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Diffstat (limited to '')
-rw-r--r-- | c/src/libfs/src/imfs/imfs_chown.c | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/c/src/libfs/src/imfs/imfs_chown.c b/c/src/libfs/src/imfs/imfs_chown.c new file mode 100644 index 0000000000..816294ee34 --- /dev/null +++ b/c/src/libfs/src/imfs/imfs_chown.c @@ -0,0 +1,52 @@ +/* + * IMFS_chown + * + * This routine is the implementation of the chown() system + * call for the IMFS. + * + * COPYRIGHT (c) 1989-1998. + * On-Line Applications Research Corporation (OAR). + * Copyright assigned to U.S. Government, 1994. + * + * The license and distribution terms for this file may be + * found in the file LICENSE in this distribution or at + * http://www.OARcorp.com/rtems/license.html. + * + * $Id$ + */ + +#include <errno.h> +#include "libio_.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 ) ) + set_errno_and_return_minus_one( EPERM ); +#endif + + jnode->st_uid = owner; + jnode->st_gid = group; + + IMFS_update_ctime( jnode ); + + return 0; +} |