| 1 |
/* |
| 2 |
* main.c -- entry point and argument parsing for the UAR program |
| 3 |
* |
| 4 |
* This program is part of the UAR (Universal Archive) utility suite. |
| 5 |
* Copyright (C) 2024 OSN, Inc. |
| 6 |
* Author: Ar Rakin <[email protected]> |
| 7 |
* |
| 8 |
* This program is free software: you can redistribute it and/or modify |
| 9 |
* it under the terms of the GNU General Public License as published by |
| 10 |
* the Free Software Foundation, either version 3 of the License, or |
| 11 |
* (at your option) any later version. |
| 12 |
* |
| 13 |
* This program is distributed in the hope that it will be useful, |
| 14 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 |
* GNU General Public License for more details. |
| 17 |
* |
| 18 |
* You should have received a copy of the GNU General Public License |
| 19 |
* along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 20 |
*/ |
| 21 |
|
| 22 |
#define _XOPEN_SOURCE 500 |
| 23 |
|
| 24 |
#include <assert.h> |
| 25 |
#include <errno.h> |
| 26 |
#include <getopt.h> |
| 27 |
#include <libgen.h> |
| 28 |
#include <limits.h> |
| 29 |
#include <math.h> |
| 30 |
#include <stdarg.h> |
| 31 |
#include <stdbool.h> |
| 32 |
#include <stdio.h> |
| 33 |
#include <stdlib.h> |
| 34 |
#include <string.h> |
| 35 |
#include <strings.h> |
| 36 |
#include <sys/stat.h> |
| 37 |
#include <time.h> |
| 38 |
#include <unistd.h> |
| 39 |
|
| 40 |
#include "uar.h" |
| 41 |
#include "xmalloc.h" |
| 42 |
|
| 43 |
#ifdef HAVE_CONFIG_H |
| 44 |
# include "config.h" |
| 45 |
#else |
| 46 |
# define PACKAGE_NAME "uar" |
| 47 |
# define PACKAGE_VERSION "1.0" |
| 48 |
# define PACKAGE_BUGREPORT "[email protected]" |
| 49 |
#endif |
| 50 |
|
| 51 |
#ifndef NDEBUG |
| 52 |
# define debug(...) pdebug (__FILE__, __LINE__, __VA_ARGS__) |
| 53 |
#else |
| 54 |
# define debug(...) |
| 55 |
#endif |
| 56 |
|
| 57 |
/* Command line options. */ |
| 58 |
static struct option const long_options[] = { |
| 59 |
{ "create", no_argument, NULL, 'c' }, |
| 60 |
{ "extract", no_argument, NULL, 'x' }, |
| 61 |
{ "human-readable", no_argument, NULL, 'm' }, |
| 62 |
{ "list", no_argument, NULL, 't' }, |
| 63 |
{ "verbose", no_argument, NULL, 'v' }, |
| 64 |
{ "file", required_argument, NULL, 'f' }, |
| 65 |
{ "directory", required_argument, NULL, 'C' }, |
| 66 |
{ "help", no_argument, NULL, 'h' }, |
| 67 |
{ "version", no_argument, NULL, 'V' }, |
| 68 |
{ NULL, 0, NULL, 0 }, |
| 69 |
}; |
| 70 |
|
| 71 |
static char const short_options[] = "cxtvmf:C:hV"; |
| 72 |
|
| 73 |
/* Program name. */ |
| 74 |
static char *progname = NULL; |
| 75 |
|
| 76 |
/* Flags for the command line options. */ |
| 77 |
enum uar_mode |
| 78 |
{ |
| 79 |
MODE_NONE = 0, |
| 80 |
MODE_CREATE, |
| 81 |
MODE_EXTRACT, |
| 82 |
