[T106][ZXW-22]7520V3SCV2.01.01.02P42U09_VEC_V0.8_AP_VEC origin source commit
Change-Id: Ic6e05d89ecd62fc34f82b23dcf306c93764aec4b
diff --git a/ap/build/uClibc/libc/unistd/pathconf.c b/ap/build/uClibc/libc/unistd/pathconf.c
new file mode 100644
index 0000000..84f20ed
--- /dev/null
+++ b/ap/build/uClibc/libc/unistd/pathconf.c
@@ -0,0 +1,199 @@
+/* Copyright (C) 1991,1995,1996,1998,2000,2001,2003
+ Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+/* pathconf -- adjusted for busybox */
+
+/* It would be great it this could be implemented using fpathconf,
+ * but that doesn't work out very well (think FIFOs and sockets) */
+
+#include <errno.h>
+#include <stddef.h>
+#include <unistd.h>
+#include <limits.h>
+#include <fcntl.h>
+#include <sys/stat.h>
+#include <sys/statfs.h>
+
+extern __typeof(statfs) __libc_statfs;
+
+
+/* The Linux kernel headers mention this as a kind of generic value. */
+#ifndef LINK_MAX
+# define LINK_MAX 127
+#endif
+
+/* Get file-specific information about PATH. */
+long int
+pathconf (const char *path, int name)
+{
+ if (path[0] == '\0')
+ {
+ __set_errno (ENOENT);
+ return -1;
+ }
+
+ switch (name)
+ {
+ default:
+ __set_errno (EINVAL);
+ return -1;
+
+ case _PC_LINK_MAX:
+#ifdef LINK_MAX
+ return LINK_MAX;
+#else
+ return -1;
+#endif
+
+ case _PC_MAX_CANON:
+#ifdef MAX_CANON
+ return MAX_CANON;
+#else
+ return -1;
+#endif
+
+ case _PC_MAX_INPUT:
+#ifdef MAX_INPUT
+ return MAX_INPUT;
+#else
+ return -1;
+#endif
+
+ case _PC_NAME_MAX:
+#ifdef NAME_MAX
+ {
+ struct statfs buf;
+ int save_errno = errno;
+
+ if (__libc_statfs (path, &buf) < 0)
+ {
+ if (errno == ENOSYS)
+ {
+ errno = save_errno;
+ return NAME_MAX;
+ }
+ return -1;
+ }
+ else
+ {
+#ifdef _STATFS_F_NAMELEN
+ return buf.f_namelen;
+#else
+# ifdef _STATFS_F_NAME_MAX
+ return buf.f_name_max;
+# else
+ return NAME_MAX;
+# endif
+#endif
+ }
+ }
+#else
+ return -1;
+#endif
+
+ case _PC_PATH_MAX:
+#ifdef PATH_MAX
+ return PATH_MAX;
+#else
+ return -1;
+#endif
+
+ case _PC_PIPE_BUF:
+#ifdef PIPE_BUF
+ return PIPE_BUF;
+#else
+ return -1;
+#endif
+
+ case _PC_CHOWN_RESTRICTED:
+#ifdef _POSIX_CHOWN_RESTRICTED
+ return _POSIX_CHOWN_RESTRICTED;
+#else
+ return -1;
+#endif
+
+ case _PC_NO_TRUNC:
+#ifdef _POSIX_NO_TRUNC
+ return _POSIX_NO_TRUNC;
+#else
+ return -1;
+#endif
+
+ case _PC_VDISABLE:
+#ifdef _POSIX_VDISABLE
+ return _POSIX_VDISABLE;
+#else
+ return -1;
+#endif
+
+ case _PC_SYNC_IO:
+#ifdef _POSIX_SYNC_IO
+ return _POSIX_SYNC_IO;
+#else
+ return -1;
+#endif
+
+ case _PC_ASYNC_IO:
+#if defined _POSIX_ASYNC_IO && defined __UCLIBC_HAS_LFS__
+ {
+ /* AIO is only allowed on regular files and block devices. */
+ struct stat st;
+
+ if (stat (path, &st) < 0
+ || (! S_ISREG (st.st_mode) && ! S_ISBLK (st.st_mode)))
+ return -1;
+ else
+ return 1;
+ }
+#else
+ return -1;
+#endif
+
+ case _PC_PRIO_IO:
+#ifdef _POSIX_PRIO_IO
+ return _POSIX_PRIO_IO;
+#else
+ return -1;
+#endif
+
+ case _PC_SOCK_MAXBUF:
+#ifdef SOCK_MAXBUF
+ return SOCK_MAXBUF;
+#else
+ return -1;
+#endif
+
+ case _PC_FILESIZEBITS:
+#ifdef FILESIZEBITS
+ return FILESIZEBITS;
+#else
+ /* We let platforms with larger file sizes overwrite this value. */
+ return 32;
+#endif
+
+ /* Be lazy -- skip these */
+ case _PC_REC_INCR_XFER_SIZE:
+ case _PC_REC_MAX_XFER_SIZE:
+ case _PC_REC_MIN_XFER_SIZE:
+ case _PC_REC_XFER_ALIGN:
+ case _PC_ALLOC_SIZE_MIN:
+ case _PC_SYMLINK_MAX:
+ return -1;
+ }
+}