[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/termios/tcgetsid.c b/ap/build/uClibc/libc/termios/tcgetsid.c
new file mode 100644
index 0000000..b5da2e7
--- /dev/null
+++ b/ap/build/uClibc/libc/termios/tcgetsid.c
@@ -0,0 +1,63 @@
+/* Copyright (C) 1997, 1999 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. */
+
+#include <errno.h>
+#include <termios.h>
+#include <sys/ioctl.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+
+/* Return the session ID of FD. */
+pid_t
+tcgetsid (int fd)
+{
+ pid_t pgrp;
+ pid_t sid;
+#ifdef TIOCGSID
+ static smallint tiocgsid_does_not_work;
+
+ if (! tiocgsid_does_not_work)
+ {
+ int serrno = errno;
+
+ if (ioctl (fd, TIOCGSID, &sid) < 0)
+ {
+ if (errno == EINVAL)
+ {
+ tiocgsid_does_not_work = 1;
+ __set_errno (serrno);
+ }
+ else
+ return (pid_t) -1;
+ }
+ else
+ return (pid_t) sid;
+ }
+#endif
+
+ pgrp = tcgetpgrp (fd);
+ if (pgrp == -1)
+ return (pid_t) -1;
+
+ sid = getsid (pgrp);
+ if (sid == -1 && errno == ESRCH)
+ __set_errno (ENOTTY);
+
+ return sid;
+}