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getservbyname() z/OS Communications Server: IP Sockets Application Programming Interface Guide and Reference SC27-3660-00 |
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The getservbyname() call searches the hlq.ETC.SERVICES data set for the specified service name. Service name searches must match the protocol, if a protocol is stated. The getservbyname() call returns a pointer to a servent structure for the network service specified on the call.
The servent structure
is defined in the NETDB.H header file and contains the following elements:
Return valuesThe return value points to static data that is overwritten by subsequent calls. Points to a servent structure indicates success. A NULL pointer indicates an error or end-of-file. When a NULL pointer or 0 is returned, the value of errno is indeterminate, and therefore, the output from a tcperror() call cannot be validated. Related callsendservant(), getservbyport(), getservent(), setservent() |
Copyright IBM Corporation 1990, 2014
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