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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) \ |
726f6388 | 104 | do { test_error_return = val; 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 |
cce855bc | 228 | * '-o' option |
726f6388 | 229 | * string |
ccc6cda3 | 230 | * string ('!='|'='|'==') string |
726f6388 JA |
231 | * <int> '-'(eq|ne|le|lt|ge|gt) <int> |
232 | * file '-'(nt|ot|ef) file | |
233 | * '(' <expr> ')' | |
234 | * int ::= | |
726f6388 JA |
235 | * positive and negative integers |
236 | */ | |
237 | static int | |
238 | term () | |
239 | { | |
240 | int value; | |
241 | ||
242 | if (pos >= argc) | |
243 | beyond (); | |
244 | ||
ccc6cda3 JA |
245 | /* Deal with leading `not's. */ |
246 | if (argv[pos][0] == '!' && argv[pos][1] == '\0') | |
726f6388 | 247 | { |
ccc6cda3 JA |
248 | value = 0; |
249 | while (pos < argc && argv[pos][0] == '!' && argv[pos][1] == '\0') | |
726f6388 JA |
250 | { |
251 | advance (1); | |
ccc6cda3 | 252 | value = 1 - value; |
726f6388 JA |
253 | } |
254 | ||
ccc6cda3 | 255 | return (value ? !term() : term()); |
726f6388 JA |
256 | } |
257 | ||
ccc6cda3 | 258 | /* A paren-bracketed argument. */ |
b80f6443 | 259 | if (argv[pos][0] == '(' && argv[pos][1] == '\0') /* ) */ |
726f6388 JA |
260 | { |
261 | advance (1); | |
262 | value = expr (); | |
b80f6443 JA |
263 | if (argv[pos] == 0) /* ( */ |
264 | test_syntax_error (_("`)' expected"), (char *)NULL); | |
265 | else if (argv[pos][0] != ')' || argv[pos][1]) /* ( */ | |
266 | test_syntax_error (_("`)' expected, found %s"), argv[pos]); | |
726f6388 | 267 | advance (0); |
ccc6cda3 | 268 | return (value); |
726f6388 JA |
269 | } |
270 | ||
271 | /* are there enough arguments left that this could be dyadic? */ | |
cce855bc | 272 | if ((pos + 3 <= argc) && test_binop (argv[pos + 1])) |
726f6388 JA |
273 | value = binary_operator (); |
274 | ||
275 | /* Might be a switch type argument */ | |
ccc6cda3 | 276 | else if (argv[pos][0] == '-' && argv[pos][2] == '\0') |
726f6388 | 277 | { |
cce855bc | 278 | if (test_unop (argv[pos])) |
726f6388 JA |
279 | value = unary_operator (); |
280 | else | |
b80f6443 | 281 | test_syntax_error (_("%s: unary operator expected"), argv[pos]); |
726f6388 JA |
282 | } |
283 | else | |
284 | { | |
ccc6cda3 | 285 | value = argv[pos][0] != '\0'; |
726f6388 JA |
286 | advance (0); |
287 | } | |
288 | ||
289 | return (value); | |
290 | } | |
291 | ||
ac50fbac CR |
292 | static int |
293 | stat_mtime (fn, st, ts) | |
294 | char *fn; | |
295 | struct stat *st; | |
296 | struct timespec *ts; | |
297 | { | |
298 | int r; | |
299 | ||
300 | r = sh_stat (fn, st); | |
301 | if (r < 0) | |
302 | return r; | |
303 | *ts = get_stat_mtime (st); | |
304 | return 0; | |
305 | } | |
306 | ||
726f6388 | 307 | static int |
ccc6cda3 JA |
308 | filecomp (s, t, op) |
309 | char *s, *t; | |
