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Add bidirectional redirection to shell command execution function (Ctrl-t R and --exec option)

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The "shell command execution feature" previously only supported the
ability to transfer a command's stdout and stderr to a device.

To support bidirectional commands, a feature will be added to connect
input from a device to the command's stdin.

Since some communication commands (sz, rz) require stderr to be kept
local, a feature will also be added to not transfer stderr to a device
if the command string begins with a '?'.

On Linux, you can terminate a running command by pressing Ctrl-t R again
while the command is running (this uses the command /usr/bin/pkill
internally).
This commit is contained in:
yabu76 2026-01-18 15:39:12 +09:00
parent 321494b4e6
commit 445a21b807
4 changed files with 131 additions and 22 deletions
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11
src/tty.c
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@ -175,7 +175,7 @@ char key_hit = 0xff;
const char* device_name = NULL;
GList *device_list = NULL;
static struct termios tio, tio_raw, tio_old, stdout_new, stdout_old, stdin_new, stdin_old;
static unsigned long rx_total = 0, tx_total = 0;
unsigned long rx_total = 0, tx_total = 0;
static bool connected = false;
static bool standard_baudrate = true;
static void (*printchar)(char c);
@ -557,6 +557,15 @@ void *tty_stdin_input_thread(void *arg)
tio_printf("Flushed data I/O buffers");
tcflush(device_fd, TCIOFLUSH);
break;
#if defined(__linux__)
case KEY_SHIFT_R:
if (state == STATE_EXEC_SHELL_COMMAND)
{
tio_printf("Terminated shell command");
terminate_shell_command();
}
break;
#endif
default:
break;
}