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/*
* Copyright (c) 1999-2002 Todd C. Miller <Todd.Miller@courtesan.com>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* 4. Products derived from this software may not be called "Sudo" nor
* may "Sudo" appear in their names without specific prior written
* permission from the author.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
* THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include <sys/types.h>
#include <sys/param.h>
#include <stdio.h>
#ifdef STDC_HEADERS
# include <stdlib.h>
# include <stddef.h>
#else
# ifdef HAVE_STDLIB_H
# include <stdlib.h>
# endif
#endif /* STDC_HEADERS */
#ifdef HAVE_STRING_H
# include <string.h>
#else
# ifdef HAVE_STRINGS_H
# include <strings.h>
# endif
#endif /* HAVE_STRING_H */
#if defined(HAVE_MALLOC_H) && !defined(STDC_HEADERS)
# include <malloc.h>
#endif /* HAVE_MALLOC_H && !STDC_HEADERS */
#include "sudo.h"
#ifndef lint
static const char rcsid[] = "$Sudo: alloc.c,v 1.11 2002/01/09 16:56:04 millert Exp $";
#endif /* lint */
extern char **Argv; /* from sudo.c */
/*
* emalloc() calls the system malloc(3) and exits with an error if
* malloc(3) fails.
*/
VOID *
emalloc(size)
size_t size;
{
VOID *ptr;
if ((ptr = (VOID *) malloc(size)) == NULL) {
(void) fprintf(stderr, "%s: cannot allocate memory!\n", Argv[0]);
exit(1);
}
return(ptr);
}
/*
* erealloc() calls the system realloc(3) and exits with an error if
* realloc(3) fails. You can call erealloc() with a NULL pointer even
* if the system realloc(3) does not support this.
*/
VOID *
erealloc(ptr, size)
VOID *ptr;
size_t size;
{
ptr = ptr ? (VOID *) realloc(ptr, size) : (VOID *) malloc(size);
if (ptr == NULL) {
(void) fprintf(stderr, "%s: cannot allocate memory!\n", Argv[0]);
exit(1);
}
return(ptr);
}
/*
* estrdup() is like strdup(3) except that it exits with an error if
* malloc(3) fails. NOTE: unlike strdup(3), estrdup(NULL) is legal.
*/
char *
estrdup(src)
const char *src;
{
char *dst = NULL;
if (src != NULL) {
dst = (char *) emalloc(strlen(src) + 1);
(void) strcpy(dst, src);
}
return(dst);
}
/*
* easprintf() calls vasprintf() and exits with an error if vasprintf()
* returns -1 (out of memory).
*/
int
#ifdef __STDC__
easprintf(char **ret, const char *fmt, ...)
#else
easprintf(va_alist)
va_dcl
#endif
{
int len;
va_list ap;
#ifdef __STDC__
va_start(ap, fmt);
#else
char **ret;
const char *fmt;
va_start(ap);
ret = va_arg(ap, char **);
fmt = va_arg(ap, const char *);
#endif
len = vasprintf(ret, fmt, ap);
va_end(ap);
if (len == -1) {
(void) fprintf(stderr, "%s: cannot allocate memory!\n", Argv[0]);
exit(1);
}
return(len);
}
/*
* evasprintf() calls vasprintf() and exits with an error if vasprintf()
* returns -1 (out of memory).
*/
int
evasprintf(ret, format, args)
char **ret;
const char *format;
va_list args;
{
int len;
if ((len = vasprintf(ret, format, args)) == -1) {
(void) fprintf(stderr, "%s: cannot allocate memory!\n", Argv[0]);
exit(1);
}
return(len);
}
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