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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" | |
1fb23629 | 74 | RCSID("$OpenBSD: scp.c,v 1.106 2003/06/12 15:34:09 nino 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 | #ifdef HAVE___PROGNAME |
84 | extern char *__progname; | |
85 | #else | |
86 | char *__progname; | |
87 | #endif | |
88 | ||
6ea3c52a | 89 | void bwlimit(int); |
90 | ||
8a624ebf | 91 | /* Struct for addargs */ |
92 | arglist args; | |
94ec8c6b | 93 | |
6ea3c52a | 94 | /* Bandwidth limit */ |
eb180c2e | 95 | off_t limitbw = 0; |
6ea3c52a | 96 | |
8efc0c15 | 97 | /* Name of current file being transferred. */ |
98 | char *curfile; | |
99 | ||
100 | /* This is set to non-zero to enable verbose mode. */ | |
5260325f | 101 | int verbose_mode = 0; |
8efc0c15 | 102 | |
8efc0c15 | 103 | /* This is set to zero if the progressmeter is not desired. */ |
104 | int showprogress = 1; | |
105 | ||
2e73a022 | 106 | /* This is the program to execute for the secured connection. ("ssh" or -S) */ |
42f11eb2 | 107 | char *ssh_program = _PATH_SSH_PROGRAM; |
2e73a022 | 108 | |
252d1a24 | 109 | /* This is used to store the pid of ssh_program */ |
0f764b2f | 110 | pid_t do_cmd_pid = -1; |
111 | ||
112 | static void | |
113 | killchild(int signo) | |
114 | { | |
115 | if (do_cmd_pid > 1) | |
116 | kill(do_cmd_pid, signo); | |
117 | ||
118 | _exit(1); | |
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 { |
189 | int cnt; | |
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 | ||
260d427b | 225 | __progname = get_progname(argv[0]); |
226 | ||
94ec8c6b | 227 | args.list = NULL; |
7203d6bb | 228 | addargs(&args, "ssh"); /* overwritten with ssh_program */ |
8a624ebf | 229 | addargs(&args, "-x"); |
3a222388 | 230 | addargs(&args, "-oForwardAgent no"); |
e1c5bfaf | 231 | addargs(&args, "-oClearAllForwardings yes"); |
94ec8c6b | 232 | |
8efc0c15 | 233 | fflag = tflag = 0; |
e6b15f23 | 234 | while ((ch = getopt(argc, argv, "dfl:prtvBCc:i:P:q1246S:o:F:")) != -1) |
5260325f | 235 | switch (ch) { |
236 | /* User-visible flags. */ | |
e6b15f23 | 237 | case '1': |
238 | case '2': | |
48e671d5 | 239 | case '4': |
48e671d5 | 240 | case '6': |
94ec8c6b | 241 | case 'C': |
8a624ebf | 242 | addargs(&args, "-%c", ch); |
48e671d5 | 243 | break; |
94ec8c6b | 244 | case 'o': |
245 | case 'c': | |
246 | case 'i': | |
f1278af7 | 247 | case 'F': |
8a624ebf | 248 | addargs(&args, "-%c%s", ch, optarg); |
8efc0c15 | 249 | break; |
250 | case 'P': | |
8a624ebf | 251 | addargs(&args, "-p%s", optarg); |
94ec8c6b | 252 | break; |
253 | case 'B': | |
8a624ebf | 254 | addargs(&args, "-oBatchmode yes"); |
94ec8c6b | 255 | break; |
6ea3c52a | 256 | case 'l': |
257 | speed = strtod(optarg, &endp); | |
258 | if (speed <= 0 || *endp != '\0') | |
259 | usage(); | |
eb180c2e | 260 | limitbw = speed * 1024; |
6ea3c52a | 261 | break; |
94ec8c6b | 262 | case 'p': |
263 | pflag = 1; | |
5260325f | 264 | break; |
8efc0c15 | 265 | case 'r': |
266 | iamrecursive = 1; | |
267 | break; | |
2e73a022 | 268 | case 'S': |
94ec8c6b | 269 | ssh_program = xstrdup(optarg); |
270 | break; | |
271 | case 'v': | |
4fc334a2 | 272 | addargs(&args, "-v"); |
94ec8c6b | 273 | verbose_mode = 1; |
274 | break; | |
275 | case 'q': | |
276 | showprogress = 0; | |
2e73a022 | 277 | break; |
278 | ||
5260325f | 279 | /* Server options. */ |
8efc0c15 | 280 | case 'd': |
281 | targetshouldbedirectory = 1; | |
282 | break; | |
5260325f | 283 | case 'f': /* "from" */ |
8efc0c15 | 284 | iamremote = 1; |
285 | fflag = 1; | |
286 | break; | |
5260325f | 287 | case 't': /* "to" */ |
8efc0c15 | 288 | iamremote = 1; |
289 | tflag = 1; | |
fe56c12b | 290 | #ifdef HAVE_CYGWIN |
291 | setmode(0, O_BINARY); | |
292 | #endif | |
8efc0c15 | 293 | break; |
8efc0c15 | 294 | default: |
295 | usage(); | |
296 | } | |
297 | argc -= optind; | |
298 | argv += optind; | |
299 | ||
300 | if ((pwd = getpwuid(userid = getuid())) == NULL) | |
