diff options
Diffstat (limited to 'lib/libufs/block.c')
| -rw-r--r-- | lib/libufs/block.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/lib/libufs/block.c b/lib/libufs/block.c index c4ff304..5450a5d 100644 --- a/lib/libufs/block.c +++ b/lib/libufs/block.c @@ -30,6 +30,7 @@ __FBSDID("$FreeBSD$"); #include <sys/param.h> #include <sys/mount.h> +#include <sys/disk.h> #include <sys/disklabel.h> #include <sys/stat.h> @@ -133,3 +134,21 @@ bwrite(struct uufsd *disk, ufs2_daddr_t blockno, const void *data, size_t size) return (cnt); } + +int +berase(struct uufsd *disk, ufs2_daddr_t blockno, ufs2_daddr_t size) +{ + off_t ioarg[2]; + int rv; + + ERROR(disk, NULL); + rv = ufs_disk_write(disk); + if (rv == -1) { + ERROR(disk, "failed to open disk for writing"); + return(rv); + } + ioarg[0] = blockno * disk->d_bsize; + ioarg[1] = size; + rv = ioctl(disk->d_fd, DIOCGDELETE, ioarg); + return (rv); +} |
