11573Srgrimes/*- 21573Srgrimes * Copyright (c) 1992, 1993, 1994 Henry Spencer. 31573Srgrimes * Copyright (c) 1992, 1993, 1994 41573Srgrimes * The Regents of the University of California. All rights reserved. 51573Srgrimes * 61573Srgrimes * This code is derived from software contributed to Berkeley by 71573Srgrimes * Henry Spencer. 81573Srgrimes * 91573Srgrimes * Redistribution and use in source and binary forms, with or without 101573Srgrimes * modification, are permitted provided that the following conditions 111573Srgrimes * are met: 121573Srgrimes * 1. Redistributions of source code must retain the above copyright 131573Srgrimes * notice, this list of conditions and the following disclaimer. 141573Srgrimes * 2. Redistributions in binary form must reproduce the above copyright 151573Srgrimes * notice, this list of conditions and the following disclaimer in the 161573Srgrimes * documentation and/or other materials provided with the distribution. 171573Srgrimes * 4. Neither the name of the University nor the names of its contributors 181573Srgrimes * may be used to endorse or promote products derived from this software 191573Srgrimes * without specific prior written permission. 201573Srgrimes * 211573Srgrimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 221573Srgrimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 231573Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 241573Srgrimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 251573Srgrimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 261573Srgrimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 271573Srgrimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 281573Srgrimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 291573Srgrimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 301573Srgrimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 311573Srgrimes * SUCH DAMAGE. 321573Srgrimes * 331573Srgrimes * @(#)regerror.c 8.4 (Berkeley) 3/20/94 341573Srgrimes */ 351573Srgrimes 361573Srgrimes#if defined(LIBC_SCCS) && !defined(lint) 371573Srgrimesstatic char sccsid[] = "@(#)regerror.c 8.4 (Berkeley) 3/20/94"; 381573Srgrimes#endif /* LIBC_SCCS and not lint */ 3992889Sobrien#include <sys/cdefs.h> 4092889Sobrien__FBSDID("$FreeBSD$"); 411573Srgrimes 421573Srgrimes#include <sys/types.h> 431573Srgrimes#include <stdio.h> 441573Srgrimes#include <string.h> 451573Srgrimes#include <limits.h> 461573Srgrimes#include <stdlib.h> 471573Srgrimes#include <regex.h> 481573Srgrimes 491573Srgrimes#include "utils.h" 501573Srgrimes 511573Srgrimes/* ========= begin header generated by ./mkh ========= */ 521573Srgrimes#ifdef __cplusplus 531573Srgrimesextern "C" { 541573Srgrimes#endif 551573Srgrimes 561573Srgrimes/* === regerror.c === */ 5792905Sobrienstatic char *regatoi(const regex_t *preg, char *localbuf); 581573Srgrimes 591573Srgrimes#ifdef __cplusplus 601573Srgrimes} 611573Srgrimes#endif 621573Srgrimes/* ========= end header generated by ./mkh ========= */ 631573Srgrimes/* 641573Srgrimes = #define REG_NOMATCH 1 651573Srgrimes = #define REG_BADPAT 2 661573Srgrimes = #define REG_ECOLLATE 3 671573Srgrimes = #define REG_ECTYPE 4 681573Srgrimes = #define REG_EESCAPE 5 691573Srgrimes = #define REG_ESUBREG 6 701573Srgrimes = #define REG_EBRACK 7 711573Srgrimes = #define REG_EPAREN 8 721573Srgrimes = #define REG_EBRACE 9 731573Srgrimes = #define REG_BADBR 10 741573Srgrimes = #define REG_ERANGE 11 751573Srgrimes = #define REG_ESPACE 12 761573Srgrimes = #define REG_BADRPT 13 771573Srgrimes = #define REG_EMPTY 14 781573Srgrimes = #define REG_ASSERT 15 791573Srgrimes = #define REG_INVARG 16 80132017Stjr = #define REG_ILLSEQ 17 811573Srgrimes = #define REG_ATOI 255 // convert name to number (!) 