https://bugs.exim.org/show_bug.cgi?id=1803
--- Comment #21 from Zoltan Herczeg <hzmester@???> ---
Another idea just came to my mind.
It seems that all patterns are compiled by pcre_compile here:
https://github.com/php/php-src/blob/master/ext/pcre/php_pcre.c#L433
Would it be possible to dump all regex compilation to some file after this
call?
E.g.
re = pcre_compile(pattern,
coptions,
&error,
&erroffset,
tables);
FILE *f = fopen("dump_file", "a"); // appending at the end
fprintf(f, "/%s/ 0x%x -> %p\n", pattern, coptions, re);
fclose(f);
It would be easy to find the offending pattern from this list. Just find the
latest entry which has the same address as pce->re.
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