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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" | |
68e39d38 | 74 | RCSID("$OpenBSD: scp.c,v 1.131 2006/02/08 23:51:24 stevesk Exp $"); |
75 | ||
76 | #include <dirent.h> | |
8efc0c15 | 77 | |
8efc0c15 | 78 | #include "xmalloc.h" |
42f11eb2 | 79 | #include "atomicio.h" |
80 | #include "pathnames.h" | |
81 | #include "log.h" | |
36a358ca | 82 | #include "misc.h" |
b65c3807 | 83 | #include "progressmeter.h" |
8efc0c15 | 84 | |
260d427b | 85 | extern char *__progname; |
260d427b | 86 | |
6ea3c52a | 87 | void bwlimit(int); |
88 | ||
8a624ebf | 89 | /* Struct for addargs */ |
90 | arglist args; | |
94ec8c6b | 91 | |
6ea3c52a | 92 | /* Bandwidth limit */ |
10adbb52 | 93 | off_t limit_rate = 0; |
6ea3c52a | 94 | |
8efc0c15 | 95 | /* Name of current file being transferred. */ |
96 | char *curfile; | |
97 | ||
98 | /* This is set to non-zero to enable verbose mode. */ | |
5260325f | 99 | int verbose_mode = 0; |
8efc0c15 | 100 | |
8efc0c15 | 101 | /* This is set to zero if the progressmeter is not desired. */ |
102 | int showprogress = 1; | |
103 | ||
2e73a022 | 104 | /* This is the program to execute for the secured connection. ("ssh" or -S) */ |
42f11eb2 | 105 | char *ssh_program = _PATH_SSH_PROGRAM; |
2e73a022 | 106 | |
252d1a24 | 107 | /* This is used to store the pid of ssh_program */ |
0f764b2f | 108 | pid_t do_cmd_pid = -1; |
109 | ||
110 | static void | |
111 | killchild(int signo) | |
112 | { | |
3c03ad3f | 113 | if (do_cmd_pid > 1) { |
8f4ab41b | 114 | kill(do_cmd_pid, signo ? signo : SIGTERM); |
3c03ad3f | 115 | waitpid(do_cmd_pid, NULL, 0); |
116 | } | |
0f764b2f | 117 | |
8f4ab41b | 118 | if (signo) |
119 | _exit(1); | |
120 | exit(1); | |
0f764b2f | 121 | } |
252d1a24 | 122 | |
4116f5c0 | 123 | static int |
124 | do_local_cmd(arglist *a) | |
125 | { | |
126 | u_int i; | |
127 | int status; | |
128 | pid_t pid; | |
129 | ||
130 | if (a->num == 0) | |
131 | fatal("do_local_cmd: no arguments"); | |
132 | ||
133 | if (verbose_mode) { | |
134 | fprintf(stderr, "Executing:"); | |
135 | for (i = 0; i < a->num; i++) | |
136 | fprintf(stderr, " %s", a->list[i]); | |
137 | fprintf(stderr, "\n"); | |
138 | } | |
139 | if ((pid = fork()) == -1) | |
140 | fatal("do_local_cmd: fork: %s", strerror(errno)); | |
141 | ||
142 | if (pid == 0) { | |
143 | execvp(a->list[0], a->list); | |
144 | perror(a->list[0]); | |
145 | exit(1); | |
146 | } | |
147 | ||
148 | do_cmd_pid = pid; | |
149 | signal(SIGTERM, killchild); | |
150 | signal(SIGINT, killchild); | |
151 | signal(SIGHUP, killchild); | |
152 | ||
153 | while (waitpid(pid, &status, 0) == -1) | |
154 | if (errno != EINTR) | |
155 | fatal("do_local_cmd: waitpid: %s", strerror(errno)); | |
156 | ||
157 | do_cmd_pid = -1; | |
158 | ||
159 | if (!WIFEXITED(status) || WEXITSTATUS(status) != 0) | |
160 | return (-1); | |
161 | ||
162 | return (0); | |
163 | } | |
164 | ||
aa3378df | 165 | /* |
166 | * This function executes the given command as the specified user on the | |
167 | * given host. This returns < 0 if execution fails, and >= 0 otherwise. This | |
168 | * assigns the input and output file descriptors on success. | |
169 | */ | |
8efc0c15 | 170 | |
6ae2364d | 171 | int |
2e73a022 | 172 | do_cmd(char *host, char *remuser, char *cmd, int *fdin, int *fdout, int argc) |
8efc0c15 | 173 | { |
5260325f | 174 | int pin[2], pout[2], reserved[2]; |
175 | ||
176 | if (verbose_mode) | |
0b2988ca | 177 | fprintf(stderr, |
178 | "Executing: program %s host %s, user %s, command %s\n", | |
179 | ssh_program, host, | |
180 | remuser ? remuser : "(unspecified)", cmd); | |
5260325f | 181 | |
aa3378df | 182 | /* |
183 | * Reserve two descriptors so that the real pipes won't get | |
184 | * descriptors 0 and 1 because that will screw up dup2 below. | |
185 | */ | |
5260325f | 186 | pipe(reserved); |
187 | ||
188 | /* Create a socket pair for communicating with ssh. */ | |
189 | if (pipe(pin) < 0) | |
190 | fatal("pipe: %s", strerror(errno)); | |
191 | if (pipe(pout) < 0) | |
192 | fatal("pipe: %s", strerror(errno)); | |
193 | ||
194 | /* Free the reserved descriptors. */ | |
195 | close(reserved[0]); | |
196 | close(reserved[1]); | |
197 | ||
1fb23629 | 198 | /* Fork a child to execute the command on the remote host using ssh. */ |
252d1a24 | 199 | do_cmd_pid = fork(); |
200 | if (do_cmd_pid == 0) { | |
5260325f | 201 | /* Child. */ |
202 | close(pin[1]); | |
203 | close(pout[0]); | |
204 | dup2(pin[0], 0); | |
205 | dup2(pout[1], 1); | |
206 | close(pin[0]); | |
207 | close(pout[1]); | |
208 | ||
4116f5c0 | 209 | replacearg(&args, 0, "%s", ssh_program); |
94ec8c6b | 210 | if (remuser != NULL) |