5260325f | 301 | fatal("unknown user %d", (int) userid); |
8efc0c15 | 302 | |
5260325f | 303 | if (!isatty(STDERR_FILENO)) |
8efc0c15 | 304 | showprogress = 0; |
305 | ||
306 | remin = STDIN_FILENO; | |
307 | remout = STDOUT_FILENO; | |
308 | ||
2b87da3b | 309 | if (fflag) { |
5260325f | 310 | /* Follow "protocol", send data. */ |
311 | (void) response(); | |
8efc0c15 | 312 | source(argc, argv); |
313 | exit(errs != 0); | |
314 | } | |
5260325f | 315 | if (tflag) { |
316 | /* Receive data. */ | |
8efc0c15 | 317 | sink(argc, argv); |
318 | exit(errs != 0); | |
319 | } | |
8efc0c15 | 320 | if (argc < 2) |
321 | usage(); | |
322 | if (argc > 2) | |
323 | targetshouldbedirectory = 1; | |
324 | ||
325 | remin = remout = -1; | |
252d1a24 | 326 | do_cmd_pid = -1; |
8efc0c15 | 327 | /* Command to be executed on remote system using "ssh". */ |
0ed28836 | 328 | (void) snprintf(cmd, sizeof cmd, "scp%s%s%s%s", |
329 | verbose_mode ? " -v" : "", | |
2e73a022 | 330 | iamrecursive ? " -r" : "", pflag ? " -p" : "", |
331 | targetshouldbedirectory ? " -d" : ""); | |
8efc0c15 | 332 | |
5260325f | 333 | (void) signal(SIGPIPE, lostconn); |
8efc0c15 | 334 | |
335 | if ((targ = colon(argv[argc - 1]))) /* Dest is remote host. */ | |
336 | toremote(targ, argc, argv); | |
337 | else { | |
5260325f | 338 | tolocal(argc, argv); /* Dest is local host. */ |
8efc0c15 | 339 | if (targetshouldbedirectory) |
340 | verifydir(argv[argc - 1]); | |
341 | } | |
252d1a24 | 342 | /* |
343 | * Finally check the exit status of the ssh process, if one was forked | |
344 | * and no error has occured yet | |
345 | */ | |
346 | if (do_cmd_pid != -1 && errs == 0) { | |
347 | if (remin != -1) | |
348 | (void) close(remin); | |
349 | if (remout != -1) | |
350 | (void) close(remout); | |
351 | if (waitpid(do_cmd_pid, &status, 0) == -1) | |
352 | errs = 1; | |
353 | else { | |
354 | if (!WIFEXITED(status) || WEXITSTATUS(status) != 0) | |
355 | errs = 1; | |
356 | } | |
357 | } | |
8efc0c15 | 358 | exit(errs != 0); |
359 | } | |
360 | ||
361 | void | |
cf3248b8 | 362 | toremote(char *targ, int argc, char **argv) |
8efc0c15 | 363 | { |
364 | int i, len; | |
365 | char *bp, *host, *src, *suser, *thost, *tuser; | |
366 | ||
367 | *targ++ = 0; | |
368 | if (*targ == 0) | |
369 | targ = "."; | |
370 | ||
15748b4d | 371 | if ((thost = strrchr(argv[argc - 1], '@'))) { |
8efc0c15 | 372 | /* user@host */ |
373 | *thost++ = 0; | |
374 | tuser = argv[argc - 1]; | |
375 | if (*tuser == '\0') | |
376 | tuser = NULL; | |
8efc0c15 | 377 | } else { |
378 | thost = argv[argc - 1]; | |
379 | tuser = NULL; | |
380 | } | |
381 | ||
382 | for (i = 0; i < argc - 1; i++) { | |
383 | src = colon(argv[i]); | |
5260325f | 384 | if (src) { /* remote to remote */ |
e1c5bfaf | 385 | static char *ssh_options = |
61eb812e | 386 | "-x -o'ClearAllForwardings yes'"; |
8efc0c15 | 387 | *src++ = 0; |
388 | if (*src == 0) | |
389 | src = "."; | |
15748b4d | 390 | host = strrchr(argv[i], '@'); |
2e73a022 | 391 | len = strlen(ssh_program) + strlen(argv[i]) + |
392 | strlen(src) + (tuser ? strlen(tuser) : 0) + | |
e1c5bfaf | 393 | strlen(thost) + strlen(targ) + |
394 | strlen(ssh_options) + CMDNEEDS + 20; | |
5260325f | 395 | bp = xmalloc(len); |
8efc0c15 | 396 | if (host) { |
397 | *host++ = 0; | |
48e671d5 | 398 | host = cleanhostname(host); |
8efc0c15 | 399 | suser = argv[i]; |
400 | if (*suser == '\0') | |
401 | suser = pwd->pw_name; | |
3e2f2431 | 402 | else if (!okname(suser)) { |
403 | xfree(bp); | |
8efc0c15 | 404 | continue; |
3e2f2431 | 405 | } |
406 | if (tuser && !okname(tuser)) { | |
407 | xfree(bp); | |
0ec7661a | 408 | continue; |
3e2f2431 | 409 | } |
0ed28836 | 410 | snprintf(bp, len, |
e1c5bfaf | 411 | "%s%s %s -n " |
0ed28836 | 412 | "-l %s %s %s %s '%s%s%s:%s'", |
71c0d06a | 413 | ssh_program, verbose_mode ? " -v" : "", |
e1c5bfaf | 414 | ssh_options, suser, host, cmd, src, |
71c0d06a | 415 | tuser ? tuser : "", tuser ? "@" : "", |
416 | thost, targ); | |
