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-rw-r--r--ubi-utils/src/ubimirror/ubimirror.c206
1 files changed, 206 insertions, 0 deletions
diff --git a/ubi-utils/src/ubimirror/ubimirror.c b/ubi-utils/src/ubimirror/ubimirror.c
new file mode 100644
index 0000000..e43ba10
--- /dev/null
+++ b/ubi-utils/src/ubimirror/ubimirror.c
@@ -0,0 +1,206 @@
+/*
+ * 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.
+ *
+ * Author: Oliver Lohmann
+ */
+
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+#include <getopt.h>
+#include <argp.h>
+#include <unistd.h>
+#include <errno.h>
+#include <mtd/ubi-header.h>
+
+#include "config.h"
+#include "error.h"
+#include "example_ubi.h"
+#include "ubimirror.h"
+
+typedef enum action_t {
+ ACT_NORMAL = 0,
+ ACT_ARGP_ABORT,
+ ACT_ARGP_ERR,
+} action_t;
+
+#define ABORT_ARGP do { \
+ state->next = state->argc; \
+ args->action = ACT_ARGP_ABORT; \
+} while (0)
+
+#define ERR_ARGP do { \
+ state->next = state->argc; \
+ args->action = ACT_ARGP_ERR; \
+} while (0)
+
+#define VOL_ARGS_MAX 2
+
+
+const char *argp_program_version = PACKAGE_VERSION;
+const char *argp_program_bug_address = PACKAGE_BUGREPORT;
+static char doc[] = "\nVersion: " PACKAGE_VERSION "\n\tBuilt on "
+ BUILD_CPU" "BUILD_OS" at "__DATE__" "__TIME__"\n"
+ "\n"
+ "ubimirror - mirrors ubi volumes.\n";
+
+static const char copyright [] __attribute__((unused)) =
+ "(C) IBM Coorporation 2007";
+
+
+static struct argp_option options[] = {
+ { name: "copyright", key: 'c', arg: NULL, flags: 0,
+ doc: "Print copyright information.",
+ group: 1 },
+
+ { name: "side", key: 's', arg: "<seqnum>", flags: 0,
+ doc: "Use the side <seqnum> as source.",
+ group: 1 },
+
+ { name: NULL, key: 0, arg: NULL, flags: 0, doc: NULL, group: 0 },
+};
+
+typedef struct myargs {
+ action_t action;
+ int side;
+ int vol_no; /* index of current volume */
+ /* @FIXME replace by bootenv_list, makes live easier */
+ /* @FIXME remove the constraint of two entries in the array */
+ const char* vol[VOL_ARGS_MAX]; /* comma separated list of src/dst
+ volumes */
+ char *arg1;
+ char **options; /* [STRING...] */
+} myargs;
+
+static int
+get_update_side(const char* str)
+{
+ uint32_t i = strtoul(str, NULL, 0);
+
+ if ((i != 0) && (i != 1)) {
+ return -1;
+ }
+ return i;
+}
+
+
+static error_t
+parse_opt(int key, char *arg, struct argp_state *state)
+{
+ int err = 0;
+
+ myargs *args = state->input;
+
+ switch (key) {
+ case 'c':
+ err_msg("%s\n", copyright);
+ ABORT_ARGP;
+ break;
+ case 's':
+ args->side = get_update_side(arg);
+ if (args->side < 0) {
+ err_msg("Unsupported seqnum: %s.\n"
+ "Supported seqnums are '0' and '1'\n", arg);
+ ERR_ARGP;
+ }
+ break;
+ case ARGP_KEY_ARG:
+ /* only two entries allowed */
+ if (args->vol_no >= VOL_ARGS_MAX) {
+ err_msg("\n");
+ argp_usage(state);
+ ERR_ARGP;
+ }
+ args->vol[(args->vol_no)++] = arg;
+ break;
+ case ARGP_KEY_END:
+ if (err) {
+ err_msg("\n");
+ argp_usage(state);
+ ERR_ARGP;
+ }
+ break;
+ default:
+ return(ARGP_ERR_UNKNOWN);
+ }
+
+ return 0;
+}
+
+static struct argp argp = {
+ options: options,
+ parser: parse_opt,
+ args_doc: "<source> <destination>",
+ doc: doc,
+ children: NULL,
+ help_filter: NULL,
+ argp_domain: NULL,
+};
+
+
+int
+main(int argc, char **argv) {
+ int rc = 0;
+ unsigned int ids[VOL_ARGS_MAX];
+ char err_buf[1024];
+
+ myargs args = {
+ .action = ACT_NORMAL,
+ .side = -1,
+ .vol_no = 0,
+ .vol = {"", ""},
+ .options = NULL,
+ };
+
+ argp_parse(&argp, argc, argv, ARGP_IN_ORDER, 0, &args);
+ if (args.action == ACT_ARGP_ERR) {
+ rc = 127;
+ goto err;
+ }
+ if (args.action == ACT_ARGP_ABORT) {
+ rc = 126;
+ goto out;
+ }
+ if (args.vol_no < VOL_ARGS_MAX) {
+ fprintf(stderr, "missing volume number for %s\n",
+ args.vol_no == 0 ? "source and target" : "target");
+ rc = 125;
+ goto out;
+ }
+ for( rc = 0; rc < args.vol_no; ++rc){
+ char *endp;
+ ids[rc] = strtoul(args.vol[rc], &endp, 0);
+ if( *endp != '\0' ){
+ fprintf(stderr, "invalid volume number %s\n",
+ args.vol[rc]);
+ rc = 125;
+ goto out;
+ }
+ }
+ rc = ubimirror(EXAMPLE_UBI_DEVICE, args.side, ids, args.vol_no,
+ err_buf, sizeof(err_buf));
+ if( rc ){
+ err_buf[sizeof err_buf - 1] = '\0';
+ fprintf(stderr, err_buf);
+ if( rc < 0 )
+ rc = -rc;
+ }
+ out:
+ err:
+ return rc;
+}