MODE_LIST |
| 83 |
}; |
| 84 |
|
| 85 |
struct uar_params |
| 86 |
{ |
| 87 |
enum uar_mode mode; |
| 88 |
bool verbose; |
| 89 |
bool hr_sizes; |
| 90 |
char *file; |
| 91 |
char *cwd; |
| 92 |
char **targets; |
| 93 |
char **rtargets; |
| 94 |
size_t ntargets; |
| 95 |
}; |
| 96 |
|
| 97 |
static struct uar_params params = { 0 }; |
| 98 |
|
| 99 |
/* Print usage information. */ |
| 100 |
static void |
| 101 |
usage (void) |
| 102 |
{ |
| 103 |
printf ("Usage:\n"); |
| 104 |
printf (" uar [OPTION]... [FILE]...\n"); |
| 105 |
printf ("\n"); |
| 106 |
printf ("Universal Archive utility.\n"); |
| 107 |
printf ("\n"); |
| 108 |
printf ("Options:\n"); |
| 109 |
printf (" -c, --create Create a new archive\n"); |
| 110 |
printf (" -x, --extract Extract files from an archive\n"); |
| 111 |
printf (" -t, --list List the contents of an archive\n"); |
| 112 |
printf (" -m, --human-readable Print human-readable sizes\n"); |
| 113 |
printf (" -v, --verbose Verbose mode\n"); |
| 114 |
printf ( |
| 115 |
" -f, --file=ARCHIVE Use archive file or directory ARCHIVE\n"); |
| 116 |
printf (" -C, --directory=DIR Change to directory DIR\n"); |
| 117 |
printf (" -h, --help Display this help and exit\n"); |
| 118 |
printf (" -V, --version Output version information and exit\n"); |
| 119 |
printf ("\n"); |
| 120 |
printf ("Report bugs to: <" PACKAGE_BUGREPORT ">\n"); |
| 121 |
} |
| 122 |
|
| 123 |
/* Print version information. */ |
| 124 |
static void |
| 125 |
show_version (void) |
| 126 |
{ |
| 127 |
printf ("OSN %s %s\n", PACKAGE_NAME, PACKAGE_VERSION); |
| 128 |
printf ("\n"); |
| 129 |
printf ("Copyright (C) 2024 OSN, Inc.\n"); |
| 130 |
printf ("License GPLv3+: GNU GPL version 3 or later " |
| 131 |
"<http://gnu.org/licenses/gpl.html>\n"); |
| 132 |
printf ( |
| 133 |
"This is free software: you are free to change and redistribute it.\n"); |
| 134 |
printf ("There is NO WARRANTY, to the extent permitted by law.\n"); |
| 135 |
printf ("\n"); |
| 136 |
printf ("Written by Ar Rakin <[email protected]>\n"); |
| 137 |
} |
| 138 |
|
| 139 |
#ifndef NDEBUG |
| 140 |
/* Print a debug message. */ |
| 141 |
static void |
| 142 |
pdebug (char const *file, int line, char const *format, ...) |
| 143 |
{ |
| 144 |
if (!params.verbose) |
| 145 |
return; |
| 146 |
|
| 147 |
va_list args; |
| 148 |
va_start (args, format); |
| 149 |
fprintf (stderr, "%s(verbose): %s:%i: ", progname, file, line); |
| 150 |
vfprintf (stderr, format, args); |
| 151 |
va_end (args); |
| 152 |
} |
| 153 |
#endif |
| 154 |
|
| 155 |
/* Print a message. */ |
| 156 |
static void |
| 157 |
pinfo (char const *format, ...) |
| 158 |
{ |
| 159 |
va_list args; |
| 160 |
va_start (args, format); |
| 161 |
fprintf (stdout, "%s: ", progname); |
| 162 |
vfprintf (stdout, format, args); |
