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Add support for IPv6 in the server and client.

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Add support for IPv6 in the server and client.
You can force the use of IPv4 or IPv6 only with new
-4 and -6 commandline options, if IPv6 support was compiled in.

Signed-off-by: Karsten Keil <kkeil@suse.de>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
This commit is contained in:
Karsten Keil 2008-07-23 18:32:21 +02:00 • committed by H. Peter Anvin
parent 7fe0fb941c
commit 28f22b6591
9 changed files with 574 additions and 185 deletions
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54
common/tftpsubs.h
View file

@ -40,6 +40,58 @@
#include "config.h"
union sock_addr {
struct sockaddr sa;
struct sockaddr_in si;
#ifdef HAVE_IPV6
struct sockaddr_in6 s6;
#endif
};
#define SOCKLEN(sock) \
(((union sock_addr*)sock)->sa.sa_family == AF_INET ? \
(sizeof(struct sockaddr_in)) : \
(sizeof(union sock_addr)))
#ifdef HAVE_IPV6
#define SOCKPORT(sock) \
(((union sock_addr*)sock)->sa.sa_family == AF_INET ? \
((union sock_addr*)sock)->si.sin_port : \
((union sock_addr*)sock)->s6.sin6_port)
#else
#define SOCKPORT(sock) \
(((union sock_addr*)sock)->si.sin_port)
#endif
#ifdef HAVE_IPV6
#define SOCKADDR_P(sock) \
(((union sock_addr*)sock)->sa.sa_family == AF_INET ? \
(void *)&((union sock_addr*)sock)->si.sin_addr : \
(void *)&((union sock_addr*)sock)->s6.sin6_addr)
#else
#define SOCKADDR_P(sock) \
(void *)&((union sock_addr*)sock)->si.sin_addr
#endif
static inline int sa_set_port(union sock_addr *s, u_short port)
{
switch (s->sa.sa_family) {
case AF_INET:
s->si.sin_port = port;
break;
#ifdef HAVE_IPV6
case AF_INET6:
s->s6.sin6_port = port;
break;
#endif
default:
return -1;
}
return 0;
}
int set_sock_addr(char *, union sock_addr *, char **);
struct tftphdr;
struct tftphdr *r_init(void);
@ -55,7 +107,7 @@ int writeit(FILE *, struct tftphdr **, int, int);
extern int segsize;
#define MAX_SEGSIZE 65464
int pick_port_bind(int sockfd, struct sockaddr_in *myaddr,
int pick_port_bind(int sockfd, union sock_addr *myaddr,
unsigned int from, unsigned int to);
#endif