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      1 /**********************************************************************
      2   regposerr.c - Oniguruma (regular expression library)
      3 **********************************************************************/
      4 /*-
      5  * Copyright (c) 2002-2007  K.Kosako  <sndgk393 AT ybb DOT ne DOT jp>
      6  * All rights reserved.
      7  *
      8  * (C) Copyright 2015 Hewlett Packard Enterprise Development LP<BR>
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     29  * SUCH DAMAGE.
     30  */
     31 
     32 /*#include "config.h"*/
     33 #include "onigposix.h"
     34 
     35 #if 0
     36 #ifdef HAVE_STRING_H
     37 # include <string.h>
     38 #else
     39 # include <strings.h>
     40 #endif
     41 #endif
     42 
     43 #if defined(__GNUC__)
     44 #  define ARG_UNUSED  __attribute__ ((unused))
     45 #else
     46 #  define ARG_UNUSED
     47 #endif
     48 
     49 static char* ESTRING[] = {
     50   NULL,
     51   "failed to match",                         /* REG_NOMATCH    */
     52   "Invalid regular expression",              /* REG_BADPAT     */
     53   "invalid collating element referenced",    /* REG_ECOLLATE   */
     54   "invalid character class type referenced", /* REG_ECTYPE     */
     55   "bad backslash-escape sequence",           /* REG_EESCAPE    */
     56   "invalid back reference number",           /* REG_ESUBREG    */
     57   "imbalanced [ and ]",                      /* REG_EBRACK     */
     58   "imbalanced ( and )",                      /* REG_EPAREN     */
     59   "imbalanced { and }",                      /* REG_EBRACE     */
     60   "invalid repeat range {n,m}",              /* REG_BADBR      */
     61   "invalid range",                           /* REG_ERANGE     */
     62   "Out of memory",                           /* REG_ESPACE     */
     63   "? * + not preceded by valid regular expression", /* REG_BADRPT   */
     64 
     65   /* Extended errors */
     66   "internal error",                          /* REG_EONIG_INTERNAL */
     67   "invalid wide char value",                 /* REG_EONIG_BADWC    */
     68   "invalid argument",                        /* REG_EONIG_BADARG   */
     69   "multi-thread error"                       /* REG_EONIG_THREAD   */
     70 };
     71 
     72 //#include <stdio.h>
     73 
     74 
     75 extern size_t
     76 regerror(int posix_ecode, const regex_t* reg ARG_UNUSED, char* buf,
     77 	 size_t size)
     78 {
     79   char* s;
     80   char tbuf[35];
     81   size_t len;
     82 
     83   if (posix_ecode > 0
     84       && posix_ecode < (int )(sizeof(ESTRING) / sizeof(ESTRING[0]))) {
     85     s = ESTRING[posix_ecode];
     86   }
     87   else if (posix_ecode == 0) {
     88     s = "";
     89   }
     90   else {
     91     sprintf_s(tbuf, sizeof(tbuf), "undefined error code (%d)", posix_ecode);
     92     s = tbuf;
     93   }
     94 
     95   len = strlen_s(s, MAX_STRING_SIZE) + 1; /* use strlen() because s is ascii encoding. */
     96 
     97   if (buf != NULL && size > 0) {
     98     strncpy_s(buf, size, s, size - 1);
     99     buf[size - 1] = '\0';
    100   }
    101   return len;
    102 }
    103