1 /* 2 * Author: Tatu Ylonen <ylo@cs.hut.fi> 3 * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland 4 * All rights reserved 5 * Created: Mon Mar 20 21:23:10 1995 ylo 6 * Versions of malloc and friends that check their results, and never return 7 * failure (they call fatal if they encounter an error). 8 */ 9 10 #include "includes.h" 11 RCSID("$Id: xmalloc.c,v 1.5 1999/11/24 00:26:04 deraadt Exp $"); 12 13 #include "ssh.h" 14 15 void * 16 xmalloc(size_t size) 17 { 18 void *ptr = malloc(size); 19 if (ptr == NULL) 20 fatal("xmalloc: out of memory (allocating %d bytes)", (int) size); 21 return ptr; 22 } 23 24 void * 25 xrealloc(void *ptr, size_t new_size) 26 { 27 void *new_ptr; 28 29 if (ptr == NULL) 30 fatal("xrealloc: NULL pointer given as argument"); 31 new_ptr = realloc(ptr, new_size); 32 if (new_ptr == NULL) 33 fatal("xrealloc: out of memory (new_size %d bytes)", (int) new_size); 34 return new_ptr; 35 } 36 37 void 38 xfree(void *ptr) 39 { 40 if (ptr == NULL) 41 fatal("xfree: NULL pointer given as argument"); 42 free(ptr); 43 } 44 45 char * 46 xstrdup(const char *str) 47 { 48 int len = strlen(str) + 1; 49 50 char *cp = xmalloc(len); 51 strlcpy(cp, str, len); 52 return cp; 53 } 54