/* $Id$ */
/*
* Copyright (c) 2006 Nicholas Marriott <nicholas.marriott@gmail.com>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/types.h>
#include <regex.h>
#include "fdm.h"
#include "match.h"
int match_regexp_match(struct mail_ctx *, struct expritem *);
void match_regexp_desc(struct expritem *, char *, size_t);
struct match match_regexp = {
"regexp",
match_regexp_match,
match_regexp_desc
};
int
match_regexp_match(struct mail_ctx *mctx, struct expritem *ei)
{
struct match_regexp_data *data = ei->data;
struct account *a = mctx->account;
struct mail *m = mctx->mail;
int res;
char *cause;
size_t so, eo;
so = 0;
eo = m->size;
switch (data->area) {
case AREA_HEADERS:
if (m->body == 0)
return (MATCH_FALSE);
eo = m->body;
break;
case AREA_BODY:
so = m->body;
break;
case AREA_ANY:
break;
}
log_debug3("%s: matching from %zu to %zu (size=%zu, body=%zu)", a->name,
so, eo, m->size, m->body);
res = re_block(&data->re, m->data + so, eo - so, &m->rml, &cause);
if (res == -1) {
log_warnx("%s: %s", a->name, cause);
xfree(cause);
return (MATCH_ERROR);
}
if (res == 0)
return (MATCH_FALSE);
return (MATCH_TRUE);
}
void
match_regexp_desc(struct expritem *ei, char *buf, size_t len)
{
struct match_regexp_data *data = ei->data;
const char *area = NULL;
switch (data->area) {
case AREA_BODY:
area = "body";
break;
case AREA_HEADERS:
area = "headers";
break;
case AREA_ANY:
area = "any";
break;
}
xsnprintf(buf, len, "regexp \"%s\" in %s", data->re.str, area);
}