8a624ebf | 211 | addargs(&args, "-l%s", remuser); |
212 | addargs(&args, "%s", host); | |
213 | addargs(&args, "%s", cmd); | |
5260325f | 214 | |
94ec8c6b | 215 | execvp(ssh_program, args.list); |
2e73a022 | 216 | perror(ssh_program); |
5260325f | 217 | exit(1); |
252d1a24 | 218 | } else if (do_cmd_pid == -1) { |
219 | fatal("fork: %s", strerror(errno)); | |
8efc0c15 | 220 | } |
5260325f | 221 | /* Parent. Close the other side, and return the local side. */ |
222 | close(pin[0]); | |
223 | *fdout = pin[1]; | |
224 | close(pout[1]); | |
225 | *fdin = pout[0]; | |
0f764b2f | 226 | signal(SIGTERM, killchild); |
227 | signal(SIGINT, killchild); | |
228 | signal(SIGHUP, killchild); | |
5260325f | 229 | return 0; |
8efc0c15 | 230 | } |
231 | ||
8efc0c15 | 232 | typedef struct { |
2ceb8101 | 233 | size_t cnt; |
8efc0c15 | 234 | char *buf; |
235 | } BUF; | |
236 | ||
5260325f | 237 | BUF *allocbuf(BUF *, int, int); |
5260325f | 238 | void lostconn(int); |
239 | void nospace(void); | |
240 | int okname(char *); | |
241 | void run_err(const char *,...); | |
242 | void verifydir(char *); | |
8efc0c15 | 243 | |
8efc0c15 | 244 | struct passwd *pwd; |
5260325f | 245 | uid_t userid; |
8efc0c15 | 246 | int errs, remin, remout; |
247 | int pflag, iamremote, iamrecursive, targetshouldbedirectory; | |
248 | ||
249 | #define CMDNEEDS 64 | |
250 | char cmd[CMDNEEDS]; /* must hold "rcp -r -p -d\0" */ | |
251 | ||
5260325f | 252 | int response(void); |
253 | void rsource(char *, struct stat *); | |
254 | void sink(int, char *[]); | |
255 | void source(int, char *[]); | |
256 | void tolocal(int, char *[]); | |
257 | void toremote(char *, int, char *[]); | |
258 | void usage(void); | |
8efc0c15 | 259 | |
260 | int | |
cf3248b8 | 261 | main(int argc, char **argv) |
8efc0c15 | 262 | { |
252d1a24 | 263 | int ch, fflag, tflag, status; |
6ea3c52a | 264 | double speed; |
265 | char *targ, *endp; | |
8efc0c15 | 266 | extern char *optarg; |
267 | extern int optind; | |
268 | ||
fd6168c1 | 269 | /* Ensure that fds 0, 1 and 2 are open or directed to /dev/null */ |
270 | sanitise_stdfd(); | |
271 | ||
fda04d7d | 272 | __progname = ssh_get_progname(argv[0]); |
260d427b | 273 | |
4116f5c0 | 274 | memset(&args, '\0', sizeof(args)); |
94ec8c6b | 275 | args.list = NULL; |
4116f5c0 | 276 | addargs(&args, "%s", ssh_program); |
8a624ebf | 277 | addargs(&args, "-x"); |
3a222388 | 278 | addargs(&args, "-oForwardAgent no"); |
d20f3c9e | 279 | addargs(&args, "-oPermitLocalCommand no"); |
e1c5bfaf | 280 | addargs(&args, "-oClearAllForwardings yes"); |
94ec8c6b | 281 | |
8efc0c15 | 282 | fflag = tflag = 0; |
e6b15f23 | 283 | while ((ch = getopt(argc, argv, "dfl:prtvBCc:i:P:q1246S:o:F:")) != -1) |
5260325f | 284 | switch (ch) { |
285 | /* User-visible flags. */ | |
e6b15f23 | 286 | case '1': |
287 | case '2': | |
48e671d5 | 288 | case '4': |
48e671d5 | 289 | case '6': |
94ec8c6b | 290 | case 'C': |
8a624ebf | 291 | addargs(&args, "-%c", ch); |
48e671d5 | 292 | break; |
94ec8c6b | 293 | case 'o': |
294 | case 'c': | |
295 | case 'i': | |
f1278af7 | 296 | case 'F': |
8a624ebf | 297 | addargs(&args, "-%c%s", ch, optarg); |
8efc0c15 | 298 | break; |
299 | case 'P': | |
8a624ebf | 300 | addargs(&args, "-p%s", optarg); |
94ec8c6b | 301 | break; |
302 | case 'B': | |
8a624ebf | 303 | addargs(&args, "-oBatchmode yes"); |
94ec8c6b | 304 | break; |
6ea3c52a | 305 | case 'l': |
306 | speed = strtod(optarg, &endp); | |
307 | if (speed <= 0 || *endp != '\0') | |
308 | usage(); | |
10adbb52 | 309 | limit_rate = speed * 1024; |
6ea3c52a | 310 | break; |
94ec8c6b | 311 | case 'p': |
312 | pflag = 1; | |
5260325f | 313 | break; |
8efc0c15 | 314 | case 'r': |
315 | iamrecursive = 1; | |
316 | break; | |
2e73a022 | 317 | case 'S': |
94ec8c6b | 318 | ssh_program = xstrdup(optarg); |
319 | break; | |
320 | case 'v': | |
4fc334a2 | 321 | addargs(&args, "-v"); |
94ec8c6b | 322 | verbose_mode = 1; |
323 | break; | |
324 | case 'q': | |
15c8e3fd | 325 | addargs(&args, "-q"); |
94ec8c6b | 326 | showprogress = 0; |
2e73a022 | 327 | break; |
328 | ||
5260325f | 329 | /* Server options. */ |
8efc0c15 | 330 | case 'd': |
331 | targetshouldbedirectory = 1; | |
332 | break; | |
5260325f | 333 | case 'f': /* "from" */ |
8efc0c15 | 334 | iamremote = 1; |
335 | fflag = 1; | |
336 | break; | |
5260325f | 337 | case 't': /* "to" */ |
8efc0c15 | 338 | iamremote = 1; |
339 | tflag = 1; | |
fe56c12b | 340 | #ifdef HAVE_CYGWIN |
341 | setmode(0, O_BINARY); | |
342 | #endif | |
8efc0c15 | 343 | break; |
8efc0c15 | 344 | default: |
345 | usage(); | |
346 | } | |
347 | argc -= optind; | |
348 | argv += optind; | |
349 | ||
350 | if ((pwd = getpwuid(userid = getuid())) == NULL) | |
