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Re: [bug-patch] FW: patch-2.7: "make check" problem on HP NonStop: we ca


From: Joachim Schmitz
Subject: Re: [bug-patch] FW: patch-2.7: "make check" problem on HP NonStop: we can't open() a symlink
Date: Thu, 13 Sep 2012 15:17:35 +0200

> From: Andreas Gr├╝nbacher [mailto:address@hidden
> Sent: Thursday, September 13, 2012 2:30 PM
> To: Joachim Schmitz
> Cc: address@hidden
> Subject: Re: FW: patch-2.7: "make check" problem on HP NonStop: we can't 
> open() a symlink
> 
> Joachim,
> 
> 2012/9/13 Joachim Schmitz <address@hidden>:
> > FYI, not sure whether it made it to the list,
> 
> it seems not. Thanks for the bug report.
> 
> > -----Original Message-----
> > From: Joachim Schmitz [mailto:address@hidden
> > Sent: Thursday, September 13, 2012 12:02 PM
> > To: 'address@hidden'
> > Subject: patch-7.2: "make check" problem on HP NonStop: we can't open() a 
> > symlink
> >
> > .patch-2.7/tests $ make check
> > make  check-TESTS
> > .
> > PASS: crlf-handling
> > XFAIL: dash-o-append
> > PASS: empty-files
> > .
> > PASS: remember-reject-files
> > FAIL: symlinks
> > PASS: unmodified-files
> > ============================================================================
> > Testsuite summary for GNU patch 2.7
> > ============================================================================
> > # TOTAL: 34
> > # PASS:  32
> > # SKIP:  0
> > # XFAIL: 1
> > # FAIL:  1
> > # XPASS: 0
> > # ERROR: 0
> > ============================================================================
> > See tests/test-suite.log
> > Please report to address@hidden
> > ./patch-2.7/tests $ cat test-suite.log
> > =========================================
> >    GNU patch 2.7: tests/test-suite.log
> > =========================================
> >
> > # TOTAL: 34
> > # PASS:  32
> > # SKIP:  0
> > # XFAIL: 1
> > # FAIL:  1
> > # XPASS: 0
> > # ERROR: 0
> >
> > .. contents:: :depth: 2
> >
> > XFAIL: dash-o-append
> > ====================
> >
> > * patch -o a.new a < a.diff
> > FAILED
> > expected:
> > patching file a
> > patching file a
> > got:
> > patching file a.new (read from a)
> > patching file a.new (read from a)
> > Hunk #1 FAILED at 1.
> > 1 out of 1 hunk FAILED -- saving rejects to file a.new.rej
> > * cat a.new
> > FAILED
> > expected:
> > two
> > three
> > got:
> > two
> > one
> > 2 tests (0 passed, 2 failed)
> >
> > FAIL: symlinks
> > ==============
> >
> > * ln -s f l
> > ok
> > * patch < create.diff || echo "Status: $?"
> > FAILED
> > expected:
> > File l is not a regular file -- can't patch
> > 1 out of 1 hunk ignored -- saving rejects to file l.rej
> > Status: 1
> > got:
> > File l is not a regular file -- can't patch
> > ./patch-2.7/src/patch: **** Can't create temporary file ./l.oVcCGDA : 
> > Invalid function argument
> > Status: 2
> > * cat f
> > ok
> > * ln -s f l
> > ok
> > * patch < modify.diff || echo "Status: $?"
> > FAILED
> > expected:
> > File l is not a regular file -- can't patch
> > 1 out of 1 hunk ignored -- saving rejects to file l.rej
> > Status: 1
> > got:
> > File l is not a regular file -- can't patch
> > ./patch-2.7/src/patch: **** Can't create temporary file ./l.oiCjgkU : 
> > Invalid function argument
> > Status: 2
> > * ln -s f l
> > ok
> > * patch < delete.diff || echo "Status: $?"
> > FAILED
> > expected:
> > File l is not a regular file -- can't patch
> > 1 out of 1 hunk ignored -- saving rejects to file l.rej
> > Status: 1
> > got:
> > File l is not a regular file -- can't patch
> > ./patch-2.7/src/patch: **** Can't create temporary file ./l.olx81mW : 
> > Invalid function argument
> > Status: 2
> > * patch -p1 < create-symlink.diff || echo "Status: $?"
> > ok
> > * echo a > target1 && cat symlink
> > ok
> > * echo b > target1 && cat symlink
> > ok
> > * patch -p1 < modify-symlink.diff || echo "Status: $?"
> > FAILED
> > expected:
> > patching symbolic link symlink
> > got:
> > ./patch-2.7/src/patch: **** Can't create temporary file ./symlink.oTJw5jX : 
> > Invalid function argument
> > Status: 2
> > * echo a > target2 && cat symlink
