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/* $NetBSD: efun.c,v 1.10 2015/07/26 02:20:30 kamil Exp $ */
/* $FreeBSD$ */
/*-
* Copyright (c) 2006 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Christos Zoulas.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#if HAVE_NBTOOL_CONFIG_H
#include "nbtool_config.h"
#endif
#include <sys/cdefs.h>
#ifdef __RCSID
__RCSID("$NetBSD: efun.c,v 1.10 2015/07/26 02:20:30 kamil Exp $");
#endif
#include <err.h>
#include <errno.h>
#include <inttypes.h>
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include <stdarg.h>
#include <util.h>
static void (*efunc)(int, const char *, ...) = err;
void (*
esetfunc(void (*ef)(int, const char *, ...)))(int, const char *, ...)
{
void (*of)(int, const char *, ...) = efunc;
efunc = ef == NULL ? (void (*)(int, const char *, ...))exit : ef;
return of;
}
size_t
estrlcpy(char *dst, const char *src, size_t len)
{
size_t rv;
if ((rv = strlcpy(dst, src, len)) >= len) {
errno = ENAMETOOLONG;
(*efunc)(1,
"Cannot copy string; %zu chars needed %zu provided",
rv, len);
}
return rv;
}
size_t
estrlcat(char *dst, const char *src, size_t len)
{
size_t rv;
if ((rv = strlcat(dst, src, len)) >= len) {
errno = ENAMETOOLONG;
(*efunc)(1,
"Cannot append to string; %zu chars needed %zu provided",
rv, len);
}
return rv;
}
char *
estrdup(const char *s)
{
char *d = strdup(s);
if (d == NULL)
(*efunc)(1, "Cannot copy string");
return d;
}
char *
estrndup(const char *s, size_t len)
{
char *d = strndup(s, len);
if (d == NULL)
(*efunc)(1, "Cannot copy string");
return d;
}
void *
emalloc(size_t n)
{
void *p = malloc(n);
if (p == NULL && n != 0)
(*efunc)(1, "Cannot allocate %zu bytes", n);
return p;
}
void *
ecalloc(size_t n, size_t s)
{
void *p = calloc(n, s);
if (p == NULL && n != 0 && s != 0)
(*efunc)(1, "Cannot allocate %zu blocks of size %zu", n, s);
return p;
}
void *
erealloc(void *p, size_t n)
{
void *q = realloc(p, n);
if (q == NULL && n != 0)
(*efunc)(1, "Cannot re-allocate %zu bytes", n);
return q;
}
FILE *
efopen(const char *p, const char *m)
{
FILE *fp = fopen(p, m);
if (fp == NULL)
(*efunc)(1, "Cannot open `%s'", p);
return fp;
}
int
easprintf(char ** __restrict ret, const char * __restrict format, ...)
{
int rv;
va_list ap;
va_start(ap, format);
if ((rv = vasprintf(ret, format, ap)) == -1)
(*efunc)(1, "Cannot format string");
va_end(ap);
return rv;
}
int
evasprintf(char ** __restrict ret, const char * __restrict format, va_list ap)
{
int rv;
if ((rv = vasprintf(ret, format, ap)) == -1)
(*efunc)(1, "Cannot format string");
return rv;
}
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