| 163 |
va_end (args); |
| 164 |
} |
| 165 |
|
| 166 |
/* Print an error message. */ |
| 167 |
static void |
| 168 |
perr (char const *format, ...) |
| 169 |
{ |
| 170 |
va_list args; |
| 171 |
va_start (args, format); |
| 172 |
fprintf (stderr, "%s: ", progname); |
| 173 |
vfprintf (stderr, format, args); |
| 174 |
va_end (args); |
| 175 |
} |
| 176 |
|
| 177 |
/* Cleanup memory. */ |
| 178 |
static void |
| 179 |
cleanup () |
| 180 |
{ |
| 181 |
for (size_t i = 0; i < params.ntargets; i++) |
| 182 |
free (params.targets[i]); |
| 183 |
|
| 184 |
if (params.targets != NULL) |
| 185 |
free (params.targets); |
| 186 |
|
| 187 |
if (params.cwd != NULL) |
| 188 |
free (params.cwd); |
| 189 |
|
| 190 |
if (params.file != NULL) |
| 191 |
free (params.file); |
| 192 |
} |
| 193 |
|
| 194 |
/* Initialize the program. */ |
| 195 |
static void |
| 196 |
initialize (char *argv0) |
| 197 |
{ |
| 198 |
atexit (&cleanup); |
| 199 |
|
| 200 |
progname = strrchr (argv0, '/'); |
| 201 |
|
| 202 |
if (progname != NULL) |
| 203 |
progname++; |
| 204 |
else |
| 205 |
progname = argv0; |
| 206 |
} |
| 207 |
|
| 208 |
static bool __attribute__ ((unused)) |
| 209 |
create_archive_callback (struct uar_archive *uar __attribute__ ((unused)), |
| 210 |
struct uar_file *file __attribute__ ((unused)), |
| 211 |
const char *fullname __attribute__ ((unused)), |
| 212 |
const char *fullpath) |
| 213 |
{ |
| 214 |
if (!params.verbose) |
| 215 |
return true; |
| 216 |
|
| 217 |
fprintf (stdout, "%s\n", fullpath); |
| 218 |
return true; |
| 219 |
} |
| 220 |
|
| 221 |
/* Create an archive. */ |
| 222 |
static void |
| 223 |
create_archive (void) |
| 224 |
{ |
| 225 |
assert (params.mode == MODE_CREATE); |
| 226 |
assert (params.ntargets > 0); |
| 227 |
assert (params.targets != NULL); |
| 228 |
|
| 229 |
if (params.verbose) |
| 230 |
pinfo ("creating archive: %s\n", params.file); |
| 231 |
|
| 232 |
struct uar_archive *uar = uar_create_stream (); |
| 233 |
|
| 234 |
if (uar == NULL) |
| 235 |
{ |
| 236 |
pinfo ("failed to create archive: %s\n", strerror (errno)); |
| 237 |
return; |
| 238 |
} |
| 239 |
|
| 240 |
for (size_t i = 0; i < params.ntargets; i++) |
| 241 |
{ |
| 242 |
struct stat stinfo = { 0 }; |
| 243 |
|
| 244 |
if (stat (params.targets[i], &stinfo) != 0) |
| 245 |
{ |
| 246 |
perr ("cannot stat '%s': %s\n", params.targets[i], |
| 247 |
strerror (errno)); |
| 248 |
uar_close (uar); |
| 249 |
return; |
| 250 |
} |
| 251 |
|
| 252 |
struct uar_file *file = uar_stream_add_entry ( |
| 253 |
uar, basename (params.rtargets[i]), params.rtargets[i], &stinfo, |
| 254 |
&create_archive_callback); |
| 255 |
|
| 256 |
if (file == NULL || uar_has_error (uar)) |
| 257 |
{ |
| 258 |
const char *error_file = uar_get_error_file (uar); |
| 259 |
