MT#58307 test: Do not print binary garbage to stdout

Depending on the buffer contents, we might be printing binary garbage to
stdout, which can mess up with the terminal state if that happens to be
ANSI control codes.

Change-Id: Iee0059bccccb33bc47a6b066a353b0038a9679a2

tests/basic.c

@@ -15,6 +15,13 @@ const char tcap[] = {
 //const int tcap_len = sizeof(tcap) - 1;
 const int tcap_len = sizeof(tcap);
 
+static void print_outbuf(const char *desc, int ret, struct output_buffer *out)
+{
+	printf("%s: returned %i, value: ", desc, ret);
+	for (int i = 0; i < out->used; i++)
+		printf("%#02x ", out->buf[i]);
+	printf("\n");
+}
 
 int main() {
 	int i;
@@ -23,27 +30,27 @@ int main() {
 
 //	OUTPUT_BUFFER_INIT(&out, buf);
 //	i = tcap_extract(tcap, tcap_len, "end.components.1.invoke.opCode.localValue", &out);
-//	printf("tcap_extract opcode: returned %i, value %.*s\n", i, (int) out.used, out.buf);
+//	print_outbuf("tcap_extract opcode", i, &out);
 //
 //	OUTPUT_BUFFER_INIT(&out, buf);
 //	i = inap_extract(tcap, tcap_len, "ConnectArg", &out);
-//	printf("inap_extract ConnectArg: returned %i, value %.*s\n", i, (int) out.used, out.buf);
+//	print_outbuf("inap_extract ConnectArg", i, &out);
 //
 //	OUTPUT_BUFFER_INIT(&out, buf);
 //	i = inap_extract(tcap, tcap_len, "ConnectArg.cutAndPaste", &out);
-//	printf("inap_extract ConnectArg.cutAndPaste: returned %i, value %.*s\n", i, (int) out.used, out.buf);
+//	print_outbuf("inap_extract ConnectArg.cutAndPaste", i, &out);
 //
 //	OUTPUT_BUFFER_INIT(&out, buf);
 //	i = inap_extract(tcap, tcap_len, "ConnectArg.destinationRoutingAddress", &out);
-//	printf("inap_extract ConnectArg.destinationRoutingAddress: returned %i, value %.*s\n", i, (int) out.used, out.buf);
+//	print_outbuf("inap_extract ConnectArg.destinationRoutingAddress", i, &out);
 //
 	OUTPUT_BUFFER_INIT(&out, buf);
 	i = inap_extract(tcap, tcap_len, "ConnectArg.destinationRoutingAddress.0", &out);
-	printf("inap_extract ConnectArg: returned %i, value %.*s\n", i, (int) out.used, out.buf);
+	print_outbuf("inap_extract ConnectArg", i, &out);
 
 //	OUTPUT_BUFFER_INIT(&out, buf);
 //	i = inap_extract(tcap, tcap_len, "InitialDPArg.calledPartyNumber", &out);
-//	printf("inap_extract InitialDPArg: returned %i, value %.*s\n", i, (int) out.used, out.buf);
+//	print_outbuf("inap_extract InitialDPArg", i, &out);
 
 	return 0;
 }

tests/encode.c

@@ -18,7 +18,10 @@ int main() {
 	if (ret < 0) {
 		fprintf(stderr, "failed to encode tcap\n");
 	} else {
-		fwrite(buf, ret, 1, stdout);
+		printf("buffer: ");
+		for (int i = 0; i < ret; i++)
+			printf("0x%02x ", (unsigned char)buf[i]);
+		printf("\n");
 	}
 
 	free(buf);