svn commit: trunk/busybox: include sysklogd util-linux
vda at busybox.net
vda at busybox.net
Fri Nov 16 20:18:55 UTC 2007
Author: vda
Date: 2007-11-16 12:18:54 -0800 (Fri, 16 Nov 2007)
New Revision: 20442
Log:
dmesg,klogd: make code more readable
libbb: explain why we declare klogctl
libbb: move defs around so that order makes more sense
Modified:
trunk/busybox/include/libbb.h
trunk/busybox/sysklogd/klogd.c
trunk/busybox/util-linux/dmesg.c
Changeset:
Modified: trunk/busybox/include/libbb.h
===================================================================
--- trunk/busybox/include/libbb.h 2007-11-16 16:10:25 UTC (rev 20441)
+++ trunk/busybox/include/libbb.h 2007-11-16 20:18:54 UTC (rev 20442)
@@ -26,7 +26,6 @@
#include <stdarg.h>
#include <stddef.h>
#include <string.h>
-/* #include <strings.h> - said to be obsolete */
#include <sys/poll.h>
#include <sys/ioctl.h>
#include <sys/mman.h>
@@ -40,6 +39,12 @@
#include <time.h>
#include <unistd.h>
#include <utime.h>
+/* Try to pull in PATH_MAX */
+#include <limits.h>
+#include <sys/param.h>
+#ifndef PATH_MAX
+#define PATH_MAX 256
+#endif
#if ENABLE_SELINUX
#include <selinux/selinux.h>
@@ -62,14 +67,37 @@
#include "shadow_.h"
#endif
-/* Try to pull in PATH_MAX */
-#include <limits.h>
-#include <sys/param.h>
-#ifndef PATH_MAX
-#define PATH_MAX 256
+#if defined(__GLIBC__) && __GLIBC__ < 2
+int vdprintf(int d, const char *format, va_list ap);
#endif
+/* klogctl is in libc's klog.h, but we cheat and not #include that */
+int klogctl(int type, char *b, int len);
+/* This is declared here rather than #including <libgen.h> in order to avoid
+ * confusing the two versions of basename. See the dirname/basename man page
+ * for details. */
+char *dirname(char *path);
+/* Include our own copy of struct sysinfo to avoid binary compatibility
+ * problems with Linux 2.4, which changed things. Grumble, grumble. */
+struct sysinfo {
+ long uptime; /* Seconds since boot */
+ unsigned long loads[3]; /* 1, 5, and 15 minute load averages */
+ unsigned long totalram; /* Total usable main memory size */
+ unsigned long freeram; /* Available memory size */
+ unsigned long sharedram; /* Amount of shared memory */
+ unsigned long bufferram; /* Memory used by buffers */
+ unsigned long totalswap; /* Total swap space size */
+ unsigned long freeswap; /* swap space still available */
+ unsigned short procs; /* Number of current processes */
+ unsigned short pad; /* Padding needed for m68k */
+ unsigned long totalhigh; /* Total high memory size */
+ unsigned long freehigh; /* Available high memory size */
+ unsigned int mem_unit; /* Memory unit size in bytes */
+ char _f[20 - 2*sizeof(long) - sizeof(int)]; /* Padding: libc5 uses this.. */
+};
+int sysinfo(struct sysinfo* info);
-/* Tested to work correctly (IIRC :]) */
+
+/* Tested to work correctly with all int types (IIRC :]) */
#define MAXINT(T) (T)( \
((T)-1) > 0 \
? (T)-1 \
@@ -83,7 +111,7 @@
)
/* Large file support */
-/* Note that CONFIG_LFS forces bbox to be built with all common ops
+/* Note that CONFIG_LFS=y forces bbox to be built with all common ops
* (stat, lseek etc) mapped to "largefile" variants by libc.
* Practically it means that open() automatically has O_LARGEFILE added
* and all filesize/file_offset parameters and struct members are "large"
@@ -167,7 +195,6 @@
#endif
#endif
-
#if defined(__GLIBC__)
/* glibc uses __errno_location() to get a ptr to errno */
/* We can just memorize it once - no multithreading in busybox :) */
@@ -176,33 +203,6 @@
#define errno (*bb_errno)
#endif
-#if defined(__GLIBC__) && __GLIBC__ < 2
-int vdprintf(int d, const char *format, va_list ap);
-#endif
-// This is declared here rather than #including <libgen.h> in order to avoid
-// confusing the two versions of basename. See the dirname/basename man page
-// for details.
