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Commit | Line | Data |
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1 | /* | |
2 | * scp - secure remote copy. This is basically patched BSD rcp which | |
3 | * uses ssh to do the data transfer (instead of using rcmd). | |
4 | * | |
5 | * NOTE: This version should NOT be suid root. (This uses ssh to | |
6 | * do the transfer and ssh has the necessary privileges.) | |
7 | * | |
8 | * 1995 Timo Rinne <tri@iki.fi>, Tatu Ylonen <ylo@cs.hut.fi> | |
9 | * | |
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 | /* | |
17 | * Copyright (c) 1999 Theo de Raadt. All rights reserved. | |
18 | * Copyright (c) 1999 Aaron Campbell. All rights reserved. | |
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 | */ | |
40 | ||
41 | /* | |
42 | * Parts from: | |
43 | * | |
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 | * | |
75 | */ | |
76 | ||
77 | #include "includes.h" | |
78 | RCSID("$OpenBSD: scp.c,v 1.60 2001/03/02 18:54:31 deraadt Exp $"); | |
79 | ||
80 | #include "xmalloc.h" | |
81 | #include "atomicio.h" | |
82 | #include "pathnames.h" | |
83 | #include "log.h" | |
84 | #include "misc.h" | |
85 | ||
86 | #ifdef HAVE___PROGNAME | |
87 | extern char *__progname; | |
88 | #else | |
89 | char *__progname; | |
90 | #endif | |
91 | ||
92 | /* For progressmeter() -- number of seconds before xfer considered "stalled" */ | |
93 | #define STALLTIME 5 | |
94 | ||
95 | /* Progress meter bar */ | |
96 | #define BAR \ | |
97 | "************************************************************"\ | |
98 | "************************************************************"\ | |
99 | "************************************************************"\ | |
100 | "************************************************************" | |
101 | #define MAX_BARLENGTH (sizeof(BAR) - 1) | |
102 | ||
103 | /* Visual statistics about files as they are transferred. */ | |
104 | void progressmeter(int); | |
105 | ||
106 | /* Returns width of the terminal (for progress meter calculations). */ | |
107 | int getttywidth(void); | |
108 | int do_cmd(char *host, char *remuser, char *cmd, int *fdin, int *fdout, int argc); | |
109 | ||
110 | /* setup arguments for the call to ssh */ | |
111 | void addargs(char *fmt, ...) __attribute__((format(printf, 1, 2))); | |
112 | ||
113 | /* Time a transfer started. */ | |
114 | static struct timeval start; | |
115 | ||
116 | /* Number of bytes of current file transferred so far. */ | |
117 | volatile u_long statbytes; | |
118 | ||
119 | /* Total size of current file. */ | |
120 | off_t totalbytes = 0; | |
121 | ||
122 | /* Name of current file being transferred. */ | |
123 | char *curfile; | |
124 | ||
125 | /* This is set to non-zero to enable verbose mode. */ | |
126 | int verbose_mode = 0; | |
127 | ||
128 | /* This is set to zero if the progressmeter is not desired. */ | |
129 | int showprogress = 1; | |
130 | ||
131 | /* This is the program to execute for the secured connection. ("ssh" or -S) */ | |
132 | char *ssh_program = _PATH_SSH_PROGRAM; | |
133 | ||
134 | /* This is the list of arguments that scp passes to ssh */ | |
135 | struct { | |
136 | char **list; | |
137 | int num; | |
138 | int nalloc; | |
139 | } args; | |
140 | ||
141 | /* | |
142 | * This function executes the given command as the specified user on the | |
143 | * given host. This returns < 0 if execution fails, and >= 0 otherwise. This | |
144 | * assigns the input and output file descriptors on success. | |
145 | */ | |
146 | ||
147 | int | |
148 | do_cmd(char *host, char *remuser, char *cmd, int *fdin, int *fdout, int argc) | |
149 | { | |
150 | int pin[2], pout[2], reserved[2]; | |
151 | ||
152 | if (verbose_mode) | |
153 | fprintf(stderr, "Executing: program %s host %s, user %s, command %s\n", | |
154 | ssh_program, host, remuser ? remuser : "(unspecified)", cmd); | |
155 | ||
156 | /* | |
157 | * Reserve two descriptors so that the real pipes won't get | |
158 | * descriptors 0 and 1 because that will screw up dup2 below. | |
159 | */ | |
160 | pipe(reserved); | |
161 | ||
162 | /* Create a socket pair for communicating with ssh. */ | |
163 | if (pipe(pin) < 0) | |
164 | fatal("pipe: %s", strerror(errno)); | |
165 | if (pipe(pout) < 0) | |
166 | fatal("pipe: %s", strerror(errno)); | |
167 | ||
168 | /* Free the reserved descriptors. */ | |
169 | close(reserved[0]); | |
170 | close(reserved[1]); | |
171 | ||
172 | /* For a child to execute the command on the remote host using ssh. */ | |
173 | if (fork() == 0) { | |
174 | /* Child. */ | |
