forked from Imagelibrary/rtems
0a95800a58
The pathconf_limits_and_options field of rtems_filesystem_mount_table_entry_t is now a const pointer to reduce the read-write memory demands of file system instances.
85 lines
2.0 KiB
C
85 lines
2.0 KiB
C
/*
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* fpathconf() - POSIX 1003.1b - 5.7.1 - Configurable Pathname Varables
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*
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* COPYRIGHT (c) 1989-2011.
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* On-Line Applications Research Corporation (OAR).
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*
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* The license and distribution terms for this file may be
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* found in the file LICENSE in this distribution or at
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* http://www.rtems.com/license/LICENSE.
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*/
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#if HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <rtems/libio_.h>
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#include <rtems/seterr.h>
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#include <unistd.h>
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#include <errno.h>
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long fpathconf(
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int fd,
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int name
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)
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{
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long return_value;
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rtems_libio_t *iop;
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const rtems_filesystem_limits_and_options_t *the_limits;
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rtems_libio_check_fd(fd);
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iop = rtems_libio_iop(fd);
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rtems_libio_check_is_open(iop);
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/*
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* Now process the information request.
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*/
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the_limits = iop->pathinfo.mt_entry->pathconf_limits_and_options;
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switch ( name ) {
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case _PC_LINK_MAX:
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return_value = the_limits->link_max;
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break;
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case _PC_MAX_CANON:
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return_value = the_limits->max_canon;
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break;
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case _PC_MAX_INPUT:
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return_value = the_limits->max_input;
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break;
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case _PC_NAME_MAX:
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return_value = the_limits->name_max;
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break;
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case _PC_PATH_MAX:
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return_value = the_limits->path_max;
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break;
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case _PC_PIPE_BUF:
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return_value = the_limits->pipe_buf;
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break;
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case _PC_CHOWN_RESTRICTED:
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return_value = the_limits->posix_chown_restrictions;
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break;
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case _PC_NO_TRUNC:
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return_value = the_limits->posix_no_trunc;
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break;
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case _PC_VDISABLE:
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return_value = the_limits->posix_vdisable;
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break;
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case _PC_ASYNC_IO:
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return_value = the_limits->posix_async_io;
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break;
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case _PC_PRIO_IO:
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return_value = the_limits->posix_prio_io;
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break;
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case _PC_SYNC_IO:
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return_value = the_limits->posix_sync_io;
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break;
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default:
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rtems_set_errno_and_return_minus_one( EINVAL );
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break;
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}
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return return_value;
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}
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