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/*
* fgetflags.c - Get a file flags on an ext2 file system
*
* Copyright (C) 1993, 1994 Remy Card <card@masi.ibp.fr>
* Laboratoire MASI, Institut Blaise Pascal
* Universite Pierre et Marie Curie (Paris VI)
*
* This file can be redistributed under the terms of the GNU Library General
* Public License
*/
/*
* History:
* 93/10/30 - Creation
*/
#if HAVE_ERRNO_H
#include <errno.h>
#endif
#if HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <sys/types.h>
#include <sys/stat.h>
#if HAVE_EXT2_IOCTLS
#include <fcntl.h>
#include <sys/ioctl.h>
#endif
#include "e2p.h"
#ifdef O_LARGEFILE
#define OPEN_FLAGS (O_RDONLY|O_NONBLOCK|O_LARGEFILE)
#else
#define OPEN_FLAGS (O_RDONLY|O_NONBLOCK)
#endif
int fgetflags (const char * name, unsigned long * flags)
{
struct stat buf;
#if HAVE_STAT_FLAGS && !(APPLE_DARWIN && HAVE_EXT2_IOCTLS)
if (stat (name, &buf) == -1)
return -1;
*flags = 0;
#ifdef UF_IMMUTABLE
if (buf.st_flags & UF_IMMUTABLE)
*flags |= EXT2_IMMUTABLE_FL;
#endif
#ifdef UF_APPEND
if (buf.st_flags & UF_APPEND)
*flags |= EXT2_APPEND_FL;
#endif
#ifdef UF_NODUMP
if (buf.st_flags & UF_NODUMP)
*flags |= EXT2_NODUMP_FL;
#endif
return 0;
#else
#if HAVE_EXT2_IOCTLS
int fd, r, f, save_errno = 0;
if (!stat(name, &buf) &&
!S_ISREG(buf.st_mode) && !S_ISDIR(buf.st_mode)) {
goto notsupp;
}
#if !APPLE_DARWIN
fd = open (name, OPEN_FLAGS);
if (fd == -1)
return -1;
r = ioctl (fd, EXT2_IOC_GETFLAGS, &f);
if (r == -1)
save_errno = errno;
*flags = f;
close (fd);
if (save_errno)
errno = save_errno;
return r;
#else
f = -1;
save_errno = syscall(SYS_fsctl, name, EXT2_IOC_GETFLAGS, &f, 0);
*flags = f;
return (save_errno);
#endif
#endif /* HAVE_EXT2_IOCTLS */
#endif
notsupp:
errno = EOPNOTSUPP;
return -1;
}
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