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Commit | Line | Data |
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3185942a | 1 | /* test.c - GNU test program (ksb and mjb) */ |
726f6388 JA |
2 | |
3 | /* Modified to run with the GNU shell Apr 25, 1988 by bfox. */ | |
4 | ||
495aee44 | 5 | /* Copyright (C) 1987-2010 Free Software Foundation, Inc. |
726f6388 JA |
6 | |
7 | This file is part of GNU Bash, the Bourne Again SHell. | |
8 | ||
3185942a JA |
9 | Bash is free software: you can redistribute it and/or modify |
10 | it under the terms of the GNU General Public License as published by | |
11 | the Free Software Foundation, either version 3 of the License, or | |
12 | (at your option) any later version. | |
726f6388 | 13 | |
3185942a JA |
14 | Bash is distributed in the hope that it will be useful, |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
726f6388 | 18 | |
3185942a JA |
19 | You should have received a copy of the GNU General Public License |
20 | along with Bash. If not, see <http://www.gnu.org/licenses/>. | |
21 | */ | |
726f6388 | 22 | |
ccc6cda3 JA |
23 | /* Define PATTERN_MATCHING to get the csh-like =~ and !~ pattern-matching |
24 | binary operators. */ | |
25 | /* #define PATTERN_MATCHING */ | |
26 | ||
27 | #if defined (HAVE_CONFIG_H) | |
28 | # include <config.h> | |
29 | #endif | |
30 | ||
726f6388 | 31 | #include <stdio.h> |
ccc6cda3 | 32 | |
d166f048 | 33 | #include "bashtypes.h" |
ccc6cda3 | 34 | |
ac50fbac | 35 | #if !defined (HAVE_LIMITS_H) && defined (HAVE_SYS_PARAM_H) |
ccc6cda3 JA |
36 | # include <sys/param.h> |
37 | #endif | |
38 | ||
39 | #if defined (HAVE_UNISTD_H) | |
40 | # include <unistd.h> | |
41 | #endif | |
42 | ||
e8ce775d JA |
43 | #include <errno.h> |
44 | #if !defined (errno) | |
45 | extern int errno; | |
46 | #endif /* !errno */ | |
47 | ||
b80f6443 | 48 | #if !defined (_POSIX_VERSION) && defined (HAVE_SYS_FILE_H) |
ccc6cda3 JA |
49 | # include <sys/file.h> |
50 | #endif /* !_POSIX_VERSION */ | |
51 | #include "posixstat.h" | |
52 | #include "filecntl.h" | |
ac50fbac | 53 | #include "stat-time.h" |
726f6388 | 54 | |
b80f6443 JA |
55 | #include "bashintl.h" |
56 | ||
d166f048 | 57 | #include "shell.h" |
cce855bc JA |
58 | #include "pathexp.h" |
59 | #include "test.h" | |
d166f048 | 60 | #include "builtins/common.h" |
726f6388 | 61 | |
f73dda09 | 62 | #include <glob/strmatch.h> |
cce855bc | 63 | |
726f6388 JA |
64 | #if !defined (STRLEN) |
65 | # define STRLEN(s) ((s)[0] ? ((s)[1] ? ((s)[2] ? strlen(s) : 2) : 1) : 0) | |
66 | #endif | |
67 | ||
726f6388 | 68 | #if !defined (STREQ) |
0001803f | 69 | # define STREQ(a, b) ((a)[0] == (b)[0] && strcmp ((a), (b)) == 0) |
726f6388 | 70 | #endif /* !STREQ */ |
0001803f | 71 | #define STRCOLLEQ(a, b) ((a)[0] == (b)[0] && strcoll ((a), (b)) == 0) |
726f6388 | 72 | |
726f6388 JA |
73 | #if !defined (R_OK) |
74 | #define R_OK 4 | |
75 | #define W_OK 2 | |
76 | #define X_OK 1 | |
77 | #define F_OK 0 | |
78 | #endif /* R_OK */ | |
79 | ||
ccc6cda3 JA |
80 | #define EQ 0 |
81 | #define NE 1 | |
82 | #define LT 2 | |
83 | #define GT 3 | |
84 | #define LE 4 | |
85 | #define GE 5 | |
86 | ||
87 | #define NT 0 | |
88 | #define OT 1 | |
89 | #define EF 2 | |
90 | ||
726f6388 JA |
91 | /* The following few defines control the truth and false output of each stage. |
92 | TRUE and FALSE are what we use to compute the final output value. | |
93 | SHELL_BOOLEAN is the form which returns truth or falseness in shell terms. | |
ccc6cda3 | 94 | Default is TRUE = 1, FALSE = 0, SHELL_BOOLEAN = (!value). */ |
726f6388 JA |
95 | #define TRUE 1 |
96 | #define FALSE 0 | |
97 | #define SHELL_BOOLEAN(value) (!(value)) | |
726f6388 | 98 | |
b72432fd JA |
99 | #define TEST_ERREXIT_STATUS 2 |
100 | ||
ccc6cda3 JA |
101 | static procenv_t test_exit_buf; |
102 | static int test_error_return; | |
d166f048 | 103 | #define test_exit(val) \ |
