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/*
opendir -- C library extension routine
last edit: 09-Jul-1983 D A Gwyn
*/
#include <dir.h>
#include <sys/types.h>
#include <sys/stat.h>
#ifdef BRL
#define open _open /* avoid emulation */
#endif
extern char *malloc();
extern int open(), close(), fstat();
#define NULL 0
DIR *
opendir( filename )
char *filename; /* name of directory */
{
register DIR *dirp; /* -> malloc'ed storage */
register int fd; /* file descriptor for read */
struct stat sbuf; /* result of fstat() */
if ( (fd = open( filename, 0 )) < 0 )
return NULL;
if ( fstat( fd, &sbuf ) < 0
|| (sbuf.st_mode & S_IFMT) != S_IFDIR
|| (dirp = (DIR *)malloc( sizeof(DIR) )) == NULL
) {
(void)close( fd );
return NULL; /* bad luck today */
}
dirp->dd_fd = fd;
dirp->dd_loc = dirp->dd_size = 0; /* refill needed */
return dirp;
}
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