diff options
Diffstat (limited to 'usr/src/lib/libbc/libc/gen/common/opendir.c')
-rw-r--r-- | usr/src/lib/libbc/libc/gen/common/opendir.c | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/usr/src/lib/libbc/libc/gen/common/opendir.c b/usr/src/lib/libbc/libc/gen/common/opendir.c new file mode 100644 index 0000000000..cf41897df2 --- /dev/null +++ b/usr/src/lib/libbc/libc/gen/common/opendir.c @@ -0,0 +1,74 @@ +/* + * CDDL HEADER START + * + * The contents of this file are subject to the terms of the + * Common Development and Distribution License, Version 1.0 only + * (the "License"). You may not use this file except in compliance + * with the License. + * + * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE + * or http://www.opensolaris.org/os/licensing. + * See the License for the specific language governing permissions + * and limitations under the License. + * + * When distributing Covered Code, include this CDDL HEADER in each + * file and include the License file at usr/src/OPENSOLARIS.LICENSE. + * If applicable, add the following below this CDDL HEADER, with the + * fields enclosed by brackets "[]" replaced with your own identifying + * information: Portions Copyright [yyyy] [name of copyright owner] + * + * CDDL HEADER END + */ +/* + * Copyright (c) 1995, by Sun Microsystems, Inc. + * All rights reserved. + */ + +#pragma ident "%Z%%M% %I% %E% SMI" + +#include <sys/param.h> +#include <sys/stat.h> +#include <dirent.h> +#include <errno.h> +#include <fcntl.h> + +/* + * open a directory. + */ +DIR * +opendir(name) + char *name; +{ + register DIR *dirp; + register int fd; + struct stat sb; + extern int errno; + extern char *malloc(); + extern int open(), close(), fstat(); + + if ((fd = open(name, O_RDONLY | O_NDELAY)) == -1) + return (NULL); + if (fstat(fd, &sb) == -1) { + (void) close(fd); + return (NULL); + } + if ((sb.st_mode & S_IFMT) != S_IFDIR) { + errno = ENOTDIR; + (void) close(fd); + return (NULL); + } + if (((dirp = (DIR *)malloc(sizeof(DIR))) == NULL) || + ((dirp->dd_buf = malloc(sb.st_blksize)) == NULL)) { + if (dirp) + free(dirp); + (void) close(fd); + return (NULL); + } + dirp->dd_fd = fd; + dirp->dd_loc = 0; + dirp->dd_size = 0; + dirp->dd_bsize = sb.st_blksize; + dirp->dd_off = 0; + (void) fcntl(fd, F_SETFD, FD_CLOEXEC); + return (dirp); +} |