diff options
Diffstat (limited to 'util.c')
| -rw-r--r-- | util.c | 19 |
1 files changed, 19 insertions, 0 deletions
@@ -246,6 +246,25 @@ int same_uuid(int a[4], int b[4], int swapuuid) return 0; } } +void copy_uuid(void *a, int b[4], int swapuuid) +{ + if (swapuuid) { + /* parse uuids are hostendian. + * uuid's from some superblocks are big-ending + * if there is a difference, we need to swap.. + */ + unsigned char *ac = (unsigned char *)a; + unsigned char *bc = (unsigned char *)b; + int i; + for (i=0; i<16; i+= 4) { + ac[i+0] = bc[i+3]; + ac[i+1] = bc[i+2]; + ac[i+2] = bc[i+1]; + ac[i+3] = bc[i+0]; + } + } else + memcpy(a, b, 16); +} #ifndef MDASSEMBLE int check_ext2(int fd, char *name) |