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amiga-clib2/library/stat_fchmod.c
Olaf Barthel 91028c63bc - Lost the __not_a_number and __infinity variables, including the
code which initialized them.

- Reading/changing the errno variable is no longer done directly, but
  involves accessor functions.

- References to the HUGE_VAL quantity now involve an accessor function, too.

- Changed the manner in which the __huge_val constant is initialized by
  the __math_init() function.


git-svn-id: file:///Users/olsen/Code/migration-svn-zu-git/logical-line-staging/clib2/trunk@14824 87f5fb63-7c3d-0410-a384-fd976d0f7a62
2005-02-03 16:56:20 +00:00

130 lines
3.5 KiB
C

/*
* $Id: stat_fchmod.c,v 1.4 2005-02-03 16:56:15 obarthel Exp $
*
* :ts=4
*
* Portable ISO 'C' (1994) runtime library for the Amiga computer
* Copyright (c) 2002-2005 by Olaf Barthel <olsen@sourcery.han.de>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Neither the name of Olaf Barthel nor the names of contributors
* may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _STAT_HEADERS_H
#include "stat_headers.h"
#endif /* _STAT_HEADERS_H */
/****************************************************************************/
/* The following is not part of the ISO 'C' (1994) standard. */
/****************************************************************************/
int
fchmod(int file_descriptor, mode_t mode)
{
DECLARE_UTILITYBASE();
struct file_hook_message message;
ULONG protection;
int result = -1;
struct fd * fd;
ENTER();
SHOWVALUE(file_descriptor);
SHOWVALUE(mode);
assert( UtilityBase != NULL );
assert( file_descriptor >= 0 && file_descriptor < __num_fd );
assert( __fd[file_descriptor] != NULL );
assert( FLAG_IS_SET(__fd[file_descriptor]->fd_Flags,FDF_IN_USE) );
if(__check_abort_enabled)
__check_abort();
fd = __get_file_descriptor(file_descriptor);
if(fd == NULL)
{
__set_errno(EBADF);
goto out;
}
protection = 0;
if(FLAG_IS_SET(mode,S_IRUSR))
SET_FLAG(protection,FIBF_READ);
if(FLAG_IS_SET(mode,S_IWUSR))
{
SET_FLAG(protection,FIBF_WRITE);
SET_FLAG(protection,FIBF_DELETE);
}
if(FLAG_IS_SET(mode,S_IXUSR))
SET_FLAG(protection,FIBF_EXECUTE);
if(FLAG_IS_SET(mode,S_IRGRP))
SET_FLAG(protection,FIBF_GRP_READ);
if(FLAG_IS_SET(mode,S_IWGRP))
{
SET_FLAG(protection,FIBF_GRP_WRITE);
SET_FLAG(protection,FIBF_GRP_DELETE);
}
if(FLAG_IS_SET(mode,S_IXGRP))
SET_FLAG(protection,FIBF_GRP_EXECUTE);
if(FLAG_IS_SET(mode,S_IROTH))
SET_FLAG(protection,FIBF_OTR_READ);
if(FLAG_IS_SET(mode,S_IWOTH))
{
SET_FLAG(protection,FIBF_OTR_WRITE);
SET_FLAG(protection,FIBF_OTR_DELETE);
}
if(FLAG_IS_SET(mode,S_IXOTH))
SET_FLAG(protection,FIBF_OTR_EXECUTE);
SHOWMSG("calling the hook");
message.action = file_hook_action_change_attributes;
message.attributes = protection ^ (FIBF_READ|FIBF_WRITE|FIBF_EXECUTE|FIBF_DELETE);
assert( fd->fd_Hook != NULL );
CallHookPkt(fd->fd_Hook,fd,&message);
result = message.result;
__set_errno(message.error);
out:
RETURN(result);
return(result);
}