310 | int op; | |
726f6388 | 311 | { |
ccc6cda3 | 312 | struct stat st1, st2; |
ac50fbac | 313 | struct timespec ts1, ts2; |
7117c2d2 | 314 | int r1, r2; |
726f6388 | 315 | |
ac50fbac | 316 | if ((r1 = stat_mtime (s, &st1, &ts1)) < 0) |
28ef6c31 | 317 | { |
28ef6c31 JA |
318 | if (op == EF) |
319 | return (FALSE); | |
320 | } | |
ac50fbac | 321 | if ((r2 = stat_mtime (t, &st2, &ts2)) < 0) |
28ef6c31 | 322 | { |
28ef6c31 JA |
323 | if (op == EF) |
324 | return (FALSE); | |
325 | } | |
326 | ||
ccc6cda3 | 327 | switch (op) |
726f6388 | 328 | { |
ac50fbac CR |
329 | case OT: return (r1 < r2 || (r2 == 0 && timespec_cmp (ts1, ts2) < 0)); |
330 | case NT: return (r1 > r2 || (r1 == 0 && timespec_cmp (ts1, ts2) > 0)); | |
3185942a | 331 | case EF: return (same_file (s, t, &st1, &st2)); |
ccc6cda3 JA |
332 | } |
333 | return (FALSE); | |
334 | } | |
726f6388 | 335 | |
ccc6cda3 | 336 | static int |
cce855bc | 337 | arithcomp (s, t, op, flags) |
ccc6cda3 | 338 | char *s, *t; |
cce855bc | 339 | int op, flags; |
ccc6cda3 | 340 | { |
7117c2d2 | 341 | intmax_t l, r; |
cce855bc JA |
342 | int expok; |
343 | ||
344 | if (flags & TEST_ARITHEXP) | |
345 | { | |
346 | l = evalexp (s, &expok); | |
347 | if (expok == 0) | |
348 | return (FALSE); /* should probably longjmp here */ | |
349 | r = evalexp (t, &expok); | |
350 | if (expok == 0) | |
351 | return (FALSE); /* ditto */ | |
352 | } | |
353 | else | |
354 | { | |
355 | if (legal_number (s, &l) == 0) | |
356 | integer_expected_error (s); | |
357 | if (legal_number (t, &r) == 0) | |
358 | integer_expected_error (t); | |
359 | } | |
726f6388 | 360 | |
ccc6cda3 JA |
361 | switch (op) |
362 | { | |
363 | case EQ: return (l == r); | |
364 | case NE: return (l != r); | |
365 | case LT: return (l < r); | |
366 | case GT: return (l > r); | |
367 | case LE: return (l <= r); | |
368 | case GE: return (l >= r); | |
726f6388 | 369 | } |
cce855bc | 370 | |
ccc6cda3 JA |
371 | return (FALSE); |
372 | } | |
373 | ||
ccc6cda3 JA |
374 | static int |
375 | patcomp (string, pat, op) | |
376 | char *string, *pat; | |
377 | int op; | |
378 | { | |
379 | int m; | |
380 | ||
95732b49 | 381 | m = strmatch (pat, string, FNMATCH_EXTFLAG|FNMATCH_IGNCASE); |
cce855bc JA |
382 | return ((op == EQ) ? (m == 0) : (m != 0)); |
383 | } | |
384 | ||
385 | int | |
386 | binary_test (op, arg1, arg2, flags) | |
387 | char *op, *arg1, *arg2; | |
388 | int flags; | |
389 | { | |
390 | int patmatch; | |
391 | ||
392 | patmatch = (flags & TEST_PATMATCH); | |
393 | ||
394 | if (op[0] == '=' && (op[1] == '\0' || (op[1] == '=' && op[2] == '\0'))) | |
395 | return (patmatch ? patcomp (arg1, arg2, EQ) : STREQ (arg1, arg2)); | |
cce855bc | 396 | else if ((op[0] == '>' || op[0] == '<') && op[1] == '\0') |
0001803f | 397 | { |
ac50fbac | 398 | #if defined (HAVE_STRCOLL) |
0001803f CR |
