| 1 | /* Pexecute test program, |
| 2 | Copyright (C) 2005-2020 Free Software Foundation, Inc. |
| 3 | Written by Ian Lance Taylor <ian@airs.com>. |
| 4 | |
| 5 | This file is part of GNU libiberty. |
| 6 | |
| 7 | This program is free software; you can redistribute it and/or modify |
| 8 | it under the terms of the GNU General Public License as published by |
| 9 | the Free Software Foundation; either version 2 of the License, or |
| 10 | (at your option) any later version. |
| 11 | |
| 12 | This program is distributed in the hope that it will be useful, |
| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | GNU General Public License for more details. |
| 16 | |
| 17 | You should have received a copy of the GNU General Public License |
| 18 | along with this program; if not, write to the Free Software |
| 19 | Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
| 20 | */ |
| 21 | |
| 22 | #ifdef HAVE_CONFIG_H |
| 23 | #include "config.h" |
| 24 | #endif |
| 25 | #include "ansidecl.h" |
| 26 | #include "libiberty.h" |
| 27 | #include <stdio.h> |
| 28 | #include <signal.h> |
| 29 | #include <errno.h> |
| 30 | #ifdef HAVE_STRING_H |
| 31 | #include <string.h> |
| 32 | #endif |
| 33 | #include <sys/types.h> |
| 34 | #ifdef HAVE_STDLIB_H |
| 35 | #include <stdlib.h> |
| 36 | #endif |
| 37 | #ifdef HAVE_UNISTD_H |
| 38 | #include <unistd.h> |
| 39 | #endif |
| 40 | #ifdef HAVE_SYS_WAIT_H |
| 41 | #include <sys/wait.h> |
| 42 | #endif |
| 43 | #ifdef HAVE_SYS_TIME_H |
| 44 | #include <sys/time.h> |
| 45 | #endif |
| 46 | #ifdef HAVE_SYS_RESOURCE_H |
| 47 | #include <sys/resource.h> |
| 48 | #endif |
| 49 | |
| 50 | #ifndef WIFSIGNALED |
| 51 | #define WIFSIGNALED(S) (((S) & 0xff) != 0 && ((S) & 0xff) != 0x7f) |
| 52 | #endif |
| 53 | #ifndef WTERMSIG |
| 54 | #define WTERMSIG(S) ((S) & 0x7f) |
| 55 | #endif |
| 56 | #ifndef WIFEXITED |
| 57 | #define WIFEXITED(S) (((S) & 0xff) == 0) |
| 58 | #endif |
| 59 | #ifndef WEXITSTATUS |
| 60 | #define WEXITSTATUS(S) (((S) & 0xff00) >> 8) |
| 61 | #endif |
| 62 | #ifndef WSTOPSIG |
| 63 | #define WSTOPSIG WEXITSTATUS |
| 64 | #endif |
| 65 | #ifndef WCOREDUMP |
| 66 | #define WCOREDUMP(S) ((S) & WCOREFLG) |
| 67 | #endif |
| 68 | #ifndef WCOREFLG |
| 69 | #define WCOREFLG 0200 |
| 70 | #endif |
| 71 | |
| 72 | #ifndef EXIT_SUCCESS |
| 73 | #define EXIT_SUCCESS 0 |
| 74 | #endif |
| 75 | |
| 76 | #ifndef EXIT_FAILURE |
| 77 | #define EXIT_FAILURE 1 |
| 78 | #endif |
| 79 | |
| 80 | /* When this program is run with no arguments, it runs some tests of |
| 81 | the libiberty pexecute functions. As a test program, it simply |
| 82 | invokes itself with various arguments. |
