Squash commits for public release

libs/libc/termios/termios.c

@@ -0,0 +1,32 @@
+#include <stdint.h>
+#include <sys/ioctl.h>
+#include <termios.h>
+
+int tcgetpgrp(int fd)
+{
+    return ioctl(fd, TIOCGPGRP, 0);
+}
+
+int tcsetpgrp(int fd, pid_t pgid)
+{
+    return ioctl(fd, TIOCSPGRP, pgid);
+}
+
+int tcgetattr(int fd, termios_t* termios_p)
+{
+    return ioctl(0, TCGETS, (uintptr_t)termios_p);
+}
+
+int tcsetattr(int fd, int optional_actions, const termios_t* termios_p)
+{
+    if (optional_actions == TCSANOW) {
+        return ioctl(0, TCSETS, (uintptr_t)termios_p);
+    }
+    if (optional_actions == TCSADRAIN) {
+        return ioctl(0, TCSETSW, (uintptr_t)termios_p);
+    }
+    if (optional_actions == TCSAFLUSH) {
+        return ioctl(0, TCSETSF, (uintptr_t)termios_p);
+    }
+    return -1;
+}