47 #define MINDEX(m, k) \  argument
51 	while (k >= len) { \
52 		k -= len; \
61 m_xword(m, k, err)  in m_xword()  argument
63 	register int k, *err;
70 	while (k >= len) {
71 		k -= len;
77 	cp = mtod(m, u_char *) + k;
78 	if (len - k >= 4) {
83 	if (m0 == 0 || m0->m_len + len - k < 4)
87 	switch (len - k) {
90 		return (cp[k] << 24) | (np[0] << 16) | (np[1] << 8) | np[2];
93 		return (cp[k] << 24) | (cp[k + 1] << 16) | (np[0] << 8) | 
97 		return (cp[k] << 24) | (cp[k + 1] << 16) | (cp[k + 2] << 8) |
106 m_xhalf(m, k, err)  in m_xhalf()  argument
108 	register int k, *err;
115 	while (k >= len) {
116 		k -= len;
122 	cp = mtod(m, u_char *) + k;
123 	if (len - k >= 2) {
131 	return (cp[k] << 8) | mtod(m0, u_char *)[0];
152 	register int k;  local
176 			return (u_int)pc->k;
182 			k = pc->k;
183 			if (k + sizeof(long) > buflen) {
189 				A = m_xword((struct mbuf *)p, k, &merr);
198 			if (((int)(p + k) & 3) != 0)
199 				A = EXTRACT_LONG(&p[k]);
202 				A = ntohl(*(long *)(p + k));
206 			k = pc->k;
207 			if (k + sizeof(short) > buflen) {
213 				A = m_xhalf((struct mbuf *)p, k, &merr);
219 			A = EXTRACT_SHORT(&p[k]);
223 			k = pc->k;
224 			if (k >= buflen) {
231 				MINDEX(m, k);
232 				A = mtod(m, u_char *)[k];
238 			A = p[k];
250 			k = X + pc->k;
251 			if (k + sizeof(long) > buflen) {
257 				A = m_xword((struct mbuf *)p, k, &merr);
266 			if (((int)(p + k) & 3) != 0)
267 				A = EXTRACT_LONG(&p[k]);
270 				A = ntohl(*(long *)(p + k));
274 			k = X + pc->k;
275 			if (k + sizeof(short) > buflen) {
281 				A = m_xhalf((struct mbuf *)p, k, &merr);
289 			A = EXTRACT_SHORT(&p[k]);
293 			k = X + pc->k;
294 			if (k >= buflen) {
301 				MINDEX(m, k);
302 				A = mtod(m, char *)[k];
308 			A = p[k];
312 			k = pc->k;
313 			if (k >= buflen) {
320 				MINDEX(m, k);
321 				X = (mtod(m, char *)[k] & 0xf) << 2;
327 			X = (p[pc->k] & 0xf) << 2;
331 			A = pc->k;
335 			X = pc->k;
339 			A = mem[pc->k];
343 			X = mem[pc->k];
347 			mem[pc->k] = A;
351 			mem[pc->k] = X;
355 			pc += pc->k;
359 			pc += (A > pc->k) ? pc->jt : pc->jf;
363 			pc += (A >= pc->k) ? pc->jt : pc->jf;
367 			pc += (A == pc->k) ? pc->jt : pc->jf;
371 			pc += (A & pc->k) ? pc->jt : pc->jf;
425 			A += pc->k;
429 			A -= pc->k;
433 			A *= pc->k;
437 			A /= pc->k;
441 			A &= pc->k;
445 			A |= pc->k;
449 			A <<= pc->k;
453 			A >>= pc->k;
500 				if (from + p->k >= len)
512 		    (p->k >= BPF_MEMWORDS || p->k < 0))
517 		if (p->code == (BPF_ALU|BPF_DIV|BPF_K) && p->k == 0)