diff options
Diffstat (limited to 'ubi-utils/src/ubimirror/ubimirror.c')
| -rw-r--r-- | ubi-utils/src/ubimirror/ubimirror.c | 206 |
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; +} |