261bd618 | 351 | fatal("unknown user %u", (u_int) userid); |
8efc0c15 | 352 | |
5260325f | 353 | if (!isatty(STDERR_FILENO)) |
8efc0c15 | 354 | showprogress = 0; |
355 | ||
356 | remin = STDIN_FILENO; | |
357 | remout = STDOUT_FILENO; | |
358 | ||
2b87da3b | 359 | if (fflag) { |
5260325f | 360 | /* Follow "protocol", send data. */ |
361 | (void) response(); | |
8efc0c15 | 362 | source(argc, argv); |
363 | exit(errs != 0); | |
364 | } | |
5260325f | 365 | if (tflag) { |
366 | /* Receive data. */ | |
8efc0c15 | 367 | sink(argc, argv); |
368 | exit(errs != 0); | |
369 | } | |
8efc0c15 | 370 | if (argc < 2) |
371 | usage(); | |
372 | if (argc > 2) | |
373 | targetshouldbedirectory = 1; | |
374 | ||
375 | remin = remout = -1; | |
252d1a24 | 376 | do_cmd_pid = -1; |
8efc0c15 | 377 | /* Command to be executed on remote system using "ssh". */ |
0ed28836 | 378 | (void) snprintf(cmd, sizeof cmd, "scp%s%s%s%s", |
379 | verbose_mode ? " -v" : "", | |
2e73a022 | 380 | iamrecursive ? " -r" : "", pflag ? " -p" : "", |
381 | targetshouldbedirectory ? " -d" : ""); | |
8efc0c15 | 382 | |
5260325f | 383 | (void) signal(SIGPIPE, lostconn); |
8efc0c15 | 384 | |
385 | if ((targ = colon(argv[argc - 1]))) /* Dest is remote host. */ | |
386 | toremote(targ, argc, argv); | |
387 | else { | |
8efc0c15 | 388 | if (targetshouldbedirectory) |
389 | verifydir(argv[argc - 1]); | |
16e8ab10 | 390 | tolocal(argc, argv); /* Dest is local host. */ |
8efc0c15 | 391 | } |
252d1a24 | 392 | /* |
393 | * Finally check the exit status of the ssh process, if one was forked | |
394 | * and no error has occured yet | |
395 | */ | |
396 | if (do_cmd_pid != -1 && errs == 0) { | |
397 | if (remin != -1) | |
398 | (void) close(remin); | |
399 | if (remout != -1) | |
400 | (void) close(remout); | |
401 | if (waitpid(do_cmd_pid, &status, 0) == -1) | |
402 | errs = 1; | |
403 | else { | |
404 | if (!WIFEXITED(status) || WEXITSTATUS(status) != 0) | |
405 | errs = 1; | |
406 | } | |
407 | } | |
8efc0c15 | 408 | exit(errs != 0); |
409 | } | |
410 | ||
411 | void | |
cf3248b8 | 412 | toremote(char *targ, int argc, char **argv) |
8efc0c15 | 413 | { |
414 | int i, len; | |
99dfaccc | 415 | char *bp, *host, *src, *suser, *thost, *tuser, *arg; |
4116f5c0 | 416 | arglist alist; |
417 | ||
418 | memset(&alist, '\0', sizeof(alist)); | |
419 | alist.list = NULL; | |
8efc0c15 | 420 | |
421 | *targ++ = 0; | |
422 | if (*targ == 0) | |
423 | targ = "."; | |
424 | ||
ae0d2f42 | 425 | arg = xstrdup(argv[argc - 1]); |
99dfaccc | 426 | if ((thost = strrchr(arg, '@'))) { |
8efc0c15 | 427 | /* user@host */ |
428 | *thost++ = 0; | |
99dfaccc | 429 | tuser = arg; |
8efc0c15 | 430 | if (*tuser == '\0') |
431 | tuser = NULL; | |
8efc0c15 | 432 | } else { |
99dfaccc | 433 | thost = arg; |
8efc0c15 | 434 | tuser = NULL; |
435 | } | |
436 | ||
4116f5c0 | 437 | if (tuser != NULL && !okname(tuser)) { |
438 | xfree(arg); | |
439 | return; | |
440 | } | |
441 | ||
8efc0c15 | 442 | for (i = 0; i < argc - 1; i++) { |
443 | src = colon(argv[i]); | |
5260325f | 444 | if (src) { /* remote to remote */ |
4116f5c0 | 445 | freeargs(&alist); |
446 | addargs(&alist, "%s", ssh_program); | |
447 | if (verbose_mode) | |
448 | addargs(&alist, "-v"); | |
449 | addargs(&alist, "-x"); | |
450 | addargs(&alist, "-oClearAllForwardings yes"); | |
451 | addargs(&alist, "-n"); | |
452 | ||
8efc0c15 | 453 | *src++ = 0; |
454 | if (*src == 0) | |
455 | src = "."; | |
15748b4d | 456 | host = strrchr(argv[i], '@'); |
4116f5c0 | 457 | |
8efc0c15 | 458 | if (host) { |
459 | *host++ = 0; | |
48e671d5 | 460 | host = cleanhostname(host); |
8efc0c15 | 461 | suser = argv[i]; |
462 | if (*suser == '\0') | |
463 | suser = pwd->pw_name; | |
4116f5c0 | 464 | else if (!okname(suser)) |
0ec7661a | 465 | continue; |
4116f5c0 | 466 | addargs(&alist, "-l"); |
467 | addargs(&alist, "%s", suser); | |
48e671d5 | 468 | } else { |
469 | host = cleanhostname(argv[i]); | |
48e671d5 | 470 | } |
4116f5c0 | 471 | addargs(&alist, "%s", host); |
472 | addargs(&alist, "%s", cmd); | |
473 | addargs(&alist, "%s", src); | |
474 | addargs(&alist, "%s%s%s:%s", | |
475 | tuser ? tuser : "", tuser ? "@" : "", | |
476 | thost, targ); | |
477 | if (do_local_cmd(&alist) != 0) | |
815a8407 | 478 | errs = 1; |
5260325f | 479 | } else { /* local to remote */ |
8efc0c15 | 480 | if (remin == -1) { |
481 | len = strlen(targ) + CMDNEEDS + 20; | |
5260325f | 482 | bp = xmalloc(len); |
0ed28836 | 483 | (void) snprintf(bp, len, "%s -t %s", cmd, targ); |
48e671d5 | 484 | host = cleanhostname(thost); |
2e73a022 | 485 | if (do_cmd(host, tuser, bp, &remin, |
486 | &remout, argc) < 0) | |
5260325f | 487 | exit(1); |
8efc0c15 | 488 | if (response() < 0) |
489 | exit(1); | |
