.TH CONNECT 2 .SH NAME connect \- connects a socket .SH SYNOPSIS .ft B #include .in +5 .ti -5 int connect(int \fIsd\fP, const struct sockaddr * \fIaddr\fP, socklen_t \fIaddr_len\fP); .br .ft P .SH DESCRIPTION connect() connects the socket \fIsd\fP to a socket listening at address \fIaddr\fP. .SH RETURN VALUES On success, this function returns 0. On error, -1 is returned and \fIerrno\fP is set. .SH ERRORS .TP 15 [EFAULT] The address pointed to by \fIaddr\fP is not in a valid part of the process address space. .TP 15 [EAFNOSUPPORT] The address family of the address pointed to by \fIaddr\fP is not supported by this function. .TP 15 [EINVAL] The address pointed to by \fIaddr\fP is not valid. .TP 15 [ENAMETOOLONG] The sun_path in struct sockaddr_un is too long. .TP 15 [EACCES] The calling process doesn't have permission to perform the connect() operation. .TP 15 [EISCONN] The socket is already connected. .TP 15 [EALREADY] The socket is already in the process of connecting. .TP 15 [ECONNREFUSED] The connection was refused. .SH SEE ALSO .BR socket(2), .BR accept(2)