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Annotation of src/usr.bin/ssh/xmalloc.c, Revision 1.7

1.1       deraadt     1: /*
1.5       deraadt     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:  */
1.1       deraadt     9:
                     10: #include "includes.h"
1.7     ! markus     11: RCSID("$OpenBSD: xmalloc.c,v 1.6 2000/04/14 10:30:34 markus Exp $");
1.1       deraadt    12:
                     13: #include "ssh.h"
                     14:
1.4       markus     15: void *
                     16: xmalloc(size_t size)
1.1       deraadt    17: {
1.4       markus     18:        void *ptr = malloc(size);
                     19:        if (ptr == NULL)
                     20:                fatal("xmalloc: out of memory (allocating %d bytes)", (int) size);
                     21:        return ptr;
1.1       deraadt    22: }
                     23:
1.4       markus     24: void *
                     25: xrealloc(void *ptr, size_t new_size)
1.1       deraadt    26: {
1.4       markus     27:        void *new_ptr;
1.1       deraadt    28:
1.4       markus     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;
1.1       deraadt    35: }
                     36:
1.6       markus     37: void
1.4       markus     38: xfree(void *ptr)
1.1       deraadt    39: {
1.4       markus     40:        if (ptr == NULL)
                     41:                fatal("xfree: NULL pointer given as argument");
                     42:        free(ptr);
1.1       deraadt    43: }
                     44:
1.4       markus     45: char *
                     46: xstrdup(const char *str)
1.1       deraadt    47: {
1.4       markus     48:        int len = strlen(str) + 1;
1.2       deraadt    49:
1.4       markus     50:        char *cp = xmalloc(len);
                     51:        strlcpy(cp, str, len);
                     52:        return cp;
1.1       deraadt    53: }