/src/php-src/ext/standard/exec.c
Line | Count | Source (jump to first uncovered line) |
1 | | /* |
2 | | +----------------------------------------------------------------------+ |
3 | | | Copyright (c) The PHP Group | |
4 | | +----------------------------------------------------------------------+ |
5 | | | This source file is subject to version 3.01 of the PHP license, | |
6 | | | that is bundled with this package in the file LICENSE, and is | |
7 | | | available through the world-wide-web at the following url: | |
8 | | | https://www.php.net/license/3_01.txt | |
9 | | | If you did not receive a copy of the PHP license and are unable to | |
10 | | | obtain it through the world-wide-web, please send a note to | |
11 | | | license@php.net so we can mail you a copy immediately. | |
12 | | +----------------------------------------------------------------------+ |
13 | | | Author: Rasmus Lerdorf <rasmus@php.net> | |
14 | | | Ilia Alshanetsky <iliaa@php.net> | |
15 | | +----------------------------------------------------------------------+ |
16 | | */ |
17 | | |
18 | | #include <stdio.h> |
19 | | #include "php.h" |
20 | | #include <ctype.h> |
21 | | #include "php_string.h" |
22 | | #include "ext/standard/file.h" |
23 | | #include "basic_functions.h" |
24 | | #include "exec.h" |
25 | | #include "SAPI.h" |
26 | | |
27 | | #ifdef HAVE_SYS_WAIT_H |
28 | | #include <sys/wait.h> |
29 | | #endif |
30 | | |
31 | | #include <signal.h> |
32 | | |
33 | | #ifdef HAVE_SYS_TYPES_H |
34 | | #include <sys/types.h> |
35 | | #endif |
36 | | #ifdef HAVE_SYS_STAT_H |
37 | | #include <sys/stat.h> |
38 | | #endif |
39 | | #ifdef HAVE_FCNTL_H |
40 | | #include <fcntl.h> |
41 | | #endif |
42 | | |
43 | | #ifdef HAVE_UNISTD_H |
44 | | #include <unistd.h> |
45 | | #endif |
46 | | |
47 | | #include <limits.h> |
48 | | |
49 | | #ifdef PHP_WIN32 |
50 | | # include "win32/nice.h" |
51 | | #endif |
52 | | |
53 | | static size_t cmd_max_len; |
54 | | |
55 | | /* {{{ PHP_MINIT_FUNCTION(exec) */ |
56 | | PHP_MINIT_FUNCTION(exec) |
57 | 16 | { |
58 | 16 | #ifdef _SC_ARG_MAX |
59 | 16 | cmd_max_len = sysconf(_SC_ARG_MAX); |
60 | 16 | if ((size_t)-1 == cmd_max_len) { |
61 | 0 | #ifdef _POSIX_ARG_MAX |
62 | 0 | cmd_max_len = _POSIX_ARG_MAX; |
63 | | #else |
64 | | cmd_max_len = 4096; |
65 | | #endif |
66 | 0 | } |
67 | | #elif defined(ARG_MAX) |
68 | | cmd_max_len = ARG_MAX; |
69 | | #elif defined(PHP_WIN32) |
70 | | /* Executed commands will run through cmd.exe. As long as it's the case, |
71 | | it's just the constant limit.*/ |
72 | | cmd_max_len = 8192; |
73 | | #else |
74 | | /* This is just an arbitrary value for the fallback case. */ |
75 | | cmd_max_len = 4096; |
76 | | #endif |
77 | | |
78 | 16 | return SUCCESS; |
79 | 16 | } |
80 | | /* }}} */ |
81 | | |
82 | 0 | static size_t strip_trailing_whitespace(char *buf, size_t bufl) { |
83 | 0 | size_t l = bufl; |
84 | 0 | while (l-- > 0 && isspace(((unsigned char *)buf)[l])); |
85 | 0 | if (l != (bufl - 1)) { |
86 | 0 | bufl = l + 1; |
87 | 0 | buf[bufl] = '\0'; |
