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Diffstat (limited to '')
-rw-r--r-- | cpukit/libcsupport/src/fstat.c | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/cpukit/libcsupport/src/fstat.c b/cpukit/libcsupport/src/fstat.c new file mode 100644 index 0000000000..82d144dd2c --- /dev/null +++ b/cpukit/libcsupport/src/fstat.c @@ -0,0 +1,94 @@ +/* + * fstat() - POSIX 1003.1b 5.6.2 - Get File Status + * + * 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 <sys/stat.h> +#include <unistd.h> +#include <string.h> + +#include "libio_.h" + +int fstat( + int fd, + struct stat *sbuf +) +{ + rtems_libio_t *iop; + + /* + * Check to see if we were passed a valid pointer. + */ + + if ( !sbuf ) + set_errno_and_return_minus_one( EFAULT ); + + /* + * Zero out the stat structure so the various support + * versions of stat don't have to. + */ + + memset( sbuf, 0, sizeof(struct stat) ); + + /* + * If this file descriptor is mapped to an external set of handlers, + * then pass the request on to them. + */ + + if (rtems_file_descriptor_type(fd)) { + switch (rtems_file_descriptor_type (fd)) { + case RTEMS_FILE_DESCRIPTOR_TYPE_FILE: + break; + + case RTEMS_FILE_DESCRIPTOR_TYPE_SOCKET: +#if !defined(__GO32__) + sbuf->st_mode = S_IFSOCK; + break; +#endif + + default: + set_errno_and_return_minus_one( EBADF ); + } + } + + /* + * Now process the stat() request. + */ + + iop = rtems_libio_iop( fd ); + rtems_libio_check_fd( fd ); + + if ( !iop->handlers->fstat ) + set_errno_and_return_minus_one( ENOTSUP ); + + return (*iop->handlers->fstat)( &iop->pathinfo, sbuf ); +} + +/* + * _fstat_r + * + * This is the Newlib dependent reentrant version of fstat(). + */ + +#if defined(RTEMS_NEWLIB) + +#include <reent.h> + +int _fstat_r( + struct _reent *ptr, + int fd, + struct stat *buf +) +{ + return fstat( fd, buf ); +} +#endif |