VMS Help CC, Socket Routines, recvfrom  *Conan The Librarian (sorry for the slow response - running on an old VAX)

    Receives bytes from a socket from any source.

    Syntax:

      #include <types.h>
      #include <socket.h>

    _DECC_V4_SOURCE defined:

      int recvfrom(int s, char *buf, int len, int flags, struct
                    sockaddr *from, int *fromlen);

    _DECC_V4_SOURCE not defined:

      ssize_t recvfrom(int s, void *buf, size_t len, int flags,
                        struct sockaddr *from, size_t *fromlen);