821573Srgrimes = #define REG_ITOA 0400 // convert number to name (!) 831573Srgrimes */ 841573Srgrimesstatic struct rerr { 851573Srgrimes int code; 861573Srgrimes char *name; 871573Srgrimes char *explain; 881573Srgrimes} rerrs[] = { 8917141Sjkh {REG_NOMATCH, "REG_NOMATCH", "regexec() failed to match"}, 9017141Sjkh {REG_BADPAT, "REG_BADPAT", "invalid regular expression"}, 9117141Sjkh {REG_ECOLLATE, "REG_ECOLLATE", "invalid collating element"}, 9217141Sjkh {REG_ECTYPE, "REG_ECTYPE", "invalid character class"}, 9317141Sjkh {REG_EESCAPE, "REG_EESCAPE", "trailing backslash (\\)"}, 9417141Sjkh {REG_ESUBREG, "REG_ESUBREG", "invalid backreference number"}, 9517141Sjkh {REG_EBRACK, "REG_EBRACK", "brackets ([ ]) not balanced"}, 9617141Sjkh {REG_EPAREN, "REG_EPAREN", "parentheses not balanced"}, 9717141Sjkh {REG_EBRACE, "REG_EBRACE", "braces not balanced"}, 9817141Sjkh {REG_BADBR, "REG_BADBR", "invalid repetition count(s)"}, 9917141Sjkh {REG_ERANGE, "REG_ERANGE", "invalid character range"}, 10017141Sjkh {REG_ESPACE, "REG_ESPACE", "out of memory"}, 10117141Sjkh {REG_BADRPT, "REG_BADRPT", "repetition-operator operand invalid"}, 10217141Sjkh {REG_EMPTY, "REG_EMPTY", "empty (sub)expression"}, 10317141Sjkh {REG_ASSERT, "REG_ASSERT", "\"can't happen\" -- you found a bug"}, 10417141Sjkh {REG_INVARG, "REG_INVARG", "invalid argument to regex routine"}, 105132017Stjr {REG_ILLSEQ, "REG_ILLSEQ", "illegal byte sequence"}, 10617141Sjkh {0, "", "*** unknown regexp error code ***"} 1071573Srgrimes}; 1081573Srgrimes 1091573Srgrimes/* 1101573Srgrimes - regerror - the interface to error numbers 1111573Srgrimes = extern size_t regerror(int, const regex_t *, char *, size_t); 1121573Srgrimes */ 1131573Srgrimes/* ARGSUSED */ 1141573Srgrimessize_t 115170528Sdelphijregerror(int errcode, 116170528Sdelphij const regex_t * __restrict preg, 117170528Sdelphij char * __restrict errbuf, 118170528Sdelphij size_t errbuf_size) 1191573Srgrimes{ 12092889Sobrien struct rerr *r; 12192889Sobrien size_t len; 12292889Sobrien int target = errcode &~ REG_ITOA; 12392889Sobrien char *s; 1241573Srgrimes char convbuf[50]; 1251573Srgrimes 1261573Srgrimes if (errcode == REG_ATOI) 1271573Srgrimes s = regatoi(preg, convbuf); 1281573Srgrimes else { 1291573Srgrimes for (r = rerrs; r->code != 0; r++) 1301573Srgrimes if (r->code == target) 1311573Srgrimes break; 1328870Srgrimes 1331573Srgrimes if (errcode®_ITOA) { 1341573Srgrimes if (r->code != 0) 1351573Srgrimes (void) strcpy(convbuf, r->name); 1361573Srgrimes else 1371573Srgrimes sprintf(convbuf, "REG_0x%x", target); 1381573Srgrimes assert(strlen(convbuf) < sizeof(convbuf)); 1391573Srgrimes s = convbuf; 1401573Srgrimes } else 1411573Srgrimes s = r->explain; 1421573Srgrimes } 1431573Srgrimes 1441573Srgrimes len = strlen(s) + 1; 1451573Srgrimes if (errbuf_size > 0) { 1461573Srgrimes if (errbuf_size > len) 1471573Srgrimes (void) strcpy(errbuf, s); 1481573Srgrimes else { 1491573Srgrimes (void) strncpy(errbuf, s, errbuf_size-1); 1501573Srgrimes errbuf[errbuf_size-1] = '\0'; 1511573Srgrimes } 1521573Srgrimes } 1531573Srgrimes 1541573Srgrimes return(len); 1551573Srgrimes} 1561573Srgrimes 1571573Srgrimes/* 1581573Srgrimes - regatoi - internal routine to implement REG_ATOI 1591573Srgrimes == static char *regatoi(const regex_t *preg, char *localbuf); 1601573Srgrimes */ 1611573Srgrimesstatic char * 162170528Sdelphijregatoi(const regex_t *preg, char *localbuf) 1631573Srgrimes{ 16492889Sobrien struct rerr *r; 1651573Srgrimes 1661573Srgrimes for (r = rerrs; r->code != 0; r++) 1671573Srgrimes if (strcmp(r->name, preg->re_endp) == 0) 1681573Srgrimes break; 1691573Srgrimes if (r->code == 0) 1701573Srgrimes return("0"); 1711573Srgrimes 1721573Srgrimes sprintf(localbuf, "%d", r->code); 1731573Srgrimes return(localbuf); 1741573Srgrimes} 175