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"
31
32 /*LINTLIBRARY*/
33 /*
34 * called from "assert" macro; prints without printf or stdio.
35 */
36
37 #include <malloc.h>
38
39 #define WRITE(s, n) (void) write(2, (s), (n))
40 #define WRITESTR(s1, n, s2) WRITE((s1), n), \
41 WRITE((s2), (unsigned) strlen(s2))
42
43 #define LINESTR ", line NNNNN\n"
44
45 void
_assert(char * assertion,char * filename,int line_num)46 _assert(char *assertion, char *filename, int line_num)
47 {
48 static char *linestr;
49 char *p;
50 int div, digit;
51
52 if (!linestr) {
53 linestr = malloc(strlen(LINESTR)+1);
54 strcpy(linestr, LINESTR);
55 }
56 p = &linestr[7];
57
58 WRITESTR("Assertion failed: ", 18, assertion);
59 WRITESTR(", file ", 7, filename);
60 for (div = 10000; div != 0; line_num %= div, div /= 10)
61 if ((digit = line_num/div) != 0 || p != &linestr[7] || div == 1)
62 *p++ = digit + '0';
63 *p++ = '\n';
64 *p = '\0';
65 WRITE(linestr, (unsigned) strlen(linestr));
66 (void) abort();
67 }
68