xref: /titanic_44/usr/src/lib/libbc/libc/gen/sys5/assert.c (revision 8eea8e29cc4374d1ee24c25a07f45af132db3499)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License, Version 1.0 only
6  * (the "License").  You may not use this file except in compliance
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or http://www.opensolaris.org/os/licensing.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 /*
23  * Copyright 1989 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 /*      Copyright (c) 1984 AT&T */
28 /*        All Rights Reserved   */
29 
30 #pragma ident	"%Z%%M%	%I%	%E% SMI"  /* from S5R2 1.2 */
31 
32 /*LINTLIBRARY*/
33 /*
34  *	called from "assert" macro; prints without printf or stdio.
35  */
36 
37 #define WRITE(s, n)	(void) write(2, (s), (n))
38 #define WRITESTR(s1, n, s2)	WRITE((s1), n), \
39 				WRITE((s2), (unsigned) strlen(s2))
40 
41 #define	LINESTR ", line NNNNN\n"
42 char	*malloc();
43 
44 _assert(assertion, filename, line_num)
45 char *assertion;
46 char *filename;
47 int line_num;
48 {
49 	static char *linestr;
50 	register char *p;
51 	register int div, digit;
52 
53 	if (!linestr) {
54 		linestr = malloc(strlen(LINESTR)+1);
55 		strcpy(linestr, LINESTR);
56 	}
57 	p = &linestr[7];
58 
59 	WRITESTR("Assertion failed: ", 18, assertion);
60 	WRITESTR(", file ", 7, filename);
61 	for (div = 10000; div != 0; line_num %= div, div /= 10)
62 		if ((digit = line_num/div) != 0 || p != &linestr[7] || div == 1)
63 			*p++ = digit + '0';
64 	*p++ = '\n';
65 	*p = '\0';
66 	WRITE(linestr, (unsigned) strlen(linestr));
67 	(void) abort();
68 }
69