5260325f | 490 | (void) xfree(bp); |
8efc0c15 | 491 | } |
5260325f | 492 | source(1, argv + i); |
8efc0c15 | 493 | } |
494 | } | |
495 | } | |
496 | ||
497 | void | |
cf3248b8 | 498 | tolocal(int argc, char **argv) |
8efc0c15 | 499 | { |
500 | int i, len; | |
501 | char *bp, *host, *src, *suser; | |
4116f5c0 | 502 | arglist alist; |
503 | ||
504 | memset(&alist, '\0', sizeof(alist)); | |
505 | alist.list = NULL; | |
8efc0c15 | 506 | |
507 | for (i = 0; i < argc - 1; i++) { | |
5260325f | 508 | if (!(src = colon(argv[i]))) { /* Local to local. */ |
4116f5c0 | 509 | freeargs(&alist); |
510 | addargs(&alist, "%s", _PATH_CP); | |
511 | if (iamrecursive) | |
512 | addargs(&alist, "-r"); | |
513 | if (pflag) | |
514 | addargs(&alist, "-p"); | |
515 | addargs(&alist, "%s", argv[i]); | |
516 | addargs(&alist, "%s", argv[argc-1]); | |
517 | if (do_local_cmd(&alist)) | |
8efc0c15 | 518 | ++errs; |
8efc0c15 | 519 | continue; |
520 | } | |
521 | *src++ = 0; | |
522 | if (*src == 0) | |
523 | src = "."; | |
15748b4d | 524 | if ((host = strrchr(argv[i], '@')) == NULL) { |
8efc0c15 | 525 | host = argv[i]; |
526 | suser = NULL; | |
527 | } else { | |
528 | *host++ = 0; | |
529 | suser = argv[i]; | |
530 | if (*suser == '\0') | |
531 | suser = pwd->pw_name; | |
8efc0c15 | 532 | } |
48e671d5 | 533 | host = cleanhostname(host); |
8efc0c15 | 534 | len = strlen(src) + CMDNEEDS + 20; |
5260325f | 535 | bp = xmalloc(len); |
0ed28836 | 536 | (void) snprintf(bp, len, "%s -f %s", cmd, src); |
2e73a022 | 537 | if (do_cmd(host, suser, bp, &remin, &remout, argc) < 0) { |
5260325f | 538 | (void) xfree(bp); |
539 | ++errs; | |
540 | continue; | |
8efc0c15 | 541 | } |
5260325f | 542 | xfree(bp); |
8efc0c15 | 543 | sink(1, argv + argc - 1); |
5260325f | 544 | (void) close(remin); |
8efc0c15 | 545 | remin = remout = -1; |
546 | } | |
547 | } | |
548 | ||
549 | void | |
cf3248b8 | 550 | source(int argc, char **argv) |
8efc0c15 | 551 | { |
552 | struct stat stb; | |
553 | static BUF buffer; | |
554 | BUF *bp; | |
05624c18 | 555 | off_t i, amt, statbytes; |
556 | size_t result; | |
a056dfa2 | 557 | int fd = -1, haderr, indx; |
8efc0c15 | 558 | char *last, *name, buf[2048]; |
0fc791ba | 559 | int len; |
8efc0c15 | 560 | |
561 | for (indx = 0; indx < argc; ++indx) { | |
5260325f | 562 | name = argv[indx]; |
8efc0c15 | 563 | statbytes = 0; |
0fc791ba | 564 | len = strlen(name); |
565 | while (len > 1 && name[len-1] == '/') | |
566 | name[--len] = '\0'; | |
5720c10e | 567 | if (strchr(name, '\n') != NULL) { |
568 | run_err("%s: skipping, filename contains a newline", | |
569 | name); | |
570 | goto next; | |
571 | } | |
8efc0c15 | 572 | if ((fd = open(name, O_RDONLY, 0)) < 0) |
573 | goto syserr; | |
574 | if (fstat(fd, &stb) < 0) { | |
575 | syserr: run_err("%s: %s", name, strerror(errno)); | |
576 | goto next; | |
577 | } | |
578 | switch (stb.st_mode & S_IFMT) { | |
579 | case S_IFREG: | |
580 | break; | |
581 | case S_IFDIR: | |
582 | if (iamrecursive) { | |
583 | rsource(name, &stb); | |
584 | goto next; | |
585 | } | |
586 | /* FALLTHROUGH */ | |
587 | default: | |
588 | run_err("%s: not a regular file", name); | |
589 | goto next; | |
590 | } | |
591 | if ((last = strrchr(name, '/')) == NULL) | |
592 | last = name; | |
593 | else | |
594 | ++last; | |
595 | curfile = last; | |
596 | if (pflag) { | |
597 | /* | |
598 | * Make it compatible with possible future | |
599 | * versions expecting microseconds. | |
600 | */ | |
0ed28836 | 601 | (void) snprintf(buf, sizeof buf, "T%lu 0 %lu 0\n", |
1e3b8b07 | 602 | (u_long) stb.st_mtime, |
603 | (u_long) stb.st_atime); | |
dc54438a | 604 | (void) atomicio(vwrite, remout, buf, strlen(buf)); |
8efc0c15 | 605 | if (response() < 0) |
606 | goto next; | |
607 | } | |
608 | #define FILEMODEMASK (S_ISUID|S_ISGID|S_IRWXU|S_IRWXG|S_IRWXO) | |
bf1d27bd | 609 | snprintf(buf, sizeof buf, "C%04o %lld %s\n", |
1e3b8b07 | 610 | (u_int) (stb.st_mode & FILEMODEMASK), |
419094c6 | 611 | (long long)stb.st_size, last); |
5260325f | 612 | if (verbose_mode) { |
613 | fprintf(stderr, "Sending file modes: %s", buf); | |
5260325f | 614 | } |
dc54438a | 615 | (void) atomicio(vwrite, remout, buf, strlen(buf)); |
8efc0c15 | 616 | if (response() < 0) |
617 | goto next; | |
618 | if ((bp = allocbuf(&buffer, fd, 2048)) == NULL) { | |
29accf74 | 619 | next: if (fd != -1) { |
620 | (void) close(fd); | |
621 | fd = -1; | |
622 | } | |
8efc0c15 | 623 | continue; |
624 | } | |
b65c3807 | 625 | if (showprogress) |
626 | start_progress_meter(curfile, stb.st_size, &statbytes); | |
8efc0c15 | 627 | /* Keep writing after an error so that we stay sync'd up. */ |
628 | for (haderr = i = 0; i < stb.st_size; i += bp->cnt) { | |
