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 13static 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 27struct tcpd_context tcpd_context; 28jmp_buf tcpd_buf; 29 30/* tcpd_diag - centralize error reporter */ 31 32static void tcpd_diag(severity, tag, format, ap) 33int severity; 34char *tag; 35char *format; 36va_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 50void VARARGS(tcpd_warn, char *, format) 51{ 52 va_list ap; 53 54 VASTART(ap, char *, format); 55 tcpd_diag(LOG_ERR, "warning", format, ap); 56 VAEND(ap); 57} 58 59/* tcpd_jump - report serious problem and jump */ 60 61void 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