a0c0a00f | 104 | do { test_error_return = val; sh_longjmp (test_exit_buf, 1); } while (0) |
726f6388 | 105 | |
0628567a | 106 | extern int sh_stat __P((const char *, struct stat *)); |
726f6388 JA |
107 | |
108 | static int pos; /* The offset of the current argument in ARGV. */ | |
109 | static int argc; /* The number of arguments present in ARGV. */ | |
110 | static char **argv; /* The argument list. */ | |
111 | static int noeval; | |
112 | ||
f73dda09 JA |
113 | static void test_syntax_error __P((char *, char *)) __attribute__((__noreturn__)); |
114 | static void beyond __P((void)) __attribute__((__noreturn__)); | |
115 | static void integer_expected_error __P((char *)) __attribute__((__noreturn__)); | |
116 | ||
f73dda09 JA |
117 | static int unary_operator __P((void)); |
118 | static int binary_operator __P((void)); | |
119 | static int two_arguments __P((void)); | |
120 | static int three_arguments __P((void)); | |
121 | static int posixtest __P((void)); | |
726f6388 | 122 | |
f73dda09 JA |
123 | static int expr __P((void)); |
124 | static int term __P((void)); | |
125 | static int and __P((void)); | |
126 | static int or __P((void)); | |
726f6388 | 127 | |
f73dda09 JA |
128 | static int filecomp __P((char *, char *, int)); |
129 | static int arithcomp __P((char *, char *, int, int)); | |
130 | static int patcomp __P((char *, char *, int)); | |
ccc6cda3 | 131 | |
726f6388 JA |
132 | static void |
133 | test_syntax_error (format, arg) | |
134 | char *format, *arg; | |
135 | { | |
7117c2d2 | 136 | builtin_error (format, arg); |
b72432fd | 137 | test_exit (TEST_ERREXIT_STATUS); |
726f6388 JA |
138 | } |
139 | ||
cce855bc JA |
140 | /* |
141 | * beyond - call when we're beyond the end of the argument list (an | |
142 | * error condition) | |
143 | */ | |
144 | static void | |
145 | beyond () | |
146 | { | |
b80f6443 | 147 | test_syntax_error (_("argument expected"), (char *)NULL); |
cce855bc JA |
148 | } |
149 | ||
150 | /* Syntax error for when an integer argument was expected, but | |
151 | something else was found. */ | |
152 | static void | |
153 | integer_expected_error (pch) | |
154 | char *pch; | |
155 | { | |
b80f6443 | 156 | test_syntax_error (_("%s: integer expression expected"), pch); |
cce855bc JA |
157 | } |
158 | ||
726f6388 | 159 | /* Increment our position in the argument list. Check that we're not |
ac50fbac | 160 | past the end of the argument list. This check is suppressed if the |
726f6388 | 161 | argument is FALSE. Made a macro for efficiency. */ |
726f6388 | 162 | #define advance(f) do { ++pos; if (f && pos >= argc) beyond (); } while (0) |
726f6388 JA |
163 | #define unary_advance() do { advance (1); ++pos; } while (0) |
164 | ||
165 | /* | |
cce855bc JA |
166 | * expr: |
167 | * or | |
726f6388 | 168 | */ |
cce855bc JA |
169 | static int |
170 | expr () | |
726f6388 | 171 | { |
cce855bc JA |
172 | if (pos >= argc) |
173 | beyond (); | |
174 | ||
175 | return (FALSE ^ or ()); /* Same with this. */ | |
726f6388 JA |
176 | } |
177 | ||
cce855bc JA |
178 | /* |
179 | * or: | |
180 | * and | |
181 | * and '-o' or | |
182 | */ | |
183 | static int | |
184 | or () | |
726f6388 | 185 | { |
cce855bc JA |
186 | int value, v2; |
187 | ||
188 | value = and (); | |
f73dda09 | 189 | if (pos < argc && argv[pos][0] == '-' && argv[pos][1] == 'o' && !argv[pos][2]) |
cce855bc JA |
190 | { |
191 | advance (0); | |
192 | v2 = or (); | |
193 | return (value || v2); | |
194 | } | |
195 | ||
196 | return (value); | |
197 | } | |
198 | ||
199 | /* | |
200 | * and: | |
201 | * term | |
202 | * term '-a' and | |
203 | */ | |
204 | static int | |
205 | and () | |
206 | { | |
207 | int value, v2; | |
208 | ||
209 | value = term (); | |
f73dda09 | 210 | if (pos < argc && argv[pos][0] == '-' && argv[pos][1] == 'a' && !argv[pos][2]) |
cce855bc JA |
211 | { |
212 | advance (0); | |
213 | v2 = and (); | |
214 | return (value && v2); | |
215 | } | |