175 | close(pin[1]); | |
176 | close(pout[0]); | |
177 | dup2(pin[0], 0); | |
178 | dup2(pout[1], 1); | |
179 | close(pin[0]); | |
180 | close(pout[1]); | |
181 | ||
182 | args.list[0] = ssh_program; | |
183 | if (remuser != NULL) | |
184 | addargs("-l%s", remuser); | |
185 | addargs("%s", host); | |
186 | addargs("%s", cmd); | |
187 | ||
188 | execvp(ssh_program, args.list); | |
189 | perror(ssh_program); | |
190 | exit(1); | |
191 | } | |
192 | /* Parent. Close the other side, and return the local side. */ | |
193 | close(pin[0]); | |
194 | *fdout = pin[1]; | |
195 | close(pout[1]); | |
196 | *fdin = pout[0]; | |
197 | return 0; | |
198 | } | |
199 | ||
200 | typedef struct { | |
201 | int cnt; | |
202 | char *buf; | |
203 | } BUF; | |
204 | ||
205 | extern int iamremote; | |
206 | ||
207 | BUF *allocbuf(BUF *, int, int); | |
208 | char *colon(char *); | |
209 | void lostconn(int); | |
210 | void nospace(void); | |
211 | int okname(char *); | |
212 | void run_err(const char *,...); | |
213 | void verifydir(char *); | |
214 | ||
215 | struct passwd *pwd; | |
216 | uid_t userid; | |
217 | int errs, remin, remout; | |
218 | int pflag, iamremote, iamrecursive, targetshouldbedirectory; | |
219 | ||
220 | #define CMDNEEDS 64 | |
221 | char cmd[CMDNEEDS]; /* must hold "rcp -r -p -d\0" */ | |
222 | ||
223 | int main(int, char *[]); | |
224 | int response(void); | |
225 | void rsource(char *, struct stat *); | |
226 | void sink(int, char *[]); | |
227 | void source(int, char *[]); | |
228 | void tolocal(int, char *[]); | |
229 | char *cleanhostname(char *); | |
230 | void toremote(char *, int, char *[]); | |
231 | void usage(void); | |
232 | ||
233 | int | |
234 | main(argc, argv) | |
235 | int argc; | |
236 | char *argv[]; | |
237 | { | |
238 | int ch, fflag, tflag; | |
239 | char *targ; | |
240 | extern char *optarg; | |
241 | extern int optind; | |
242 | ||
243 | __progname = get_progname(argv[0]); | |
244 | ||
245 | args.list = NULL; | |
246 | addargs("ssh"); /* overwritten with ssh_program */ | |
247 | addargs("-x"); | |
248 | addargs("-oFallBackToRsh no"); | |
249 | ||
250 | fflag = tflag = 0; | |
251 | while ((ch = getopt(argc, argv, "dfprtvBCc:i:P:q46S:o:")) != -1) | |
252 | switch (ch) { | |
253 | /* User-visible flags. */ | |
254 | case '4': | |
255 | case '6': | |
256 | case 'C': | |
257 | addargs("-%c", ch); | |
258 | break; | |
259 | case 'o': | |
260 | case 'c': | |
261 | case 'i': | |
262 | addargs("-%c%s", ch, optarg); | |
263 | break; | |
264 | case 'P': | |
265 | addargs("-p%s", optarg); | |
266 | break; | |
267 | case 'B': | |
268 | addargs("-oBatchmode yes"); | |
269 | break; | |
270 | case 'p': | |
271 | pflag = 1; | |
272 | break; | |
273 | case 'r': | |
274 | iamrecursive = 1; | |
275 | break; | |
276 | case 'S': | |
277 | ssh_program = xstrdup(optarg); | |
278 | break; | |
279 | case 'v': | |
280 | verbose_mode = 1; | |
281 | break; | |
282 | case 'q': | |
283 | showprogress = 0; | |
284 | break; | |
285 | ||
286 | /* Server options. */ | |
287 | case 'd': | |
288 | targetshouldbedirectory = 1; | |
289 | break; | |
290 | case 'f': /* "from" */ | |
291 | iamremote = 1; | |
292 | fflag = 1; | |
293 | break; | |
294 | case 't': /* "to" */ | |
295 | iamremote = 1; | |
296 | tflag = 1; | |
297 | break; | |
298 | case '?': | |
299 | default: | |
300 | usage(); | |
301 | } | |
302 | argc -= optind; | |
303 | argv += optind; | |
304 | ||
305 | if ((pwd = getpwuid(userid = getuid())) == NULL) | |
306 | fatal("unknown user %d", (int) userid); | |
307 | ||
308 | if (!isatty(STDERR_FILENO)) | |
309 | showprogress = 0; | |
310 | ||
311 | remin = STDIN_FILENO; | |
312 | remout = STDOUT_FILENO; | |
313 | ||
314 | if (fflag) { | |
315 | /* Follow "protocol", send data. */ | |
316 | (void) response(); | |
317 | source(argc, argv); | |
318 | exit(errs != 0); | |
319 | } | |
320 | if (tflag) { | |
321 | /* Receive data. */ | |
322 | sink(argc, argv); | |
323 | exit(errs != 0); | |
324 | } | |
325 | if (argc < 2) | |
326 | usage(); | |
327 | if (argc > 2) | |
328 | targetshouldbedirectory = 1; | |
329 | ||
330 | remin = remout = -1; | |
331 | /* Command to be executed on remote system using "ssh". */ | |
332 | (void) snprintf(cmd, sizeof cmd, "scp%s%s%s%s", | |
333 | verbose_mode ? " -v" : "", | |
334 | iamrecursive ? " -r" : "", pflag ? " -p" : "", | |
335 | targetshouldbedirectory ? " -d" : ""); | |
336 | ||
337 | (void) signal(SIGPIPE, lostconn); | |
338 | ||
339 | if ((targ = colon(argv[argc - 1]))) /* Dest is remote host. */ | |
340 | toremote(targ, argc, argv); | |
