t_free(3N)

NAME
     t_free - free a library structure

SYNOPSIS
     #ifdef _XOPEN_SOURCE
     #include <xti.h>
     #else
     #include <tiuser.h>
     #endif

     int t_free(ptr, struct_type)
     char *ptr;
     int struct_type;

DESCRIPTION
     The t_free function frees memory previously allocated by t_alloc.  This
     function will free memory for the specified structure, and will also free
     memory for buffers referenced by the structure.

     ptr points to one of the six structure types described for t_alloc, and
     struct_type identifies the type of that structure, which can be one of
     the following:

     T_BIND           struct t_bind

     T_CALL           struct t_call

     T_OPTMGMT        struct t_optmgmt

     T_DIS            struct t_discon

     T_UNITDATA       struct t_unitdata

     T_UDERROR        struct t_uderr

     T_INFO           struct t_info

     where each of these structures is used as an argument to one or more
     transport functions.

     t_free will check the addr, opt, and udata fields of the given structure
     (as appropriate), and free the buffers pointed to by the buf field of the
     netbuf [see intro(3N)] structure.  If buf is NULL, t_free will not
     attempt to free memory.  After all buffers are freed, t_free will free
     the memory associated with the structure pointed to by ptr.

     Undefined results will occur if ptr or any of the buf pointers points to
     a block of memory that was not previously allocated by t_alloc.

     This function resides within both the X/Open compliant libxnet and the
     SVR4 compliant libnsl Network Services libraries.  Network Services
     applications which require X/Open compliance must link-load with -lxnet.
     Network Services applications which require SVR4 compliance must link-
     load with -lnsl.

     On failure, t_errno may be set to the following:

     TSYSERR        A system error has occurred during execution of this
                    function.

     TNOSTRUCTYPE   If _XOPEN_SOURCE is defined, then this t_errno value is
                    returned when an unsupported struct_type is requested.

SEE ALSO
     intro(3N), t_alloc(3N)

DIAGNOSTICS
     t_free returns 0 on success and -1 on failure and t_errno is set to
     indicate the error.