48e671d5 | 417 | } else { |
418 | host = cleanhostname(argv[i]); | |
0ed28836 | 419 | snprintf(bp, len, |
e1c5bfaf | 420 | "exec %s%s %s -n %s " |
0ed28836 | 421 | "%s %s '%s%s%s:%s'", |
71c0d06a | 422 | ssh_program, verbose_mode ? " -v" : "", |
e1c5bfaf | 423 | ssh_options, host, cmd, src, |
71c0d06a | 424 | tuser ? tuser : "", tuser ? "@" : "", |
425 | thost, targ); | |
48e671d5 | 426 | } |
5260325f | 427 | if (verbose_mode) |
428 | fprintf(stderr, "Executing: %s\n", bp); | |
429 | (void) system(bp); | |
430 | (void) xfree(bp); | |
431 | } else { /* local to remote */ | |
8efc0c15 | 432 | if (remin == -1) { |
433 | len = strlen(targ) + CMDNEEDS + 20; | |
5260325f | 434 | bp = xmalloc(len); |
0ed28836 | 435 | (void) snprintf(bp, len, "%s -t %s", cmd, targ); |
48e671d5 | 436 | host = cleanhostname(thost); |
2e73a022 | 437 | if (do_cmd(host, tuser, bp, &remin, |
438 | &remout, argc) < 0) | |
5260325f | 439 | exit(1); |
8efc0c15 | 440 | if (response() < 0) |
441 | exit(1); | |
5260325f | 442 | (void) xfree(bp); |
8efc0c15 | 443 | } |
5260325f | 444 | source(1, argv + i); |
8efc0c15 | 445 | } |
446 | } | |
447 | } | |
448 | ||
449 | void | |
cf3248b8 | 450 | tolocal(int argc, char **argv) |
8efc0c15 | 451 | { |
452 | int i, len; | |
453 | char *bp, *host, *src, *suser; | |
454 | ||
455 | for (i = 0; i < argc - 1; i++) { | |
5260325f | 456 | if (!(src = colon(argv[i]))) { /* Local to local. */ |
8efc0c15 | 457 | len = strlen(_PATH_CP) + strlen(argv[i]) + |
2e73a022 | 458 | strlen(argv[argc - 1]) + 20; |
8efc0c15 | 459 | bp = xmalloc(len); |
0ed28836 | 460 | (void) snprintf(bp, len, "exec %s%s%s %s %s", _PATH_CP, |
2e73a022 | 461 | iamrecursive ? " -r" : "", pflag ? " -p" : "", |
462 | argv[i], argv[argc - 1]); | |
5260325f | 463 | if (verbose_mode) |
464 | fprintf(stderr, "Executing: %s\n", bp); | |
8efc0c15 | 465 | if (system(bp)) |
466 | ++errs; | |
5260325f | 467 | (void) xfree(bp); |
8efc0c15 | 468 | continue; |
469 | } | |
470 | *src++ = 0; | |
471 | if (*src == 0) | |
472 | src = "."; | |
15748b4d | 473 | if ((host = strrchr(argv[i], '@')) == NULL) { |
8efc0c15 | 474 | host = argv[i]; |
475 | suser = NULL; | |
476 | } else { | |
477 | *host++ = 0; | |
478 | suser = argv[i]; | |
479 | if (*suser == '\0') | |
480 | suser = pwd->pw_name; | |
8efc0c15 | 481 | } |
48e671d5 | 482 | host = cleanhostname(host); |
8efc0c15 | 483 | len = strlen(src) + CMDNEEDS + 20; |
5260325f | 484 | bp = xmalloc(len); |
0ed28836 | 485 | (void) snprintf(bp, len, "%s -f %s", cmd, src); |
2e73a022 | 486 | if (do_cmd(host, suser, bp, &remin, &remout, argc) < 0) { |
5260325f | 487 | (void) xfree(bp); |
488 | ++errs; | |
489 | continue; | |
8efc0c15 | 490 | } |
5260325f | 491 | xfree(bp); |
8efc0c15 | 492 | sink(1, argv + argc - 1); |
5260325f | 493 | (void) close(remin); |
8efc0c15 | 494 | remin = remout = -1; |
495 | } | |
496 | } | |
497 | ||
498 | void | |
cf3248b8 | 499 | source(int argc, char **argv) |
8efc0c15 | 500 | { |
501 | struct stat stb; | |
502 | static BUF buffer; | |
503 | BUF *bp; | |
b65c3807 | 504 | off_t i, amt, result, statbytes; |
ba917921 | 505 | int fd, haderr, indx; |
8efc0c15 | 506 | char *last, *name, buf[2048]; |
0fc791ba | 507 | int len; |
8efc0c15 | 508 | |
509 | for (indx = 0; indx < argc; ++indx) { | |
5260325f | 510 | name = argv[indx]; |
8efc0c15 | 511 | statbytes = 0; |
0fc791ba | 512 | len = strlen(name); |
513 | while (len > 1 && name[len-1] == '/') | |
514 | name[--len] = '\0'; | |
5720c10e | 515 | if (strchr(name, '\n') != NULL) { |
516 | run_err("%s: skipping, filename contains a newline", | |
517 | name); | |
518 | goto next; | |
519 | } | |
8efc0c15 | 520 | if ((fd = open(name, O_RDONLY, 0)) < 0) |
521 | goto syserr; | |
522 | if (fstat(fd, &stb) < 0) { | |
523 | syserr: run_err("%s: %s", name, strerror(errno)); | |
524 | goto next; | |
525 | } | |
526 | switch (stb.st_mode & S_IFMT) { | |
527 | case S_IFREG: | |
528 | break; | |
529 | case S_IFDIR: | |