341 | else { | |
342 | tolocal(argc, argv); /* Dest is local host. */ | |
343 | if (targetshouldbedirectory) | |
344 | verifydir(argv[argc - 1]); | |
345 | } | |
346 | exit(errs != 0); | |
347 | } | |
348 | ||
349 | char * | |
350 | cleanhostname(host) | |
351 | char *host; | |
352 | { | |
353 | if (*host == '[' && host[strlen(host) - 1] == ']') { | |
354 | host[strlen(host) - 1] = '\0'; | |
355 | return (host + 1); | |
356 | } else | |
357 | return host; | |
358 | } | |
359 | ||
360 | void | |
361 | toremote(targ, argc, argv) | |
362 | char *targ, *argv[]; | |
363 | int argc; | |
364 | { | |
365 | int i, len; | |
366 | char *bp, *host, *src, *suser, *thost, *tuser; | |
367 | ||
368 | *targ++ = 0; | |
369 | if (*targ == 0) | |
370 | targ = "."; | |
371 | ||
372 | if ((thost = strchr(argv[argc - 1], '@'))) { | |
373 | /* user@host */ | |
374 | *thost++ = 0; | |
375 | tuser = argv[argc - 1]; | |
376 | if (*tuser == '\0') | |
377 | tuser = NULL; | |
378 | else if (!okname(tuser)) | |
379 | exit(1); | |
380 | } else { | |
381 | thost = argv[argc - 1]; | |
382 | tuser = NULL; | |
383 | } | |
384 | ||
385 | for (i = 0; i < argc - 1; i++) { | |
386 | src = colon(argv[i]); | |
387 | if (src) { /* remote to remote */ | |
388 | *src++ = 0; | |
389 | if (*src == 0) | |
390 | src = "."; | |
391 | host = strchr(argv[i], '@'); | |
392 | len = strlen(ssh_program) + strlen(argv[i]) + | |
393 | strlen(src) + (tuser ? strlen(tuser) : 0) + | |
394 | strlen(thost) + strlen(targ) + CMDNEEDS + 32; | |
395 | bp = xmalloc(len); | |
396 | if (host) { | |
397 | *host++ = 0; | |
398 | host = cleanhostname(host); | |
399 | suser = argv[i]; | |
400 | if (*suser == '\0') | |
401 | suser = pwd->pw_name; | |
402 | else if (!okname(suser)) | |
403 | continue; | |
404 | snprintf(bp, len, | |
405 | "%s%s -x -o'FallBackToRsh no' -n " | |
406 | "-l %s %s %s %s '%s%s%s:%s'", | |
407 | ssh_program, verbose_mode ? " -v" : "", | |
408 | suser, host, cmd, src, | |
409 | tuser ? tuser : "", tuser ? "@" : "", | |
410 | thost, targ); | |
411 | } else { | |
412 | host = cleanhostname(argv[i]); | |
413 | snprintf(bp, len, | |
414 | "exec %s%s -x -o'FallBackToRsh no' -n %s " | |
415 | "%s %s '%s%s%s:%s'", | |
416 | ssh_program, verbose_mode ? " -v" : "", | |
417 | host, cmd, src, | |
418 | tuser ? tuser : "", tuser ? "@" : "", | |
419 | thost, targ); | |
420 | } | |
421 | if (verbose_mode) | |
422 | fprintf(stderr, "Executing: %s\n", bp); | |
423 | (void) system(bp); | |
424 | (void) xfree(bp); | |
425 | } else { /* local to remote */ | |
426 | if (remin == -1) { | |
427 | len = strlen(targ) + CMDNEEDS + 20; | |
428 | bp = xmalloc(len); | |
429 | (void) snprintf(bp, len, "%s -t %s", cmd, targ); | |
430 | host = cleanhostname(thost); | |
431 | if (do_cmd(host, tuser, bp, &remin, | |
432 | &remout, argc) < 0) | |
433 | exit(1); | |
434 | if (response() < 0) | |
435 | exit(1); | |
436 | (void) xfree(bp); | |
437 | } | |
438 | source(1, argv + i); | |
439 | } | |
440 | } | |
441 | } | |
442 | ||
443 | void | |
444 | tolocal(argc, argv) | |
445 | int argc; | |
446 | char *argv[]; | |
447 | { | |
448 | int i, len; | |
449 | char *bp, *host, *src, *suser; | |
450 | ||
451 | for (i = 0; i < argc - 1; i++) { | |
452 | if (!(src = colon(argv[i]))) { /* Local to local. */ | |
453 | len = strlen(_PATH_CP) + strlen(argv[i]) + | |
454 | strlen(argv[argc - 1]) + 20; | |
455 | bp = xmalloc(len); | |
456 | (void) snprintf(bp, len, "exec %s%s%s %s %s", _PATH_CP, | |
457 | iamrecursive ? " -r" : "", pflag ? " -p" : "", | |
458 | argv[i], argv[argc - 1]); | |
459 | if (verbose_mode) | |
460 | fprintf(stderr, "Executing: %s\n", bp); | |
461 | if (system(bp)) | |
462 | ++errs; | |
463 | (void) xfree(bp); | |
464 | continue; | |
465 | } | |
466 | *src++ = 0; | |
467 | if (*src == 0) | |
468 | src = "."; | |
469 | if ((host = strchr(argv[i], '@')) == NULL) { | |
470 | host = argv[i]; | |
471 | suser = NULL; | |
472 | } else { | |
473 | *host++ = 0; | |
474 | suser = argv[i]; | |
475 | if (*suser == '\0') | |
476 | suser = pwd->pw_name; | |
477 | else if (!okname(suser)) | |
478 | continue; | |
479 | } | |
480 | host = cleanhostname(host); | |
481 | len = strlen(src) + CMDNEEDS + 20; | |
482 | bp = xmalloc(len); | |
483 | (void) snprintf(bp, len, "%s -f %s", cmd, src); | |
484 | if (do_cmd(host, suser, bp, &remin, &remout, argc) < 0) { | |
485 | (void) xfree(bp); | |
486 | ++errs; | |
487 | continue; | |
488 | } | |
489 | xfree(bp); | |
490 | sink(1, argv + argc - 1); | |
491 | (void) close(remin); | |
492 | remin = remout = -1; | |
493 | } | |
