src/sys/kern/uipc_socket.c - diff

Return to uipc_socket.c CVS log

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Please note that diffs are not public domain; they are subject to the copyright notices on the relevant files.

version 1.6, 1993/09/08 21:12:49

version 1.7, 1993/10/26 22:36:25

Line 332 sosend(so, addr, uio, top, control, flag

resid = uio->uio_resid;

else

resid = top->m_pkthdr.len;

* In theory resid should be unsigned.

* However, space must be signed, as it might be less than 0

* if we over-committed, and we must use a signed comparison

* of space and resid. On the other hand, a negative resid

* causes us to loop sending 0-length segments to the protocol.

if (resid < 0)

return (EINVAL);

dontroute =

(flags & MSG_DONTROUTE) && (so->so_options & SO_DONTROUTE) == 0 &&

(so->so_proto->pr_flags & PR_ATOMIC);

Line 403 restart:

Line 412 restart:

#ifdef MAPPED_MBUFS

len = min(MCLBYTES, resid);

#else

if (top == 0) {

if (atomic && top == 0) {

len = min(MCLBYTES - max_hdr, resid);

m->m_data += max_hdr;

} else

Line 719 dontblock:

Line 728 dontblock:

so->so_state |= SS_RCVATMARK;

break;

}

} else

} else {

offset += len;

if (offset == so->so_oobmark)

break;

}

if (flags & MSG_EOR)

break;