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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 | /* | |
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 | */ | |
8efc0c15 | 40 | |
41 | /* | |
2e73a022 | 42 | * Parts from: |
43 | * | |
8efc0c15 | 44 | * Copyright (c) 1983, 1990, 1992, 1993, 1995 |
45 | * The Regents of the University of California. All rights reserved. | |
46 | * | |
47 | * Redistribution and use in source and binary forms, with or without | |
48 | * modification, are permitted provided that the following conditions | |
49 | * are met: | |
50 | * 1. Redistributions of source code must retain the above copyright | |
51 | * notice, this list of conditions and the following disclaimer. | |
52 | * 2. Redistributions in binary form must reproduce the above copyright | |
53 | * notice, this list of conditions and the following disclaimer in the | |
54 | * documentation and/or other materials provided with the distribution. | |
55 | * 3. All advertising materials mentioning features or use of this software | |
56 | * must display the following acknowledgement: | |
57 | * This product includes software developed by the University of | |
58 | * California, Berkeley and its contributors. | |
59 | * 4. Neither the name of the University nor the names of its contributors | |
60 | * may be used to endorse or promote products derived from this software | |
61 | * without specific prior written permission. | |
62 | * | |
63 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | |
64 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
65 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
66 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
67 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
68 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
69 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
70 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
71 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
72 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
73 | * SUCH DAMAGE. | |
74 | * | |
8efc0c15 | 75 | */ |
76 | ||
77 | #include "includes.h" | |
bcbf86ec | 78 | RCSID("$OpenBSD: scp.c,v 1.39 2000/09/07 20:53:00 markus Exp $"); |
8efc0c15 | 79 | |
80 | #include "ssh.h" | |
81 | #include "xmalloc.h" | |
82 | #include <utime.h> | |
83 | ||
84 | #define _PATH_CP "cp" | |
85 | ||
86 | /* For progressmeter() -- number of seconds before xfer considered "stalled" */ | |
87 | #define STALLTIME 5 | |
88 | ||
a4070484 | 89 | /* Progress meter bar */ |
90 | #define BAR \ | |
91 | "************************************************************"\ | |
92 | "************************************************************"\ | |
93 | "************************************************************"\ | |
94 | "************************************************************" | |
95 | #define MAX_BARLENGTH (sizeof(BAR) - 1) | |
96 | ||
8efc0c15 | 97 | /* Visual statistics about files as they are transferred. */ |
98 | void progressmeter(int); | |
99 | ||
100 | /* Returns width of the terminal (for progress meter calculations). */ | |
101 | int getttywidth(void); | |
2e73a022 | 102 | int do_cmd(char *host, char *remuser, char *cmd, int *fdin, int *fdout, int argc); |
8efc0c15 | 103 | |
104 | /* Time a transfer started. */ | |
105 | static struct timeval start; | |
106 | ||
107 | /* Number of bytes of current file transferred so far. */ | |
108 | volatile unsigned long statbytes; | |
109 | ||
110 | /* Total size of current file. */ | |
b4ad3727 | 111 | off_t totalbytes = 0; |
8efc0c15 | 112 | |
113 | /* Name of current file being transferred. */ | |
114 | char *curfile; | |
115 | ||
48e671d5 | 116 | /* This is set to non-zero if IPv4 is desired. */ |
117 | int IPv4 = 0; | |
118 | ||
119 | /* This is set to non-zero if IPv6 is desired. */ | |
120 | int IPv6 = 0; | |
121 | ||
8efc0c15 | 122 | /* This is set to non-zero to enable verbose mode. */ |
5260325f | 123 | int verbose_mode = 0; |
8efc0c15 | 124 | |
125 | /* This is set to non-zero if compression is desired. */ | |
cf8dd513 | 126 | int compress_flag = 0; |
8efc0c15 | 127 | |
128 | /* This is set to zero if the progressmeter is not desired. */ | |
129 | int showprogress = 1; | |
130 | ||
131 | /* This is set to non-zero if running in batch mode (that is, password | |
132 | and passphrase queries are not allowed). */ | |
133 | int batchmode = 0; | |
134 | ||
135 | /* This is set to the cipher type string if given on the command line. */ | |
136 | char *cipher = NULL; | |
137 | ||
5260325f | 138 | /* This is set to the RSA authentication identity file name if given on |
8efc0c15 | 139 | the command line. */ |
140 | char *identity = NULL; | |
141 | ||
142 | /* This is the port to use in contacting the remote site (is non-NULL). */ | |
143 | char *port = NULL; | |
144 | ||
2e73a022 | 145 | /* This is the program to execute for the secured connection. ("ssh" or -S) */ |
146 | char *ssh_program = SSH_PROGRAM; | |
147 | ||
aa3378df | 148 | /* |
149 | * This function executes the given command as the specified user on the | |
