z/OS Communications Server: IP Sockets Application Programming Interface Guide and Reference
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Address family cross reference

z/OS Communications Server: IP Sockets Application Programming Interface Guide and Reference
SC27-3660-00

This information contains AF_INET, AF_INET6, and AF_IUCV address family cross reference information for the following APIs:
  • TCP/IP C socket API
  • X/Open Transport Interface
  • Macro API for IPv4 or IPv6 that is written in z/OS® assembler language
  • Call instruction API for IPv4 or IPv6 socket applications
  • z/OS Communications Server socket API for REXX
  • Pascal language for IPv4 socket API
Address families define different styles of addressing. All hosts in the same addressing family understand and use the same method for addressing socket endpoints. TCP/IP supports the following addressing families:
  • AF_INET
  • AF_INET6
  • AF_IUCV
The AF_INET and AF_INET6 families both define addressing in the internet domain. The AF_IUCV family defines addressing in the IUCV domain. In the IUCV domain, address spaces can use the socket interface to communicate with other address spaces on the same host.
The INET, INET6, and IUCV column entries are:
yes
The call applies to this address family.
no
If you use this call with this address family, an error is returned.
n/a
If you use this call with this address family, no error is returned and the call is not processed.
blank
The call does not apply to this API.
Notes:
  1. Pascal API supports only AF_INET address family.
  2. XTI API supports only AF_INET address family.
  3. INET6 is not supported.
Table 1. C socket address families cross reference
Application Programming Interface (API)
Function C SOCKETS
  INET IUCV
accept() yes yes
bind() yes yes
close() yes yes
connect() yes yes
endhostent() yes n/a
endnetent() yes n/a
endprotoent() yes n/a
endservent() yes n/a
fcntl() yes no
getclientid() yes no
getdtablesize() yes yes
gethostbyaddr() yes no
gethostbyname() yes n/a
gethostent() yes n/a
gethostid() yes no
gethostname() yes no
getibmopt() yes no
getibmsockopt() yes no
getnetbyaddr() yes n/a
getnetbyname() yes n/a
getnetent() yes n/a
getpeername() yes yes
getprotobyname() yes n/a
getprotobynumber() yes n/a
getprotoent() yes n/a
getservbyname() yes n/a
getservbyport() yes n/a
getservent() yes n/a
getsockname() yes yes
getsockopt() yes no
givesocket() yes no
htonl() yes n/a
htons() yes n/a
inet_addr() yes n/a
inet_inaof() yes n/a
inet_makeaddr() yes n/a
inet_netof() yes n/a
inet_network() yes n/a
inet_ntoa() yes n/a
ioctl() yes no
listen() yes yes
maxdesc() yes yes
ntohl() yes n/a
ntohs() yes n/a
read() yes yes
readv() yes yes
recv() yes yes
recvfrom() yes yes
recvmsg() yes yes
select() yes yes
selectex() yes yes
send() yes yes
sendmsg() yes no
sendto() yes no
setibmopt() yes no
setibmsockopt() yes no
sethostent() yes n/a
setnetent() yes n/a
setprotoent() yes n/a
setservent() yes n/a
setsockopt() yes no
shutdown() yes yes
sock_debug() yes yes
sock_do_teststor() yes yes
socket() yes yes
takesocket() yes no
tcperror() yes yes
write() yes yes
writev() yes yes
Note: In the following table, IUCV is not supported.
