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t_errno(3c)

Standard C Library Functions                                       t_errno(3C)



NAME
       t_errno - XTI error return value

SYNOPSIS
       #include <xti.h>

DESCRIPTION
       This error return value is part of the XTI interfaces that evolved from
       the TLI interfaces. XTI represents the future evolution of these inter‐
       faces.  However,  TLI  interfaces are supported for compatibility. When
       using a TLI interface that has the same name as  an  XTI  interface,  a
       different  headerfile,  <tiuser.h>, must be used. Refer to the TLI COM‐
       PATIBILITY section for a description of  differences  between  the  two
       interfaces.


       t_errno is used by XTI functions to return error values.


       XTI functions provide an error number in t_errno which has type int and
       is defined in <xti.h>. The value of t_errno will be defined only  after
       a  call  to  a XTI function for which it is explicitly stated to be set
       and until it is changed by the next XTI function  call.  The  value  of
       t_errno  should  only be examined when it is indicated to be valid by a
       function's return value.  Programs  should  obtain  the  definition  of
       t_errno  by  the inclusion of <xti.h>. The practice of defining t_errno
       in program as extern  int  t_errno is obsolescent. No XTI function sets
       t_errno to 0 to indicate an error.


       It  is  unspecified  whether  t_errno  is a macro or an identifier with
       external linkage. It represents a modifiable lvalue of type int.  If  a
       macro definition is suppressed in order to access an actual object or a
       program defines an identifier with name t_errno, the behavior is  unde‐
       fined.


       The symbolic values stored in t_errno by an XTI function are defined in
       the ERRORS sections in all relevant XTI function definition pages.

TLI COMPATIBILITY
       t_errno is also used by TLI functions to return error values.


       The XTI and TLI interface definitions have common names but use differ‐
       ent  header files. This, and other semantic differences between the two
       interfaces are described in the subsections below.

   Interface Header
       The XTI interfaces use the header file, <xti.h>. TLI interfaces  should
       not use this header. They should use the header:
         #include <tiuser.h>

   Error Description Values
       The  t_errno  values that can be set by the XTI interface but cannot be
       set by the TLI interface are:
         TNOSTRUCTYPE
         TBADNAME
         TBADQLEN
         TADDRBUSY
         TINDOUT
         TPROVMISMATCH
         TRESADDR
         TQFULL
         TPROTO

ATTRIBUTES
       See attributes(7) for descriptions of the following attributes:


       tab() box; cw(2.75i) |cw(2.75i) lw(2.75i) |lw(2.75i) ATTRIBUTE  TYPEAT‐
       TRIBUTE VALUE _ MT-LevelMT-Safe


SEE ALSO
       attributes(7)



Oracle Solaris 11.4               15 Apr 2019                      t_errno(3C)
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