150 | * given host. This returns < 0 if execution fails, and >= 0 otherwise. This | |
151 | * assigns the input and output file descriptors on success. | |
152 | */ | |
8efc0c15 | 153 | |
6ae2364d | 154 | int |
2e73a022 | 155 | do_cmd(char *host, char *remuser, char *cmd, int *fdin, int *fdout, int argc) |
8efc0c15 | 156 | { |
5260325f | 157 | int pin[2], pout[2], reserved[2]; |
158 | ||
159 | if (verbose_mode) | |
160 | fprintf(stderr, "Executing: host %s, user %s, command %s\n", | |
2e73a022 | 161 | host, remuser ? remuser : "(unspecified)", cmd); |
5260325f | 162 | |
aa3378df | 163 | /* |
164 | * Reserve two descriptors so that the real pipes won't get | |
165 | * descriptors 0 and 1 because that will screw up dup2 below. | |
166 | */ | |
5260325f | 167 | pipe(reserved); |
168 | ||
169 | /* Create a socket pair for communicating with ssh. */ | |
170 | if (pipe(pin) < 0) | |
171 | fatal("pipe: %s", strerror(errno)); | |
172 | if (pipe(pout) < 0) | |
173 | fatal("pipe: %s", strerror(errno)); | |
174 | ||
175 | /* Free the reserved descriptors. */ | |
176 | close(reserved[0]); | |
177 | close(reserved[1]); | |
178 | ||
179 | /* For a child to execute the command on the remote host using ssh. */ | |
180 | if (fork() == 0) { | |
2e73a022 | 181 | char *args[100]; /* XXX careful */ |
5260325f | 182 | unsigned int i; |
183 | ||
184 | /* Child. */ | |
185 | close(pin[1]); | |
186 | close(pout[0]); | |
187 | dup2(pin[0], 0); | |
188 | dup2(pout[1], 1); | |
189 | close(pin[0]); | |
190 | close(pout[1]); | |
191 | ||
192 | i = 0; | |
2e73a022 | 193 | args[i++] = ssh_program; |
5260325f | 194 | args[i++] = "-x"; |
195 | args[i++] = "-oFallBackToRsh no"; | |
48e671d5 | 196 | if (IPv4) |
197 | args[i++] = "-4"; | |
198 | if (IPv6) | |
199 | args[i++] = "-6"; | |
5260325f | 200 | if (verbose_mode) |
201 | args[i++] = "-v"; | |
cf8dd513 | 202 | if (compress_flag) |
5260325f | 203 | args[i++] = "-C"; |
204 | if (batchmode) | |
205 | args[i++] = "-oBatchMode yes"; | |
206 | if (cipher != NULL) { | |
207 | args[i++] = "-c"; | |
208 | args[i++] = cipher; | |
209 | } | |
210 | if (identity != NULL) { | |
211 | args[i++] = "-i"; | |
212 | args[i++] = identity; | |
213 | } | |
214 | if (port != NULL) { | |
215 | args[i++] = "-p"; | |
216 | args[i++] = port; | |
217 | } | |
218 | if (remuser != NULL) { | |
219 | args[i++] = "-l"; | |
220 | args[i++] = remuser; | |
221 | } | |
222 | args[i++] = host; | |
223 | args[i++] = cmd; | |
224 | args[i++] = NULL; | |
225 | ||
2e73a022 | 226 | execvp(ssh_program, args); |
227 | perror(ssh_program); | |
5260325f | 228 | exit(1); |
8efc0c15 | 229 | } |
5260325f | 230 | /* Parent. Close the other side, and return the local side. */ |
231 | close(pin[0]); | |
232 | *fdout = pin[1]; | |
233 | close(pout[1]); | |
234 | *fdin = pout[0]; | |
235 | return 0; | |
8efc0c15 | 236 | } |
237 | ||
6ae2364d | 238 | void |
5260325f | 239 | fatal(const char *fmt,...) |
8efc0c15 | 240 | { |
5260325f | 241 | va_list ap; |
242 | char buf[1024]; | |
243 | ||
244 | va_start(ap, fmt); | |
245 | vsnprintf(buf, sizeof(buf), fmt, ap); | |
246 | va_end(ap); | |
247 | fprintf(stderr, "%s\n", buf); | |
248 | exit(255); | |
8efc0c15 | 249 | } |
250 | ||
8efc0c15 | 251 | typedef struct { |
252 | int cnt; | |
253 | char *buf; | |
254 | } BUF; | |
255 | ||
256 | extern int iamremote; | |
257 | ||
5260325f | 258 | BUF *allocbuf(BUF *, int, int); |
259 | char *colon(char *); | |
260 | void lostconn(int); | |
261 | void nospace(void); | |
262 | int okname(char *); | |
263 | void run_err(const char *,...); | |
264 | void verifydir(char *); | |
8efc0c15 | 265 | |
8efc0c15 | 266 | struct passwd *pwd; |
5260325f | 267 | uid_t userid; |
8efc0c15 | 268 | int errs, remin, remout; |
269 | int pflag, iamremote, iamrecursive, targetshouldbedirectory; | |
270 | ||
271 | #define CMDNEEDS 64 | |
272 | char cmd[CMDNEEDS]; /* must hold "rcp -r -p -d\0" */ | |
273 | ||
5260325f | 274 | int response(void); |
275 | void rsource(char *, struct stat *); | |
276 | void sink(int, char *[]); | |
277 | void source(int, char *[]); | |
278 | void tolocal(int, char *[]); | |
279 | void toremote(char *, int, char *[]); | |
280 | void usage(void); | |
8efc0c15 | 281 | |
282 | int | |
283 | main(argc, argv) | |
284 | int argc; | |
285 | char *argv[]; | |
286 | { | |
287 | int ch, fflag, tflag; | |
288 | char *targ; | |
289 | extern char *optarg; | |
290 | extern int optind; | |
291 | ||
292 | fflag = tflag = 0; | |
b5e300c2 | 293 | while ((ch = getopt(argc, argv, "dfprtvBCc:i:P:q46S:")) != EOF) |
5260325f | 294 | switch (ch) { |
295 | /* User-visible flags. */ | |
48e671d5 | 296 | case '4': |
6ae2364d | 297 | IPv4 = 1; |
48e671d5 | 298 | break; |
299 | case '6': | |
6ae2364d | 300 | IPv6 = 1; |
48e671d5 | 301 | break; |
8efc0c15 | 302 | case 'p': |
303 | pflag = 1; | |
304 | break; | |
305 | case 'P': | |
5260325f | 306 | port = optarg; |
307 | break; | |
8efc0c15 | 308 | case 'r': |
309 | iamrecursive = 1; | |
310 | break; | |
2e73a022 | 311 | case 'S': |
312 | ssh_program = optarg; | |
313 | break; | |
314 | ||
