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1 | /* |
2 | * DEBUG: section 50 Log file handling | |
3 | * AUTHOR: Duane Wessels | |
4 | * | |
5 | * SQUID Web Proxy Cache http://www.squid-cache.org/ | |
6 | * ---------------------------------------------------------- | |
7 | * | |
8 | * Squid is the result of efforts by numerous individuals from | |
9 | * the Internet community; see the CONTRIBUTORS file for full | |
10 | * details. Many organizations have provided support for Squid's | |
11 | * development; see the SPONSORS file for full details. Squid is | |
12 | * Copyrighted (C) 2001 by the Regents of the University of | |
13 | * California; see the COPYRIGHT file for full details. Squid | |
14 | * incorporates software developed and/or copyrighted by other | |
15 | * sources; see the CREDITS file for full details. | |
16 | * | |
17 | * This program is free software; you can redistribute it and/or modify | |
18 | * it under the terms of the GNU General Public License as published by | |
19 | * the Free Software Foundation; either version 2 of the License, or | |
20 | * (at your option) any later version. | |
21 | * | |
22 | * This program is distributed in the hope that it will be useful, | |
23 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
24 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
25 | * GNU General Public License for more details. | |
26 | * | |
27 | * You should have received a copy of the GNU General Public License | |
28 | * along with this program; if not, write to the Free Software | |
29 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA. | |
30 | * | |
31 | */ | |
32 | ||
33 | #include "squid.h" | |
34 | ||
35 | #if HAVE_SYSLOG | |
36 | ||
37 | #include "log/File.h" | |
38 | #include "log/ModSyslog.h" | |
39 | ||
40 | /* Define LOG_AUTHPRIV as LOG_AUTH on systems still using the old deprecated LOG_AUTH */ | |
41 | #if !defined(LOG_AUTHPRIV) && defined(LOG_AUTH) | |
42 | #define LOG_AUTHPRIV LOG_AUTH | |
43 | #endif | |
44 | ||
45 | typedef struct { | |
46 | const char *name; | |
47 | int value; | |
48 | } syslog_symbol_t; | |
49 | ||
50 | static int | |
51 | syslog_ntoa(const char *s) | |
52 | { | |
53 | #define syslog_symbol(a) #a, a | |
54 | static syslog_symbol_t symbols[] = | |
55 | { | |
56 | #ifdef LOG_AUTHPRIV | |
57 | {syslog_symbol(LOG_AUTHPRIV)}, | |
58 | #endif | |
59 | #ifdef LOG_DAEMON | |
60 | {syslog_symbol(LOG_DAEMON)}, | |
61 | #endif | |
62 | #ifdef LOG_LOCAL0 | |
63 | {syslog_symbol(LOG_LOCAL0)}, | |
64 | #endif | |
65 | #ifdef LOG_LOCAL1 | |
66 | {syslog_symbol(LOG_LOCAL1)}, | |
67 | #endif | |
68 | #ifdef LOG_LOCAL2 | |
69 | {syslog_symbol(LOG_LOCAL2)}, | |
70 | #endif | |
71 | #ifdef LOG_LOCAL3 | |
72 | {syslog_symbol(LOG_LOCAL3)}, | |
73 | #endif | |
74 | #ifdef LOG_LOCAL4 | |
75 | {syslog_symbol(LOG_LOCAL4)}, | |
76 | #endif | |
77 | #ifdef LOG_LOCAL5 | |
78 | {syslog_symbol(LOG_LOCAL5)}, | |
79 | #endif | |
80 | #ifdef LOG_LOCAL6 | |
81 | {syslog_symbol(LOG_LOCAL6)}, | |
82 | #endif | |
83 | #ifdef LOG_LOCAL7 | |
84 | {syslog_symbol(LOG_LOCAL7)}, | |
85 | #endif | |
86 | #ifdef LOG_USER | |