88 | 0 | } |
89 | 0 | return bufl; |
90 | 0 | } |
91 | | |
92 | 0 | static size_t handle_line(int type, zval *array, char *buf, size_t bufl) { |
93 | 0 | if (type == 1) { |
94 | 0 | PHPWRITE(buf, bufl); |
95 | 0 | if (php_output_get_level() < 1) { |
96 | 0 | sapi_flush(); |
97 | 0 | } |
98 | 0 | } else if (type == 2) { |
99 | 0 | bufl = strip_trailing_whitespace(buf, bufl); |
100 | 0 | add_next_index_stringl(array, buf, bufl); |
101 | 0 | } |
102 | 0 | return bufl; |
103 | 0 | } |
104 | | |
105 | | /* {{{ php_exec |
106 | | * If type==0, only last line of output is returned (exec) |
107 | | * If type==1, all lines will be printed and last lined returned (system) |
108 | | * If type==2, all lines will be saved to given array (exec with &$array) |
109 | | * If type==3, output will be printed binary, no lines will be saved or returned (passthru) |
110 | | * |
111 | | */ |
112 | | PHPAPI int php_exec(int type, const char *cmd, zval *array, zval *return_value) |
113 | 0 | { |
114 | 0 | FILE *fp; |
115 | 0 | char *buf; |
116 | 0 | int pclose_return; |
117 | 0 | char *b, *d=NULL; |
118 | 0 | php_stream *stream; |
119 | 0 | size_t buflen, bufl = 0; |
120 | | #if PHP_SIGCHILD |
121 | | void (*sig_handler)(int) = signal(SIGCHLD, SIG_DFL); |
122 | | #endif |
123 | |
|
124 | | #ifdef PHP_WIN32 |
125 | | fp = VCWD_POPEN(cmd, "rb"); |
126 | | #else |
127 | 0 | fp = VCWD_POPEN(cmd, "r"); |
128 | 0 | #endif |
129 | 0 | if (!fp) { |
130 | 0 | php_error_docref(NULL, E_WARNING, "Unable to fork [%s]", cmd); |
131 | 0 | goto err; |
132 | 0 | } |
133 | | |
134 | 0 | stream = php_stream_fopen_from_pipe(fp, "rb"); |
135 | |
|
136 | 0 | buf = (char *) emalloc(EXEC_INPUT_BUF); |
137 | 0 | buflen = EXEC_INPUT_BUF; |
138 | |
|
139 | 0 | if (type != 3) { |
140 | 0 | b = buf; |
141 | |
|
142 | 0 | while (php_stream_get_line(stream, b, EXEC_INPUT_BUF, &bufl)) { |
143 | | /* no new line found, let's read some more */ |
144 | 0 | if (b[bufl - 1] != '\n' && !php_stream_eof(stream)) { |
145 | 0 | if (buflen < (bufl + (b - buf) + EXEC_INPUT_BUF)) { |
146 | 0 | bufl += b - buf; |
147 | 0 | buflen = bufl + EXEC_INPUT_BUF; |
148 | 0 | buf = erealloc(buf, buflen); |
149 | 0 | b = buf + bufl; |
150 | 0 | } else { |
151 | 0 | b += bufl; |
152 | 0 | } |
153 | 0 | continue; |
154 | 0 | } else if (b != buf) { |
155 | 0 | bufl += b - buf; |
156 | 0 | } |
157 | | |
158 | 0 | bufl = handle_line(type, array, buf, bufl); |
159 | 0 | b = buf; |
160 | 0 | } |
161 | 0 | if (bufl) { |
162 | 0 | if (buf != b) { |
163 | | /* Process remaining output */ |
164 | 0 | bufl = handle_line(type, array, buf, bufl); |
165 | 0 | } |
166 | | |
167 | | /* Return last line from the shell command */ |
168 | 0 | bufl = strip_trailing_whitespace(buf, bufl); |
169 | 0 | RETVAL_STRINGL(buf, bufl); |
170 | 0 | } else { /* should return NULL, but for BC we return "" */ |
171 | 0 | RETVAL_EMPTY_STRING(); |
172 | 0 | } |
173 | 0 | } else { |
174 | 0 | ssize_t read; |
175 | 0 | while ((read = php_stream_read(stream, buf, EXEC_INPUT_BUF)) > 0) { |
