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Length: 1019 (0x3fb)
Types: TextFile
Names: »readdir.c«
└─⟦3d0c2be1b⟧ Bits:30001254 ISODE-5.0 Tape
└─⟦eba4602b1⟧ »./isode-5.0.tar.Z«
└─⟦d3ac74d73⟧
└─⟦this⟧ »isode-5.0/dirent/readdir.c«
└─⟦2d1937cfd⟧ Bits:30007241 EUUGD22: P.P 5.0
└─⟦35176feda⟧ »EurOpenD22/isode/isode-6.tar.Z«
└─⟦de7628f85⟧
└─⟦this⟧ »isode-6.0/dirent/readdir.c«
/*
readdir -- read next entry from a directory stream
last edit: 25-Apr-1987 D A Gwyn
*/
#include <sys/errno.h>
#include <sys/types.h>
#include "usr.dirent.h"
#ifndef GETDENTS
extern int getdents(); /* SVR3 system call, or emulation */
extern int errno;
#ifndef NULL
#define NULL 0
#endif
struct dirent *
readdir( dirp )
register DIR *dirp; /* stream from opendir() */
{
register struct dirent *dp; /* -> directory data */
if ( dirp == NULL || dirp->dd_buf == NULL )
{
errno = EFAULT;
return NULL; /* invalid pointer */
}
do {
if ( dirp->dd_loc >= dirp->dd_size ) /* empty or obsolete */
dirp->dd_loc = dirp->dd_size = 0;
if ( dirp->dd_size == 0 /* need to refill buffer */
&& (dirp->dd_size =
getdents( dirp->dd_fd, dirp->dd_buf, (unsigned)DIRBUF )
) <= 0
)
return NULL; /* EOF or error */
dp = (struct dirent *)&dirp->dd_buf[dirp->dd_loc];
dirp->dd_loc += dp->d_reclen;
}
while ( dp->d_ino == 0L ); /* don't rely on getdents() */
return dp;
}
#endif