aio: add tty settings support (via termios)

Enough to make serial ports work and support raw and cooked input/output

Signed-off-by: Steve Bennett <steveb@workware.net.au>

1 files changed, 58 insertions, 1 deletions

diff --git a/jim-aio.c b/jim-aio.c
index f36acdd..e8af2f3 100644
--- a/jim-aio.c
+++ b/jim-aio.c
@@ -68,6 +68,10 @@
 #include <openssl/err.h>
 #endif
 
+#ifdef HAVE_TERMIOS_H
+#include <jim-tty.h>
+#endif
+
 #include "jim-eventloop.h"
 #include "jim-subcmd.h"
 
@@ -490,7 +494,6 @@ static void JimAioDelProc(Jim_Interp *interp, void *privData)
         SSL_free(af->ssl);
     }
 #endif
-
     if (!(af->openFlags & AIO_KEEPOPEN)) {
         fclose(af->fp);
     }
@@ -1207,6 +1210,51 @@ static int aio_cmd_unlock(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
 }
 #endif /* JIM_BOOTSTRAP */
 
+#if defined(HAVE_TERMIOS_H) && !defined(JIM_BOOTSTRAP)
+static int aio_cmd_tty(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
+{
+    AioFile *af = Jim_CmdPrivData(interp);
+    Jim_Obj *dictObjPtr;
+    int ret;
+
+    if (argc == 0) {
+        /* get the current settings as a dictionary */
+        dictObjPtr = Jim_GetTtySettings(interp, af->fd);
+        if (dictObjPtr == NULL) {
+            JimAioSetError(interp, NULL);
+            return JIM_ERR;
+        }
+        Jim_SetResult(interp, dictObjPtr);
+        return JIM_OK;
+    }
+
+    if (argc > 1) {
+        /* Convert name value arguments to a dictionary */
+        dictObjPtr = Jim_NewListObj(interp, argv, argc);
+    }
+    else {
+        /* The settings are already given as a list */
+        dictObjPtr = argv[0];
+    }
+    Jim_IncrRefCount(dictObjPtr);
+
+    if (Jim_ListLength(interp, dictObjPtr) % 2) {
+        /* Must be a valid dictionary */
+        Jim_DecrRefCount(interp, dictObjPtr);
+        return -1;
+    }
+
+    ret = Jim_SetTtySettings(interp, af->fd, dictObjPtr);
+    if (ret < 0) {
+        JimAioSetError(interp, NULL);
+        ret = JIM_ERR;
+    }
+    Jim_DecrRefCount(interp, dictObjPtr);
+
+    return ret;
+}
+#endif /* JIM_BOOTSTRAP */
+
 static const jim_subcmd_type aio_command_table[] = {
     {   "read",
         "?-nonewline? ?len?",
@@ -1397,6 +1445,15 @@ static const jim_subcmd_type aio_command_table[] = {
         /* Description: Relase a lock. */
     },
 #endif /* JIM_BOOTSTRAP */
+#if defined(HAVE_TERMIOS_H) && !defined(JIM_BOOTSTRAP)
+    {   "tty",
+        "?baud rate? ?data bits? ?stop bits? ?parity even|odd|none? ?handshake xonxoff|rtscts|none? ?input raw|cooked? ?output raw|cooked? ?vmin n? ?vtime n?",
+        aio_cmd_tty,
+        0,
+        -1,
+        /* Description: Get or set tty settings - valid only on a tty */
+    },
+#endif /* JIM_BOOTSTRAP */
     { NULL }
 };