67 lines
1.4 KiB
C
67 lines
1.4 KiB
C
/* $Header$ */
|
|
#include <sys/types.h>
|
|
#include <sys/dir.h>
|
|
|
|
#ifndef __BSD4_2
|
|
/*
|
|
* read an old stlye directory entry and present it as a new one
|
|
*/
|
|
#define ODIRSIZ 14
|
|
|
|
struct olddirect {
|
|
ino_t od_ino;
|
|
char od_name[ODIRSIZ];
|
|
};
|
|
#else
|
|
#define olddirect direct
|
|
#endif
|
|
|
|
/*
|
|
* get next entry in a directory.
|
|
*/
|
|
struct direct *readdir(dirp)
|
|
register DIR *dirp;
|
|
{
|
|
register struct olddirect *dp;
|
|
static struct direct dir;
|
|
|
|
for (;;) {
|
|
if (dirp->dd_loc == -1) {
|
|
dirp->dd_size = read(dirp->dd_fd, dirp->dd_buf,
|
|
dirp->dd_bsize);
|
|
if (dirp->dd_size <= 0) {
|
|
dirp->dd_size = 0;
|
|
return NULL;
|
|
}
|
|
dirp->dd_loc = 0;
|
|
#ifdef __BSD4_2
|
|
if (! ((struct direct *) dirp->dd_buf)->d_ino) {
|
|
dirp->dd_loc = ((struct direct *)dirp->dd_buf)->d_reclen;
|
|
}
|
|
#endif
|
|
}
|
|
if (dirp->dd_loc >= dirp->dd_size) {
|
|
dirp->dd_loc = -1;
|
|
continue;
|
|
}
|
|
dp = (struct olddirect *) (dirp->dd_buf + dirp->dd_loc);
|
|
#ifndef __BSD4_2
|
|
dirp->dd_loc += sizeof (struct olddirect);
|
|
if (dp->od_ino == 0)
|
|
continue;
|
|
dir.d_ino = dp->od_ino;
|
|
strncpy(dir.d_name, dp->od_name, ODIRSIZ);
|
|
dir.d_name[ODIRSIZ] = '\0'; /* insure null termination */
|
|
dir.d_reclen = DIRSIZ(&dir);
|
|
dir.d_namlen = strlen(dir.d_name);
|
|
#else
|
|
dirp->dd_loc += dp->d_reclen;
|
|
dir.d_ino = dp->d_ino;
|
|
strcpy(dir.d_name, dp->d_name);
|
|
dir.d_reclen = dp->d_reclen;
|
|
dir.d_namlen = dp->d_namlen;
|
|
#endif
|
|
return &dir;
|
|
}
|
|
}
|