--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/simtool/smserase.c	Fri Feb 12 23:02:09 2021 +0000
@@ -0,0 +1,116 @@
+/*
+ * This module implements the sms-erase family of commands.
+ */
+
+#include <sys/types.h>
+#include <string.h>
+#include <strings.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include "curfile.h"
+#include "file_id.h"
+
+#define	SMS_RECORD_LEN	176
+
+static
+select_ef_sms()
+{
+	int rc;
+
+	rc = select_op(DF_TELECOM);
+	if (rc < 0)
+		return(rc);
+	rc = select_op(EF_SMS);
+	if (rc < 0)
+		return(rc);
+	rc = parse_ef_select_response();
+	if (rc < 0)
+		return(rc);
+	if (curfile_structure != 0x01) {
+		fprintf(stderr, "error: EF_SMS is not linear fixed\n");
+		return(-1);
+	}
+	if (curfile_record_len != SMS_RECORD_LEN) {
+		fprintf(stderr,
+		"error: EF_SMS has record length of %u bytes, expected 176\n",
+			curfile_record_len);
+		return(-1);
+	}
+	return(0);
+}
+
+cmd_sms_erase_all(argc, argv)
+	char **argv;
+{
+	int rc;
+	unsigned recno;
+	u_char record[SMS_RECORD_LEN];
+
+	rc = select_ef_sms();
+	if (rc < 0)
+		return(rc);
+	memset(record, 0xFF, SMS_RECORD_LEN);
+	record[0] = 0;
+	for (recno = 1; recno <= curfile_record_count; recno++) {
+		rc = update_rec_op(recno, 0x04, record, SMS_RECORD_LEN);
+		if (rc < 0)
+			return(rc);
+	}
+	return(0);
+}
+
+cmd_sms_erase_one(argc, argv)
+	char **argv;
+{
+	int rc;
+	unsigned recno;
+	u_char record[SMS_RECORD_LEN];
+
+	rc = select_ef_sms();
+	if (rc < 0)
+		return(rc);
+	recno = strtoul(argv[1], 0, 0);
+	if (recno < 1 || recno > curfile_record_count) {
+		fprintf(stderr, "error: specified record number is invalid\n");
+		return(-1);
+	}
+	memset(record, 0xFF, SMS_RECORD_LEN);
+	record[0] = 0;
+	return update_rec_op(recno, 0x04, record, SMS_RECORD_LEN);
+}
+
+cmd_sms_erase_range(argc, argv)
+	char **argv;
+{
+	int rc;
+	unsigned recno, startrec, endrec;
+	u_char record[SMS_RECORD_LEN];
+
+	rc = select_ef_sms();
+	if (rc < 0)
+		return(rc);
+	startrec = strtoul(argv[1], 0, 0);
+	if (startrec < 1 || startrec > curfile_record_count) {
+		fprintf(stderr,
+			"error: specified starting record number is invalid\n");
+		return(-1);
+	}
+	endrec = strtoul(argv[2], 0, 0);
+	if (endrec < 1 || endrec > curfile_record_count) {
+		fprintf(stderr,
+			"error: specified final record number is invalid\n");
+		return(-1);
+	}
+	if (startrec > endrec) {
+		fprintf(stderr, "error: reverse record range specified\n");
+		return(-1);
+	}
+	memset(record, 0xFF, SMS_RECORD_LEN);
+	record[0] = 0;
+	for (recno = startrec; recno <= endrec; recno++) {
+		rc = update_rec_op(recno, 0x04, record, SMS_RECORD_LEN);
+		if (rc < 0)
+			return(rc);
+	}
+	return(0);
+}