diff options
| author | Stefan Hajnoczi <stefanha@redhat.com> | 2013-11-14 11:54:16 +0100 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2014-01-22 12:07:17 +0100 |
| commit | 13401ba0b982024b62a99388032bbb889dc98b43 (patch) | |
| tree | 9a66543a386882143f938c9702d0a0d5c60f63a4 | |
| parent | 0150cd81cf608b93778a067189829f354fe27e4b (diff) | |
osdep: add qemu_set_tty_echo()
Using stdin with readline.c requires disabling echo and line buffering.
Add a portable wrapper to set the terminal attributes under Linux and
Windows.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
| -rw-r--r-- | include/qemu/osdep.h | 2 | ||||
| -rw-r--r-- | util/oslib-posix.c | 18 | ||||
| -rw-r--r-- | util/oslib-win32.c | 19 |
3 files changed, 39 insertions, 0 deletions
diff --git a/include/qemu/osdep.h b/include/qemu/osdep.h index b3e2b6d8ea..eac7172bcb 100644 --- a/include/qemu/osdep.h +++ b/include/qemu/osdep.h @@ -240,4 +240,6 @@ static inline void qemu_init_auxval(char **envp) { } void qemu_init_auxval(char **envp); #endif +void qemu_set_tty_echo(int fd, bool echo); + #endif diff --git a/util/oslib-posix.c b/util/oslib-posix.c index e00a44c86f..f5c401646f 100644 --- a/util/oslib-posix.c +++ b/util/oslib-posix.c @@ -47,6 +47,9 @@ extern int daemon(int, int); # define QEMU_VMALLOC_ALIGN getpagesize() #endif +#include <termios.h> +#include <unistd.h> + #include <glib/gprintf.h> #include "config-host.h" @@ -251,3 +254,18 @@ qemu_get_local_state_pathname(const char *relative_pathname) return g_strdup_printf("%s/%s", CONFIG_QEMU_LOCALSTATEDIR, relative_pathname); } + +void qemu_set_tty_echo(int fd, bool echo) +{ + struct termios tty; + + tcgetattr(fd, &tty); + + if (echo) { + tty.c_lflag |= ECHO | ECHONL | ICANON | IEXTEN; + } else { + tty.c_lflag &= ~(ECHO | ECHONL | ICANON | IEXTEN); + } + + tcsetattr(fd, TCSANOW, &tty); +} diff --git a/util/oslib-win32.c b/util/oslib-win32.c index 776ccfaaf0..50be0440f2 100644 --- a/util/oslib-win32.c +++ b/util/oslib-win32.c @@ -189,3 +189,22 @@ qemu_get_local_state_pathname(const char *relative_pathname) return g_strdup_printf("%s" G_DIR_SEPARATOR_S "%s", base_path, relative_pathname); } + +void qemu_set_tty_echo(int fd, bool echo) +{ + HANDLE handle = (HANDLE)_get_osfhandle(fd); + DWORD dwMode = 0; + + if (handle == INVALID_HANDLE_VALUE) { + return; + } + + GetConsoleMode(handle, &dwMode); + + if (echo) { + SetConsoleMode(handle, dwMode | ENABLE_ECHO_INPUT | ENABLE_LINE_INPUT); + } else { + SetConsoleMode(handle, + dwMode & ~(ENABLE_ECHO_INPUT | ENABLE_LINE_INPUT)); + } +} |