minix/lib/nbsd_libc/sys-minix/getsockname.c
Gianluca Guida 4f294c247f Add NBSDLibc Minix specific files.
This patch mainly copies and modifies files existing in
the current libc implementing minix specific functions.

To keep consisten with the NetBSD libc, we remove 
namespace stubs and we use "namespace.h" and weak
links.
2011-02-17 17:11:09 +00:00

127 lines
2.6 KiB
C

/*
getsockname()
from socket emulation library for Minix 2.0.x
*/
#include <sys/cdefs.h>
#include "namespace.h"
#include <minix/ansi.h>
#include <errno.h>
#include <stdio.h>
#include <string.h>
#include <sys/ioctl.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <net/gen/in.h>
#include <net/gen/tcp.h>
#include <net/gen/tcp_io.h>
#include <net/gen/udp.h>
#include <sys/un.h>
/*
#define DEBUG 0
*/
static int _tcp_getsockname(int fd, struct sockaddr *_RESTRICT address,
socklen_t *_RESTRICT address_len, nwio_tcpconf_t *tcpconfp);
static int _uds_getsockname(int fd, struct sockaddr *_RESTRICT address,
socklen_t *_RESTRICT address_len, struct sockaddr_un *uds_addr);
int getsockname(int fd, struct sockaddr *_RESTRICT address,
socklen_t *_RESTRICT address_len)
{
int r;
nwio_tcpconf_t tcpconf;
struct sockaddr_un uds_addr;
#ifdef DEBUG
fprintf(stderr,"mnx_getsockname: ioctl fd %d.\n", fd);
#endif
r= ioctl(fd, NWIOGTCPCONF, &tcpconf);
if (r != -1 || (errno != ENOTTY && errno != EBADIOCTL))
{
if (r == -1)
{
/* Bad file descriptor */
return -1;
}
return _tcp_getsockname(fd, address, address_len, &tcpconf);
}
r= ioctl(fd, NWIOGUDSADDR, &uds_addr);
if (r != -1 || (errno != ENOTTY && errno != EBADIOCTL))
{
if (r == -1)
{
/* Bad file descriptor */
return -1;
}
return _uds_getsockname(fd, address, address_len, &uds_addr);
}
#if DEBUG
fprintf(stderr, "getsockname: not implemented for fd %d\n", socket);
#endif
errno= ENOSYS;
return -1;
}
static int _tcp_getsockname(int fd, struct sockaddr *_RESTRICT address,
socklen_t *_RESTRICT address_len, nwio_tcpconf_t *tcpconf)
{
socklen_t len;
struct sockaddr_in sin;
#ifdef DEBUG1
fprintf(stderr, "mnx_getsockname: from %s, %u",
inet_ntoa(tcpconf.nwtc_remaddr),
ntohs(tcpconf.nwtc_remport));
fprintf(stderr," for %s, %u\n",
inet_ntoa(tcpconf.nwtc_locaddr),
ntohs(tcpconf.nwtc_locport));
#endif
memset(&sin, '\0', sizeof(sin));
sin.sin_family= AF_INET;
sin.sin_addr.s_addr= tcpconf->nwtc_locaddr ;
sin.sin_port= tcpconf->nwtc_locport;
len= *address_len;
if (len > sizeof(sin))
len= sizeof(sin);
memcpy(address, &sin, len);
*address_len= len;
return 0;
}
static int _uds_getsockname(int fd, struct sockaddr *_RESTRICT address,
socklen_t *_RESTRICT address_len, struct sockaddr_un *uds_addr)
{
socklen_t len;
if (uds_addr->sun_family != AF_UNIX)
{
errno= EINVAL;
return -1;
}
len= *address_len;
if (len > sizeof(struct sockaddr_un))
len = sizeof(struct sockaddr_un);
memcpy(address, uds_addr, len);
*address_len= len;
return 0;
}