diff options
Diffstat (limited to 'coreutils/df.c')
| -rw-r--r-- | coreutils/df.c | 88 |
1 files changed, 44 insertions, 44 deletions
diff --git a/coreutils/df.c b/coreutils/df.c index 8cc9381..a777d70 100644 --- a/coreutils/df.c +++ b/coreutils/df.c @@ -43,6 +43,50 @@ df(char* device, const char * mountPoint) return 0; } +/* + * Given a block device, find the mount table entry if that block device + * is mounted. + * + * Given any other file (or directory), find the mount table entry for its + * filesystem. + */ +extern struct mntent * +findMountPoint(const char* name, const char* table) +{ + struct stat s; + dev_t mountDevice; + FILE * mountTable; + struct mntent * mountEntry; + + if ( stat(name, &s) != 0 ) + return 0; + + if ( (s.st_mode & S_IFMT) == S_IFBLK ) + mountDevice = s.st_rdev; + else + mountDevice = s.st_dev; + + + if ( (mountTable = setmntent(table, "r")) == 0 ) + return 0; + + while ( (mountEntry = getmntent(mountTable)) != 0 ) { + if ( strcmp(name, mountEntry->mnt_dir) == 0 + || strcmp(name, mountEntry->mnt_fsname) == 0 ) /* String match. */ + break; + if ( stat(mountEntry->mnt_fsname, &s) == 0 + && s.st_rdev == mountDevice ) /* Match the device. */ + break; + if ( stat(mountEntry->mnt_dir, &s) == 0 + && s.st_dev == mountDevice ) /* Match the directory's mount point. */ + break; + } + endmntent(mountTable); + return mountEntry; +} + + + extern int df_main(int argc, char * * argv) { @@ -90,47 +134,3 @@ df_main(int argc, char * * argv) - -/* - * Given a block device, find the mount table entry if that block device - * is mounted. - * - * Given any other file (or directory), find the mount table entry for its - * filesystem. - */ -extern struct mntent * -findMountPoint(const char* name, const char* table) -{ - struct stat s; - dev_t mountDevice; - FILE * mountTable; - struct mntent * mountEntry; - - if ( stat(name, &s) != 0 ) - return 0; - - if ( (s.st_mode & S_IFMT) == S_IFBLK ) - mountDevice = s.st_rdev; - else - mountDevice = s.st_dev; - - - if ( (mountTable = setmntent(table, "r")) == 0 ) - return 0; - - while ( (mountEntry = getmntent(mountTable)) != 0 ) { - if ( strcmp(name, mountEntry->mnt_dir) == 0 - || strcmp(name, mountEntry->mnt_fsname) == 0 ) /* String match. */ - break; - if ( stat(mountEntry->mnt_fsname, &s) == 0 - && s.st_rdev == mountDevice ) /* Match the device. */ - break; - if ( stat(mountEntry->mnt_dir, &s) == 0 - && s.st_dev == mountDevice ) /* Match the directory's mount point. */ - break; - } - endmntent(mountTable); - return mountEntry; -} - - |