diff options
Diffstat (limited to 'cpukit/libfs/src/imfs/imfs_chown.c')
-rw-r--r-- | cpukit/libfs/src/imfs/imfs_chown.c | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/cpukit/libfs/src/imfs/imfs_chown.c b/cpukit/libfs/src/imfs/imfs_chown.c new file mode 100644 index 0000000000..7f0c7b5688 --- /dev/null +++ b/cpukit/libfs/src/imfs/imfs_chown.c @@ -0,0 +1,56 @@ +/* + * IMFS_chown + * + * This routine is the implementation of the chown() system + * call for the IMFS. + * + * COPYRIGHT (c) 1989-1999. + * On-Line Applications Research Corporation (OAR). + * + * The license and distribution terms for this file may be + * found in the file LICENSE in this distribution or at + * http://www.rtems.com/license/LICENSE. + * + * $Id$ + */ + +#if HAVE_CONFIG_H +#include "config.h" +#endif + +#include <errno.h> +#include <rtems/libio_.h> +#include <rtems/seterr.h> +#include "imfs.h" + +int IMFS_chown( + rtems_filesystem_location_info_t *pathloc, /* IN */ + uid_t owner, /* IN */ + gid_t group /* IN */ +) +{ + IMFS_jnode_t *jnode; +#if defined(RTEMS_POSIX_API) + uid_t st_uid; +#endif + + jnode = (IMFS_jnode_t *) pathloc->node_access; + + /* + * Verify I am the owner of the node or the super user. + */ + +#if defined(RTEMS_POSIX_API) + st_uid = geteuid(); + + if ( ( st_uid != jnode->st_uid ) && ( st_uid != 0 ) ) + rtems_set_errno_and_return_minus_one( EPERM ); +#endif + + jnode->st_uid = owner; + jnode->st_gid = group; + + IMFS_update_ctime( jnode ); + + return 0; +} |