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/* vi: set expandtab sw=4 sts=4: */
/*
* Utility routines.
*
* Copyright (C) 1999,2000,2001 by Erik Andersen <andersee@debian.org>
* SPDX-License-Identifier: GPL-2.0-or-later
*
* 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
*/
#include "config.h"
#include <libgen.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include "opkg_message.h"
#include "xfuncs.h"
extern void *xmalloc(size_t size)
{
void *ptr = malloc(size);
if (ptr == NULL && size != 0) {
opkg_perror(ERROR, "malloc");
exit(EXIT_FAILURE);
}
return ptr;
}
extern void *xrealloc(void *ptr, size_t size)
{
ptr = realloc(ptr, size);
if (ptr == NULL && size != 0) {
opkg_perror(ERROR, "realloc");
exit(EXIT_FAILURE);
}
return ptr;
}
extern void *xcalloc(size_t nmemb, size_t size)
{
void *ptr = calloc(nmemb, size);
if (ptr == NULL && nmemb != 0 && size != 0) {
opkg_perror(ERROR, "calloc");
exit(EXIT_FAILURE);
}
return ptr;
}
extern char *xstrdup(const char *s)
{
char *t;
if (s == NULL)
return NULL;
t = strdup(s);
if (t == NULL) {
opkg_perror(ERROR, "strdup");
exit(EXIT_FAILURE);
}
return t;
}
extern char *xstrndup(const char *s, int n)
{
char *t;
if (s == NULL)
return NULL;
t = strndup(s, n);
if (t == NULL) {
opkg_perror(ERROR, "strdup");
exit(EXIT_FAILURE);
}
return t;
}
/* Sane dirname. */
extern char *xdirname(const char *path)
{
char *pathcopy, *parent, *tmp;
/* dirname is unsafe, it may both modify the memory of the path argument
* and may return a pointer to static memory, which can then be modified
* by consequtive calls to dirname.
*/
pathcopy = xstrdup(path);
tmp = dirname(pathcopy);
parent = xstrdup(tmp);
free(pathcopy);
return parent;
}
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