216 | return (value); | |
726f6388 JA |
217 | } |
218 | ||
726f6388 JA |
219 | /* |
220 | * term - parse a term and return 1 or 0 depending on whether the term | |
221 | * evaluates to true or false, respectively. | |
222 | * | |
223 | * term ::= | |
cce855bc JA |
224 | * '-'('a'|'b'|'c'|'d'|'e'|'f'|'g'|'h'|'k'|'p'|'r'|'s'|'u'|'w'|'x') filename |
225 | * '-'('G'|'L'|'O'|'S'|'N') filename | |
ccc6cda3 | 226 | * '-t' [int] |
726f6388 | 227 | * '-'('z'|'n') string |
a0c0a00f | 228 | * '-'('v'|'R') varname |
cce855bc | 229 | * '-o' option |
726f6388 | 230 | * string |
ccc6cda3 | 231 | * string ('!='|'='|'==') string |
726f6388 JA |
232 | * <int> '-'(eq|ne|le|lt|ge|gt) <int> |
233 | * file '-'(nt|ot|ef) file | |
234 | * '(' <expr> ')' | |
235 | * int ::= | |
726f6388 JA |
236 | * positive and negative integers |
237 | */ | |
238 | static int | |
239 | term () | |
240 | { | |
241 | int value; | |
242 | ||
243 | if (pos >= argc) | |
244 | beyond (); | |
245 | ||
ccc6cda3 JA |
246 | /* Deal with leading `not's. */ |
247 | if (argv[pos][0] == '!' && argv[pos][1] == '\0') | |
726f6388 | 248 | { |
ccc6cda3 JA |
249 | value = 0; |
250 | while (pos < argc && argv[pos][0] == '!' && argv[pos][1] == '\0') | |
726f6388 JA |
251 | { |
252 | advance (1); | |
ccc6cda3 | 253 | value = 1 - value; |
726f6388 JA |
254 | } |
255 | ||
ccc6cda3 | 256 | return (value ? !term() : term()); |
726f6388 JA |
257 | } |
258 | ||
ccc6cda3 | 259 | /* A paren-bracketed argument. */ |
b80f6443 | 260 | if (argv[pos][0] == '(' && argv[pos][1] == '\0') /* ) */ |
726f6388 JA |
261 | { |
262 | advance (1); | |
263 | value = expr (); | |
b80f6443 JA |
264 | if (argv[pos] == 0) /* ( */ |
265 | test_syntax_error (_("`)' expected"), (char *)NULL); | |
266 | else if (argv[pos][0] != ')' || argv[pos][1]) /* ( */ | |
267 | test_syntax_error (_("`)' expected, found %s"), argv[pos]); | |
726f6388 | 268 | advance (0); |
ccc6cda3 | 269 | return (value); |
726f6388 JA |
270 | } |
271 | ||
272 | /* are there enough arguments left that this could be dyadic? */ | |
cce855bc | 273 | if ((pos + 3 <= argc) && test_binop (argv[pos + 1])) |
726f6388 JA |
274 | value = binary_operator (); |
275 | ||
276 | /* Might be a switch type argument */ | |
ccc6cda3 | 277 | else if (argv[pos][0] == '-' && argv[pos][2] == '\0') |
726f6388 | 278 | { |
cce855bc | 279 | if (test_unop (argv[pos])) |
726f6388 JA |
280 | value = unary_operator (); |
281 | else | |
b80f6443 | 282 | test_syntax_error (_("%s: unary operator expected"), argv[pos]); |
726f6388 JA |
283 | } |
284 | else | |
285 | { | |
ccc6cda3 | 286 | value = argv[pos][0] != '\0'; |
726f6388 JA |
287 | advance (0); |
288 | } | |
289 | ||
290 | return (value); | |
291 | } | |
292 | ||
ac50fbac CR |
293 | static int |
294 | stat_mtime (fn, st, ts) | |
295 | char *fn; | |
296 | struct stat *st; | |
297 | struct timespec *ts; | |
298 | { | |
299 | int r; | |
300 | ||
301 | r = sh_stat (fn, st); | |
302 | if (r < 0) | |
303 | return r; | |
304 | *ts = get_stat_mtime (st); | |
305 | return 0; | |
306 | } | |
307 | ||
726f6388 | 308 | static int |
ccc6cda3 JA |
309 | filecomp (s, t, op) |
310 | char *s, *t; | |
311 | int op; | |
726f6388 | 312 | { |
ccc6cda3 | 313 | struct stat st1, st2; |
ac50fbac | 314 | struct timespec ts1, ts2; |
7117c2d2 | 315 | int r1, r2; |
726f6388 | 316 | |
ac50fbac | 317 | if ((r1 = stat_mtime (s, &st1, &ts1)) < 0) |
28ef6c31 | 318 | { |
28ef6c31 JA |
319 | if (op == EF) |
320 | return (FALSE); | |
321 | } | |
ac50fbac | 322 | if ((r2 = stat_mtime (t, &st2, &ts2)) < 0) |
28ef6c31 | 323 | { |
28ef6c31 JA |
324 | if (op == EF) |
325 | return (FALSE); | |
326 | } | |
327 | ||
ccc6cda3 | 328 | switch (op) |
726f6388 | 329 | { |
ac50fbac CR |
330 | case OT: return (r1 < r2 || (r2 == 0 && timespec_cmp (ts1, ts2) < 0)); |
331 | case NT: return (r1 > r2 || (r1 == 0 && timespec_cmp (ts1, ts2) > 0)); | |
