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91 lines
2.6 KiB
C
91 lines
2.6 KiB
C
/* Copyright (C) 2000-2008 by George Williams */
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/*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
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* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "ustring.h"
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/* wrappers around standard memory routines so we can trap errors. */
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static void default_trap(void) {
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fprintf(stderr, "Attempt to allocate memory failed.\n" );
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abort();
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}
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static void (*trap)(void) = default_trap;
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void galloc_set_trap(void (*newtrap)(void)) {
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if ( newtrap==NULL ) newtrap = default_trap;
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trap = newtrap;
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}
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void *galloc(long size) {
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void *ret;
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while (( ret = malloc(size))==NULL )
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trap();
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memset(ret,0x3c,size); /* fill with random junk for debugging */
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return( ret );
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}
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void *gcalloc(int cnt,long size) {
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void *ret;
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while (( ret = calloc(cnt,size))==NULL )
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trap();
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return( ret );
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}
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void *grealloc(void *old,long size) {
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void *ret;
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while (( ret = realloc(old,size))==NULL )
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trap();
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return( ret );
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}
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void gfree(void *old) {
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free(old);
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}
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char *copy(const char *str) {
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char *ret;
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if ( str==NULL )
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return( NULL );
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ret = galloc(strlen(str)+1);
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strcpy(ret,str);
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return( ret );
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}
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char *copyn(const char *str,long n) {
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char *ret;
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if ( str==NULL )
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return( NULL );
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ret = galloc(n+1);
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memcpy(ret,str,n);
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ret[n]='\0';
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return( ret );
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}
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