1 /*
2  * ngIRCd -- The Next Generation IRC Daemon
3  * Copyright (c)2001,2002 by Alexander Barton (alex@barton.de)
4  *
5  * Dieses Programm ist freie Software. Sie koennen es unter den Bedingungen
6  * der GNU General Public License (GPL), wie von der Free Software Foundation
7  * herausgegeben, weitergeben und/oder modifizieren, entweder unter Version 2
8  * der Lizenz oder (wenn Sie es wuenschen) jeder spaeteren Version.
9  * Naehere Informationen entnehmen Sie bitter der Datei COPYING. Eine Liste
10  * der an ngIRCd beteiligten Autoren finden Sie in der Datei AUTHORS.
11  *
12  * $Id: log.c,v 1.24 2002/03/27 16:40:06 alex Exp $
13  *
14  * log.c: Logging-Funktionen
15  */
16 
17 
18 #include "portab.h"
19 
20 #include "imp.h"
21 #include <assert.h>
22 #include <errno.h>
23 #include <stdarg.h>
24 #include <stdio.h>
25 #include <string.h>
26 #include <sys/types.h>
27 #include <unistd.h>
28 
29 #ifdef USE_SYSLOG
30 #include <syslog.h>
31 #endif
32 
33 #include "ngircd.h"
34 #include "defines.h"
35 
36 #include "exp.h"
37 #include "log.h"
38 
39 
40 GLOBAL VOID Log_Init( VOID )
41 {
42 	CHAR txt[127];
43 
44 #ifdef USE_SYSLOG
45 	/* Syslog initialisieren */
46 	openlog( PACKAGE, LOG_CONS|LOG_PID, LOG_LOCAL5 );
47 #endif
48 
49 	/* Hello World! */
50 	Log( LOG_NOTICE, "%s started.", NGIRCd_Version( ));
51 	  
52 	/* Informationen uebern den "Operation Mode" */
53 	strcpy( txt, "" );
54 #ifdef DEBUG
55 	if( NGIRCd_Debug )
56 	{
57 		if( txt[0] ) strcat( txt, ", " );
58 		strcat( txt, "debug-mode" );
59 	}
60 #endif
61 	if( NGIRCd_NoDaemon )
62 	{
63 		if( txt[0] ) strcat( txt, ", " );
64 		strcat( txt, "no-daemon-mode" );
65 	}
66 	if( NGIRCd_Passive )
67 	{
68 		if( txt[0] ) strcat( txt, ", " );
69 		strcat( txt, "passive-mode" );
70 	}
71 #ifdef SNIFFER
72 	if( NGIRCd_Sniffer )
73 	{
74 		if( txt[0] ) strcat( txt, ", " );
75 		strcat( txt, "network sniffer" );
76 	}
77 #endif
78 	if( txt[0] ) Log( LOG_INFO, "Activating: %s.", txt );
79 
80 	/* stderr in Datei umlenken */
81 	fflush( stderr );
82 	if( ! freopen( ERROR_FILE, "a+", stderr )) Log( LOG_ERR, "Can't reopen stderr (\""ERROR_FILE"\"): %s", strerror( errno ));
83 
84 	fprintf( stderr, "\n--- %s ---\n\n", NGIRCd_StartStr );
85 	fprintf( stderr, "%s started.\npid=%ld, ppid=%ld, uid=%ld, gid=%ld [euid=%ld, egid=%ld].\nActivating: %s\n\n", NGIRCd_Version( ), (INT32)getpid( ), (INT32)getppid( ), (INT32)getuid( ), (INT32)getgid( ), (INT32)geteuid( ), (INT32)getegid( ), txt[0] ? txt : "-" );
86 	fflush( stderr );
87 } /* Log_Init */
88 
89 
90 GLOBAL VOID Log_Exit( VOID )
91 {
92 	time_t t;
93 	
94 	/* Good Bye! */
95 	Log( LOG_NOTICE, PACKAGE" done.");
96 
97 	t = time( NULL );
98 	fputs( ctime( &t ), stderr );
99 	fprintf( stderr, PACKAGE" done (pid=%ld).\n", (INT32)getpid( ));
100 	fflush( stderr );
101 
102 #ifdef USE_SYSLOG
103 	/* syslog abmelden */
104 	closelog( );
105 #endif
106 } /* Log_Exit */
107 
108 
109 GLOBAL VOID Log( CONST INT Level, CONST CHAR *Format, ... )
110 {
111 	/* Eintrag in Logfile(s) schreiben */
112 
113 	CHAR msg[MAX_LOG_MSG_LEN];
114 	va_list ap;
115 	time_t t;
116 
117 	assert( Format != NULL );
118 
119 #ifdef DEBUG
120 	if(( Level == LOG_DEBUG ) && ( ! NGIRCd_Debug )) return;
121 #else
122 	if( Level == LOG_DEBUG ) return;
123 #endif
124 
125 	/* String mit variablen Argumenten zusammenbauen ... */
126 	va_start( ap, Format );
127 	vsnprintf( msg, MAX_LOG_MSG_LEN, Format, ap );
128 	va_end( ap );
129 
130 	/* In Error-File schreiben */
131 	if( Level <= LOG_ERR )
132 	{
133 		t = time( NULL );
134 		fputs( ctime( &t ), stderr );
135 		fprintf( stderr, "[%d] %s\n\n", Level, msg );
136 	}
137 
138 	/* ... und ausgeben */
139 	if( NGIRCd_NoDaemon ) printf( "[%d] %s\n", Level, msg );
140 
141 #ifdef USE_SYSLOG
142 	/* Syslog */
143 	syslog( Level, msg );
144 #endif
145 } /* Log */
146 
147 
148 GLOBAL VOID Log_Init_Resolver( VOID )
149 {
150 #ifdef USE_SYSLOG
151 	openlog( PACKAGE, LOG_CONS|LOG_PID, LOG_LOCAL5 );
152 #endif
153 } /* Log_Init_Resolver */
154 
155 
156 GLOBAL VOID Log_Exit_Resolver( VOID )
157 {
158 #ifdef USE_SYSLOG
159 	closelog( );
160 #endif
161 } /* Log_Exit_Resolver */
162 
163 
164 GLOBAL VOID Log_Resolver( CONST INT Level, CONST CHAR *Format, ... )
165 {
166 	/* Eintrag des Resolver in Logfile(s) schreiben */
167 
168 #ifndef USE_SYSLOG
169 	return;
170 #else
171 
172 	CHAR msg[MAX_LOG_MSG_LEN];
173 	va_list ap;
174 
175 	assert( Format != NULL );
176 
177 #ifdef DEBUG
178 	if(( Level == LOG_DEBUG ) && ( ! NGIRCd_Debug )) return;
179 #else
180 	if( Level == LOG_DEBUG ) return;
181 #endif
182 
183 	/* String mit variablen Argumenten zusammenbauen ... */
184 	va_start( ap, Format );
185 	vsnprintf( msg, MAX_LOG_MSG_LEN, Format, ap );
186 	va_end( ap );
187 
188 	/* ... und ausgeben */
189 	syslog( Level, msg );
190 
191 #endif
192 } /* Log_Resolver */
193 
194 
195 /* -eof- */