176 | 0 | PHPWRITE(buf, read); |
177 | 0 | } |
178 | 0 | } |
179 | |
|
180 | 0 | pclose_return = php_stream_close(stream); |
181 | 0 | efree(buf); |
182 | |
|
183 | 0 | done: |
184 | | #if PHP_SIGCHILD |
185 | | if (sig_handler) { |
186 | | signal(SIGCHLD, sig_handler); |
187 | | } |
188 | | #endif |
189 | 0 | if (d) { |
190 | 0 | efree(d); |
191 | 0 | } |
192 | 0 | return pclose_return; |
193 | 0 | err: |
194 | 0 | pclose_return = -1; |
195 | 0 | RETVAL_FALSE; |
196 | 0 | goto done; |
197 | 0 | } |
198 | | /* }}} */ |
199 | | |
200 | | static void php_exec_ex(INTERNAL_FUNCTION_PARAMETERS, int mode) /* {{{ */ |
201 | 0 | { |
202 | 0 | char *cmd; |
203 | 0 | size_t cmd_len; |
204 | 0 | zval *ret_code=NULL, *ret_array=NULL; |
205 | 0 | int ret; |
206 | |
|
207 | 0 | ZEND_PARSE_PARAMETERS_START(1, (mode ? 2 : 3)) |
208 | 0 | Z_PARAM_STRING(cmd, cmd_len) |
209 | 0 | Z_PARAM_OPTIONAL |
210 | 0 | if (!mode) { |
211 | 0 | Z_PARAM_ZVAL(ret_array) |
212 | 0 | } |
213 | 0 | Z_PARAM_ZVAL(ret_code) |
214 | 0 | ZEND_PARSE_PARAMETERS_END(); |
215 | | |
216 | 0 | if (!cmd_len) { |
217 | 0 | zend_argument_must_not_be_empty_error(1); |
218 | 0 | RETURN_THROWS(); |
219 | 0 | } |
220 | 0 | if (strlen(cmd) != cmd_len) { |
221 | 0 | zend_argument_value_error(1, "must not contain any null bytes"); |
222 | 0 | RETURN_THROWS(); |
223 | 0 | } |
224 | | |
225 | 0 | if (!ret_array) { |
226 | 0 | ret = php_exec(mode, cmd, NULL, return_value); |
227 | 0 | } else { |
228 | 0 | if (Z_TYPE_P(Z_REFVAL_P(ret_array)) == IS_ARRAY) { |
229 | 0 | ZVAL_DEREF(ret_array); |
230 | 0 | SEPARATE_ARRAY(ret_array); |
231 | 0 | } else { |
232 | 0 | ret_array = zend_try_array_init(ret_array); |
233 | 0 | if (!ret_array) { |
234 | 0 | RETURN_THROWS(); |
235 | 0 | } |
236 | 0 | } |
237 | | |
238 | 0 | ret = php_exec(2, cmd, ret_array, return_value); |
239 | 0 | } |
240 | 0 | if (ret_code) { |
241 | 0 | ZEND_TRY_ASSIGN_REF_LONG(ret_code, ret); |
242 | 0 | } |
243 | 0 | } |
244 | | /* }}} */ |
245 | | |
246 | | /* {{{ Execute an external program */ |
247 | | PHP_FUNCTION(exec) |
248 | 0 | { |
249 | 0 | php_exec_ex(INTERNAL_FUNCTION_PARAM_PASSTHRU, 0); |
250 | 0 | } |
251 | | /* }}} */ |
252 | | |
253 | | /* {{{ Execute an external program and display output */ |
254 | | PHP_FUNCTION(system) |
255 | 0 | { |
256 | 0 | php_exec_ex(INTERNAL_FUNCTION_PARAM_PASSTHRU, 1); |
257 | 0 | } |
258 | | /* }}} */ |
259 | | |
260 | | /* {{{ Execute an external program and display raw output */ |
261 | | PHP_FUNCTION(passthru) |
262 | 0 | { |
263 | 0 | php_exec_ex(INTERNAL_FUNCTION_PARAM_PASSTHRU, 3); |
264 | 0 | } |
265 | | /* }}} */ |
266 | | |
267 | | /* {{{ php_escape_shell_cmd |
268 | | Escape all chars that could possibly be used to |
269 | | break out of a shell command |
270 | | |
271 | | This function returns an owned zend_string, remember to release it when done. |
272 | | |
273 | | *NOT* safe for binary strings |
274 | | */ |
275 | | PHPAPI zend_string *php_escape_shell_cmd(const zend_string *unescaped_cmd) |
276 | 0 | { |
277 | 0 | size_t x, y; |
