110 lines
3.1 KiB
C
110 lines
3.1 KiB
C
/*
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* Copyright (c) 1999 Todd C. Miller <Todd.Miller@courtesan.com>
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* All rights reserved.
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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
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. 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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*
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
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* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
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* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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* THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* 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 "config.h"
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#include <stdio.h>
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#ifdef STDC_HEADERS
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#include <stdlib.h>
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#endif /* STDC_HEADERS */
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#ifdef HAVE_STRING_H
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#include <string.h>
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#endif /* HAVE_STRING_H */
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#ifdef HAVE_STRINGS_H
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#include <strings.h>
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#endif /* HAVE_STRINGS_H */
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#if defined(HAVE_MALLOC_H) && !defined(STDC_HEADERS)
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#include <malloc.h>
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#endif /* HAVE_MALLOC_H && !STDC_HEADERS */
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#include "compat.h"
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#ifndef STDC_HEADERS
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#if !defined(__GNUC__) && !defined(HAVE_MALLOC_H)
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extern VOID *malloc __P((size_t));
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#endif /* !__GNUC__ && !HAVE_MALLOC_H */
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#endif /* !STDC_HEADERS */
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extern char **Argv; /* from sudo.c */
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#ifndef lint
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static const char rcsid[] = "$Sudo$";
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#endif /* lint */
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/*
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* emalloc() calls the system malloc(3) and exits with an error if
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* malloc(3) fails.
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*/
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VOID *
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emalloc(size)
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size_t size;
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{
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VOID *ptr;
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if ((ptr = malloc(size)) == NULL) {
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(void) fprintf(stderr, "%s: cannot allocate memory!\n", Argv[0]);
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exit(1);
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}
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return(ptr);
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}
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/*
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* erealloc() calls the system realloc(3) and exits with an error if
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* realloc(3) fails. You can call erealloc() with a NULL pointer even
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* if the system realloc(3) does not support this.
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*/
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VOID *
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erealloc(ptr, size)
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VOID *ptr;
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size_t size;
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{
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if ((ptr = ptr ? realloc(ptr, size) : malloc(size)) == NULL) {
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(void) fprintf(stderr, "%s: cannot allocate memory!\n", Argv[0]);
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exit(1);
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}
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return(ptr);
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}
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/*
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* estrdup() is like strdup(3) except that it exits with an error if
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* malloc(3) fails. NOTE: unlike strdup(3), estrdup(NULL) is legal.
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*/
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char *
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estrdup(src)
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const char *src;
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{
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char *dst = NULL;
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if (src != NULL) {
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dst = (char *) emalloc(strlen(src) + 1);
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(void) strcpy(dst, src);
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}
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return(dst);
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}
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