radare2/libr/search/regexp.c

/* radare - LGPL - Copyright 2008-2014 - pancake, TheLemonMan */

#include "r_search.h"
#include <r_regex.h>

R_API int r_search_regexp_update(void *_s, ut64 from, const ut8 *buf, int len) {
	RSearch *s = (RSearch*)_s;
	RSearchKeyword *kw;
	RListIter *iter;
	RRegexMatch match;
	RRegex compiled;
	int count = 0;

	r_list_foreach (s->kws, iter, kw) {
		int reflags = R_REGEX_EXTENDED;

		if (kw->icase)
			reflags |= R_REGEX_ICASE;

		if (r_regex_comp (&compiled, (char *)kw->bin_keyword, reflags)) {
			eprintf ("Cannot compile '%s' regexp\n", kw->bin_keyword);
			return -1;
		}

		match.rm_so = 0;
		match.rm_eo = len;

		while (!r_regex_exec (&compiled, (char *)buf, 1, &match, R_REGEX_STARTEND)) {
			r_search_hit_new (s, kw, from+match.rm_so);
			kw->count++;
			/* Setup the boundaries for R_REGEX_STARTEND */
			match.rm_so = match.rm_eo;
			match.rm_eo = len;
			count++;
		} 
	}

	return count;
}