494 | } | |
495 | ||
496 | void | |
497 | source(argc, argv) | |
498 | int argc; | |
499 | char *argv[]; | |
500 | { | |
501 | struct stat stb; | |
502 | static BUF buffer; | |
503 | BUF *bp; | |
504 | off_t i; | |
505 | int amt, fd, haderr, indx, result; | |
506 | char *last, *name, buf[2048]; | |
507 | ||
508 | for (indx = 0; indx < argc; ++indx) { | |
509 | name = argv[indx]; | |
510 | statbytes = 0; | |
511 | if ((fd = open(name, O_RDONLY, 0)) < 0) | |
512 | goto syserr; | |
513 | if (fstat(fd, &stb) < 0) { | |
514 | syserr: run_err("%s: %s", name, strerror(errno)); | |
515 | goto next; | |
516 | } | |
517 | switch (stb.st_mode & S_IFMT) { | |
518 | case S_IFREG: | |
519 | break; | |
520 | case S_IFDIR: | |
521 | if (iamrecursive) { | |
522 | rsource(name, &stb); | |
523 | goto next; | |
524 | } | |
525 | /* FALLTHROUGH */ | |
526 | default: | |
527 | run_err("%s: not a regular file", name); | |
528 | goto next; | |
529 | } | |
530 | if ((last = strrchr(name, '/')) == NULL) | |
531 | last = name; | |
532 | else | |
533 | ++last; | |
534 | curfile = last; | |
535 | if (pflag) { | |
536 | /* | |
537 | * Make it compatible with possible future | |
538 | * versions expecting microseconds. | |
539 | */ | |
540 | (void) snprintf(buf, sizeof buf, "T%lu 0 %lu 0\n", | |
541 | (u_long) stb.st_mtime, | |
542 | (u_long) stb.st_atime); | |
543 | (void) atomicio(write, remout, buf, strlen(buf)); | |
544 | if (response() < 0) | |
545 | goto next; | |
546 | } | |
547 | #define FILEMODEMASK (S_ISUID|S_ISGID|S_IRWXU|S_IRWXG|S_IRWXO) | |
548 | snprintf(buf, sizeof buf, "C%04o %lu %s\n", | |
549 | (u_int) (stb.st_mode & FILEMODEMASK), | |
550 | (u_long) stb.st_size, last); | |
551 | if (verbose_mode) { | |
552 | fprintf(stderr, "Sending file modes: %s", buf); | |
553 | fflush(stderr); | |
554 | } | |
555 | (void) atomicio(write, remout, buf, strlen(buf)); | |
556 | if (response() < 0) | |
557 | goto next; | |
558 | if ((bp = allocbuf(&buffer, fd, 2048)) == NULL) { | |
559 | next: (void) close(fd); | |
560 | continue; | |
561 | } | |
562 | if (showprogress) { | |
563 | totalbytes = stb.st_size; | |
564 | progressmeter(-1); | |
565 | } | |
566 | /* Keep writing after an error so that we stay sync'd up. */ | |
567 | for (haderr = i = 0; i < stb.st_size; i += bp->cnt) { | |
568 | amt = bp->cnt; | |
569 | if (i + amt > stb.st_size) | |
570 | amt = stb.st_size - i; | |
571 | if (!haderr) { | |
572 | result = atomicio(read, fd, bp->buf, amt); | |
573 | if (result != amt) | |
574 | haderr = result >= 0 ? EIO : errno; | |
575 | } | |
576 | if (haderr) | |
577 | (void) atomicio(write, remout, bp->buf, amt); | |
578 | else { | |
579 | result = atomicio(write, remout, bp->buf, amt); | |
580 | if (result != amt) | |
581 | haderr = result >= 0 ? EIO : errno; | |
582 | statbytes += result; | |
583 | } | |
584 | } | |
585 | if (showprogress) | |
586 | progressmeter(1); | |
587 | ||
588 | if (close(fd) < 0 && !haderr) | |
589 | haderr = errno; | |
590 | if (!haderr) | |
591 | (void) atomicio(write, remout, "", 1); | |
592 | else | |
593 | run_err("%s: %s", name, strerror(haderr)); | |
594 | (void) response(); | |
595 | } | |
596 | } | |
597 | ||
598 | void | |
599 | rsource(name, statp) | |
600 | char *name; | |
601 | struct stat *statp; | |
602 | { | |
603 | DIR *dirp; | |
604 | struct dirent *dp; | |
605 | char *last, *vect[1], path[1100]; | |
606 | ||
607 | if (!(dirp = opendir(name))) { | |
608 | run_err("%s: %s", name, strerror(errno)); | |
609 | return; | |
610 | } | |
611 | last = strrchr(name, '/'); | |
612 | if (last == 0) | |
613 | last = name; | |
614 | else | |
615 | last++; | |
616 | if (pflag) { | |
617 | (void) snprintf(path, sizeof(path), "T%lu 0 %lu 0\n", | |
618 | (u_long) statp->st_mtime, | |
619 | (u_long) statp->st_atime); | |
620 | (void) atomicio(write, remout, path, strlen(path)); | |
621 | if (response() < 0) { | |
622 | closedir(dirp); | |
623 | return; | |
624 | } | |
625 | } | |
626 | (void) snprintf(path, sizeof path, "D%04o %d %.1024s\n", | |
627 | (u_int) (statp->st_mode & FILEMODEMASK), 0, last); | |
628 | if (verbose_mode) | |
629 | fprintf(stderr, "Entering directory: %s", path); | |
630 | (void) atomicio(write, remout, path, strlen(path)); | |
631 | if (response() < 0) { | |
632 | closedir(dirp); | |
633 | return; | |
634 | } | |
635 | while ((dp = readdir(dirp))) { | |
636 | if (dp->d_ino == 0) | |
637 | continue; | |
638 | if (!strcmp(dp->d_name, ".") || !strcmp(dp->d_name, "..")) | |
639 | continue; | |
640 | if (strlen(name) + 1 + strlen(dp->d_name) >= sizeof(path) - 1) { | |
