GAI_STRERROR(3)            POSIX Programmer's Manual           GAI_STRERROR(3)



PROLOG
       This manual page is part of the POSIX Programmer's Manual.  The OS
       implementation of this interface may differ (consult the corresponding
       OS manual page for details of OS behavior), or the interface may not be
       implemented on OS.

NAME
       gai_strerror -- address and name information error description

SYNOPSIS
       #include <netdb.h>

       const char *gai_strerror(int ecode);

DESCRIPTION
       The gai__strerror() function shall return a text string describing an
       error value for the getaddrinfo() and getnameinfo() functions listed in
       the <netdb.h> header.

       When the ecode argument is one of the following values listed in the
       <netdb.h> header:

       [EAI_AGAIN]      [EAI_NONAME]
       [EAI_BADFLAGS]   [EAI_OVERFLOW]
       [EAI_FAIL]       [EAI_SERVICE]
       [EAI_FAMILY]     [EAI_SOCKTYPE]
       [EAI_MEMORY]     [EAI_SYSTEM]

       the function return value shall point to a string describing the error.
       If the argument is not one of those values, the function shall return a
       pointer to a string whose contents indicate an unknown error.

RETURN VALUE
       Upon successful completion, gai__strerror() shall return a pointer to an
       implementation-defined string.

ERRORS
       No errors are defined.

       The following sections are informative.

EXAMPLES
       None.

APPLICATION USAGE
       None.

RATIONALE
       None.

FUTURE DIRECTIONS
       None.

SEE ALSO
       freeaddrinfo()

       The Base Definitions volume of POSIX.1-2017, <netdb.h>

COPYRIGHT
       Portions of this text are reprinted and reproduced in electronic form
       from IEEE Std 1003.1-2017, Standard for Information Technology --
       Portable Operating System Interface (POSIX), The Open Group Base
       Specifications Issue 7, 2018 Edition, Copyright (C) 2018 by the
       Institute of Electrical and Electronics Engineers, Inc and The Open
       Group.  In the event of any discrepancy between this version and the
       original IEEE and The Open Group Standard, the original IEEE and The
       Open Group Standard is the referee document. The original Standard can
       be obtained online at http://www.opengroup.org/unix/online.html .

       Any typographical or formatting errors that appear in this page are
       most likely to have been introduced during the conversion of the source
       files to man page format. To report such errors, see
       https://www.kernel.org/doc/man-pages/reporting_bugs.html .



IEEE/The Open Group                  2017                      GAI_STRERROR(3)
