159 lines
3.8 KiB
C
159 lines
3.8 KiB
C
/* $NetBSD: efun.c,v 1.6 2008/04/28 20:23:02 martin Exp $ */
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/*-
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* Copyright (c) 2006 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Christos Zoulas.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#if HAVE_NBTOOL_CONFIG_H
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#include "nbtool_config.h"
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#endif
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#include <sys/cdefs.h>
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#ifdef __RCSID
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__RCSID("$NetBSD: efun.c,v 1.6 2008/04/28 20:23:02 martin Exp $");
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#endif
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#include <err.h>
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#include <errno.h>
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#include <string.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <stdarg.h>
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#include <util.h>
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static void (*efunc)(int, const char *, ...) = err;
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void (*
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esetfunc(void (*ef)(int, const char *, ...)))(int, const char *, ...)
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{
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void (*of)(int, const char *, ...) = efunc;
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efunc = ef == NULL ? (void (*)(int, const char *, ...))exit : ef;
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return of;
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}
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size_t
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estrlcpy(char *dst, const char *src, size_t len)
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{
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size_t rv;
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if ((rv = strlcpy(dst, src, len)) >= len) {
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errno = ENAMETOOLONG;
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(*efunc)(1,
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"Cannot copy string; %zu chars needed %zu provided",
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rv, len);
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}
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return rv;
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}
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size_t
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estrlcat(char *dst, const char *src, size_t len)
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{
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size_t rv;
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if ((rv = strlcat(dst, src, len)) >= len) {
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errno = ENAMETOOLONG;
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(*efunc)(1,
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"Cannot append to string; %zu chars needed %zu provided",
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rv, len);
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}
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return rv;
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}
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char *
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estrdup(const char *s)
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{
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char *d = strdup(s);
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if (d == NULL)
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(*efunc)(1, "Cannot copy string");
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return d;
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}
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char *
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estrndup(const char *s, size_t len)
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{
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char *d = strndup(s, len);
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if (d == NULL)
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(*efunc)(1, "Cannot copy string");
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return d;
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}
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void *
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emalloc(size_t n)
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{
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void *p = malloc(n);
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if (p == NULL)
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(*efunc)(1, "Cannot allocate %zu bytes", n);
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return p;
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}
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void *
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ecalloc(size_t n, size_t s)
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{
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void *p = calloc(n, s);
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if (p == NULL)
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(*efunc)(1, "Cannot allocate %zu bytes", n);
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return p;
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}
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void *
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erealloc(void *p, size_t n)
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{
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void *q = realloc(p, n);
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if (q == NULL)
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(*efunc)(1, "Cannot re-allocate %zu bytes", n);
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return q;
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}
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FILE *
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efopen(const char *p, const char *m)
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{
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FILE *fp = fopen(p, m);
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if (fp == NULL)
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(*efunc)(1, "Cannot open `%s'", p);
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return fp;
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}
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int
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easprintf(char ** __restrict ret, const char * __restrict format, ...)
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{
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int rv;
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va_list ap;
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va_start(ap, format);
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if ((rv = vasprintf(ret, format, ap)) == -1)
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(*efunc)(1, "Cannot format string");
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va_end(ap);
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return rv;
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}
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int
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evasprintf(char ** __restrict ret, const char * __restrict format, va_list ap)
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{
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int rv;
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if ((rv = vasprintf(ret, format, ap)) == -1)
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(*efunc)(1, "Cannot format string");
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return rv;
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}
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