399 | if (shell_compatibility_level > 40 && flags & TEST_LOCALE) |
400 | return ((op[0] == '>') ? (strcoll (arg1, arg2) > 0) : (strcoll (arg1, arg2) < 0)); | |
401 | else | |
ac50fbac | 402 | #endif |
0001803f CR |
403 | return ((op[0] == '>') ? (strcmp (arg1, arg2) > 0) : (strcmp (arg1, arg2) < 0)); |
404 | } | |
cce855bc JA |
405 | else if (op[0] == '!' && op[1] == '=' && op[2] == '\0') |
406 | return (patmatch ? patcomp (arg1, arg2, NE) : (STREQ (arg1, arg2) == 0)); | |
0001803f | 407 | |
cce855bc JA |
408 | |
409 | else if (op[2] == 't') | |
410 | { | |
411 | switch (op[1]) | |
412 | { | |
28ef6c31 JA |
413 | case 'n': return (filecomp (arg1, arg2, NT)); /* -nt */ |
414 | case 'o': return (filecomp (arg1, arg2, OT)); /* -ot */ | |
cce855bc JA |
415 | case 'l': return (arithcomp (arg1, arg2, LT, flags)); /* -lt */ |
416 | case 'g': return (arithcomp (arg1, arg2, GT, flags)); /* -gt */ | |
417 | } | |
418 | } | |
419 | else if (op[1] == 'e') | |
726f6388 | 420 | { |
cce855bc JA |
421 | switch (op[2]) |
422 | { | |
423 | case 'f': return (filecomp (arg1, arg2, EF)); /* -ef */ | |
424 | case 'q': return (arithcomp (arg1, arg2, EQ, flags)); /* -eq */ | |
425 | } | |
426 | } | |
427 | else if (op[2] == 'e') | |
428 | { | |
429 | switch (op[1]) | |
430 | { | |
431 | case 'n': return (arithcomp (arg1, arg2, NE, flags)); /* -ne */ | |
432 | case 'g': return (arithcomp (arg1, arg2, GE, flags)); /* -ge */ | |
433 | case 'l': return (arithcomp (arg1, arg2, LE, flags)); /* -le */ | |
434 | } | |
726f6388 | 435 | } |
cce855bc JA |
436 | |
437 | return (FALSE); /* should never get here */ | |
ccc6cda3 | 438 | } |
cce855bc | 439 | |
726f6388 | 440 | |
ccc6cda3 JA |
441 | static int |
442 | binary_operator () | |
443 | { | |
444 | int value; | |
445 | char *w; | |
446 | ||
447 | w = argv[pos + 1]; | |
cce855bc JA |
448 | if ((w[0] == '=' && (w[1] == '\0' || (w[1] == '=' && w[2] == '\0'))) || /* =, == */ |
449 | ((w[0] == '>' || w[0] == '<') && w[1] == '\0') || /* <, > */ | |
450 | (w[0] == '!' && w[1] == '=' && w[2] == '\0')) /* != */ | |
726f6388 | 451 | { |
cce855bc | 452 | value = binary_test (w, argv[pos], argv[pos + 2], 0); |
ccc6cda3 JA |
453 | pos += 3; |
454 | return (value); | |
455 | } | |
cce855bc | 456 | |
ccc6cda3 JA |
457 | #if defined (PATTERN_MATCHING) |
458 | if ((w[0] == '=' || w[0] == '!') && w[1] == '~' && w[2] == '\0') | |
459 | { | |
460 | value = patcomp (argv[pos], argv[pos + 2], w[0] == '=' ? EQ : NE); | |
461 | pos += 3; | |
462 | return (value); | |
463 | } | |
464 | #endif | |
ccc6cda3 | 465 | |
cce855bc | 466 | if ((w[0] != '-' || w[3] != '\0') || test_binop (w) == 0) |
ccc6cda3 | 467 | { |
b80f6443 | 468 | test_syntax_error (_("%s: binary operator expected"), w); |
ccc6cda3 JA |
469 | /* NOTREACHED */ |
470 | return (FALSE); | |
726f6388 | 471 | } |
726f6388 | 472 | |
cce855bc | 473 | value = binary_test (w, argv[pos], argv[pos + 2], 0); |
