diff options
Diffstat (limited to 'util.c')
| -rw-r--r-- | util.c | 71 |
1 files changed, 67 insertions, 4 deletions
@@ -113,6 +113,8 @@ int get_linux_version() int enough(int level, int raid_disks, int avail_disks) { switch (level) { + case -4: + return avail_disks>= 1; case -1: case 0: return avail_disks == raid_disks; @@ -197,8 +199,8 @@ int load_super(int fd, mdp_super_t *super) * 5 - no magic * 6 - wrong major version */ - long size; - long long offset; + unsigned long size; + unsigned long long offset; if (ioctl(fd, BLKGETSIZE, &size)) return 1; @@ -433,14 +435,14 @@ char *human_size(long long bytes) if (bytes < 5000*1024) buf[0]=0; else if (bytes < 2*1024LL*1024LL*1024LL) - sprintf(buf, " (%d.%02d MiB %d.%02d MB)", + sprintf(buf, " (%ld.%02ld MiB %ld.%02ld MB)", (long)(bytes>>20), (long)(bytes&0xfffff)/(0x100000/100), (long)(bytes/1000/1000), (long)((bytes%1000000)/10000) ); else - sprintf(buf, " (%d.%02d GiB %d.%02d GB)", + sprintf(buf, " (%ld.%02ld GiB %ld.%02ld GB)", (long)(bytes>>30), (long)((bytes>>10)&0xfffff)/(0x100000/100), (long)(bytes/1000LL/1000LL/1000LL), @@ -448,3 +450,64 @@ char *human_size(long long bytes) ); return buf; } + +char *human_size_brief(long long bytes) +{ + static char buf[30]; + + + if (bytes < 5000*1024) + sprintf(buf, "%ld.%02ldKiB", + (long)(bytes>>10), (long)((bytes&1023)*100/1024) + ); + else if (bytes < 2*1024LL*1024LL*1024LL) + sprintf(buf, "%ld.%02ldMiB", + (long)(bytes>>20), + (long)(bytes&0xfffff)/(0x100000/100) + ); + else + sprintf(buf, "%ld.%02ldGiB", + (long)(bytes>>30), + (long)((bytes>>10)&0xfffff)/(0x100000/100) + ); + return buf; +} + + +#define MD_MAJOR 9 +char *get_md_name(int dev) +{ + /* find /dev/md%d or /dev/md/%d or make a device /dev/.tmp.md%d */ + static char devname[50]; + struct stat stb; + dev_t rdev = MKDEV(MD_MAJOR, dev); + + sprintf(devname, "/dev/md%d", dev); + if (stat(devname, &stb) == 0 + && (S_IFMT&stb.st_mode) == S_IFBLK + && (stb.st_rdev == rdev)) + return devname; + + sprintf(devname, "/dev/md/%d", dev); + if (stat(devname, &stb) == 0 + && (S_IFMT&stb.st_mode) == S_IFBLK + && (stb.st_rdev == rdev)) + return devname; + + sprintf(devname, "/dev/.tmp.md%d", dev); + if (mknod(devname, S_IFBLK | 0600, rdev) == -1) + return NULL; + + if (stat(devname, &stb) == 0 + && (S_IFMT&stb.st_mode) == S_IFBLK + && (stb.st_rdev == rdev)) + return devname; + unlink(devname); + return NULL; +} + +void put_md_name(char *name) +{ + if (strncmp(name, "/dev/.tmp.md", 12)==0) + unlink(name); +} |