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t_error(3c)

Standard C Library Functions                                       t_error(3C)



NAME
       t_error - produce error message

SYNOPSIS
       #include <xti.h>

       int t_error(const char *errmsg);

DESCRIPTION
       This  routine  is part of the XTI interfaces which evolved from the TLI
       interfaces. XTI represents the future evolution  of  these  interfaces.
       However,  TLI  interfaces are supported for compatibility. When using a
       TLI routine that has the same name as  an  XTI  routine,  the  tiuser.h
       header file must be used. Refer to the TLI  COMPATIBILITY section for a
       description of differences between the two interfaces.


       The t_error() function produces a message on the standard error  output
       which describes the last error encountered during a call to a transport
       function. The argument string errmsg is a user-supplied  error  message
       that gives context to the error.


       The error message is written as follows: first (if errmsg is not a null
       pointer and the character pointed to be errmsg is not the null  charac‐
       ter)  the  string pointed to by errmsg followed by a colon and a space;
       then a standard error message string for the current error  defined  in
       t_errno.  If  t_errno  has a value different from TSYSERR, the standard
       error message string is followed by a newline character.  If,  however,
       t_errno  is  equal  to  TSYSERR,  the t_errno string is followed by the
       standard error message string for the current error  defined  in  errno
       followed by a newline.


       The  language for error message strings written by t_error() is that of
       the current locale. If it is English, the error message string describ‐
       ing the value in t_errno may be derived from the comments following the
       t_errno codes defined in xti.h.  The  contents  of  the  error  message
       strings describing the value in errno are the same as those returned by
       the strerror(3C) function with an argument of errno.


       The error number, t_errno, is only set when an error occurs and  it  is
       not cleared on successful calls.

EXAMPLES
       If  a  t_connect(3C) function fails on transport endpoint fd2 because a
       bad address was given, the following call might follow the failure:

         t_error("t_connect failed on fd2");



       The diagnostic message to be printed would look like:

         t_connect failed on fd2: incorrect addr format



       where  incorrect  addr  format  identifies  the  specific  error   that
       occurred,  and  t_connect  failed  on fd2 tells the user which function
       failed on which transport endpoint.

RETURN VALUES
       Upon completion, a value of 0 is returned.

VALID STATES
       All - apart from T_UNINIT

ERRORS
       No errors are defined for the t_error() function.

TLI COMPATIBILITY
       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  value  that can be set by the XTI interface and cannot be
       set by the TLI interface is:


       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 LevelSafe


SEE ALSO
       strerror(3C), t_errno(3C), attributes(7)



Oracle Solaris 11.4               14 May 2018                      t_error(3C)
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