| 83 | |
| 84 | argv[1]: |
| 85 | *empty string* Run tests, exit with success status |
| 86 | exit Exit success |
| 87 | error Exit error |
| 88 | abort Abort |
| 89 | echo Echo remaining arguments, exit success |
| 90 | echoerr Echo next arg to stdout, next to stderr, repeat |
| 91 | copy Copy stdin to stdout |
| 92 | write Write stdin to file named in next argument |
| 93 | */ |
| 94 | |
| 95 | static void fatal_error (int, const char *, int) ATTRIBUTE_NORETURN; |
| 96 | static void error (int, const char *); |
| 97 | static void check_line (int, FILE *, const char *); |
| 98 | static void do_cmd (int, char **) ATTRIBUTE_NORETURN; |
| 99 | |
| 100 | /* The number of errors we have seen. */ |
| 101 | |
| 102 | static int error_count; |
| 103 | |
| 104 | /* Print a fatal error and exit. LINE is the line number where we |
| 105 | detected the error, ERRMSG is the error message to print, and ERR |
| 106 | is 0 or an errno value to print. */ |
| 107 | |
| 108 | static void |
| 109 | fatal_error (int line, const char *errmsg, int err) |
| 110 | { |
| 111 | fprintf (stderr, "test-pexecute:%d: %s", line, errmsg); |
| 112 | if (errno != 0) |
| 113 | fprintf (stderr, ": %s", xstrerror (err)); |
| 114 | fprintf (stderr, "\n"); |
| 115 | exit (EXIT_FAILURE); |
| 116 | } |
| 117 | |
| 118 | #define FATAL_ERROR(ERRMSG, ERR) fatal_error (__LINE__, ERRMSG, ERR) |
| 119 | |
| 120 | /* Print an error message and bump the error count. LINE is the line |
| 121 | number where we detected the error, ERRMSG is the error to |
| 122 | print. */ |
| 123 | |
| 124 | static void |
| 125 | error (int line, const char *errmsg) |
| 126 | { |
| 127 | fprintf (stderr, "test-pexecute:%d: %s\n", line, errmsg); |
| 128 | ++error_count; |
| 129 | } |
| 130 | |
| 131 | #define ERROR(ERRMSG) error (__LINE__, ERRMSG) |
| 132 | |
| 133 | /* Check a line in a file. */ |
| 134 | |
| 135 | static void |
| 136 | check_line (int line, FILE *e, const char *str) |
| 137 | { |
| 138 | const char *p; |
| 139 | int c; |
| 140 | char buf[1000]; |
| 141 | |
| 142 | p = str; |
| 143 | while (1) |
| 144 | { |
| 145 | c = getc (e); |
| 146 | |
| 147 | if (*p == '\0') |
| 148 | { |
| 149 | if (c != '\n') |
| 150 | { |
| 151 | snprintf (buf, sizeof buf, "got '%c' when expecting newline", c); |
| 152 | fatal_error (line, buf, 0); |
| 153 | } |
| 154 | c = getc (e); |
| 155 | if (c != EOF) |
| 156 | { |
| 157 | snprintf (buf, sizeof buf, "got '%c' when expecting EOF", c); |
| 158 | fatal_error (line, buf, 0); |
| 159 | } |
| 160 | return; |
| 161 | } |
| 162 | |
| 163 | if (c != *p) |
| 164 | { |
| 165 | snprintf (buf, sizeof buf, "expected '%c', got '%c'", *p, c); |