ccc6cda3 JA |
474 | pos += 3; |
475 | return value; | |
726f6388 JA |
476 | } |
477 | ||
478 | static int | |
479 | unary_operator () | |
480 | { | |
f73dda09 | 481 | char *op; |
7117c2d2 | 482 | intmax_t r; |
726f6388 | 483 | |
cce855bc JA |
484 | op = argv[pos]; |
485 | if (test_unop (op) == 0) | |
486 | return (FALSE); | |
487 | ||
488 | /* the only tricky case is `-t', which may or may not take an argument. */ | |
489 | if (op[1] == 't') | |
726f6388 | 490 | { |
cce855bc | 491 | advance (0); |
28ef6c31 | 492 | if (pos < argc) |
cce855bc | 493 | { |
28ef6c31 JA |
494 | if (legal_number (argv[pos], &r)) |
495 | { | |
496 | advance (0); | |
497 | return (unary_test (op, argv[pos - 1])); | |
498 | } | |
499 | else | |
500 | return (FALSE); | |
cce855bc JA |
501 | } |
502 | else | |
503 | return (unary_test (op, "1")); | |
504 | } | |
726f6388 | 505 | |
cce855bc JA |
506 | /* All of the unary operators take an argument, so we first call |
507 | unary_advance (), which checks to make sure that there is an | |
508 | argument, and then advances pos right past it. This means that | |
509 | pos - 1 is the location of the argument. */ | |
510 | unary_advance (); | |
511 | return (unary_test (op, argv[pos - 1])); | |
512 | } | |
726f6388 | 513 | |
cce855bc JA |
514 | int |
515 | unary_test (op, arg) | |
516 | char *op, *arg; | |
517 | { | |
7117c2d2 | 518 | intmax_t r; |
cce855bc | 519 | struct stat stat_buf; |
495aee44 | 520 | SHELL_VAR *v; |
cce855bc JA |
521 | |
522 | switch (op[1]) | |
523 | { | |
726f6388 JA |
524 | case 'a': /* file exists in the file system? */ |
525 | case 'e': | |
0628567a | 526 | return (sh_stat (arg, &stat_buf) == 0); |
726f6388 JA |
527 | |
528 | case 'r': /* file is readable? */ | |
0628567a | 529 | return (sh_eaccess (arg, R_OK) == 0); |
726f6388 JA |
530 | |
531 | case 'w': /* File is writeable? */ | |
0628567a | 532 | return (sh_eaccess (arg, W_OK) == 0); |
726f6388 JA |
533 | |
534 | case 'x': /* File is executable? */ | |
0628567a | 535 | return (sh_eaccess (arg, X_OK) == 0); |
726f6388 JA |
536 | |
537 | case 'O': /* File is owned by you? */ | |
0628567a | 538 | return (sh_stat (arg, &stat_buf) == 0 && |
d166f048 | 539 | (uid_t) current_user.euid == (uid_t) stat_buf.st_uid); |
726f6388 JA |
540 | |
541 | case 'G': /* File is owned by your group? */ | |
0628567a | 542 | return (sh_stat (arg, &stat_buf) == 0 && |
d166f048 | 543 | (gid_t) current_user.egid == (gid_t) stat_buf.st_gid); |
726f6388 | 544 | |
cce855bc | 545 | case 'N': |
0628567a | 546 | return (sh_stat (arg, &stat_buf) == 0 && |
cce855bc JA |
547 | stat_buf.st_atime <= stat_buf.st_mtime); |
548 | ||
726f6388 | 549 | case 'f': /* File is a file? */ |
0628567a | 550 | if (sh_stat (arg, &stat_buf) < 0) |
726f6388 JA |
551 | return (FALSE); |
552 | ||
