mirror of
https://github.com/sheumann/hush.git
synced 2024-08-17 00:29:03 +00:00
function old new delta procps_scan 1265 1298 +33 aliascmd 278 283 +5 parse_file_cmd 116 120 +4 dname_enc 373 377 +4 setcmd 90 93 +3 execcmd 57 60 +3 count_lines 72 74 +2 process_command_subs 340 339 -1 test_main 409 407 -2 mknod_main 179 177 -2 handle_incoming_and_exit 2653 2651 -2 argstr 1312 1310 -2 shiftcmd 131 128 -3 exitcmd 46 43 -3 dotcmd 297 294 -3 breakcmd 86 83 -3 evalpipe 353 349 -4 evalcommand 1180 1176 -4 evalcmd 109 105 -4 send_tree 374 369 -5 mkfifo_main 82 77 -5 evalsubshell 152 147 -5 typecmd 75 69 -6 letcmd 61 55 -6 add_cmd 1190 1183 -7 main 891 883 -8 ash_main 1415 1407 -8 parse_stream 1377 1367 -10 alloc_procps_scan 55 - -55 ------------------------------------------------------------------------------ (add/remove: 0/1 grow/shrink: 7/21 up/down: 54/-148) Total: -94 bytes text data bss dec hex filename 797195 658 7428 805281 c49a1 busybox_old 797101 658 7428 805187 c4943 busybox_unstripped
122 lines
2.8 KiB
C
122 lines
2.8 KiB
C
/* vi: set sw=4 ts=4: */
|
|
/*
|
|
* Mini klogd implementation for busybox
|
|
*
|
|
* Copyright (C) 2001 by Gennady Feldman <gfeldman@gena01.com>.
|
|
* Changes: Made this a standalone busybox module which uses standalone
|
|
* syslog() client interface.
|
|
*
|
|
* Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
|
|
*
|
|
* Copyright (C) 2000 by Karl M. Hegbloom <karlheg@debian.org>
|
|
*
|
|
* "circular buffer" Copyright (C) 2000 by Gennady Feldman <gfeldman@gena01.com>
|
|
*
|
|
* Maintainer: Gennady Feldman <gfeldman@gena01.com> as of Mar 12, 2001
|
|
*
|
|
* Licensed under the GPL v2 or later, see the file LICENSE in this tarball.
|
|
*/
|
|
|
|
#include "libbb.h"
|
|
#include <syslog.h>
|
|
#include <sys/klog.h>
|
|
|
|
static void klogd_signal(int sig ATTRIBUTE_UNUSED)
|
|
{
|
|
klogctl(7, NULL, 0);
|
|
klogctl(0, NULL, 0);
|
|
syslog(LOG_NOTICE, "klogd: exiting");
|
|
kill_myself_with_sig(sig);
|
|
}
|
|
|
|
#define log_buffer bb_common_bufsiz1
|
|
enum {
|
|
KLOGD_LOGBUF_SIZE = sizeof(log_buffer),
|
|
OPT_LEVEL = (1 << 0),
|
|
OPT_FOREGROUND = (1 << 1),
|
|
};
|
|
|
|
int klogd_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
|
|
int klogd_main(int argc ATTRIBUTE_UNUSED, char **argv)
|
|
{
|
|
int i = i; /* silence gcc */
|
|
char *start;
|
|
|
|
/* do normal option parsing */
|
|
getopt32(argv, "c:n", &start);
|
|
|
|
if (option_mask32 & OPT_LEVEL) {
|
|
/* Valid levels are between 1 and 8 */
|
|
i = xatoul_range(start, 1, 8);
|
|
}
|
|
|
|
if (!(option_mask32 & OPT_FOREGROUND)) {
|
|
bb_daemonize_or_rexec(DAEMON_CHDIR_ROOT, argv);
|
|
}
|
|
|
|
openlog("kernel", 0, LOG_KERN);
|
|
|
|
/* Set up sig handlers */
|
|
bb_signals(0
|
|
+ (1 << SIGINT)
|
|
+ (1 << SIGTERM)
|
|
, klogd_signal);
|
|
signal(SIGHUP, SIG_IGN);
|
|
|
|
/* "Open the log. Currently a NOP." */
|
|
klogctl(1, NULL, 0);
|
|
|
|
/* Set level of kernel console messaging. */
|
|
if (option_mask32 & OPT_LEVEL)
|
|
klogctl(8, NULL, i);
|
|
|
|
syslog(LOG_NOTICE, "klogd started: %s", bb_banner);
|
|
|
|
/* Note: this code does not detect incomplete messages
|
|
* (messages not ending with '\n' or just when kernel
|
|
* generates too many messages for us to keep up)
|
|
* and will split them in two separate lines */
|
|
while (1) {
|
|
int n;
|
|
int priority;
|
|
|
|
n = klogctl(2, log_buffer, KLOGD_LOGBUF_SIZE - 1);
|
|
if (n < 0) {
|
|
if (errno == EINTR)
|
|
continue;
|
|
syslog(LOG_ERR, "klogd: error from klogctl(2): %d - %m",
|
|
errno);
|
|
break;
|
|
}
|
|
log_buffer[n] = '\n';
|
|
i = 0;
|
|
while (i < n) {
|
|
priority = LOG_INFO;
|
|
start = &log_buffer[i];
|
|
if (log_buffer[i] == '<') {
|
|
i++;
|
|
// kernel never ganerates multi-digit prios
|
|
//priority = 0;
|
|
//while (log_buffer[i] >= '0' && log_buffer[i] <= '9') {
|
|
// priority = priority * 10 + (log_buffer[i] - '0');
|
|
// i++;
|
|
//}
|
|
if (isdigit(log_buffer[i])) {
|
|
priority = (log_buffer[i] - '0');
|
|
i++;
|
|
}
|
|
if (log_buffer[i] == '>')
|
|
i++;
|
|
start = &log_buffer[i];
|
|
}
|
|
while (log_buffer[i] != '\n')
|
|
i++;
|
|
log_buffer[i] = '\0';
|
|
syslog(priority, "%s", start);
|
|
i++;
|
|
}
|
|
}
|
|
|
|
return EXIT_FAILURE;
|
|
}
|