add a lazy way to call write

1 files changed, 4 insertions, 3 deletions

diff --git a/libvxi11client/libvxi11client.c b/libvxi11client/libvxi11client.c
index 4b17532..a6a5dd2 100644
--- a/libvxi11client/libvxi11client.c
+++ b/libvxi11client/libvxi11client.c
@@ -171,16 +171,17 @@ int vxi11_readstatusbyte(VXI11Context* context, bool waitforlock) {
 }
 
 /**
- * write to the connected device
+ * write to the connected device. If len is less than 0 the length will be calculated with strlen
+ * **only safe for standard terminated strings**
  */
 
-int vxi11_write(VXI11Context* context, char* data, unsigned int len, bool waitlock, bool end) {
+int vxi11_write(VXI11Context* context, char* data, int len, bool waitlock, bool end) {
 	if (context->clnt == NULL)
 		return 0;
 
 	Device_WriteParms params = { .lid = context->devicelink, .io_timeout = VXI11_DEFAULT_TIMEOUT, .lock_timeout =
 			VXI11_DEFAULT_TIMEOUT, .flags = vxi11_generateflags(waitlock, end, false) };
-	params.data.data_len = len;
+	params.data.data_len = len < 0 ? (strlen(data) + 1) : len;
 	params.data.data_val = data;
 
 	Device_WriteResp* resp = device_write_1(&params, context->clnt);