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/* $OpenBSD: forward.c,v 1.24 2011/05/16 21:05:51 gilles Exp $ */
/*
* Copyright (c) 2008 Gilles Chehade <gilles@openbsd.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 <sys/types.h>
#include <sys/queue.h>
#include <sys/tree.h>
#include <sys/param.h>
#include <sys/socket.h>
#include <sys/stat.h>
#include <ctype.h>
#include <event.h>
#include <imsg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "smtpd.h"
#include "log.h"
int
forwards_get(int fd, struct expandtree *expandtree, char *as_user)
{
FILE *fp;
char *buf, *lbuf, *p, *cp;
size_t len;
size_t nbaliases = 0;
int quoted;
struct expandnode expnode;
fp = fdopen(fd, "r");
if (fp == NULL)
return 0;
lbuf = NULL;
while ((buf = fgetln(fp, &len))) {
if (buf[len - 1] == '\n')
buf[len - 1] = '\0';
else {
/* EOF without EOL, copy and add the NUL */
if ((lbuf = malloc(len + 1)) == NULL)
fatal("malloc");
memcpy(lbuf, buf, len);
lbuf[len] = '\0';
buf = lbuf;
}
/* ignore empty lines and comments */
if (buf[0] == '#' || buf[0] == '\0')
continue;
quoted = 0;
cp = buf;
do {
/* skip whitespace */
while (isspace((int)*cp))
cp++;
/* parse line */
for (p = cp; *p != '\0'; p++) {
if (*p == ',' && !quoted) {
*p++ = '\0';
break;
} else if (*p == '"')
quoted = !quoted;
}
buf = cp;
cp = p;
bzero(&expnode, sizeof (struct expandnode));
if (! alias_parse(&expnode, buf)) {
log_debug("bad entry in ~/.forward");
continue;
}
if (expnode.type == EXPAND_INCLUDE) {
log_debug(
"includes are forbidden in ~/.forward");
continue;
}
(void)strlcpy(expnode.as_user, as_user, sizeof(expnode.as_user));
expandtree_increment_node(expandtree, &expnode);
nbaliases++;
} while (*cp != '\0');
}
free(lbuf);
fclose(fp);
return (nbaliases);
}
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