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
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
|
$NetBSD: patch-ag,v 1.3 2001/02/23 22:19:42 tron Exp $
--- src/sysdeps.c.orig Tue Dec 29 11:46:52 1998
+++ src/sysdeps.c Fri Feb 23 23:11:36 2001
@@ -20,8 +20,8 @@
#include <netinet/in.h>
#include <arpa/inet.h>
-#include "server.h"
#include "sysdeps.h"
+#include "server.h"
#undef PURIFY_HACK
/*#define PURIFY_HACK*/
@@ -96,6 +96,9 @@
#ifdef EINPROGRESS
err_no == EINPROGRESS ||
#endif
+#ifdef EALREADY
+ err_no == EALREADY ||
+#endif
err_no == EAGAIN);
}
@@ -256,10 +259,12 @@
/***********************************************************************/
+#if !defined(USE_INET6)
struct SERV_ADDR {
struct in_addr addr;
unsigned short port;
};
+#endif
/*
* host: either "hostname:port" or "ip.ip.ip.ip:port",
@@ -271,6 +276,28 @@
*/
SERV_ADDR *get_host(char *host, unsigned short def_port, int byte_swap)
{
+#if defined(USE_INET6)
+ char *c, *port, buffer[6];
+ struct addrinfo hints, *res;
+
+ port = 0;
+ c = strchr(host, ':');
+ if (c) {
+ *c = '\0';
+ if (c[1] >= '0' && c[1] <= '9')
+ port = c + 1;
+ }
+ if (!port) {
+ sprintf(buffer, "%d", def_port);
+ port = buffer;
+ }
+
+ memset(&hints, '\0', sizeof(hints));
+ hints.ai_family = AF_UNSPEC;
+ hints.ai_socktype = SOCK_STREAM;
+ hints.ai_protocol = 0;
+ return getaddrinfo(host, port, &hints, &res) ? NULL : res;
+#else
SERV_ADDR *ret;
struct in_addr addr;
unsigned short port;
@@ -332,14 +359,15 @@
ret->port = port;
return ret;
+#endif
}
-int open_socket(void)
+int open_socket(int family)
{
int fd, tmp;
do {
- fd = socket(PF_INET, SOCK_STREAM, 0);
+ fd = socket(family, SOCK_STREAM, 0);
} while (fd < 0 && errno == EINTR);
if (fd < 0) {
@@ -372,6 +400,35 @@
int connect_socket(int fd, SERV_ADDR *addr)
{
+#ifdef USE_INET6
+ int family;
+
+ family = AF_INET;
+ while (addr) {
+ if (family != addr->ai_family) {
+ int newsocket;
+
+ newsocket = open_socket(addr->ai_family);
+ if (newsocket < 0)
+ return -1;
+ if (dup2(newsocket, fd) < 0)
+ close(newsocket);
+
+ close(newsocket);
+ family = addr->ai_family;
+ }
+
+ do {
+ if ((connect(fd, addr->ai_addr, addr->ai_addrlen) == 0) ||
+ (errno == EISCONN))
+ return 0;
+ } while (would_block(fd, errno));
+
+ addr = addr->ai_next;
+ }
+
+ return -1;
+#else
struct sockaddr_in serv_addr;
int tmp;
@@ -390,6 +447,7 @@
} while (tmp < 0 && errno == EINTR);
return tmp;
+#endif
}
#if 0 /* Misc stuff for ftp routines */
@@ -548,7 +606,7 @@
char *get_mailhostname(void)
{
struct utsname un = {{0,},};
- char *host = NULL, *domain;
+ char *host = NULL;
#ifdef PURIFY_HACK
return NULL;
|