5260325f | 315 | /* Server options. */ |
8efc0c15 | 316 | case 'd': |
317 | targetshouldbedirectory = 1; | |
318 | break; | |
5260325f | 319 | case 'f': /* "from" */ |
8efc0c15 | 320 | iamremote = 1; |
321 | fflag = 1; | |
322 | break; | |
5260325f | 323 | case 't': /* "to" */ |
8efc0c15 | 324 | iamremote = 1; |
325 | tflag = 1; | |
326 | break; | |
327 | case 'c': | |
328 | cipher = optarg; | |
5260325f | 329 | break; |
8efc0c15 | 330 | case 'i': |
5260325f | 331 | identity = optarg; |
8efc0c15 | 332 | break; |
333 | case 'v': | |
5260325f | 334 | verbose_mode = 1; |
335 | break; | |
8efc0c15 | 336 | case 'B': |
5260325f | 337 | batchmode = 1; |
338 | break; | |
8efc0c15 | 339 | case 'C': |
cf8dd513 | 340 | compress_flag = 1; |
5260325f | 341 | break; |
8efc0c15 | 342 | case 'q': |
5260325f | 343 | showprogress = 0; |
344 | break; | |
8efc0c15 | 345 | case '?': |
346 | default: | |
347 | usage(); | |
348 | } | |
349 | argc -= optind; | |
350 | argv += optind; | |
351 | ||
352 | if ((pwd = getpwuid(userid = getuid())) == NULL) | |
5260325f | 353 | fatal("unknown user %d", (int) userid); |
8efc0c15 | 354 | |
5260325f | 355 | if (!isatty(STDERR_FILENO)) |
8efc0c15 | 356 | showprogress = 0; |
357 | ||
358 | remin = STDIN_FILENO; | |
359 | remout = STDOUT_FILENO; | |
360 | ||
5260325f | 361 | if (fflag) { |
362 | /* Follow "protocol", send data. */ | |
363 | (void) response(); | |
8efc0c15 | 364 | source(argc, argv); |
365 | exit(errs != 0); | |
366 | } | |
5260325f | 367 | if (tflag) { |
368 | /* Receive data. */ | |
8efc0c15 | 369 | sink(argc, argv); |
370 | exit(errs != 0); | |
371 | } | |
8efc0c15 | 372 | if (argc < 2) |
373 | usage(); | |
374 | if (argc > 2) | |
375 | targetshouldbedirectory = 1; | |
376 | ||
377 | remin = remout = -1; | |
378 | /* Command to be executed on remote system using "ssh". */ | |
5260325f | 379 | (void) sprintf(cmd, "scp%s%s%s%s", 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 { | |
5260325f | 388 | tolocal(argc, argv); /* Dest is local host. */ |
8efc0c15 | 389 | if (targetshouldbedirectory) |
390 | verifydir(argv[argc - 1]); | |
391 | } | |
392 | exit(errs != 0); | |
393 | } | |
394 | ||
48e671d5 | 395 | char * |
396 | cleanhostname(host) | |
397 | char *host; | |
398 | { | |
399 | if (*host == '[' && host[strlen(host) - 1] == ']') { | |
400 | host[strlen(host) - 1] = '\0'; | |
401 | return (host + 1); | |
402 | } else | |
403 | return host; | |
404 | } | |
405 | ||
8efc0c15 | 406 | void |
407 | toremote(targ, argc, argv) | |
408 | char *targ, *argv[]; | |
409 | int argc; | |
410 | { | |
411 | int i, len; | |
412 | char *bp, *host, *src, *suser, *thost, *tuser; | |
413 | ||
414 | *targ++ = 0; | |
415 | if (*targ == 0) | |
416 | targ = "."; | |
417 | ||
418 | if ((thost = strchr(argv[argc - 1], '@'))) { | |
419 | /* user@host */ | |
420 | *thost++ = 0; | |
421 | tuser = argv[argc - 1]; | |
422 | if (*tuser == '\0') | |
423 | tuser = NULL; | |
424 | else if (!okname(tuser)) | |
425 | exit(1); | |
426 | } else { | |
427 | thost = argv[argc - 1]; | |
428 | tuser = NULL; | |
429 | } | |
430 | ||
431 | for (i = 0; i < argc - 1; i++) { | |
432 | src = colon(argv[i]); | |
5260325f | 433 | if (src) { /* remote to remote */ |
8efc0c15 | 434 | *src++ = 0; |
435 | if (*src == 0) | |
436 | src = "."; | |
437 | host = strchr(argv[i], '@'); | |
2e73a022 | 438 | len = strlen(ssh_program) + strlen(argv[i]) + |
439 | strlen(src) + (tuser ? strlen(tuser) : 0) + | |
440 | strlen(thost) + strlen(targ) + CMDNEEDS + 32; | |
5260325f | 441 | bp = xmalloc(len); |
8efc0c15 | 442 | if (host) { |
443 | *host++ = 0; | |
48e671d5 | 444 | host = cleanhostname(host); |
8efc0c15 | 445 | suser = argv[i]; |
446 | if (*suser == '\0') | |
447 | suser = pwd->pw_name; | |
448 | else if (!okname(suser)) | |
449 | continue; | |
5260325f | 450 | (void) sprintf(bp, |
2e73a022 | 451 | "%s%s -x -o'FallBackToRsh no' -n -l %s %s %s %s '%s%s%s:%s'", |
452 | ssh_program, verbose_mode ? " -v" : "", | |
453 | suser, host, cmd, src, | |
454 | tuser ? tuser : "", tuser ? "@" : "", | |
455 | thost, targ); | |
48e671d5 | 456 | } else { |
457 | host = cleanhostname(argv[i]); | |
5260325f | 458 | (void) sprintf(bp, |
2e73a022 | 459 | "exec %s%s -x -o'FallBackToRsh no' -n %s %s %s '%s%s%s:%s'", |
460 | ssh_program, verbose_mode ? " -v" : "", | |
461 | host, cmd, src, | |
462 | tuser ? tuser : "", tuser ? "@" : "", | |
463 | thost, targ); | |
48e671d5 | 464 | } |
5260325f | 465 | if (verbose_mode) |
466 | fprintf(stderr, "Executing: %s\n", bp); | |
467 | (void) system(bp); | |
468 | (void) xfree(bp); | |
469 | } else { /* local to remote */ | |
8efc0c15 | 470 | if (remin == -1) { |
471 | len = strlen(targ) + CMDNEEDS + 20; | |
5260325f | 472 | bp = xmalloc(len); |
473 | (void) sprintf(bp, "%s -t %s", cmd, targ); | |
48e671d5 | 474 | host = cleanhostname(thost); |
2e73a022 | 475 | if (do_cmd(host, tuser, bp, &remin, |
476 | &remout, argc) < 0) | |
5260325f | 477 | exit(1); |
8efc0c15 | 478 | if (response() < 0) |
479 | exit(1); | |
5260325f | 480 | (void) xfree(bp); |
8efc0c15 | 481 | } |
5260325f | 482 | source(1, argv + i); |
