df9489689d
These are error-checked versions of memory allocation routines used by NetBSD code, and are being added to facilitate updates to makefs. Reviewed by: ngie Differential Revision: https://reviews.freebsd.org/D10291
161 lines
3.9 KiB
C
161 lines
3.9 KiB
C
/* $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;
|
|
}
|