diff options
Diffstat (limited to 'cpukit/libcsupport/src/fpathconf.c')
-rw-r--r-- | cpukit/libcsupport/src/fpathconf.c | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/cpukit/libcsupport/src/fpathconf.c b/cpukit/libcsupport/src/fpathconf.c new file mode 100644 index 0000000000..accaae1585 --- /dev/null +++ b/cpukit/libcsupport/src/fpathconf.c @@ -0,0 +1,87 @@ +/* + * fpathconf() - POSIX 1003.1b - 5.7.1 - Configurable Pathname Varables + * + * 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 <rtems/libio_.h> +#include <rtems/seterr.h> + +#include <unistd.h> +#include <errno.h> + +long fpathconf( + int fd, + int name +) +{ + long return_value; + rtems_libio_t *iop; + rtems_filesystem_limits_and_options_t *the_limits; + + rtems_libio_check_fd(fd); + iop = rtems_libio_iop(fd); + rtems_libio_check_is_open(iop); + rtems_libio_check_permissions(iop, LIBIO_FLAGS_READ); + + /* + * Now process the information request. + */ + + the_limits = &iop->pathinfo.mt_entry->pathconf_limits_and_options; + + switch ( name ) { + case _PC_LINK_MAX: + return_value = the_limits->link_max; + break; + case _PC_MAX_CANON: + return_value = the_limits->max_canon; + break; + case _PC_MAX_INPUT: + return_value = the_limits->max_input; + break; + case _PC_NAME_MAX: + return_value = the_limits->name_max; + break; + case _PC_PATH_MAX: + return_value = the_limits->path_max; + break; + case _PC_PIPE_BUF: + return_value = the_limits->pipe_buf; + break; + case _PC_CHOWN_RESTRICTED: + return_value = the_limits->posix_chown_restrictions; + break; + case _PC_NO_TRUNC: + return_value = the_limits->posix_no_trunc; + break; + case _PC_VDISABLE: + return_value = the_limits->posix_vdisable; + break; + case _PC_ASYNC_IO: + return_value = the_limits->posix_async_io; + break; + case _PC_PRIO_IO: + return_value = the_limits->posix_prio_io; + break; + case _PC_SYNC_IO: + return_value = the_limits->posix_sync_io; + break; + default: + rtems_set_errno_and_return_minus_one( EINVAL ); + break; + } + + return return_value; +} |