perr ("failed to add '%s': %s\n", |
| 260 |
error_file == NULL ? params.targets[i] : error_file, |
| 261 |
uar_strerror (uar)); |
| 262 |
exit (1); |
| 263 |
} |
| 264 |
} |
| 265 |
|
| 266 |
if (!uar_stream_write (uar, params.file)) |
| 267 |
{ |
| 268 |
const char *error_file = uar_get_error_file (uar); |
| 269 |
pinfo ("failed to write archive: %s%s%s\n", |
| 270 |
error_file == NULL ? "" : error_file, |
| 271 |
error_file == NULL ? "" : ": ", uar_strerror (uar)); |
| 272 |
return; |
| 273 |
} |
| 274 |
|
| 275 |
#ifdef UAR_PRINT_VERBOSE_IMPL_INFO |
| 276 |
uar_debug_print (uar, false); |
| 277 |
#endif |
| 278 |
uar_close (uar); |
| 279 |
} |
| 280 |
|
| 281 |
/* Archive extraction callback. */ |
| 282 |
static bool |
| 283 |
extract_archive_callback (struct uar_file *file) |
| 284 |
{ |
| 285 |
pinfo ("extracting: %s\n", uar_file_get_name (file)); |
| 286 |
return true; |
| 287 |
} |
| 288 |
|
| 289 |
/* Extract an archive. */ |
| 290 |
static void |
| 291 |
extract_archive (void) |
| 292 |
{ |
| 293 |
assert (params.mode == MODE_EXTRACT); |
| 294 |
|
| 295 |
pinfo ("extracting archive: %s\n", params.file); |
| 296 |
|
| 297 |
struct uar_archive *uar = uar_open (params.file); |
| 298 |
|
| 299 |
if (uar == NULL || uar_has_error (uar)) |
| 300 |
{ |
| 301 |
pinfo ("failed to open archive: %s\n", strerror (errno)); |
| 302 |
return; |
| 303 |
} |
| 304 |
|
| 305 |
#ifdef UAR_PRINT_VERBOSE_IMPL_INFO |
| 306 |
uar_debug_print (uar, false); |
| 307 |
#endif |
| 308 |
|
| 309 |
if (!uar_extract (uar, params.cwd, &extract_archive_callback)) |
| 310 |
{ |
| 311 |
pinfo ("failed to extract archive: %s\n", strerror (errno)); |
| 312 |
return; |
| 313 |
} |
| 314 |
|
| 315 |
uar_close (uar); |
| 316 |
} |
| 317 |
|
| 318 |
static const char * |
| 319 |
stringify_mode (mode_t mode) |
| 320 |
{ |
| 321 |
static char str[11]; |
| 322 |
|
| 323 |
str[0] = S_ISDIR (mode) ? 'd' : S_ISLNK (mode) ? 'l' : '-'; |
| 324 |
|
| 325 |
for (int i = 1; i < 10; i++) |
| 326 |
str[i] = mode & (1 << (9 - i)) ? "rwxrwxrwx"[i - 1] : '-'; |
| 327 |
|
| 328 |
return str; |
| 329 |
} |
| 330 |
|
| 331 |
static int |
| 332 |
count_dec_numlen (uint64_t num) |
| 333 |
{ |
| 334 |
int len = 0; |
| 335 |
|
| 336 |
do |
| 337 |
{ |
| 338 |
num /= 10; |
| 339 |
len++; |
| 340 |
} |
| 341 |
while (num > 0); |
| 342 |
|
| 343 |
return len; |
| 344 |
} |
| 345 |
|
| 346 |
static char * |
| 347 |
format_iec_size (uint64_t size) |
| 348 |
{ |
| 349 |
static char buf[32] = { 0 }; |
| 350 |
const char suffix[] = { ' ', 'K', 'M', 'G', 'T', 'P', 'E', 'Z', 'Y' }; |
| 351 |
size_t i = 0; |
| 352 |
long double computed = size; |
| 353 |
|
| 354 |
while (computed > 1024 && i < sizeof (suffix) / sizeof (suffix[0])) |
| 355 |
{ |
| 356 |
computed /= 1024; |
| 357 |
i++; |