278 | 0 | zend_string *cmd; |
279 | 0 | #ifndef PHP_WIN32 |
280 | 0 | char *p = NULL; |
281 | 0 | #endif |
282 | |
|
283 | 0 | ZEND_ASSERT(ZSTR_LEN(unescaped_cmd) == strlen(ZSTR_VAL(unescaped_cmd)) && "Must be a binary safe string"); |
284 | 0 | size_t l = ZSTR_LEN(unescaped_cmd); |
285 | 0 | const char *str = ZSTR_VAL(unescaped_cmd); |
286 | |
|
287 | 0 | uint64_t estimate = (2 * (uint64_t)l) + 1; |
288 | | |
289 | | /* max command line length - two single quotes - \0 byte length */ |
290 | 0 | if (l > cmd_max_len - 2 - 1) { |
291 | 0 | zend_value_error("Command exceeds the allowed length of %zu bytes", cmd_max_len); |
292 | 0 | return ZSTR_EMPTY_ALLOC(); |
293 | 0 | } |
294 | | |
295 | 0 | cmd = zend_string_safe_alloc(2, l, 0, 0); |
296 | |
|
297 | 0 | for (x = 0, y = 0; x < l; x++) { |
298 | 0 | int mb_len = php_mblen(str + x, (l - x)); |
299 | | |
300 | | /* skip non-valid multibyte characters */ |
301 | 0 | if (mb_len < 0) { |
302 | 0 | continue; |
303 | 0 | } else if (mb_len > 1) { |
304 | 0 | memcpy(ZSTR_VAL(cmd) + y, str + x, mb_len); |
305 | 0 | y += mb_len; |
306 | 0 | x += mb_len - 1; |
307 | 0 | continue; |
308 | 0 | } |
309 | | |
310 | 0 | switch (str[x]) { |
311 | 0 | #ifndef PHP_WIN32 |
312 | 0 | case '"': |
313 | 0 | case '\'': |
314 | 0 | if (!p && (p = memchr(str + x + 1, str[x], l - x - 1))) { |
315 | | /* noop */ |
316 | 0 | } else if (p && *p == str[x]) { |
317 | 0 | p = NULL; |
318 | 0 | } else { |
319 | 0 | ZSTR_VAL(cmd)[y++] = '\\'; |
320 | 0 | } |
321 | 0 | ZSTR_VAL(cmd)[y++] = str[x]; |
322 | 0 | break; |
323 | | #else |
324 | | /* % is Windows specific for environmental variables, ^%PATH% will |
325 | | output PATH while ^%PATH^% will not. escapeshellcmd->val will escape all % and !. |
326 | | */ |
327 | | case '%': |
328 | | case '!': |
329 | | case '"': |
330 | | case '\'': |
331 | | #endif |
332 | 0 | case '#': /* This is character-set independent */ |
333 | 0 | case '&': |
334 | 0 | case ';': |
335 | 0 | case '`': |
336 | 0 | case '|': |
337 | 0 | case '*': |
338 | 0 | case '?': |
339 | 0 | case '~': |
340 | 0 | case '<': |
341 | 0 | case '>': |
342 | 0 | case '^': |
343 | 0 | case '(': |
344 | 0 | case ')': |
345 | 0 | case '[': |
346 | 0 | case ']': |
347 | 0 | case '{': |
348 | 0 | case '}': |
349 | 0 | case '$': |
350 | 0 | case '\\': |
351 | 0 | case '\x0A': /* excluding these two */ |
352 | 0 | case '\xFF': |
353 | | #ifdef PHP_WIN32 |
354 | | ZSTR_VAL(cmd)[y++] = '^'; |
355 | | #else |
356 | 0 | ZSTR_VAL(cmd)[y++] = '\\'; |
357 | 0 | #endif |
358 | 0 | ZEND_FALLTHROUGH; |
359 | 0 | default: |
360 | 0 | ZSTR_VAL(cmd)[y++] = str[x]; |
361 | |
|
362 | 0 | } |
363 | 0 | } |
364 | 0 | ZSTR_VAL(cmd)[y] = '\0'; |
365 | |
|
366 | 0 | if (y > cmd_max_len + 1) { |
367 | 0 | zend_value_error("Escaped command exceeds the allowed length of %zu bytes", cmd_max_len); |
368 | 0 | zend_string_release_ex(cmd, 0); |
369 | 0 | return ZSTR_EMPTY_ALLOC(); |
370 | 0 | } |
371 | | |
372 | 0 | if ((estimate - y) > 4096) { |
373 | | /* realloc if the estimate was way overill |
