mandoc_aux.c

   1 /*      $Id: mandoc_aux.c,v 1.6 2015/10/11 21:12:54 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 <err.h>
  23 #include <stdarg.h>
  24 #include <stdlib.h>
  25 #include <stdio.h>
  26 #include <string.h>
  27
  28 #include "mandoc.h"
  29 #include "mandoc_aux.h"
  30
  31 #if !HAVE_PROGNAME
  32 const char *mandoc_progname;
  33 #endif
  34
  35 int
  36 mandoc_asprintf(char **dest, const char *fmt, ...)
  37 {
  38         va_list  ap;
  39         int      ret;
  40
  41         va_start(ap, fmt);
  42         ret = vasprintf(dest, fmt, ap);
  43         va_end(ap);
  44
  45         if (ret == -1)
  46                 err((int)MANDOCLEVEL_SYSERR, NULL);
  47         return ret;
  48 }
  49
  50 void *
  51 mandoc_calloc(size_t num, size_t size)
  52 {
  53         void    *ptr;
  54
  55         ptr = calloc(num, size);
  56         if (ptr == NULL)
  57                 err((int)MANDOCLEVEL_SYSERR, NULL);
  58         return ptr;
  59 }
  60
  61 void *
  62 mandoc_malloc(size_t size)
  63 {
  64         void    *ptr;
  65
  66         ptr = malloc(size);
  67         if (ptr == NULL)
  68                 err((int)MANDOCLEVEL_SYSERR, NULL);
  69         return ptr;
  70 }
  71
  72 void *
  73 mandoc_realloc(void *ptr, size_t size)
  74 {
  75
  76         ptr = realloc(ptr, size);
  77         if (ptr == NULL)
  78                 err((int)MANDOCLEVEL_SYSERR, NULL);
  79         return ptr;
  80 }
  81
  82 void *
  83 mandoc_reallocarray(void *ptr, size_t num, size_t size)
  84 {
  85
  86         ptr = reallocarray(ptr, num, size);
  87         if (ptr == NULL)
  88                 err((int)MANDOCLEVEL_SYSERR, NULL);
  89         return ptr;
  90 }
  91
  92 char *
  93 mandoc_strdup(const char *ptr)
  94 {
  95         char    *p;
  96
  97         p = strdup(ptr);
  98         if (ptr == NULL)
  99                 err((int)MANDOCLEVEL_SYSERR, NULL);
 100         return p;
 101 }
 102
 103 char *
 104 mandoc_strndup(const char *ptr, size_t sz)
 105 {
 106         char    *p;
 107
 108         p = mandoc_malloc(sz + 1);
 109         memcpy(p, ptr, sz);
 110         p[(int)sz] = '\0';
 111         return p;
 112 }