530 | if (iamrecursive) { | |
531 | rsource(name, &stb); | |
532 | goto next; | |
533 | } | |
534 | /* FALLTHROUGH */ | |
535 | default: | |
536 | run_err("%s: not a regular file", name); | |
537 | goto next; | |
538 | } | |
539 | if ((last = strrchr(name, '/')) == NULL) | |
540 | last = name; | |
541 | else | |
542 | ++last; | |
543 | curfile = last; | |
544 | if (pflag) { | |
545 | /* | |
546 | * Make it compatible with possible future | |
547 | * versions expecting microseconds. | |
548 | */ | |
0ed28836 | 549 | (void) snprintf(buf, sizeof buf, "T%lu 0 %lu 0\n", |
1e3b8b07 | 550 | (u_long) stb.st_mtime, |
551 | (u_long) stb.st_atime); | |
3189621b | 552 | (void) atomicio(write, remout, buf, strlen(buf)); |
8efc0c15 | 553 | if (response() < 0) |
554 | goto next; | |
555 | } | |
556 | #define FILEMODEMASK (S_ISUID|S_ISGID|S_IRWXU|S_IRWXG|S_IRWXO) | |
bf1d27bd | 557 | snprintf(buf, sizeof buf, "C%04o %lld %s\n", |
1e3b8b07 | 558 | (u_int) (stb.st_mode & FILEMODEMASK), |
ded9dd18 | 559 | (int64_t)stb.st_size, last); |
5260325f | 560 | if (verbose_mode) { |
561 | fprintf(stderr, "Sending file modes: %s", buf); | |
5260325f | 562 | } |
3189621b | 563 | (void) atomicio(write, remout, buf, strlen(buf)); |
8efc0c15 | 564 | if (response() < 0) |
565 | goto next; | |
566 | if ((bp = allocbuf(&buffer, fd, 2048)) == NULL) { | |
5260325f | 567 | next: (void) close(fd); |
8efc0c15 | 568 | continue; |
569 | } | |
b65c3807 | 570 | if (showprogress) |
571 | start_progress_meter(curfile, stb.st_size, &statbytes); | |
8efc0c15 | 572 | /* Keep writing after an error so that we stay sync'd up. */ |
573 | for (haderr = i = 0; i < stb.st_size; i += bp->cnt) { | |
574 | amt = bp->cnt; | |
575 | if (i + amt > stb.st_size) | |
576 | amt = stb.st_size - i; | |
577 | if (!haderr) { | |
1d1ffb87 | 578 | result = atomicio(read, fd, bp->buf, amt); |
8efc0c15 | 579 | if (result != amt) |
580 | haderr = result >= 0 ? EIO : errno; | |
581 | } | |
582 | if (haderr) | |
3189621b | 583 | (void) atomicio(write, remout, bp->buf, amt); |
8efc0c15 | 584 | else { |
68227e6d | 585 | result = atomicio(write, remout, bp->buf, amt); |
8efc0c15 | 586 | if (result != amt) |
587 | haderr = result >= 0 ? EIO : errno; | |
588 | statbytes += result; | |
589 | } | |
eb180c2e | 590 | if (limitbw) |
6ea3c52a | 591 | bwlimit(amt); |
8efc0c15 | 592 | } |
5260325f | 593 | if (showprogress) |
b65c3807 | 594 | stop_progress_meter(); |
8efc0c15 | 595 | |
596 | if (close(fd) < 0 && !haderr) | |
597 | haderr = errno; | |
598 | if (!haderr) | |
3189621b | 599 | (void) atomicio(write, remout, "", 1); |
8efc0c15 | 600 | else |
601 | run_err("%s: %s", name, strerror(haderr)); | |
5260325f | 602 | (void) response(); |
8efc0c15 | 603 | } |
604 | } | |
605 | ||
606 | void | |
cf3248b8 | 607 | rsource(char *name, struct stat *statp) |
8efc0c15 | 608 | { |
609 | DIR *dirp; | |
610 | struct dirent *dp; | |
611 | char *last, *vect[1], path[1100]; | |
612 | ||
613 | if (!(dirp = opendir(name))) { | |
614 | run_err("%s: %s", name, strerror(errno)); | |
615 | return; | |
616 | } | |
617 | last = strrchr(name, '/'); | |
618 | if (last == 0) | |
619 | last = name; | |
620 | else | |
621 | last++; | |
622 | if (pflag) { | |
0ed28836 | 623 | (void) snprintf(path, sizeof(path), "T%lu 0 %lu 0\n", |
1e3b8b07 | 624 | (u_long) statp->st_mtime, |
625 | (u_long) statp->st_atime); | |
3189621b | 626 | (void) atomicio(write, remout, path, strlen(path)); |
8efc0c15 | 627 | if (response() < 0) { |
628 | closedir(dirp); | |
629 | return; | |
630 | } | |
631 | } | |
0ed28836 | 632 | (void) snprintf(path, sizeof path, "D%04o %d %.1024s\n", |
1e3b8b07 | 633 | (u_int) (statp->st_mode & FILEMODEMASK), 0, last); |
5260325f | 634 | if (verbose_mode) |
635 | fprintf(stderr, "Entering directory: %s", path); | |
3189621b | 636 | (void) atomicio(write, remout, path, strlen(path)); |
8efc0c15 | 637 | if (response() < 0) { |
638 | closedir(dirp); | |
639 | return; | |
640 | } | |
