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