2 * Copyright (c) 1992, 1993
3 * The Regents of the University of California. All rights reserved.
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6 * modification, are permitted provided that the following conditions
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9 * notice, this list of conditions and the following disclaimer.
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29 * @(#)assert.c 8.1 (Berkeley) 6/4/93
30 * $FreeBSD: src/lib/libc/gen/assert.c,v 1.8 2007/01/09 00:27:53 imp Exp $
33 #include "namespace.h"
34 #include <sys/syslog.h>
38 #include "un-namespace.h"
41 __assert(const char *func, const char *file, int line, const char *failedexpr)
45 "Assertion failed: (%s), file %s, line %d.\n", failedexpr,
49 "Assertion failed: (%s), function %s, file %s, line %d.\n",
50 failedexpr, func, file, line);
57 DIAGASSERT_ABORT = 1<<0,
58 DIAGASSERT_STDERR = 1<<1,
59 DIAGASSERT_SYSLOG = 1<<2
62 static int diagassert_flags = -1;
65 __diagassert(const char *file, int line, const char *function,
66 const char *failedexpr)
70 if (diagassert_flags == -1) {
73 diagassert_flags = DIAGASSERT_SYSLOG | DIAGASSERT_ABORT;
75 for (p = getenv("LIBC_DIAGASSERT"); p && *p; p++) {
78 diagassert_flags |= DIAGASSERT_ABORT;
81 diagassert_flags &= ~DIAGASSERT_ABORT;
84 diagassert_flags |= DIAGASSERT_STDERR;
87 diagassert_flags &= ~DIAGASSERT_STDERR;
90 diagassert_flags |= DIAGASSERT_SYSLOG;
93 diagassert_flags &= ~DIAGASSERT_SYSLOG;
99 snprintf(buf, sizeof(buf),
100 "assertion \"%s\" failed: file \"%s\", line %d, function \"%s\"",
101 failedexpr, file, line, function);
102 if (diagassert_flags & DIAGASSERT_STDERR)
103 fprintf(stderr, "%s: %s\n", _getprogname(), buf);
104 if (diagassert_flags & DIAGASSERT_SYSLOG)
105 syslog(LOG_DEBUG | LOG_USER, "%s", buf);
106 if (diagassert_flags & DIAGASSERT_ABORT)