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/*
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);
}
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