1da2e3ebdSchin /*********************************************************************** 2da2e3ebdSchin * * 3da2e3ebdSchin * This software is part of the ast package * 4*3e14f97fSRoger A. Faulkner * Copyright (c) 1985-2010 AT&T Intellectual Property * 5da2e3ebdSchin * and is licensed under the * 6da2e3ebdSchin * Common Public License, Version 1.0 * 77c2fbfb3SApril Chin * by AT&T Intellectual Property * 8da2e3ebdSchin * * 9da2e3ebdSchin * A copy of the License is available at * 10da2e3ebdSchin * http://www.opensource.org/licenses/cpl1.0.txt * 11da2e3ebdSchin * (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) * 12da2e3ebdSchin * * 13da2e3ebdSchin * Information and Software Systems Research * 14da2e3ebdSchin * AT&T Research * 15da2e3ebdSchin * Florham Park NJ * 16da2e3ebdSchin * * 17da2e3ebdSchin * Glenn Fowler <gsf@research.att.com> * 18da2e3ebdSchin * David Korn <dgk@research.att.com> * 19da2e3ebdSchin * Phong Vo <kpv@research.att.com> * 20da2e3ebdSchin * * 21da2e3ebdSchin ***********************************************************************/ 22da2e3ebdSchin #pragma prototyped 23da2e3ebdSchin /* 24da2e3ebdSchin * readdir 25da2e3ebdSchin * 26da2e3ebdSchin * read from directory stream 27da2e3ebdSchin * 28da2e3ebdSchin * NOTE: directory entries must fit within DIRBLKSIZ boundaries 29da2e3ebdSchin */ 30da2e3ebdSchin 31da2e3ebdSchin #include "dirlib.h" 32da2e3ebdSchin 33da2e3ebdSchin #if _dir_ok 34da2e3ebdSchin 35da2e3ebdSchin NoN(readdir) 36da2e3ebdSchin 37da2e3ebdSchin #else 38da2e3ebdSchin 39da2e3ebdSchin struct dirent* 40da2e3ebdSchin readdir(register DIR* dirp) 41da2e3ebdSchin { 42da2e3ebdSchin register struct dirent* dp; 43da2e3ebdSchin 44da2e3ebdSchin for (;;) 45da2e3ebdSchin { 46da2e3ebdSchin if (dirp->dd_loc >= dirp->dd_size) 47da2e3ebdSchin { 48da2e3ebdSchin if (dirp->dd_size < 0) return(0); 49da2e3ebdSchin dirp->dd_loc = 0; 50da2e3ebdSchin if ((dirp->dd_size = getdents(dirp->dd_fd, dirp->dd_buf, DIRBLKSIZ)) <= 0) 51da2e3ebdSchin return(0); 52da2e3ebdSchin } 53da2e3ebdSchin dp = (struct dirent*)((char*)dirp->dd_buf + dirp->dd_loc); 54da2e3ebdSchin if (dp->d_reclen <= 0) return(0); 55da2e3ebdSchin dirp->dd_loc += dp->d_reclen; 56da2e3ebdSchin if (dp->d_fileno) return(dp); 57da2e3ebdSchin } 58da2e3ebdSchin /*NOTREACHED*/ 59da2e3ebdSchin } 60da2e3ebdSchin 61da2e3ebdSchin #endif 62