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t_getprotaddr(3) Library Functions Manual t_getprotaddr(3) NAME t_getprotaddr - Gets the protocol address LIBRARY XTI Library (libxti.a) SYNOPSIS #include <xti.h> int t_getprotaddr( int fd, struct t_bind *boundaddr, struct t_bind *peeraddr) ; STANDARDS Interfaces documented on this reference page conform to industry stan- dards as follows: t_getprotaddr: XPG4-UNIX Refer to the standards(5) reference page for more information about in- dustry standards and associated tags. PARAMETERS The following table summarizes the relevance of input and output para- meters before and after t_getprotaddr() is called: center, tab (@); lfHB lfHB lfHB l l l. Parameters@Before Call@After Call _ fd@y@n boundaddr->maxlen@y@n boundaddr->addr.len@n@y bound- addr->addr.buf@o@(o) boundaddr->qlen@n@n peeraddr->maxlen@y@n peer- addr->addr.len@n@y peeraddr->addr.buf@o@(o) peeraddr->qlen@n@n Table Notes: This is a meaningful parameter. The content of the object pointed to by y is meaningful. This is a meaningful but optional para- meter. The content of the object pointed to by o is meaningful. This is not a meaningful parameter. Specifies a file descriptor returned by the t_open() function that identifies the transport endpoint through which data is sent. Specifies the location to hold the local address, if any, currently bound to fd. It points to a structure of type t_bind, with the following fields The maximum size of the address buffer. Points to the buffer where the address is to be placed. In re- turn, the buf field of boundaddr points to the address, if any, that is currently bound to fd. Specifies the length of the address. If the transport endpoint is in the T_UNBND state, zero is returned in the len field. Specifies the location to hold the remote address, if any, that is currently connected to fd. It points to a structure of the type t_bind, with the following fields: The maximum size of the address buffer. Points to the buffer where the address is to be placed. The buf field of peeraddr points to the address, if any, currently con- nected to fd. Specifies the length of the address. If the transport endpoint is not in the T_DATAXFER state, zero is returned in this field. VALID STATES The t_getprotaddr() function can be called in all the transport provider states, except T_UNINIT. DESCRIPTION The t_getprotaddr() function returns local and remote protocol ad- dresses currently associated with the transport endpoint specified by fd. RETURN VALUES Upon successful completion, a value of zero is returned. If the trans- port endpoint is in the T_UNBND state, zero is returned in the len field of boundaddr (boundaddr->addr.len). If the transport endpoint is not in the T_DATAXFER state, then zero is returned in the len field of peeraddr (peeraddr->addr.len = 0). On failure, a value of -1 is returned and t_errno is set to indicate the error. ERRORS If the t_getprotaddr() function fails, t_errno may be set to one of the following values: The specified file descriptor does note refer to a transport endpoint. The number of bytes allocated for an incoming ar- gument (maxlen) is greater than zero but not sufficient to store the value of that argument. A system error has occurred during execution of this function. This error indicates that a communication problem has been detected between XTI and the transport provider for which there is no other suitable XTI(t_errno). RELATED INFORMATION Functions: t_bind delim off t_getprotaddr(3)