BPX4ACP (accept) example

The following code does an accept to accept a connect request from a client. SOCKDESC was previously set by a call to BPX4SOC. A bind and a listen must also have been previously done. The SOCKADDR was built by the call to BPX4BND. For the callable service, see accept (BPX1ACP, BPX4ACP) — Accept a connection request from a client socket. For the data structure, see BPXYSOCK — Map SOCKADDR structure and constants. AMODE 31 callers use BPX1ACP (accept) example.

                                              
         CALL  BPX4ACP,              Accept a socket connect request   +
               (SOCKDESC,            Input: Socket descriptor          +
               =A(SOCK#LEN+SOCK_SUN#LEN), Input: Length - Sockaddr     +
               SOCKADDR,             Input: Sockaddr structure         +
               RETVAL,               Return value: 0 or -1             +
               RETCODE,              Return code                       +
               RSNCODE),             Reason code                       +
               MF=(E,PLIST)          ---------------------------------- 
         L  R2,RETVAL                                                   
         ST R2,SOCKDES2              Store the new socket descriptor