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Annotation of src/usr.bin/cvs/xmalloc.c, Revision 1.5

1.5     ! xsa         1: /*     $OpenBSD: xmalloc.c,v 1.4 2005/12/30 17:51:01 reyk Exp $ */
1.1       joris       2: /*
                      3:  * Author: Tatu Ylonen <ylo@cs.hut.fi>
                      4:  * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
                      5:  *                    All rights reserved
                      6:  * Versions of xmalloc and friends that check their results, and never return
                      7:  * failure (they call fatal if they encounter an error).
                      8:  *
                      9:  * As far as I am concerned, the code I have written for this software
                     10:  * can be used freely for any purpose.  Any derived versions of this
                     11:  * software must be clearly marked as such, and if the derived work is
                     12:  * incompatible with the protocol description in the RFC file, it must be
                     13:  * called by a name other than "ssh" or "Secure Shell".
                     14:  */
                     15:
1.5     ! xsa        16: #include "includes.h"
1.1       joris      17:
1.3       xsa        18: #include "xmalloc.h"
                     19: #include "log.h"
1.1       joris      20:
                     21: void *
                     22: xmalloc(size_t size)
                     23: {
                     24:        void *ptr;
                     25:
                     26:        if (size == 0)
                     27:                fatal("xmalloc: zero size");
                     28:        ptr = malloc(size);
                     29:        if (ptr == NULL)
1.4       reyk       30:                fatal("xmalloc: out of memory (allocating %lu bytes)",
                     31:                    (u_long) size);
1.1       joris      32:        return ptr;
                     33: }
                     34:
                     35: void *
                     36: xrealloc(void *ptr, size_t new_size)
                     37: {
                     38:        void *new_ptr;
                     39:
                     40:        if (new_size == 0)
                     41:                fatal("xrealloc: zero size");
                     42:        if (ptr == NULL)
                     43:                new_ptr = xmalloc(new_size);
                     44:        else
                     45:                new_ptr = realloc(ptr, new_size);
                     46:        if (new_ptr == NULL)
1.4       reyk       47:                fatal("xrealloc: out of memory (new_size %lu bytes)",
                     48:                    (u_long) new_size);
1.1       joris      49:        return new_ptr;
                     50: }
                     51:
                     52: void
                     53: xfree(void *ptr)
                     54: {
                     55:        if (ptr == NULL)
                     56:                fatal("xfree: NULL pointer given as argument");
                     57:        free(ptr);
                     58: }
                     59:
                     60: char *
                     61: xstrdup(const char *str)
                     62: {
                     63:        size_t len;
                     64:        char *cp;
                     65:
                     66:        len = strlen(str) + 1;
                     67:        cp = xmalloc(len);
                     68:        strlcpy(cp, str, len);
                     69:        return cp;
                     70: }