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changeset 80:54cebab70c19

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fc-simtool restore-file: add support for cyclic files
author Mychaela Falconia <falcon@freecalypso.org>
date Wed, 17 Feb 2021 05:31:53 +0000
parents b0982c0cf54d
children e89004a245ce
files simtool/restorebin.c
diffstat 1 files changed, 21 insertions(+), 2 deletions(-) [+]
line wrap: on
line diff
--- a/simtool/restorebin.c	Wed Feb 17 05:21:34 2021 +0000
+++ b/simtool/restorebin.c	Wed Feb 17 05:31:53 2021 +0000
@@ -49,6 +49,24 @@
 	return(0);
 }
 
+static
+restore_cyclic(data)
+	u_char *data;
+{
+	unsigned count;
+	u_char *dp;
+	int rc;
+
+	dp = data + curfile_total_size;
+	for (count = 0; count < curfile_record_count; count++) {
+		dp -= curfile_record_len;
+		rc = update_rec_op(0, 0x03, dp, curfile_record_len);
+		if (rc < 0)
+			return(rc);
+	}
+	return(0);
+}
+
 cmd_restore_file(argc, argv)
 	char **argv;
 {
@@ -112,8 +130,9 @@
 		rc = restore_records(databuf);
 		break;
 	case 0x03:
-		fprintf(stderr, "error: cyclic files are not supported\n");
-		rc = -1;
+		/* cyclic */
+		rc = restore_cyclic(databuf);
+		break;
 	}
 	free(databuf);
 	return(rc);