[T106][ZXW-22]7520V3SCV2.01.01.02P42U09_VEC_V0.8_AP_VEC origin source commit
Change-Id: Ic6e05d89ecd62fc34f82b23dcf306c93764aec4b
diff --git a/ap/libc/glibc/glibc-2.22/socket/opensock.c b/ap/libc/glibc/glibc-2.22/socket/opensock.c
new file mode 100644
index 0000000..31f247e
--- /dev/null
+++ b/ap/libc/glibc/glibc-2.22/socket/opensock.c
@@ -0,0 +1,70 @@
+/* Copyright (C) 1999-2015 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, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <stdio.h>
+#include <sys/socket.h>
+#include <bits/libc-lock.h>
+
+/* Return a socket of any type. The socket can be used in subsequent
+ ioctl calls to talk to the kernel. */
+int internal_function
+__opensock (void)
+{
+ /* Cache the last AF that worked, to avoid many redundant calls to
+ socket(). */
+ static int sock_af = -1;
+ int fd = -1;
+ __libc_lock_define_initialized (static, lock);
+
+ if (sock_af != -1)
+ {
+ fd = __socket (sock_af, SOCK_DGRAM, 0);
+ if (fd != -1)
+ return fd;
+ }
+
+ __libc_lock_lock (lock);
+
+ if (sock_af != -1)
+ fd = __socket (sock_af, SOCK_DGRAM, 0);
+
+ if (fd == -1)
+ {
+#ifdef AF_INET
+ fd = __socket (sock_af = AF_INET, SOCK_DGRAM, 0);
+#endif
+#ifdef AF_INET6
+ if (fd < 0)
+ fd = __socket (sock_af = AF_INET6, SOCK_DGRAM, 0);
+#endif
+#ifdef AF_IPX
+ if (fd < 0)
+ fd = __socket (sock_af = AF_IPX, SOCK_DGRAM, 0);
+#endif
+#ifdef AF_AX25
+ if (fd < 0)
+ fd = __socket (sock_af = AF_AX25, SOCK_DGRAM, 0);
+#endif
+#ifdef AF_APPLETALK
+ if (fd < 0)
+ fd = __socket (sock_af = AF_APPLETALK, SOCK_DGRAM, 0);
+#endif
+ }
+
+ __libc_lock_unlock (lock);
+ return fd;
+}