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
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
|
/***********************************************************************/
/* */
/* Objective Caml */
/* */
/* Xavier Leroy, projet Cristal, INRIA Rocquencourt */
/* */
/* Copyright 1996 Institut National de Recherche en Informatique et */
/* Automatique. Distributed only by permission. */
/* */
/***********************************************************************/
/* $Id$ */
#include <string.h>
#include <mlvalues.h>
#include <alloc.h>
#include <memory.h>
#include <fail.h>
#include <signals.h>
#include "unixsupport.h"
#ifdef HAS_SOCKETS
#include "socketaddr.h"
#ifndef _WIN32
#include <netdb.h>
#endif
static int entry_h_length;
extern int socket_domain_table[];
static value alloc_one_addr(char *a)
{
bcopy(a, &sock_addr.s_inet.sin_addr, entry_h_length);
return alloc_inet_addr(sock_addr.s_inet.sin_addr.s_addr);
}
static value alloc_host_entry(struct hostent *entry)
{
value res;
value name = Val_unit, aliases = Val_unit;
value addr_list = Val_unit, adr = Val_unit;
Begin_roots4 (name, aliases, addr_list, adr);
name = copy_string((char *)(entry->h_name));
aliases = copy_string_array(entry->h_aliases);
entry_h_length = entry->h_length;
#ifdef h_addr
addr_list = alloc_array(alloc_one_addr, entry->h_addr_list);
#else
adr = alloc_one_addr(entry->h_addr);
addr_list = alloc_tuple(1);
Field(addr_list, 0) = adr;
#endif
res = alloc_tuple(4);
Field(res, 0) = name;
Field(res, 1) = aliases;
Field(res, 2) = entry->h_addrtype == PF_UNIX ? Val_int(0) : Val_int(1);
Field(res, 3) = addr_list;
End_roots();
return res;
}
value unix_gethostbyaddr(value a) /* ML */
{
uint32 adr;
struct hostent * entry;
adr = GET_INET_ADDR(a);
enter_blocking_section();
entry = gethostbyaddr((char *) &adr, 4, AF_INET);
leave_blocking_section();
if (entry == (struct hostent *) NULL) raise_not_found();
return alloc_host_entry(entry);
}
value unix_gethostbyname(value name) /* ML */
{
char hostname[256];
struct hostent * entry;
strncpy(hostname, String_val(name), sizeof(hostname) - 1);
hostname[sizeof(hostname) - 1] = 0;
enter_blocking_section();
entry = gethostbyname(hostname);
leave_blocking_section();
if (entry == (struct hostent *) NULL) raise_not_found();
return alloc_host_entry(entry);
}
#else
value unix_gethostbyaddr(value name)
{ invalid_argument("gethostbyaddr not implemented"); }
value unix_gethostbyname(value name)
{ invalid_argument("gethostbyname not implemented"); }
#endif
|
