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#include "first.h"
#include "array.h"
#include "configfile.h"
#include <string.h>
#include <stdlib.h>
#ifdef HAVE_PCRE2_H
#define PCRE2_CODE_UNIT_WIDTH 8
#include <pcre2.h>
#elif defined(HAVE_PCRE_H)
#include <pcre.h>
#ifndef PCRE_STUDY_JIT_COMPILE
#define PCRE_STUDY_JIT_COMPILE 0
#define pcre_free_study(x) pcre_free(x)
#endif
#endif
__attribute_cold__
static data_unset *data_config_copy(const data_unset *s) {
data_config *src = (data_config *)s;
data_config *ds = data_config_init();
ds->comp = src->comp;
if (!buffer_is_unset(&src->key)) {
buffer_copy_buffer(&ds->key, &src->key);
ds->comp_key = ds->key.ptr + (src->comp_key - src->key.ptr);
}
buffer_copy_buffer(&ds->comp_tag, &src->comp_tag);
array_copy_array(ds->value, src->value);
return (data_unset *)ds;
}
__attribute_cold__
static void data_config_free(data_unset *d) {
data_config *ds = (data_config *)d;
free(ds->key.ptr);
free(ds->comp_tag.ptr);
array_free(ds->value);
free(ds->children.data);
free(ds->string.ptr);
#ifdef HAVE_PCRE2_H
if (ds->code) pcre2_code_free(ds->code);
#if 0 /*(see config_finalize())*/
if (ds->match_data) pcre2_match_data_free(ds->match_data);
#endif
#elif defined(HAVE_PCRE_H)
if (ds->regex) pcre_free(ds->regex);
if (ds->regex_study) pcre_free_study(ds->regex_study);
#endif
free(d);
}
data_config *data_config_init(void) {
static const struct data_methods config_fn = {
data_config_copy,
data_config_free,
NULL
};
data_config *ds = ck_calloc(1, sizeof(*ds));
ds->comp_key = "";
ds->value = array_init(4);
ds->type = TYPE_CONFIG;
ds->fn = &config_fn;
return ds;
}
#include "log.h"
int data_config_pcre_compile(data_config * const dc, const int pcre_jit, log_error_st * const errh) {
#ifdef HAVE_PCRE2_H
int errcode;
PCRE2_SIZE erroff;
PCRE2_UCHAR errbuf[1024];
dc->code = pcre2_compile((PCRE2_SPTR)BUF_PTR_LEN(&dc->string),
PCRE2_UTF, &errcode, &erroff, NULL);
if (NULL == dc->code) {
pcre2_get_error_message(errcode, errbuf, sizeof(errbuf));
log_error(errh, __FILE__, __LINE__,
"pcre2_compile: %s at offset %zu, regex: %s",
(char *)errbuf, erroff, dc->string.ptr);
return 0;
}
if (pcre_jit) {
errcode = pcre2_jit_compile(dc->code, PCRE2_JIT_COMPLETE);
if (0 != errcode && errcode != PCRE2_ERROR_JIT_BADOPTION) {
pcre2_get_error_message(errcode, errbuf, sizeof(errbuf));
log_error(errh, __FILE__, __LINE__,
"pcre2_jit_compile: %s, regex: %s",
(char *)errbuf, dc->string.ptr);
}
/*return 0;*/
}
uint32_t captures;
errcode = pcre2_pattern_info(dc->code, PCRE2_INFO_CAPTURECOUNT, &captures);
if (0 != errcode) {
pcre2_get_error_message(errcode, errbuf, sizeof(errbuf));
log_error(errh, __FILE__, __LINE__,
"pcre2_pattern_info: %s, regex: %s", (char *)errbuf, dc->string.ptr);
return 0;
}
else if (captures > 9) {
log_error(errh, __FILE__, __LINE__,
"Too many captures in regex, use (?:...) instead of (...): %s",
dc->string.ptr);
return 0;
}
#if 0 /*(see config_finalize())*/
dc->match_data = pcre2_match_data_create_from_pattern(dc->code, NULL);
force_assert(dc->match_data);
#endif
return 1;
#elif defined(HAVE_PCRE_H)
const char *errptr;
int erroff, captures;
dc->regex = pcre_compile(dc->string.ptr, 0, &errptr, &erroff, NULL);
if (NULL == dc->regex) {
log_error(errh, __FILE__, __LINE__,
"parsing regex failed: %s -> %s at offset %d\n",
dc->string.ptr, errptr, erroff);
return 0;
}
const int study_options = pcre_jit ? PCRE_STUDY_JIT_COMPILE : 0;
dc->regex_study = pcre_study(dc->regex, study_options, &errptr);
if (NULL == dc->regex_study && errptr != NULL) {
log_error(errh, __FILE__, __LINE__,
"studying regex failed: %s -> %s\n",
dc->string.ptr, errptr);
return 0;
}
erroff = pcre_fullinfo(dc->regex, dc->regex_study, PCRE_INFO_CAPTURECOUNT,
&captures);
if (0 != erroff) {
log_error(errh, __FILE__, __LINE__,
"getting capture count for regex failed: %s\n",
dc->string.ptr);
return 0;
}
else if (captures > 9) {
log_error(errh, __FILE__, __LINE__,
"Too many captures in regex, use (?:...) instead of (...): %s\n",
dc->string.ptr);
return 0;
}
dc->ovec_nelts = 3 * (captures + 1);
return 1;
#else
UNUSED(pcre_jit);
log_error(errh, __FILE__, __LINE__,
"can't handle '%s' as you compiled without pcre support. \n"
"(perhaps just a missing pcre-devel package ?) \n",
dc->comp_key);
return 0;
#endif
}
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