3185942a | 332 | case EF: return (same_file (s, t, &st1, &st2)); |
ccc6cda3 JA |
333 | } |
334 | return (FALSE); | |
335 | } | |
726f6388 | 336 | |
ccc6cda3 | 337 | static int |
cce855bc | 338 | arithcomp (s, t, op, flags) |
ccc6cda3 | 339 | char *s, *t; |
cce855bc | 340 | int op, flags; |
ccc6cda3 | 341 | { |
7117c2d2 | 342 | intmax_t l, r; |
cce855bc JA |
343 | int expok; |
344 | ||
345 | if (flags & TEST_ARITHEXP) | |
346 | { | |
347 | l = evalexp (s, &expok); | |
348 | if (expok == 0) | |
349 | return (FALSE); /* should probably longjmp here */ | |
350 | r = evalexp (t, &expok); | |
351 | if (expok == 0) | |
352 | return (FALSE); /* ditto */ | |
353 | } | |
354 | else | |
355 | { | |
356 | if (legal_number (s, &l) == 0) | |
357 | integer_expected_error (s); | |
358 | if (legal_number (t, &r) == 0) | |
359 | integer_expected_error (t); | |
360 | } | |
726f6388 | 361 | |
ccc6cda3 JA |
362 | switch (op) |
363 | { | |
364 | case EQ: return (l == r); | |
365 | case NE: return (l != r); | |
366 | case LT: return (l < r); | |
367 | case GT: return (l > r); | |
368 | case LE: return (l <= r); | |
369 | case GE: return (l >= r); | |
726f6388 | 370 | } |
cce855bc | 371 | |
ccc6cda3 JA |
372 | return (FALSE); |
373 | } | |
374 | ||
ccc6cda3 JA |
375 | static int |
376 | patcomp (string, pat, op) | |
377 | char *string, *pat; | |
378 | int op; | |
379 | { | |
380 | int m; | |
381 | ||
95732b49 | 382 | m = strmatch (pat, string, FNMATCH_EXTFLAG|FNMATCH_IGNCASE); |
cce855bc JA |
383 | return ((op == EQ) ? (m == 0) : (m != 0)); |
384 | } | |
385 | ||
386 | int | |
387 | binary_test (op, arg1, arg2, flags) | |
388 | char *op, *arg1, *arg2; | |
389 | int flags; | |
390 | { | |
391 | int patmatch; | |
392 | ||
393 | patmatch = (flags & TEST_PATMATCH); | |
394 | ||
395 | if (op[0] == '=' && (op[1] == '\0' || (op[1] == '=' && op[2] == '\0'))) | |
396 | return (patmatch ? patcomp (arg1, arg2, EQ) : STREQ (arg1, arg2)); | |
cce855bc | 397 | else if ((op[0] == '>' || op[0] == '<') && op[1] == '\0') |
0001803f | 398 | { |
ac50fbac | 399 | #if defined (HAVE_STRCOLL) |
0001803f CR |
400 | if (shell_compatibility_level > 40 && flags & TEST_LOCALE) |
401 | return ((op[0] == '>') ? (strcoll (arg1, arg2) > 0) : (strcoll (arg1, arg2) < 0)); | |
402 | else | |
ac50fbac | 403 | #endif |
0001803f CR |
404 | return ((op[0] == '>') ? (strcmp (arg1, arg2) > 0) : (strcmp (arg1, arg2) < 0)); |
405 | } | |
cce855bc JA |
406 | else if (op[0] == '!' && op[1] == '=' && op[2] == '\0') |
407 | return (patmatch ? patcomp (arg1, arg2, NE) : (STREQ (arg1, arg2) == 0)); | |
0001803f | 408 | |
cce855bc JA |
409 | |
410 | else if (op[2] == 't') | |
411 | { | |
412 | switch (op[1]) | |
413 | { | |
28ef6c31 JA |
414 | case 'n': return (filecomp (arg1, arg2, NT)); /* -nt */ |
415 | case 'o': return (filecomp (arg1, arg2, OT)); /* -ot */ | |
cce855bc JA |
416 | case 'l': return (arithcomp (arg1, arg2, LT, flags)); /* -lt */ |
417 | case 'g': return (arithcomp (arg1, arg2, GT, flags)); /* -gt */ | |
418 | } | |
419 | } | |
420 | else if (op[1] == 'e') | |
726f6388 | 421 | { |
cce855bc JA |
422 | switch (op[2]) |
423 | { | |
424 | case 'f': return (filecomp (arg1, arg2, EF)); /* -ef */ | |
425 | case 'q': return (arithcomp (arg1, arg2, EQ, flags)); /* -eq */ | |
426 | } | |
427 | } | |
428 | else if (op[2] == 'e') | |
429 | { | |
430 | switch (op[1]) | |
431 | { | |
432 | case 'n': return (arithcomp (arg1, arg2, NE, flags)); /* -ne */ | |
433 | case 'g': return (arithcomp (arg1, arg2, GE, flags)); /* -ge */ | |
434 | case 'l': return (arithcomp (arg1, arg2, LE, flags)); /* -le */ | |
435 | } | |
726f6388 | 436 | } |
cce855bc JA |
437 | |
438 | return (FALSE); /* should never get here */ | |
ccc6cda3 | 439 | } |
cce855bc | 440 | |
726f6388 | 441 | |
ccc6cda3 JA |
442 | static int |
443 | binary_operator () | |
444 | { | |
445 | int value; | |
446 | char *w; | |
447 | ||
448 | w = argv[pos + 1]; | |
cce855bc JA |
