[Bug libc/18588] New: crypt "leaks" ENOENT

["akshay.moghe at gmail dot com" <sourceware-bugzilla at sourceware dot org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=18588

            Bug ID: 18588
           Summary: crypt "leaks" ENOENT
           Product: glibc
           Version: 2.21
            Status: NEW
          Severity: normal
          Priority: P2
         Component: libc
          Assignee: unassigned at sourceware dot org
          Reporter: akshay.moghe at gmail dot com
                CC: drepper.fsp at gmail dot com
  Target Milestone: ---

Running:
--------

Linux 3.13.0-55-generic on Fedora release 22 (Twenty Two)

GNU C Library (GNU libc) stable release version 2.21
Compiled by GNU CC version 5.0.0 20150217 (Red Hat 5.0.0-0.15).


Issue
-----

On a successful call to crypt_r using a salt that employs the use of SHA512
("$6$saltedsalted6464$") even when the function returns a valid hash, the errno
is set to ENOENT. Presumably this is due to the fips check (failing because of
missing proc entry).

One can make a case for this errno to be cleared on successful execution of the
function.

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