ccc6cda3 | 553 | /* -f is true if the given file exists and is a regular file. */ |
726f6388 | 554 | #if defined (S_IFMT) |
ccc6cda3 | 555 | return (S_ISREG (stat_buf.st_mode) || (stat_buf.st_mode & S_IFMT) == 0); |
726f6388 | 556 | #else |
ccc6cda3 | 557 | return (S_ISREG (stat_buf.st_mode)); |
726f6388 JA |
558 | #endif /* !S_IFMT */ |
559 | ||
560 | case 'd': /* File is a directory? */ | |
0628567a | 561 | return (sh_stat (arg, &stat_buf) == 0 && (S_ISDIR (stat_buf.st_mode))); |
726f6388 JA |
562 | |
563 | case 's': /* File has something in it? */ | |
0628567a | 564 | return (sh_stat (arg, &stat_buf) == 0 && stat_buf.st_size > (off_t) 0); |
726f6388 JA |
565 | |
566 | case 'S': /* File is a socket? */ | |
567 | #if !defined (S_ISSOCK) | |
568 | return (FALSE); | |
569 | #else | |
0628567a | 570 | return (sh_stat (arg, &stat_buf) == 0 && S_ISSOCK (stat_buf.st_mode)); |
ccc6cda3 | 571 | #endif /* S_ISSOCK */ |
726f6388 JA |
572 | |
573 | case 'c': /* File is character special? */ | |
0628567a | 574 | return (sh_stat (arg, &stat_buf) == 0 && S_ISCHR (stat_buf.st_mode)); |
726f6388 JA |
575 | |
576 | case 'b': /* File is block special? */ | |
0628567a | 577 | return (sh_stat (arg, &stat_buf) == 0 && S_ISBLK (stat_buf.st_mode)); |
726f6388 JA |
578 | |
579 | case 'p': /* File is a named pipe? */ | |
726f6388 JA |
580 | #ifndef S_ISFIFO |
581 | return (FALSE); | |
582 | #else | |
0628567a | 583 | return (sh_stat (arg, &stat_buf) == 0 && S_ISFIFO (stat_buf.st_mode)); |
ccc6cda3 | 584 | #endif /* S_ISFIFO */ |
726f6388 JA |
585 | |
586 | case 'L': /* Same as -h */ | |
726f6388 | 587 | case 'h': /* File is a symbolic link? */ |
ccc6cda3 | 588 | #if !defined (S_ISLNK) || !defined (HAVE_LSTAT) |
726f6388 JA |
589 | return (FALSE); |
590 | #else | |
cce855bc JA |
591 | return ((arg[0] != '\0') && |
592 | (lstat (arg, &stat_buf) == 0) && S_ISLNK (stat_buf.st_mode)); | |
ccc6cda3 | 593 | #endif /* S_IFLNK && HAVE_LSTAT */ |
726f6388 JA |
594 | |
595 | case 'u': /* File is setuid? */ | |
0628567a | 596 | return (sh_stat (arg, &stat_buf) == 0 && (stat_buf.st_mode & S_ISUID) != 0); |
726f6388 JA |
597 | |
598 | case 'g': /* File is setgid? */ | |
0628567a | 599 | return (sh_stat (arg, &stat_buf) == 0 && (stat_buf.st_mode & S_ISGID) != 0); |
726f6388 JA |
600 | |
601 | case 'k': /* File has sticky bit set? */ | |
726f6388 JA |
602 | #if !defined (S_ISVTX) |
603 | /* This is not Posix, and is not defined on some Posix systems. */ | |
604 | return (FALSE); | |
605 | #else | |
0628567a | 606 | return (sh_stat (arg, &stat_buf) == 0 && (stat_buf.st_mode & S_ISVTX) != 0); |
726f6388 JA |
607 | #endif |
608 | ||
cce855bc JA |
609 | case 't': /* File fd is a terminal? */ |
610 | if (legal_number (arg, &r) == 0) | |
611 | return (FALSE); | |
f73dda09 | 612 | return ((r == (int)r) && isatty ((int)r)); |
726f6388 JA |
613 | |
614 | case 'n': /* True if arg has some length. */ | |
