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/* posix */
#include <sys/types.h>
#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <fcntl.h>
#include <errno.h>
#include <string.h>
/* bsd extensions */
#include <sys/uio.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <sys/un.h>
#include "priv.h"
void*
_sock_inip(struct sockaddr *a)
{
switch(a->sa_family){
case AF_INET:
return &((struct sockaddr_in*)a)->sin_addr;
case AF_INET6:
return &((struct sockaddr_in6*)a)->sin6_addr;
}
return 0;
}
int
_sock_inport(struct sockaddr *a)
{
switch(a->sa_family){
case AF_INET:
return ntohs(((struct sockaddr_in*)a)->sin_port);
case AF_INET6:
return ntohs(((struct sockaddr_in6*)a)->sin6_port);
}
return 0;
}
int
_sock_inisany(int af, void *addr)
{
int alen;
void *any;
/* an IPv4 address that is auto-initialized to all zeros */
static struct in_addr inaddr_any;
switch(af){
case AF_INET:
alen = sizeof inaddr_any.s_addr;
any = &inaddr_any;
break;
case AF_INET6:
alen = sizeof in6addr_any;
any = &in6addr_any;
break;
default:
return 0;
}
return 0 == memcmp(addr, any, alen);
}
int
_sock_inaddr(int af, char *ip, char *port, void *a, int *alen)
{
int len;
len = 0;
if(af == AF_INET){
struct sockaddr_in *in = a;
len = sizeof(*in);
memset(in, 0, len);
in->sin_family = af;
if(port != 0 && *port != 0)
in->sin_port = htons(atoi(port));
if(ip != 0 && *ip != 0)
inet_pton(af, ip, &in->sin_addr);
} else if(af == AF_INET6){
struct sockaddr_in6 *in = a;
len = sizeof(*in);
memset(in, 0, len);
in->sin6_family = af;
if(port != 0 && *port != 0)
in->sin6_port = htons(atoi(port));
if(ip != 0 && *ip != 0)
inet_pton(af, ip, &in->sin6_addr);
}
if(alen != 0)
*alen = len;
return len;
}
void
_sock_ingetaddr(Rock *r, void *a, int *alen, char *file)
{
char name[Ctlsize], *p;
int n, fd;
if(r->domain != PF_INET && r->domain != PF_INET6)
return;
/* get remote address */
strcpy(name, r->ctl);
p = strrchr(name, '/');
strcpy(p+1, file);
fd = open(name, O_RDONLY);
if(fd >= 0){
n = read(fd, name, sizeof(name)-1);
if(n > 0){
name[n] = 0;
p = strchr(name, '!');
if(p){
*p++ = 0;
_sock_inaddr(r->domain, name, p, a, alen);
}
}
close(fd);
}
}
char *
_sock_inaddr2string(Rock *r, char *dest, int dlen)
{
int af = r->domain;
void *addr = _sock_inip(&r->addr);
int port = _sock_inport(&r->addr);
char *d = dest;
char *dend = dest+dlen;
if(!_sock_inisany(af, addr)){
inet_ntop(af, addr, d, dlen-1);
d = memchr(d, 0, dlen-1);
*(d++) = '!';
}
snprintf(d, dend-d, "%d", port);
return dest;
}
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