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authorDongsheng Yang <yangds.fnst@cn.fujitsu.com>2015-10-31 11:12:01 +0800
committerBrian Norris <computersforpeace@gmail.com>2015-11-11 14:38:40 -0800
commit7d81790ced345585b1e647ca9d0f6678e7062fa4 (patch)
tree02f61270c7a0fff7bb6b2e28f247a3d2fd6ff490 /mtdpart.c
parent344753f2aacb94d98ce238f81fc4a4b6ef6adea9 (diff)
mtd-utils: Restructure the mtd-utils source.
* There is no code modification in this commit, only moving * the files to proper place. The user tools looks a little messy as we place almost the all tools in the root directory of mtd-utils. To make it more clear, I propose to introduce the following structure for our source code. mtd-utils/ |-- lib |-- include |-- misc-utils |-- jffsX-utils |-- nand-utils |-- nor-utils |-- ubi-utils |-- ubifs-utils `-- tests Signed-off-by: Dongsheng Yang <yangds.fnst@cn.fujitsu.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Diffstat (limited to 'mtdpart.c')
-rw-r--r--mtdpart.c194
1 files changed, 0 insertions, 194 deletions
diff --git a/mtdpart.c b/mtdpart.c
deleted file mode 100644
index 0016e34..0000000
--- a/mtdpart.c
+++ /dev/null
@@ -1,194 +0,0 @@
-/*
- * mtdpart.c
- *
- * Copyright 2015 The Chromium OS Authors.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * Overview:
- * This utility adds or removes a partition from an MTD device.
- */
-
-#define PROGRAM_NAME "mtdpart"
-
-#include <fcntl.h>
-#include <getopt.h>
-#include <limits.h>
-#include <linux/blkpg.h>
-#include <stdio.h>
-#include <string.h>
-#include <sys/ioctl.h>
-#include <sys/stat.h>
-#include <sys/types.h>
-#include <unistd.h>
-
-#include "common.h"
-
-static void display_help(int status)
-{
- fprintf(status == EXIT_SUCCESS ? stdout : stderr,
-"Usage: %1$s add [OPTION] <MTD_DEVICE> <PART_NAME> <START> <SIZE>\n"
-" %1$s del [OPTION] <MTD_DEVICE> <PART_NUMBER>\n"
-"Adds a partition to an MTD device, or remove an existing partition from it.\n"
-"\n"
-" -h, --help Display this help and exit\n"
-" --version Output version information and exit\n"
-"\n"
-"START location and SIZE of the partition are in bytes. They should align on\n"
-"eraseblock size.\n",
- PROGRAM_NAME
- );
- exit(status);
-}
-
-static void display_version(void)
-{
- printf("%1$s " VERSION "\n"
- "\n"
- "%1$s comes with NO WARRANTY\n"
- "to the extent permitted by law.\n"
- "\n"
- "You may redistribute copies of %1$s\n"
- "under the terms of the GNU General Public Licence.\n"
- "See the file `COPYING' for more information.\n",
- PROGRAM_NAME);
- exit(EXIT_SUCCESS);
-}
-
-/* Command arguments */
-
-typedef enum {
- COMMAND_ADD,
- COMMAND_DEL
-} command_type;
-
-static command_type command; /* add or del */
-static const char *mtddev; /* mtd device name */
-static const char *part_name; /* partition name */
-static int part_no; /* partition number */
-static long long start_addr; /* start address */
-static long long length; /* partition size */
-
-static void process_options(int argc, char * const argv[])
-{
- int error = 0;
-
- for (;;) {
- int option_index = 0;
- static const char short_options[] = "h";
- static const struct option long_options[] = {
- {"version", no_argument, 0, 0},
- {"help", no_argument, 0, 'h'},
- {0, 0, 0, 0},
- };
-
- int c = getopt_long(argc, argv, short_options,
- long_options, &option_index);
- if (c == EOF) {
- break;
- }
-
- switch (c) {
- case 0:
- display_version();
- break;
- case 'h':
- display_help(EXIT_SUCCESS);
- break;
- case '?':
- error++;
- break;
- }
- }
-
- if ((argc - optind) < 3 || error)
- display_help(EXIT_FAILURE);
-
- const char *s_command = argv[optind++];
- mtddev = argv[optind++];
-
- if (strcmp(s_command, "del") == 0 && (argc - optind) == 1) {
- const char *s_part_no = argv[optind++];
-
- long tmp = simple_strtol(s_part_no, &error);
- if (tmp < 0)
- errmsg_die("Can't specify negative partition number: %ld",
- tmp);
- if (tmp > INT_MAX)
- errmsg_die("Partition number exceeds INT_MAX: %ld",
- tmp);
-
- part_no = tmp;
- command = COMMAND_DEL;
- } else if (strcmp(s_command, "add") == 0 && (argc - optind) == 3) {
- const char *s_start;
- const char *s_length;
-
- part_name = argv[optind++];
- s_start = argv[optind++];
- s_length = argv[optind++];
-
- if (strlen(part_name) >= BLKPG_DEVNAMELTH)
- errmsg_die("Partition name (%s) should be less than %d characters",
- part_name, BLKPG_DEVNAMELTH);
-
- start_addr = simple_strtoll(s_start, &error);
- if (start_addr < 0)
- errmsg_die("Can't specify negative start offset: %lld",
- start_addr);
-
- length = simple_strtoll(s_length, &error);
- if (length < 0)
- errmsg_die("Can't specify negative length: %lld",
- length);
-
- command = COMMAND_ADD;
- } else
- display_help(EXIT_FAILURE);
-
- if (error)
- display_help(EXIT_FAILURE);
-}
-
-
-int main(int argc, char * const argv[])
-{
- int fd;
- struct blkpg_partition part;
- struct blkpg_ioctl_arg arg;
-
- process_options(argc, argv);
-
- fd = open(mtddev, O_RDWR | O_CLOEXEC);
- if (fd == -1)
- sys_errmsg_die("Cannot open %s", mtddev);
-
- memset(&part, 0, sizeof(part));
-
- memset(&arg, 0, sizeof(arg));
- arg.datalen = sizeof(part);
- arg.data = &part;
-
- switch (command) {
- case COMMAND_ADD:
- part.start = start_addr;
- part.length = length;
- strncpy(part.devname, part_name, sizeof(part.devname));
- arg.op = BLKPG_ADD_PARTITION;
- break;
- case COMMAND_DEL:
- part.pno = part_no;
- arg.op = BLKPG_DEL_PARTITION;
- break;
- }
-
- if (ioctl(fd, BLKPG, &arg))
- sys_errmsg_die("Failed to issue BLKPG ioctl");
-
- close(fd);
-
- /* Exit happy */
- return EXIT_SUCCESS;
-}