SCTP\_OPT\_INFO(3) Linux Programmer's Manual SCTP\_OPT\_INFO(3)

# [NAME](#NAME)

sctp\_optinfo - Get options on a SCTP socket.

# [SYNOPSIS](#SYNOPSIS)

```
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/sctp.h>

int sctp_opt_info(int sd, sctp_assoc_t id, int opt,
                  void * arg, socklen_t * size);
```

# [DESCRIPTION](#DESCRIPTION)

**sctp\_opt\_info** is a wrapper library function that can be used to get SCTP level options on a socket. *sd* is the socket descriptor for which the option is requested. For one-to-many style sockets, *id* specifies the association to query. For one-to-one style sockets, *id* is ignored. *opt* specifes the SCTP socket option to get. *arg* is an option-specific structure buffer provided by the caller. *size* is a value-result parameter, initially containing the size of the buffer pointed to by *arg* and modifed on return to indicate the actual size of the value returned.

# [RETURN VALUE](#RETURN_VALUE)

On success, **sctp\_opt\_info** returns 0 and on failure -1 is returned with errno set to the appropriate error code.

# [SEE ALSO](#SEE_ALSO)

[**sctp**(7)](/man/os/libsctp/sctp.7) [**sctp\_bindx**(3)](/man/os/libsctp/sctp_bindx.3), [**sctp\_connectx**(3)](/man/os/libsctp/sctp_connectx.3), [**sctp\_sendmsg**(3)](/man/os/libsctp/sctp_sendmsg.3), [**sctp\_sendv**(3)](/man/os/libsctp/sctp_sendv.3), [**sctp\_send**(3)](/man/os/libsctp/sctp_send.3), [**sctp\_recvmsg**(3)](/man/os/libsctp/sctp_recvmsg.3), [**sctp\_recvv**(3)](/man/os/libsctp/sctp_recvv.3), [**sctp\_peeloff**(3)](/man/os/libsctp/sctp_peeloff.3), [**sctp\_getpaddrs**(3)](/man/os/libsctp/sctp_getpaddrs.3), [**sctp\_getladdrs**(3)](/man/os/libsctp/sctp_getladdrs.3),

2004-01-30 Linux 2.6

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Document: sctp_opt_info(3) from libsctp 1.0.21-r5 (Chainguard OS)
Source: https://github.com/sctp/lksctp-tools