mandoc_aux.c

   1 /*      $Id: mandoc_aux.c,v 1.4 2014/08/10 23:54:41 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 "config.h"
  19
  20 #include <sys/types.h>
  21
  22 #include <stdarg.h>
  23 #include <stdlib.h>
  24 #include <stdio.h>
  25 #include <string.h>
  26
  27 #include "mandoc.h"
  28 #include "mandoc_aux.h"
  29
  30 int
  31 mandoc_asprintf(char **dest, const char *fmt, ...)
  32 {
  33         va_list  ap;
  34         int      ret;
  35
  36         va_start(ap, fmt);
  37         ret = vasprintf(dest, fmt, ap);
  38         va_end(ap);
  39
  40         if (-1 == ret) {
  41                 perror(NULL);
  42                 exit((int)MANDOCLEVEL_SYSERR);
  43         }
  44         return(ret);
  45 }
  46
  47 void *
  48 mandoc_calloc(size_t num, size_t size)
  49 {
  50         void    *ptr;
  51
  52         ptr = calloc(num, size);
  53         if (NULL == ptr) {
  54                 perror(NULL);
  55                 exit((int)MANDOCLEVEL_SYSERR);
  56         }
  57         return(ptr);
  58 }
  59
  60 void *
  61 mandoc_malloc(size_t size)
  62 {
  63         void    *ptr;
  64
  65         ptr = malloc(size);
  66         if (NULL == ptr) {
  67                 perror(NULL);
  68                 exit((int)MANDOCLEVEL_SYSERR);
  69         }
  70         return(ptr);
  71 }
  72
  73 void *
  74 mandoc_realloc(void *ptr, size_t size)
  75 {
  76
  77         ptr = realloc(ptr, size);
  78         if (NULL == ptr) {
  79                 perror(NULL);
  80                 exit((int)MANDOCLEVEL_SYSERR);
  81         }
  82         return(ptr);
  83 }
  84
  85 void *
  86 mandoc_reallocarray(void *ptr, size_t num, size_t size)
  87 {
  88
  89         ptr = reallocarray(ptr, num, size);
  90         if (NULL == ptr) {
  91                 perror(NULL);
  92                 exit((int)MANDOCLEVEL_SYSERR);
  93         }
  94         return(ptr);
  95 }
  96
  97 char *
  98 mandoc_strdup(const char *ptr)
  99 {
 100         char    *p;
 101
 102         p = strdup(ptr);
 103         if (NULL == p) {
 104                 perror(NULL);
 105                 exit((int)MANDOCLEVEL_SYSERR);
 106         }
 107         return(p);
 108 }
 109
 110 char *
 111 mandoc_strndup(const char *ptr, size_t sz)
 112 {
 113         char    *p;
 114
 115         p = mandoc_malloc(sz + 1);
 116         memcpy(p, ptr, sz);
 117         p[(int)sz] = '\0';
 118         return(p);
 119 }