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 8cc93814b..a777d70f4 100644 --- a/coreutils/df.c +++ b/coreutils/df.c | |||
| @@ -43,6 +43,50 @@ df(char* device, const char * mountPoint) | |||
| 43 | return 0; | 43 | return 0; |
| 44 | } | 44 | } |
| 45 | 45 | ||
| 46 | /* | ||
| 47 | * Given a block device, find the mount table entry if that block device | ||
| 48 | * is mounted. | ||
| 49 | * | ||
| 50 | * Given any other file (or directory), find the mount table entry for its | ||
| 51 | * filesystem. | ||
| 52 | */ | ||
| 53 | extern struct mntent * | ||
| 54 | findMountPoint(const char* name, const char* table) | ||
| 55 | { | ||
| 56 | struct stat s; | ||
| 57 | dev_t mountDevice; | ||
| 58 | FILE * mountTable; | ||
| 59 | struct mntent * mountEntry; | ||
| 60 | |||
| 61 | if ( stat(name, &s) != 0 ) | ||
| 62 | return 0; | ||
| 63 | |||
| 64 | if ( (s.st_mode & S_IFMT) == S_IFBLK ) | ||
| 65 | mountDevice = s.st_rdev; | ||
| 66 | else | ||
| 67 | mountDevice = s.st_dev; | ||
| 68 | |||
| 69 | |||
| 70 | if ( (mountTable = setmntent(table, "r")) == 0 ) | ||
| 71 | return 0; | ||
| 72 | |||
| 73 | while ( (mountEntry = getmntent(mountTable)) != 0 ) { | ||
| 74 | if ( strcmp(name, mountEntry->mnt_dir) == 0 | ||
| 75 | || strcmp(name, mountEntry->mnt_fsname) == 0 ) /* String match. */ | ||
| 76 | break; | ||
| 77 | if ( stat(mountEntry->mnt_fsname, &s) == 0 | ||
| 78 | && s.st_rdev == mountDevice ) /* Match the device. */ | ||
| 79 | break; | ||
| 80 | if ( stat(mountEntry->mnt_dir, &s) == 0 | ||
| 81 | && s.st_dev == mountDevice ) /* Match the directory's mount point. */ | ||
| 82 | break; | ||
| 83 | } | ||
| 84 | endmntent(mountTable); | ||
| 85 | return mountEntry; | ||
| 86 | } | ||
| 87 | |||
| 88 | |||
| 89 | |||
| 46 | extern int | 90 | extern int |
| 47 | df_main(int argc, char * * argv) | 91 | df_main(int argc, char * * argv) |
| 48 | { | 92 | { |
| @@ -90,47 +134,3 @@ df_main(int argc, char * * argv) | |||
| 90 | 134 | ||
| 91 | 135 | ||
| 92 | 136 | ||
| 93 | |||
| 94 | /* | ||
| 95 | * Given a block device, find the mount table entry if that block device | ||
| 96 | * is mounted. | ||
| 97 | * | ||
| 98 | * Given any other file (or directory), find the mount table entry for its | ||
| 99 | * filesystem. | ||
| 100 | */ | ||
| 101 | extern struct mntent * | ||
| 102 | findMountPoint(const char* name, const char* table) | ||
| 103 | { | ||
| 104 | struct stat s; | ||
| 105 | dev_t mountDevice; | ||
| 106 | FILE * mountTable; | ||
| 107 | struct mntent * mountEntry; | ||
| 108 | |||
| 109 | if ( stat(name, &s) != 0 ) | ||
| 110 | return 0; | ||
| 111 | |||
| 112 | if ( (s.st_mode & S_IFMT) == S_IFBLK ) | ||
| 113 | mountDevice = s.st_rdev; | ||
| 114 | else | ||
| 115 | mountDevice = s.st_dev; | ||
| 116 | |||
| 117 | |||
| 118 | if ( (mountTable = setmntent(table, "r")) == 0 ) | ||
| 119 | return 0; | ||
| 120 | |||
| 121 | while ( (mountEntry = getmntent(mountTable)) != 0 ) { | ||
| 122 | if ( strcmp(name, mountEntry->mnt_dir) == 0 | ||
| 123 | || strcmp(name, mountEntry->mnt_fsname) == 0 ) /* String match. */ | ||
| 124 | break; | ||
| 125 | if ( stat(mountEntry->mnt_fsname, &s) == 0 | ||
| 126 | && s.st_rdev == mountDevice ) /* Match the device. */ | ||
| 127 | break; | ||
| 128 | if ( stat(mountEntry->mnt_dir, &s) == 0 | ||
| 129 | && s.st_dev == mountDevice ) /* Match the directory's mount point. */ | ||
| 130 | break; | ||
| 131 | } | ||
| 132 | endmntent(mountTable); | ||
| 133 | return mountEntry; | ||
| 134 | } | ||
| 135 | |||
| 136 | |||
