T_FREE(3N)                           SysV                           T_FREE(3N)



NAME
     t_free - free a library structure

SYNOPSIS
     #include <tiuser.h>

     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(3)) 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.

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

ERRORS
     On failure, t_errno may be set to the following:

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

SEE ALSO
     intro(3), t_alloc(3N)
     Programming with the SysV Transport Interface