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author | Kolja Dummann <k.dummann@gmail.com> | 2011-05-26 23:13:57 +0200 |
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committer | Kolja Dummann <k.dummann@gmail.com> | 2011-05-28 18:23:34 +0200 |
commit | 163c7a28554f63d61f26391f223adcbbe0cdb2e3 (patch) | |
tree | 6b9c361dbbe7a0c3f8ab43ba3362274e16115772 /setup_fs.c | |
parent | 32f1062d6f60bf4a38c17413660ae1b4634d740c (diff) | |
download | device_samsung_aries-common-163c7a28554f63d61f26391f223adcbbe0cdb2e3.zip device_samsung_aries-common-163c7a28554f63d61f26391f223adcbbe0cdb2e3.tar.gz device_samsung_aries-common-163c7a28554f63d61f26391f223adcbbe0cdb2e3.tar.bz2 |
overlay: code dedup, move overlay to aries-common
new update script for radio image
fix tethering interface
Change-Id: I19583cce1aac14cef01f5ba05b85fb1bfbedb507
Diffstat (limited to 'setup_fs.c')
-rw-r--r-- | setup_fs.c | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/setup_fs.c b/setup_fs.c new file mode 100644 index 0000000..0acf026 --- /dev/null +++ b/setup_fs.c @@ -0,0 +1,75 @@ +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> +#include <sys/reboot.h> +#include <sys/wait.h> + +const char *mkfs = "/system/bin/make_ext4fs"; + +int setup_fs(const char *blockdev) +{ + char buf[256], path[128]; + pid_t child; + int status, n; + + /* we might be looking at an indirect reference */ + n = readlink(blockdev, path, sizeof(path) - 1); + if (n > 0) { + path[n] = 0; + if (!memcmp(path, "/dev/block/", 11)) + blockdev = path + 11; + } + + if (strchr(blockdev,'/')) { + fprintf(stderr,"not a block device name: %s\n", blockdev); + return 0; + } + + sprintf(buf,"/sys/fs/ext4/%s", blockdev); + if (access(buf, F_OK) == 0) { + fprintf(stderr,"device %s already has a filesystem\n", blockdev); + return 0; + } + sprintf(buf,"/dev/block/%s", blockdev); + + fprintf(stderr,"+++\n"); + + child = fork(); + if (child < 0) { + fprintf(stderr,"error: fork failed\n"); + return 0; + } + if (child == 0) { + execl(mkfs, mkfs, buf, NULL); + exit(-1); + } + + while (waitpid(-1, &status, 0) != child) ; + + fprintf(stderr,"---\n"); + return 1; +} + + +int main(int argc, char **argv) +{ + int need_reboot = 0; + + while (argc > 1) { + if (strlen(argv[1]) < 128) + need_reboot |= setup_fs(argv[1]); + argv++; + argc--; + } + + if (need_reboot) { + sync(); + sync(); + sync(); + fprintf(stderr,"REBOOT!\n"); + reboot(RB_AUTOBOOT); + exit(-1); + } + return 0; +} |