e5ff6ecf | 641 | while ((dp = readdir(dirp)) != NULL) { |
8efc0c15 | 642 | if (dp->d_ino == 0) |
643 | continue; | |
644 | if (!strcmp(dp->d_name, ".") || !strcmp(dp->d_name, "..")) | |
645 | continue; | |
646 | if (strlen(name) + 1 + strlen(dp->d_name) >= sizeof(path) - 1) { | |
647 | run_err("%s/%s: name too long", name, dp->d_name); | |
648 | continue; | |
649 | } | |
0ed28836 | 650 | (void) snprintf(path, sizeof path, "%s/%s", name, dp->d_name); |
8efc0c15 | 651 | vect[0] = path; |
652 | source(1, vect); | |
653 | } | |
5260325f | 654 | (void) closedir(dirp); |
3189621b | 655 | (void) atomicio(write, remout, "E\n", 2); |
5260325f | 656 | (void) response(); |
8efc0c15 | 657 | } |
658 | ||
6ea3c52a | 659 | void |
660 | bwlimit(int amount) | |
661 | { | |
662 | static struct timeval bwstart, bwend; | |
663 | static int lamt, thresh = 16384; | |
664 | u_int64_t wait; | |
665 | struct timespec ts, rm; | |
666 | ||
667 | if (!timerisset(&bwstart)) { | |
668 | gettimeofday(&bwstart, NULL); | |
669 | return; | |
670 | } | |
671 | ||
672 | lamt += amount; | |
673 | if (lamt < thresh) | |
674 | return; | |
675 | ||
676 | gettimeofday(&bwend, NULL); | |
677 | timersub(&bwend, &bwstart, &bwend); | |
678 | if (!timerisset(&bwend)) | |
679 | return; | |
680 | ||
681 | lamt *= 8; | |
eb180c2e | 682 | wait = (double)1000000L * lamt / limitbw; |
6ea3c52a | 683 | |
684 | bwstart.tv_sec = wait / 1000000L; | |
685 | bwstart.tv_usec = wait % 1000000L; | |
686 | ||
687 | if (timercmp(&bwstart, &bwend, >)) { | |
688 | timersub(&bwstart, &bwend, &bwend); | |
689 | ||
690 | /* Adjust the wait time */ | |
691 | if (bwend.tv_sec) { | |
692 | thresh /= 2; | |
693 | if (thresh < 2048) | |
694 | thresh = 2048; | |
695 | } else if (bwend.tv_usec < 100) { | |
696 | thresh *= 2; | |
697 | if (thresh > 32768) | |
698 | thresh = 32768; | |
699 | } | |
700 | ||
701 | TIMEVAL_TO_TIMESPEC(&bwend, &ts); | |
702 | while (nanosleep(&ts, &rm) == -1) { | |
703 | if (errno != EINTR) | |
704 | break; | |
705 | ts = rm; | |
706 | } | |
707 | } | |
708 | ||
709 | lamt = 0; | |
710 | gettimeofday(&bwstart, NULL); | |
711 | } | |
712 | ||
8efc0c15 | 713 | void |
cf3248b8 | 714 | sink(int argc, char **argv) |
8efc0c15 | 715 | { |
716 | static BUF buffer; | |
717 | struct stat stb; | |
5260325f | 718 | enum { |
719 | YES, NO, DISPLAYED | |
720 | } wrerr; | |
8efc0c15 | 721 | BUF *bp; |
722 | off_t i, j; | |
723 | int amt, count, exists, first, mask, mode, ofd, omode; | |
b65c3807 | 724 | off_t size, statbytes; |
14a9a859 | 725 | int setimes, targisdir, wrerrno = 0; |
8efc0c15 | 726 | char ch, *cp, *np, *targ, *why, *vect[1], buf[2048]; |
188adeb2 | 727 | struct timeval tv[2]; |
8efc0c15 | 728 | |
36967a16 | 729 | #define atime tv[0] |
730 | #define mtime tv[1] | |
cb220a93 | 731 | #define SCREWUP(str) do { why = str; goto screwup; } while (0) |
8efc0c15 | 732 | |
733 | setimes = targisdir = 0; | |
734 | mask = umask(0); | |
735 | if (!pflag) | |
5260325f | 736 | (void) umask(mask); |
8efc0c15 | 737 | if (argc != 1) { |
738 | run_err("ambiguous target"); | |
739 | exit(1); | |
740 | } | |
741 | targ = *argv; | |
742 | if (targetshouldbedirectory) | |
743 | verifydir(targ); | |
5260325f | 744 | |
3189621b | 745 | (void) atomicio(write, remout, "", 1); |
8efc0c15 | 746 | if (stat(targ, &stb) == 0 && S_ISDIR(stb.st_mode)) |
747 | targisdir = 1; | |
748 | for (first = 1;; first = 0) { | |
749 | cp = buf; | |
1d1ffb87 | 750 | if (atomicio(read, remin, cp, 1) <= 0) |
8efc0c15 | 751 | return; |
752 | if (*cp++ == '\n') | |
753 | SCREWUP("unexpected <newline>"); | |
754 | do { | |
1d1ffb87 | 755 | if (atomicio(read, remin, &ch, sizeof(ch)) != sizeof(ch)) |
8efc0c15 | 756 | SCREWUP("lost connection"); |
757 | *cp++ = ch; | |
758 | } while (cp < &buf[sizeof(buf) - 1] && ch != '\n'); | |
759 | *cp = 0; | |
760 | ||
761 | if (buf[0] == '\01' || buf[0] == '\02') { | |
762 | if (iamremote == 0) | |
3189621b | 763 | (void) atomicio(write, STDERR_FILENO, |
