1 files changed, 174 insertions, 0 deletions
diff --git a/ubi-utils/src/ubirmvol.c b/ubi-utils/src/ubirmvol.c
new file mode 100644
index 0000000..cb47b6c
--- /dev/null
+++ b/ubi-utils/src/ubirmvol.c
@@ -0,0 +1,174 @@
+/*
+ * Copyright (c) International Business Machines Corp., 2006
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
+ * the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+/*
+ * An utility to create UBI volumes.
+ *
+ * Autor: Artem B. Bityutskiy <dedekind@oktetlabs.ru>
+ */
+
+#include <stdio.h>
+#include <stdint.h>
+#include <getopt.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+
+#include "config.h"
+#include <libubi.h>
+
+static void usage(void);
+static int param_sanity_check(ubi_lib_t lib);
+static int parse_options(int argc, char * const argv[]);
+
+/*
+ * The below variables are set by command line options.
+ */
+static int vol_id = -1;
+static int devn = -1;
+
+int main(int argc, char * const argv[])
+{
+	int err, old_errno;
+	ubi_lib_t lib;
+
+	err = parse_options(argc, argv);
+	if (err)
+		return err == 1 ? 0 : -1;
+
+	if (devn == -1) {
+		fprintf(stderr, "Device number was not specified\n");
+		fprintf(stderr, "Use -h option for help\n");
+		return -1;
+	}
+
+	err = ubi_open(&lib);
+	if (err) {
+		perror("Cannot open libubi");
+		return -1;
+	}
+
+	err = param_sanity_check(lib);
+	if (err) {
+		perror("Input parameters check");
+		fprintf(stderr, "Use -h option for help\n");
+		goto out_libubi;
+	}
+
+	err = ubi_rmvol(lib, devn, vol_id);
+	old_errno = errno;
+	if (err < 0) {
+		perror("Cannot remove volume");
+		fprintf(stderr, "    err=%d errno=%d\n", err, old_errno);
+		goto out_libubi;
+	}
+
+	return 0;
+
+out_libubi:
+	ubi_close(&lib);
+	return -1;
+}
+
+/* 'getopt()' option string */
+static const char *optstring = "hd:n:";
+
+static int parse_options(int argc, char * const argv[])
+{
+	int opt = 0;
+
+	while (opt != -1) {
+		char *endp;
+
+		opt = getopt(argc, argv, optstring);
+
+		switch (opt) {
+		case 'h':
+			usage();
+			return 1;
+		case 'n':
+			vol_id = strtoul(optarg, &endp, 0);
+			if (*endp != '\0' || endp == optarg || vol_id < 0) {
+				fprintf(stderr, "Bad volume "
+					"number: \"%s\"\n", optarg);
+				goto out;
+			}
+			break;
+		case 'd':
+			devn = strtoul(optarg, &endp, 0);
+			if (*endp != '\0' || endp == optarg || devn < 0) {
+				fprintf(stderr, "Bad UBI device "
+					"number: \"%s\"\n", optarg);
+				goto out;
+			}
+			break;
+		case ':':
+			fprintf(stderr, "Parameter is missing\n");
+			goto out;
+		case '?':
+			fprintf(stderr, "Unknown parameter\n");
+			goto out;
+		case -1:
+			break;
+		default:
+			fprintf(stderr, "Internal error\n");
+			goto out;
+		}
+	}
+
+	return 0;
+
+out:
+	errno = EINVAL;
+	return -1;
+}
+
+static int param_sanity_check(ubi_lib_t lib)
+{
+	int err;
+	struct ubi_info ubi;
+
+	if (vol_id == -1) {
+		fprintf(stderr, "Volume ID was not specified\n");
+		goto out;
+	}
+
+	err = ubi_get_info(lib, &ubi);
+	if (err)
+		return -1;
+
+	if (devn >= (int)ubi.dev_count) {
+		fprintf(stderr, "Device %d does not exist\n", devn);
+		goto out;
+	}
+
+	return 0;
+
+out:
+	errno = EINVAL;
+	return -1;
+}
+
+static void usage(void)
+{
+	printf("Usage: ubi_rmvol OPTIONS\n"
+	       "Command line options:\n"
+	       "\t-h - this help message\n"
+	       "\t-d - UBI device number\n"
+	       "\t-n VOLNUM - volume number to remove\n");
+}