--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/simtool/getresp.c	Sun Mar 14 07:11:25 2021 +0000
@@ -0,0 +1,69 @@
+/*
+ * This module implements an elementary GET RESPONSE command
+ */
+
+#include <sys/types.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include "simresp.h"
+
+cmd_get_response(argc, argv, outf)
+	char **argv;
+	FILE *outf;
+{
+	u_char cmd[5];
+	int rc;
+	unsigned len;
+
+	len = strtoul(argv[1], 0, 0);
+	if (len < 1 || len > 256) {
+		fprintf(stderr, "error: length argument is out of range\n");
+		return(-1);
+	}
+	/* GET RESPONSE command APDU */
+	cmd[0] = 0xA0;
+	cmd[1] = 0xC0;
+	cmd[2] = 0;
+	cmd[3] = 0;
+	cmd[4] = len;
+	rc = apdu_exchange(cmd, 5);
+	if (rc < 0)
+		return(rc);
+	if (sim_resp_sw != 0x9000) {
+		fprintf(stderr, "bad SW resp to GET RESPONSE: %04X\n",
+			sim_resp_sw);
+		return(-1);
+	}
+	display_sim_resp_in_hex(outf);
+	return(0);
+}
+
+get_response_op()
+{
+	u_char cmd[5];
+	int rc;
+	unsigned expect_resp_len;
+
+	expect_resp_len = sim_resp_sw & 0xFF;
+	/* GET RESPONSE command APDU */
+	cmd[0] = 0xA0;
+	cmd[1] = 0xC0;
+	cmd[2] = 0;
+	cmd[3] = 0;
+	cmd[4] = expect_resp_len;
+	rc = apdu_exchange(cmd, 5);
+	if (rc < 0)
+		return(rc);
+	if (sim_resp_sw != 0x9000) {
+		fprintf(stderr, "bad SW resp to GET RESPONSE: %04X\n",
+			sim_resp_sw);
+		return(-1);
+	}
+	if (sim_resp_data_len != expect_resp_len) {
+		fprintf(stderr,
+			"error: GET RESPONSE returned %u bytes, expected %u\n",
+			sim_resp_data_len, expect_resp_len);
+		return(-1);
+	}
+	return(0);
+}