diff options
Diffstat (limited to 'flash_lock.c')
| -rw-r--r-- | flash_lock.c | 112 |
1 files changed, 56 insertions, 56 deletions
diff --git a/flash_lock.c b/flash_lock.c index 1238a3d..dca6794 100644 --- a/flash_lock.c +++ b/flash_lock.c @@ -18,67 +18,67 @@ int main(int argc, char *argv[]) { - int fd; - struct mtd_info_user mtdInfo; - struct erase_info_user mtdLockInfo; - int num_sectors; - int ofs; + int fd; + struct mtd_info_user mtdInfo; + struct erase_info_user mtdLockInfo; + int num_sectors; + int ofs; - /* - * Parse command line options - */ - if(argc != 4) - { - fprintf(stderr, "USAGE: %s <mtd device> <ofs in hex> <num of sectors in decimal or -1 for all sectors>\n", argv[0]); - exit(1); - } - else if(strncmp(argv[1], "/dev/mtd", 8) != 0) - { - fprintf(stderr, "'%s' is not a MTD device. Must specify mtd device: /dev/mtd?\n", argv[1]); - exit(1); - } + /* + * Parse command line options + */ + if(argc != 4) + { + fprintf(stderr, "USAGE: %s <mtd device> <ofs in hex> <num of sectors in decimal or -1 for all sectors>\n", argv[0]); + exit(1); + } + else if(strncmp(argv[1], "/dev/mtd", 8) != 0) + { + fprintf(stderr, "'%s' is not a MTD device. Must specify mtd device: /dev/mtd?\n", argv[1]); + exit(1); + } - fd = open(argv[1], O_RDWR); - if(fd < 0) - { - fprintf(stderr, "Could not open mtd device: %s\n", argv[1]); - exit(1); - } + fd = open(argv[1], O_RDWR); + if(fd < 0) + { + fprintf(stderr, "Could not open mtd device: %s\n", argv[1]); + exit(1); + } - if(ioctl(fd, MEMGETINFO, &mtdInfo)) - { - fprintf(stderr, "Could not get MTD device info from %s\n", argv[1]); - close(fd); - exit(1); - } - sscanf(argv[2], "%x",&ofs); - sscanf(argv[3], "%d",&num_sectors); - if(ofs > mtdInfo.size - mtdInfo.erasesize) - { - fprintf(stderr, "%x is beyond device size %x\n",ofs,(unsigned int)(mtdInfo.size - mtdInfo.erasesize)); - exit(1); - } + if(ioctl(fd, MEMGETINFO, &mtdInfo)) + { + fprintf(stderr, "Could not get MTD device info from %s\n", argv[1]); + close(fd); + exit(1); + } + sscanf(argv[2], "%x",&ofs); + sscanf(argv[3], "%d",&num_sectors); + if(ofs > mtdInfo.size - mtdInfo.erasesize) + { + fprintf(stderr, "%x is beyond device size %x\n",ofs,(unsigned int)(mtdInfo.size - mtdInfo.erasesize)); + exit(1); + } - if (num_sectors == -1) { - num_sectors = mtdInfo.size/mtdInfo.erasesize; - } - else { - if(num_sectors > mtdInfo.size/mtdInfo.erasesize) - { - fprintf(stderr, "%d are too many sectors, device only has %d\n",num_sectors,(int)(mtdInfo.size/mtdInfo.erasesize)); - exit(1); - } - } + if (num_sectors == -1) { + num_sectors = mtdInfo.size/mtdInfo.erasesize; + } + else { + if(num_sectors > mtdInfo.size/mtdInfo.erasesize) + { + fprintf(stderr, "%d are too many sectors, device only has %d\n",num_sectors,(int)(mtdInfo.size/mtdInfo.erasesize)); + exit(1); + } + } - mtdLockInfo.start = ofs; - mtdLockInfo.length = num_sectors * mtdInfo.erasesize; - if(ioctl(fd, MEMLOCK, &mtdLockInfo)) - { - fprintf(stderr, "Could not lock MTD device: %s\n", argv[1]); - close(fd); - exit(1); - } + mtdLockInfo.start = ofs; + mtdLockInfo.length = num_sectors * mtdInfo.erasesize; + if(ioctl(fd, MEMLOCK, &mtdLockInfo)) + { + fprintf(stderr, "Could not lock MTD device: %s\n", argv[1]); + close(fd); + exit(1); + } - return 0; + return 0; } |