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