374 | | * Arbitrary cutoff point of 4096 */ |
375 | 0 | cmd = zend_string_truncate(cmd, y, 0); |
376 | 0 | } |
377 | |
|
378 | 0 | ZSTR_LEN(cmd) = y; |
379 | |
|
380 | 0 | return cmd; |
381 | 0 | } |
382 | | /* }}} */ |
383 | | |
384 | | /* {{{ php_escape_shell_arg */ |
385 | | PHPAPI zend_string *php_escape_shell_arg(const zend_string *unescaped_arg) |
386 | 15 | { |
387 | 15 | size_t x, y = 0; |
388 | 15 | zend_string *cmd; |
389 | | |
390 | 15 | ZEND_ASSERT(ZSTR_LEN(unescaped_arg) == strlen(ZSTR_VAL(unescaped_arg)) && "Must be a binary safe string"); |
391 | 15 | size_t l = ZSTR_LEN(unescaped_arg); |
392 | 15 | const char *str = ZSTR_VAL(unescaped_arg); |
393 | | |
394 | 15 | uint64_t estimate = (4 * (uint64_t)l) + 3; |
395 | | |
396 | | /* max command line length - two single quotes - \0 byte length */ |
397 | 15 | if (l > cmd_max_len - 2 - 1) { |
398 | 0 | zend_value_error("Argument exceeds the allowed length of %zu bytes", cmd_max_len); |
399 | 0 | return ZSTR_EMPTY_ALLOC(); |
400 | 0 | } |
401 | | |
402 | 15 | cmd = zend_string_safe_alloc(4, l, 2, 0); /* worst case */ |
403 | | |
404 | | #ifdef PHP_WIN32 |
405 | | ZSTR_VAL(cmd)[y++] = '"'; |
406 | | #else |
407 | 15 | ZSTR_VAL(cmd)[y++] = '\''; |
408 | 15 | #endif |
409 | | |
410 | 413 | for (x = 0; x < l; x++) { |
411 | 398 | int mb_len = php_mblen(str + x, (l - x)); |
412 | | |
413 | | /* skip non-valid multibyte characters */ |
414 | 398 | if (mb_len < 0) { |
415 | 12 | continue; |
416 | 386 | } else if (mb_len > 1) { |
417 | 0 | memcpy(ZSTR_VAL(cmd) + y, str + x, mb_len); |
418 | 0 | y += mb_len; |
419 | 0 | x += mb_len - 1; |
420 | 0 | continue; |
421 | 0 | } |
422 | | |
423 | 386 | switch (str[x]) { |
424 | | #ifdef PHP_WIN32 |
425 | | case '"': |
426 | | case '%': |
427 | | case '!': |
428 | | ZSTR_VAL(cmd)[y++] = ' '; |
429 | | break; |
430 | | #else |
431 | 0 | case '\'': |
432 | 0 | ZSTR_VAL(cmd)[y++] = '\''; |
433 | 0 | ZSTR_VAL(cmd)[y++] = '\\'; |
434 | 0 | ZSTR_VAL(cmd)[y++] = '\''; |
435 | 0 | #endif |
436 | 0 | ZEND_FALLTHROUGH; |
437 | 386 | default: |
438 | 386 | ZSTR_VAL(cmd)[y++] = str[x]; |
439 | 386 | } |
440 | 386 | } |
441 | | #ifdef PHP_WIN32 |
442 | | if (y > 0 && '\\' == ZSTR_VAL(cmd)[y - 1]) { |
443 | | int k = 0, n = y - 1; |
444 | | for (; n >= 0 && '\\' == ZSTR_VAL(cmd)[n]; n--, k++); |
445 | | if (k % 2) { |
446 | | ZSTR_VAL(cmd)[y++] = '\\'; |
447 | | } |
448 | | } |
449 | | |
450 | | ZSTR_VAL(cmd)[y++] = '"'; |
451 | | #else |
452 | 15 | ZSTR_VAL(cmd)[y++] = '\''; |
453 | 15 | #endif |
454 | 15 | ZSTR_VAL(cmd)[y] = '\0'; |
455 | | |
456 | 15 | if (y > cmd_max_len + 1) { |
457 | 0 | zend_value_error("Escaped argument exceeds the allowed length of %zu bytes", cmd_max_len); |
458 | 0 | zend_string_release_ex(cmd, 0); |
459 | 0 | return ZSTR_EMPTY_ALLOC(); |
460 | 0 | } |
461 | | |
462 | 15 | if ((estimate - y) > 4096) { |
463 | | /* realloc if the estimate was way overill |
464 | | * Arbitrary cutoff point of 4096 */ |
465 | 0 | cmd = zend_string_truncate(cmd, y, 0); |
