Return to readdir.c CVS log

Up to [CSRG BSD Unix] / 43BSDTahoe / usr.bin / uucp / LIBNDIR

Annotation of 43BSDTahoe/usr.bin/uucp/LIBNDIR/readdir.c, revision 1.1.1.1

1.1       root        1: static char sccsid[] = "@(#)readdir.c 4.3 8/8/82";
                      2: 
                      3: #include <sys/types.h>
                      4: #include <ndir.h>
                      5: 
                      6: /*
                      7:  * read an old stlye directory entry and present it as a new one
                      8:  */
                      9: #define        ODIRSIZ 14
                     10: 
                     11: struct olddirect {
                     12:        ino_t   od_ino;
                     13:        char    od_name[ODIRSIZ];
                     14: };
                     15: 
                     16: /*
                     17:  * get next entry in a directory.
                     18:  */
                     19: struct direct *
                     20: readdir(dirp)
                     21:        register DIR *dirp;
                     22: {
                     23:        register struct olddirect *dp;
                     24:        static struct direct dir;
                     25: 
                     26:        for (;;) {
                     27:                if (dirp->dd_loc == 0) {
                     28:                        dirp->dd_size = read(dirp->dd_fd, dirp->dd_buf,
                     29:                            DIRBLKSIZ);
                     30:                        if (dirp->dd_size <= 0)
                     31:                                return NULL;
                     32:                }
                     33:                if (dirp->dd_loc >= dirp->dd_size) {
                     34:                        dirp->dd_loc = 0;
                     35:                        continue;
                     36:                }
                     37:                dp = (struct olddirect *)(dirp->dd_buf + dirp->dd_loc);
                     38:                dirp->dd_loc += sizeof(struct olddirect);
                     39:                if (dp->od_ino == 0)
                     40:                        continue;
                     41:                dir.d_ino = dp->od_ino;
                     42:                strncpy(dir.d_name, dp->od_name, ODIRSIZ);
                     43:                dir.d_name[ODIRSIZ] = '\0'; /* insure null termination */
                     44:                dir.d_namlen = strlen(dir.d_name);
                     45:                dir.d_reclen = DIRBLKSIZ;
                     46:                return (&dir);
                     47:        }
                     48: }

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.