int
mb_put_mem(struct mbdata *mbp, const char *source, size_t size)
{
struct mbuf *m;
char * dst;
size_t cplen;
int error;
if (size == 0)
return 0;
m = mbp->mb_cur;
if ((error = m_getm(m, size, &m)) != 0)
return error;
while (size > 0) {
cplen = M_TRAILINGSPACE(m);
if (cplen == 0) {
m = m->m_next;
continue;
}
if (cplen > size)
cplen = size;
dst = mtod(m, char *) + m->m_len;
if (source) {
bcopy(source, dst, cplen);
source += cplen;
} else
bzero(dst, cplen);
size -= cplen;
m->m_len += cplen;
mbp->mb_count += cplen;
}
mbp->mb_pos = mtod(m, char *) + m->m_len;
mbp->mb_cur = m;
return 0;
}
int
smb_rq_dmem(struct mbdata *mbp, char *src, size_t size)
{
struct mbuf *m;
char * dst;
int cplen, error;
if (size == 0)
return 0;
m = mbp->mb_cur;
if ((error = m_getm(m, size, &m)) != 0)
return error;
while (size > 0) {
cplen = M_TRAILINGSPACE(m);
if (cplen == 0) {
m = m->m_next;
continue;
}
if (cplen > (int)size)
cplen = size;
dst = mtod(m, char *) + m->m_len;
nls_mem_toext(dst, src, cplen);
size -= cplen;
src += cplen;
m->m_len += cplen;
mbp->mb_count += cplen;
}
mbp->mb_pos = mtod(m, char *) + m->m_len;
mbp->mb_cur = m;
return 0;
}
int
mb_put_mem(struct mbchain *mbp, c_caddr_t source, int size, int type)
{
struct mbuf *m;
caddr_t dst;
c_caddr_t src;
int cplen, error, mleft, count;
size_t srclen, dstlen;
m = mbp->mb_cur;
mleft = mbp->mb_mleft;
while (size > 0) {
if (mleft == 0) {
if (m->m_next == NULL)
m = m_getm(m, size, M_WAIT, MT_DATA);
else
m = m->m_next;
mleft = M_TRAILINGSPACE(m);
continue;
}
cplen = mleft > size ? size : mleft;
srclen = dstlen = cplen;
dst = mtod(m, caddr_t) + m->m_len;
switch (type) {
case MB_MCUSTOM:
srclen = size;
dstlen = mleft;
error = mbp->mb_copy(mbp, source, dst, &srclen, &dstlen);
if (error)
return error;
break;
case MB_MINLINE:
for (src = source, count = cplen; count; count--)
*dst++ = *src++;
break;
case MB_MSYSTEM:
bcopy(source, dst, cplen);
break;
case MB_MUSER:
error = copyin(source, dst, cplen);
if (error)
return error;
break;
case MB_MZERO:
bzero(dst, cplen);
break;
}
size -= srclen;
source += srclen;
m->m_len += dstlen;
mleft -= dstlen;
mbp->mb_count += dstlen;
}
mbp->mb_cur = m;
mbp->mb_mleft = mleft;
return 0;
}
int
mb_put_mem(struct mbchain *mbp, const char *source, size_t size, int type)
{
struct mbuf *m;
char *dst;
const char *src;
int error;
size_t cplen, mleft, count;
m = mbp->mb_cur;
mleft = mbp->mb_mleft;
while (size > 0) {
if (mleft == 0) {
if (m->m_next == NULL) {
m = m_getm(m, size, M_WAIT, MT_DATA);
if (m == NULL)
return ENOBUFS;
}
m = m->m_next;
mleft = M_TRAILINGSPACE(m);
continue;
}
cplen = mleft > size ? size : mleft;
dst = mtod(m, char *) + m->m_len;
switch (type) {
case MB_MCUSTOM:
error = mbp->mb_copy(mbp, source, dst, cplen);
if (error)
return error;
break;
case MB_MINLINE:
for (src = source, count = cplen; count; count--)
*dst++ = *src++;
break;
case MB_MSYSTEM:
memcpy(dst, source, cplen);
break;
case MB_MUSER:
error = copyin(source, dst, cplen);
if (error)
return error;
break;
case MB_MZERO:
memset(dst, 0, cplen);
break;
}
size -= cplen;
source += cplen;
m->m_len += cplen;
mleft -= cplen;
mbp->mb_count += cplen;
}
mbp->mb_cur = m;
mbp->mb_mleft = mleft;
return 0;
}
