[Bug libc/4656] New: FILE* operations are not robust enough with signals

["madcoder at debian dot org" <sourceware-bugzilla at sourceware dot org>]

when reprograming signals (using e.g. sigaction) and disabling SA_RESTART, so 
that write isn't restarted on EINTR, fputs/fwrite/... may end up losing their 
local buffer.

attached is a patch fixing the problem.

-- 
           Summary: FILE* operations are not robust enough with signals
           Product: glibc
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: libc
        AssignedTo: drepper at redhat dot com
        ReportedBy: madcoder at debian dot org
                CC: glibc-bugs at sources dot redhat dot com


http://sourceware.org/bugzilla/show_bug.cgi?id=4656

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