8efc0c15 | 483 | } |
484 | } | |
485 | } | |
486 | ||
487 | void | |
488 | tolocal(argc, argv) | |
489 | int argc; | |
490 | char *argv[]; | |
491 | { | |
492 | int i, len; | |
493 | char *bp, *host, *src, *suser; | |
494 | ||
495 | for (i = 0; i < argc - 1; i++) { | |
5260325f | 496 | if (!(src = colon(argv[i]))) { /* Local to local. */ |
8efc0c15 | 497 | len = strlen(_PATH_CP) + strlen(argv[i]) + |
2e73a022 | 498 | strlen(argv[argc - 1]) + 20; |
8efc0c15 | 499 | bp = xmalloc(len); |
5260325f | 500 | (void) sprintf(bp, "exec %s%s%s %s %s", _PATH_CP, |
2e73a022 | 501 | iamrecursive ? " -r" : "", pflag ? " -p" : "", |
502 | argv[i], argv[argc - 1]); | |
5260325f | 503 | if (verbose_mode) |
504 | fprintf(stderr, "Executing: %s\n", bp); | |
8efc0c15 | 505 | if (system(bp)) |
506 | ++errs; | |
5260325f | 507 | (void) xfree(bp); |
8efc0c15 | 508 | continue; |
509 | } | |
510 | *src++ = 0; | |
511 | if (*src == 0) | |
512 | src = "."; | |
513 | if ((host = strchr(argv[i], '@')) == NULL) { | |
514 | host = argv[i]; | |
515 | suser = NULL; | |
516 | } else { | |
517 | *host++ = 0; | |
518 | suser = argv[i]; | |
519 | if (*suser == '\0') | |
520 | suser = pwd->pw_name; | |
521 | else if (!okname(suser)) | |
522 | continue; | |
523 | } | |
48e671d5 | 524 | host = cleanhostname(host); |
8efc0c15 | 525 | len = strlen(src) + CMDNEEDS + 20; |
5260325f | 526 | bp = xmalloc(len); |
527 | (void) sprintf(bp, "%s -f %s", cmd, src); | |
2e73a022 | 528 | if (do_cmd(host, suser, bp, &remin, &remout, argc) < 0) { |
5260325f | 529 | (void) xfree(bp); |
530 | ++errs; | |
531 | continue; | |
8efc0c15 | 532 | } |
5260325f | 533 | xfree(bp); |
8efc0c15 | 534 | sink(1, argv + argc - 1); |
5260325f | 535 | (void) close(remin); |
8efc0c15 | 536 | remin = remout = -1; |
537 | } | |
538 | } | |
539 | ||
540 | void | |
541 | source(argc, argv) | |
542 | int argc; | |
543 | char *argv[]; | |
544 | { | |
545 | struct stat stb; | |
546 | static BUF buffer; | |
547 | BUF *bp; | |
548 | off_t i; | |
549 | int amt, fd, haderr, indx, result; | |
550 | char *last, *name, buf[2048]; | |
551 | ||
552 | for (indx = 0; indx < argc; ++indx) { | |
5260325f | 553 | name = argv[indx]; |
8efc0c15 | 554 | statbytes = 0; |
555 | if ((fd = open(name, O_RDONLY, 0)) < 0) | |
556 | goto syserr; | |
557 | if (fstat(fd, &stb) < 0) { | |
558 | syserr: run_err("%s: %s", name, strerror(errno)); | |
559 | goto next; | |
560 | } | |
561 | switch (stb.st_mode & S_IFMT) { | |
562 | case S_IFREG: | |
563 | break; | |
564 | case S_IFDIR: | |
565 | if (iamrecursive) { | |
566 | rsource(name, &stb); | |
567 | goto next; | |
568 | } | |
569 | /* FALLTHROUGH */ | |
570 | default: | |
571 | run_err("%s: not a regular file", name); | |
572 | goto next; | |
573 | } | |
574 | if ((last = strrchr(name, '/')) == NULL) | |
575 | last = name; | |
576 | else | |
577 | ++last; | |
578 | curfile = last; | |
579 | if (pflag) { | |
580 | /* | |
581 | * Make it compatible with possible future | |
582 | * versions expecting microseconds. | |
583 | */ | |
5260325f | 584 | (void) sprintf(buf, "T%lu 0 %lu 0\n", |
2e73a022 | 585 | (unsigned long) stb.st_mtime, |
586 | (unsigned long) stb.st_atime); | |
3189621b | 587 | (void) atomicio(write, remout, buf, strlen(buf)); |
8efc0c15 | 588 | if (response() < 0) |
589 | goto next; | |
590 | } | |
591 | #define FILEMODEMASK (S_ISUID|S_ISGID|S_IRWXU|S_IRWXG|S_IRWXO) | |
5260325f | 592 | (void) sprintf(buf, "C%04o %lu %s\n", |
593 | (unsigned int) (stb.st_mode & FILEMODEMASK), | |
594 | (unsigned long) stb.st_size, | |
595 | last); | |
596 | if (verbose_mode) { | |
597 | fprintf(stderr, "Sending file modes: %s", buf); | |
598 | fflush(stderr); | |
599 | } | |
3189621b | 600 | (void) atomicio(write, remout, buf, strlen(buf)); |
8efc0c15 | 601 | if (response() < 0) |
602 | goto next; | |
603 | if ((bp = allocbuf(&buffer, fd, 2048)) == NULL) { | |
5260325f | 604 | next: (void) close(fd); |
8efc0c15 | 605 | continue; |
606 | } | |
8efc0c15 | 607 | if (showprogress) { |
608 | totalbytes = stb.st_size; | |
609 | progressmeter(-1); | |
610 | } | |
8efc0c15 | 611 | /* Keep writing after an error so that we stay sync'd up. */ |
612 | for (haderr = i = 0; i < stb.st_size; i += bp->cnt) { | |
613 | amt = bp->cnt; | |
614 | if (i + amt > stb.st_size) | |
615 | amt = stb.st_size - i; | |
616 | if (!haderr) { | |
1d1ffb87 | 617 | result = atomicio(read, fd, bp->buf, amt); |
8efc0c15 | 618 | if (result != amt) |
619 | haderr = result >= 0 ? EIO : errno; | |
620 | } | |
621 | if (haderr) | |
3189621b | 622 | (void) atomicio(write, remout, bp->buf, amt); |
8efc0c15 | 623 | else { |
68227e6d | 624 | result = atomicio(write, remout, bp->buf, amt); |
8efc0c15 | 625 | if (result != amt) |
626 | haderr = result >= 0 ? EIO : errno; | |
627 | statbytes += result; | |
628 | } | |
629 | } | |
5260325f | 630 | if (showprogress) |
8efc0c15 | 631 | progressmeter(1); |
632 | ||
633 | if (close(fd) < 0 && !haderr) | |
634 | haderr = errno; | |
635 | if (!haderr) | |
3189621b | 636 | (void) atomicio(write, remout, "", 1); |
8efc0c15 | 637 | else |
