/* Distributed Checksum Clearinghouses
 *
 * wrapper for fstatfs() or fstatvfs() to get file system type
 *
 * --C-LICENSE--
 * $Revision: 1.5 $
 */


/* help the configure script decide if fstatfs() works */
#ifdef DCC_TEST_FSTATFS
#undef DCC_FSTATFS_COMPAT
#define DCC_FSTATFS_COMPAT DCC_TEST_FSTATFS
#define DCC_UNIX 1
#include "dcc_types.h"

#else
#include "srvr_defs.h"
#endif



#define DCC_FSTATFS_COMPAT_BSD	    1
#define DCC_FSTATFS_COMPAT_Linux    2
#define DCC_FSTATFS_COMPAT_SunOS    3

#undef EXPANDED

#ifndef DCC_FSTATFS_COMPAT
#define EXPANDED 1
u_char
istmpfs(int fd DCC_UNUSED, const char *nm DCC_UNUSED)
{
	return 0;
}
#endif


#if !defined(EXPANDED) && DCC_FSTATFS_COMPAT == DCC_FSTATFS_COMPAT_BSD
#define EXPANDED 1
#include <sys/param.h>
#include <sys/mount.h>

u_char
istmpfs(int fd, const char *nm)
{
	struct statfs buf;

	if (0 > fstatfs(fd, &buf)) {
		dcc_error_msg("fstatfs(%s): %s", nm, ERROR_STR());
		return 0;
	}

	return !strncmp(buf.f_fstypename, "tmpfs", sizeof(buf.f_fstypename));
}
#endif



#if !defined(EXPANDED) && DCC_FSTATFS_COMPAT == DCC_FSTATFS_COMPAT_Linux
#define EXPANDED 1
#include <sys/vfs.h>

u_char
istmpfs(int fd, const char *nm)
{
	struct statfs buf;

	if (0 > fstatfs(fd, &buf)) {
		dcc_error_msg("fstatfs(%s): %s", nm, ERROR_STR());
		return 0;
	}

	return (buf.f_type == 0x01021994);
}
#endif


#if !defined(EXPANDED) && DCC_FSTATFS_COMPAT == DCC_FSTATFS_COMPAT_SunOS
#define EXPANDED 1
#include <sys/mntent.h>
#include <sys/statvfs.h>

u_char
istmpfs(int fd, const char *nm)
{
	struct statvfs buf;

	if (0 > fstatvfs(fd, &buf)) {
		dcc_error_msg("fstatvfs(%s): %s", nm, ERROR_STR());
		return 0;
	}

	return !strncmp(buf.f_basetype, MNTTYPE_TMPFS, sizeof(buf.f_basetype));
}
#endif


#ifndef EXPANDED
#error "bad configure value for DCC_FSTATFS_COMPAT"
#endif