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Unsupported Configuration Information Functions

The following TCP/IP configuration information functions are presently not supported under CICS. Dummy placeholder functions exist for them that return either NULL, -1, or no return value, in keeping with the function's return value declaration of pointer, int , or void .

Unsupported Functions under CICS

Function	Return Value
gethostent	NULL
sethostent	-1
endhostent	void
herror	void
getservbyname	NULL
getservbyport	NULL
getservent	NULL
setservent	void
endservent	void
getprotobyname	NULL
getprotobynumber	NULL
getprotoent	NULL
setprotoent	void
endprotoent	void
getnetbyname	NULL
getnetbyaddr	NULL
getnetent	NULL
setnetent	void
endnetent	void
res_mkquery	-1
res_init	-1
res_send	-1
dn_comp	-1
dn_expand	-1

herrno and _res are not supported under CICS. The use of these functions will probably cause an ASRA error. socketpair is also unsupported.

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