629 | amt = bp->cnt; | |
630 | if (i + amt > stb.st_size) | |
631 | amt = stb.st_size - i; | |
632 | if (!haderr) { | |
1d1ffb87 | 633 | result = atomicio(read, fd, bp->buf, amt); |
8efc0c15 | 634 | if (result != amt) |
05624c18 | 635 | haderr = errno; |
8efc0c15 | 636 | } |
637 | if (haderr) | |
dc54438a | 638 | (void) atomicio(vwrite, remout, bp->buf, amt); |
8efc0c15 | 639 | else { |
dc54438a | 640 | result = atomicio(vwrite, remout, bp->buf, amt); |
8efc0c15 | 641 | if (result != amt) |
05624c18 | 642 | haderr = errno; |
8efc0c15 | 643 | statbytes += result; |
644 | } | |
10adbb52 | 645 | if (limit_rate) |
6ea3c52a | 646 | bwlimit(amt); |
8efc0c15 | 647 | } |
5260325f | 648 | if (showprogress) |
b65c3807 | 649 | stop_progress_meter(); |
8efc0c15 | 650 | |
29accf74 | 651 | if (fd != -1) { |
652 | if (close(fd) < 0 && !haderr) | |
653 | haderr = errno; | |
654 | fd = -1; | |
655 | } | |
8efc0c15 | 656 | if (!haderr) |
dc54438a | 657 | (void) atomicio(vwrite, remout, "", 1); |
8efc0c15 | 658 | else |
659 | run_err("%s: %s", name, strerror(haderr)); | |
5260325f | 660 | (void) response(); |
8efc0c15 | 661 | } |
662 | } | |
663 | ||
664 | void | |
cf3248b8 | 665 | rsource(char *name, struct stat *statp) |
8efc0c15 | 666 | { |
667 | DIR *dirp; | |
668 | struct dirent *dp; | |
669 | char *last, *vect[1], path[1100]; | |
670 | ||
671 | if (!(dirp = opendir(name))) { | |
672 | run_err("%s: %s", name, strerror(errno)); | |
673 | return; | |
674 | } | |
675 | last = strrchr(name, '/'); | |
676 | if (last == 0) | |
677 | last = name; | |
678 | else | |
679 | last++; | |
680 | if (pflag) { | |
0ed28836 | 681 | (void) snprintf(path, sizeof(path), "T%lu 0 %lu 0\n", |
1e3b8b07 | 682 | (u_long) statp->st_mtime, |
683 | (u_long) statp->st_atime); | |
dc54438a | 684 | (void) atomicio(vwrite, remout, path, strlen(path)); |
8efc0c15 | 685 | if (response() < 0) { |
686 | closedir(dirp); | |
687 | return; | |
688 | } | |
689 | } | |
0ed28836 | 690 | (void) snprintf(path, sizeof path, "D%04o %d %.1024s\n", |
1e3b8b07 | 691 | (u_int) (statp->st_mode & FILEMODEMASK), 0, last); |
5260325f | 692 | if (verbose_mode) |
693 | fprintf(stderr, "Entering directory: %s", path); | |
dc54438a | 694 | (void) atomicio(vwrite, remout, path, strlen(path)); |
8efc0c15 | 695 | if (response() < 0) { |
696 | closedir(dirp); | |
697 | return; | |
698 | } | |
e5ff6ecf | 699 | while ((dp = readdir(dirp)) != NULL) { |
8efc0c15 | 700 | if (dp->d_ino == 0) |
701 | continue; | |
702 | if (!strcmp(dp->d_name, ".") || !strcmp(dp->d_name, "..")) | |
703 | continue; | |
704 | if (strlen(name) + 1 + strlen(dp->d_name) >= sizeof(path) - 1) { | |
705 | run_err("%s/%s: name too long", name, dp->d_name); | |
706 | continue; | |
707 | } | |
0ed28836 | 708 | (void) snprintf(path, sizeof path, "%s/%s", name, dp->d_name); |
8efc0c15 | 709 | vect[0] = path; |
710 | source(1, vect); | |
711 | } | |
5260325f | 712 | (void) closedir(dirp); |
dc54438a | 713 | (void) atomicio(vwrite, remout, "E\n", 2); |
5260325f | 714 | (void) response(); |
8efc0c15 | 715 | } |
716 | ||
6ea3c52a | 717 | void |
718 | bwlimit(int amount) | |
719 | { | |
720 | static struct timeval bwstart, bwend; | |
721 | static int lamt, thresh = 16384; | |
ca75d7de | 722 | u_int64_t waitlen; |
6ea3c52a | 723 | struct timespec ts, rm; |
724 | ||
725 | if (!timerisset(&bwstart)) { | |
726 | gettimeofday(&bwstart, NULL); | |
727 | return; | |
728 | } | |
729 | ||
730 | lamt += amount; | |
731 | if (lamt < thresh) | |
732 | return; | |
733 | ||
734 | gettimeofday(&bwend, NULL); | |
735 | timersub(&bwend, &bwstart, &bwend); | |
736 | if (!timerisset(&bwend)) | |
737 | return; | |
738 | ||
739 | lamt *= 8; | |
ca75d7de | 740 | waitlen = (double)1000000L * lamt / limit_rate; |
6ea3c52a | 741 | |
ca75d7de | 742 | bwstart.tv_sec = waitlen / 1000000L; |
743 | bwstart.tv_usec = waitlen % 1000000L; | |
6ea3c52a | 744 | |
745 | if (timercmp(&bwstart, &bwend, >)) { | |
746 | timersub(&bwstart, &bwend, &bwend); | |
747 | ||
748 | /* Adjust the wait time */ | |
749 | if (bwend.tv_sec) { | |
750 | thresh /= 2; | |
751 | if (thresh < 2048) | |
752 | thresh = 2048; | |
753 | } else if (bwend.tv_usec < 100) { | |
754 | thresh *= 2; | |
755 | if (thresh > 32768) | |
756 | thresh = 32768; | |
757 | } | |
758 | ||
759 | TIMEVAL_TO_TIMESPEC(&bwend, &ts); | |
760 | while (nanosleep(&ts, &rm) == -1) { | |
761 | if (errno != EINTR) | |
762 | break; | |
763 | ts = rm; | |
764 | } | |
765 | } | |
766 | ||
767 | lamt = 0; | |
768 | gettimeofday(&bwstart, NULL); | |
769 | } | |
770 | ||
8efc0c15 | 771 | void |
cf3248b8 | 772 | sink(int argc, char **argv) |
8efc0c15 | 773 | { |
774 | static BUF buffer; | |
775 | struct stat stb; | |