| 358 |
} |
| 359 |
|
| 360 |
snprintf (buf, sizeof (buf), "%.02Lf%c", computed, suffix[i]); |
| 361 |
return buf; |
| 362 |
} |
| 363 |
|
| 364 |
struct archive_file_info |
| 365 |
{ |
| 366 |
mode_t mode; |
| 367 |
const char *name; |
| 368 |
time_t mtime; |
| 369 |
union |
| 370 |
{ |
| 371 |
|
| 372 |
uint64_t bytes; |
| 373 |
char str[64]; |
| 374 |
} size; |
| 375 |
}; |
| 376 |
|
| 377 |
struct archive_file_table |
| 378 |
{ |
| 379 |
struct archive_file_info *files; |
| 380 |
size_t nfiles; |
| 381 |
int widths[1]; |
| 382 |
}; |
| 383 |
|
| 384 |
#define TABLE_WIDTH_SIZE 1 |
| 385 |
|
| 386 |
static bool |
| 387 |
list_archive_callback_analyze (struct uar_file *file, void *data) |
| 388 |
{ |
| 389 |
struct archive_file_table *table = (struct archive_file_table *) data; |
| 390 |
struct archive_file_info info = { 0 }; |
| 391 |
|
| 392 |
mode_t mode = uar_file_get_mode (file); |
| 393 |
const char *name = uar_file_get_name (file); |
| 394 |
uint64_t size = uar_file_get_size (file); |
| 395 |
int size_len = 0; |
| 396 |
|
| 397 |
info.mode = mode; |
| 398 |
info.name = name; |
| 399 |
info.mtime = uar_file_get_mtime (file); |
| 400 |
|
| 401 |
if (params.hr_sizes) |
| 402 |
{ |
| 403 |
char *str = format_iec_size (size); |
| 404 |
size_len = strlen (str); |
| 405 |
strncpy (info.size.str, str, 32); |
| 406 |
} |
| 407 |
else |
| 408 |
{ |
| 409 |
info.size.bytes = size; |
| 410 |
size_len = count_dec_numlen (size); |
| 411 |
} |
| 412 |
|
| 413 |
if (size_len > table->widths[TABLE_WIDTH_SIZE]) |
| 414 |
table->widths[TABLE_WIDTH_SIZE] = size_len; |
| 415 |
|
| 416 |
table->files[table->nfiles++] = info; |
| 417 |
return true; |
| 418 |
} |
| 419 |
|
| 420 |
static void |
| 421 |
list_archive (void) |
| 422 |
{ |
| 423 |
assert (params.mode == MODE_LIST); |
| 424 |
struct archive_file_table *table = NULL; |
| 425 |
struct uar_archive *uar = uar_open (params.file); |
| 426 |
|
| 427 |
if (uar == NULL || uar_has_error (uar)) |
| 428 |
{ |
| 429 |
pinfo ("failed to open archive: %s\n", strerror (errno)); |
| 430 |
goto list_archive_end; |
| 431 |
} |
| 432 |
|
| 433 |
uint64_t nfiles = uar_get_file_count (uar); |
| 434 |
|
| 435 |
table = xcalloc (1, sizeof (struct archive_file_table)); |
| 436 |
table->files = xcalloc (nfiles, sizeof (struct archive_file_info)); |
| 437 |
table->nfiles = 0; |
| 438 |
|
| 439 |
if (!uar_iterate (uar, &list_archive_callback_analyze, (void *) table)) |
| 440 |
{ |
| 441 |
pinfo ("failed to read archive: %s\n", strerror (errno)); |
| 442 |
goto list_archive_end; |
| 443 |
} |
| 444 |
|
| 445 |
for (size_t i = 0; i < nfiles; i++) |
| 446 |
{ |
| 447 |
struct archive_file_info info = table->files[i]; |
| 448 |
struct tm *tm = localtime (&info.mtime); |
| 449 |
char mtime_str[10] = "none"; |
