[Bug libc/13171] New: missing XSI declarations, such as crypt in <unistd.h>

[Bug libc/13171] New: missing XSI declarations, such as crypt in <unistd.h>

[eblake at redhat dot com]

http://sourceware.org/bugzilla/show_bug.cgi?id=13171

             Bug #: 13171
           Summary: missing XSI declarations, such as crypt in <unistd.h>
           Product: glibc
           Version: 2.14
            Status: NEW
          Severity: normal
          Priority: P2
         Component: libc
        AssignedTo: drepper.fsp@gmail.com
        ReportedBy: eblake@redhat.com
    Classification: Unclassified


According to POSIX 2008, crypt() and encrypt() should unconditionally be
declared in <unistd.h> by any implementation claiming to provide XSI.  Yet:

$ printf '#define _POSIX_C_SOURCE 200809L\n#include <unistd.h>\n' \
   | gcc -E - | grep crypt
$

shows 0 hits, and it takes _GNU_SOURCE to convince glibc that we want those
declarations.  The same is true of POSIX 2001.  Likewise for setkey() in
<stdlib.h>.

https://lists.gnu.org/archive/html/bug-gnulib/2011-09/msg00096.html

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[Bug libc/13171] missing XSI declarations, such as crypt in <unistd.h>

[bugdal at aerifal dot cx]

http://sourceware.org/bugzilla/show_bug.cgi?id=13171

Rich Felker <bugdal at aerifal dot cx> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
                 CC|                            |bugdal at aerifal dot cx
         Resolution|                            |INVALID

--- Comment #1 from Rich Felker <bugdal at aerifal dot cx> 2011-09-09 01:45:38 UTC ---
The XSI option is only usable when _XOPEN_SOURCE is defined with an appropriate
value (700 for SUSv4/POSIX 2008, 600 for SUSv3). _POSIX_C_SOURCE does not
request the XSI option. This is in accordance with:

http://pubs.opengroup.org/onlinepubs/9699919799/functions/V2_chap02.html#tag_15_02_01

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[Bug libc/13171] missing XSI declarations, such as crypt in <unistd.h>

[fweimer at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=13171

Florian Weimer <fweimer at redhat dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
              Flags|                            |security-

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