638 | run_err("%s: %s", name, strerror(haderr)); | |
5260325f | 639 | (void) response(); |
8efc0c15 | 640 | } |
641 | } | |
642 | ||
643 | void | |
644 | rsource(name, statp) | |
645 | char *name; | |
646 | struct stat *statp; | |
647 | { | |
648 | DIR *dirp; | |
649 | struct dirent *dp; | |
650 | char *last, *vect[1], path[1100]; | |
651 | ||
652 | if (!(dirp = opendir(name))) { | |
653 | run_err("%s: %s", name, strerror(errno)); | |
654 | return; | |
655 | } | |
656 | last = strrchr(name, '/'); | |
657 | if (last == 0) | |
658 | last = name; | |
659 | else | |
660 | last++; | |
661 | if (pflag) { | |
5260325f | 662 | (void) sprintf(path, "T%lu 0 %lu 0\n", |
2e73a022 | 663 | (unsigned long) statp->st_mtime, |
664 | (unsigned long) statp->st_atime); | |
3189621b | 665 | (void) atomicio(write, remout, path, strlen(path)); |
8efc0c15 | 666 | if (response() < 0) { |
667 | closedir(dirp); | |
668 | return; | |
669 | } | |
670 | } | |
5260325f | 671 | (void) sprintf(path, "D%04o %d %.1024s\n", |
2e73a022 | 672 | (unsigned int) (statp->st_mode & FILEMODEMASK), 0, last); |
5260325f | 673 | if (verbose_mode) |
674 | fprintf(stderr, "Entering directory: %s", path); | |
3189621b | 675 | (void) atomicio(write, remout, path, strlen(path)); |
8efc0c15 | 676 | if (response() < 0) { |
677 | closedir(dirp); | |
678 | return; | |
679 | } | |
680 | while ((dp = readdir(dirp))) { | |
681 | if (dp->d_ino == 0) | |
682 | continue; | |
683 | if (!strcmp(dp->d_name, ".") || !strcmp(dp->d_name, "..")) | |
684 | continue; | |
685 | if (strlen(name) + 1 + strlen(dp->d_name) >= sizeof(path) - 1) { | |
686 | run_err("%s/%s: name too long", name, dp->d_name); | |
687 | continue; | |
688 | } | |
5260325f | 689 | (void) sprintf(path, "%s/%s", name, dp->d_name); |
8efc0c15 | 690 | vect[0] = path; |
691 | source(1, vect); | |
692 | } | |
5260325f | 693 | (void) closedir(dirp); |
3189621b | 694 | (void) atomicio(write, remout, "E\n", 2); |
5260325f | 695 | (void) response(); |
8efc0c15 | 696 | } |
697 | ||
698 | void | |
699 | sink(argc, argv) | |
700 | int argc; | |
701 | char *argv[]; | |
702 | { | |
703 | static BUF buffer; | |
704 | struct stat stb; | |
5260325f | 705 | enum { |
706 | YES, NO, DISPLAYED | |
707 | } wrerr; | |
8efc0c15 | 708 | BUF *bp; |
709 | off_t i, j; | |
710 | int amt, count, exists, first, mask, mode, ofd, omode; | |
14a9a859 | 711 | off_t size; |
712 | int setimes, targisdir, wrerrno = 0; | |
8efc0c15 | 713 | char ch, *cp, *np, *targ, *why, *vect[1], buf[2048]; |
5260325f | 714 | struct utimbuf ut; |
715 | int dummy_usec; | |
8efc0c15 | 716 | |
717 | #define SCREWUP(str) { why = str; goto screwup; } | |
718 | ||
719 | setimes = targisdir = 0; | |
720 | mask = umask(0); | |
721 | if (!pflag) | |
5260325f | 722 | (void) umask(mask); |
8efc0c15 | 723 | if (argc != 1) { |
724 | run_err("ambiguous target"); | |
725 | exit(1); | |
726 | } | |
727 | targ = *argv; | |
728 | if (targetshouldbedirectory) | |
729 | verifydir(targ); | |
5260325f | 730 | |
3189621b | 731 | (void) atomicio(write, remout, "", 1); |
8efc0c15 | 732 | if (stat(targ, &stb) == 0 && S_ISDIR(stb.st_mode)) |
733 | targisdir = 1; | |
734 | for (first = 1;; first = 0) { | |
735 | cp = buf; | |
1d1ffb87 | 736 | if (atomicio(read, remin, cp, 1) <= 0) |
8efc0c15 | 737 | return; |
738 | if (*cp++ == '\n') | |
739 | SCREWUP("unexpected <newline>"); | |
740 | do { | |
1d1ffb87 | 741 | if (atomicio(read, remin, &ch, sizeof(ch)) != sizeof(ch)) |
8efc0c15 | 742 | SCREWUP("lost connection"); |
743 | *cp++ = ch; | |
744 | } while (cp < &buf[sizeof(buf) - 1] && ch != '\n'); | |
745 | *cp = 0; | |
746 | ||
747 | if (buf[0] == '\01' || buf[0] == '\02') { | |
748 | if (iamremote == 0) | |
3189621b | 749 | (void) atomicio(write, STDERR_FILENO, |
5260325f | 750 | buf + 1, strlen(buf + 1)); |
8efc0c15 | 751 | if (buf[0] == '\02') |
752 | exit(1); | |
753 | ++errs; | |
754 | continue; | |
755 | } | |
756 | if (buf[0] == 'E') { | |
3189621b | 757 | (void) atomicio(write, remout, "", 1); |
8efc0c15 | 758 | return; |
759 | } | |
8efc0c15 | 760 | if (ch == '\n') |
761 | *--cp = 0; | |
762 | ||
763 | #define getnum(t) (t) = 0; \ | |
764 | while (*cp >= '0' && *cp <= '9') (t) = (t) * 10 + (*cp++ - '0'); | |
765 | cp = buf; | |
766 | if (*cp == 'T') { | |
767 | setimes++; | |
768 | cp++; | |
769 | getnum(ut.modtime); | |
770 | if (*cp++ != ' ') | |
771 | SCREWUP("mtime.sec not delimited"); | |
772 | getnum(dummy_usec); | |
773 | if (*cp++ != ' ') | |
774 | SCREWUP("mtime.usec not delimited"); | |
775 | getnum(ut.actime); | |
776 | if (*cp++ != ' ') | |
777 | SCREWUP("atime.sec not delimited"); | |
778 | getnum(dummy_usec); | |
779 | if (*cp++ != '\0') | |
780 | SCREWUP("atime.usec not delimited"); | |
3189621b | 781 | (void) atomicio(write, remout, "", 1); |
8efc0c15 | 782 | continue; |
783 | } | |
784 | if (*cp != 'C' && *cp != 'D') { | |
785 | /* | |
786 | * Check for the case "rcp remote:foo\* local:bar". | |
787 | * In this case, the line "No match." can be returned | |
788 | * by the shell before the rcp command on the remote is | |