Table 2. MACRO, CALL, REXX, socket address families cross reference
Application Programming Interface (API)
COMMAND MACRO CALL REXX
  INET INET6 INET INET6 INET INET6
ACCEPT yes yes yes yes yes yes
BIND yes yes yes yes yes yes
BIND2ADDRSEL no yes no yes no yes
CANCEL yes yes        
CLOSE yes yes yes yes yes yes
CONNECT yes yes yes yes yes yes
FCNTL yes yes yes yes yes yes
FREEADDRINFO yes yes yes yes    
GETADDRINFO yes yes yes yes yes yes
GETCLIENTID yes yes yes yes yes yes
GETDOMAINNAME         yes yes
GETHOSTBYADDR yes yes yes yes yes yes
GETHOSTBYNAME yes yes yes yes yes yes
GETHOSTID yes yes yes yes yes yes
GETHOSTNAME yes yes yes yes yes yes
GETIBMOPT yes yes yes yes    
GETNAMEINFO yes yes yes yes yes yes
GETPEERNAME yes yes yes yes yes yes
GETPROTOBYNAME         n/a n/a
GETPROTOBYNUMBER         yes yes
GETSERVBYNAME         yes yes
GETSERVBYPORT         yes yes
GETSOCKNAME yes yes yes yes yes yes
GETSOCKOPT see Table 3 for exceptions. yes yes yes yes yes yes
GIVESOCKET yes yes yes yes yes yes
GLOBAL yes yes yes yes    
INET6_IS_SRCADDR no yes no yes no yes
INITAPI yes yes yes yes    
IOCTL see Table 3 for exceptions. yes yes yes yes yes yes
LISTEN yes yes yes yes yes yes
NTOP yes yes yes yes    
PTON yes yes yes yes    
READ yes yes yes yes yes yes
READV yes yes yes yes    
RECV yes yes yes yes yes yes
RECVFROM yes yes yes yes yes yes
RECVMSG yes yes yes yes    
RESOLVE         yes yes
SELECT yes yes yes yes yes yes
SELECTEX yes yes yes yes    
SEND yes yes yes yes yes yes
SENDMSG yes yes yes yes    
SENDTO yes yes yes yes yes yes
SETSOCKOPT see Table 3 for exceptions. yes yes yes yes yes yes
SHUTDOWN yes yes yes yes yes yes
SOCKET yes yes yes yes yes yes
TAKESOCKET yes yes yes yes yes yes
TASK yes yes yes yes    
TERMAPI yes yes yes yes    
VERSION         yes yes
WRITE yes yes yes yes yes yes
WRITEV yes yes yes yes    
Table 3. MACRO, CALL, REXX, exceptions
Application Programming Interface (API)
COMMAND MACRO CALL REXX
  INET INET6 INET INET6 INET INET6
GETSOCKOPT exceptions
IP_MULTICAST_IF yes no yes no yes no
IP_MULTICAST_LOOP yes no yes no yes no
IP_MULTICAST_TTL yes no yes no yes no
IPV6_ADDR_PREFERENCES no yes no yes no yes
IPV6_MULTICAST_HOPS no yes no yes no yes
IPV6_MULTICAST_IF no yes no yes no yes
IPV6_MULTICAST_LOOP no yes no yes no yes
IPV6_UNICAST_HOPS no yes no yes no yes
IPV6_V6ONLY no yes no yes no yes
SETSOCKOPT exceptions
IP_ADD_MEMBERSHIP yes no yes no yes no
IP_ADD_SOURCE_MEMBERSHIP yes no yes no yes no
IP_BLOCK_SOURCE yes no yes no yes no
IP_DROP_MEMBERSHIP yes no yes no yes no
IP_DROP_SOURCE_MEMBERSHIP yes no yes no yes no
IP_MULTICAST_IF yes no yes no yes no
IP_MULTICAST_LOOP yes no yes no yes no
IP_MULTICAST_TTL yes no yes no yes no
IP_UNBLOCK_SOURCE yes no yes no yes no
IPV6_ADDR_PREFERENCES no yes no yes no yes
IPV6_JOIN_GROUP no yes no yes no yes
IPV6_LEAVE_GROUP no yes no yes no yes
IPV6_MULTICAST_HOPS no yes no yes no yes
IPV6_MULTICAST_IF no yes no yes no yes
IPV6_MULTICAST_LOOP no yes no yes no yes
IPV6_UNICAST_HOPS no yes no yes no yes
IPV6_V6ONLY no yes no yes no yes
IOCTL exceptions
SIOCGHOMEIF6 no yes no yes    
SIOCGIPMSFILTER yes no yes no yes no
SIOCSIPMSFILTER yes no yes no yes no

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