IP_BLOCK_SOURCE(2const)                                IP_BLOCK_SOURCE(2const)

NAME
       IP_BLOCK_SOURCE - stop receiving multicast data from a specific source
       in a given group

LIBRARY
       Standard C library (libc, -lc)

SYNOPSIS
       #include <netinet/in.h>  /* Definition of IP* constants */
       #include <sys/socket.h>

       int setsockopt(int sockfd, IPPROTO_IP, IP_BLOCK_SOURCE,
                      const struct ip_mreq_source *val,
                      sizeof(struct ip_mreq_source));

DESCRIPTION
       Stop receiving multicast data from a specific source in a given group.

       This is valid only after the application has subscribed to the
       multicast group using either IP_ADD_MEMBERSHIP(2const) or
       IP_ADD_SOURCE_MEMBERSHIP(2const).

ERRORS
       See IPPROTO_IP(2const).  See setsockopt(2).  See ip(7).

HISTORY
       Linux 2.4.22, Linux 2.5.68.

SEE ALSO
       IPPROTO_IP(2const), ip_mreq_source(2type), setsockopt(2), ip(7)

Linux man-pages 6.17              2025-11-25           IP_BLOCK_SOURCE(2const)