> > FAILED
> > expected:
> > a
> > got:
> > cat: cannot open symlink
> > * echo b > target2 && cat symlink
> > FAILED
> > expected:
> > b
> > got:
> > cat: cannot open symlink
> > * patch -p1 < delete-symlink.diff || echo "Status: $?"
> > FAILED
> > expected:
> > patching symbolic link symlink
> > got:
> > ./patch-2.7/src/patch: **** Can't create temporary file ./symlink.otlv6CR : 
> > Invalid function argument
> > Status: 2
> > * test ! -L symlink
> > FAILED
> > * patch -p1 --backup < create-symlink.diff || echo "Status: $?"
> > FAILED
> > expected:
> > patching symbolic link symlink
> > got:
> > The next patch would create the file symlink,
> > which already exists!  Assume -R? [n]
> > Apply anyway? [n]
> > Skipping patch.
> > ./patch-2.7/src/patch: **** Can't create temporary file /tmp/poUilvEh : 
> > Invalid function argument
> > Status: 2
> > * test -f symlink.orig && test ! -s symlink.orig
> > FAILED
> > * patch -p1 --backup < modify-symlink.diff || echo "Status: $?"
> > FAILED
> > expected:
> > patching symbolic link symlink
> > got:
> > ./patch-2.7/src/patch: **** Can't create temporary file ./symlink.oGNmIDV : 
> > Invalid function argument
> > Status: 2
> > * echo a > symlink.orig && cat target1
> > FAILED
> > expected:
> > a
> > got:
> > cat: cannot open target1
> > * echo b > symlink.orig && cat target1
> > FAILED
> > expected:
> > b
> > got:
> > cat: cannot open target1
> > * patch -p1 --backup < delete-symlink.diff || echo "Status: $?"
> > FAILED
> > expected:
> > patching symbolic link symlink
> > got:
> > ./patch-2.7/src/patch: **** Can't create temporary file ./symlink.osxQKXD : 
> > Invalid function argument
> > Status: 2
> > * echo a > symlink.orig && cat target2
> > FAILED
> > expected:
> > a
> > got:
> > cat: cannot open target2
> > * echo b > symlink.orig && cat target2
> > FAILED
> > expected:
> > b
> > got:
> > cat: cannot open target2
> > 23 tests (7 passed, 16 failed)
> >
> > .patch-2.7/tests $
> >
> > That error gets generated on 2 places of scr/util.c, pretty close to one 
> > another.
> >
> >   for(;;)
> >     {
> >       int fd;
> >
> >       if (gen_tempname (template, 0, flags, GT_NOCREATE))
> >         pfatal ("Can't create temporary file %s", template);
> >     retry:
> >       fd = open (template, O_CREAT | O_EXCL | flags, mode);
> >       if (fd == -1)
> >         {
> >           if (errno == try_makedirs_errno)
> >             {
> >               makedirs (template);
> >               /* FIXME: When patch fails, this may leave around empty
> >                  directories.  */
> >               try_makedirs_errno = 0;
> >               goto retry;
> >             }
> >           if (errno == EEXIST)
> >             continue;
> >           pfatal ("Can't create temporary file %s", template);
> >         }
> >       *name = template;
> >       return fd;
> >     }
> >
> > Further testing showed that we hit the 2nd occurrence. Seems the open() 
> > doesn't like the mode parameter 0120777, and the S_IFLNK
> > part of it in particular, and indeed HP NonStop only supports the file type 
> > bits S_IFREG, S_ISVTX and S_SYNC.
> >
> > Any ideas how to fix it? Is it fixable at all? Should I just ignore that 
> > failed test?
> 
> We only need to pass the file permissions here. How about this patch?
> 
> diff --git a/src/patch.c b/src/patch.c
> index febfd42..1c6fb4b 100644
> --- a/src/patch.c
> +++ b/src/patch.c
> @@ -297,7 +297,8 @@ main (int argc, char **argv)
> 
>        tmpoutst.st_size = -1;
>        outfd = make_tempfile (&TMPOUTNAME, 'o', outname,
> -                          O_WRONLY | binary_transput, instat.st_mode);
> +                          O_WRONLY | binary_transput,
> +                          instat.st_mode & S_IRWXUGO);
>        TMPOUTNAME_needs_removal = 1;
>        if (diff_type == ED_DIFF) {
>       outstate.zero_output = false;
> 


Yes, it does, thanks!

Only have that XFAIL on dash-o-append remaining. Guess that X stands for 
eXpected?

Bye, Jojo




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