1 /*
2 * Copyright 2001 Sun Microsystems, Inc. All rights reserved.
3 * Use is subject to license terms.
4 */
5 #pragma ident "%Z%%M% %I% %E% SMI"
6
7 /*
8 * Routines to report various classes of problems. Each report is decorated
9 * with the current context (file name and line number), if available.
10 *
11 * tcpd_warn() reports a problem and proceeds.
12 *
13 * tcpd_jump() reports a problem and jumps.
14 *
15 * Author: Wietse Venema, Eindhoven University of Technology, The Netherlands.
16 */
17
18 #ifndef lint
19 static char sccsid[] = "@(#) diag.c 1.1 94/12/28 17:42:20";
20 #endif
21
22 /* System libraries */
23
24 #include <syslog.h>
25 #include <stdio.h>
26 #include <setjmp.h>
27
28 /* Local stuff */
29
30 #include "tcpd.h"
31 #include "mystdarg.h"
32
33 struct tcpd_context tcpd_context;
34 jmp_buf tcpd_buf;
35
36 /* tcpd_diag - centralize error reporter */
37
tcpd_diag(severity,tag,format,ap)38 static void tcpd_diag(severity, tag, format, ap)
39 int severity;
40 char *tag;
41 char *format;
42 va_list ap;
43 {
44 char fmt[BUFSIZ];
45
46 if (tcpd_context.file)
47 sprintf(fmt, "%s: %s, line %d: %s",
48 tag, tcpd_context.file, tcpd_context.line, format);
49 else
50 sprintf(fmt, "%s: %s", tag, format);
51 vsyslog(severity, fmt, ap);
52 }
53
54 /* tcpd_warn - report problem of some sort and proceed */
55
VARARGS(tcpd_warn,char *,format)56 void VARARGS(tcpd_warn, char *, format)
57 {
58 va_list ap;
59
60 VASTART(ap, char *, format);
61 tcpd_diag(LOG_ERR, "warning", format, ap);
62 VAEND(ap);
63 }
64
65 /* tcpd_jump - report serious problem and jump */
66
VARARGS(tcpd_jump,char *,format)67 void VARARGS(tcpd_jump, char *, format)
68 {
69 va_list ap;
70
71 VASTART(ap, char *, format);
72 tcpd_diag(LOG_ERR, "error", format, ap);
73 VAEND(ap);
74 longjmp(tcpd_buf, AC_ERROR);
75 }
76