| 166 | fatal_error (line, buf, 0); |
| 167 | } |
| 168 | |
| 169 | ++p; |
| 170 | } |
| 171 | } |
| 172 | |
| 173 | #define CHECK_LINE(E, STR) check_line (__LINE__, E, STR) |
| 174 | |
| 175 | /* Main function for the pexecute tester. Run the tests. */ |
| 176 | |
| 177 | int |
| 178 | main (int argc, char **argv) |
| 179 | { |
| 180 | int trace; |
| 181 | struct pex_obj *test_pex_tmp; |
| 182 | int test_pex_status; |
| 183 | FILE *test_pex_file; |
| 184 | struct pex_obj *pex1; |
| 185 | char *subargv[10]; |
| 186 | int status; |
| 187 | FILE *e; |
| 188 | int statuses[10]; |
| 189 | |
| 190 | trace = 0; |
| 191 | if (argc > 1 && strcmp (argv[1], "-t") == 0) |
| 192 | { |
| 193 | trace = 1; |
| 194 | --argc; |
| 195 | ++argv; |
| 196 | } |
| 197 | |
| 198 | if (argc > 1) |
| 199 | do_cmd (argc, argv); |
| 200 | |
| 201 | #define TEST_PEX_INIT(FLAGS, TEMPBASE) \ |
| 202 | (((test_pex_tmp = pex_init (FLAGS, "test-pexecute", TEMPBASE)) \ |
| 203 | != NULL) \ |
| 204 | ? test_pex_tmp \ |
| 205 | : (FATAL_ERROR ("pex_init failed", 0), NULL)) |
| 206 | |
| 207 | #define TEST_PEX_RUN(PEXOBJ, FLAGS, EXECUTABLE, ARGV, OUTNAME, ERRNAME) \ |
| 208 | do \ |
| 209 | { \ |
| 210 | int err; \ |
| 211 | const char *pex_run_err; \ |
| 212 | if (trace) \ |
| 213 | fprintf (stderr, "Line %d: running %s %s\n", \ |
| 214 | __LINE__, EXECUTABLE, ARGV[0]); \ |
| 215 | pex_run_err = pex_run (PEXOBJ, FLAGS, EXECUTABLE, ARGV, OUTNAME, \ |
| 216 | ERRNAME, &err); \ |
| 217 | if (pex_run_err != NULL) \ |
| 218 | FATAL_ERROR (pex_run_err, err); \ |
| 219 | } \ |
| 220 | while (0) |
| 221 | |
| 222 | #define TEST_PEX_GET_STATUS_1(PEXOBJ) \ |
| 223 | (pex_get_status (PEXOBJ, 1, &test_pex_status) \ |
| 224 | ? test_pex_status \ |
| 225 | : (FATAL_ERROR ("pex_get_status failed", errno), 1)) |
| 226 | |
| 227 | #define TEST_PEX_GET_STATUS(PEXOBJ, COUNT, VECTOR) \ |
| 228 | do \ |
| 229 | { \ |
| 230 | if (!pex_get_status (PEXOBJ, COUNT, VECTOR)) \ |
| 231 | FATAL_ERROR ("pex_get_status failed", errno); \ |
| 232 | } \ |
| 233 | while (0) |
| 234 | |
| 235 | #define TEST_PEX_READ_OUTPUT(PEXOBJ) \ |
| 236 | ((test_pex_file = pex_read_output (PEXOBJ, 0)) != NULL \ |
| 237 | ? test_pex_file \ |
| 238 | : (FATAL_ERROR ("pex_read_output failed", errno), NULL)) |
| 239 | |
| 240 | remove ("temp.x"); |
| 241 | remove ("temp.y"); |
| 242 | |
| 243 | memset (subargv, 0, sizeof subargv); |
| 244 | |
| 245 | subargv[0] = "./test-pexecute"; |
| 246 | |
| 247 | pex1 = TEST_PEX_INIT (PEX_USE_PIPES, NULL); |
| 248 | subargv[1] = "exit"; |
| 249 | subargv[2] = NULL; |
| 250 | TEST_PEX_RUN (pex1, PEX_LAST, "./test-pexecute", subargv, NULL, NULL); |
