43 static int ip6optlen(u_int8_t *opt, u_int8_t *lim);
107 inet6_option_append(struct cmsghdr *cmsg, const u_int8_t *typep, int multx,  in inet6_option_append()
175 u_int8_t *
179 	u_int8_t *bp = (u_char *)cmsg + cmsg->cmsg_len;  in inet6_option_alloc()
180 	u_int8_t *retval;  in inet6_option_alloc()
238 inet6_option_next(const struct cmsghdr *cmsg, u_int8_t **tptrp)  in inet6_option_next()
242 	u_int8_t *lim;  in inet6_option_next()
262 	lim = (u_int8_t *)ip6e + hdrlen;  in inet6_option_next()
264 		*tptrp = (u_int8_t *)(ip6e + 1);  in inet6_option_next()
294 inet6_option_find(const struct cmsghdr *cmsg, u_int8_t **tptrp, int type)  in inet6_option_find()
298 	u_int8_t *optp, *lim;  in inet6_option_find()
318 	lim = (u_int8_t *)ip6e + hdrlen;  in inet6_option_find()
320 		*tptrp = (u_int8_t *)(ip6e + 1);  in inet6_option_find()
347 ip6optlen(u_int8_t *opt, u_int8_t *lim)  in ip6optlen()
402 inet6_opt_append(void *extbuf, socklen_t extlen, int offset, u_int8_t type,  in inet6_opt_append()
403 		 socklen_t len, u_int8_t align, void **databufp)  in inet6_opt_append()
442 		u_int8_t *optp = (u_int8_t *)extbuf + offset;  in inet6_opt_append()
472 		u_int8_t *padp;  in inet6_opt_finish()
478 		padp = (u_int8_t *)extbuf + offset;  in inet6_opt_finish()
495 	memcpy((u_int8_t *)databuf + offset, val, vallen);  in inet6_opt_set_val()
500 inet6_opt_next(void *extbuf, socklen_t extlen, int offset, u_int8_t *typep,  in inet6_opt_next()
503 	u_int8_t *optp, *lim;  in inet6_opt_next()
509 	lim = (u_int8_t *)extbuf + extlen;  in inet6_opt_next()
517 		optp = (u_int8_t *)((struct ip6_hbh *)extbuf + 1);  in inet6_opt_next()
520 		optp = (u_int8_t *)extbuf + offset;  in inet6_opt_next()
539 			return(optp + optlen - (u_int8_t *)extbuf);  in inet6_opt_next()
549 inet6_opt_find(void *extbuf, socklen_t extlen, int offset, u_int8_t type,  in inet6_opt_find()
552 	u_int8_t *optp, *lim;  in inet6_opt_find()
558 	lim = (u_int8_t *)extbuf + extlen;  in inet6_opt_find()
566 		optp = (u_int8_t *)((struct ip6_hbh *)extbuf + 1);  in inet6_opt_find()
569 		optp = (u_int8_t *)extbuf + offset;  in inet6_opt_find()
579 			return(optp + optlen - (u_int8_t *)extbuf);  in inet6_opt_find()
595 	memcpy(val, (u_int8_t *)databuf + offset, vallen);  in inet6_opt_get_val()