cce855bc | 615 | return (arg[0] != '\0'); |
726f6388 JA |
616 | |
617 | case 'z': /* True if arg has no length. */ | |
cce855bc | 618 | return (arg[0] == '\0'); |
726f6388 | 619 | |
cce855bc JA |
620 | case 'o': /* True if option `arg' is set. */ |
621 | return (minus_o_option_value (arg) == 1); | |
495aee44 CR |
622 | |
623 | case 'v': | |
624 | v = find_variable (arg); | |
ac50fbac CR |
625 | #if defined (ARRAY_VARS) |
626 | if (v == 0 && valid_array_reference (arg)) | |
627 | { | |
628 | char *t; | |
629 | t = array_value (arg, 0, 0, (int *)0, (arrayind_t *)0); | |
630 | return (t ? TRUE : FALSE); | |
631 | } | |
632 | else if (v && invisible_p (v) == 0 && array_p (v)) | |
633 | { | |
634 | char *t; | |
635 | /* [[ -v foo ]] == [[ -v foo[0] ]] */ | |
636 | t = array_reference (array_cell (v), 0); | |
637 | return (t ? TRUE : FALSE); | |
638 | } | |
639 | else if (v && invisible_p (v) == 0 && assoc_p (v)) | |
640 | { | |
641 | char *t; | |
642 | t = assoc_reference (assoc_cell (v), "0"); | |
643 | return (t ? TRUE : FALSE); | |
644 | } | |
645 | #endif | |
646 | return (v && invisible_p (v) == 0 && var_isset (v) ? TRUE : FALSE); | |
647 | ||
648 | case 'R': | |
f5c8237d CR |
649 | v = find_variable_noref (arg); |
650 | return ((v && invisible_p (v) == 0 && var_isset (v) && nameref_p (v)) ? TRUE : FALSE); | |
726f6388 | 651 | } |
f73dda09 JA |
652 | |
653 | /* We can't actually get here, but this shuts up gcc. */ | |
654 | return (FALSE); | |
726f6388 JA |
655 | } |
656 | ||
cce855bc JA |
657 | /* Return TRUE if OP is one of the test command's binary operators. */ |
658 | int | |
659 | test_binop (op) | |
660 | char *op; | |
726f6388 | 661 | { |
cce855bc | 662 | if (op[0] == '=' && op[1] == '\0') |
ccc6cda3 | 663 | return (1); /* '=' */ |
cce855bc | 664 | else if ((op[0] == '<' || op[0] == '>') && op[1] == '\0') /* string <, > */ |
ccc6cda3 | 665 | return (1); |
cce855bc | 666 | else if ((op[0] == '=' || op[0] == '!') && op[1] == '=' && op[2] == '\0') |
ccc6cda3 JA |
667 | return (1); /* `==' and `!=' */ |
668 | #if defined (PATTERN_MATCHING) | |
cce855bc | 669 | else if (op[2] == '\0' && op[1] == '~' && (op[0] == '=' || op[0] == '!')) |
ccc6cda3 JA |
670 | return (1); |
671 | #endif | |
cce855bc | 672 | else if (op[0] != '-' || op[2] == '\0' || op[3] != '\0') |
ccc6cda3 JA |
673 | return (0); |
674 | else | |
675 | { | |
cce855bc JA |
676 | if (op[2] == 't') |
677 | switch (op[1]) | |
ccc6cda3 | 678 | { |
cce855bc JA |
679 | case 'n': /* -nt */ |
680 | case 'o': /* -ot */ | |
681 | case 'l': /* -lt */ | |
682 | case 'g': /* -gt */ | |
683 | return (1); | |
684 | default: | |
685 | return (0); | |
ccc6cda3 | 686 | } |
cce855bc JA |
687 | else if (op[1] == 'e') |
688 | switch (op[2]) | |
ccc6cda3 | 689 | { |
cce855bc JA |
690 | case 'q': /* -eq */ |
691 | case 'f': /* -ef */ | |
