fix broken logic

1 files changed, 18 insertions, 14 deletions

diff --git a/libvxi11client/client.c b/libvxi11client/client.c
index d75ddd5..f946547 100644
--- a/libvxi11client/client.c
+++ b/libvxi11client/client.c
@@ -7,6 +7,8 @@ static char* geterrorstring(int errorcode) {
 	switch (errorcode) {
 		case 0:
 			return "no response from server";
+		case -8:
+			return "operation not supported";
 		default:
 			return "unknown error code";
 	}
@@ -17,7 +19,7 @@ int main() {
 
 	int err = 0;
 
-	if (vxi11_open("192.168.2.250")) {
+	if ((err = vxi11_open("192.168.2.250")) > 0) {
 
 		// write some bytes
 		int byteswritten = vxi11_write(IDENTIFY, sizeof(IDENTIFY));
@@ -34,33 +36,33 @@ int main() {
 			printf("Error reading data\n");
 
 		// trigger
-		if (vxi11_trigger())
+		if (vxi11_trigger() > 0)
 			printf("triggered\n");
 
 		// clear
-		if (vxi11_clear())
+		if (vxi11_clear() > 0)
 			printf("cleared\n");
 
 		// abort
-		if ((err = vxi11_abort()))
+		if ((err = vxi11_abort()) > 0)
 			printf("aborted\n");
 		else
 			printf("abort failed; %s\n", geterrorstring(err));
 
 		// lock
-		if (vxi11_lock())
+		if ((err = vxi11_lock()) > 0)
 			printf("locked\n");
 
 		// unlock
-		if (vxi11_unlock())
+		if ((err = vxi11_unlock()) > 0)
 			printf("unlocked\n");
 
 		// remote
-		if (vxi11_remote())
+		if ((err = vxi11_remote()) > 0)
 			printf("remote'd\n");
 
 		// local
-		if (vxi11_local())
+		if ((err = vxi11_local()) > 0)
 			printf("local'd\n");
 
 		// read the status byte
@@ -71,24 +73,26 @@ int main() {
 			printf("Error reading status byte\n");
 
 		// create interrupt channel
-		vxi11_create_intr_chan();
+		err = vxi11_create_intr_chan();
 
 		// destroy interrupt channel
-		if ((err = vxi11_destroy_intr_chan()))
+		if ((err = vxi11_destroy_intr_chan()) > 0)
 			printf("destroyed interrupt channel\n");
 		else
 			printf("Error destroying interrupt channel; %s\n", geterrorstring(err));
 
 		// docmd
-		if ((err = vxi11_docmd(0x00)))
-			printf("did command, should fail!\n");
+		if ((err = vxi11_docmd(0x00)) > 0)
+			printf("did command, should fail! %d\n");
 		else
-			printf("Error calling docmd; %\n", geterrorstring(err));
+			printf("Error calling docmd; %s\n", geterrorstring(err));
 
 		// close
-		vxi11_close();
+		if ((err = vxi11_close() > 0))
+			printf("Closed\n");
 	}
 	else {
+		printf("Error opening device; %s\n", geterrorstring(err));
 		exit(1);
 	}
 }