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| author | Eric Andersen <andersen@codepoet.org> | 2001-03-16 22:47:14 +0000 |
|---|---|---|
| committer | Eric Andersen <andersen@codepoet.org> | 2001-03-16 22:47:14 +0000 |
| commit | aad1a88c76f208d188fd061e3723bd637437e8d5 (patch) | |
| tree | 75ac2b994f7f04af776e93eeedba82b873ff557e /libbb/kernel_version.c | |
| parent | dfba13d199bb58d802df99c1ef20fdc0d628e86d (diff) | |
| download | busybox-w32-aad1a88c76f208d188fd061e3723bd637437e8d5.tar.gz busybox-w32-aad1a88c76f208d188fd061e3723bd637437e8d5.tar.bz2 busybox-w32-aad1a88c76f208d188fd061e3723bd637437e8d5.zip | |
Convert utility.c into libbb.a. It is now a whole pile of .c
files. Clean up the resulting damage and fix up the makefile.
-Erik
Diffstat (limited to 'libbb/kernel_version.c')
| -rw-r--r-- | libbb/kernel_version.c | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/libbb/kernel_version.c b/libbb/kernel_version.c new file mode 100644 index 000000000..09cd582c4 --- /dev/null +++ b/libbb/kernel_version.c | |||
| @@ -0,0 +1,66 @@ | |||
| 1 | /* vi: set sw=4 ts=4: */ | ||
| 2 | /* | ||
| 3 | * Utility routines. | ||
| 4 | * | ||
| 5 | * Copyright (C) tons of folks. Tracking down who wrote what | ||
| 6 | * isn't something I'm going to worry about... If you wrote something | ||
| 7 | * here, please feel free to acknowledge your work. | ||
| 8 | * | ||
| 9 | * This program is free software; you can redistribute it and/or modify | ||
| 10 | * it under the terms of the GNU General Public License as published by | ||
| 11 | * the Free Software Foundation; either version 2 of the License, or | ||
| 12 | * (at your option) any later version. | ||
| 13 | * | ||
| 14 | * This program is distributed in the hope that it will be useful, | ||
| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
| 17 | * General Public License for more details. | ||
| 18 | * | ||
| 19 | * You should have received a copy of the GNU General Public License | ||
| 20 | * along with this program; if not, write to the Free Software | ||
| 21 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
| 22 | * | ||
| 23 | * Based in part on code from sash, Copyright (c) 1999 by David I. Bell | ||
| 24 | * Permission has been granted to redistribute this code under the GPL. | ||
| 25 | * | ||
| 26 | */ | ||
| 27 | |||
| 28 | #include <stdio.h> | ||
| 29 | #include <string.h> | ||
| 30 | #include <stdlib.h> | ||
| 31 | #include <sys/utsname.h> /* for uname(2) */ | ||
| 32 | |||
| 33 | #include "libbb.h" | ||
| 34 | |||
| 35 | /* Returns kernel version encoded as major*65536 + minor*256 + patch, | ||
| 36 | * so, for example, to check if the kernel is greater than 2.2.11: | ||
| 37 | * if (get_kernel_revision() <= 2*65536+2*256+11) { <stuff> } | ||
| 38 | */ | ||
| 39 | extern int get_kernel_revision(void) | ||
| 40 | { | ||
| 41 | struct utsname name; | ||
| 42 | char *s; | ||
| 43 | int i, r; | ||
| 44 | |||
| 45 | if (uname(&name) == -1) { | ||
| 46 | perror_msg("cannot get system information"); | ||
| 47 | return (0); | ||
| 48 | } | ||
| 49 | |||
| 50 | s = name.release; | ||
| 51 | r = 0; | ||
| 52 | for (i=0 ; i<3 ; i++) { | ||
| 53 | r = r * 256 + atoi(strtok(s, ".")); | ||
| 54 | s = NULL; | ||
| 55 | } | ||
| 56 | return r; | ||
| 57 | } | ||
| 58 | |||
| 59 | /* END CODE */ | ||
| 60 | /* | ||
| 61 | Local Variables: | ||
| 62 | c-file-style: "linux" | ||
| 63 | c-basic-offset: 4 | ||
| 64 | tab-width: 4 | ||
| 65 | End: | ||
| 66 | */ | ||