5260325f | 776 | enum { |
777 | YES, NO, DISPLAYED | |
778 | } wrerr; | |
8efc0c15 | 779 | BUF *bp; |
05624c18 | 780 | off_t i; |
2ceb8101 | 781 | size_t j, count; |
782 | int amt, exists, first, mask, mode, ofd, omode; | |
b65c3807 | 783 | off_t size, statbytes; |
14a9a859 | 784 | int setimes, targisdir, wrerrno = 0; |
8efc0c15 | 785 | char ch, *cp, *np, *targ, *why, *vect[1], buf[2048]; |
188adeb2 | 786 | struct timeval tv[2]; |
8efc0c15 | 787 | |
36967a16 | 788 | #define atime tv[0] |
789 | #define mtime tv[1] | |
007607ab | 790 | #define SCREWUP(str) { why = str; goto screwup; } |
8efc0c15 | 791 | |
792 | setimes = targisdir = 0; | |
793 | mask = umask(0); | |
794 | if (!pflag) | |
5260325f | 795 | (void) umask(mask); |
8efc0c15 | 796 | if (argc != 1) { |
797 | run_err("ambiguous target"); | |
798 | exit(1); | |
799 | } | |
800 | targ = *argv; | |
801 | if (targetshouldbedirectory) | |
802 | verifydir(targ); | |
5260325f | 803 | |
dc54438a | 804 | (void) atomicio(vwrite, remout, "", 1); |
8efc0c15 | 805 | if (stat(targ, &stb) == 0 && S_ISDIR(stb.st_mode)) |
806 | targisdir = 1; | |
807 | for (first = 1;; first = 0) { | |
808 | cp = buf; | |
05624c18 | 809 | if (atomicio(read, remin, cp, 1) != 1) |
8efc0c15 | 810 | return; |
811 | if (*cp++ == '\n') | |
812 | SCREWUP("unexpected <newline>"); | |
813 | do { | |
1d1ffb87 | 814 | if (atomicio(read, remin, &ch, sizeof(ch)) != sizeof(ch)) |
8efc0c15 | 815 | SCREWUP("lost connection"); |
816 | *cp++ = ch; | |
817 | } while (cp < &buf[sizeof(buf) - 1] && ch != '\n'); | |
818 | *cp = 0; | |
f09aa22c | 819 | if (verbose_mode) |
820 | fprintf(stderr, "Sink: %s", buf); | |
8efc0c15 | 821 | |
822 | if (buf[0] == '\01' || buf[0] == '\02') { | |
823 | if (iamremote == 0) | |
dc54438a | 824 | (void) atomicio(vwrite, STDERR_FILENO, |
71c0d06a | 825 | buf + 1, strlen(buf + 1)); |
8efc0c15 | 826 | if (buf[0] == '\02') |
827 | exit(1); | |
828 | ++errs; | |
829 | continue; | |
830 | } | |
831 | if (buf[0] == 'E') { | |
dc54438a | 832 | (void) atomicio(vwrite, remout, "", 1); |
8efc0c15 | 833 | return; |
834 | } | |
8efc0c15 | 835 | if (ch == '\n') |
836 | *--cp = 0; | |
837 | ||
8efc0c15 | 838 | cp = buf; |
839 | if (*cp == 'T') { | |
840 | setimes++; | |
841 | cp++; | |
36967a16 | 842 | mtime.tv_sec = strtol(cp, &cp, 10); |
843 | if (!cp || *cp++ != ' ') | |
8efc0c15 | 844 | SCREWUP("mtime.sec not delimited"); |
36967a16 | 845 | mtime.tv_usec = strtol(cp, &cp, 10); |
846 | if (!cp || *cp++ != ' ') | |
8efc0c15 | 847 | SCREWUP("mtime.usec not delimited"); |
36967a16 | 848 | atime.tv_sec = strtol(cp, &cp, 10); |
849 | if (!cp || *cp++ != ' ') | |
8efc0c15 | 850 | SCREWUP("atime.sec not delimited"); |
36967a16 | 851 | atime.tv_usec = strtol(cp, &cp, 10); |
852 | if (!cp || *cp++ != '\0') | |
8efc0c15 | 853 | SCREWUP("atime.usec not delimited"); |
dc54438a | 854 | (void) atomicio(vwrite, remout, "", 1); |
8efc0c15 | 855 | continue; |
856 | } | |
857 | if (*cp != 'C' && *cp != 'D') { | |
858 | /* | |
859 | * Check for the case "rcp remote:foo\* local:bar". | |
860 | * In this case, the line "No match." can be returned | |
861 | * by the shell before the rcp command on the remote is | |
862 | * executed so the ^Aerror_message convention isn't | |
863 | * followed. | |
864 | */ | |
865 | if (first) { | |
866 | run_err("%s", cp); | |
867 | exit(1); | |
868 | } | |
869 | SCREWUP("expected control record"); | |
870 | } | |
871 | mode = 0; | |
872 | for (++cp; cp < buf + 5; cp++) { | |
873 | if (*cp < '0' || *cp > '7') | |
874 | SCREWUP("bad mode"); | |
875 | mode = (mode << 3) | (*cp - '0'); | |
876 | } | |
877 | if (*cp++ != ' ') | |
878 | SCREWUP("mode not delimited"); | |
879 | ||
e5ff6ecf | 880 | for (size = 0; isdigit(*cp);) |
8efc0c15 | 881 | size = size * 10 + (*cp++ - '0'); |
882 | if (*cp++ != ' ') | |
883 | SCREWUP("size not delimited"); | |
f09aa22c | 884 | if ((strchr(cp, '/') != NULL) || (strcmp(cp, "..") == 0)) { |
885 | run_err("error: unexpected filename: %s", cp); | |
886 | exit(1); | |
887 | } | |
8efc0c15 | 888 | if (targisdir) { |
889 | static char *namebuf; | |
2ceb8101 | 890 | static size_t cursize; |
8efc0c15 | 891 | size_t need; |
892 | ||
893 | need = strlen(targ) + strlen(cp) + 250; | |
0ed28836 | 894 | if (need > cursize) { |
895 | if (namebuf) | |
896 | xfree(namebuf); | |
5260325f | 897 | namebuf = xmalloc(need); |
0ed28836 | 898 | cursize = need; |
899 | } | |
900 | (void) snprintf(namebuf, need, "%s%s%s", targ, | |
39f9599a | 901 | strcmp(targ, "/") ? "/" : "", cp); |
8efc0c15 | 902 | np = namebuf; |
903 | } else | |
904 | np = targ; | |
905 | curfile = cp; | |
906 | exists = stat(np, &stb) == 0; | |
907 | if (buf[0] == 'D') { | |
