--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/simtool/sstdump.c	Sat Feb 13 03:09:44 2021 +0000
@@ -0,0 +1,55 @@
+/*
+ * This module implements the sst-dump command,
+ * providing a more readable form of the SIM Service Table.
+ */
+
+#include <sys/types.h>
+#include <stdio.h>
+#include "simresp.h"
+#include "curfile.h"
+#include "file_id.h"
+
+cmd_sst_dump()
+{
+	int rc;
+	unsigned byte, pos, code, nserv;
+
+	rc = select_op(DF_GSM);
+	if (rc < 0)
+		return(rc);
+	rc = select_op(EF_SST);
+	if (rc < 0)
+		return(rc);
+	rc = parse_ef_select_response();
+	if (rc < 0)
+		return(rc);
+	if (curfile_structure != 0x00) {
+		fprintf(stderr, "error: EF_SST is not transparent\n");
+		return(-1);
+	}
+	if (curfile_total_size < 2) {
+		fprintf(stderr,
+		"error: EF_SST is shorter than spec minimum of 2 bytes\n");
+		return(-1);
+	}
+	if (curfile_total_size > 256) {
+		fprintf(stderr,
+			"error: EF_SST is longer than our 256 byte limit\n");
+		return(-1);
+	}
+	rc = readbin_op(0, curfile_total_size);
+	if (rc < 0)
+		return(rc);
+	nserv = 1;
+	for (byte = 0; byte < curfile_total_size; byte++) {
+		for (pos = 0; pos < 8; pos += 2) {
+			code = (sim_resp_data[byte] >> pos) & 3;
+			if (code == 3)
+				printf("#%u: activated\n", nserv);
+			else if (code == 1)
+				printf("#%u: allocated\n", nserv);
+			nserv++;
+		}
+	}
+	return(0);
+}