RTEMS 4.6.99.3 On-Line Library

chmod

RTEMS Filesystem Design Guide

4.3: chmod

File:

chmod.c

Processing:

This routine is layered on the open(), fchmod() and close() functions. As long as the standard interpretation of the mode_t value is maintained, this routine should not need modification to support other filesystems.

Development Comments:

The routine first determines if the selected file can be open with read/write access. This is required to allow modification of the mode associated with the selected path.

The fchmod() function is used to actually change the mode of the path using the integer file descriptor returned by the open() function.

After mode modification, the open file descriptor is closed.

RTEMS Filesystem Design Guide