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Diffstat (limited to 'ubi-utils/src/ubirmvol.c')
-rw-r--r--ubi-utils/src/ubirmvol.c174
1 files changed, 174 insertions, 0 deletions
diff --git a/ubi-utils/src/ubirmvol.c b/ubi-utils/src/ubirmvol.c
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+++ b/ubi-utils/src/ubirmvol.c
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+/*
+ * 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");
+}