diff options
Diffstat (limited to 'e2fsprogs/ext2fs/ismounted.c')
| -rw-r--r-- | e2fsprogs/ext2fs/ismounted.c | 64 |
1 files changed, 32 insertions, 32 deletions
diff --git a/e2fsprogs/ext2fs/ismounted.c b/e2fsprogs/ext2fs/ismounted.c index 3f2241d..2395cca 100644 --- a/e2fsprogs/ext2fs/ismounted.c +++ b/e2fsprogs/ext2fs/ismounted.c @@ -1,6 +1,6 @@ /* * ismounted.c --- Check to see if the filesystem was mounted - * + * * Copyright (C) 1995,1996,1997,1998,1999,2000 Theodore Ts'o. * * %Begin-Header% @@ -38,17 +38,17 @@ /* * Helper function which checks a file in /etc/mtab format to see if a * filesystem is mounted. Returns an error if the file doesn't exist - * or can't be opened. + * or can't be opened. */ -static errcode_t check_mntent_file(const char *mtab_file, const char *file, +static errcode_t check_mntent_file(const char *mtab_file, const char *file, int *mount_flags, char *mtpt, int mtlen) { - struct mntent *mnt; + struct mntent *mnt; struct stat st_buf; errcode_t retval = 0; dev_t file_dev=0, file_rdev=0; ino_t file_ino=0; - FILE *f; + FILE *f; int fd; *mount_flags = 0; @@ -103,7 +103,7 @@ static errcode_t check_mntent_file(const char *mtab_file, const char *file, } #ifndef __GNU__ /* The GNU hurd is deficient; what else is new? */ /* Validate the entry in case /etc/mtab is out of date */ - /* + /* * We need to be paranoid, because some broken distributions * (read: Slackware) don't initialize /etc/mtab before checking * all of the non-root filesystems on the disk. @@ -128,7 +128,7 @@ static errcode_t check_mntent_file(const char *mtab_file, const char *file, } #endif /* __GNU__ */ *mount_flags = EXT2_MF_MOUNTED; - + #ifdef MNTOPT_RO /* Check to see if the ro option is set */ if (hasmntopt(mnt, MNTOPT_RO)) @@ -145,7 +145,7 @@ static errcode_t check_mntent_file(const char *mtab_file, const char *file, */ if (!strcmp(mnt->mnt_dir, "/")) { is_root: -#define TEST_FILE "/.ismount-test-file" +#define TEST_FILE "/.ismount-test-file" *mount_flags |= EXT2_MF_ISROOT; fd = open(TEST_FILE, O_RDWR|O_CREAT); if (fd < 0) { @@ -184,7 +184,7 @@ static errcode_t check_mntent(const char *file, int *mount_flags, #endif /* MOUNTED */ retval = check_mntent_file(MOUNTED, file, mount_flags, mtpt, mtlen); return retval; -#else +#else *mount_flags = 0; return 0; #endif /* defined(MOUNTED) || defined(_PATH_MOUNTED) */ @@ -197,31 +197,31 @@ static errcode_t check_getmntinfo(const char *file, int *mount_flags, char *mtpt, int mtlen) { struct statfs *mp; - int len, n; - const char *s1; + int len, n; + const char *s1; char *s2; - n = getmntinfo(&mp, MNT_NOWAIT); - if (n == 0) + n = getmntinfo(&mp, MNT_NOWAIT); + if (n == 0) return errno; - len = sizeof(_PATH_DEV) - 1; - s1 = file; - if (strncmp(_PATH_DEV, s1, len) == 0) - s1 += len; - + len = sizeof(_PATH_DEV) - 1; + s1 = file; + if (strncmp(_PATH_DEV, s1, len) == 0) + s1 += len; + *mount_flags = 0; - while (--n >= 0) { - s2 = mp->f_mntfromname; - if (strncmp(_PATH_DEV, s2, len) == 0) { - s2 += len - 1; - *s2 = 'r'; - } - if (strcmp(s1, s2) == 0 || strcmp(s1, &s2[1]) == 0) { + while (--n >= 0) { + s2 = mp->f_mntfromname; + if (strncmp(_PATH_DEV, s2, len) == 0) { + s2 += len - 1; + *s2 = 'r'; + } + if (strcmp(s1, s2) == 0 || strcmp(s1, &s2[1]) == 0) { *mount_flags = EXT2_MF_MOUNTED; break; } - ++mp; + ++mp; } if (mtpt) strncpy(mtpt, mp->f_mntonname, mtlen); @@ -270,7 +270,7 @@ static int is_swap_device(const char *file) ret++; break; } -#endif /* __GNU__ */ +#endif /* __GNU__ */ } fclose(f); return ret; @@ -296,7 +296,7 @@ errcode_t ext2fs_check_mount_point(const char *device, int *mount_flags, } #ifdef HAVE_MNTENT_H return check_mntent(device, mount_flags, mtpt, mtlen); -#else +#else #ifdef HAVE_GETMNTINFO return check_getmntinfo(device, mount_flags, mtpt, mtlen); #else @@ -312,7 +312,7 @@ errcode_t ext2fs_check_mount_point(const char *device, int *mount_flags, /* * ext2fs_check_if_mounted() sets the mount_flags EXT2_MF_MOUNTED, * EXT2_MF_READONLY, and EXT2_MF_ROOT - * + * */ errcode_t ext2fs_check_if_mounted(const char *file, int *mount_flags) { @@ -324,7 +324,7 @@ int main(int argc, char **argv) { int retval, mount_flags; char mntpt[80]; - + if (argc < 2) { fprintf(stderr, "Usage: %s device\n", argv[0]); exit(1); @@ -347,12 +347,12 @@ int main(int argc, char **argv) if (mount_flags & EXT2_MF_READONLY) printf("\t%s is read-only.\n", argv[1]); - + if (mount_flags & EXT2_MF_ISROOT) printf("\t%s is the root filesystem.\n", argv[1]); if (mntpt[0]) printf("\t%s is mounted on %s.\n", argv[1], mntpt); - + exit(0); } #endif /* DEBUG */ |