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/* $OpenBSD: mailaddr.c,v 1.5 2021/06/14 17:58:15 eric Exp $ */
/*
* Copyright (c) 2015 Gilles Chehade <gilles@poolp.org>
*
* 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 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 <stdlib.h>
#include <string.h>
#include "smtpd.h"
#include "log.h"
static int
mailaddr_line_split(char **line, char **ret)
{
static char buffer[LINE_MAX];
int esc, dq, sq;
size_t i;
char *s;
memset(buffer, 0, sizeof buffer);
esc = dq = sq = 0;
i = 0;
for (s = *line; (*s) && (i < sizeof(buffer)); ++s) {
if (esc) {
buffer[i++] = *s;
esc = 0;
continue;
}
if (*s == '\\') {
esc = 1;
continue;
}
if (*s == ',' && !dq && !sq) {
*ret = buffer;
*line = s+1;
return (1);
}
buffer[i++] = *s;
esc = 0;
if (*s == '"' && !sq)
dq ^= 1;
if (*s == '\'' && !dq)
sq ^= 1;
}
if (esc || dq || sq || i == sizeof(buffer))
return (-1);
*ret = buffer;
*line = s;
return (i ? 1 : 0);
}
int
mailaddr_line(struct maddrmap *maddrmap, const char *s)
{
struct maddrnode mn;
char *p, *subrcpt, *buffer;
int ret;
if ((buffer = strdup(s)) == NULL)
return 0;
p = buffer;
while ((ret = mailaddr_line_split(&p, &subrcpt)) > 0) {
subrcpt = strip(subrcpt);
if (subrcpt[0] == '\0')
continue;
if (!text_to_mailaddr(&mn.mailaddr, subrcpt)) {
free(buffer);
return 0;
}
log_debug("subrcpt: [%s]", subrcpt);
maddrmap_insert(maddrmap, &mn);
}
free(buffer);
if (ret >= 0)
return 1;
/* expand_line_split() returned < 0 */
return 0;
}
void
maddrmap_init(struct maddrmap *maddrmap)
{
TAILQ_INIT(&maddrmap->queue);
}
void
maddrmap_insert(struct maddrmap *maddrmap, struct maddrnode *maddrnode)
{
struct maddrnode *mn;
mn = xmemdup(maddrnode, sizeof *maddrnode);
TAILQ_INSERT_TAIL(&maddrmap->queue, mn, entries);
}
void
maddrmap_free(struct maddrmap *maddrmap)
{
struct maddrnode *mn;
while ((mn = TAILQ_FIRST(&maddrmap->queue))) {
TAILQ_REMOVE(&maddrmap->queue, mn, entries);
free(mn);
}
free(maddrmap);
}
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