449 | if ((w[0] == '=' && (w[1] == '\0' || (w[1] == '=' && w[2] == '\0'))) || /* =, == */ |
450 | ((w[0] == '>' || w[0] == '<') && w[1] == '\0') || /* <, > */ | |
451 | (w[0] == '!' && w[1] == '=' && w[2] == '\0')) /* != */ | |
726f6388 | 452 | { |
cce855bc | 453 | value = binary_test (w, argv[pos], argv[pos + 2], 0); |
ccc6cda3 JA |
454 | pos += 3; |
455 | return (value); | |
456 | } | |
cce855bc | 457 | |
ccc6cda3 JA |
458 | #if defined (PATTERN_MATCHING) |
459 | if ((w[0] == '=' || w[0] == '!') && w[1] == '~' && w[2] == '\0') | |
460 | { | |
461 | value = patcomp (argv[pos], argv[pos + 2], w[0] == '=' ? EQ : NE); | |
462 | pos += 3; | |
463 | return (value); | |
464 | } | |
465 | #endif | |
ccc6cda3 | 466 | |
cce855bc | 467 | if ((w[0] != '-' || w[3] != '\0') || test_binop (w) == 0) |
ccc6cda3 | 468 | { |
b80f6443 | 469 | test_syntax_error (_("%s: binary operator expected"), w); |
ccc6cda3 JA |
470 | /* NOTREACHED */ |
471 | return (FALSE); | |
726f6388 | 472 | } |
726f6388 | 473 | |
cce855bc | 474 | value = binary_test (w, argv[pos], argv[pos + 2], 0); |
ccc6cda3 JA |
475 | pos += 3; |
476 | return value; | |
726f6388 JA |
477 | } |
478 | ||
479 | static int | |
480 | unary_operator () | |
481 | { | |
f73dda09 | 482 | char *op; |
7117c2d2 | 483 | intmax_t r; |
726f6388 | 484 | |
cce855bc JA |
485 | op = argv[pos]; |
486 | if (test_unop (op) == 0) | |
487 | return (FALSE); | |
488 | ||
489 | /* the only tricky case is `-t', which may or may not take an argument. */ | |
490 | if (op[1] == 't') | |
726f6388 | 491 | { |
cce855bc | 492 | advance (0); |
28ef6c31 | 493 | if (pos < argc) |
cce855bc | 494 | { |
28ef6c31 JA |
495 | if (legal_number (argv[pos], &r)) |
496 | { | |
497 | advance (0); | |
498 | return (unary_test (op, argv[pos - 1])); | |
499 | } | |
500 | else | |
501 | return (FALSE); | |
cce855bc JA |
502 | } |
503 | else | |
504 | return (unary_test (op, "1")); | |
505 | } | |
726f6388 | 506 | |
cce855bc JA |
507 | /* All of the unary operators take an argument, so we first call |
508 | unary_advance (), which checks to make sure that there is an | |
509 | argument, and then advances pos right past it. This means that | |
510 | pos - 1 is the location of the argument. */ | |
511 | unary_advance (); | |
512 | return (unary_test (op, argv[pos - 1])); | |
513 | } | |
726f6388 | 514 | |
cce855bc JA |
515 | int |
516 | unary_test (op, arg) | |
517 | char *op, *arg; | |
518 | { | |
7117c2d2 | 519 | intmax_t r; |
cce855bc | 520 | struct stat stat_buf; |
495aee44 | 521 | SHELL_VAR *v; |
cce855bc JA |
522 | |
523 | switch (op[1]) | |
524 | { | |
726f6388 JA |
525 | case 'a': /* file exists in the file system? */ |
526 | case 'e': | |
0628567a | 527 | return (sh_stat (arg, &stat_buf) == 0); |
726f6388 JA |
528 | |
529 | case 'r': /* file is readable? */ | |
0628567a | 530 | return (sh_eaccess (arg, R_OK) == 0); |
726f6388 JA |
531 | |
532 | case 'w': /* File is writeable? */ | |
0628567a | 533 | return (sh_eaccess (arg, W_OK) == 0); |
726f6388 JA |
534 | |
535 | case 'x': /* File is executable? */ | |
0628567a | 536 | return (sh_eaccess (arg, X_OK) == 0); |
726f6388 JA |
537 | |
538 | case 'O': /* File is owned by you? */ | |
0628567a | 539 | return (sh_stat (arg, &stat_buf) == 0 && |
d166f048 | 540 | (uid_t) current_user.euid == (uid_t) stat_buf.st_uid); |
726f6388 JA |
541 | |
542 | case 'G': /* File is owned by your group? */ | |
0628567a | 543 | return (sh_stat (arg, &stat_buf) == 0 && |
d166f048 | 544 | (gid_t) current_user.egid == (gid_t) stat_buf.st_gid); |
726f6388 | 545 | |
cce855bc | 546 | case 'N': |
0628567a | 547 | return (sh_stat (arg, &stat_buf) == 0 && |
cce855bc JA |
548 | stat_buf.st_atime <= stat_buf.st_mtime); |
549 | ||
726f6388 | 550 | case 'f': /* File is a file? */ |
0628567a | 551 | if (sh_stat (arg, &stat_buf) < 0) |
726f6388 JA |
552 | return (FALSE); |
553 | ||
