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| author | Denis Vlasenko <vda.linux@googlemail.com> | 2006-12-27 04:35:04 +0000 |
|---|---|---|
| committer | Denis Vlasenko <vda.linux@googlemail.com> | 2006-12-27 04:35:04 +0000 |
| commit | 8d42f86b146871ae4c4cafd3801a85f381249a14 (patch) | |
| tree | b963999fc54eddb65f1929b894f868e24851fc9c /util-linux/dmesg.c | |
| download | busybox-w32-8d42f86b146871ae4c4cafd3801a85f381249a14.tar.gz busybox-w32-8d42f86b146871ae4c4cafd3801a85f381249a14.tar.bz2 busybox-w32-8d42f86b146871ae4c4cafd3801a85f381249a14.zip | |
Correcting branch name to be like previous ones
Diffstat (limited to 'util-linux/dmesg.c')
| -rw-r--r-- | util-linux/dmesg.c | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/util-linux/dmesg.c b/util-linux/dmesg.c new file mode 100644 index 000000000..658cddc38 --- /dev/null +++ b/util-linux/dmesg.c | |||
| @@ -0,0 +1,53 @@ | |||
| 1 | /* vi: set sw=4 ts=4: */ | ||
| 2 | /* | ||
| 3 | * | ||
| 4 | * dmesg - display/control kernel ring buffer. | ||
| 5 | * | ||
| 6 | * Copyright 2006 Rob Landley <rob@landley.net> | ||
| 7 | * Copyright 2006 Bernhard Fischer <rep.nop@aon.at> | ||
| 8 | * | ||
| 9 | * Licensed under GPLv2, see file LICENSE in this tarball for details. | ||
| 10 | */ | ||
| 11 | |||
| 12 | #include "busybox.h" | ||
| 13 | #include <unistd.h> | ||
| 14 | #include <sys/klog.h> | ||
| 15 | |||
| 16 | int dmesg_main(int argc, char *argv[]) | ||
| 17 | { | ||
| 18 | char *size, *level; | ||
| 19 | int flags = getopt32(argc, argv, "cs:n:", &size, &level); | ||
| 20 | |||
| 21 | if (flags & 4) { | ||
| 22 | if (klogctl(8, NULL, xatoul_range(level, 0, 10))) | ||
| 23 | bb_perror_msg_and_die("klogctl"); | ||
| 24 | } else { | ||
| 25 | int len; | ||
| 26 | char *buf; | ||
| 27 | |||
| 28 | len = (flags & 2) ? xatoul_range(size, 2, INT_MAX) : 16384; | ||
| 29 | buf = xmalloc(len); | ||
| 30 | if (0 > (len = klogctl(3 + (flags & 1), buf, len))) | ||
| 31 | bb_perror_msg_and_die("klogctl"); | ||
| 32 | |||
| 33 | // Skip <#> at the start of lines, and make sure we end with a newline. | ||
| 34 | |||
| 35 | if (ENABLE_FEATURE_DMESG_PRETTY) { | ||
| 36 | int last = '\n'; | ||
| 37 | int in; | ||
| 38 | |||
| 39 | for (in = 0; in<len;) { | ||
| 40 | if (last == '\n' && buf[in] == '<') in += 3; | ||
| 41 | else putchar(last = buf[in++]); | ||
| 42 | } | ||
| 43 | if (last != '\n') putchar('\n'); | ||
| 44 | } else { | ||
| 45 | write(1,buf,len); | ||
| 46 | if (len && buf[len-1]!='\n') putchar('\n'); | ||
| 47 | } | ||
| 48 | |||
| 49 | if (ENABLE_FEATURE_CLEAN_UP) free(buf); | ||
| 50 | } | ||
| 51 | |||
| 52 | return 0; | ||
| 53 | } | ||