95 lines
2.8 KiB
C
95 lines
2.8 KiB
C
/*===========================================================================
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Copyright (c) 1998-2000, The Santa Cruz Operation
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All rights reserved.
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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,
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this 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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*Neither name of The Santa Cruz Operation nor the names of its contributors
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may be used to endorse or promote products derived from this software
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without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS
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IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE
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LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION)
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HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
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DAMAGE.
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=========================================================================*/
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/* memory allocation functions */
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#include <stdio.h>
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#include <string.h>
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#include "alloc.h"
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#include "global.h" /* for postfatal() */
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static char const rcsid[] = "$Id: alloc.c,v 1.8 2006/07/23 20:59:20 broeker Exp $";
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static void *alloctest(void *p);
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/* let autoconf find out if <stdlib.h> is available. This test will
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* succeed more reliably than the defined(__STDC__) one I replaced */
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#if STDC_HEADERS
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# include <stdlib.h>
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#else
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char *calloc(), *malloc(), *realloc(), *strcpy();
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#endif
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/* allocate a string */
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char *
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my_strdup(char *s)
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{
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return(strcpy(mymalloc(strlen(s) + 1), s));
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}
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/* version of malloc that only returns if successful */
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void *
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mymalloc(size_t size)
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{
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return(alloctest(malloc((unsigned) size)));
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}
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/* version of calloc that only returns if successful */
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void *
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mycalloc(size_t nelem, size_t size)
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{
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return(alloctest(calloc((unsigned) nelem, (unsigned) size)));
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}
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/* version of realloc that only returns if successful */
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void *
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myrealloc(void *p, size_t size)
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{
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return(alloctest(realloc(p, (unsigned) size)));
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}
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/* check for memory allocation failure */
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static void *
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alloctest(void *p)
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{
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if (p == NULL) {
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postfatal("\n%s: out of storage\n", argv0);
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/* NOTREACHED */
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}
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return(p);
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}
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