789 | * executed so the ^Aerror_message convention isn't | |
790 | * followed. | |
791 | */ | |
792 | if (first) { | |
793 | run_err("%s", cp); | |
794 | exit(1); | |
795 | } | |
796 | SCREWUP("expected control record"); | |
797 | } | |
798 | mode = 0; | |
799 | for (++cp; cp < buf + 5; cp++) { | |
800 | if (*cp < '0' || *cp > '7') | |
801 | SCREWUP("bad mode"); | |
802 | mode = (mode << 3) | (*cp - '0'); | |
803 | } | |
804 | if (*cp++ != ' ') | |
805 | SCREWUP("mode not delimited"); | |
806 | ||
5260325f | 807 | for (size = 0; *cp >= '0' && *cp <= '9';) |
8efc0c15 | 808 | size = size * 10 + (*cp++ - '0'); |
809 | if (*cp++ != ' ') | |
810 | SCREWUP("size not delimited"); | |
811 | if (targisdir) { | |
812 | static char *namebuf; | |
813 | static int cursize; | |
814 | size_t need; | |
815 | ||
816 | need = strlen(targ) + strlen(cp) + 250; | |
817 | if (need > cursize) | |
5260325f | 818 | namebuf = xmalloc(need); |
819 | (void) sprintf(namebuf, "%s%s%s", targ, | |
2e73a022 | 820 | *targ ? "/" : "", cp); |
8efc0c15 | 821 | np = namebuf; |
822 | } else | |
823 | np = targ; | |
824 | curfile = cp; | |
825 | exists = stat(np, &stb) == 0; | |
826 | if (buf[0] == 'D') { | |
827 | int mod_flag = pflag; | |
828 | if (exists) { | |
829 | if (!S_ISDIR(stb.st_mode)) { | |
830 | errno = ENOTDIR; | |
831 | goto bad; | |
832 | } | |
833 | if (pflag) | |
5260325f | 834 | (void) chmod(np, mode); |
8efc0c15 | 835 | } else { |
5260325f | 836 | /* Handle copying from a read-only |
837 | directory */ | |
8efc0c15 | 838 | mod_flag = 1; |
839 | if (mkdir(np, mode | S_IRWXU) < 0) | |
840 | goto bad; | |
841 | } | |
842 | vect[0] = np; | |
843 | sink(1, vect); | |
844 | if (setimes) { | |
845 | setimes = 0; | |
846 | if (utime(np, &ut) < 0) | |
5260325f | 847 | run_err("%s: set times: %s", |
848 | np, strerror(errno)); | |
8efc0c15 | 849 | } |
850 | if (mod_flag) | |
5260325f | 851 | (void) chmod(np, mode); |
8efc0c15 | 852 | continue; |
853 | } | |
854 | omode = mode; | |
855 | mode |= S_IWRITE; | |
5260325f | 856 | if ((ofd = open(np, O_WRONLY | O_CREAT | O_TRUNC, mode)) < 0) { |
8efc0c15 | 857 | bad: run_err("%s: %s", np, strerror(errno)); |
858 | continue; | |
859 | } | |
3189621b | 860 | (void) atomicio(write, remout, "", 1); |
8efc0c15 | 861 | if ((bp = allocbuf(&buffer, ofd, 4096)) == NULL) { |
5260325f | 862 | (void) close(ofd); |
8efc0c15 | 863 | continue; |
864 | } | |
865 | cp = bp->buf; | |
866 | wrerr = NO; | |
867 | ||
868 | if (showprogress) { | |
869 | totalbytes = size; | |
870 | progressmeter(-1); | |
871 | } | |
872 | statbytes = 0; | |
873 | for (count = i = 0; i < size; i += 4096) { | |
874 | amt = 4096; | |
875 | if (i + amt > size) | |
876 | amt = size - i; | |
877 | count += amt; | |
878 | do { | |
1d1ffb87 | 879 | j = atomicio(read, remin, cp, amt); |
8efc0c15 | 880 | if (j <= 0) { |
881 | run_err("%s", j ? strerror(errno) : | |
5260325f | 882 | "dropped connection"); |
8efc0c15 | 883 | exit(1); |
884 | } | |
885 | amt -= j; | |
886 | cp += j; | |
5260325f | 887 | statbytes += j; |
8efc0c15 | 888 | } while (amt > 0); |
889 | if (count == bp->cnt) { | |
890 | /* Keep reading so we stay sync'd up. */ | |
891 | if (wrerr == NO) { | |
1d1ffb87 | 892 | j = atomicio(write, ofd, bp->buf, count); |
8efc0c15 | 893 | if (j != count) { |
894 | wrerr = YES; | |
5260325f | 895 | wrerrno = j >= 0 ? EIO : errno; |
8efc0c15 | 896 | } |
897 | } | |
898 | count = 0; | |
899 | cp = bp->buf; | |
900 | } | |
901 | } | |
902 | if (showprogress) | |
903 | progressmeter(1); | |
904 | if (count != 0 && wrerr == NO && | |
1d1ffb87 | 905 | (j = atomicio(write, ofd, bp->buf, count)) != count) { |
8efc0c15 | 906 | wrerr = YES; |
5260325f | 907 | wrerrno = j >= 0 ? EIO : errno; |
8efc0c15 | 908 | } |
909 | #if 0 | |
910 | if (ftruncate(ofd, size)) { | |
911 | run_err("%s: truncate: %s", np, strerror(errno)); | |
912 | wrerr = DISPLAYED; | |
913 | } | |
914 | #endif | |
915 | if (pflag) { | |
916 | if (exists || omode != mode) | |
917 | if (fchmod(ofd, omode)) | |
918 | run_err("%s: set mode: %s", | |
5260325f | 919 | np, strerror(errno)); |
8efc0c15 | 920 | } else { |
921 | if (!exists && omode != mode) | |
922 | if (fchmod(ofd, omode & ~mask)) | |
923 | run_err("%s: set mode: %s", | |
5260325f | 924 | np, strerror(errno)); |
8efc0c15 | 925 | } |
704b1659 | 926 | if (close(ofd) == -1) { |
927 | wrerr = YES; | |
928 | wrerrno = errno; | |
929 | } | |
5260325f | 930 | (void) response(); |
8efc0c15 | 931 | if (setimes && wrerr == NO) { |
932 | setimes = 0; | |
933 | if (utime(np, &ut) < 0) { | |
934 | run_err("%s: set times: %s", | |
5260325f | 935 | np, strerror(errno)); |
8efc0c15 | 936 | wrerr = DISPLAYED; |
937 | } | |
938 | } | |
5260325f | 939 | switch (wrerr) { |
8efc0c15 | 940 | case YES: |
941 | run_err("%s: %s", np, strerror(wrerrno)); | |
942 | break; | |
943 | case NO: | |
3189621b | 944 | (void) atomicio(write, remout, "", 1); |
8efc0c15 | 945 | break; |
946 | case DISPLAYED: | |
947 | break; | |
948 | } | |
949 | } | |
950 | screwup: | |
951 | run_err("protocol error: %s", why); | |
952 | exit(1); | |
