z/OS Communications Server: IP IMS Sockets Guide
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Parameters returned by the application

z/OS Communications Server: IP IMS Sockets Guide
SC27-3653-00

ERRNO
A fullword binary field. If RETCODE is negative, this contains an error number. See Return codes for information about ERRNO return codes.
RETCODE
A fullword binary field.
Value
Meaning
<0
Check ERRNO for an error code.
0
Connection partner has closed connection.
>0
Number of bytes sent.
Parent topic: WRITEV

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