diff options
Diffstat (limited to 'klogd.c')
-rw-r--r-- | klogd.c | 153 |
1 files changed, 0 insertions, 153 deletions
diff --git a/klogd.c b/klogd.c deleted file mode 100644 index d7b54e9c8..000000000 --- a/klogd.c +++ /dev/null | |||
@@ -1,153 +0,0 @@ | |||
1 | /* vi: set sw=4 ts=4: */ | ||
2 | /* | ||
3 | * Mini klogd implementation for busybox | ||
4 | * | ||
5 | * Copyright (C) 2001 by Gennady Feldman <gfeldman@cachier.com>. | ||
6 | * Changes: Made this a standalone busybox module which uses standalone | ||
7 | * syslog() client interface. | ||
8 | * | ||
9 | * Copyright (C) 1999,2000,2001 by Lineo, inc. | ||
10 | * Written by Erik Andersen <andersen@lineo.com>, <andersee@debian.org> | ||
11 | * | ||
12 | * Copyright (C) 2000 by Karl M. Hegbloom <karlheg@debian.org> | ||
13 | * | ||
14 | * "circular buffer" Copyright (C) 2000 by Gennady Feldman <gfeldman@mail.com> | ||
15 | * | ||
16 | * Maintainer: Gennady Feldman <gena01@cachier.com> as of Mar 12, 2001 | ||
17 | * | ||
18 | * This program is free software; you can redistribute it and/or modify | ||
19 | * it under the terms of the GNU General Public License as published by | ||
20 | * the Free Software Foundation; either version 2 of the License, or | ||
21 | * (at your option) any later version. | ||
22 | * | ||
23 | * This program is distributed in the hope that it will be useful, | ||
24 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
25 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
26 | * General Public License for more details. | ||
27 | * | ||
28 | * You should have received a copy of the GNU General Public License | ||
29 | * along with this program; if not, write to the Free Software | ||
30 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
31 | * | ||
32 | */ | ||
33 | |||
34 | #include <stdio.h> | ||
35 | #include <stdlib.h> | ||
36 | #include <signal.h> /* for our signal() handlers */ | ||
37 | #include <string.h> /* strncpy() */ | ||
38 | #include <errno.h> /* errno and friends */ | ||
39 | #include <unistd.h> | ||
40 | #include <ctype.h> | ||
41 | #include <sys/syslog.h> | ||
42 | |||
43 | #if __GNU_LIBRARY__ < 5 | ||
44 | # ifdef __alpha__ | ||
45 | # define klogctl syslog | ||
46 | # endif | ||
47 | #else | ||
48 | # include <sys/klog.h> | ||
49 | #endif | ||
50 | |||
51 | #include "busybox.h" | ||
52 | |||
53 | static void klogd_signal(int sig) | ||
54 | { | ||
55 | klogctl(7, NULL, 0); | ||
56 | klogctl(0, 0, 0); | ||
57 | //logMessage(0, "Kernel log daemon exiting."); | ||
58 | syslog_msg(LOG_DAEMON, 0, "Kernel log daemon exiting."); | ||
59 | exit(TRUE); | ||
60 | } | ||
61 | |||
62 | static void doKlogd (void) __attribute__ ((noreturn)); | ||
63 | static void doKlogd (void) | ||
64 | { | ||
65 | int priority = LOG_INFO; | ||
66 | char log_buffer[4096]; | ||
67 | int i, n, lastc; | ||
68 | char *start; | ||
69 | |||
70 | /* Set up sig handlers */ | ||
71 | signal(SIGINT, klogd_signal); | ||
72 | signal(SIGKILL, klogd_signal); | ||
73 | signal(SIGTERM, klogd_signal); | ||
74 | signal(SIGHUP, SIG_IGN); | ||
75 | |||
76 | /* "Open the log. Currently a NOP." */ | ||
77 | klogctl(1, NULL, 0); | ||
78 | |||
79 | syslog_msg(LOG_DAEMON, 0, "klogd started: " BB_BANNER); | ||
80 | |||
81 | while (1) { | ||
82 | /* Use kernel syscalls */ | ||
83 | memset(log_buffer, '\0', sizeof(log_buffer)); | ||
84 | n = klogctl(2, log_buffer, sizeof(log_buffer)); | ||
85 | if (n < 0) { | ||
86 | char message[80]; | ||
87 | |||
88 | if (errno == EINTR) | ||
89 | continue; | ||
90 | snprintf(message, 79, "klogd: Error return from sys_sycall: %d - %s.\n", | ||
91 | errno, strerror(errno)); | ||
92 | syslog_msg(LOG_DAEMON, LOG_SYSLOG | LOG_ERR, message); | ||
93 | exit(1); | ||
94 | } | ||
95 | |||
96 | /* klogctl buffer parsing modelled after code in dmesg.c */ | ||
97 | start=&log_buffer[0]; | ||
98 | lastc='\0'; | ||
99 | for (i=0; i<n; i++) { | ||
100 | if (lastc == '\0' && log_buffer[i] == '<') { | ||
101 | priority = 0; | ||
102 | i++; | ||
103 | while (isdigit(log_buffer[i])) { | ||
104 | priority = priority*10+(log_buffer[i]-'0'); | ||
105 | i++; | ||
106 | } | ||
107 | if (log_buffer[i] == '>') i++; | ||
108 | start = &log_buffer[i]; | ||
109 | } | ||
110 | if (log_buffer[i] == '\n') { | ||
111 | log_buffer[i] = '\0'; /* zero terminate this message */ | ||
112 | syslog_msg(LOG_DAEMON, LOG_KERN | priority, start); | ||
113 | start = &log_buffer[i+1]; | ||
114 | priority = LOG_INFO; | ||
115 | } | ||
116 | lastc = log_buffer[i]; | ||
117 | } | ||
118 | } | ||
119 | } | ||
120 | |||
121 | extern int klogd_main(int argc, char **argv) | ||
122 | { | ||
123 | /* no options, no getopt */ | ||
124 | int opt; | ||
125 | int doFork = TRUE; | ||
126 | |||
127 | /* do normal option parsing */ | ||
128 | while ((opt = getopt(argc, argv, "n")) > 0) { | ||
129 | switch (opt) { | ||
130 | case 'n': | ||
131 | doFork = FALSE; | ||
132 | break; | ||
133 | default: | ||
134 | show_usage(); | ||
135 | } | ||
136 | } | ||
137 | |||
138 | if (doFork == TRUE) { | ||
139 | if (daemon(0, 1) < 0) | ||
140 | perror_msg_and_die("daemon"); | ||
141 | } | ||
142 | doKlogd(); | ||
143 | |||
144 | return EXIT_SUCCESS; | ||
145 | } | ||
146 | |||
147 | /* | ||
148 | Local Variables | ||
149 | c-file-style: "linux" | ||
150 | c-basic-offset: 4 | ||
151 | tab-width: 4 | ||
152 | End: | ||
153 | */ | ||