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Annotation of src/usr.bin/ssh/xmalloc.c, Revision 1.6.2.2

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:  * Versions of malloc and friends that check their results, and never return
                      6:  * failure (they call fatal if they encounter an error).
1.6.2.2 ! jason       7:  *
        !             8:  * As far as I am concerned, the code I have written for this software
        !             9:  * can be used freely for any purpose.  Any derived versions of this
        !            10:  * software must be clearly marked as such, and if the derived work is
        !            11:  * incompatible with the protocol description in the RFC file, it must be
        !            12:  * called by a name other than "ssh" or "Secure Shell".
1.5       deraadt    13:  */
1.1       deraadt    14:
                     15: #include "includes.h"
1.6.2.2 ! jason      16: RCSID("$OpenBSD: xmalloc.c,v 1.8 2000/09/07 20:27:55 deraadt Exp $");
1.1       deraadt    17:
                     18: #include "ssh.h"
                     19:
1.4       markus     20: void *
                     21: xmalloc(size_t size)
1.1       deraadt    22: {
1.4       markus     23:        void *ptr = malloc(size);
                     24:        if (ptr == NULL)
                     25:                fatal("xmalloc: out of memory (allocating %d bytes)", (int) size);
                     26:        return ptr;
1.1       deraadt    27: }
                     28:
1.4       markus     29: void *
                     30: xrealloc(void *ptr, size_t new_size)
1.1       deraadt    31: {
1.4       markus     32:        void *new_ptr;
1.1       deraadt    33:
1.4       markus     34:        if (ptr == NULL)
                     35:                fatal("xrealloc: NULL pointer given as argument");
                     36:        new_ptr = realloc(ptr, new_size);
                     37:        if (new_ptr == NULL)
                     38:                fatal("xrealloc: out of memory (new_size %d bytes)", (int) new_size);
                     39:        return new_ptr;
1.1       deraadt    40: }
                     41:
1.6       markus     42: void
1.4       markus     43: xfree(void *ptr)
1.1       deraadt    44: {
1.4       markus     45:        if (ptr == NULL)
                     46:                fatal("xfree: NULL pointer given as argument");
                     47:        free(ptr);
1.1       deraadt    48: }
                     49:
1.4       markus     50: char *
                     51: xstrdup(const char *str)
1.1       deraadt    52: {
1.4       markus     53:        int len = strlen(str) + 1;
1.2       deraadt    54:
1.4       markus     55:        char *cp = xmalloc(len);
                     56:        strlcpy(cp, str, len);
                     57:        return cp;
1.1       deraadt    58: }