diff options
Diffstat (limited to 'sbin/newfs_msdos')
| -rw-r--r-- | sbin/newfs_msdos/newfs_msdos.c | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/sbin/newfs_msdos/newfs_msdos.c b/sbin/newfs_msdos/newfs_msdos.c index 1c23b24..a29448c 100644 --- a/sbin/newfs_msdos/newfs_msdos.c +++ b/sbin/newfs_msdos/newfs_msdos.c @@ -725,9 +725,20 @@ getdiskinfo(int fd, const char *fname, const char *dtype, __unused int oflag, /* Maybe it's a floppy drive */ if (lp == NULL) { - if (ioctl(fd, DIOCGMEDIASIZE, &ms) == -1) - errx(1, "Cannot get disk size, %s", strerror(errno)); - if (ioctl(fd, FD_GTYPE, &type) != -1) { + if (ioctl(fd, DIOCGMEDIASIZE, &ms) == -1) { + struct stat st; + + bzero(&st, sizeof(st)); + if (fstat(fd, &st)) + err(1, "Cannot get disk size"); + /* create a fake geometry for a file image */ + ms = st.st_size; + dlp.d_secsize = 512; + dlp.d_nsectors = 64; + dlp.d_ntracks = 32; + dlp.d_secperunit = ms / dlp.d_secsize; + lp = &dlp; + } else if (ioctl(fd, FD_GTYPE, &type) != -1) { dlp.d_secsize = 128 << type.secsize; dlp.d_nsectors = type.sectrac; dlp.d_ntracks = type.heads; |
