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Diffstat (limited to '')
-rw-r--r-- | c/src/exec/libcsupport/src/chdir.c | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/c/src/exec/libcsupport/src/chdir.c b/c/src/exec/libcsupport/src/chdir.c new file mode 100644 index 0000000000..4acbc8cfe0 --- /dev/null +++ b/c/src/exec/libcsupport/src/chdir.c @@ -0,0 +1,50 @@ +/* + * chdir() - POSIX 1003.1b - 5.2.1 - Change Current Working Directory + * + * 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 <rtems.h> + +#include <unistd.h> +#include <errno.h> + +#include "libio_.h" + +int chdir( + const char *pathname +) +{ + rtems_filesystem_location_info_t loc; + int result; + + /* + * Get the node where we wish to go. + */ + + result = rtems_filesystem_evaluate_path( pathname, 0, &loc, TRUE ); + if ( result != 0 ) + return -1; + + /* + * Verify you can change directory into this node. + */ + + if ( !loc.ops->node_type ) + set_errno_and_return_minus_one( ENOTSUP ); + + if ( (*loc.ops->node_type)( &loc ) != RTEMS_FILESYSTEM_DIRECTORY ) + set_errno_and_return_minus_one( ENOTDIR ); + + rtems_filesystem_current = loc; + + return 0; +} |