1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227
|
/*
Copyright (C) 1999 J.H.M. Dassen (Ray) <jdassen@wi.LeidenUniv.nl>
Copyright (C) 1999 Antti-Juhani Kaijanaho <gaia@iki.fi>
Copyright (C) 2002 Bjoern Brill <brill@fs.math.uni-frankfurt.de>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <ctype.h>
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include <stdarg.h>
#include "util.h"
int msglevel = 0; /* the higher, the more messages... */
int suppress_warnings = 0; /* flag */
int num_warnings = 0; /* count */
void warning(const char * format, ...)
{
va_list args;
++num_warnings;
va_start(args, format);
if (!suppress_warnings) vfprintf(stderr, format, args);
va_end(args);
}
void panic(const char * format, ...)
{
va_list args;
va_start(args, format);
vfprintf(stderr, format, args);
va_end(args);
exit(EXIT_FAILURE);
}
#if defined(NDEBUG) && defined(__GNUC__)
/* Nothing. eassert has been "defined away" in util.h already. */
#else
void eassert(int expr, const char * format, ...) {
#ifdef NDEBUG
/* Empty body, so a good compiler will optimise calls away */
#else
va_list args;
if (!expr) {
va_start(args, format);
vfprintf(stderr, format, args);
va_end(args);
exit(EXIT_FAILURE);
}
#endif /* NDEBUG */
}
#endif /* NDEBUG && __GNUC__ */
#if defined(NDEBUG) && defined(__GNUC__)
/* Nothing. pmesg has been "defined away" in util.h already. */
#else
void pmesg(int level, const char * format, ...) {
#ifdef NDEBUG
/* Empty body, so a good compiler will optimise calls
to pmesg away */
#else
va_list args;
if (level>msglevel)
return;
va_start(args, format);
vfprintf(stderr, format, args);
va_end(args);
#endif /* NDEBUG */
#endif /* NDEBUG && __GNUC__ */
}
const char * const util_notreached_format =
"Please report a bug. Include in the report "
"the following information,\n"
"exactly as it is written here: "
"\"%s:%i was reached\".\n"
"Please include in your report as much detail "
"as possible about what you\n"
"were doing at the "
"time you saw this message. Thank you.\n";
const char * const util_oom_format = "Out of memory (near %s line %d)\n";
void * util_xmalloc(size_t size, const char * file, int line)
{
void * res;
res = malloc(size);
if(res == NULL && size != 0) panic(util_oom_format, file, line);
return res;
}
/* Simulate malloc(0) == NULL behaviour with GNU libc.
* Useful for debugging purposes only.
* Does not work with C libraries different from GNU libc!
*/
#ifdef USE_MALLOC0
#include <malloc.h>
typedef void * mallhook_func(size_t, const void *);
mallhook_func * old_mallhook;
/* our replacement malloc */
void * malloc0(size_t size, const void * caller);
void * malloc0(size_t size, const void * caller)
{
void * result;
if(size == 0) return NULL;
/* restore old hook */
__malloc_hook = old_mallhook;
/* call real malloc */
result = malloc(size);
/* save old hook again because it may have changed itself */
old_mallhook = __malloc_hook;
/* hook in again */
__malloc_hook = &malloc0;
return result;
}
void use_malloc0(void)
{
/* save old hook */
old_mallhook = __malloc_hook;
/* set to our one */
__malloc_hook = malloc0;
}
#endif /* USE_MALLOC0 */
void strupcase(char * s)
{
register char * p;
for (p = s; *p !=0; ++p) {
*p = islower(*p) ?
toupper(*p) :
*p;
}
}
char * strupcasedup(char const * s)
{
char * su;
su = malloc(strlen(s) + 1);
if (su == NULL) return NULL;
strcpy(su, s);
/* We don't use strdup because it's not part of ISO C. */
strupcase(su);
return su;
}
int patmatch(char const * pat, char const * s)
{
for( ; *pat != 0; ++pat, ++s) {
switch(*pat) {
case '*':
++pat;
if(*pat == 0) return 1;
/* speedup in frequent case that pattern ends with '*' */
do {
if(patmatch(pat, s)) return 1;
} while(*s++ != 0);
return 0;
case '?':
if(*s == 0) return 0;
break;
#if 0
/* Possibly useful extension: '+' matches 0 or 1 characters.
* Or even interchange '+', '?' ? Disabeled for now.
*/
case '+':
++pat;
return ((*s != 0) && patmatch(pat, s+1)) || patmatch(pat, s);
#endif
case '#':
if(!isdigit(*s)) return 0;
break;
#if 0
/* Possibly useful extension: '\\' protects next char from
* wildcard interpretation. Disabeled for now.
*/
case '\\':
++pat;
assert(*pat != 0);
/* fall through to default */
#endif
default:
if(*pat != *s) return 0;
/* this covers premature end of s, too */
} /* switch */
} /* for */
return (*s == 0);
}
|