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- /* Copyright (c) 1982 Regents of the University of California */
-
- static char sccsid[] = "@(#)readdir.c 4.3 8/8/82";
-
- #include <sys/types.h>
- #include <dir.h>
-
- /*
- * 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];
- };
-
- /*
- * 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 == 0) {
- dirp->dd_size = read(dirp->dd_fd, dirp->dd_buf,
- DIRBLKSIZ);
- if (dirp->dd_size <= 0) {
- dirp->dd_size = 0;
- return NULL;
- }
- }
- if (dirp->dd_loc >= dirp->dd_size) {
- dirp->dd_loc = 0;
- continue;
- }
- dp = (struct olddirect *)(dirp->dd_buf + dirp->dd_loc);
- 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_namlen = strlen(dir.d_name);
- dir.d_reclen = DIRBLKSIZ;
- return (&dir);
- }
- }
-