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Length: 822 (0x336)
Types: TextFile
Names: »telldir.c«
└─⟦3d0c2be1b⟧ Bits:30001254 ISODE-5.0 Tape
└─⟦eba4602b1⟧ »./isode-5.0.tar.Z«
└─⟦d3ac74d73⟧
└─⟦this⟧ »isode-5.0/dirent/telldir.c«
└─⟦2d1937cfd⟧ Bits:30007241 EUUGD22: P.P 5.0
└─⟦35176feda⟧ »EurOpenD22/isode/isode-6.tar.Z«
└─⟦de7628f85⟧
└─⟦this⟧ »isode-6.0/dirent/telldir.c«
/*
telldir -- report directory stream position
last edit: 25-Apr-1987 D A Gwyn
NOTE: 4.nBSD directory compaction makes seekdir() & telldir()
practically impossible to do right. Avoid using them!
*/
#include <sys/errno.h>
#include <sys/types.h>
#include "usr.dirent.h"
#ifndef GETDENTS
extern off_t lseek();
extern int errno;
#ifndef SEEK_CUR
#define SEEK_CUR 1
#endif
off_t
telldir( dirp ) /* return offset of next entry */
DIR *dirp; /* stream from opendir() */
{
if ( dirp == NULL || dirp->dd_buf == NULL )
{
errno = EFAULT;
return -1; /* invalid pointer */
}
if ( dirp->dd_loc < dirp->dd_size ) /* valid index */
return ((struct dirent *)&dirp->dd_buf[dirp->dd_loc])->d_off;
else /* beginning of next directory block */
return lseek( dirp->dd_fd, (off_t)0, SEEK_CUR );
}
#endif