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https://github.com/adtools/clib2.git
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a9c8cdc554
initialization code for the stdin/stdout/stderr streams and out of the program parameter setup. - The current program name is now set up in the stdlib initialization function. - Simplified the machine test code; moved the FPU check into the math initialization code. - Added more safety checks to verify that file descriptor file handles are valid. git-svn-id: file:///Users/olsen/Code/migration-svn-zu-git/logical-line-staging/clib2/trunk@14864 87f5fb63-7c3d-0410-a384-fd976d0f7a62
143 lines
3.5 KiB
C
143 lines
3.5 KiB
C
/*
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* $Id: mount_fstatfs.c,v 1.9 2005-03-07 11:16:43 obarthel Exp $
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*
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* :ts=4
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*
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* Portable ISO 'C' (1994) runtime library for the Amiga computer
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* Copyright (c) 2002-2005 by Olaf Barthel <olsen@sourcery.han.de>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* - Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* - Neither the name of Olaf Barthel nor the names of contributors
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* may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _STDLIB_NULL_POINTER_CHECK_H
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#include "stdlib_null_pointer_check.h"
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#endif /* _STDLIB_NULL_POINTER_CHECK_H */
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/****************************************************************************/
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#ifndef _MOUNT_HEADERS_H
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#include "mount_headers.h"
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#endif /* _MOUNT_HEADERS_H */
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/****************************************************************************/
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/* The following is not part of the ISO 'C' (1994) standard. */
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/****************************************************************************/
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int
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fstatfs(int file_descriptor, struct statfs *buf)
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{
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D_S(struct InfoData,id);
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BPTR parent_dir = ZERO;
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int result = -1;
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struct fd * fd = NULL;
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LONG success;
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ENTER();
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SHOWVALUE(file_descriptor);
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SHOWPOINTER(buf);
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assert( buf != NULL );
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if(__check_abort_enabled)
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__check_abort();
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#if defined(CHECK_FOR_NULL_POINTERS)
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{
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if(buf == NULL)
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{
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SHOWMSG("invalid buffer parameter");
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__set_errno(EFAULT);
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goto out;
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}
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}
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#endif /* CHECK_FOR_NULL_POINTERS */
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assert( file_descriptor >= 0 && file_descriptor < __num_fd );
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assert( __fd[file_descriptor] != NULL );
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assert( FLAG_IS_SET(__fd[file_descriptor]->fd_Flags,FDF_IN_USE) );
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fd = __get_file_descriptor(file_descriptor);
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if(fd == NULL)
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{
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__set_errno(EBADF);
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goto out;
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}
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__fd_lock(fd);
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if(FLAG_IS_SET(fd->fd_Flags,FDF_IS_SOCKET))
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{
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__set_errno(EINVAL);
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goto out;
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}
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if(fd->fd_DefaultFile == ZERO)
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{
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__set_errno(EBADF);
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goto out;
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}
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PROFILE_OFF();
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parent_dir = __safe_parent_of_file_handle(fd->fd_DefaultFile);
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PROFILE_ON();
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if(parent_dir == ZERO)
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{
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SHOWMSG("couldn't find parent directory");
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__set_errno(__translate_io_error_to_errno(IoErr()));
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goto out;
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}
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PROFILE_OFF();
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success = Info(parent_dir,id);
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PROFILE_ON();
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if(NO success)
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{
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SHOWMSG("couldn't get info on drive");
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__set_errno(__translate_io_error_to_errno(IoErr()));
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goto out;
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}
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__convert_info_to_statfs(id,buf);
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result = 0;
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out:
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__fd_unlock(fd);
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UnLock(parent_dir);
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RETURN(result);
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return(result);
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}
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