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Annotation of src/usr.bin/ssh/xmalloc.c, Revision 1.4

1.1       deraadt     1: /*
                      2:
                      3: xmalloc.c
                      4:
                      5: Author: Tatu Ylonen <ylo@cs.hut.fi>
                      6:
                      7: Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
                      8:                    All rights reserved
                      9:
                     10: Created: Mon Mar 20 21:23:10 1995 ylo
                     11:
                     12: Versions of malloc and friends that check their results, and never return
                     13: failure (they call fatal if they encounter an error).
                     14:
                     15: */
                     16:
                     17: #include "includes.h"
1.4     ! markus     18: RCSID("$Id: xmalloc.c,v 1.3 1999/09/30 04:30:03 deraadt Exp $");
1.1       deraadt    19:
                     20: #include "ssh.h"
                     21:
1.4     ! markus     22: void *
        !            23: xmalloc(size_t size)
1.1       deraadt    24: {
1.4     ! markus     25:        void *ptr = malloc(size);
        !            26:        if (ptr == NULL)
        !            27:                fatal("xmalloc: out of memory (allocating %d bytes)", (int) size);
        !            28:        return ptr;
1.1       deraadt    29: }
                     30:
1.4     ! markus     31: void *
        !            32: xrealloc(void *ptr, size_t new_size)
1.1       deraadt    33: {
1.4     ! markus     34:        void *new_ptr;
1.1       deraadt    35:
1.4     ! markus     36:        if (ptr == NULL)
        !            37:                fatal("xrealloc: NULL pointer given as argument");
        !            38:        new_ptr = realloc(ptr, new_size);
        !            39:        if (new_ptr == NULL)
        !            40:                fatal("xrealloc: out of memory (new_size %d bytes)", (int) new_size);
        !            41:        return new_ptr;
1.1       deraadt    42: }
                     43:
1.4     ! markus     44: void
        !            45: xfree(void *ptr)
1.1       deraadt    46: {
1.4     ! markus     47:        if (ptr == NULL)
        !            48:                fatal("xfree: NULL pointer given as argument");
        !            49:        free(ptr);
1.1       deraadt    50: }
                     51:
1.4     ! markus     52: char *
        !            53: xstrdup(const char *str)
1.1       deraadt    54: {
1.4     ! markus     55:        int len = strlen(str) + 1;
1.2       deraadt    56:
1.4     ! markus     57:        char *cp = xmalloc(len);
        !            58:        strlcpy(cp, str, len);
        !            59:        return cp;
1.1       deraadt    60: }