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Sources/opkg-lede/libopkg/xregex.c

  1 /* xregex.c - regex functions with error messages
  2 
  3    Carl D. Worth
  4 
  5    Copyright (C) 2001 University of Southern California
  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, or (at your option)
 10    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 
 18 #include "xregex.h"
 19 #include "libbb/libbb.h"
 20 
 21 static void print_regcomp_err(const regex_t * preg, int err);
 22 
 23 int xregcomp(regex_t * preg, const char *regex, int cflags)
 24 {
 25         int err;
 26         err = regcomp(preg, regex, cflags);
 27         if (err) {
 28                 print_regcomp_err(preg, err);
 29         }
 30 
 31         return err;
 32 }
 33 
 34 static void print_regcomp_err(const regex_t * preg, int err)
 35 {
 36         unsigned int size;
 37         char *error;
 38 
 39         size = regerror(err, preg, 0, 0);
 40         error = xcalloc(1, size);
 41         regerror(err, preg, error, size);
 42 
 43         opkg_msg(ERROR, "Internal error compiling regex: %s.", error);
 44 
 45         free(error);
 46 }
 47 

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