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gcc
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ixemulsrc.lha
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ixemul
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library
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fchown.c
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1996-12-11
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/*
* This file is part of ixemul.library for the Amiga.
* Copyright (C) 1991, 1992 Markus M. Wild
* Portions Copyright (C) 1994 Rafael W. Luebbert
* Portions Copyright (C) 1996 Jeff Shepherd
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#define _KERNEL
#include "ixemul.h"
#include "kprintf.h"
#include <stdlib.h>
int
fchown(int fd, uid_t uid, gid_t gid)
{
struct file *f = u.u_ofile[fd];
struct stat stb;
if (fd >= 0 && fd < NOFILE && f)
{
if (syscall (SYS_fstat, fd, &stb) == -1) return -1;
if (stb.st_mode & 0600)
{
if (syscall (SYS_fchmod, fd, stb.st_mode & ~0176000) == -1) return -1;
}
if (uid == (uid_t)(-1)) uid = stb.st_uid;
if (gid == (gid_t)(-1)) gid = stb.st_gid;
f->f_stb.st_uid = uid;
f->f_stb.st_gid = gid;
f->f_stb_dirty |= FSDF_OWNER;
return 0;
}
errno = EBADF;
KPRINTF (("&errno = %lx, errno = %ld\n", &errno, errno));
return -1;
}