641 | run_err("%s/%s: name too long", name, dp->d_name); | |
642 | continue; | |
643 | } | |
644 | (void) snprintf(path, sizeof path, "%s/%s", name, dp->d_name); | |
645 | vect[0] = path; | |
646 | source(1, vect); | |
647 | } | |
648 | (void) closedir(dirp); | |
649 | (void) atomicio(write, remout, "E\n", 2); | |
650 | (void) response(); | |
651 | } | |
652 | ||
653 | void | |
654 | sink(argc, argv) | |
655 | int argc; | |
656 | char *argv[]; | |
657 | { | |
658 | static BUF buffer; | |
659 | struct stat stb; | |
660 | enum { | |
661 | YES, NO, DISPLAYED | |
662 | } wrerr; | |
663 | BUF *bp; | |
664 | off_t i, j; | |
665 | int amt, count, exists, first, mask, mode, ofd, omode; | |
666 | off_t size; | |
667 | int setimes, targisdir, wrerrno = 0; | |
668 | char ch, *cp, *np, *targ, *why, *vect[1], buf[2048]; | |
669 | int dummy_usec; | |
670 | struct timeval tv[2]; | |
671 | ||
672 | #define SCREWUP(str) { why = str; goto screwup; } | |
673 | ||
674 | setimes = targisdir = 0; | |
675 | mask = umask(0); | |
676 | if (!pflag) | |
677 | (void) umask(mask); | |
678 | if (argc != 1) { | |
679 | run_err("ambiguous target"); | |
680 | exit(1); | |
681 | } | |
682 | targ = *argv; | |
683 | if (targetshouldbedirectory) | |
684 | verifydir(targ); | |
685 | ||
686 | (void) atomicio(write, remout, "", 1); | |
687 | if (stat(targ, &stb) == 0 && S_ISDIR(stb.st_mode)) | |
688 | targisdir = 1; | |
689 | for (first = 1;; first = 0) { | |
690 | cp = buf; | |
691 | if (atomicio(read, remin, cp, 1) <= 0) | |
692 | return; | |
693 | if (*cp++ == '\n') | |
694 | SCREWUP("unexpected <newline>"); | |
695 | do { | |
696 | if (atomicio(read, remin, &ch, sizeof(ch)) != sizeof(ch)) | |
697 | SCREWUP("lost connection"); | |
698 | *cp++ = ch; | |
699 | } while (cp < &buf[sizeof(buf) - 1] && ch != '\n'); | |
700 | *cp = 0; | |
701 | ||
702 | if (buf[0] == '\01' || buf[0] == '\02') { | |
703 | if (iamremote == 0) | |
704 | (void) atomicio(write, STDERR_FILENO, | |
705 | buf + 1, strlen(buf + 1)); | |
706 | if (buf[0] == '\02') | |
707 | exit(1); | |
708 | ++errs; | |
709 | continue; | |
710 | } | |
711 | if (buf[0] == 'E') { | |
712 | (void) atomicio(write, remout, "", 1); | |
713 | return; | |
714 | } | |
715 | if (ch == '\n') | |
716 | *--cp = 0; | |
717 | ||
718 | #define getnum(t) (t) = 0; \ | |
719 | while (*cp >= '0' && *cp <= '9') (t) = (t) * 10 + (*cp++ - '0'); | |
720 | cp = buf; | |
721 | if (*cp == 'T') { | |
722 | setimes++; | |
723 | cp++; | |
724 | getnum(tv[1].tv_sec); | |
725 | if (*cp++ != ' ') | |
726 | SCREWUP("mtime.sec not delimited"); | |
727 | getnum(dummy_usec); | |
728 | tv[1].tv_usec = 0; | |
729 | if (*cp++ != ' ') | |
730 | SCREWUP("mtime.usec not delimited"); | |
731 | getnum(tv[0].tv_sec); | |
732 | if (*cp++ != ' ') | |
733 | SCREWUP("atime.sec not delimited"); | |
734 | getnum(dummy_usec); | |
735 | tv[0].tv_usec = 0; | |
736 | if (*cp++ != '\0') | |
737 | SCREWUP("atime.usec not delimited"); | |
738 | (void) atomicio(write, remout, "", 1); | |
739 | continue; | |
740 | } | |
741 | if (*cp != 'C' && *cp != 'D') { | |
742 | /* | |
743 | * Check for the case "rcp remote:foo\* local:bar". | |
744 | * In this case, the line "No match." can be returned | |
745 | * by the shell before the rcp command on the remote is | |
746 | * executed so the ^Aerror_message convention isn't | |
747 | * followed. | |
748 | */ | |
749 | if (first) { | |
750 | run_err("%s", cp); | |
751 | exit(1); | |
752 | } | |
753 | SCREWUP("expected control record"); | |
754 | } | |
755 | mode = 0; | |
756 | for (++cp; cp < buf + 5; cp++) { | |
757 | if (*cp < '0' || *cp > '7') | |
758 | SCREWUP("bad mode"); | |
759 | mode = (mode << 3) | (*cp - '0'); | |
760 | } | |
761 | if (*cp++ != ' ') | |
762 | SCREWUP("mode not delimited"); | |
763 | ||
764 | for (size = 0; *cp >= '0' && *cp <= '9';) | |
765 | size = size * 10 + (*cp++ - '0'); | |
766 | if (*cp++ != ' ') | |
767 | SCREWUP("size not delimited"); | |
768 | if (targisdir) { | |
769 | static char *namebuf; | |
770 | static int cursize; | |
771 | size_t need; | |
772 | ||
773 | need = strlen(targ) + strlen(cp) + 250; | |
774 | if (need > cursize) { | |
775 | if (namebuf) | |
776 | xfree(namebuf); | |
777 | namebuf = xmalloc(need); | |
778 | cursize = need; | |
779 | } | |
780 | (void) snprintf(namebuf, need, "%s%s%s", targ, | |
781 | *targ ? "/" : "", cp); | |
782 | np = namebuf; | |
783 | } else | |
784 | np = targ; | |
785 | curfile = cp; | |
786 | exists = stat(np, &stb) == 0; | |
787 | if (buf[0] == 'D') { | |
788 | int mod_flag = pflag; | |
