From 830407e88f9d40d954356c3754f2647f91d5c06a Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 17:26:00 +0200 Subject: Adding upstream version 5.6.0. Signed-off-by: Daniel Baumann --- modules/policy/lua-aho-corasick/ac.h | 49 ++++++++++++++++++++++++++++++++++++ 1 file changed, 49 insertions(+) create mode 100644 modules/policy/lua-aho-corasick/ac.h (limited to 'modules/policy/lua-aho-corasick/ac.h') diff --git a/modules/policy/lua-aho-corasick/ac.h b/modules/policy/lua-aho-corasick/ac.h new file mode 100644 index 0000000..30bf447 --- /dev/null +++ b/modules/policy/lua-aho-corasick/ac.h @@ -0,0 +1,49 @@ +#ifndef AC_H +#define AC_H +#ifdef __cplusplus +extern "C" { +#endif + +#define AC_EXPORT __attribute__ ((visibility ("default"))) + +/* If the subject-string dosen't match any of the given patterns, "match_begin" + * should be a negative; otherwise the substring of the subject-string, + * starting from offset "match_begin" to "match_end" incusively, + * should exactly match the pattern specified by the 'pattern_idx' (i.e. + * the pattern is "pattern_v[pattern_idx]" where the "pattern_v" is the + * first acutal argument passing to ac_create()) + */ +typedef struct { + int match_begin; + int match_end; + int pattern_idx; +} ac_result_t; + +struct ac_t; + +/* Create an AC instance. "pattern_v" is a vector of patterns, the length of + * i-th pattern is specified by "pattern_len_v[i]"; the number of patterns + * is specified by "vect_len". + * + * Return the instance on success, or NUL otherwise. + */ +ac_t* ac_create(const char** pattern_v, unsigned int* pattern_len_v, + unsigned int vect_len) AC_EXPORT; + +ac_result_t ac_match(ac_t*, const char *str, unsigned int len) AC_EXPORT; + +ac_result_t ac_match_longest_l(ac_t*, const char *str, unsigned int len) AC_EXPORT; + +/* Similar to ac_match() except that it only returns match-begin. The rationale + * for this interface is that luajit has hard time in dealing with strcture- + * return-value. + */ +int ac_match2(ac_t*, const char *str, unsigned int len) AC_EXPORT; + +void ac_free(void*) AC_EXPORT; + +#ifdef __cplusplus +} +#endif + +#endif /* AC_H */ -- cgit v1.2.3