466 | 0 | } |
467 | 15 | ZSTR_LEN(cmd) = y; |
468 | 15 | return cmd; |
469 | 15 | } |
470 | | /* }}} */ |
471 | | |
472 | | /* {{{ Escape shell metacharacters */ |
473 | | PHP_FUNCTION(escapeshellcmd) |
474 | 0 | { |
475 | 0 | zend_string *command; |
476 | |
|
477 | 0 | ZEND_PARSE_PARAMETERS_START(1, 1) |
478 | 0 | Z_PARAM_PATH_STR(command) |
479 | 0 | ZEND_PARSE_PARAMETERS_END(); |
480 | | |
481 | 0 | if (ZSTR_LEN(command)) { |
482 | 0 | RETVAL_STR(php_escape_shell_cmd(command)); |
483 | 0 | } else { |
484 | 0 | RETVAL_EMPTY_STRING(); |
485 | 0 | } |
486 | 0 | } |
487 | | /* }}} */ |
488 | | |
489 | | /* {{{ Quote and escape an argument for use in a shell command */ |
490 | | PHP_FUNCTION(escapeshellarg) |
491 | 15 | { |
492 | 15 | zend_string *argument; |
493 | | |
494 | 45 | ZEND_PARSE_PARAMETERS_START(1, 1) |
495 | 60 | Z_PARAM_PATH_STR(argument) |
496 | 15 | ZEND_PARSE_PARAMETERS_END(); |
497 | | |
498 | 15 | RETVAL_STR(php_escape_shell_arg(argument)); |
499 | 15 | } |
500 | | /* }}} */ |
501 | | |
502 | | /* {{{ Execute command via shell and return complete output as string */ |
503 | | PHP_FUNCTION(shell_exec) |
504 | 0 | { |
505 | 0 | FILE *in; |
506 | 0 | char *command; |
507 | 0 | size_t command_len; |
508 | 0 | zend_string *ret; |
509 | 0 | php_stream *stream; |
510 | |
|
511 | 0 | ZEND_PARSE_PARAMETERS_START(1, 1) |
512 | 0 | Z_PARAM_PATH(command, command_len) |
513 | 0 | ZEND_PARSE_PARAMETERS_END(); |
514 | | |
515 | 0 | if (!command_len) { |
516 | 0 | zend_argument_must_not_be_empty_error(1); |
517 | 0 | RETURN_THROWS(); |
518 | 0 | } |
519 | | |
520 | | #ifdef PHP_WIN32 |
521 | | if ((in=VCWD_POPEN(command, "rt"))==NULL) { |
522 | | #else |
523 | 0 | if ((in=VCWD_POPEN(command, "r"))==NULL) { |
524 | 0 | #endif |
525 | 0 | php_error_docref(NULL, E_WARNING, "Unable to execute '%s'", command); |
526 | 0 | RETURN_FALSE; |
527 | 0 | } |
528 | | |
529 | 0 | stream = php_stream_fopen_from_pipe(in, "rb"); |
530 | 0 | ret = php_stream_copy_to_mem(stream, PHP_STREAM_COPY_ALL, 0); |
531 | 0 | php_stream_close(stream); |
532 | |
|
533 | 0 | if (ret && ZSTR_LEN(ret) > 0) { |
534 | 0 | RETVAL_STR(ret); |
535 | 0 | } |
536 | 0 | } |
537 | | /* }}} */ |
538 | | |
539 | | #ifdef HAVE_NICE |
540 | | /* {{{ Change the priority of the current process */ |
541 | | PHP_FUNCTION(proc_nice) |
542 | 0 | { |
543 | 0 | zend_long pri; |
544 | |
|
545 | 0 | ZEND_PARSE_PARAMETERS_START(1, 1) |
546 | 0 | Z_PARAM_LONG(pri) |
547 | 0 | ZEND_PARSE_PARAMETERS_END(); |
548 | | |
549 | 0 | errno = 0; |
550 | 0 | php_ignore_value(nice(pri)); |
551 | 0 | if (errno) { |
552 | | #ifdef PHP_WIN32 |
553 | | char *err = php_win_err(); |
554 | | php_error_docref(NULL, E_WARNING, "%s", err); |
555 | | php_win_err_free(err); |
556 | | #else |
557 | 0 | php_error_docref(NULL, E_WARNING, "Only a super user may attempt to increase the priority of a process"); |
558 | 0 | #endif |
559 | 0 | RETURN_FALSE; |
560 | 0 | } |
561 | | |
562 | 0 | RETURN_TRUE; |
563 | 0 | } |
564 | | /* }}} */ |
565 | | #endif |