789 | if (exists) { | |
790 | if (!S_ISDIR(stb.st_mode)) { | |
791 | errno = ENOTDIR; | |
792 | goto bad; | |
793 | } | |
794 | if (pflag) | |
795 | (void) chmod(np, mode); | |
796 | } else { | |
797 | /* Handle copying from a read-only | |
798 | directory */ | |
799 | mod_flag = 1; | |
800 | if (mkdir(np, mode | S_IRWXU) < 0) | |
801 | goto bad; | |
802 | } | |
803 | vect[0] = xstrdup(np); | |
804 | sink(1, vect); | |
805 | if (setimes) { | |
806 | setimes = 0; | |
807 | if (utimes(vect[0], tv) < 0) | |
808 | run_err("%s: set times: %s", | |
809 | vect[0], strerror(errno)); | |
810 | } | |
811 | if (mod_flag) | |
812 | (void) chmod(vect[0], mode); | |
813 | if (vect[0]) | |
814 | xfree(vect[0]); | |
815 | continue; | |
816 | } | |
817 | omode = mode; | |
818 | mode |= S_IWRITE; | |
819 | if ((ofd = open(np, O_WRONLY | O_CREAT | O_TRUNC, mode)) < 0) { | |
820 | bad: run_err("%s: %s", np, strerror(errno)); | |
821 | continue; | |
822 | } | |
823 | (void) atomicio(write, remout, "", 1); | |
824 | if ((bp = allocbuf(&buffer, ofd, 4096)) == NULL) { | |
825 | (void) close(ofd); | |
826 | continue; | |
827 | } | |
828 | cp = bp->buf; | |
829 | wrerr = NO; | |
830 | ||
831 | if (showprogress) { | |
832 | totalbytes = size; | |
833 | progressmeter(-1); | |
834 | } | |
835 | statbytes = 0; | |
836 | for (count = i = 0; i < size; i += 4096) { | |
837 | amt = 4096; | |
838 | if (i + amt > size) | |
839 | amt = size - i; | |
840 | count += amt; | |
841 | do { | |
842 | j = read(remin, cp, amt); | |
843 | if (j == -1 && (errno == EINTR || errno == EAGAIN)) { | |
844 | continue; | |
845 | } else if (j <= 0) { | |
846 | run_err("%s", j ? strerror(errno) : | |
847 | "dropped connection"); | |
848 | exit(1); | |
849 | } | |
850 | amt -= j; | |
851 | cp += j; | |
852 | statbytes += j; | |
853 | } while (amt > 0); | |
854 | if (count == bp->cnt) { | |
855 | /* Keep reading so we stay sync'd up. */ | |
856 | if (wrerr == NO) { | |
857 | j = atomicio(write, ofd, bp->buf, count); | |
858 | if (j != count) { | |
859 | wrerr = YES; | |
860 | wrerrno = j >= 0 ? EIO : errno; | |
861 | } | |
862 | } | |
863 | count = 0; | |
864 | cp = bp->buf; | |
865 | } | |
866 | } | |
867 | if (showprogress) | |
868 | progressmeter(1); | |
869 | if (count != 0 && wrerr == NO && | |
870 | (j = atomicio(write, ofd, bp->buf, count)) != count) { | |
871 | wrerr = YES; | |
872 | wrerrno = j >= 0 ? EIO : errno; | |
873 | } | |
874 | #if 0 | |
875 | if (ftruncate(ofd, size)) { | |
876 | run_err("%s: truncate: %s", np, strerror(errno)); | |
877 | wrerr = DISPLAYED; | |
878 | } | |
879 | #endif | |
880 | if (pflag) { | |
881 | if (exists || omode != mode) | |
882 | #ifdef HAVE_FCHMOD | |
883 | if (fchmod(ofd, omode)) | |
884 | #else /* HAVE_FCHMOD */ | |
885 | if (chmod(np, omode)) | |
886 | #endif /* HAVE_FCHMOD */ | |
887 | run_err("%s: set mode: %s", | |
888 | np, strerror(errno)); | |
889 | } else { | |
890 | if (!exists && omode != mode) | |
891 | #ifdef HAVE_FCHMOD | |
892 | if (fchmod(ofd, omode & ~mask)) | |
893 | #else /* HAVE_FCHMOD */ | |
894 | if (chmod(np, omode & ~mask)) | |
895 | #endif /* HAVE_FCHMOD */ | |
896 | run_err("%s: set mode: %s", | |
897 | np, strerror(errno)); | |
898 | } | |
899 | if (close(ofd) == -1) { | |
900 | wrerr = YES; | |
901 | wrerrno = errno; | |
902 | } | |
903 | (void) response(); | |
904 | if (setimes && wrerr == NO) { | |
905 | setimes = 0; | |
906 | if (utimes(np, tv) < 0) { | |
907 | run_err("%s: set times: %s", | |
908 | np, strerror(errno)); | |
909 | wrerr = DISPLAYED; | |
910 | } | |
911 | } | |
912 | switch (wrerr) { | |
913 | case YES: | |
914 | run_err("%s: %s", np, strerror(wrerrno)); | |
915 | break; | |
916 | case NO: | |
917 | (void) atomicio(write, remout, "", 1); | |
918 | break; | |
919 | case DISPLAYED: | |
920 | break; | |
921 | } | |
922 | } | |
923 | screwup: | |
924 | run_err("protocol error: %s", why); | |
925 | exit(1); | |
926 | } | |
927 | ||
928 | int | |
929 | response() | |
930 | { | |
931 | char ch, *cp, resp, rbuf[2048]; | |
932 | ||
933 | if (atomicio(read, remin, &resp, sizeof(resp)) != sizeof(resp)) | |
934 | lostconn(0); | |
935 | ||
936 | cp = rbuf; | |
937 | switch (resp) { | |
938 | case 0: /* ok */ | |
939 | return (0); | |
940 | default: | |
941 | *cp++ = resp; | |
942 | /* FALLTHROUGH */ | |
943 | case 1: /* error, followed by error msg */ | |
944 | case 2: /* fatal error, "" */ | |
945 | do { | |
946 | if (atomicio(read, remin, &ch, sizeof(ch)) != sizeof(ch)) | |
947 | lostconn(0); | |
948 | *cp++ = ch; | |
