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inet6_rthdr_segments()

Count the segments in an IPv6 routing header

Synopsis:

#include <netinet/in.h>


int inet6_rthdr_segments(const struct cmsghdr *cmsg);

Arguments:

cmsg
A pointer to Ancillary data containing a routing header.

Library:

libsocket

Use the -l socket option to qcc to link against this library.

Description:

inet6_rthdr_segments()

This function returns the number of segments (addresses) contained in the Routing header described by cmsg.

Returns:

1 to 23
Success.
-1
An error has occurred.

Classification:

RFC 2292

Safety:
Cancellation point No
Interrupt handler No
Signal handler Yes
Thread Yes

See also:

inet6_rthdr_add(), inet6_rthdr_getaddr(), inet6_rthdr_getflags(), inet6_rthdr_init(), inet6_rthdr_lasthop(), inet6_rthdr_reverse(), inet6_rthdr_space()

Based on:


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