blob: 344028f44d3b63d21fa0a5932bea4cc4b6bc3159
| 1 | /* vi: set sw=4 ts=4: */ |
| 2 | /* |
| 3 | * Utility routines. |
| 4 | * |
| 5 | * Copyright (C) many different people. |
| 6 | * If you wrote this, please acknowledge your work. |
| 7 | * |
| 8 | * Licensed under GPLv2 or later, see file LICENSE in this source tree. |
| 9 | */ |
| 10 | |
| 11 | #include "libbb.h" |
| 12 | #include "xregex.h" |
| 13 | |
| 14 | char* FAST_FUNC regcomp_or_errmsg(regex_t *preg, const char *regex, int cflags) |
| 15 | { |
| 16 | int ret = regcomp(preg, regex, cflags); |
| 17 | if (ret) { |
| 18 | int errmsgsz = regerror(ret, preg, NULL, 0); |
| 19 | char *errmsg = xmalloc(errmsgsz); |
| 20 | regerror(ret, preg, errmsg, errmsgsz); |
| 21 | return errmsg; |
| 22 | } |
| 23 | return NULL; |
| 24 | } |
| 25 | |
| 26 | void FAST_FUNC xregcomp(regex_t *preg, const char *regex, int cflags) |
| 27 | { |
| 28 | char *errmsg = regcomp_or_errmsg(preg, regex, cflags); |
| 29 | if (errmsg) { |
| 30 | bb_error_msg_and_die("bad regex '%s': %s", regex, errmsg); |
| 31 | } |
| 32 | } |
| 33 |