Annotation of sys/lib/libsa/readdir.c, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: readdir.c,v 1.8 2006/10/11 20:56:59 deraadt Exp $ */
! 2:
! 3: /*
! 4: * Copyright (c) 1996 Michael Shalayeff
! 5: * All rights reserved.
! 6: *
! 7: * Redistribution and use in source and binary forms, with or without
! 8: * modification, are permitted provided that the following conditions
! 9: * are met:
! 10: * 1. Redistributions of source code must retain the above copyright
! 11: * notice, this list of conditions and the following disclaimer.
! 12: * 2. Redistributions in binary form must reproduce the above copyright
! 13: * notice, this list of conditions and the following disclaimer in the
! 14: * documentation and/or other materials provided with the distribution.
! 15: *
! 16: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
! 17: * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
! 18: * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
! 19: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
! 20: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
! 21: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
! 22: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
! 23: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
! 24: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
! 25: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
! 26: * SUCH DAMAGE.
! 27: *
! 28: */
! 29:
! 30: #ifndef NO_READDIR
! 31:
! 32: #include <sys/types.h>
! 33: #include <sys/stat.h>
! 34: #define _KERNEL
! 35: #include <sys/fcntl.h>
! 36: #undef _KERNEL
! 37: #include "stand.h"
! 38:
! 39:
! 40: int
! 41: opendir(char *name)
! 42: {
! 43: struct stat sb;
! 44: int fd;
! 45:
! 46: if (stat(name, &sb) < 0)
! 47: return -1;
! 48:
! 49: if (!S_ISDIR(sb.st_mode)) {
! 50: errno = ENOTDIR;
! 51: return -1;
! 52: }
! 53:
! 54: /* XXX rewind needed for some dirs */
! 55: #ifdef __INTERNAL_LIBSA_CREAD
! 56: if ((fd = oopen(name, O_RDONLY)) >= 0)
! 57: olseek(fd, 0, 0);
! 58: #else
! 59: if ((fd = open(name, O_RDONLY)) >= 0)
! 60: lseek(fd, 0, SEEK_SET);
! 61: #endif
! 62:
! 63: return fd;
! 64: }
! 65:
! 66: int
! 67: readdir(int fd, char *dest)
! 68: {
! 69: struct open_file *f = &files[fd];
! 70:
! 71: if (fd < 0 || fd >= SOPEN_MAX ||
! 72: !((f = &files[fd])->f_flags & F_READ)) {
! 73: errno = EBADF;
! 74: return (-1);
! 75: }
! 76:
! 77: if (f->f_flags & F_RAW) {
! 78: errno = EOPNOTSUPP;
! 79: return (-1);
! 80: }
! 81: if ((errno = (f->f_ops->readdir)(f, dest)))
! 82: return (-1);
! 83:
! 84: return 0;
! 85: }
! 86:
! 87: void
! 88: closedir(int fd)
! 89: {
! 90: #ifdef __INTERNAL_LIBSA_CREAD
! 91: oclose(fd);
! 92: #else
! 93: close(fd);
! 94: #endif
! 95: }
! 96:
! 97: #endif /* NO_READDIR */
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