mc/lib/fs.h
Andrew Borodin 32bffa8890 Ticket #2516: Fix build failure on DragonFly BSD
DragonFly BSD doesn't provide MAXNAMLEN macro to define size of d_name
member of dirent structure. NAME_MAX is used if MAXNAMLEN is not
provided by OS.

Signed-off-by: Andrew Borodin <aborodin@vmail.ru>
2011-04-07 13:32:40 +04:00

98 lines
2.0 KiB
C

/** \file fs.h
* \brief Header: fs compatibility definitions
*/
/* Include file to use opendir/closedir/readdir */
#ifndef MC_FS_H
#define MC_FS_H
#include <sys/types.h>
#include <unistd.h>
#include <sys/stat.h>
#include <dirent.h>
/*** typedefs(not structures) and defined constants **********************************************/
/* Replacement for permission bits missing in sys/stat.h */
#ifndef S_ISLNK
#define S_ISLNK(x) 0
#endif
#ifndef S_ISSOCK
#define S_ISSOCK(x) 0
#endif
#ifndef S_ISFIFO
#define S_ISFIFO(x) 0
#endif
#ifndef S_ISCHR
#define S_ISCHR(x) 0
#endif
#ifndef S_ISBLK
#define S_ISBLK(x) 0
#endif
/* Door is something that only exists on Solaris */
#ifndef S_ISDOOR
#define S_ISDOOR(x) 0
#endif
/* Special named files are widely used in QNX6 */
#ifndef S_ISNAM
#define S_ISNAM(x) 0
#endif
#ifndef PATH_MAX
#ifdef _POSIX_VERSION
#define PATH_MAX _POSIX_PATH_MAX
#else
#ifdef MAXPATHLEN
#define PATH_MAX MAXPATHLEN
#else
#define PATH_MAX 1024
#endif
#endif
#endif
#ifndef MAXPATHLEN
#define MC_MAXPATHLEN 4096
#else
#define MC_MAXPATHLEN MAXPATHLEN
#endif
/* unistd.h defines _POSIX_VERSION on POSIX.1 systems. */
#define NLENGTH(dirent) (strlen ((dirent)->d_name))
#define DIRENT_LENGTH_COMPUTED 1
/* DragonFlyBSD doesn't provide MAXNAMLEN macro */
#ifndef MAXNAMLEN
#define MAXNAMLEN NAME_MAX
#endif
#define MC_MAXFILENAMELEN MAXNAMLEN
/*** enums ***************************************************************************************/
/*** structures declarations (and typedefs of structures)*****************************************/
/*** global variables defined in .c file *********************************************************/
/*** declarations of public functions ************************************************************/
/*** inline functions ****************************************************************************/
static inline void
compute_namelen (struct dirent *dent __attribute__ ((unused)))
{
#ifdef DIRENT_LENGTH_COMPUTED
return;
#else
dent->d_namlen = strlen (dent);
#endif
}
#endif