dosfs: Support ctime and mtime

Implement ctime and mtime updates according to POSIX.  The ctime is
mapped to the FAT create time and date.  The mtime is mapped to the FAT
last modified time and date.  For the atime use the mtime for
simplicity.

1 files changed, 37 insertions, 0 deletions

diff --git a/cpukit/libfs/src/dosfs/fat_file.h b/cpukit/libfs/src/dosfs/fat_file.h
index 79af62a398..b162d8a0fd 100644
--- a/cpukit/libfs/src/dosfs/fat_file.h
+++ b/cpukit/libfs/src/dosfs/fat_file.h
@@ -88,6 +88,7 @@ typedef struct fat_file_fd_s
     fat_dir_pos_t    dir_pos;
     uint8_t          flags;
     fat_file_map_t   map;
+    time_t           ctime;
     time_t           mtime;
 
 } fat_file_fd_t;
@@ -139,6 +140,22 @@ fat_construct_key(
               ((pos->ofs >> 5) & (FAT_DIRENTRIES_PER_SEC512 - 1)) );
 }
 
+static inline void fat_file_set_ctime(fat_file_fd_t *fat_fd, time_t t)
+{
+    fat_fd->ctime = t;
+}
+
+static inline void fat_file_set_mtime(fat_file_fd_t *fat_fd, time_t t)
+{
+    fat_fd->mtime = t;
+}
+
+static inline void fat_file_set_ctime_mtime(fat_file_fd_t *fat_fd, time_t t)
+{
+    fat_fd->ctime = t;
+    fat_fd->mtime = t;
+}
+
 /* Prototypes for "fat-file" operations */
 int
 fat_file_open(fat_fs_info_t                         *fs_info,
@@ -192,6 +209,26 @@ void
 fat_file_mark_removed(fat_fs_info_t                        *fs_info,
                       fat_file_fd_t                        *fat_fd);
 
+int
+fat_file_size(fat_fs_info_t                        *fs_info,
+              fat_file_fd_t                        *fat_fd);
+
+int
+fat_file_write_first_cluster_num(fat_fs_info_t *fs_info,
+                                 fat_file_fd_t *fat_fd);
+
+int
+fat_file_write_file_size(fat_fs_info_t *fs_info,
+                         fat_file_fd_t *fat_fd);
+
+int
+fat_file_write_time_and_date(fat_fs_info_t *fs_info,
+                             fat_file_fd_t *fat_fd);
+
+int
+fat_file_update(fat_fs_info_t *fs_info,
+                fat_file_fd_t *fat_fd);
+
 #ifdef __cplusplus
 }
 #endif