ccc6cda3 | 554 | /* -f is true if the given file exists and is a regular file. */ |
726f6388 | 555 | #if defined (S_IFMT) |
ccc6cda3 | 556 | return (S_ISREG (stat_buf.st_mode) || (stat_buf.st_mode & S_IFMT) == 0); |
726f6388 | 557 | #else |
ccc6cda3 | 558 | return (S_ISREG (stat_buf.st_mode)); |
726f6388 JA |
559 | #endif /* !S_IFMT */ |
560 | ||
561 | case 'd': /* File is a directory? */ | |
0628567a | 562 | return (sh_stat (arg, &stat_buf) == 0 && (S_ISDIR (stat_buf.st_mode))); |
726f6388 JA |
563 | |
564 | case 's': /* File has something in it? */ | |
0628567a | 565 | return (sh_stat (arg, &stat_buf) == 0 && stat_buf.st_size > (off_t) 0); |
726f6388 JA |
566 | |
567 | case 'S': /* File is a socket? */ | |
568 | #if !defined (S_ISSOCK) | |
569 | return (FALSE); | |
570 | #else | |
0628567a | 571 | return (sh_stat (arg, &stat_buf) == 0 && S_ISSOCK (stat_buf.st_mode)); |
ccc6cda3 | 572 | #endif /* S_ISSOCK */ |
726f6388 JA |
573 | |
574 | case 'c': /* File is character special? */ | |
0628567a | 575 | return (sh_stat (arg, &stat_buf) == 0 && S_ISCHR (stat_buf.st_mode)); |
726f6388 JA |
576 | |
577 | case 'b': /* File is block special? */ | |
0628567a | 578 | return (sh_stat (arg, &stat_buf) == 0 && S_ISBLK (stat_buf.st_mode)); |
726f6388 JA |
579 | |
580 | case 'p': /* File is a named pipe? */ | |
726f6388 JA |
581 | #ifndef S_ISFIFO |
582 | return (FALSE); | |
583 | #else | |
0628567a | 584 | return (sh_stat (arg, &stat_buf) == 0 && S_ISFIFO (stat_buf.st_mode)); |
ccc6cda3 | 585 | #endif /* S_ISFIFO */ |
726f6388 JA |
586 | |
587 | case 'L': /* Same as -h */ | |
726f6388 | 588 | case 'h': /* File is a symbolic link? */ |
ccc6cda3 | 589 | #if !defined (S_ISLNK) || !defined (HAVE_LSTAT) |
726f6388 JA |
590 | return (FALSE); |
591 | #else | |
cce855bc JA |
592 | return ((arg[0] != '\0') && |
593 | (lstat (arg, &stat_buf) == 0) && S_ISLNK (stat_buf.st_mode)); | |
ccc6cda3 | 594 | #endif /* S_IFLNK && HAVE_LSTAT */ |
726f6388 JA |
595 | |
596 | case 'u': /* File is setuid? */ | |
0628567a | 597 | return (sh_stat (arg, &stat_buf) == 0 && (stat_buf.st_mode & S_ISUID) != 0); |
726f6388 JA |
598 | |
599 | case 'g': /* File is setgid? */ | |
0628567a | 600 | return (sh_stat (arg, &stat_buf) == 0 && (stat_buf.st_mode & S_ISGID) != 0); |
726f6388 JA |
601 | |
602 | case 'k': /* File has sticky bit set? */ | |
726f6388 JA |
603 | #if !defined (S_ISVTX) |
604 | /* This is not Posix, and is not defined on some Posix systems. */ | |
605 | return (FALSE); | |
606 | #else | |
0628567a | 607 | return (sh_stat (arg, &stat_buf) == 0 && (stat_buf.st_mode & S_ISVTX) != 0); |
726f6388 JA |
608 | #endif |
609 | ||
cce855bc JA |
610 | case 't': /* File fd is a terminal? */ |
611 | if (legal_number (arg, &r) == 0) | |
612 | return (FALSE); | |
f73dda09 | 613 | return ((r == (int)r) && isatty ((int)r)); |
726f6388 JA |
614 | |
615 | case 'n': /* True if arg has some length. */ | |
cce855bc | 616 | return (arg[0] != '\0'); |
726f6388 JA |
617 | |
618 | case 'z': /* True if arg has no length. */ | |
cce855bc | 619 | return (arg[0] == '\0'); |
726f6388 | 620 | |
cce855bc JA |
621 | case 'o': /* True if option `arg' is set. */ |
622 | return (minus_o_option_value (arg) == 1); | |
495aee44 CR |
623 | |
624 | case 'v': | |
625 | v = find_variable (arg); | |
ac50fbac | 626 | #if defined (ARRAY_VARS) |
a0c0a00f | 627 | if (v == 0 && valid_array_reference (arg, 0)) |
ac50fbac CR |
628 | { |
629 | char *t; | |
630 | t = array_value (arg, 0, 0, (int *)0, (arrayind_t *)0); | |
631 | return (t ? TRUE : FALSE); | |
632 | } | |
633 | else if (v && invisible_p (v) == 0 && array_p (v)) | |
634 | { | |
635 | char *t; | |
636 | /* [[ -v foo ]] == [[ -v foo[0] ]] */ | |
637 | t = array_reference (array_cell (v), 0); | |
638 | return (t ? TRUE : FALSE); | |
639 | } | |
640 | else if (v && invisible_p (v) == 0 && assoc_p (v)) | |
641 | { | |
642 | char *t; | |
643 | t = assoc_reference (assoc_cell (v), "0"); | |
