sctp_bindx(3)

sctp_bindx3

Bind or unbind an sctp socket to a list of addresses

Usage

#include <sys/types.h>

#include <sys/socket.h>

#include <netinet/sctp.h>

int

sctp_bindx(int s, struct sockaddr *addrs, int num, int type);

Library

Standard C Library (libc, -lc)

Overview

The sctp_bindx() call binds or unbinds a address or a list of addresses to an SCTP endpoint. This allows a user to bind a subset of addresses. The sctp_bindx() call operates similarly to bind() but allows a list of addresses and also allows a bind or an unbind. The argument s must be a valid SCTP socket descriptor. The argument addrs is a list of addresses (where the list may be only 1 in length) that the user wishes to bind or unbind to the socket. The argument type must be one of the following values.

SCTP_BINDX_ADD_ADDR This value indicates that the listed address(es) need to be added to the endpoint.

SCTP_BINDX_REM_ADDR This value indicates that the listed address(es) need to be removed from the endpoint.

Note that when a user adds or deletes an address to an association if the dynamic address flag net.inet.sctp.auto_asconf is enabled any associations in the endpoint will attempt to have the address(es) added dynamically to the existing association.

Return values

The call returns 0 on success and -1 upon failure.

Errors

The sctp_bindx() function can return the following errors:

[EINVAL]

This value is returned if the type field is not one of the allowed values (see above).

[ENOMEM]

This value is returned if the number of addresses being added causes a memory allocation failure in the call.

[EBADF]

The argument s is not a valid descriptor.

[ENOTSOCK]

The argument s is not a socket.

Releases

44 releases since FreeBSD 7.0-RELEASE; the text changed 31 times.

  1. 7.0
  2. 7.1
  3. 7.2
  4. 7.3
  5. 7.4
  6. 8.0
  7. 8.1
  8. 8.2
  9. 8.3
  10. 8.4
  11. 9.0
  12. 9.1
  13. 9.2
  14. 9.3
  15. 10.0
  16. 10.1
  17. 10.2
  18. 10.3
  19. 10.4
  20. 11.0
  21. 11.1
  22. 11.2
  23. 11.3
  24. 11.4
  25. 12.0
  26. 12.1
  27. 12.2
  28. 12.3
  29. 12.4
  30. 13.0–13.2
  31. 13.3–14.5
  32. 15.0–16.0

Standards

The sctp_bindx() function conforms to RFC 6458.

From base 16.0-CURRENT-20261027-61c70dc16a79 in FreeBSD 16.0-CURRENT (2026-10-27). Parsed by carta from the page's mdoc source.