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 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 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 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