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-rw-r--r--libc/unistd/pathconf.c273
1 files changed, 0 insertions, 273 deletions
diff --git a/libc/unistd/pathconf.c b/libc/unistd/pathconf.c
deleted file mode 100644
index 032f918..0000000
--- a/libc/unistd/pathconf.c
+++ /dev/null
@@ -1,273 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
- * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-#include <pathconf.h>
-#include <sys/vfs.h>
-#include <sys/limits.h>
-#include <linux/ext2_fs.h>
-#include <linux/ext3_fs.h>
-#include <errno.h>
-
-/* these may not be defined yet by our headers */
-#ifndef _POSIX_VDISABLE
-#define _POSIX_VDISABLE -1
-#endif
-
-#ifndef _POSIX_SYNC_IO
-#define _POSIX_SYNC_IO -1
-#endif
-
-#ifndef _POSIX_PRIO_IO
-#define _POSIX_PRIO_IO -1
-#endif
-
-#ifndef _POSIX_ASYNC_IO
-#define _POSIX_ASYNC_IO -1
-#endif
-
-
-static long
-__filesizebits( struct statfs* s )
-{
-#define EOL_MAGIC 0x0000U
-
- /* list of known 64-bit aware filesystems */
- static const uint32_t known64[] = {
- EXT2_SUPER_MAGIC,
- UFS_MAGIC,
- REISERFS_SUPER_MAGIC,
- XFS_SUPER_MAGIC,
- SMB_SUPER_MAGIC,
- UDF_SUPER_MAGIC,
- JFS_SUPER_MAGIC,
- NTFS_SB_MAGIC,
- VXFS_SUPER_MAGIC,
- EOL_MAGIC
- };
- int nn = 0;
-
- for (;;) {
- if ( known64[nn] == EOL_MAGIC )
- return 32;
-
- if ( known64[nn] == s->f_type )
- return 64;
- }
-}
-
-
-static long
-__link_max( struct statfs* s )
-{
- /* constant values were taken from official kernel headers.
- * I don't think this justified bringing in <linux/minix_fs.h> et al
- * into our cleaned-up kernel three
- */
- static const struct { uint32_t type; int max; } knownMax[] =
- {
- { EXT2_SUPER_MAGIC, EXT2_LINK_MAX },
- { EXT3_SUPER_MAGIC, EXT3_LINK_MAX },
- { MINIX_SUPER_MAGIC, 250 },
- { MINIX2_SUPER_MAGIC, 65530 },
- { REISERFS_SUPER_MAGIC, 0xffff - 1000 },
- { UFS_MAGIC, 32000 },
- { EOL_MAGIC, 0 }
- };
- int nn = 0;
-
- for (;;) {
- if ( knownMax[nn].type == EOL_MAGIC )
- return LINK_MAX;
-
- if ( knownMax[nn].type == s->f_type )
- return knownMax[nn].max;
- }
- return LINK_MAX;
-}
-
-static long
-__2_symlinks( struct statfs* s )
-{
- /* list of know filesystems that don't support symlinks */
- static const uint32_t knownNoSymlinks[] = {
- ADFS_SUPER_MAGIC, BFS_MAGIC, CRAMFS_MAGIC,
- EFS_SUPER_MAGIC, MSDOS_SUPER_MAGIC, NTFS_SB_MAGIC,
- QNX4_SUPER_MAGIC,
- EOL_MAGIC
- };
- int nn = 0;
-
- for (;;) {
- if (knownNoSymlinks[nn] == 0)
- return 1;
- if (knownNoSymlinks[nn] == s->f_type)
- return 0;
- }
-}
-
-static long
-__name_max( struct statfs* s )
-{
- return s->f_namelen;
-}
-
-long
-pathconf(const char *path, int name)
-{
- struct statfs buf;
- int ret = statfs( path, &buf );
-
- if (ret < 0)
- return -1;
-
- switch (name) {
- case _PC_FILESIZEBITS:
- return __filesizebits(&buf);
-
- case _PC_LINK_MAX:
- return __link_max(&buf);
-
- case _PC_MAX_CANON:
- return MAX_CANON;
-
- case _PC_MAX_INPUT:
- return MAX_INPUT;
-
- case _PC_NAME_MAX:
- return __name_max(&buf);
-
- case _PC_PATH_MAX:
- return PATH_MAX;
-
- case _PC_PIPE_BUF:
- return PIPE_BUF;
-
- case _PC_2_SYMLINKS:
- return __2_symlinks(&buf);
-
-#if 0 /* don't know what to do there, the specs are really weird */
- case _PC_ALLOC_SIZE_MIN:
- case _PC_REC_INCR_XFER_SIZE:
- case _PC_REC_MAX_XFER_SIZE:
- case _PC_REC_MIN_XFER_SIZE:
- case _PC_REC_XFER_ALIGN:
-#endif
-
- case _PC_SYMLINK_MAX:
- return -1; /* no limit */
-
- case _PC_CHOWN_RESTRICTED:
- return _POSIX_CHOWN_RESTRICTED;
-
- case _PC_NO_TRUNC:
- return _POSIX_NO_TRUNC;
-
- case _PC_VDISABLE:
- return _POSIX_VDISABLE;
-
- case _PC_ASYNC_IO:
- return _POSIX_ASYNC_IO;
-
- case _PC_PRIO_IO:
- return _POSIX_PRIO_IO;
-
- case _PC_SYNC_IO:
- return _POSIX_SYNC_IO;
-
- default:
- errno = EINVAL;
- return -1;
- }
-}
-
-long fpathconf(int fildes, int name)
-{
- struct statfs buf;
- int ret = fstatfs(fildes, &buf);
-
- if (ret < 0)
- return -1;
-
- switch (name) {
- case _PC_FILESIZEBITS:
- return __filesizebits(&buf);
-
- case _PC_LINK_MAX:
- return __link_max(&buf);
-
- case _PC_MAX_CANON:
- return MAX_CANON;
-
- case _PC_MAX_INPUT:
- return MAX_INPUT;
-
- case _PC_NAME_MAX:
- return __name_max(&buf);
-
- case _PC_PATH_MAX:
- return PATH_MAX;
-
- case _PC_PIPE_BUF:
- return PIPE_BUF;
-
- case _PC_2_SYMLINKS:
- return __2_symlinks(&buf);
-
-#if 0 /* don't know what to do there, the specs are really weird */
- case _PC_ALLOC_SIZE_MIN:
- case _PC_REC_INCR_XFER_SIZE:
- case _PC_REC_MAX_XFER_SIZE:
- case _PC_REC_MIN_XFER_SIZE:
- case _PC_REC_XFER_ALIGN:
-#endif
-
- case _PC_SYMLINK_MAX:
- return -1; /* no limit */
-
- case _PC_CHOWN_RESTRICTED:
- return _POSIX_CHOWN_RESTRICTED;
-
- case _PC_NO_TRUNC:
- return _POSIX_NO_TRUNC;
-
- case _PC_VDISABLE:
- return _POSIX_VDISABLE;
-
- case _PC_ASYNC_IO:
- return _POSIX_ASYNC_IO;
-
- case _PC_PRIO_IO:
- return _POSIX_PRIO_IO;
-
- case _PC_SYNC_IO:
- return _POSIX_SYNC_IO;
-
- default:
- errno = EINVAL;
- return -1;
- }
-}
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