1*86d7f5d3SJohn Marino /*
2*86d7f5d3SJohn Marino * Routines to report various classes of problems. Each report is decorated
3*86d7f5d3SJohn Marino * with the current context (file name and line number), if available.
4*86d7f5d3SJohn Marino *
5*86d7f5d3SJohn Marino * tcpd_warn() reports a problem and proceeds.
6*86d7f5d3SJohn Marino *
7*86d7f5d3SJohn Marino * tcpd_jump() reports a problem and jumps.
8*86d7f5d3SJohn Marino *
9*86d7f5d3SJohn Marino * Author: Wietse Venema, Eindhoven University of Technology, The Netherlands.
10*86d7f5d3SJohn Marino *
11*86d7f5d3SJohn Marino * @(#) diag.c 1.1 94/12/28 17:42:20
12*86d7f5d3SJohn Marino * $DragonFly: src/contrib/tcp_wrappers/diag.c,v 1.2 2005/09/15 04:33:04 sephe Exp $
13*86d7f5d3SJohn Marino */
14*86d7f5d3SJohn Marino
15*86d7f5d3SJohn Marino /* System libraries */
16*86d7f5d3SJohn Marino
17*86d7f5d3SJohn Marino #include <syslog.h>
18*86d7f5d3SJohn Marino #include <setjmp.h>
19*86d7f5d3SJohn Marino #include <stdarg.h>
20*86d7f5d3SJohn Marino
21*86d7f5d3SJohn Marino /* Local stuff */
22*86d7f5d3SJohn Marino
23*86d7f5d3SJohn Marino #include "tcpd.h"
24*86d7f5d3SJohn Marino
25*86d7f5d3SJohn Marino struct tcpd_context tcpd_context;
26*86d7f5d3SJohn Marino jmp_buf tcpd_buf;
27*86d7f5d3SJohn Marino
28*86d7f5d3SJohn Marino /* tcpd_diag - centralize error reporter */
29*86d7f5d3SJohn Marino
30*86d7f5d3SJohn Marino static void
tcpd_diag(int severity,const char * tag,const char * format,va_list ap)31*86d7f5d3SJohn Marino tcpd_diag(int severity, const char *tag, const char *format, va_list ap)
32*86d7f5d3SJohn Marino {
33*86d7f5d3SJohn Marino char fmt[BUFSIZ];
34*86d7f5d3SJohn Marino
35*86d7f5d3SJohn Marino if (tcpd_context.file)
36*86d7f5d3SJohn Marino sprintf(fmt, "%s: %s, line %d: %s",
37*86d7f5d3SJohn Marino tag, tcpd_context.file, tcpd_context.line, format);
38*86d7f5d3SJohn Marino else
39*86d7f5d3SJohn Marino sprintf(fmt, "%s: %s", tag, format);
40*86d7f5d3SJohn Marino vsyslog(severity, fmt, ap);
41*86d7f5d3SJohn Marino }
42*86d7f5d3SJohn Marino
43*86d7f5d3SJohn Marino /* tcpd_warn - report problem of some sort and proceed */
44*86d7f5d3SJohn Marino
45*86d7f5d3SJohn Marino void
tcpd_warn(const char * format,...)46*86d7f5d3SJohn Marino tcpd_warn(const char *format, ...)
47*86d7f5d3SJohn Marino {
48*86d7f5d3SJohn Marino va_list ap;
49*86d7f5d3SJohn Marino
50*86d7f5d3SJohn Marino va_start(ap, format);
51*86d7f5d3SJohn Marino tcpd_diag(LOG_ERR, "warning", format, ap);
52*86d7f5d3SJohn Marino va_end(ap);
53*86d7f5d3SJohn Marino }
54*86d7f5d3SJohn Marino
55*86d7f5d3SJohn Marino /* tcpd_jump - report serious problem and jump */
56*86d7f5d3SJohn Marino
57*86d7f5d3SJohn Marino void
tcpd_jump(const char * format,...)58*86d7f5d3SJohn Marino tcpd_jump(const char *format, ...)
59*86d7f5d3SJohn Marino {
60*86d7f5d3SJohn Marino va_list ap;
61*86d7f5d3SJohn Marino
62*86d7f5d3SJohn Marino va_start(ap, format);
63*86d7f5d3SJohn Marino tcpd_diag(LOG_ERR, "error", format, ap);
64*86d7f5d3SJohn Marino va_end(ap);
65*86d7f5d3SJohn Marino longjmp(tcpd_buf, AC_ERROR);
66*86d7f5d3SJohn Marino }
67