644 | return (t ? TRUE : FALSE); | |
645 | } | |
646 | #endif | |
647 | return (v && invisible_p (v) == 0 && var_isset (v) ? TRUE : FALSE); | |
648 | ||
649 | case 'R': | |
f5c8237d CR |
650 | v = find_variable_noref (arg); |
651 | return ((v && invisible_p (v) == 0 && var_isset (v) && nameref_p (v)) ? TRUE : FALSE); | |
726f6388 | 652 | } |
f73dda09 JA |
653 | |
654 | /* We can't actually get here, but this shuts up gcc. */ | |
655 | return (FALSE); | |
726f6388 JA |
656 | } |
657 | ||
cce855bc JA |
658 | /* Return TRUE if OP is one of the test command's binary operators. */ |
659 | int | |
660 | test_binop (op) | |
661 | char *op; | |
726f6388 | 662 | { |
cce855bc | 663 | if (op[0] == '=' && op[1] == '\0') |
ccc6cda3 | 664 | return (1); /* '=' */ |
cce855bc | 665 | else if ((op[0] == '<' || op[0] == '>') && op[1] == '\0') /* string <, > */ |
ccc6cda3 | 666 | return (1); |
cce855bc | 667 | else if ((op[0] == '=' || op[0] == '!') && op[1] == '=' && op[2] == '\0') |
ccc6cda3 JA |
668 | return (1); /* `==' and `!=' */ |
669 | #if defined (PATTERN_MATCHING) | |
cce855bc | 670 | else if (op[2] == '\0' && op[1] == '~' && (op[0] == '=' || op[0] == '!')) |
ccc6cda3 JA |
671 | return (1); |
672 | #endif | |
cce855bc | 673 | else if (op[0] != '-' || op[2] == '\0' || op[3] != '\0') |
ccc6cda3 JA |
674 | return (0); |
675 | else | |
676 | { | |
cce855bc JA |
677 | if (op[2] == 't') |
678 | switch (op[1]) | |
ccc6cda3 | 679 | { |
cce855bc JA |
680 | case 'n': /* -nt */ |
681 | case 'o': /* -ot */ | |
682 | case 'l': /* -lt */ | |
683 | case 'g': /* -gt */ | |
684 | return (1); | |
685 | default: | |
686 | return (0); | |
ccc6cda3 | 687 | } |
cce855bc JA |
688 | else if (op[1] == 'e') |
689 | switch (op[2]) | |
ccc6cda3 | 690 | { |
cce855bc JA |
691 | case 'q': /* -eq */ |
692 | case 'f': /* -ef */ | |
693 | return (1); | |
694 | default: | |
695 | return (0); | |
ccc6cda3 | 696 | } |
cce855bc JA |
697 | else if (op[2] == 'e') |
698 | switch (op[1]) | |
ccc6cda3 | 699 | { |
cce855bc JA |
700 | case 'n': /* -ne */ |
701 | case 'g': /* -ge */ | |
702 | case 'l': /* -le */ | |
703 | return (1); | |
704 | default: | |
705 | return (0); | |
ccc6cda3 JA |
706 | } |
707 | else | |
28ef6c31 | 708 | return (0); |
ccc6cda3 | 709 | } |
726f6388 JA |
710 | } |
711 | ||
712 | /* Return non-zero if OP is one of the test command's unary operators. */ | |
cce855bc JA |
713 | int |
714 | test_unop (op) | |
715 | char *op; | |
726f6388 | 716 | { |
3185942a | 717 | if (op[0] != '-' || op[2] != 0) |
cce855bc JA |
718 | return (0); |
719 | ||
720 | switch (op[1]) | |
ccc6cda3 JA |
721 | { |
722 | case 'a': case 'b': case 'c': case 'd': case 'e': | |
723 | case 'f': case 'g': case 'h': case 'k': case 'n': | |
cce855bc | 724 | case 'o': case 'p': case 'r': case 's': case 't': |
495aee44 | 725 | case 'u': case 'v': case 'w': case 'x': case 'z': |
cce855bc | 726 | case 'G': case 'L': case 'O': case 'S': case 'N': |
f5c8237d | 727 | case 'R': |
ccc6cda3 JA |
728 | return (1); |
729 | } | |
cce855bc | 730 | |
ccc6cda3 | 731 | return (0); |
726f6388 JA |
732 | } |
733 | ||
734 | static int | |
735 | two_arguments () | |
736 | { | |
ccc6cda3 JA |
737 | if (argv[pos][0] == '!' && argv[pos][1] == '\0') |
738 | return (argv[pos + 1][0] == '\0'); | |
739 | else if (argv[pos][0] == '-' && argv[pos][2] == '\0') | |
726f6388 | 740 | { |
cce855bc | 741 | if (test_unop (argv[pos])) |
ccc6cda3 | 742 | return (unary_operator ()); |
726f6388 | 743 | else |
b80f6443 | 744 | test_syntax_error (_("%s: unary operator expected"), argv[pos]); |
726f6388 JA |
745 | } |
746 | else | |
b80f6443 | 747 | test_syntax_error (_("%s: unary operator expected"), argv[pos]); |
726f6388 | 748 | |
ccc6cda3 | 749 | return (0); |
726f6388 JA |
750 | } |
751 | ||
ccc6cda3 JA |
752 | #define ANDOR(s) (s[0] == '-' && !s[2] && (s[1] == 'a' || s[1] == 'o')) |
753 | ||
f73dda09 JA |
