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/* $OpenBSD: table_getpwnam.c,v 1.4 2015/01/20 17:37:54 deraadt Exp $ */
/*
* Copyright (c) 2012 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 <sys/types.h>
#include <sys/queue.h>
#include <sys/tree.h>
#include <sys/socket.h>
#include <ctype.h>
#include <err.h>
#include <errno.h>
#include <event.h>
#include <fcntl.h>
#include <imsg.h>
#include <pwd.h>
#include <stdio.h>
#include <stdlib.h>
#include <limits.h>
#include <string.h>
#include "smtpd.h"
#include "log.h"
/* getpwnam(3) backend */
static int table_getpwnam_config(struct table *);
static int table_getpwnam_update(struct table *);
static void *table_getpwnam_open(struct table *);
static int table_getpwnam_lookup(void *, struct dict *, const char *, enum table_service,
union lookup *);
static void table_getpwnam_close(void *);
struct table_backend table_backend_getpwnam = {
K_USERINFO,
table_getpwnam_config,
table_getpwnam_open,
table_getpwnam_update,
table_getpwnam_close,
table_getpwnam_lookup,
};
static int
table_getpwnam_config(struct table *table)
{
if (table->t_config[0])
return 0;
return 1;
}
static int
table_getpwnam_update(struct table *table)
{
return 1;
}
static void *
table_getpwnam_open(struct table *table)
{
return table;
}
static void
table_getpwnam_close(void *hdl)
{
return;
}
static int
table_getpwnam_lookup(void *hdl, struct dict *params, const char *key, enum table_service kind,
union lookup *lk)
{
struct passwd *pw;
size_t s;
if (kind != K_USERINFO)
return -1;
errno = 0;
do {
pw = getpwnam(key);
} while (pw == NULL && errno == EINTR);
if (pw == NULL) {
if (errno)
return -1;
return 0;
}
if (lk == NULL)
return 1;
lk->userinfo.uid = pw->pw_uid;
lk->userinfo.gid = pw->pw_gid;
s = strlcpy(lk->userinfo.username, pw->pw_name,
sizeof(lk->userinfo.username));
if (s >= sizeof(lk->userinfo.username))
return (-1);
s = strlcpy(lk->userinfo.directory, pw->pw_dir,
sizeof(lk->userinfo.directory));
if (s >= sizeof(lk->userinfo.directory))
return (-1);
return (1);
}
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