openssh/xmalloc.c

57 lines
1.1 KiB
C

/*
xmalloc.c
Author: Tatu Ylonen <ylo@cs.hut.fi>
Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
All rights reserved
Created: Mon Mar 20 21:23:10 1995 ylo
Versions of malloc and friends that check their results, and never return
failure (they call fatal if they encounter an error).
*/
#include "includes.h"
RCSID("$Id: xmalloc.c,v 1.1 1999/10/27 03:42:46 damien Exp $");
#include "ssh.h"
void *xmalloc(size_t size)
{
void *ptr = malloc(size);
if (ptr == NULL)
fatal("xmalloc: out of memory (allocating %d bytes)", (int)size);
return ptr;
}
void *xrealloc(void *ptr, size_t new_size)
{
void *new_ptr;
if (ptr == NULL)
fatal("xrealloc: NULL pointer given as argument");
new_ptr = realloc(ptr, new_size);
if (new_ptr == NULL)
fatal("xrealloc: out of memory (new_size %d bytes)", (int)new_size);
return new_ptr;
}
void xfree(void *ptr)
{
if (ptr == NULL)
fatal("xfree: NULL pointer given as argument");
free(ptr);
}
char *xstrdup(const char *str)
{
int len = strlen(str) + 1;
char *cp = xmalloc(len);
strlcpy(cp, str, len);
return cp;
}