| 251 | status = TEST_PEX_GET_STATUS_1 (pex1); |
| 252 | if (!WIFEXITED (status) || WEXITSTATUS (status) != EXIT_SUCCESS) |
| 253 | ERROR ("exit failed"); |
| 254 | pex_free (pex1); |
| 255 | |
| 256 | pex1 = TEST_PEX_INIT (PEX_USE_PIPES, NULL); |
| 257 | subargv[1] = "error"; |
| 258 | subargv[2] = NULL; |
| 259 | TEST_PEX_RUN (pex1, PEX_LAST, "./test-pexecute", subargv, NULL, NULL); |
| 260 | status = TEST_PEX_GET_STATUS_1 (pex1); |
| 261 | if (!WIFEXITED (status) || WEXITSTATUS (status) != EXIT_FAILURE) |
| 262 | ERROR ("error test failed"); |
| 263 | pex_free (pex1); |
| 264 | |
| 265 | /* We redirect stderr to a file to avoid an error message which is |
| 266 | printed on mingw32 when the child calls abort. */ |
| 267 | pex1 = TEST_PEX_INIT (PEX_USE_PIPES, NULL); |
| 268 | subargv[1] = "abort"; |
| 269 | subargv[2] = NULL; |
| 270 | TEST_PEX_RUN (pex1, PEX_LAST, "./test-pexecute", subargv, NULL, "temp.z"); |
| 271 | status = TEST_PEX_GET_STATUS_1 (pex1); |
| 272 | if (!WIFSIGNALED (status) || WTERMSIG (status) != SIGABRT) |
| 273 | ERROR ("abort failed"); |
| 274 | pex_free (pex1); |
| 275 | remove ("temp.z"); |
| 276 | |
| 277 | pex1 = TEST_PEX_INIT (PEX_USE_PIPES, "temp"); |
| 278 | subargv[1] = "echo"; |
| 279 | subargv[2] = "foo"; |
| 280 | subargv[3] = NULL; |
| 281 | TEST_PEX_RUN (pex1, 0, "./test-pexecute", subargv, NULL, NULL); |
| 282 | e = TEST_PEX_READ_OUTPUT (pex1); |
| 283 | CHECK_LINE (e, "foo"); |
| 284 | if (TEST_PEX_GET_STATUS_1 (pex1) != 0) |
| 285 | ERROR ("echo exit status failed"); |
| 286 | pex_free (pex1); |
| 287 | |
| 288 | /* Check empty parameters don't get lost. */ |
| 289 | pex1 = TEST_PEX_INIT (PEX_USE_PIPES, "temp"); |
| 290 | subargv[1] = "echo"; |
| 291 | subargv[2] = "foo"; |
| 292 | subargv[3] = ""; |
| 293 | subargv[4] = "bar"; |
| 294 | subargv[5] = NULL; |
| 295 | TEST_PEX_RUN (pex1, 0, "./test-pexecute", subargv, NULL, NULL); |
| 296 | e = TEST_PEX_READ_OUTPUT (pex1); |
| 297 | CHECK_LINE (e, "foo bar"); /* Two spaces! */ |
| 298 | if (TEST_PEX_GET_STATUS_1 (pex1) != 0) |
| 299 | ERROR ("echo exit status failed"); |
| 300 | pex_free (pex1); |
| 301 | |
| 302 | pex1 = TEST_PEX_INIT (PEX_USE_PIPES, "temp"); |
| 303 | subargv[1] = "echo"; |
| 304 | subargv[2] = "bar"; |
| 305 | subargv[3] = NULL; |
| 306 | TEST_PEX_RUN (pex1, PEX_SUFFIX, "./test-pexecute", subargv, ".x", NULL); |
| 307 | subargv[1] = "copy"; |
| 308 | subargv[2] = NULL; |
| 309 | TEST_PEX_RUN (pex1, PEX_SUFFIX, "./test-pexecute", subargv, ".y", NULL); |
| 310 | e = TEST_PEX_READ_OUTPUT (pex1); |
| 311 | CHECK_LINE (e, "bar"); |
| 312 | TEST_PEX_GET_STATUS (pex1, 2, statuses); |