754 | /* This could be augmented to handle `-t' as equivalent to `-t 1', but |
755 | POSIX requires that `-t' be given an argument. */ | |
ccc6cda3 JA |
756 | #define ONE_ARG_TEST(s) ((s)[0] != '\0') |
757 | ||
726f6388 JA |
758 | static int |
759 | three_arguments () | |
760 | { | |
761 | int value; | |
762 | ||
cce855bc | 763 | if (test_binop (argv[pos+1])) |
ccc6cda3 JA |
764 | { |
765 | value = binary_operator (); | |
766 | pos = argc; | |
767 | } | |
768 | else if (ANDOR (argv[pos+1])) | |
769 | { | |
770 | if (argv[pos+1][1] == 'a') | |
28ef6c31 | 771 | value = ONE_ARG_TEST(argv[pos]) && ONE_ARG_TEST(argv[pos+2]); |
ccc6cda3 | 772 | else |
28ef6c31 | 773 | value = ONE_ARG_TEST(argv[pos]) || ONE_ARG_TEST(argv[pos+2]); |
ccc6cda3 JA |
774 | pos = argc; |
775 | } | |
cce855bc | 776 | else if (argv[pos][0] == '!' && argv[pos][1] == '\0') |
726f6388 JA |
777 | { |
778 | advance (1); | |
779 | value = !two_arguments (); | |
780 | } | |
ccc6cda3 | 781 | else if (argv[pos][0] == '(' && argv[pos+2][0] == ')') |
726f6388 | 782 | { |
ccc6cda3 | 783 | value = ONE_ARG_TEST(argv[pos+1]); |
726f6388 JA |
784 | pos = argc; |
785 | } | |
726f6388 | 786 | else |
b80f6443 | 787 | test_syntax_error (_("%s: binary operator expected"), argv[pos+1]); |
ccc6cda3 | 788 | |
726f6388 JA |
789 | return (value); |
790 | } | |
791 | ||
792 | /* This is an implementation of a Posix.2 proposal by David Korn. */ | |
793 | static int | |
794 | posixtest () | |
795 | { | |
796 | int value; | |
797 | ||
798 | switch (argc - 1) /* one extra passed in */ | |
799 | { | |
800 | case 0: | |
801 | value = FALSE; | |
802 | pos = argc; | |
803 | break; | |
804 | ||
805 | case 1: | |
ccc6cda3 | 806 | value = ONE_ARG_TEST(argv[1]); |
726f6388 JA |
807 | pos = argc; |
808 | break; | |
809 | ||
810 | case 2: | |
811 | value = two_arguments (); | |
812 | pos = argc; | |
813 | break; | |
814 | ||
815 | case 3: | |
816 | value = three_arguments (); | |
817 | break; | |
818 | ||
819 | case 4: | |
ccc6cda3 | 820 | if (argv[pos][0] == '!' && argv[pos][1] == '\0') |
726f6388 JA |
821 | { |
822 | advance (1); | |
823 | value = !three_arguments (); | |
824 | break; | |
825 | } | |
a0c0a00f CR |
826 | else if (argv[pos][0] == '(' && argv[pos][1] == '\0' && argv[argc-1][0] == ')' && argv[argc-1][1] == '\0') |
827 | { | |
828 | advance (1); | |
829 | value = two_arguments (); | |
830 | pos = argc; | |
831 | break; | |
832 | } | |
726f6388 | 833 | /* FALLTHROUGH */ |
726f6388 JA |
834 | default: |
835 | value = expr (); | |
836 | } | |
837 | ||
838 | return (value); | |
839 | } | |
840 | ||
841 | /* | |
842 | * [: | |
843 | * '[' expr ']' | |
844 | * test: | |
845 | * test expr | |
846 | */ | |
847 | int | |
d166f048 | 848 | test_command (margc, margv) |
726f6388 JA |
849 | int margc; |
850 | char **margv; | |
851 | { | |
852 | int value; | |
726f6388 JA |
853 | int code; |
854 | ||
f73dda09 JA |
855 | USE_VAR(margc); |
856 | ||
ac50fbac | 857 | code = setjmp_nosigs (test_exit_buf); |
726f6388 JA |
858 | |
859 | if (code) | |
860 | return (test_error_return); | |
726f6388 JA |
861 | |
862 | argv = margv; | |
863 | ||
ccc6cda3 | 864 | if (margv[0] && margv[0][0] == '[' && margv[0][1] == '\0') |
726f6388 JA |
865 | { |
866 | --margc; | |
867 | ||
726f6388 | 868 | if (margv[margc] && (margv[margc][0] != ']' || margv[margc][1])) |
b80f6443 | 869 | test_syntax_error (_("missing `]'"), (char *)NULL); |
28ef6c31 JA |
870 | |
871 | if (margc < 2) | |
872 | test_exit (SHELL_BOOLEAN (FALSE)); | |
726f6388 JA |
873 | } |
874 | ||
875 | argc = margc; | |
876 | pos = 1; | |
877 | ||
878 | if (pos >= argc) | |
879 | test_exit (SHELL_BOOLEAN (FALSE)); | |
880 | ||
881 | noeval = 0; | |
882 | value = posixtest (); | |
883 | ||
884 | if (pos != argc) | |
b80f6443 | 885 | test_syntax_error (_("too many arguments"), (char *)NULL); |
726f6388 JA |
886 | |
887 | test_exit (SHELL_BOOLEAN (value)); | |
888 | } |