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authorGravatar Richard Braun <rbraun@sceen.net>2010-10-05 00:39:46 +0200
committerGravatar Denys Vlasenko <vda.linux@googlemail.com>2010-10-05 00:39:46 +0200
commit5aa4d532735b715f10560513e79e96f237957570 (patch)
tree57ffb6f0d4addae7b0cb3da499590dc0baf295c2 /e2fsprogs/tune2fs.c
parentcacb2cd281392135871364c3beb1f8143396ccc0 (diff)
downloadbusybox-5aa4d532735b715f10560513e79e96f237957570.tar.gz
busybox-5aa4d532735b715f10560513e79e96f237957570.tar.bz2
tune2fs: implement -c and -i options
function old new delta tune2fs_main 165 256 +91 Signed-off-by: Richard Braun <rbraun@sceen.net> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'e2fsprogs/tune2fs.c')
-rw-r--r--e2fsprogs/tune2fs.c40
1 files changed, 35 insertions, 5 deletions
diff --git a/e2fsprogs/tune2fs.c b/e2fsprogs/tune2fs.c
index 311349fec..75e4f6bcf 100644
--- a/e2fsprogs/tune2fs.c
+++ b/e2fsprogs/tune2fs.c
@@ -27,24 +27,40 @@ do { \
#define FETCH_LE32(field) \
(sizeof(field) == 4 ? SWAP_LE32(field) : BUG_wrong_field_size())
+//usage:#define tune2fs_trivial_usage
+//usage: "[-c MOUNT_CNT] "
+////usage: "[-e errors-behavior] [-g group] "
+//usage: "[-i DAYS] "
+////usage: "[-j] [-J journal-options] [-l] [-s sparse-flag] "
+////usage: "[-m reserved-blocks-percent] [-o [^]mount-options[,...]] "
+////usage: "[-r reserved-blocks-count] [-u user] [-C mount-count] "
+//usage: "[-L LABEL] "
+////usage: "[-M last-mounted-dir] [-O [^]feature[,...]] "
+////usage: "[-T last-check-time] [-U UUID] "
+//usage: "BLOCKDEV"
+//usage:
+//usage:#define tune2fs_full_usage "\n\n"
+//usage: "Adjust filesystem options on ext[23] filesystems"
+
enum {
OPT_L = 1 << 0, // label
+ OPT_c = 1 << 1, // max mount count
+ OPT_i = 1 << 2, // check interval
};
int tune2fs_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
int tune2fs_main(int argc UNUSED_PARAM, char **argv)
{
unsigned opts;
- const char *label;
+ const char *label, *str_c, *str_i;
struct ext2_super_block *sb;
int fd;
opt_complementary = "=1";
- opts = getopt32(argv, "L:", &label);
- argv += optind; // argv[0] -- device
-
+ opts = getopt32(argv, "L:c:i:", &label, &str_c, &str_i);
if (!opts)
bb_show_usage();
+ argv += optind; // argv[0] -- device
// read superblock
fd = xopen(argv[0], O_RDWR);
@@ -54,9 +70,23 @@ int tune2fs_main(int argc UNUSED_PARAM, char **argv)
// mangle superblock
//STORE_LE(sb->s_wtime, time(NULL)); - why bother?
+
// set the label
- if (1 /*opts & OPT_L*/)
+ if (opts & OPT_L)
safe_strncpy((char *)sb->s_volume_name, label, sizeof(sb->s_volume_name));
+
+ if (opts & OPT_c) {
+ int n = xatoi_range(str_c, -1, 0xfffe);
+ if (n == 0)
+ n = -1;
+ STORE_LE(sb->s_max_mnt_count, (unsigned)n);
+ }
+
+ if (opts & OPT_i) {
+ unsigned n = xatou_range(str_i, 0, (unsigned)0xffffffff / (24*60*60)) * 24*60*60;
+ STORE_LE(sb->s_checkinterval, n);
+ }
+
// write superblock
xlseek(fd, 1024, SEEK_SET);
xwrite(fd, sb, 1024);