int
mb_get_mem(struct mbdata *mbp, char * target, size_t size)
{
struct mbuf *m = mbp->mb_cur;
u_int count;
while (size > 0) {
if (m == NULL) {
MBERROR(("incomplete copy\n"));
#ifndef EBADRPC
return EINVAL;
#else
return EBADRPC;
#endif
}
count = mb_left(m, mbp->mb_pos);
if (count == 0) {
mbp->mb_cur = m = m->m_next;
if (m)
mbp->mb_pos = mtod(m, char *);
continue;
}
if (count > size)
count = size;
size -= count;
if (target) {
if (count == 1) {
*target++ = *mbp->mb_pos;
} else {
bcopy(mbp->mb_pos, target, count);
target += count;
}
}
mbp->mb_pos += count;
}
int
md_get_mem(struct mdchain *mdp, void *targetv, int size, int type)
{
char *target = targetv;
struct mbuf *m = mdp->md_cur;
int error;
u_int count;
u_char *s;
while (size > 0) {
if (m == NULL) {
#ifdef MCHAIN_DEBUG
MBERROR(("incomplete copy\n"));
#endif
return EBADRPC;
}
s = mdp->md_pos;
count = mtod(m, u_char*) + m->m_len - s;
if (count == 0) {
mdp->md_cur = m = m->m_next;
if (m)
s = mdp->md_pos = mtod(m, void *);
continue;
}
if (count > size)
count = size;
size -= count;
mdp->md_pos += count;
if (target == NULL)
continue;
switch (type) {
case MB_MUSER:
error = copyout(s, target, count);
if (error)
return error;
break;
case MB_MSYSTEM:
bcopy(s, target, count);
break;
case MB_MINLINE:
while (count--)
*target++ = *s++;
continue;
}
target += count;
}
int
md_get_mem(struct mdchain *mdp, caddr_t target, int size, int type)
{
struct mbuf *m = mdp->md_cur;
int error;
u_int count;
u_char *s;
while (size > 0) {
if (m == NULL) {
MBERROR("incomplete copy\n");
return (EBADRPC);
}
s = mdp->md_pos;
count = mtod(m, u_char*) + m->m_len - s;
if (count == 0) {
mdp->md_cur = m = m->m_next;
if (m)
s = mdp->md_pos = mtod(m, caddr_t);
continue;
}
if (count > size)
count = size;
size -= count;
mdp->md_pos += count;
if (target == NULL)
continue;
switch (type) {
case MB_MUSER:
error = copyout(s, target, count);
if (error)
return error;
break;
case MB_MSYSTEM:
bcopy(s, target, count);
break;
case MB_MINLINE:
while (count--)
*target++ = *s++;
continue;
}
target += count;
}
return (0);
}