692 | return (1); | |
693 | default: | |
694 | return (0); | |
ccc6cda3 | 695 | } |
cce855bc JA |
696 | else if (op[2] == 'e') |
697 | switch (op[1]) | |
ccc6cda3 | 698 | { |
cce855bc JA |
699 | case 'n': /* -ne */ |
700 | case 'g': /* -ge */ | |
701 | case 'l': /* -le */ | |
702 | return (1); | |
703 | default: | |
704 | return (0); | |
ccc6cda3 JA |
705 | } |
706 | else | |
28ef6c31 | 707 | return (0); |
ccc6cda3 | 708 | } |
726f6388 JA |
709 | } |
710 | ||
711 | /* Return non-zero if OP is one of the test command's unary operators. */ | |
cce855bc JA |
712 | int |
713 | test_unop (op) | |
714 | char *op; | |
726f6388 | 715 | { |
3185942a | 716 | if (op[0] != '-' || op[2] != 0) |
cce855bc JA |
717 | return (0); |
718 | ||
719 | switch (op[1]) | |
ccc6cda3 JA |
720 | { |
721 | case 'a': case 'b': case 'c': case 'd': case 'e': | |
722 | case 'f': case 'g': case 'h': case 'k': case 'n': | |
cce855bc | 723 | case 'o': case 'p': case 'r': case 's': case 't': |
495aee44 | 724 | case 'u': case 'v': case 'w': case 'x': case 'z': |
cce855bc | 725 | case 'G': case 'L': case 'O': case 'S': case 'N': |
f5c8237d | 726 | case 'R': |
ccc6cda3 JA |
727 | return (1); |
728 | } | |
cce855bc | 729 | |
ccc6cda3 | 730 | return (0); |
726f6388 JA |
731 | } |
732 | ||
733 | static int | |
734 | two_arguments () | |
735 | { | |
ccc6cda3 JA |
736 | if (argv[pos][0] == '!' && argv[pos][1] == '\0') |
737 | return (argv[pos + 1][0] == '\0'); | |
738 | else if (argv[pos][0] == '-' && argv[pos][2] == '\0') | |
726f6388 | 739 | { |
cce855bc | 740 | if (test_unop (argv[pos])) |
ccc6cda3 | 741 | return (unary_operator ()); |
726f6388 | 742 | else |
b80f6443 | 743 | test_syntax_error (_("%s: unary operator expected"), argv[pos]); |
726f6388 JA |
744 | } |
745 | else | |
b80f6443 | 746 | test_syntax_error (_("%s: unary operator expected"), argv[pos]); |
726f6388 | 747 | |
ccc6cda3 | 748 | return (0); |
726f6388 JA |
749 | } |
750 | ||
ccc6cda3 JA |
751 | #define ANDOR(s) (s[0] == '-' && !s[2] && (s[1] == 'a' || s[1] == 'o')) |
752 | ||
f73dda09 JA |
753 | /* This could be augmented to handle `-t' as equivalent to `-t 1', but |
754 | POSIX requires that `-t' be given an argument. */ | |
ccc6cda3 JA |
755 | #define ONE_ARG_TEST(s) ((s)[0] != '\0') |
756 | ||
726f6388 JA |
757 | static int |
758 | three_arguments () | |
759 | { | |
760 | int value; | |
761 | ||
cce855bc | 762 | if (test_binop (argv[pos+1])) |
ccc6cda3 JA |
763 | { |
764 | value = binary_operator (); | |
765 | pos = argc; | |
766 | } | |
767 | else if (ANDOR (argv[pos+1])) | |
768 | { | |
769 | if (argv[pos+1][1] == 'a') | |
28ef6c31 | 770 | value = ONE_ARG_TEST(argv[pos]) && ONE_ARG_TEST(argv[pos+2]); |
ccc6cda3 | 771 | else |
28ef6c31 | 772 | value = ONE_ARG_TEST(argv[pos]) || ONE_ARG_TEST(argv[pos+2]); |
ccc6cda3 JA |
773 | pos = argc; |
774 | } | |