953 | } | |
954 | ||
955 | int | |
956 | response() | |
957 | { | |
958 | char ch, *cp, resp, rbuf[2048]; | |
959 | ||
1d1ffb87 | 960 | if (atomicio(read, remin, &resp, sizeof(resp)) != sizeof(resp)) |
8efc0c15 | 961 | lostconn(0); |
962 | ||
963 | cp = rbuf; | |
5260325f | 964 | switch (resp) { |
965 | case 0: /* ok */ | |
8efc0c15 | 966 | return (0); |
967 | default: | |
968 | *cp++ = resp; | |
969 | /* FALLTHROUGH */ | |
5260325f | 970 | case 1: /* error, followed by error msg */ |
971 | case 2: /* fatal error, "" */ | |
8efc0c15 | 972 | do { |
1d1ffb87 | 973 | if (atomicio(read, remin, &ch, sizeof(ch)) != sizeof(ch)) |
8efc0c15 | 974 | lostconn(0); |
975 | *cp++ = ch; | |
976 | } while (cp < &rbuf[sizeof(rbuf) - 1] && ch != '\n'); | |
977 | ||
978 | if (!iamremote) | |
3189621b | 979 | (void) atomicio(write, STDERR_FILENO, rbuf, cp - rbuf); |
8efc0c15 | 980 | ++errs; |
981 | if (resp == 1) | |
982 | return (-1); | |
983 | exit(1); | |
984 | } | |
985 | /* NOTREACHED */ | |
986 | } | |
987 | ||
988 | void | |
989 | usage() | |
990 | { | |
2e73a022 | 991 | (void) fprintf(stderr, "usage: scp " |
992 | "[-pqrvC46] [-S ssh] [-P port] [-c cipher] [-i identity] f1 f2; or:\n" | |
993 | " scp [options] f1 ... fn directory\n"); | |
8efc0c15 | 994 | exit(1); |
995 | } | |
996 | ||
997 | void | |
5260325f | 998 | run_err(const char *fmt,...) |
8efc0c15 | 999 | { |
1000 | static FILE *fp; | |
1001 | va_list ap; | |
8efc0c15 | 1002 | |
1003 | ++errs; | |
1004 | if (fp == NULL && !(fp = fdopen(remout, "w"))) | |
1005 | return; | |
5260325f | 1006 | (void) fprintf(fp, "%c", 0x01); |
1007 | (void) fprintf(fp, "scp: "); | |
b92964b7 | 1008 | va_start(ap, fmt); |
5260325f | 1009 | (void) vfprintf(fp, fmt, ap); |
b92964b7 | 1010 | va_end(ap); |
5260325f | 1011 | (void) fprintf(fp, "\n"); |
1012 | (void) fflush(fp); | |
1013 | ||
1014 | if (!iamremote) { | |
b92964b7 | 1015 | va_start(ap, fmt); |
5260325f | 1016 | vfprintf(stderr, fmt, ap); |
b92964b7 | 1017 | va_end(ap); |
5260325f | 1018 | fprintf(stderr, "\n"); |
1019 | } | |
8efc0c15 | 1020 | } |
1021 | ||
8efc0c15 | 1022 | char * |
1023 | colon(cp) | |
1024 | char *cp; | |
1025 | { | |
48e671d5 | 1026 | int flag = 0; |
1027 | ||
8efc0c15 | 1028 | if (*cp == ':') /* Leading colon is part of file name. */ |
1029 | return (0); | |
48e671d5 | 1030 | if (*cp == '[') |
1031 | flag = 1; | |
8efc0c15 | 1032 | |
1033 | for (; *cp; ++cp) { | |
48e671d5 | 1034 | if (*cp == '@' && *(cp+1) == '[') |
1035 | flag = 1; | |
1036 | if (*cp == ']' && *(cp+1) == ':' && flag) | |
1037 | return (cp+1); | |
1038 | if (*cp == ':' && !flag) | |
8efc0c15 | 1039 | return (cp); |
1040 | if (*cp == '/') | |
1041 | return (0); | |
1042 | } | |
1043 | return (0); | |
1044 | } | |
1045 | ||
1046 | void | |
1047 | verifydir(cp) | |
1048 | char *cp; | |
1049 | { | |
1050 | struct stat stb; | |
1051 | ||
1052 | if (!stat(cp, &stb)) { | |
1053 | if (S_ISDIR(stb.st_mode)) | |
1054 | return; | |
1055 | errno = ENOTDIR; | |
1056 | } | |
1057 | run_err("%s: %s", cp, strerror(errno)); | |
1058 | exit(1); | |
1059 | } | |
1060 | ||
1061 | int | |
1062 | okname(cp0) | |
1063 | char *cp0; | |
1064 | { | |
1065 | int c; | |
1066 | char *cp; | |
1067 | ||
1068 | cp = cp0; | |
1069 | do { | |
1070 | c = *cp; | |
1071 | if (c & 0200) | |
1072 | goto bad; | |
1073 | if (!isalpha(c) && !isdigit(c) && c != '_' && c != '-') | |
1074 | goto bad; | |
1075 | } while (*++cp); | |
1076 | return (1); | |
1077 | ||
c8d54615 | 1078 | bad: fprintf(stderr, "%s: invalid user name\n", cp0); |
8efc0c15 | 1079 | return (0); |
1080 | } | |
1081 | ||
1082 | BUF * | |
1083 | allocbuf(bp, fd, blksize) | |
1084 | BUF *bp; | |
1085 | int fd, blksize; | |
1086 | { | |
1087 | size_t size; | |
1088 | struct stat stb; | |
1089 | ||
1090 | if (fstat(fd, &stb) < 0) { | |
1091 | run_err("fstat: %s", strerror(errno)); | |
1092 | return (0); | |
1093 | } | |
5260325f | 1094 | if (stb.st_blksize == 0) |
1095 | size = blksize; | |
1096 | else | |
1097 | size = blksize + (stb.st_blksize - blksize % stb.st_blksize) % | |
2e73a022 | 1098 | stb.st_blksize; |
8efc0c15 | 1099 | if (bp->cnt >= size) |
1100 | return (bp); | |
5260325f | 1101 | if (bp->buf == NULL) |
1102 | bp->buf = xmalloc(size); | |
1103 | else | |
1104 | bp->buf = xrealloc(bp->buf, size); | |
8efc0c15 | 1105 | bp->cnt = size; |
1106 | return (bp); | |
1107 | } | |
1108 | ||
1109 | void | |
1110 | lostconn(signo) | |
1111 | int signo; | |
1112 | { | |
1113 | if (!iamremote) | |
1114 | fprintf(stderr, "lost connection\n"); | |
1115 | exit(1); | |
1116 | } | |
1117 | ||
8efc0c15 | 1118 | |
1119 | void | |
1120 | alarmtimer(int wait) | |
1121 | { | |
5260325f | 1122 | struct itimerval itv; |
8efc0c15 | 1123 | |
5260325f | 1124 | itv.it_value.tv_sec = wait; |
1125 | itv.it_value.tv_usec = 0; | |
1126 | itv.it_interval = itv.it_value; | |
1127 | setitimer(ITIMER_REAL, &itv, NULL); | |
8efc0c15 | 1128 | } |
1129 | ||
1130 | void | |
610cd5c6 | 1131 | updateprogressmeter(int ignore) |
8efc0c15 | 1132 | { |
1133 | int save_errno = errno; | |
1134 | ||
1135 | progressmeter(0); | |
