Probably you need to upgrade to 3.0.2b - this has to do with buggy
regex libraries and my failure to make a good workaround.
M
Dean White wrote:
> I keep getting seg faults with my replace_patterns portion of edit_line.
> Here’s a code snippet that correctly works:
>
>
>
> bundle edit_line shadow
>
>
>
> {
>
>
>
> delete_lines:
>
>
>
> "root.*";
>
>
>
> insert_lines:
>
>
>
> "root:$1$TypicalHashEncoding:13949:0:99999:7:::" location => start;
>
>
>
> }
>
>
>
> Now, if I add this to that edit_line bundle:
>
>
>
> replace_patterns:
>
>
>
> "user.*" replace_with =>
> With("user:$1$AnotherHashEnconding:13935:0:99999:7:::");
>
>
>
> It will seg fault. I thought maybe it was from non-alphanumeric
> characters, so I put this in:
>
>
>
> "user.*" replace_with => With("user");
>
>
>
> And it still seg faults. The With body is straight from the
> documentation/examples as follows:
>
>
>
> body replace_with With(x)
>
>
>
> {
>
> replace_value => "$(x)";
>
> occurrences => "all";
>
> }
>
>
>
> The edit_line gets called as follows:
>
>
>
> bundle agent main
>
>
>
> {
>
>
>
> … other non-related code …
>
>
>
> files:
>
>
>
> “/etc/shadow”
>
>
>
> create => “true”,
>
> edit_line => shadow,
>
> edit_defaults => def;
>
>
>
> }
>
>
>
> The edit_defaults is thus:
>
>
>
> body edit_defaults def
>
> {
>
> empty_file_before_editing => "false";
>
> edit_backup => "false";
>
> max_file_size => "100000";
>
> }
>
>
>
> Output from gdb:
>
>
>
> #0 0x00723f03 in regexec@@GLIBC_2.3.4 () from /lib/libc.so.6
>
> #1 0x0808d85a in RegExMatchSubString ()
>
> #2 0x08069d52 in ReplacePatterns ()
>
> #3 0x0806abb0 in VerifyPatterns ()
>
> #4 0x0808bb0a in ExpandPromiseAndDo ()
>
> #5 0x0808c1e3 in ExpandPromise ()
>
> #6 0x0806b318 in ScheduleEditLineOperations ()
>
> #7 0x08066bdf in ScheduleEditOperation ()
>
> #8 0x08061654 in VerifyFilePromise ()
>
> #9 0x0804c88c in LocateFilePromiserGroup ()
>
> #10 0x0804ce67 in FindFilePromiserObjects ()
>
> #11 0x0804ce8a in FindAndVerifyFilesPromises ()
>
> #12 0x0804b480 in KeepAgentPromise ()
>
> #13 0x0808bb0a in ExpandPromiseAndDo ()
>
> #14 0x0808c1e3 in ExpandPromise ()
>
> #15 0x0804b716 in ScheduleAgentOperations ()
>
> #16 0x0804b8c6 in KeepPromiseBundles ()
>
> #17 0x0804c3b5 in KeepPromises ()
>
> #18 0x0804c7d4 in main ()
>
>
>
> Any suggestions?
>
>
> ------------------------------------------------------------------------
>
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> Bug-cfengine@cfengine.org
> https://cfengine.org/mailman/listinfo/bug-cfengine
--
Mark Burgess
-------------------------------------------------
Professor of Network and System Administration
Oslo University College, Norway
Personal Web: http://www.iu.hio.no/~mark
Office Telf : +47 22453272
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