mirror of
https://github.com/sheumann/hush.git
synced 2024-10-31 04:04:31 +00:00
113 lines
2.4 KiB
C
113 lines
2.4 KiB
C
/* vi: set sw=4 ts=4: */
|
|
/*
|
|
* Utility routines.
|
|
*
|
|
* Copyright (C) tons of folks. Tracking down who wrote what
|
|
* isn't something I'm going to worry about... If you wrote something
|
|
* here, please feel free to acknowledge your work.
|
|
*
|
|
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*
|
|
* Based in part on code from sash, Copyright (c) 1999 by David I. Bell
|
|
* Permission has been granted to redistribute this code under the GPL.
|
|
*
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
#include "libbb.h"
|
|
|
|
|
|
#ifndef DMALLOC
|
|
extern void *xmalloc(size_t size)
|
|
{
|
|
void *ptr = malloc(size);
|
|
|
|
if (!ptr)
|
|
error_msg_and_die(memory_exhausted);
|
|
return ptr;
|
|
}
|
|
|
|
extern void *xrealloc(void *old, size_t size)
|
|
{
|
|
void *ptr;
|
|
|
|
/* SuS2 says "If size is 0 and ptr is not a null pointer, the
|
|
* object pointed to is freed." Do that here, in case realloc
|
|
* returns a NULL, since we don't want to choke in that case. */
|
|
if (size==0 && old) {
|
|
free(old);
|
|
return NULL;
|
|
}
|
|
|
|
ptr = realloc(old, size);
|
|
if (!ptr)
|
|
error_msg_and_die(memory_exhausted);
|
|
return ptr;
|
|
}
|
|
|
|
extern void *xcalloc(size_t nmemb, size_t size)
|
|
{
|
|
void *ptr = calloc(nmemb, size);
|
|
if (!ptr)
|
|
error_msg_and_die(memory_exhausted);
|
|
return ptr;
|
|
}
|
|
|
|
extern char * xstrdup (const char *s) {
|
|
char *t;
|
|
|
|
if (s == NULL)
|
|
return NULL;
|
|
|
|
t = strdup (s);
|
|
|
|
if (t == NULL)
|
|
error_msg_and_die(memory_exhausted);
|
|
|
|
return t;
|
|
}
|
|
#endif
|
|
|
|
extern char * xstrndup (const char *s, int n) {
|
|
char *t;
|
|
|
|
if (s == NULL)
|
|
error_msg_and_die("xstrndup bug");
|
|
|
|
t = xmalloc(++n);
|
|
|
|
return safe_strncpy(t,s,n);
|
|
}
|
|
|
|
FILE *xfopen(const char *path, const char *mode)
|
|
{
|
|
FILE *fp;
|
|
if ((fp = fopen(path, mode)) == NULL)
|
|
perror_msg_and_die("%s", path);
|
|
return fp;
|
|
}
|
|
|
|
/* END CODE */
|
|
/*
|
|
Local Variables:
|
|
c-file-style: "linux"
|
|
c-basic-offset: 4
|
|
tab-width: 4
|
|
End:
|
|
*/
|