| 313 | if (!WIFEXITED (statuses[0]) || WEXITSTATUS (statuses[0]) != EXIT_SUCCESS |
| 314 | || !WIFEXITED (statuses[1]) || WEXITSTATUS (statuses[1]) != EXIT_SUCCESS) |
| 315 | ERROR ("copy exit status failed"); |
| 316 | pex_free (pex1); |
| 317 | if (fopen ("temp.x", "r") != NULL || fopen ("temp.y", "r") != NULL) |
| 318 | ERROR ("temporary files exist"); |
| 319 | |
| 320 | pex1 = TEST_PEX_INIT (0, "temp"); |
| 321 | subargv[1] = "echo"; |
| 322 | subargv[2] = "bar"; |
| 323 | subargv[3] = NULL; |
| 324 | TEST_PEX_RUN (pex1, PEX_SUFFIX, "./test-pexecute", subargv, ".x", NULL); |
| 325 | subargv[1] = "copy"; |
| 326 | subargv[2] = NULL; |
| 327 | TEST_PEX_RUN (pex1, PEX_SUFFIX, "./test-pexecute", subargv, ".y", NULL); |
| 328 | e = TEST_PEX_READ_OUTPUT (pex1); |
| 329 | CHECK_LINE (e, "bar"); |
| 330 | TEST_PEX_GET_STATUS (pex1, 2, statuses); |
| 331 | if (!WIFEXITED (statuses[0]) || WEXITSTATUS (statuses[0]) != EXIT_SUCCESS |
| 332 | || !WIFEXITED (statuses[1]) || WEXITSTATUS (statuses[1]) != EXIT_SUCCESS) |
| 333 | ERROR ("copy exit status failed"); |
| 334 | pex_free (pex1); |
| 335 | if (fopen ("temp.x", "r") != NULL || fopen ("temp.y", "r") != NULL) |
| 336 | ERROR ("temporary files exist"); |
| 337 | |
| 338 | pex1 = TEST_PEX_INIT (PEX_SAVE_TEMPS, "temp"); |
| 339 | subargv[1] = "echo"; |
| 340 | subargv[2] = "quux"; |
| 341 | subargv[3] = NULL; |
| 342 | TEST_PEX_RUN (pex1, PEX_SUFFIX, "./test-pexecute", subargv, ".x", NULL); |
| 343 | subargv[1] = "copy"; |
| 344 | subargv[2] = NULL; |
| 345 | TEST_PEX_RUN (pex1, PEX_SUFFIX, "./test-pexecute", subargv, ".y", NULL); |
| 346 | e = TEST_PEX_READ_OUTPUT (pex1); |
| 347 | CHECK_LINE (e, "quux"); |
| 348 | TEST_PEX_GET_STATUS (pex1, 2, statuses); |
| 349 | if (!WIFEXITED (statuses[0]) || WEXITSTATUS (statuses[0]) != EXIT_SUCCESS |
| 350 | || !WIFEXITED (statuses[1]) || WEXITSTATUS (statuses[1]) != EXIT_SUCCESS) |
| 351 | ERROR ("copy temp exit status failed"); |
| 352 | e = fopen ("temp.x", "r"); |
| 353 | if (e == NULL) |
| 354 | FATAL_ERROR ("fopen temp.x failed in copy temp", errno); |
| 355 | CHECK_LINE (e, "quux"); |
| 356 | fclose (e); |
| 357 | e = fopen ("temp.y", "r"); |
| 358 | if (e == NULL) |
| 359 | FATAL_ERROR ("fopen temp.y failed in copy temp", errno); |
| 360 | CHECK_LINE (e, "quux"); |
| 361 | fclose (e); |
| 362 | pex_free (pex1); |
| 363 | remove ("temp.x"); |
| 364 | remove ("temp.y"); |
| 365 | |
| 366 | pex1 = TEST_PEX_INIT (PEX_USE_PIPES, "temp"); |
| 367 | subargv[1] = "echoerr"; |
| 368 | subargv[2] = "one"; |
| 369 | subargv[3] = "two"; |
| 370 | subargv[4] = NULL; |
| 371 | TEST_PEX_RUN (pex1, PEX_SUFFIX, "./test-pexecute", subargv, ".x", "temp2.x"); |