949 | } while (cp < &rbuf[sizeof(rbuf) - 1] && ch != '\n'); | |
950 | ||
951 | if (!iamremote) | |
952 | (void) atomicio(write, STDERR_FILENO, rbuf, cp - rbuf); | |
953 | ++errs; | |
954 | if (resp == 1) | |
955 | return (-1); | |
956 | exit(1); | |
957 | } | |
958 | /* NOTREACHED */ | |
959 | } | |
960 | ||
961 | void | |
962 | usage() | |
963 | { | |
964 | (void) fprintf(stderr, "usage: scp " | |
965 | "[-pqrvC46] [-S ssh] [-P port] [-c cipher] [-i identity] f1 f2; or:\n" | |
966 | " scp [options] f1 ... fn directory\n"); | |
967 | exit(1); | |
968 | } | |
969 | ||
970 | void | |
971 | run_err(const char *fmt,...) | |
972 | { | |
973 | static FILE *fp; | |
974 | va_list ap; | |
975 | ||
976 | ++errs; | |
977 | if (fp == NULL && !(fp = fdopen(remout, "w"))) | |
978 | return; | |
979 | (void) fprintf(fp, "%c", 0x01); | |
980 | (void) fprintf(fp, "scp: "); | |
981 | va_start(ap, fmt); | |
982 | (void) vfprintf(fp, fmt, ap); | |
983 | va_end(ap); | |
984 | (void) fprintf(fp, "\n"); | |
985 | (void) fflush(fp); | |
986 | ||
987 | if (!iamremote) { | |
988 | va_start(ap, fmt); | |
989 | vfprintf(stderr, fmt, ap); | |
990 | va_end(ap); | |
991 | fprintf(stderr, "\n"); | |
992 | } | |
993 | } | |
994 | ||
995 | char * | |
996 | colon(cp) | |
997 | char *cp; | |
998 | { | |
999 | int flag = 0; | |
1000 | ||
1001 | if (*cp == ':') /* Leading colon is part of file name. */ | |
1002 | return (0); | |
1003 | if (*cp == '[') | |
1004 | flag = 1; | |
1005 | ||
1006 | for (; *cp; ++cp) { | |
1007 | if (*cp == '@' && *(cp+1) == '[') | |
1008 | flag = 1; | |
1009 | if (*cp == ']' && *(cp+1) == ':' && flag) | |
1010 | return (cp+1); | |
1011 | if (*cp == ':' && !flag) | |
1012 | return (cp); | |
1013 | if (*cp == '/') | |
1014 | return (0); | |
1015 | } | |
1016 | return (0); | |
1017 | } | |
1018 | ||
1019 | void | |
1020 | verifydir(cp) | |
1021 | char *cp; | |
1022 | { | |
1023 | struct stat stb; | |
1024 | ||
1025 | if (!stat(cp, &stb)) { | |
1026 | if (S_ISDIR(stb.st_mode)) | |
1027 | return; | |
1028 | errno = ENOTDIR; | |
1029 | } | |
1030 | run_err("%s: %s", cp, strerror(errno)); | |
1031 | exit(1); | |
1032 | } | |
1033 | ||
1034 | int | |
1035 | okname(cp0) | |
1036 | char *cp0; | |
1037 | { | |
1038 | int c; | |
1039 | char *cp; | |
1040 | ||
1041 | cp = cp0; | |
1042 | do { | |
1043 | c = *cp; | |
1044 | if (c & 0200) | |
1045 | goto bad; | |
1046 | if (!isalpha(c) && !isdigit(c) && | |
1047 | c != '_' && c != '-' && c != '.' && c != '+') | |
1048 | goto bad; | |
1049 | } while (*++cp); | |
1050 | return (1); | |
1051 | ||
1052 | bad: fprintf(stderr, "%s: invalid user name\n", cp0); | |
1053 | return (0); | |
1054 | } | |
1055 | ||
1056 | BUF * | |
1057 | allocbuf(bp, fd, blksize) | |
1058 | BUF *bp; | |
1059 | int fd, blksize; | |
1060 | { | |
1061 | size_t size; | |
1062 | #ifdef HAVE_ST_BLKSIZE | |
1063 | struct stat stb; | |
1064 | ||
1065 | if (fstat(fd, &stb) < 0) { | |
1066 | run_err("fstat: %s", strerror(errno)); | |
1067 | return (0); | |
1068 | } | |
1069 | if (stb.st_blksize == 0) | |
1070 | size = blksize; | |
1071 | else | |
1072 | size = blksize + (stb.st_blksize - blksize % stb.st_blksize) % | |
1073 | stb.st_blksize; | |
1074 | #else /* HAVE_ST_BLKSIZE */ | |
1075 | size = blksize; | |
1076 | #endif /* HAVE_ST_BLKSIZE */ | |
1077 | if (bp->cnt >= size) | |
1078 | return (bp); | |
1079 | if (bp->buf == NULL) | |
1080 | bp->buf = xmalloc(size); | |
1081 | else | |
1082 | bp->buf = xrealloc(bp->buf, size); | |
1083 | bp->cnt = size; | |
1084 | return (bp); | |
1085 | } | |
1086 | ||
1087 | void | |
1088 | lostconn(signo) | |
1089 | int signo; | |
1090 | { | |
1091 | if (!iamremote) | |
1092 | fprintf(stderr, "lost connection\n"); | |
1093 | exit(1); | |
1094 | } | |
1095 | ||
1096 | ||
1097 | void | |
1098 | alarmtimer(int wait) | |
1099 | { | |
1100 | struct itimerval itv; | |
1101 | ||
1102 | itv.it_value.tv_sec = wait; | |
1103 | itv.it_value.tv_usec = 0; | |
1104 | itv.it_interval = itv.it_value; | |
1105 | setitimer(ITIMER_REAL, &itv, NULL); | |
1106 | } | |
1107 | ||
1108 | void | |
1109 | updateprogressmeter(int ignore) | |
1110 | { | |
1111 | int save_errno = errno; | |
1112 | ||
1113 | progressmeter(0); | |
1114 | errno = save_errno; | |
1115 | } | |
1116 | ||
1117 | int | |
1118 | foregroundproc(void) | |
1119 | { | |
1120 | static pid_t pgrp = -1; | |
1121 | int ctty_pgrp; | |
1122 | ||
1123 | if (pgrp == -1) | |
1124 | pgrp = getpgrp(); | |
1125 | ||
1126 | #ifdef HAVE_TCGETPGRP | |
1127 | return ((ctty_pgrp = tcgetpgrp(STDOUT_FILENO)) != -1 && | |
1128 | ctty_pgrp == pgrp); | |
