usr.sbin/sup/source/log.c

   1 /*      $NetBSD: log.c,v 1.9 2007/12/20 20:17:52 christos Exp $ */
   2
   3 /*
   4  * Copyright (c) 1992 Carnegie Mellon University
   5  * All Rights Reserved.
   6  *
   7  * Permission to use, copy, modify and distribute this software and its
   8  * documentation is hereby granted, provided that both the copyright
   9  * notice and this permission notice appear in all copies of the
  10  * software, derivative works or modified versions, and any portions
  11  * thereof, and that both notices appear in supporting documentation.
  12  *
  13  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
  14  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
  15  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
  16  *
  17  * Carnegie Mellon requests users of this software to return to
  18  *
  19  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
  20  *  School of Computer Science
  21  *  Carnegie Mellon University
  22  *  Pittsburgh PA 15213-3890
  23  *
  24  * any improvements or extensions that they make and grant Carnegie Mellon
  25  * the rights to redistribute these changes.
  26  */
  27 /*
  28  * Logging support for SUP
  29  **********************************************************************
  30  * HISTORY
  31  * Revision 1.5  92/08/11  12:03:43  mrt
  32  *      Brad's delinting and variable argument list usage
  33  *      changes. Added copyright.
  34  *
  35  * Revision 1.3  89/08/15  15:30:37  bww
  36  *      Updated to use v*printf() in place of _doprnt().
  37  *      From "[89/04/19            mja]" at CMU.
  38  *      [89/08/15            bww]
  39  *
  40  * 27-Dec-87  Glenn Marcy (gm0w) at Carnegie-Mellon University
  41  *      Added check to allow logopen() to be called multiple times.
  42  *
  43  * 20-May-87  Glenn Marcy (gm0w) at Carnegie-Mellon University
  44  *      Created.
  45  *
  46  **********************************************************************
  47  */
  48
  49 #include <stdio.h>
  50 #include <sys/syslog.h>
  51 #include "supcdefs.h"
  52 #include "supextern.h"
  53 #include "c.h"
  54
  55 static int opened = 0;
  56
  57 void
  58 logopen(char *program)
  59 {
  60         if (opened)
  61                 return;
  62         openlog(program, LOG_PID, LOG_DAEMON);
  63         opened++;
  64 }
  65
  66 void
  67 logquit(int retval, const char *fmt, ...)
  68 {
  69         char buf[STRINGLENGTH];
  70         va_list ap;
  71
  72         va_start(ap, fmt);
  73         vsnprintf(buf, sizeof(buf), fmt, ap);
  74         va_end(ap);
  75         if (opened) {
  76                 syslog(LOG_ERR, "%s", buf);
  77                 closelog();
  78                 exit(retval);
  79         }
  80         quit(retval, "SUP: %s\n", buf);
  81 }
  82
  83 void
  84 logerr(const char *fmt, ...)
  85 {
  86         char buf[STRINGLENGTH];
  87         va_list ap;
  88
  89         va_start(ap, fmt);
  90         vsnprintf(buf, sizeof(buf), fmt, ap);
  91         va_end(ap);
  92         if (opened) {
  93                 syslog(LOG_ERR, "%s", buf);
  94                 return;
  95         }
  96         fprintf(stderr, "SUP: %s\n", buf);
  97         (void) fflush(stderr);
  98 }
  99
 100 void
 101 loginfo(const char *fmt, ...)
 102 {
 103         char buf[STRINGLENGTH];
 104         va_list ap;
 105
 106         va_start(ap, fmt);
 107         vsnprintf(buf, sizeof(buf), fmt, ap);
 108         va_end(ap);
 109         if (opened) {
 110                 syslog(LOG_INFO, "%s", buf);
 111                 return;
 112         }
 113         printf("%s\n", buf);
 114         (void) fflush(stdout);
 115 }
 116 #ifdef LIBWRAP
 117 #include <tcpd.h>
 118 #ifndef LIBWRAP_ALLOW_FACILITY
 119 #define LIBWRAP_ALLOW_FACILITY LOG_AUTH
 120 #endif
 121 #ifndef LIBWRAP_ALLOW_SEVERITY
 122 #define LIBWRAP_ALLOW_SEVERITY LOG_INFO
 123 #endif
 124 #ifndef LIBWRAP_DENY_FACILITY
 125 #define LIBWRAP_DENY_FACILITY LOG_AUTH
 126 #endif
 127 #ifndef LIBWRAP_DENY_SEVERITY
 128 #define LIBWRAP_DENY_SEVERITY LOG_WARNING
 129 #endif
 130 int allow_severity = LIBWRAP_ALLOW_FACILITY | LIBWRAP_ALLOW_SEVERITY;
 131 int deny_severity = LIBWRAP_DENY_FACILITY | LIBWRAP_DENY_SEVERITY;
 132
 133 void
 134 logdeny(const char *fmt, ...)
 135 {
 136         char buf[STRINGLENGTH];
 137         va_list ap;
 138
 139         va_start(ap, fmt);
 140         vsnprintf(buf, sizeof(buf), fmt, ap);
 141         va_end(ap);
 142         if (opened) {
 143                 syslog(deny_severity, "%s", buf);
 144                 return;
 145         }
 146         printf("%s\n", buf);
 147         (void) fflush(stdout);
 148 }
 149
 150 void
 151 logallow(const char *fmt, ...)
 152 {
 153         char buf[STRINGLENGTH];
 154         va_list ap;
 155
 156         va_start(ap, fmt);
 157         vsnprintf(buf, sizeof(buf), fmt, ap);
 158         va_end(ap);
 159         if (opened) {
 160                 syslog(allow_severity, "%s", buf);
 161                 return;
 162         }
 163         printf("%s\n", buf);
 164         (void) fflush(stdout);
 165 }
 166 #endif                          /* LIBWRAP */