71c0d06a | 764 | buf + 1, strlen(buf + 1)); |
8efc0c15 | 765 | if (buf[0] == '\02') |
766 | exit(1); | |
767 | ++errs; | |
768 | continue; | |
769 | } | |
770 | if (buf[0] == 'E') { | |
3189621b | 771 | (void) atomicio(write, remout, "", 1); |
8efc0c15 | 772 | return; |
773 | } | |
8efc0c15 | 774 | if (ch == '\n') |
775 | *--cp = 0; | |
776 | ||
8efc0c15 | 777 | cp = buf; |
778 | if (*cp == 'T') { | |
779 | setimes++; | |
780 | cp++; | |
36967a16 | 781 | mtime.tv_sec = strtol(cp, &cp, 10); |
782 | if (!cp || *cp++ != ' ') | |
8efc0c15 | 783 | SCREWUP("mtime.sec not delimited"); |
36967a16 | 784 | mtime.tv_usec = strtol(cp, &cp, 10); |
785 | if (!cp || *cp++ != ' ') | |
8efc0c15 | 786 | SCREWUP("mtime.usec not delimited"); |
36967a16 | 787 | atime.tv_sec = strtol(cp, &cp, 10); |
788 | if (!cp || *cp++ != ' ') | |
8efc0c15 | 789 | SCREWUP("atime.sec not delimited"); |
36967a16 | 790 | atime.tv_usec = strtol(cp, &cp, 10); |
791 | if (!cp || *cp++ != '\0') | |
8efc0c15 | 792 | SCREWUP("atime.usec not delimited"); |
3189621b | 793 | (void) atomicio(write, remout, "", 1); |
8efc0c15 | 794 | continue; |
795 | } | |
796 | if (*cp != 'C' && *cp != 'D') { | |
797 | /* | |
798 | * Check for the case "rcp remote:foo\* local:bar". | |
799 | * In this case, the line "No match." can be returned | |
800 | * by the shell before the rcp command on the remote is | |
801 | * executed so the ^Aerror_message convention isn't | |
802 | * followed. | |
803 | */ | |
804 | if (first) { | |
805 | run_err("%s", cp); | |
806 | exit(1); | |
807 | } | |
808 | SCREWUP("expected control record"); | |
809 | } | |
810 | mode = 0; | |
811 | for (++cp; cp < buf + 5; cp++) { | |
812 | if (*cp < '0' || *cp > '7') | |
813 | SCREWUP("bad mode"); | |
814 | mode = (mode << 3) | (*cp - '0'); | |
815 | } | |
816 | if (*cp++ != ' ') | |
817 | SCREWUP("mode not delimited"); | |
818 | ||
e5ff6ecf | 819 | for (size = 0; isdigit(*cp);) |
8efc0c15 | 820 | size = size * 10 + (*cp++ - '0'); |
821 | if (*cp++ != ' ') | |
822 | SCREWUP("size not delimited"); | |
823 | if (targisdir) { | |
824 | static char *namebuf; | |
825 | static int cursize; | |
826 | size_t need; | |
827 | ||
828 | need = strlen(targ) + strlen(cp) + 250; | |
0ed28836 | 829 | if (need > cursize) { |
830 | if (namebuf) | |
831 | xfree(namebuf); | |
5260325f | 832 | namebuf = xmalloc(need); |
0ed28836 | 833 | cursize = need; |
834 | } | |
835 | (void) snprintf(namebuf, need, "%s%s%s", targ, | |
39f9599a | 836 | strcmp(targ, "/") ? "/" : "", cp); |
8efc0c15 | 837 | np = namebuf; |
838 | } else | |
839 | np = targ; | |
840 | curfile = cp; | |
841 | exists = stat(np, &stb) == 0; | |
842 | if (buf[0] == 'D') { | |
843 | int mod_flag = pflag; | |
844 | if (exists) { | |
845 | if (!S_ISDIR(stb.st_mode)) { | |
846 | errno = ENOTDIR; | |
847 | goto bad; | |
848 | } | |
849 | if (pflag) | |
5260325f | 850 | (void) chmod(np, mode); |
8efc0c15 | 851 | } else { |
5260325f | 852 | /* Handle copying from a read-only |
853 | directory */ | |
8efc0c15 | 854 | mod_flag = 1; |
855 | if (mkdir(np, mode | S_IRWXU) < 0) | |
856 | goto bad; | |
857 | } | |
5c470997 | 858 | vect[0] = xstrdup(np); |
8efc0c15 | 859 | sink(1, vect); |
860 | if (setimes) { | |
861 | setimes = 0; | |
e68225b2 | 862 | if (utimes(vect[0], tv) < 0) |
5260325f | 863 | run_err("%s: set times: %s", |
e68225b2 | 864 | vect[0], strerror(errno)); |
8efc0c15 | 865 | } |
866 | if (mod_flag) | |
e68225b2 | 867 | (void) chmod(vect[0], mode); |
868 | if (vect[0]) | |
869 | xfree(vect[0]); | |
8efc0c15 | 870 | continue; |
871 | } | |
872 | omode = mode; | |
873 | mode |= S_IWRITE; | |
3e4fc5f9 | 874 | if ((ofd = open(np, O_WRONLY|O_CREAT, mode)) < 0) { |
8efc0c15 | 875 | bad: run_err("%s: %s", np, strerror(errno)); |
876 | continue; | |
877 | } | |
3189621b | 878 | (void) atomicio(write, remout, "", 1); |
8efc0c15 | 879 | if ((bp = allocbuf(&buffer, ofd, 4096)) == NULL) { |
5260325f | 880 | (void) close(ofd); |