| 450 |
const char *mode_str = stringify_mode (info.mode); |
| 451 |
|
| 452 |
if (tm == NULL) |
| 453 |
{ |
| 454 |
fprintf (stderr, |
| 455 |
"%s: warning: failed to convert time: %s\n", |
| 456 |
progname, strerror (errno)); |
| 457 |
} |
| 458 |
else |
| 459 |
{ |
| 460 |
strftime (mtime_str, sizeof (mtime_str), "%b %d", tm); |
| 461 |
} |
| 462 |
|
| 463 |
if (params.hr_sizes) |
| 464 |
{ |
| 465 |
|
| 466 |
fprintf (stdout, "%s %*s %s %s\n", mode_str, |
| 467 |
table->widths[TABLE_WIDTH_SIZE], info.size.str, |
| 468 |
mtime_str, info.name); |
| 469 |
} |
| 470 |
else |
| 471 |
{ |
| 472 |
|
| 473 |
fprintf (stdout, "%s %*lu %s %s\n", mode_str, |
| 474 |
table->widths[TABLE_WIDTH_SIZE], info.size.bytes, |
| 475 |
mtime_str, info.name); |
| 476 |
} |
| 477 |
} |
| 478 |
|
| 479 |
list_archive_end: |
| 480 |
free (table->files); |
| 481 |
free (table); |
| 482 |
uar_close (uar); |
| 483 |
} |
| 484 |
|
| 485 |
int |
| 486 |
main (int argc, char **argv) |
| 487 |
{ |
| 488 |
initialize (argv[0]); |
| 489 |
assert (progname != NULL && "progname is NULL"); |
| 490 |
|
| 491 |
while (true) |
| 492 |
{ |
| 493 |
int opt |
| 494 |
= getopt_long (argc, argv, short_options, long_options, NULL); |
| 495 |
|
| 496 |
if (opt == -1) |
| 497 |
break; |
| 498 |
|
| 499 |
if ((opt == 'c' || opt == 'x' || opt == 't') |
| 500 |
&& params.mode != MODE_NONE) |
| 501 |
{ |
| 502 |
perr ("only one mode can be specified\n"); |
| 503 |
exit (1); |
| 504 |
} |
| 505 |
|
| 506 |
switch (opt) |
| 507 |
{ |
| 508 |
case 'c': |
| 509 |
params.mode = MODE_CREATE; |
| 510 |
break; |
| 511 |
|
| 512 |
case 'x': |
| 513 |
params.mode = MODE_EXTRACT; |
| 514 |
break; |
| 515 |
|
| 516 |
case 't': |
| 517 |
params.mode = MODE_LIST; |
| 518 |
break; |
| 519 |
|
| 520 |
case 'v': |
| 521 |
params.verbose = true; |
| 522 |
debug ("Verbose mode enabled\n", progname); |
| 523 |
break; |
| 524 |
|
| 525 |
case 'm': |
| 526 |
params.hr_sizes = true; |
| 527 |
break; |
| 528 |
|
| 529 |
case 'f': |
| 530 |
params.file = optarg; |
| 531 |
break; |
| 532 |
|
| 533 |
case 'C': |
| 534 |
params.cwd = optarg; |
| 535 |
break; |
| 536 |
|
| 537 |
case 'h': |
| 538 |
usage (); |
| 539 |
exit (0); |
| 540 |
|
| 541 |
case 'V': |
| 542 |
show_version (); |
| 543 |
exit (0); |
| 544 |
|
| 545 |
case '?': |
| 546 |
default: |
| 547 |
debug ("Unknown/Unhandled option: %c\n", opt); |
| 548 |
bzero (¶ms, sizeof (params)); |
| 549 |
exit (1); |
| 550 |
} |
| 551 |
} |
| 552 |
|
| 553 |
if (params.file != NULL) |
| 554 |
{ |
| 555 |
char *file = params.file; |
| 556 |
|
| 557 |
if ((params.mode == MODE_EXTRACT || params.mode == MODE_LIST)) |
| 558 |
{ |
| 559 |
params.file = realpath (file, NULL); |
| 560 |
|
| 561 |
if (params.file == NULL) |
| 562 |
{ |
| 563 |
