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Red Hat Bugzilla – Attachment 601256 Details for
Bug 844375
Endless loop inside pcre_exec with PCRE_MULTILINE set
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testing program
pcre_bug.c (text/plain), 900 bytes, created by
Daniel Kopeček
on 2012-07-30 12:51:00 UTC
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Description:
testing program
Filename:
MIME Type:
Creator:
Daniel Kopeček
Created:
2012-07-30 12:51:00 UTC
Size:
900 bytes
patch
obsolete
>#include <stdio.h> >#include <string.h> >#include <pcre.h> > >#define OVEC_LEN 60 >#define BUFLEN 1024*1024*8 > >#define opt_enabled(ch) if (strchr(argv[2], ch) != NULL) > >char buffer[BUFLEN]; > >int main(int argc, char *argv[]) >{ > pcre *regex; > int errors = 0; > const char *errmsg = NULL; > int ovec[OVEC_LEN]; > int ovec_len = OVEC_LEN; > int ofs, ret; > int regex_opts = 0; > int subjlen; > > const char *regex_cstr = argv[1]; > > opt_enabled('8') { > regex_opts |= PCRE_UTF8; > } > opt_enabled('c') { > regex_opts |= PCRE_CASELESS; > } > opt_enabled('m') { > regex_opts |= PCRE_MULTILINE; > } > opt_enabled('d') { > regex_opts |= PCRE_DOTALL; > } > > regex = pcre_compile(regex_cstr, regex_opts, &errmsg, &errors, NULL); > > if (regex == NULL) > return 1; > > subjlen = (int)fread(buffer, 1, BUFLEN, stdin); > > ofs = 1; > ret = pcre_exec(regex, NULL, buffer, subjlen, > ofs, 0, ovec, ovec_len); > > return ret; >}
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