/*
* Copyright (c) 2001-2002 Packet Design, LLC.
* All rights reserved.
*
* Subject to the following obligations and disclaimer of warranty,
* use and redistribution of this software, in source or object code
* forms, with or without modifications are expressly permitted by
* Packet Design; provided, however, that:
*
* (i) Any and all reproductions of the source or object code
* must include the copyright notice above and the following
* disclaimer of warranties; and
* (ii) No rights are granted, in any manner or form, to use
* Packet Design trademarks, including the mark "PACKET DESIGN"
* on advertising, endorsements, or otherwise except as such
* appears in the above copyright notice or in the software.
*
* THIS SOFTWARE IS BEING PROVIDED BY PACKET DESIGN "AS IS", AND
* TO THE MAXIMUM EXTENT PERMITTED BY LAW, PACKET DESIGN MAKES NO
* REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, REGARDING
* THIS SOFTWARE, INCLUDING WITHOUT LIMITATION, ANY AND ALL IMPLIED
* WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE,
* OR NON-INFRINGEMENT. PACKET DESIGN DOES NOT WARRANT, GUARANTEE,
* OR MAKE ANY REPRESENTATIONS REGARDING THE USE OF, OR THE RESULTS
* OF THE USE OF THIS SOFTWARE IN TERMS OF ITS CORRECTNESS, ACCURACY,
* RELIABILITY OR OTHERWISE. IN NO EVENT SHALL PACKET DESIGN BE
* LIABLE FOR ANY DAMAGES RESULTING FROM OR ARISING OUT OF ANY USE
* OF THIS SOFTWARE, INCLUDING WITHOUT LIMITATION, ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, PUNITIVE, OR CONSEQUENTIAL
* DAMAGES, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, LOSS OF
* USE, DATA OR PROFITS, HOWEVER CAUSED AND UNDER ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
* THE USE OF THIS SOFTWARE, EVEN IF PACKET DESIGN IS ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*
* Author: Archie Cobbs <archie@freebsd.org>
*/
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <net/ethernet.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <string.h>
#include <errno.h>
#include <ctype.h>
#include "structs/structs.h"
#include "structs/type/array.h"
#include "structs/type/ip4.h"
#include "util/typed_mem.h"
/*********************************************************************
IPv4 ADDRESS TYPE
*********************************************************************/
static structs_ascify_t structs_ip4_ascify;
static structs_binify_t structs_ip4_binify;
static char *
structs_ip4_ascify(const struct structs_type *type,
const char *mtype, const void *data)
{
const u_char *const bytes
= (const u_char *)&((const struct in_addr *)data)->s_addr;
char buf[16];
/* Don't use inet_ntoa(), it's not thread safe */
snprintf(buf, sizeof(buf), "%u.%u.%u.%u",
bytes[0], bytes[1], bytes[2], bytes[3]);
return (STRDUP(mtype, buf));
}
static int
structs_ip4_binify(const struct structs_type *type,
const char *ascii, void *data, char *ebuf, size_t emax)
{
char buf[32];
char *s;
char *t;
int val;
int i;
/* Trim whitespace */
while (isspace(*ascii))
ascii++;
strlcpy(buf, ascii, sizeof(buf));
for (i = strlen(buf); i > 0 && isspace(buf[i - 1]); i--);
buf[i] = '\0';
/* Parse each byte */
for (s = buf, i = 0; i < 4; s = t, i++) {
for (t = s; isdigit(*t); t++);
if (*t != ((i < 3) ? '.' : '\0'))
goto bogus;
if (t - s < 1 || t - s > 3)
goto bogus;
*t++ = '\0';
if ((val = atoi(s)) > 255)
goto bogus;
((u_char *)data)[i] = (u_char)val;
}
/* OK */
return (0);
bogus:
strlcpy(ebuf, "invalid IP address", emax);
errno = EINVAL;
return (-1);
}
const struct structs_type structs_type_ip4 = {
sizeof(struct in_addr),
"ip4",
STRUCTS_TYPE_PRIMITIVE,
structs_region_init,
structs_region_copy,
structs_region_equal,
structs_ip4_ascify,
structs_ip4_binify,
structs_region_encode,
structs_region_decode,
structs_nothing_free,
};
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>