perr ("failed to read '%s': %s\n", file, |
| 564 |
strerror (errno)); |
| 565 |
exit (1); |
| 566 |
} |
| 567 |
} |
| 568 |
else |
| 569 |
{ |
| 570 |
params.file = strdup (file); |
| 571 |
} |
| 572 |
} |
| 573 |
|
| 574 |
if (params.cwd != NULL) |
| 575 |
{ |
| 576 |
if (params.mode == MODE_LIST) |
| 577 |
{ |
| 578 |
params.cwd = NULL; |
| 579 |
perr ("option '-C' or '--directory' does not make sense in " |
| 580 |
"list mode\n"); |
| 581 |
exit (1); |
| 582 |
} |
| 583 |
|
| 584 |
char *dir = params.cwd; |
| 585 |
params.cwd = realpath (dir, NULL); |
| 586 |
|
| 587 |
if (params.cwd == NULL) |
| 588 |
{ |
| 589 |
perr ("failed to change working directory to '%s': %s\n", |
| 590 |
dir, strerror (errno)); |
| 591 |
exit (1); |
| 592 |
} |
| 593 |
} |
| 594 |
|
| 595 |
if (params.verbose) |
| 596 |
{ |
| 597 |
debug ("Summary of options:\n"); |
| 598 |
debug (" mode: %s\n", params.mode == MODE_CREATE ? "create" |
| 599 |
: params.mode == MODE_EXTRACT ? "extract" |
| 600 |
: "list"); |
| 601 |
debug (" verbose: %s\n", params.verbose ? "yes" : "no"); |
| 602 |
debug (" file: %s\n", params.file); |
| 603 |
debug (" working directory: %s\n", params.cwd); |
| 604 |
} |
| 605 |
|
| 606 |
switch (params.mode) |
| 607 |
{ |
| 608 |
case MODE_CREATE: |
| 609 |
if (params.file == NULL) |
| 610 |
{ |
| 611 |
perr ("no archive file name specified\n"); |
| 612 |
exit (1); |
| 613 |
} |
| 614 |
|
| 615 |
for (int i = optind; i < argc; i++) |
| 616 |
{ |
| 617 |
char *path = realpath (argv[i], NULL); |
| 618 |
|
| 619 |
if (path == NULL) |
| 620 |
{ |
| 621 |
perr ("failed to read '%s': %s\n", argv[i], |
| 622 |
strerror (errno)); |
| 623 |
exit (1); |
| 624 |
} |
| 625 |
|
| 626 |
params.targets |
| 627 |
= xrealloc (params.targets, |
| 628 |
(params.ntargets + 1) * sizeof (char *)); |
| 629 |
params.targets[params.ntargets] = path; |
| 630 |
params.ntargets++; |
| 631 |
} |
| 632 |
|
| 633 |
params.rtargets = argv + optind; |
| 634 |
|
| 635 |
if (params.ntargets == 0) |
| 636 |
{ |
| 637 |
perr ("no files or directories specified\n"); |
| 638 |
exit (1); |
| 639 |
} |
| 640 |
|
| 641 |
create_archive (); |
| 642 |
break; |
| 643 |
|
| 644 |
case MODE_EXTRACT: |
| 645 |
if (params.file == NULL) |
| 646 |
{ |
| 647 |
perr ("no archive file specified\n"); |
| 648 |
exit (1); |
| 649 |
} |
| 650 |
|
| 651 |
extract_archive (); |
| 652 |
break; |
| 653 |
|
| 654 |
case MODE_LIST: |
| 655 |
if (params.file == NULL) |
| 656 |
{ |
| 657 |
perr ("no archive file specified\n"); |
| 658 |
exit (1); |
| 659 |
} |
| 660 |
|
| 661 |
list_archive (); |
| 662 |
break; |
| 663 |
|
| 664 |
default: |
| 665 |
usage (); |
| 666 |
exit (1); |
| 667 |
} |
| 668 |
|
| 669 |
return 0; |
| 670 |
} |
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