f | 789 | (void) chmod(np, mode); |
8efc0c15 | 790 | } else { |
5260325f | 791 | /* Handle copying from a read-only |
792 | directory */ | |
8efc0c15 | 793 | mod_flag = 1; |
794 | if (mkdir(np, mode | S_IRWXU) < 0) | |
795 | goto bad; | |
796 | } | |
5c470997 | 797 | vect[0] = xstrdup(np); |
8efc0c15 | 798 | sink(1, vect); |
799 | if (setimes) { | |
800 | setimes = 0; | |
e68225b2 | 801 | if (utimes(vect[0], tv) < 0) |
5260325f | 802 | run_err("%s: set times: %s", |
e68225b2 | 803 | vect[0], strerror(errno)); |
8efc0c15 | 804 | } |
805 | if (mod_flag) | |
e68225b2 | 806 | (void) chmod(vect[0], mode); |
807 | if (vect[0]) | |
808 | xfree(vect[0]); | |
8efc0c15 | 809 | continue; |
810 | } | |
811 | omode = mode; | |
812 | mode |= S_IWRITE; | |
3e4fc5f9 | 813 | if ((ofd = open(np, O_WRONLY|O_CREAT, mode)) < 0) { |
8efc0c15 | 814 | bad: run_err("%s: %s", np, strerror(errno)); |
815 | continue; | |
816 | } | |
3189621b | 817 | (void) atomicio(write, remout, "", 1); |
8efc0c15 | 818 | if ((bp = allocbuf(&buffer, ofd, 4096)) == NULL) { |
5260325f | 819 | (void) close(ofd); |
8efc0c15 | 820 | continue; |
821 | } | |
822 | cp = bp->buf; | |
823 | wrerr = NO; | |
824 | ||
8efc0c15 | 825 | statbytes = 0; |
b65c3807 | 826 | if (showprogress) |
827 | start_progress_meter(curfile, size, &statbytes); | |
8efc0c15 | 828 | for (count = i = 0; i < size; i += 4096) { |
829 | amt = 4096; | |
830 | if (i + amt > size) | |
831 | amt = size - i; | |
832 | count += amt; | |
833 | do { | |
a22aff1f | 834 | j = read(remin, cp, amt); |
0b2988ca | 835 | if (j == -1 && (errno == EINTR || |
836 | errno == EAGAIN)) { | |
a22aff1f | 837 | continue; |
838 | } else if (j <= 0) { | |
8efc0c15 | 839 | run_err("%s", j ? strerror(errno) : |
e5ff6ecf | 840 | "dropped connection"); |
8efc0c15 | 841 | exit(1); |
842 | } | |
843 | amt -= j; | |
844 | cp += j; | |
5260325f | 845 | statbytes += j; |
8efc0c15 | 846 | } while (amt > 0); |
847 | if (count == bp->cnt) { | |
848 | /* Keep reading so we stay sync'd up. */ | |
849 | if (wrerr == NO) { | |
1d1ffb87 | 850 | j = atomicio(write, ofd, bp->buf, count); |
8efc0c15 | 851 | if (j != count) { |
852 | wrerr = YES; | |
5260325f | 853 | wrerrno = j >= 0 ? EIO : errno; |
8efc0c15 | 854 | } |
855 | } | |
856 | count = 0; | |
857 | cp = bp->buf; | |
858 | } | |
859 | } | |
860 | if (showprogress) | |
b65c3807 | 861 | stop_progress_meter(); |
8efc0c15 | 862 | if (count != 0 && wrerr == NO && |
1d1ffb87 | 863 | (j = atomicio(write, ofd, bp->buf, count)) != count) { |
8efc0c15 | 864 | wrerr = YES; |
5260325f | 865 | wrerrno = j >= 0 ? EIO : errno; |
8efc0c15 | 866 | } |
8efc0c15 | 867 | if (ftruncate(ofd, size)) { |
868 | run_err("%s: truncate: %s", np, strerror(errno)); | |
869 | wrerr = DISPLAYED; | |
870 | } | |
8efc0c15 | 871 | if (pflag) { |
872 | if (exists || omode != mode) | |
77bb0bca | 873 | #ifdef HAVE_FCHMOD |
