1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
|
/*
* $Id: safe_inet_addr.c,v 1.14 2005/04/18 21:52:40 hno Exp $
*/
#include "config.h"
#include "util.h"
#if HAVE_STDIO_H
#include <stdio.h>
#endif
#if HAVE_STDLIB_H
#include <stdlib.h>
#endif
#if HAVE_UNISTD_H
#include <unistd.h>
#endif
#if HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#if HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif
#if HAVE_NETINET_IN_H
#include <netinet/in.h>
#endif
#if HAVE_ARPA_INET_H
#include <arpa/inet.h>
#endif
#include "snprintf.h"
int
safe_inet_addr(const char *buf, struct IN_ADDR *addr)
{
static char addrbuf[32];
int a1 = 0, a2 = 0, a3 = 0, a4 = 0;
struct IN_ADDR A;
char x;
#if defined(_SQUID_HPUX_)
/*
* MIYOSHI Tsutomu <mijosxi@ike.tottori-u.ac.jp> says scanning 'buf'
* causes a bus error on hppa1.1-hp-hpux9.07, so we
* have a broad hack for all HP systems.
*/
static char buftmp[32];
snprintf(buftmp, 32, "%s", buf);
if (sscanf(buftmp, "%d.%d.%d.%d%c", &a1, &a2, &a3, &a4, &x) != 4)
#else
if (sscanf(buf, "%d.%d.%d.%d%c", &a1, &a2, &a3, &a4, &x) != 4)
#endif
return 0;
if (a1 < 0 || a1 > 255)
return 0;
if (a2 < 0 || a2 > 255)
return 0;
if (a3 < 0 || a3 > 255)
return 0;
if (a4 < 0 || a4 > 255)
return 0;
snprintf(addrbuf, 32, "%d.%d.%d.%d", a1, a2, a3, a4);
A.s_addr = inet_addr(addrbuf);
if (addr)
addr->s_addr = A.s_addr;
return 1;
}
|