| 372 | subargv[1] = "write"; |
| 373 | subargv[2] = "temp2.y"; |
| 374 | subargv[3] = NULL; |
| 375 | TEST_PEX_RUN (pex1, PEX_SUFFIX, "./test-pexecute", subargv, ".y", NULL); |
| 376 | TEST_PEX_GET_STATUS (pex1, 2, statuses); |
| 377 | if (!WIFEXITED (statuses[0]) || WEXITSTATUS (statuses[0]) != EXIT_SUCCESS |
| 378 | || !WIFEXITED (statuses[1]) || WEXITSTATUS (statuses[1]) != EXIT_SUCCESS) |
| 379 | ERROR ("echoerr exit status failed"); |
| 380 | pex_free (pex1); |
| 381 | if (fopen ("temp.x", "r") != NULL || fopen ("temp.y", "r") != NULL) |
| 382 | ERROR ("temporary files exist"); |
| 383 | e = fopen ("temp2.x", "r"); |
| 384 | if (e == NULL) |
| 385 | FATAL_ERROR ("fopen temp2.x failed in echoerr", errno); |
| 386 | CHECK_LINE (e, "two"); |
| 387 | fclose (e); |
| 388 | e = fopen ("temp2.y", "r"); |
| 389 | if (e == NULL) |
| 390 | FATAL_ERROR ("fopen temp2.y failed in echoerr", errno); |
| 391 | CHECK_LINE (e, "one"); |
| 392 | fclose (e); |
| 393 | remove ("temp2.x"); |
| 394 | remove ("temp2.y"); |
| 395 | |
| 396 | /* Test the old pexecute interface. */ |
| 397 | { |
| 398 | int pid1, pid2; |
| 399 | char *errmsg_fmt; |
| 400 | char *errmsg_arg; |
| 401 | char errbuf1[1000]; |
| 402 | char errbuf2[1000]; |
| 403 | |
| 404 | subargv[1] = "echo"; |
| 405 | subargv[2] = "oldpexecute"; |
| 406 | subargv[3] = NULL; |
| 407 | pid1 = pexecute ("./test-pexecute", subargv, "test-pexecute", "temp", |
| 408 | &errmsg_fmt, &errmsg_arg, PEXECUTE_FIRST); |
| 409 | if (pid1 < 0) |
| 410 | { |
| 411 | snprintf (errbuf1, sizeof errbuf1, errmsg_fmt, errmsg_arg); |
| 412 | snprintf (errbuf2, sizeof errbuf2, "pexecute 1 failed: %s", errbuf1); |
| 413 | FATAL_ERROR (errbuf2, 0); |
| 414 | } |
| 415 | |
| 416 | subargv[1] = "write"; |
| 417 | subargv[2] = "temp.y"; |
| 418 | subargv[3] = NULL; |
| 419 | pid2 = pexecute ("./test-pexecute", subargv, "test-pexecute", "temp", |
| 420 | &errmsg_fmt, &errmsg_arg, PEXECUTE_LAST); |
| 421 | if (pid2 < 0) |
| 422 | { |
| 423 | snprintf (errbuf1, sizeof errbuf1, errmsg_fmt, errmsg_arg); |
| 424 | snprintf (errbuf2, sizeof errbuf2, "pexecute 2 failed: %s", errbuf1); |
| 425 | FATAL_ERROR (errbuf2, 0); |
| 426 | } |
| 427 | |
| 428 | if (pwait (pid1, &status, 0) < 0) |
| 429 | FATAL_ERROR ("write pwait 1 failed", errno); |
| 430 | if (!WIFEXITED (status) || WEXITSTATUS (status) != EXIT_SUCCESS) |
| 431 | ERROR ("write exit status 1 failed"); |
| 432 | |
| 433 | if (pwait (pid2, &status, 0) < 0) |
| 434 | FATAL_ERROR ("write pwait 1 failed", errno); |
| 435 | if (!WIFEXITED (status) || WEXITSTATUS (status) != EXIT_SUCCESS) |
