assert.c revision 5d54f3d8999eac1762fe0a8c7177d20f1f201fae
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 1989 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/* Copyright (c) 1984 AT&T */
/* All Rights Reserved */
#pragma ident "%Z%%M% %I% %E% SMI"
/*LINTLIBRARY*/
/*
* called from "assert" macro; prints without printf or stdio.
*/
#include <malloc.h>
#define WRITE(s, n) (void) write(2, (s), (n))
#define WRITESTR(s1, n, s2) WRITE((s1), n), \
WRITE((s2), (unsigned) strlen(s2))
#define LINESTR ", line NNNNN\n"
void
_assert(char *assertion, char *filename, int line_num)
{
static char *linestr;
char *p;
int div, digit;
if (!linestr) {
linestr = malloc(strlen(LINESTR)+1);
strcpy(linestr, LINESTR);
}
p = &linestr[7];
WRITESTR("Assertion failed: ", 18, assertion);
WRITESTR(", file ", 7, filename);
for (div = 10000; div != 0; line_num %= div, div /= 10)
if ((digit = line_num/div) != 0 || p != &linestr[7] || div == 1)
*p++ = digit + '0';
*p++ = '\n';
*p = '\0';
WRITE(linestr, (unsigned) strlen(linestr));
(void) abort();
}