mandoc_aux.c

   1 /*      $Id: mandoc_aux.c,v 1.2 2014/04/23 21:06:41 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 #include <sys/types.h>
  19
  20 #include <stdarg.h>
  21 #include <stdlib.h>
  22 #include <stdio.h>
  23 #include <string.h>
  24
  25 #include "mandoc.h"
  26 #include "mandoc_aux.h"
  27
  28 int
  29 mandoc_asprintf(char **dest, const char *fmt, ...)
  30 {
  31         va_list  ap;
  32         int      ret;
  33
  34         va_start(ap, fmt);
  35         ret = vasprintf(dest, fmt, ap);
  36         va_end(ap);
  37
  38         if (-1 == ret) {
  39                 perror(NULL);
  40                 exit((int)MANDOCLEVEL_SYSERR);
  41         }
  42         return(ret);
  43 }
  44
  45 void *
  46 mandoc_calloc(size_t num, size_t size)
  47 {
  48         void    *ptr;
  49
  50         ptr = calloc(num, size);
  51         if (NULL == ptr) {
  52                 perror(NULL);
  53                 exit((int)MANDOCLEVEL_SYSERR);
  54         }
  55         return(ptr);
  56 }
  57
  58 void *
  59 mandoc_malloc(size_t size)
  60 {
  61         void    *ptr;
  62
  63         ptr = malloc(size);
  64         if (NULL == ptr) {
  65                 perror(NULL);
  66                 exit((int)MANDOCLEVEL_SYSERR);
  67         }
  68         return(ptr);
  69 }
  70
  71 void *
  72 mandoc_realloc(void *ptr, size_t size)
  73 {
  74
  75         ptr = realloc(ptr, size);
  76         if (NULL == ptr) {
  77                 perror(NULL);
  78                 exit((int)MANDOCLEVEL_SYSERR);
  79         }
  80         return(ptr);
  81 }
  82
  83 void *
  84 mandoc_reallocarray(void *ptr, size_t num, size_t size)
  85 {
  86
  87         ptr = reallocarray(ptr, num, size);
  88         if (NULL == ptr) {
  89                 perror(NULL);
  90                 exit((int)MANDOCLEVEL_SYSERR);
  91         }
  92         return(ptr);
  93 }
  94
  95 char *
  96 mandoc_strdup(const char *ptr)
  97 {
  98         char    *p;
  99
 100         p = strdup(ptr);
 101         if (NULL == p) {
 102                 perror(NULL);
 103                 exit((int)MANDOCLEVEL_SYSERR);
 104         }
 105         return(p);
 106 }
 107
 108 char *
 109 mandoc_strndup(const char *ptr, size_t sz)
 110 {
 111         char    *p;
 112
 113         p = mandoc_malloc(sz + 1);
 114         memcpy(p, ptr, sz);
 115         p[(int)sz] = '\0';
 116         return(p);
 117 }