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/* posix */
#include <sys/types.h>
#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <fcntl.h>
#include <string.h>
#include <errno.h>
/* bsd extensions */
#include <sys/uio.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <sys/un.h>
#include "priv.h"
int
getsockname(int fd, struct sockaddr *addr, int *alen)
{
Rock *r;
int len, olen;
struct sockaddr_un *lunix;
r = _sock_findrock(fd, 0);
if(r == 0){
errno = ENOTSOCK;
return -1;
}
len = 0;
switch(r->domain){
case PF_INET:
case PF_INET6:
_sock_ingetaddr(r, &r->addr, &len, "local");
break;
case PF_UNIX:
lunix = (struct sockaddr_un*)&r->addr;
len = &lunix->sun_path[strlen(lunix->sun_path)] - (char*)lunix;
break;
default:
errno = EAFNOSUPPORT;
return -1;
}
if(alen != 0){
olen = *alen;
*alen = len;
if(olen < len)
len = olen;
}
if(addr != 0 && len > 0)
memmove(addr, &r->addr, len);
return 0;
}
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