| 436 | ERROR ("write exit status 2 failed"); |
| 437 | |
| 438 | e = fopen ("temp.y", "r"); |
| 439 | if (e == NULL) |
| 440 | FATAL_ERROR ("fopen temp.y failed in copy temp", errno); |
| 441 | CHECK_LINE (e, "oldpexecute"); |
| 442 | fclose (e); |
| 443 | |
| 444 | remove ("temp.y"); |
| 445 | } |
| 446 | |
| 447 | if (trace) |
| 448 | fprintf (stderr, "Exiting with status %d\n", error_count); |
| 449 | |
| 450 | return error_count; |
| 451 | } |
| 452 | |
| 453 | /* Execute one of the special testing commands. */ |
| 454 | |
| 455 | static void |
| 456 | do_cmd (int argc, char **argv) |
| 457 | { |
| 458 | const char *s; |
| 459 | |
| 460 | /* Try to prevent generating a core dump. */ |
| 461 | #ifdef RLIMIT_CORE |
| 462 | { |
| 463 | struct rlimit r; |
| 464 | |
| 465 | r.rlim_cur = 0; |
| 466 | r.rlim_max = 0; |
| 467 | setrlimit (RLIMIT_CORE, &r); |
| 468 | } |
| 469 | #endif |
| 470 | |
| 471 | s = argv[1]; |
| 472 | if (strcmp (s, "exit") == 0) |
| 473 | exit (EXIT_SUCCESS); |
| 474 | else if (strcmp (s, "echo") == 0) |
| 475 | { |
| 476 | int i; |
| 477 | |
| 478 | for (i = 2; i < argc; ++i) |
| 479 | { |
| 480 | if (i > 2) |
| 481 | putchar (' '); |
| 482 | fputs (argv[i], stdout); |
| 483 | } |
| 484 | putchar ('\n'); |
| 485 | exit (EXIT_SUCCESS); |
| 486 | } |
| 487 | else if (strcmp (s, "echoerr") == 0) |
| 488 | { |
| 489 | int i; |
| 490 | |
| 491 | for (i = 2; i < argc; ++i) |
| 492 | { |
| 493 | if (i > 3) |
| 494 | putc (' ', (i & 1) == 0 ? stdout : stderr); |
| 495 | fputs (argv[i], (i & 1) == 0 ? stdout : stderr); |
| 496 | } |
| 497 | putc ('\n', stdout); |
| 498 | putc ('\n', stderr); |
| 499 | exit (EXIT_SUCCESS); |
| 500 | } |
| 501 | else if (strcmp (s, "error") == 0) |
| 502 | exit (EXIT_FAILURE); |
| 503 | else if (strcmp (s, "abort") == 0) |
| 504 | abort (); |
| 505 | else if (strcmp (s, "copy") == 0) |
| 506 | { |
| 507 | int c; |
| 508 | |
| 509 | while ((c = getchar ()) != EOF) |
| 510 | putchar (c); |
| 511 | exit (EXIT_SUCCESS); |
| 512 | } |
| 513 | else if (strcmp (s, "write") == 0) |
| 514 | { |
| 515 | FILE *e; |
| 516 | int c; |
| 517 | |
| 518 | e = fopen (argv[2], "w"); |
| 519 | if (e == NULL) |
| 520 | FATAL_ERROR ("fopen for write failed", errno); |
| 521 | while ((c = getchar ()) != EOF) |
| 522 | putc (c, e); |
| 523 | if (fclose (e) != 0) |
| 524 | FATAL_ERROR ("fclose for write failed", errno); |
| 525 | exit (EXIT_SUCCESS); |
| 526 | } |
| 527 | else |
| 528 | { |
| 529 | char buf[1000]; |
| 530 | |
| 531 | snprintf (buf, sizeof buf, "unrecognized command %s", argv[1]); |
| 532 | FATAL_ERROR (buf, 0); |
| 533 | } |
| 534 | |
| 535 | exit (EXIT_FAILURE); |
| 536 | } |