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      1 /*	Id: mandoc_aux.c,v 1.11 2018/02/07 20:04:57 schwarze Exp  */
      2 /*
      3  * Copyright (c) 2009, 2011 Kristaps Dzonsons <kristaps (at) bsd.lv>
      4  * Copyright (c) 2014, 2015, 2017 Ingo Schwarze <schwarze (at) 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 #if HAVE_ERR
     23 #include <err.h>
     24 #endif
     25 #include <stdarg.h>
     26 #include <stdlib.h>
     27 #include <stdio.h>
     28 #include <string.h>
     29 
     30 #include "mandoc.h"
     31 #include "mandoc_aux.h"
     32 
     33 
     34 int
     35 mandoc_asprintf(char **dest, const char *fmt, ...)
     36 {
     37 	va_list	 ap;
     38 	int	 ret;
     39 
     40 	va_start(ap, fmt);
     41 	ret = vasprintf(dest, fmt, ap);
     42 	va_end(ap);
     43 
     44 	if (ret == -1)
     45 		err((int)MANDOCLEVEL_SYSERR, NULL);
     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 (ptr == NULL)
     56 		err((int)MANDOCLEVEL_SYSERR, NULL);
     57 	return ptr;
     58 }
     59 
     60 void *
     61 mandoc_malloc(size_t size)
     62 {
     63 	void	*ptr;
     64 
     65 	ptr = malloc(size);
     66 	if (ptr == NULL)
     67 		err((int)MANDOCLEVEL_SYSERR, NULL);
     68 	return ptr;
     69 }
     70 
     71 void *
     72 mandoc_realloc(void *ptr, size_t size)
     73 {
     74 	ptr = realloc(ptr, size);
     75 	if (ptr == NULL)
     76 		err((int)MANDOCLEVEL_SYSERR, NULL);
     77 	return ptr;
     78 }
     79 
     80 void *
     81 mandoc_reallocarray(void *ptr, size_t num, size_t size)
     82 {
     83 	ptr = reallocarray(ptr, num, size);
     84 	if (ptr == NULL)
     85 		err((int)MANDOCLEVEL_SYSERR, NULL);
     86 	return ptr;
     87 }
     88 
     89 void *
     90 mandoc_recallocarray(void *ptr, size_t oldnum, size_t num, size_t size)
     91 {
     92 	ptr = recallocarray(ptr, oldnum, num, size);
     93 	if (ptr == NULL)
     94 		err((int)MANDOCLEVEL_SYSERR, NULL);
     95 	return ptr;
     96 }
     97 
     98 char *
     99 mandoc_strdup(const char *ptr)
    100 {
    101 	char	*p;
    102 
    103 	p = strdup(ptr);
    104 	if (p == NULL)
    105 		err((int)MANDOCLEVEL_SYSERR, NULL);
    106 	return p;
    107 }
    108 
    109 char *
    110 mandoc_strndup(const char *ptr, size_t sz)
    111 {
    112 	char	*p;
    113 
    114 	p = strndup(ptr, sz);
    115 	if (p == NULL)
    116 		err((int)MANDOCLEVEL_SYSERR, NULL);
    117 	return p;
    118 }
    119