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| TCP/IP Socket Library Support for the CICS and Environment |
For the following I/O functions, IBM CICS TCP/IP imposes a 32768-byte limit for data transmission:
| read | recvfrom | sendmsg | write |
| readv | recvmsg | sendto | writev |
| recv | send |
The library does not check to see if the 32768-byte limit is
exceeded,
but the underlying CICS API socket rejects the request if the limit is exceeded.
The IBM interface requires the vector I/O functions
readv
,
writev
,
sendmsg
, and
recvmsg
to allocate (using
malloc
)
a buffer equal in size to the combined sum of the vector lengths.
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