908 | int mod_flag = pflag; | |
f09aa22c | 909 | if (!iamrecursive) |
910 | SCREWUP("received directory without -r"); | |
8efc0c15 | 911 | if (exists) { |
912 | if (!S_ISDIR(stb.st_mode)) { | |
913 | errno = ENOTDIR; | |
914 | goto bad; | |
915 | } | |
916 | if (pflag) | |
5260325f | 917 | (void) chmod(np, mode); |
8efc0c15 | 918 | } else { |
5260325f | 919 | /* Handle copying from a read-only |
920 | directory */ | |
8efc0c15 | 921 | mod_flag = 1; |
922 | if (mkdir(np, mode | S_IRWXU) < 0) | |
923 | goto bad; | |
924 | } | |
5c470997 | 925 | vect[0] = xstrdup(np); |
8efc0c15 | 926 | sink(1, vect); |
927 | if (setimes) { | |
928 | setimes = 0; | |
e68225b2 | 929 | if (utimes(vect[0], tv) < 0) |
5260325f | 930 | run_err("%s: set times: %s", |
e68225b2 | 931 | vect[0], strerror(errno)); |
8efc0c15 | 932 | } |
933 | if (mod_flag) | |
e68225b2 | 934 | (void) chmod(vect[0], mode); |
935 | if (vect[0]) | |
936 | xfree(vect[0]); | |
8efc0c15 | 937 | continue; |
938 | } | |
939 | omode = mode; | |
940 | mode |= S_IWRITE; | |
3e4fc5f9 | 941 | if ((ofd = open(np, O_WRONLY|O_CREAT, mode)) < 0) { |
8efc0c15 | 942 | bad: run_err("%s: %s", np, strerror(errno)); |
943 | continue; | |
944 | } | |
dc54438a | 945 | (void) atomicio(vwrite, remout, "", 1); |
8efc0c15 | 946 | if ((bp = allocbuf(&buffer, ofd, 4096)) == NULL) { |
5260325f | 947 | (void) close(ofd); |
8efc0c15 | 948 | continue; |
949 | } | |
950 | cp = bp->buf; | |
951 | wrerr = NO; | |
952 | ||
8efc0c15 | 953 | statbytes = 0; |
b65c3807 | 954 | if (showprogress) |
955 | start_progress_meter(curfile, size, &statbytes); | |
8efc0c15 | 956 | for (count = i = 0; i < size; i += 4096) { |
957 | amt = 4096; | |
958 | if (i + amt > size) | |
959 | amt = size - i; | |
960 | count += amt; | |
961 | do { | |
f581b6e8 | 962 | j = atomicio(read, remin, cp, amt); |
05624c18 | 963 | if (j == 0) { |
8efc0c15 | 964 | run_err("%s", j ? strerror(errno) : |
e5ff6ecf | 965 | "dropped connection"); |
8efc0c15 | 966 | exit(1); |
967 | } | |
968 | amt -= j; | |
969 | cp += j; | |
5260325f | 970 | statbytes += j; |
8efc0c15 | 971 | } while (amt > 0); |
b6453d99 | 972 | |
10adbb52 | 973 | if (limit_rate) |
6ea3c52a | 974 | bwlimit(4096); |
975 | ||
8efc0c15 | 976 | if (count == bp->cnt) { |
977 | /* Keep reading so we stay sync'd up. */ | |
978 | if (wrerr == NO) { | |
05624c18 | 979 | if (atomicio(vwrite, ofd, bp->buf, |
980 | count) != count) { | |
8efc0c15 | 981 | wrerr = YES; |
05624c18 | 982 | wrerrno = errno; |
8efc0c15 | 983 | } |
984 | } | |
985 | count = 0; | |
986 | cp = bp->buf; | |
987 | } | |
988 | } | |
989 | if (showprogress) | |
b65c3807 | 990 | stop_progress_meter(); |
8efc0c15 | 991 | if (count != 0 && wrerr == NO && |
05624c18 | 992 | atomicio(vwrite, ofd, bp->buf, count) != count) { |
8efc0c15 | 993 | wrerr = YES; |
05624c18 | 994 | wrerrno = errno; |
8efc0c15 | 995 | } |
25a6efd8 | 996 | if (wrerr == NO && ftruncate(ofd, size) != 0) { |
8efc0c15 | 997 | run_err("%s: truncate: %s", np, strerror(errno)); |
998 | wrerr = DISPLAYED; | |
999 | } | |
8efc0c15 | 1000 | if (pflag) { |
1001 | if (exists || omode != mode) | |
77bb0bca | 1002 | #ifdef HAVE_FCHMOD |
7e693c81 | 1003 | if (fchmod(ofd, omode)) { |
77bb0bca | 1004 | #else /* HAVE_FCHMOD */ |
7e693c81 | 1005 | if (chmod(np, omode)) { |
77bb0bca | 1006 | #endif /* HAVE_FCHMOD */ |
8efc0c15 | 1007 | run_err("%s: set mode: %s", |
e5ff6ecf | 1008 | np, strerror(errno)); |
7e693c81 | 1009 | wrerr = DISPLAYED; |
1010 | } | |
8efc0c15 | 1011 | } else { |
1012 | if (!exists && omode != mode) | |
77bb0bca | 1013 | #ifdef HAVE_FCHMOD |
7e693c81 | 1014 | if (fchmod(ofd, omode & ~mask)) { |
77bb0bca | 1015 | #else /* HAVE_FCHMOD */ |
7e693c81 | 1016 | if (chmod(np, omode & ~mask)) { |
77bb0bca | 1017 | #endif /* HAVE_FCHMOD */ |
8efc0c15 | 1018 | run_err("%s: set mode: %s", |
e5ff6ecf | 1019 | np, strerror(errno)); |
7e693c81 | 1020 | wrerr = DISPLAYED; |
1021 | } | |
8efc0c15 | 1022 | } |
704b1659 | 1023 | if (close(ofd) == -1) { |
1024 | wrerr = YES; | |
1025 | wrerrno = errno; | |
1026 | } | |
5260325f | 1027 | (void) response(); |
8efc0c15 | 1028 | if (setimes && wrerr == NO) { |
1029 | setimes = 0; | |
188adeb2 | 1030 | if (utimes(np, tv) < 0) { |
8efc0c15 | 1031 | run_err("%s: set times: %s", |
e5ff6ecf | 1032 | np, strerror(errno)); |
8efc0c15 | 1033 | wrerr = DISPLAYED; |
1034 | } | |
1035 | } | |
5260325f | 1036 | switch (wrerr) { |
8efc0c15 | 1037 | case YES: |
1038 | run_err("%s: %s", np, strerror(wrerrno)); | |
1039 | break; | |
1040 | case NO: | |
dc54438a | 1041 | (void) atomicio(vwrite, remout, "", 1); |
8efc0c15 | 1042 | break; |
1043 | case DISPLAYED: | |
1044 | break; | |
1045 | } | |