1136 | errno = save_errno; | |
1137 | } | |
1138 | ||
2bd61362 | 1139 | int |
1140 | foregroundproc() | |
1141 | { | |
1142 | static pid_t pgrp = -1; | |
1143 | int ctty_pgrp; | |
1144 | ||
1145 | if (pgrp == -1) | |
1146 | pgrp = getpgrp(); | |
1147 | ||
3c62e7eb | 1148 | #ifdef HAVE_CYGWIN |
1149 | /* | |
1150 | * Cygwin only supports tcgetpgrp() for getting the controlling tty | |
1151 | * currently. | |
1152 | */ | |
1153 | return ((ctty_pgrp = tcgetpgrp(STDOUT_FILENO)) != -1 && | |
1154 | ctty_pgrp == pgrp); | |
1155 | #else | |
5260325f | 1156 | return ((ioctl(STDOUT_FILENO, TIOCGPGRP, &ctty_pgrp) != -1 && |
1157 | ctty_pgrp == pgrp)); | |
3c62e7eb | 1158 | #endif |
2bd61362 | 1159 | } |
1160 | ||
8efc0c15 | 1161 | void |
1162 | progressmeter(int flag) | |
1163 | { | |
1164 | static const char prefixes[] = " KMGTP"; | |
1165 | static struct timeval lastupdate; | |
1166 | static off_t lastsize; | |
1167 | struct timeval now, td, wait; | |
1168 | off_t cursize, abbrevsize; | |
1169 | double elapsed; | |
b6573a35 | 1170 | int ratio, barlength, i, remaining; |
8efc0c15 | 1171 | char buf[256]; |
1172 | ||
1173 | if (flag == -1) { | |
5260325f | 1174 | (void) gettimeofday(&start, (struct timezone *) 0); |
8efc0c15 | 1175 | lastupdate = start; |
1176 | lastsize = 0; | |
5260325f | 1177 | } |
2bd61362 | 1178 | if (foregroundproc() == 0) |
1179 | return; | |
1180 | ||
5260325f | 1181 | (void) gettimeofday(&now, (struct timezone *) 0); |
8efc0c15 | 1182 | cursize = statbytes; |
b4ad3727 | 1183 | if (totalbytes != 0) { |
aa3378df | 1184 | ratio = 100.0 * cursize / totalbytes; |
8efc0c15 | 1185 | ratio = MAX(ratio, 0); |
1186 | ratio = MIN(ratio, 100); | |
5260325f | 1187 | } else |
8efc0c15 | 1188 | ratio = 100; |
1189 | ||
5260325f | 1190 | snprintf(buf, sizeof(buf), "\r%-20.20s %3d%% ", curfile, ratio); |
8efc0c15 | 1191 | |
1192 | barlength = getttywidth() - 51; | |
a4070484 | 1193 | barlength = (barlength <= MAX_BARLENGTH)?barlength:MAX_BARLENGTH; |
8efc0c15 | 1194 | if (barlength > 0) { |
1195 | i = barlength * ratio / 100; | |
1196 | snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), | |
a4070484 | 1197 | "|%.*s%*s|", i, BAR, barlength - i, ""); |
8efc0c15 | 1198 | } |
8efc0c15 | 1199 | i = 0; |
1200 | abbrevsize = cursize; | |
1201 | while (abbrevsize >= 100000 && i < sizeof(prefixes)) { | |
1202 | i++; | |
1203 | abbrevsize >>= 10; | |
1204 | } | |
68227e6d | 1205 | snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " %5d %c%c ", |
1206 | (int) abbrevsize, prefixes[i], prefixes[i] == ' ' ? ' ' : | |
5260325f | 1207 | 'B'); |
8efc0c15 | 1208 | |
1209 | timersub(&now, &lastupdate, &wait); | |
1210 | if (cursize > lastsize) { | |
1211 | lastupdate = now; | |
1212 | lastsize = cursize; | |
1213 | if (wait.tv_sec >= STALLTIME) { | |
1214 | start.tv_sec += wait.tv_sec; | |
1215 | start.tv_usec += wait.tv_usec; | |
1216 | } | |
1217 | wait.tv_sec = 0; | |
1218 | } | |
8efc0c15 | 1219 | timersub(&now, &start, &td); |
1220 | elapsed = td.tv_sec + (td.tv_usec / 1000000.0); | |
1221 | ||
1222 | if (statbytes <= 0 || elapsed <= 0.0 || cursize > totalbytes) { | |
1223 | snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), | |
5260325f | 1224 | " --:-- ETA"); |
8efc0c15 | 1225 | } else if (wait.tv_sec >= STALLTIME) { |
1226 | snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), | |
5260325f | 1227 | " - stalled -"); |
8efc0c15 | 1228 | } else { |
d6f24e45 | 1229 | if (flag != 1) |
1230 | remaining = | |
1231 | (int)(totalbytes / (statbytes / elapsed) - elapsed); | |
1232 | else | |
1233 | remaining = elapsed; | |
1234 | ||
5068f573 | 1235 | i = remaining / 3600; |
8efc0c15 | 1236 | if (i) |
1237 | snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), | |
2e73a022 | 1238 | "%2d:", i); |
8efc0c15 | 1239 | else |
1240 | snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), | |
2e73a022 | 1241 | " "); |
8efc0c15 | 1242 | i = remaining % 3600; |
1243 | snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), | |
2e73a022 | 1244 | "%02d:%02d%s", i / 60, i % 60, |
1245 | (flag != 1) ? " ETA" : " "); | |
8efc0c15 | 1246 | } |
1247 | atomicio(write, fileno(stdout), buf, strlen(buf)); | |
1248 | ||
1249 | if (flag == -1) { | |
68227e6d | 1250 | struct sigaction sa; |
1251 | sa.sa_handler = updateprogressmeter; | |
84a770d1 | 1252 | sigemptyset((sigset_t *)&sa.sa_mask); |
c04f75f1 | 1253 | #ifdef SA_RESTART |
68227e6d | 1254 | sa.sa_flags = SA_RESTART; |
c04f75f1 | 1255 | #endif |
68227e6d | 1256 | sigaction(SIGALRM, &sa, NULL); |
8efc0c15 | 1257 | alarmtimer(1); |
1258 | } else if (flag == 1) { | |
1259 | alarmtimer(0); | |
3189621b | 1260 | atomicio(write, fileno(stdout), "\n", 1); |
8efc0c15 | 1261 | statbytes = 0; |
1262 | } | |
1263 | } | |
1264 | ||
1265 | int | |
1266 | getttywidth(void) | |
1267 | { | |
1268 | struct winsize winsize; | |
1269 | ||
1270 | if (ioctl(fileno(stdout), TIOCGWINSZ, &winsize) != -1) | |
5260325f | 1271 | return (winsize.ws_col ? winsize.ws_col : 80); |
8efc0c15 | 1272 | else |
5260325f | 1273 | return (80); |
8efc0c15 | 1274 | } |