1 /* $NetBSD: diag.c,v 1.5 1999/07/03 12:30:40 simonb Exp $ */ 2 3 /* 4 * Routines to report various classes of problems. Each report is decorated 5 * with the current context (file name and line number), if available. 6 * 7 * tcpd_warn() reports a problem and proceeds. 8 * 9 * tcpd_jump() reports a problem and jumps. 10 * 11 * Author: Wietse Venema, Eindhoven University of Technology, The Netherlands. 12 */ 13 14 #include <sys/cdefs.h> 15 #ifndef lint 16 #if 0 17 static char sccsid[] = "@(#) diag.c 1.1 94/12/28 17:42:20"; 18 #else 19 __RCSID("$NetBSD: diag.c,v 1.5 1999/07/03 12:30:40 simonb Exp $"); 20 #endif 21 #endif 22 23 /* System libraries */ 24 25 #include <syslog.h> 26 #include <stdio.h> 27 #include <setjmp.h> 28 29 /* Local stuff */ 30 31 #include "tcpd.h" 32 #include "mystdarg.h" 33 34 struct tcpd_context tcpd_context; 35 jmp_buf tcpd_buf; 36 37 static void tcpd_diag __P((int, char *, char *, va_list)); 38 39 /* tcpd_diag - centralize error reporter */ 40 41 static void tcpd_diag(severity, tag, format, ap) 42 int severity; 43 char *tag; 44 char *format; 45 va_list ap; 46 { 47 char fmt[BUFSIZ]; 48 49 if (tcpd_context.file) 50 (void)snprintf(fmt, sizeof fmt, "%s: %s, line %d: %s", 51 tag, tcpd_context.file, tcpd_context.line, format); 52 else 53 (void)snprintf(fmt, sizeof fmt, "%s: %s", tag, format); 54 vsyslog(severity, fmt, ap); 55 } 56 57 /* tcpd_warn - report problem of some sort and proceed */ 58 59 void VARARGS(tcpd_warn, char *, format) 60 { 61 va_list ap; 62 63 VASTART(ap, char *, format); 64 tcpd_diag(LOG_ERR, "warning", format, ap); 65 VAEND(ap); 66 } 67 68 /* tcpd_jump - report serious problem and jump */ 69 70 void VARARGS(tcpd_jump, char *, format) 71 { 72 va_list ap; 73 74 VASTART(ap, char *, format); 75 tcpd_diag(LOG_ERR, "error", format, ap); 76 VAEND(ap); 77 longjmp(tcpd_buf, AC_ERROR); 78 } 79