66 int	pmon_getdisklabel(struct pmon_iodata *pi);
72 	struct pmon_iodata *pi = (struct pmon_iodata *)f;  in pmon_iostrategy()  local
84 	offs = ((daddr_t)dblk + pi->partoff) * DEV_BSIZE;  in pmon_iostrategy()
85 	if (offs != pi->curpos) {  in pmon_iostrategy()
86 		pos = pmon_lseek(pi->fd, offs, 0 /* SEEK_SET */);  in pmon_iostrategy()
92 	rc = pmon_read(pi->fd, buf, size);  in pmon_iostrategy()
94 		pi->curpos += rc;  in pmon_iostrategy()
108 	struct pmon_iodata *pi;  in pmon_ioopen()  local
113 	pi = alloc(sizeof *pi);  in pmon_ioopen()
114 	if (pi == NULL)  in pmon_ioopen()
116 	bzero(pi, sizeof *pi);  in pmon_ioopen()
117 	f->f_devdata = pi;  in pmon_ioopen()
134 	pi->fd = rc;  in pmon_ioopen()
140 	if (pmon_getdisklabel(pi) != 0) {  in pmon_ioopen()
145 	if (part >= pi->label.d_npartitions) {  in pmon_ioopen()
150 	if (memcmp(pi->label.d_uid, zero, sizeof(pi->label.d_uid)) != 0) {  in pmon_ioopen()
151 		const u_char *duid = pi->label.d_uid;  in pmon_ioopen()
159 	pi->partoff = DL_GETPOFFSET(&pi->label.d_partitions[part]);  in pmon_ioopen()
160 	pi->curpos = 0;  in pmon_ioopen()
168 	struct pmon_iodata *pi;  in pmon_ioclose()  local
172 		pi = (struct pmon_iodata *)f->f_devdata;  in pmon_ioclose()
173 		rc = pmon_close(pi->fd);  in pmon_ioclose()
174 		free(pi, sizeof *pi);  in pmon_ioclose()
186 pmon_getdisklabel(struct pmon_iodata *pi)  in pmon_getdisklabel()  argument
191 	struct disklabel *lp = &pi->label;  in pmon_getdisklabel()
200 	if (pmon_iostrategy(pi, F_READ, DOSBBSECTOR, DEV_BSIZE, buf, &rsize))  in pmon_getdisklabel()
220 	if (pmon_iostrategy(pi, F_READ, sector + DOS_LABELSECTOR, DEV_BSIZE,  in pmon_getdisklabel()