1 /* 2 * Copyright (c) 1983 Regents of the University of California. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms are permitted 6 * provided that the above copyright notice and this paragraph are 7 * duplicated in all such forms and that any documentation, 8 * advertising materials, and other materials related to such 9 * distribution and use acknowledge that the software was developed 10 * by the University of California, Berkeley. The name of the 11 * University may not be used to endorse or promote products derived 12 * from this software without specific prior written permission. 13 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR 14 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED 15 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. 16 */ 17 18 #if defined(LIBC_SCCS) && !defined(lint) 19 static char sccsid[] = "@(#)telldir.c 5.5 (Berkeley) 07/10/89"; 20 #endif /* LIBC_SCCS and not lint */ 21 22 #include <sys/param.h> 23 #include <dirent.h> 24 25 /* 26 * return a pointer into a directory 27 */ 28 long 29 telldir(dirp) 30 DIR *dirp; 31 { 32 register int index; 33 register struct ddloc *lp; 34 35 if ((lp = (struct ddloc *)malloc(sizeof(struct ddloc))) == NULL) 36 return (-1); 37 index = dirp->dd_loccnt++; 38 lp->loc_index = index; 39 lp->loc_seek = dirp->dd_seek; 40 lp->loc_loc = dirp->dd_loc; 41 lp->loc_next = dirp->dd_hash[LOCHASH(index)]; 42 dirp->dd_hash[LOCHASH(index)] = lp; 43 return (index); 44 } 45