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 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 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 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