8efc0c15 | 881 | continue; |
882 | } | |
883 | cp = bp->buf; | |
884 | wrerr = NO; | |
885 | ||
8efc0c15 | 886 | statbytes = 0; |
b65c3807 | 887 | if (showprogress) |
888 | start_progress_meter(curfile, size, &statbytes); | |
8efc0c15 | 889 | for (count = i = 0; i < size; i += 4096) { |
890 | amt = 4096; | |
891 | if (i + amt > size) | |
892 | amt = size - i; | |
893 | count += amt; | |
894 | do { | |
a22aff1f | 895 | j = read(remin, cp, amt); |
0b2988ca | 896 | if (j == -1 && (errno == EINTR || |
897 | errno == EAGAIN)) { | |
a22aff1f | 898 | continue; |
899 | } else if (j <= 0) { | |
8efc0c15 | 900 | run_err("%s", j ? strerror(errno) : |
e5ff6ecf | 901 | "dropped connection"); |
8efc0c15 | 902 | exit(1); |
903 | } | |
904 | amt -= j; | |
905 | cp += j; | |
5260325f | 906 | statbytes += j; |
8efc0c15 | 907 | } while (amt > 0); |
6ea3c52a | 908 | |
eb180c2e | 909 | if (limitbw) |
6ea3c52a | 910 | bwlimit(4096); |
911 | ||
8efc0c15 | 912 | if (count == bp->cnt) { |
913 | /* Keep reading so we stay sync'd up. */ | |
914 | if (wrerr == NO) { | |
1d1ffb87 | 915 | j = atomicio(write, ofd, bp->buf, count); |
8efc0c15 | 916 | if (j != count) { |
917 | wrerr = YES; | |
5260325f | 918 | wrerrno = j >= 0 ? EIO : errno; |
8efc0c15 | 919 | } |
920 | } | |
921 | count = 0; | |
922 | cp = bp->buf; | |
923 | } | |
924 | } | |
925 | if (showprogress) | |
b65c3807 | 926 | stop_progress_meter(); |
8efc0c15 | 927 | if (count != 0 && wrerr == NO && |
1d1ffb87 | 928 | (j = atomicio(write, ofd, bp->buf, count)) != count) { |
8efc0c15 | 929 | wrerr = YES; |
5260325f | 930 | wrerrno = j >= 0 ? EIO : errno; |
8efc0c15 | 931 | } |
25a6efd8 | 932 | if (wrerr == NO && ftruncate(ofd, size) != 0) { |
8efc0c15 | 933 | run_err("%s: truncate: %s", np, strerror(errno)); |
934 | wrerr = DISPLAYED; | |
935 | } | |
8efc0c15 | 936 | if (pflag) { |
937 | if (exists || omode != mode) | |
77bb0bca | 938 | #ifdef HAVE_FCHMOD |
8efc0c15 | 939 | if (fchmod(ofd, omode)) |
77bb0bca | 940 | #else /* HAVE_FCHMOD */ |
941 | if (chmod(np, omode)) | |
942 | #endif /* HAVE_FCHMOD */ | |
8efc0c15 | 943 | run_err("%s: set mode: %s", |
e5ff6ecf | 944 | np, strerror(errno)); |
8efc0c15 | 945 | } else { |
946 | if (!exists && omode != mode) | |
77bb0bca | 947 | #ifdef HAVE_FCHMOD |
8efc0c15 | 948 | if (fchmod(ofd, omode & ~mask)) |
77bb0bca | 949 | #else /* HAVE_FCHMOD */ |
950 | if (chmod(np, omode & ~mask)) | |
951 | #endif /* HAVE_FCHMOD */ | |
8efc0c15 | 952 | run_err("%s: set mode: %s", |
e5ff6ecf | 953 | np, strerror(errno)); |
8efc0c15 | 954 | } |
704b1659 | 955 | if (close(ofd) == -1) { |
956 | wrerr = YES; | |
957 | wrerrno = errno; | |
958 | } | |
5260325f | 959 | (void) response(); |
8efc0c15 | 960 | if (setimes && wrerr == NO) { |
961 | setimes = 0; | |
188adeb2 | 962 | if (utimes(np, tv) < 0) { |
8efc0c15 | 963 | run_err("%s: set times: %s", |
e5ff6ecf | 964 | np, strerror(errno)); |
8efc0c15 | 965 | wrerr = DISPLAYED; |
966 | } | |
967 | } | |
5260325f | 968 | switch (wrerr) { |
8efc0c15 | 969 | case YES: |
970 | run_err("%s: %s", np, strerror(wrerrno)); | |
971 | break; | |
972 | case NO: | |
3189621b | 973 | (void) atomicio(write, remout, "", 1); |
8efc0c15 | 974 | break; |
975 | case DISPLAYED: | |
976 | break; | |
977 | } | |
978 | } | |
979 | screwup: | |
980 | run_err("protocol error: %s", why); | |
981 | exit(1); | |
982 | } | |
983 | ||
984 | int | |
d5bb9418 | 985 | response(void) |
8efc0c15 | 986 | { |
987 | char ch, *cp, resp, rbuf[2048]; | |
988 | ||
1d1ffb87 | 989 | if (atomicio(read, remin, &resp, sizeof(resp)) != sizeof(resp)) |
8efc0c15 | 990 | lostconn(0); |
991 | ||
992 | cp = rbuf; | |
5260325f | 993 | switch (resp) { |
994 | case 0: /* ok */ | |
8efc0c15 | 995 | return (0); |
996 | default: | |
997 | *cp++ = resp; | |
998 | /* FALLTHROUGH */ | |
5260325f | 999 | case 1: /* error, followed by error msg */ |
1000 | case 2: /* fatal error, "" */ | |
8efc0c15 | 1001 | do { |