1046 | } | |
1047 | screwup: | |
1048 | run_err("protocol error: %s", why); | |
1049 | exit(1); | |
1050 | } | |
1051 | ||
1052 | int | |
d5bb9418 | 1053 | response(void) |
8efc0c15 | 1054 | { |
1055 | char ch, *cp, resp, rbuf[2048]; | |
1056 | ||
1d1ffb87 | 1057 | if (atomicio(read, remin, &resp, sizeof(resp)) != sizeof(resp)) |
8efc0c15 | 1058 | lostconn(0); |
1059 | ||
1060 | cp = rbuf; | |
5260325f | 1061 | switch (resp) { |
1062 | case 0: /* ok */ | |
8efc0c15 | 1063 | return (0); |
1064 | default: | |
1065 | *cp++ = resp; | |
1066 | /* FALLTHROUGH */ | |
5260325f | 1067 | case 1: /* error, followed by error msg */ |
1068 | case 2: /* fatal error, "" */ | |
8efc0c15 | 1069 | do { |
1d1ffb87 | 1070 | if (atomicio(read, remin, &ch, sizeof(ch)) != sizeof(ch)) |
8efc0c15 | 1071 | lostconn(0); |
1072 | *cp++ = ch; | |
1073 | } while (cp < &rbuf[sizeof(rbuf) - 1] && ch != '\n'); | |
1074 | ||
1075 | if (!iamremote) | |
dc54438a | 1076 | (void) atomicio(vwrite, STDERR_FILENO, rbuf, cp - rbuf); |
8efc0c15 | 1077 | ++errs; |
1078 | if (resp == 1) | |
1079 | return (-1); | |
1080 | exit(1); | |
1081 | } | |
1082 | /* NOTREACHED */ | |
1083 | } | |
1084 | ||
1085 | void | |
d5bb9418 | 1086 | usage(void) |
8efc0c15 | 1087 | { |
f1278af7 | 1088 | (void) fprintf(stderr, |
433e60ac | 1089 | "usage: scp [-1246BCpqrv] [-c cipher] [-F ssh_config] [-i identity_file]\n" |
1090 | " [-l limit] [-o ssh_option] [-P port] [-S program]\n" | |
3015d321 | 1091 | " [[user@]host1:]file1 [...] [[user@]host2:]file2\n"); |
8efc0c15 | 1092 | exit(1); |
1093 | } | |
1094 | ||
1095 | void | |
5260325f | 1096 | run_err(const char *fmt,...) |
8efc0c15 | 1097 | { |
1098 | static FILE *fp; | |
1099 | va_list ap; | |
8efc0c15 | 1100 | |
1101 | ++errs; | |
1102 | if (fp == NULL && !(fp = fdopen(remout, "w"))) | |
1103 | return; | |
5260325f | 1104 | (void) fprintf(fp, "%c", 0x01); |
1105 | (void) fprintf(fp, "scp: "); | |
b92964b7 | 1106 | va_start(ap, fmt); |
5260325f | 1107 | (void) vfprintf(fp, fmt, ap); |
b92964b7 | 1108 | va_end(ap); |
5260325f | 1109 | (void) fprintf(fp, "\n"); |
1110 | (void) fflush(fp); | |
1111 | ||
1112 | if (!iamremote) { | |
b92964b7 | 1113 | va_start(ap, fmt); |
5260325f | 1114 | vfprintf(stderr, fmt, ap); |
b92964b7 | 1115 | va_end(ap); |
5260325f | 1116 | fprintf(stderr, "\n"); |
1117 | } | |
8efc0c15 | 1118 | } |
1119 | ||
8efc0c15 | 1120 | void |
cf3248b8 | 1121 | verifydir(char *cp) |
8efc0c15 | 1122 | { |
1123 | struct stat stb; | |
1124 | ||
1125 | if (!stat(cp, &stb)) { | |
1126 | if (S_ISDIR(stb.st_mode)) | |
1127 | return; | |
1128 | errno = ENOTDIR; | |
1129 | } | |
1130 | run_err("%s: %s", cp, strerror(errno)); | |
8f4ab41b | 1131 | killchild(0); |
8efc0c15 | 1132 | } |
1133 | ||
1134 | int | |
cf3248b8 | 1135 | okname(char *cp0) |
8efc0c15 | 1136 | { |
1137 | int c; | |
1138 | char *cp; | |
1139 | ||
1140 | cp = cp0; | |
1141 | do { | |
cb220a93 | 1142 | c = (int)*cp; |
8efc0c15 | 1143 | if (c & 0200) |
1144 | goto bad; | |
0ec7661a | 1145 | if (!isalpha(c) && !isdigit(c)) { |
1146 | switch (c) { | |
1147 | case '\'': | |
1148 | case '"': | |
1149 | case '`': | |
1150 | case ' ': | |
1151 | case '#': | |
1152 | goto bad; | |
1153 | default: | |
1154 | break; | |
1155 | } | |
1156 | } | |
8efc0c15 | 1157 | } while (*++cp); |
1158 | return (1); | |
1159 | ||
c8d54615 | 1160 | bad: fprintf(stderr, "%s: invalid user name\n", cp0); |
8efc0c15 | 1161 | return (0); |
1162 | } | |
1163 | ||
1164 | BUF * | |
cf3248b8 | 1165 | allocbuf(BUF *bp, int fd, int blksize) |
8efc0c15 | 1166 | { |
1167 | size_t size; | |
98a7c37b | 1168 | #ifdef HAVE_STRUCT_STAT_ST_BLKSIZE |
8efc0c15 | 1169 | struct stat stb; |
1170 | ||
1171 | if (fstat(fd, &stb) < 0) { | |
1172 | run_err("fstat: %s", strerror(errno)); | |
1173 | return (0); | |
1174 | } | |
a0a14bcd | 1175 | size = roundup(stb.st_blksize, blksize); |
1176 | if (size == 0) | |
5260325f | 1177 | size = blksize; |
98a7c37b | 1178 | #else /* HAVE_STRUCT_STAT_ST_BLKSIZE */ |
2b87da3b | 1179 | size = blksize; |
98a7c37b | 1180 | #endif /* HAVE_STRUCT_STAT_ST_BLKSIZE */ |
8efc0c15 | 1181 | if (bp->cnt >= size) |
1182 | return (bp); | |
5260325f | 1183 | if (bp->buf == NULL) |
1184 | bp->buf = xmalloc(size); | |
1185 | else | |
1186 | bp->buf = xrealloc(bp->buf, size); | |
46660a9e | 1187 | memset(bp->buf, 0, size); |
8efc0c15 | 1188 | bp->cnt = size; |
1189 | return (bp); | |
1190 | } | |
1191 | ||
1192 | void | |
cf3248b8 | 1193 | lostconn(int signo) |
8efc0c15 | 1194 | { |
1195 | if (!iamremote) | |
08c260ea | 1196 | write(STDERR_FILENO, "lost connection\n", 16); |
1197 | if (signo) | |
1198 | _exit(1); | |
1199 | else | |
1200 | exit(1); | |
8efc0c15 | 1201 | } |