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#include <sys/cdefs.h>
#include "namespace.h"
#include <lib.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 <net/gen/udp_io.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 _udp_getsockname(int fd, struct sockaddr *__restrict address,
socklen_t *__restrict address_len, nwio_udpopt_t *udpopt);
static int _uds_getsockname(int fd, struct sockaddr *__restrict address,
socklen_t *__restrict address_len, struct sockaddr_un *uds_addr);
/*
* Get the local address of a socket.
*/
static int
__getsockname(int fd, struct sockaddr * __restrict address,
socklen_t * __restrict address_len)
{
message m;
if (address_len == NULL) {
errno = EFAULT;
return -1;
}
memset(&m, 0, sizeof(m));
m.m_lc_vfs_sockaddr.fd = fd;
m.m_lc_vfs_sockaddr.addr = (vir_bytes)address;
m.m_lc_vfs_sockaddr.addr_len = *address_len;
if (_syscall(VFS_PROC_NR, VFS_GETSOCKNAME, &m) < 0)
return -1;
*address_len = m.m_vfs_lc_socklen.len;
return 0;
}
int getsockname(int fd, struct sockaddr *__restrict address,
socklen_t *__restrict address_len)
{
int r;
nwio_tcpconf_t tcpconf;
nwio_udpopt_t udpopt;
struct sockaddr_un uds_addr;
r = __getsockname(fd, address, address_len);
if (r != -1 || (errno != ENOTSOCK && errno != ENOSYS))
return r;
#if DEBUG
fprintf(stderr,"mnx_getsockname: ioctl fd %d.\n", fd);
#endif
r= ioctl(fd, NWIOGTCPCONF, &tcpconf);
if (r != -1 || errno != ENOTTY)
{
if (r == -1)
{
/* Bad file descriptor */
return -1;
}
return _tcp_getsockname(fd, address, address_len, &tcpconf);
}
r= ioctl(fd, NWIOGUDPOPT, &udpopt);
if (r != -1 || errno != ENOTTY)
{
if (r == -1)
{
/* Bad file descriptor */
return -1;
}
return _udp_getsockname(fd, address, address_len, &udpopt);
}
r= ioctl(fd, NWIOGUDSADDR, &uds_addr);
if (r != -1 || errno != ENOTTY)
{
if (r == -1)
{
/* Bad file descriptor */
return -1;
}
return _uds_getsockname(fd, address, address_len, &uds_addr);
}
errno = ENOTSOCK;
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;
sin.sin_len= sizeof(sin);
len= *address_len;
if (len > sizeof(sin))
len= sizeof(sin);
memcpy(address, &sin, len);
*address_len= len;
return 0;
}
static int _udp_getsockname(int fd, struct sockaddr *__restrict address,
socklen_t *__restrict address_len, nwio_udpopt_t *udpopt)
{
socklen_t len;
struct sockaddr_in sin;
#ifdef DEBUG1
fprintf(stderr, "mnx_getsockname: from %s, %u",
inet_ntoa(udpopt->nwuo_remaddr),
ntohs(udpopt->nwuo_remport));
fprintf(stderr," for %s, %u\n",
inet_ntoa(udpopt->nwuo_locaddr),
ntohs(udpopt->nwuo_locport));
#endif
memset(&sin, '\0', sizeof(sin));
sin.sin_family= AF_INET;
sin.sin_addr.s_addr= udpopt->nwuo_locaddr ;
sin.sin_port= udpopt->nwuo_locport;
sin.sin_len= sizeof(sin);
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;
}
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