Connects two sockets. The econnect subroutine is similar to the connect subroutine with the addition of the sec_labels_t pointer. The sec_labels_t pointer indicates the Sensitivity Level (SL) of the outgoing connection request.
Standard C Library (libc.a)
#include <sys/socket.h>
#include <sys/mac.h>int econnect ( Socket, Name, NameLength, Label)
int Socket;
const struct sockaddr *Name;
socklen_t NameLength;
sec_labels_t *Label;The econnect subroutine requests a connection between two sockets, similar to the connect subroutine. The kernel sets up the communication link between the sockets; both sockets must use the same address format and protocol.
The SL specified by the Label parameter is the SL of the outgoing request. The requested SL must be dominated by the current clearance or must have appropriate privileges to clear the MAC check.
| Item | Description |
|---|---|
| Socket | Specifies the unique name of the socket. |
| Name | Specifies the address of the target socket that will form the other end of the communication line. |
| NameLength | Specifies the length of the address structure. |
| Label | Specifies the SL of the outgoing connection request. |
| Item | Description |
|---|---|
| Successful | 0 |
| Unsuccessful | -1 |
The econnect subroutine is unsuccessful if any of the following errors occurs:
| Value | Description |
|---|---|
| EADDRINUSE | The specified address is already in use. |
| EADDRNOTAVAIL | The specified address is not available from the local machine. |
| EAFNOSUPPORT | The addresses in the specified address family cannot be used with this socket. |
| EALREADY | The socket is specified with O_NONBLOCK or O_NDLAY, and a previous connection attempt has not yet completed. |
| EINTR | The attempt to establish a connection was interrupted by delivery of a signal that was caught; the connection will be established asynchronously. |
| EACCES | Search permission was denied on a component of the path prefix or write access to the named socket was denied. |
| ENOBUFS | The system has run out of memory for an internal data structure. |
| EOPNOTSUPP | The socket referenced by the Socket parameter does not support the econnect subroutine. |
| EWOULDBLOCK | The range allocated for TCP/UDP ephemeral ports has been exhausted. |
| EBADF | The Socket parameter is not valid. |
| ECONNREFUSED | The attempt to connect was rejected. |
| EFAULT | The Address parameter is not in a writable part of the user address space. |
| EINPROGRESS | The socket is marked as nonblocking. The connection cannot be immediately completed. The application program can select the socket for writing during the connection process. |
| EINVAL | The specified path name contains a character with the high-order bit set. |
| EISCONN | The socket is already connected. |
| ENETDOWN | The specified physical network is down. |
| ENETUNREACH | No route to the network or host is present. |
| ENOSPC | There is no space left on a device or system table. |
| ENOTCONN | The socket could not be connected. |
| ENOTSOCK | The Socket parameter refers to a file, not a socket. |
| ETIMEDOUT | The establishment of a connection times out before a connection is made. |
| EPERM | The Trusted AIX® MAC check failed. |