xref: /onnv-gate/usr/src/lib/libbc/libc/gen/sys5/assert.c (revision 722:636b850d4ee9)
10Sstevel@tonic-gate /*
20Sstevel@tonic-gate  * CDDL HEADER START
30Sstevel@tonic-gate  *
40Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
50Sstevel@tonic-gate  * Common Development and Distribution License, Version 1.0 only
60Sstevel@tonic-gate  * (the "License").  You may not use this file except in compliance
70Sstevel@tonic-gate  * with the License.
80Sstevel@tonic-gate  *
90Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
100Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
110Sstevel@tonic-gate  * See the License for the specific language governing permissions
120Sstevel@tonic-gate  * and limitations under the License.
130Sstevel@tonic-gate  *
140Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
150Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
160Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
170Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
180Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
190Sstevel@tonic-gate  *
200Sstevel@tonic-gate  * CDDL HEADER END
210Sstevel@tonic-gate  */
220Sstevel@tonic-gate /*
230Sstevel@tonic-gate  * Copyright 1989 Sun Microsystems, Inc.  All rights reserved.
240Sstevel@tonic-gate  * Use is subject to license terms.
250Sstevel@tonic-gate  */
260Sstevel@tonic-gate 
270Sstevel@tonic-gate /*      Copyright (c) 1984 AT&T */
280Sstevel@tonic-gate /*        All Rights Reserved   */
290Sstevel@tonic-gate 
30*722Smuffin #pragma ident	"%Z%%M%	%I%	%E% SMI"
310Sstevel@tonic-gate 
320Sstevel@tonic-gate /*LINTLIBRARY*/
330Sstevel@tonic-gate /*
340Sstevel@tonic-gate  *	called from "assert" macro; prints without printf or stdio.
350Sstevel@tonic-gate  */
360Sstevel@tonic-gate 
37*722Smuffin #include <malloc.h>
38*722Smuffin 
390Sstevel@tonic-gate #define WRITE(s, n)	(void) write(2, (s), (n))
400Sstevel@tonic-gate #define WRITESTR(s1, n, s2)	WRITE((s1), n), \
410Sstevel@tonic-gate 				WRITE((s2), (unsigned) strlen(s2))
420Sstevel@tonic-gate 
430Sstevel@tonic-gate #define	LINESTR ", line NNNNN\n"
440Sstevel@tonic-gate 
45*722Smuffin void
_assert(char * assertion,char * filename,int line_num)46*722Smuffin _assert(char *assertion, char *filename, int line_num)
470Sstevel@tonic-gate {
480Sstevel@tonic-gate 	static char *linestr;
49*722Smuffin 	char *p;
50*722Smuffin 	int div, digit;
510Sstevel@tonic-gate 
520Sstevel@tonic-gate 	if (!linestr) {
530Sstevel@tonic-gate 		linestr = malloc(strlen(LINESTR)+1);
540Sstevel@tonic-gate 		strcpy(linestr, LINESTR);
550Sstevel@tonic-gate 	}
560Sstevel@tonic-gate 	p = &linestr[7];
570Sstevel@tonic-gate 
580Sstevel@tonic-gate 	WRITESTR("Assertion failed: ", 18, assertion);
590Sstevel@tonic-gate 	WRITESTR(", file ", 7, filename);
600Sstevel@tonic-gate 	for (div = 10000; div != 0; line_num %= div, div /= 10)
610Sstevel@tonic-gate 		if ((digit = line_num/div) != 0 || p != &linestr[7] || div == 1)
620Sstevel@tonic-gate 			*p++ = digit + '0';
630Sstevel@tonic-gate 	*p++ = '\n';
640Sstevel@tonic-gate 	*p = '\0';
650Sstevel@tonic-gate 	WRITE(linestr, (unsigned) strlen(linestr));
660Sstevel@tonic-gate 	(void) abort();
670Sstevel@tonic-gate }
68