8efc0c15 | 874 | if (fchmod(ofd, omode)) |
77bb0bca | 875 | #else /* HAVE_FCHMOD */ |
876 | if (chmod(np, omode)) | |
877 | #endif /* HAVE_FCHMOD */ | |
8efc0c15 | 878 | run_err("%s: set mode: %s", |
e5ff6ecf | 879 | np, strerror(errno)); |
8efc0c15 | 880 | } else { |
881 | if (!exists && omode != mode) | |
77bb0bca | 882 | #ifdef HAVE_FCHMOD |
8efc0c15 | 883 | if (fchmod(ofd, omode & ~mask)) |
77bb0bca | 884 | #else /* HAVE_FCHMOD */ |
885 | if (chmod(np, omode & ~mask)) | |
886 | #endif /* HAVE_FCHMOD */ | |
8efc0c15 | 887 | run_err("%s: set mode: %s", |
e5ff6ecf | 888 | np, strerror(errno)); |
8efc0c15 | 889 | } |
704b1659 | 890 | if (close(ofd) == -1) { |
891 | wrerr = YES; | |
892 | wrerrno = errno; | |
893 | } | |
5260325f | 894 | (void) response(); |
8efc0c15 | 895 | if (setimes && wrerr == NO) { |
896 | setimes = 0; | |
188adeb2 | 897 | if (utimes(np, tv) < 0) { |
8efc0c15 | 898 | run_err("%s: set times: %s", |
e5ff6ecf | 899 | np, strerror(errno)); |
8efc0c15 | 900 | wrerr = DISPLAYED; |
901 | } | |
902 | } | |
5260325f | 903 | switch (wrerr) { |
8efc0c15 | 904 | case YES: |
905 | run_err("%s: %s", np, strerror(wrerrno)); | |
906 | break; | |
907 | case NO: | |
3189621b | 908 | (void) atomicio(write, remout, "", 1); |
8efc0c15 | 909 | break; |
910 | case DISPLAYED: | |
911 | break; | |
912 | } | |
913 | } | |
914 | screwup: | |
915 | run_err("protocol error: %s", why); | |
916 | exit(1); | |
917 | } | |
918 | ||
919 | int | |
d5bb9418 | 920 | response(void) |
8efc0c15 | 921 | { |
922 | char ch, *cp, resp, rbuf[2048]; | |
923 | ||
1d1ffb87 | 924 | if (atomicio(read, remin, &resp, sizeof(resp)) != sizeof(resp)) |
8efc0c15 | 925 | lostconn(0); |
926 | ||
927 | cp = rbuf; | |
5260325f | 928 | switch (resp) { |
929 | case 0: /* ok */ | |
8efc0c15 | 930 | return (0); |
931 | default: | |
932 | *cp++ = resp; | |
933 | /* FALLTHROUGH */ | |
5260325f | 934 | case 1: /* error, followed by error msg */ |
935 | case 2: /* fatal error, "" */ | |
8efc0c15 | 936 | do { |
1d1ffb87 | 937 | if (atomicio(read, remin, &ch, sizeof(ch)) != sizeof(ch)) |
8efc0c15 | 938 | lostconn(0); |
939 | *cp++ = ch; | |
940 | } while (cp < &rbuf[sizeof(rbuf) - 1] && ch != '\n'); | |
941 | ||
942 | if (!iamremote) | |
3189621b | 943 | (void) atomicio(write, STDERR_FILENO, rbuf, cp - rbuf); |
8efc0c15 | 944 | ++errs; |
945 | if (resp == 1) | |
946 | return (-1); | |
947 | exit(1); | |
948 | } | |
949 | /* NOTREACHED */ | |
950 | } | |
951 | ||
952 | void | |
d5bb9418 | 953 | usage(void) |
8efc0c15 | 954 | { |
f1278af7 | 955 | (void) fprintf(stderr, |
3015d321 | 956 | "usage: scp [-pqrvBC46] [-F config] [-S program] [-P port]\n" |
957 | " [-c cipher] [-i identity] [-o option]\n" | |
958 | " [[user@]host1:]file1 [...] [[user@]host2:]file2\n"); | |
8efc0c15 | 959 | exit(1); |
960 | } | |
961 | ||
962 | void | |
5260325f | 963 | run_err(const char *fmt,...) |
