mandoc_aux.c

   1 /*      $Id: mandoc_aux.c,v 1.3 2014/07/09 08:20:34 schwarze Exp $ */
   2 /*
   3  * Copyright (c) 2009, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
   4  * Copyright (c) 2014 Ingo Schwarze <schwarze@openbsd.org>
   5  *
   6  * Permission to use, copy, modify, and distribute this software for any
   7  * purpose with or without fee is hereby granted, provided that the above
   8  * copyright notice and this permission notice appear in all copies.
   9  *
  10  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
  11  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  12  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
  13  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  14  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  15  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  16  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  17  */
  18 #ifdef HAVE_CONFIG_H
  19 #include "config.h"
  20 #endif
  21
  22 #include <sys/types.h>
  23
  24 #include <stdarg.h>
  25 #include <stdlib.h>
  26 #include <stdio.h>
  27 #include <string.h>
  28
  29 #include "mandoc.h"
  30 #include "mandoc_aux.h"
  31
  32 int
  33 mandoc_asprintf(char **dest, const char *fmt, ...)
  34 {
  35         va_list  ap;
  36         int      ret;
  37
  38         va_start(ap, fmt);
  39         ret = vasprintf(dest, fmt, ap);
  40         va_end(ap);
  41
  42         if (-1 == ret) {
  43                 perror(NULL);
  44                 exit((int)MANDOCLEVEL_SYSERR);
  45         }
  46         return(ret);
  47 }
  48
  49 void *
  50 mandoc_calloc(size_t num, size_t size)
  51 {
  52         void    *ptr;
  53
  54         ptr = calloc(num, size);
  55         if (NULL == ptr) {
  56                 perror(NULL);
  57                 exit((int)MANDOCLEVEL_SYSERR);
  58         }
  59         return(ptr);
  60 }
  61
  62 void *
  63 mandoc_malloc(size_t size)
  64 {
  65         void    *ptr;
  66
  67         ptr = malloc(size);
  68         if (NULL == ptr) {
  69                 perror(NULL);
  70                 exit((int)MANDOCLEVEL_SYSERR);
  71         }
  72         return(ptr);
  73 }
  74
  75 void *
  76 mandoc_realloc(void *ptr, size_t size)
  77 {
  78
  79         ptr = realloc(ptr, size);
  80         if (NULL == ptr) {
  81                 perror(NULL);
  82                 exit((int)MANDOCLEVEL_SYSERR);
  83         }
  84         return(ptr);
  85 }
  86
  87 void *
  88 mandoc_reallocarray(void *ptr, size_t num, size_t size)
  89 {
  90
  91         ptr = reallocarray(ptr, num, size);
  92         if (NULL == ptr) {
  93                 perror(NULL);
  94                 exit((int)MANDOCLEVEL_SYSERR);
  95         }
  96         return(ptr);
  97 }
  98
  99 char *
 100 mandoc_strdup(const char *ptr)
 101 {
 102         char    *p;
 103
 104         p = strdup(ptr);
 105         if (NULL == p) {
 106                 perror(NULL);
 107                 exit((int)MANDOCLEVEL_SYSERR);
 108         }
 109         return(p);
 110 }
 111
 112 char *
 113 mandoc_strndup(const char *ptr, size_t sz)
 114 {
 115         char    *p;
 116
 117         p = mandoc_malloc(sz + 1);
 118         memcpy(p, ptr, sz);
 119         p[(int)sz] = '\0';
 120         return(p);
 121 }