-char *dirname(char *path);
-/* Include our own copy of struct sysinfo to avoid binary compatibility
- * problems with Linux 2.4, which changed things. Grumble, grumble. */
-struct sysinfo {
- long uptime; /* Seconds since boot */
- unsigned long loads[3]; /* 1, 5, and 15 minute load averages */
- unsigned long totalram; /* Total usable main memory size */
- unsigned long freeram; /* Available memory size */
- unsigned long sharedram; /* Amount of shared memory */
- unsigned long bufferram; /* Memory used by buffers */
- unsigned long totalswap; /* Total swap space size */
- unsigned long freeswap; /* swap space still available */
- unsigned short procs; /* Number of current processes */
- unsigned short pad; /* Padding needed for m68k */
- unsigned long totalhigh; /* Total high memory size */
- unsigned long freehigh; /* Available high memory size */
- unsigned int mem_unit; /* Memory unit size in bytes */
- char _f[20-2*sizeof(long)-sizeof(int)]; /* Padding: libc5 uses this.. */
-};
-int sysinfo(struct sysinfo* info);
-
unsigned long long monotonic_us(void);
unsigned monotonic_sec(void);
@@ -788,7 +788,6 @@
//TODO: pass buf pointer or return allocated buf (avoid statics)?
char *bb_askpass(int timeout, const char * prompt);
int bb_ask_confirmation(void);
-int klogctl(int type, char * b, int len);
extern int bb_parse_mode(const char* s, mode_t* theMode);
Modified: trunk/busybox/sysklogd/klogd.c
===================================================================
--- trunk/busybox/sysklogd/klogd.c 2007-11-16 16:10:25 UTC (rev 20441)
+++ trunk/busybox/sysklogd/klogd.c 2007-11-16 20:18:54 UTC (rev 20442)
@@ -24,16 +24,17 @@
static void klogd_signal(int sig ATTRIBUTE_UNUSED)
{
klogctl(7, NULL, 0);
- klogctl(0, 0, 0);
- syslog(LOG_NOTICE, "Kernel log daemon exiting");
+ klogctl(0, NULL, 0);
+ syslog(LOG_NOTICE, "klogd: exiting");
exit(EXIT_SUCCESS);
}
-#define OPT_LEVEL 1
-#define OPT_FOREGROUND 2
-
-#define KLOGD_LOGBUF_SIZE BUFSIZ
#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, char **argv)
Modified: trunk/busybox/util-linux/dmesg.c
===================================================================
--- trunk/busybox/util-linux/dmesg.c 2007-11-16 16:10:25 UTC (rev 20441)
+++ trunk/busybox/util-linux/dmesg.c 2007-11-16 20:18:54 UTC (rev 20442)
@@ -15,40 +15,48 @@
int dmesg_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
int dmesg_main(int argc, char **argv)
{
+ int len;
+ char *buf;
char *size, *level;
int flags = getopt32(argv, "cs:n:", &size, &level);
if (flags & 4) {
if (klogctl(8, NULL, xatoul_range(level, 0, 10)))
bb_perror_msg_and_die("klogctl");
- } else {
- int len;
- char *buf;
+ return EXIT_SUCCESS;
+ }
- len = (flags & 2) ? xatoul_range(size, 2, INT_MAX) : 16384;
- buf = xmalloc(len);
- len = klogctl(3 + (flags & 1), buf, len);
- if (len < 0)
- bb_perror_msg_and_die("klogctl");
+ len = (flags & 2) ? xatoul_range(size, 2, INT_MAX) : 16384;
+ buf = xmalloc(len);
+ len = klogctl(3 + (flags & 1), buf, len);
+ if (len < 0)
+ bb_perror_msg_and_die("klogctl");
+ if (len == 0)
+ return EXIT_SUCCESS;
- // Skip <#> at the start of lines, and make sure we end with a newline.
+ /* Skip <#> at the start of lines, and make sure we end with a newline. */
- if (ENABLE_FEATURE_DMESG_PRETTY) {
- int last = '\n';
- int in;
+ if (ENABLE_FEATURE_DMESG_PRETTY) {
+ int last = '\n';
+ int in = 0;
- for (in = 0; in<len;) {
- if (last == '\n' && buf[in] == '<') in += 3;
- else bb_putchar(last = buf[in++]);
+ do {
+ if (last == '\n' && buf[in] == '<')
+ in += 3;
+ else {
+ last = buf[in++];
+ bb_putchar(last);
}
- if (last != '\n') bb_putchar('\n');
- } else {
- write(1,buf,len);
- if (len && buf[len-1]!='\n') bb_putchar('\n');
- }
-
- if (ENABLE_FEATURE_CLEAN_UP) free(buf);
+ } while (in < len);
+ if (last != '\n')
+ bb_putchar('\n');
+ } else {
+ full_write(STDOUT_FILENO, buf, len);
+ if (buf[len-1] != '\n')
+ bb_putchar('\n');
}
- return 0;
+ if (ENABLE_FEATURE_CLEAN_UP) free(buf);
+
+ return EXIT_SUCCESS;
}
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