87 | {syslog_symbol(LOG_USER)}, | |
88 | #endif | |
89 | #ifdef LOG_ERR | |
90 | {syslog_symbol(LOG_ERR)}, | |
91 | #endif | |
92 | #ifdef LOG_WARNING | |
93 | {syslog_symbol(LOG_WARNING)}, | |
94 | #endif | |
95 | #ifdef LOG_NOTICE | |
96 | {syslog_symbol(LOG_NOTICE)}, | |
97 | #endif | |
98 | #ifdef LOG_INFO | |
99 | {syslog_symbol(LOG_INFO)}, | |
100 | #endif | |
101 | #ifdef LOG_DEBUG | |
102 | {syslog_symbol(LOG_DEBUG)}, | |
103 | #endif | |
104 | {NULL, 0} | |
105 | }; | |
106 | syslog_symbol_t *p; | |
107 | ||
108 | for (p = symbols; p->name != NULL; ++p) | |
109 | if (!strcmp(s, p->name) || !strcasecmp(s, p->name + 4)) | |
110 | return p->value; | |
111 | ||
112 | debugs(1, 1, "Unknown syslog facility/priority '" << s << "'"); | |
113 | return 0; | |
114 | } | |
115 | ||
116 | typedef struct { | |
117 | int syslog_priority; | |
118 | } l_syslog_t; | |
119 | ||
120 | #define PRIORITY_MASK (LOG_ERR | LOG_WARNING | LOG_NOTICE | LOG_INFO | LOG_DEBUG) | |
121 | ||
122 | static void | |
123 | logfile_mod_syslog_writeline(Logfile * lf, const char *buf, size_t len) | |
124 | { | |
125 | l_syslog_t *ll = (l_syslog_t *) lf->data; | |
126 | syslog(ll->syslog_priority, "%s", (char *) buf); | |
127 | } | |
128 | ||
129 | static void | |
130 | logfile_mod_syslog_linestart(Logfile * lf) | |
131 | { | |
132 | } | |
133 | ||
134 | static void | |
135 | logfile_mod_syslog_lineend(Logfile * lf) | |
136 | { | |
137 | } | |
138 | ||
139 | static void | |
140 | logfile_mod_syslog_flush(Logfile * lf) | |
141 | { | |
142 | } | |
143 | ||
144 | static void | |
145 | logfile_mod_syslog_rotate(Logfile * lf) | |
146 | { | |
147 | } | |
148 | ||
149 | static void | |
150 | logfile_mod_syslog_close(Logfile * lf) | |
151 | { | |
152 | xfree(lf->data); | |
153 | lf->data = NULL; | |
154 | } | |
155 | ||
156 | ||
157 | ||
158 | /* | |
159 | * This code expects the path to be syslog:<priority> | |
160 | */ | |
161 | int | |
162 | logfile_mod_syslog_open(Logfile * lf, const char *path, size_t bufsz, int fatal_flag) | |
163 | { | |
164 | lf->f_close = logfile_mod_syslog_close; | |
165 | lf->f_linewrite = logfile_mod_syslog_writeline; | |
166 | lf->f_linestart = logfile_mod_syslog_linestart; | |
167 | lf->f_lineend = logfile_mod_syslog_lineend; | |
168 | lf->f_flush = logfile_mod_syslog_flush; | |
169 | lf->f_rotate = logfile_mod_syslog_rotate; | |
170 | ||
171 | l_syslog_t *ll = static_cast<l_syslog_t*>(xcalloc(1, sizeof(*ll))); | |
172 | lf->data = ll; | |
173 | ||
174 | ll->syslog_priority = LOG_INFO; | |
175 | ||
176 | if (path[6] != '\0') { | |
177 | char *priority = xstrdup(path); | |
178 | char *facility = (char *) strchr(priority, '.'); | |
179 | if (!facility) | |
180 | facility = (char *) strchr(priority, '|'); | |
181 | if (facility) { | |
182 | *facility++ = '\0'; | |
183 | ll->syslog_priority |= syslog_ntoa(facility); | |
184 | } | |
185 | ll->syslog_priority |= syslog_ntoa(priority); | |
186 | xfree(priority); | |
187 | if ((ll->syslog_priority & PRIORITY_MASK) == 0) | |
188 | ll->syslog_priority |= LOG_INFO; | |
189 | } | |
190 | ||
191 | return 1; | |
192 | } | |
193 | #endif |