cce855bc | 775 | else if (argv[pos][0] == '!' && argv[pos][1] == '\0') |
726f6388 JA |
776 | { |
777 | advance (1); | |
778 | value = !two_arguments (); | |
779 | } | |
ccc6cda3 | 780 | else if (argv[pos][0] == '(' && argv[pos+2][0] == ')') |
726f6388 | 781 | { |
ccc6cda3 | 782 | value = ONE_ARG_TEST(argv[pos+1]); |
726f6388 JA |
783 | pos = argc; |
784 | } | |
726f6388 | 785 | else |
b80f6443 | 786 | test_syntax_error (_("%s: binary operator expected"), argv[pos+1]); |
ccc6cda3 | 787 | |
726f6388 JA |
788 | return (value); |
789 | } | |
790 | ||
791 | /* This is an implementation of a Posix.2 proposal by David Korn. */ | |
792 | static int | |
793 | posixtest () | |
794 | { | |
795 | int value; | |
796 | ||
797 | switch (argc - 1) /* one extra passed in */ | |
798 | { | |
799 | case 0: | |
800 | value = FALSE; | |
801 | pos = argc; | |
802 | break; | |
803 | ||
804 | case 1: | |
ccc6cda3 | 805 | value = ONE_ARG_TEST(argv[1]); |
726f6388 JA |
806 | pos = argc; |
807 | break; | |
808 | ||
809 | case 2: | |
810 | value = two_arguments (); | |
811 | pos = argc; | |
812 | break; | |
813 | ||
814 | case 3: | |
815 | value = three_arguments (); | |
816 | break; | |
817 | ||
818 | case 4: | |
ccc6cda3 | 819 | if (argv[pos][0] == '!' && argv[pos][1] == '\0') |
726f6388 JA |
820 | { |
821 | advance (1); | |
822 | value = !three_arguments (); | |
823 | break; | |
824 | } | |
825 | /* FALLTHROUGH */ | |
726f6388 JA |
826 | default: |
827 | value = expr (); | |
828 | } | |
829 | ||
830 | return (value); | |
831 | } | |
832 | ||
833 | /* | |
834 | * [: | |
835 | * '[' expr ']' | |
836 | * test: | |
837 | * test expr | |
838 | */ | |
839 | int | |
d166f048 | 840 | test_command (margc, margv) |
726f6388 JA |
841 | int margc; |
842 | char **margv; | |
843 | { | |
844 | int value; | |
726f6388 JA |
845 | int code; |
846 | ||
f73dda09 JA |
847 | USE_VAR(margc); |
848 | ||
ac50fbac | 849 | code = setjmp_nosigs (test_exit_buf); |
726f6388 JA |
850 | |
851 | if (code) | |
852 | return (test_error_return); | |
726f6388 JA |
853 | |
854 | argv = margv; | |
855 | ||
ccc6cda3 | 856 | if (margv[0] && margv[0][0] == '[' && margv[0][1] == '\0') |
726f6388 JA |
857 | { |
858 | --margc; | |
859 | ||
726f6388 | 860 | if (margv[margc] && (margv[margc][0] != ']' || margv[margc][1])) |
b80f6443 | 861 | test_syntax_error (_("missing `]'"), (char *)NULL); |
28ef6c31 JA |
862 | |
863 | if (margc < 2) | |
864 | test_exit (SHELL_BOOLEAN (FALSE)); | |
726f6388 JA |
865 | } |
866 | ||
867 | argc = margc; | |
868 | pos = 1; | |
869 | ||
870 | if (pos >= argc) | |
871 | test_exit (SHELL_BOOLEAN (FALSE)); | |
872 | ||
873 | noeval = 0; | |
874 | value = posixtest (); | |
875 | ||
876 | if (pos != argc) | |
b80f6443 | 877 | test_syntax_error (_("too many arguments"), (char *)NULL); |
726f6388 JA |
878 | |
879 | test_exit (SHELL_BOOLEAN (value)); | |
880 | } |