1d1ffb87 | 1002 | if (atomicio(read, remin, &ch, sizeof(ch)) != sizeof(ch)) |
8efc0c15 | 1003 | lostconn(0); |
1004 | *cp++ = ch; | |
1005 | } while (cp < &rbuf[sizeof(rbuf) - 1] && ch != '\n'); | |
1006 | ||
1007 | if (!iamremote) | |
3189621b | 1008 | (void) atomicio(write, STDERR_FILENO, rbuf, cp - rbuf); |
8efc0c15 | 1009 | ++errs; |
1010 | if (resp == 1) | |
1011 | return (-1); | |
1012 | exit(1); | |
1013 | } | |
1014 | /* NOTREACHED */ | |
1015 | } | |
1016 | ||
1017 | void | |
d5bb9418 | 1018 | usage(void) |
8efc0c15 | 1019 | { |
f1278af7 | 1020 | (void) fprintf(stderr, |
e6b15f23 | 1021 | "usage: scp [-pqrvBC1246] [-F config] [-S program] [-P port]\n" |
6ea3c52a | 1022 | " [-c cipher] [-i identity] [-l limit] [-o option]\n" |
3015d321 | 1023 | " [[user@]host1:]file1 [...] [[user@]host2:]file2\n"); |
8efc0c15 | 1024 | exit(1); |
1025 | } | |
1026 | ||
1027 | void | |
5260325f | 1028 | run_err(const char *fmt,...) |
8efc0c15 | 1029 | { |
1030 | static FILE *fp; | |
1031 | va_list ap; | |
8efc0c15 | 1032 | |
1033 | ++errs; | |
1034 | if (fp == NULL && !(fp = fdopen(remout, "w"))) | |
1035 | return; | |
5260325f | 1036 | (void) fprintf(fp, "%c", 0x01); |
1037 | (void) fprintf(fp, "scp: "); | |
b92964b7 | 1038 | va_start(ap, fmt); |
5260325f | 1039 | (void) vfprintf(fp, fmt, ap); |
b92964b7 | 1040 | va_end(ap); |
5260325f | 1041 | (void) fprintf(fp, "\n"); |
1042 | (void) fflush(fp); | |
1043 | ||
1044 | if (!iamremote) { | |
b92964b7 | 1045 | va_start(ap, fmt); |
5260325f | 1046 | vfprintf(stderr, fmt, ap); |
b92964b7 | 1047 | va_end(ap); |
5260325f | 1048 | fprintf(stderr, "\n"); |
1049 | } | |
8efc0c15 | 1050 | } |
1051 | ||
8efc0c15 | 1052 | void |
cf3248b8 | 1053 | verifydir(char *cp) |
8efc0c15 | 1054 | { |
1055 | struct stat stb; | |
1056 | ||
1057 | if (!stat(cp, &stb)) { | |
1058 | if (S_ISDIR(stb.st_mode)) | |
1059 | return; | |
1060 | errno = ENOTDIR; | |
1061 | } | |
1062 | run_err("%s: %s", cp, strerror(errno)); | |
1063 | exit(1); | |
1064 | } | |
1065 | ||
1066 | int | |
cf3248b8 | 1067 | okname(char *cp0) |
8efc0c15 | 1068 | { |
1069 | int c; | |
1070 | char *cp; | |
1071 | ||
1072 | cp = cp0; | |
1073 | do { | |
cb220a93 | 1074 | c = (int)*cp; |
8efc0c15 | 1075 | if (c & 0200) |
1076 | goto bad; | |
0ec7661a | 1077 | if (!isalpha(c) && !isdigit(c)) { |
1078 | switch (c) { | |
1079 | case '\'': | |
1080 | case '"': | |
1081 | case '`': | |
1082 | case ' ': | |
1083 | case '#': | |
1084 | goto bad; | |
1085 | default: | |
1086 | break; | |
1087 | } | |
1088 | } | |
8efc0c15 | 1089 | } while (*++cp); |
1090 | return (1); | |
1091 | ||
c8d54615 | 1092 | bad: fprintf(stderr, "%s: invalid user name\n", cp0); |
8efc0c15 | 1093 | return (0); |
1094 | } | |
1095 | ||
1096 | BUF * | |
cf3248b8 | 1097 | allocbuf(BUF *bp, int fd, int blksize) |
8efc0c15 | 1098 | { |
1099 | size_t size; | |
98a7c37b | 1100 | #ifdef HAVE_STRUCT_STAT_ST_BLKSIZE |
8efc0c15 | 1101 | struct stat stb; |
1102 | ||
1103 | if (fstat(fd, &stb) < 0) { | |
1104 | run_err("fstat: %s", strerror(errno)); | |
1105 | return (0); | |
1106 | } | |
a0a14bcd | 1107 | size = roundup(stb.st_blksize, blksize); |
1108 | if (size == 0) | |
5260325f | 1109 | size = blksize; |
98a7c37b | 1110 | #else /* HAVE_STRUCT_STAT_ST_BLKSIZE */ |
2b87da3b | 1111 | size = blksize; |
98a7c37b | 1112 | #endif /* HAVE_STRUCT_STAT_ST_BLKSIZE */ |
8efc0c15 | 1113 | if (bp->cnt >= size) |
1114 | return (bp); | |
5260325f | 1115 | if (bp->buf == NULL) |
1116 | bp->buf = xmalloc(size); | |
1117 | else | |
1118 | bp->buf = xrealloc(bp->buf, size); | |
46660a9e | 1119 | memset(bp->buf, 0, size); |
8efc0c15 | 1120 | bp->cnt = size; |
1121 | return (bp); | |
1122 | } | |
1123 | ||
1124 | void | |
cf3248b8 | 1125 | lostconn(int signo) |
8efc0c15 | 1126 | { |
1127 | if (!iamremote) | |
08c260ea | 1128 | write(STDERR_FILENO, "lost connection\n", 16); |
1129 | if (signo) | |
1130 | _exit(1); | |
1131 | else | |
1132 | exit(1); | |
8efc0c15 | 1133 | } |