1129 | #else | |
1130 | return ((ioctl(STDOUT_FILENO, TIOCGPGRP, &ctty_pgrp) != -1 && | |
1131 | ctty_pgrp == pgrp)); | |
1132 | #endif | |
1133 | } | |
1134 | ||
1135 | void | |
1136 | progressmeter(int flag) | |
1137 | { | |
1138 | static const char prefixes[] = " KMGTP"; | |
1139 | static struct timeval lastupdate; | |
1140 | static off_t lastsize; | |
1141 | struct timeval now, td, wait; | |
1142 | off_t cursize, abbrevsize; | |
1143 | double elapsed; | |
1144 | int ratio, barlength, i, remaining; | |
1145 | char buf[256]; | |
1146 | ||
1147 | if (flag == -1) { | |
1148 | (void) gettimeofday(&start, (struct timezone *) 0); | |
1149 | lastupdate = start; | |
1150 | lastsize = 0; | |
1151 | } | |
1152 | if (foregroundproc() == 0) | |
1153 | return; | |
1154 | ||
1155 | (void) gettimeofday(&now, (struct timezone *) 0); | |
1156 | cursize = statbytes; | |
1157 | if (totalbytes != 0) { | |
1158 | ratio = 100.0 * cursize / totalbytes; | |
1159 | ratio = MAX(ratio, 0); | |
1160 | ratio = MIN(ratio, 100); | |
1161 | } else | |
1162 | ratio = 100; | |
1163 | ||
1164 | snprintf(buf, sizeof(buf), "\r%-20.20s %3d%% ", curfile, ratio); | |
1165 | ||
1166 | barlength = getttywidth() - 51; | |
1167 | barlength = (barlength <= MAX_BARLENGTH)?barlength:MAX_BARLENGTH; | |
1168 | if (barlength > 0) { | |
1169 | i = barlength * ratio / 100; | |
1170 | snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), | |
1171 | "|%.*s%*s|", i, BAR, barlength - i, ""); | |
1172 | } | |
1173 | i = 0; | |
1174 | abbrevsize = cursize; | |
1175 | while (abbrevsize >= 100000 && i < sizeof(prefixes)) { | |
1176 | i++; | |
1177 | abbrevsize >>= 10; | |
1178 | } | |
1179 | snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " %5lu %c%c ", | |
1180 | (unsigned long) abbrevsize, prefixes[i], | |
1181 | prefixes[i] == ' ' ? ' ' : 'B'); | |
1182 | ||
1183 | timersub(&now, &lastupdate, &wait); | |
1184 | if (cursize > lastsize) { | |
1185 | lastupdate = now; | |
1186 | lastsize = cursize; | |
1187 | if (wait.tv_sec >= STALLTIME) { | |
1188 | start.tv_sec += wait.tv_sec; | |
1189 | start.tv_usec += wait.tv_usec; | |
1190 | } | |
1191 | wait.tv_sec = 0; | |
1192 | } | |
1193 | timersub(&now, &start, &td); | |
1194 | elapsed = td.tv_sec + (td.tv_usec / 1000000.0); | |
1195 | ||
1196 | if (flag != 1 && | |
1197 | (statbytes <= 0 || elapsed <= 0.0 || cursize > totalbytes)) { | |
1198 | snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), | |
1199 | " --:-- ETA"); | |
1200 | } else if (wait.tv_sec >= STALLTIME) { | |
1201 | snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), | |
1202 | " - stalled -"); | |
1203 | } else { | |
1204 | if (flag != 1) | |
1205 | remaining = (int)(totalbytes / (statbytes / elapsed) - | |
1206 | elapsed); | |
1207 | else | |
1208 | remaining = elapsed; | |
1209 | ||
1210 | i = remaining / 3600; | |
1211 | if (i) | |
1212 | snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), | |
1213 | "%2d:", i); | |
1214 | else | |
1215 | snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), | |
1216 | " "); | |
1217 | i = remaining % 3600; | |
1218 | snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), | |
1219 | "%02d:%02d%s", i / 60, i % 60, | |
1220 | (flag != 1) ? " ETA" : " "); | |
1221 | } | |
1222 | atomicio(write, fileno(stdout), buf, strlen(buf)); | |
1223 | ||
1224 | if (flag == -1) { | |
1225 | mysignal(SIGALRM, updateprogressmeter); | |
1226 | alarmtimer(1); | |
1227 | } else if (flag == 1) { | |
1228 | alarmtimer(0); | |
1229 | atomicio(write, fileno(stdout), "\n", 1); | |
1230 | statbytes = 0; | |
1231 | } | |
1232 | } | |
1233 | ||
1234 | int | |
1235 | getttywidth(void) | |
1236 | { | |
1237 | struct winsize winsize; | |
1238 | ||
1239 | if (ioctl(fileno(stdout), TIOCGWINSZ, &winsize) != -1) | |
1240 | return (winsize.ws_col ? winsize.ws_col : 80); | |
1241 | else | |
1242 | return (80); | |
1243 | } | |
1244 | ||
1245 | void | |
1246 | addargs(char *fmt, ...) | |
1247 | { | |
1248 | va_list ap; | |
1249 | char buf[1024]; | |
1250 | ||
1251 | va_start(ap, fmt); | |
1252 | vsnprintf(buf, sizeof(buf), fmt, ap); | |
1253 | va_end(ap); | |
1254 | ||
1255 | if (args.list == NULL) { | |
1256 | args.nalloc = 32; | |
1257 | args.num = 0; | |
1258 | args.list = xmalloc(args.nalloc * sizeof(char *)); | |
1259 | } else if (args.num+2 >= args.nalloc) { | |
1260 | args.nalloc *= 2; | |
1261 | args.list = xrealloc(args.list, args.nalloc * sizeof(char *)); | |
1262 | } | |
1263 | args.list[args.num++] = xstrdup(buf); | |
1264 | args.list[args.num] = NULL; | |
1265 | } |