Put back inline definitions if using an old API.

All these inlines were turned in to out of line definitions in L.
This brings us a step closer to being able to just use the current
bionic headers for the NDK, rather than having many old versions of
them.

Change-Id: Ie010bc727d78d3742abc577c70f6578db2e68625

libc/include/android/legacy_termios_inlines.h

@@ -0,0 +1,93 @@
+/*
+ * Copyright (C) 2015 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.
+ */
+
+#ifndef _ANDROID_LEGACY_TERMIOS_INLINES_H_
+#define _ANDROID_LEGACY_TERMIOS_INLINES_H_
+
+#include <linux/termios.h>
+#include <sys/cdefs.h>
+#include <sys/ioctl.h>
+#include <sys/types.h>
+
+__BEGIN_DECLS
+
+static __inline int tcgetattr(int fd, struct termios *s) {
+  return ioctl(fd, TCGETS, s);
+}
+
+static __inline int tcsetattr(int fd, int __opt, const struct termios *s) {
+  return ioctl(fd, __opt, (void *)s);
+}
+
+static __inline int tcflow(int fd, int action) {
+  return ioctl(fd, TCXONC, (void *)(intptr_t)action);
+}
+
+static __inline int tcflush(int fd, int __queue) {
+  return ioctl(fd, TCFLSH, (void *)(intptr_t)__queue);
+}
+
+static __inline pid_t tcgetsid(int fd) {
+  pid_t _pid;
+  return ioctl(fd, TIOCGSID, &_pid) ? (pid_t)-1 : _pid;
+}
+
+static __inline int tcsendbreak(int fd, int __duration) {
+  return ioctl(fd, TCSBRKP, (void *)(uintptr_t)__duration);
+}
+
+static __inline speed_t cfgetospeed(const struct termios *s) {
+  return (speed_t)(s->c_cflag & CBAUD);
+}
+
+static __inline int cfsetospeed(struct termios *s, speed_t speed) {
+  s->c_cflag = (s->c_cflag & ~CBAUD) | (speed & CBAUD);
+  return 0;
+}
+
+static __inline speed_t cfgetispeed(const struct termios *s) {
+  return (speed_t)(s->c_cflag & CBAUD);
+}
+
+static __inline int cfsetispeed(struct termios *s, speed_t speed) {
+  s->c_cflag = (s->c_cflag & ~CBAUD) | (speed & CBAUD);
+  return 0;
+}
+
+static __inline void cfmakeraw(struct termios *s) {
+  s->c_iflag &=
+      ~(IGNBRK | BRKINT | PARMRK | ISTRIP | INLCR | IGNCR | ICRNL | IXON);
+  s->c_oflag &= ~OPOST;
+  s->c_lflag &= ~(ECHO | ECHONL | ICANON | ISIG | IEXTEN);
+  s->c_cflag &= ~(CSIZE | PARENB);
+  s->c_cflag |= CS8;
+}
+
+__END_DECLS
+
+#endif /* _ANDROID_LEGACY_TERMIOS_INLINES_H_ */