8efc0c15 | 964 | { |
965 | static FILE *fp; | |
966 | va_list ap; | |
8efc0c15 | 967 | |
968 | ++errs; | |
969 | if (fp == NULL && !(fp = fdopen(remout, "w"))) | |
970 | return; | |
5260325f | 971 | (void) fprintf(fp, "%c", 0x01); |
972 | (void) fprintf(fp, "scp: "); | |
b92964b7 | 973 | va_start(ap, fmt); |
5260325f | 974 | (void) vfprintf(fp, fmt, ap); |
b92964b7 | 975 | va_end(ap); |
5260325f | 976 | (void) fprintf(fp, "\n"); |
977 | (void) fflush(fp); | |
978 | ||
979 | if (!iamremote) { | |
b92964b7 | 980 | va_start(ap, fmt); |
5260325f | 981 | vfprintf(stderr, fmt, ap); |
b92964b7 | 982 | va_end(ap); |
5260325f | 983 | fprintf(stderr, "\n"); |
984 | } | |
8efc0c15 | 985 | } |
986 | ||
8efc0c15 | 987 | void |
988 | verifydir(cp) | |
989 | char *cp; | |
990 | { | |
991 | struct stat stb; | |
992 | ||
993 | if (!stat(cp, &stb)) { | |
994 | if (S_ISDIR(stb.st_mode)) | |
995 | return; | |
996 | errno = ENOTDIR; | |
997 | } | |
998 | run_err("%s: %s", cp, strerror(errno)); | |
999 | exit(1); | |
1000 | } | |
1001 | ||
1002 | int | |
1003 | okname(cp0) | |
1004 | char *cp0; | |
1005 | { | |
1006 | int c; | |
1007 | char *cp; | |
1008 | ||
1009 | cp = cp0; | |
1010 | do { | |
cb220a93 | 1011 | c = (int)*cp; |
8efc0c15 | 1012 | if (c & 0200) |
1013 | goto bad; | |
731c1541 | 1014 | if (!isalpha(c) && !isdigit(c) && |
15748b4d | 1015 | c != '@' && c != '_' && c != '-' && c != '.' && c != '+') |
8efc0c15 | 1016 | goto bad; |
1017 | } while (*++cp); | |
1018 | return (1); | |
1019 | ||
c8d54615 | 1020 | bad: fprintf(stderr, "%s: invalid user name\n", cp0); |
8efc0c15 | 1021 | return (0); |
1022 | } | |
1023 | ||
1024 | BUF * | |
1025 | allocbuf(bp, fd, blksize) | |
1026 | BUF *bp; | |
1027 | int fd, blksize; | |
1028 | { | |
1029 | size_t size; | |
98a7c37b | 1030 | #ifdef HAVE_STRUCT_STAT_ST_BLKSIZE |
8efc0c15 | 1031 | struct stat stb; |
1032 | ||
1033 | if (fstat(fd, &stb) < 0) { | |
1034 | run_err("fstat: %s", strerror(errno)); | |
1035 | return (0); | |
1036 | } | |
a0a14bcd | 1037 | size = roundup(stb.st_blksize, blksize); |
1038 | if (size == 0) | |
5260325f | 1039 | size = blksize; |
98a7c37b | 1040 | #else /* HAVE_STRUCT_STAT_ST_BLKSIZE */ |
2b87da3b | 1041 | size = blksize; |
98a7c37b | 1042 | #endif /* HAVE_STRUCT_STAT_ST_BLKSIZE */ |
8efc0c15 | 1043 | if (bp->cnt >= size) |
1044 | return (bp); | |
5260325f | 1045 | if (bp->buf == NULL) |
1046 | bp->buf = xmalloc(size); | |
1047 | else | |
1048 | bp->buf = xrealloc(bp->buf, size); | |
46660a9e | 1049 | memset(bp->buf, 0, size); |
8efc0c15 | 1050 | bp->cnt = size; |
1051 | return (bp); | |
1052 | } | |
1053 | ||
1054 | void | |
1055 | lostconn(signo) | |
1056 | int signo; | |
1057 | { | |
1058 | if (!iamremote) | |
08c260ea | 1059 | write(STDERR_FILENO, "lost connection\n", 16); |
1060 | if (signo) | |
1061 | _exit(1); | |
1062 | else | |
1063 | exit(1); | |
8efc0c15 | 1064 | } |