SOCKADDR

class for transparent treatment of port / ip address pairs. enacapsulates either sockaddr_in or sockaddr_in6 More...

Classes
union	SOCKADDR
Functions
int	SOCKADDR_init (SOCKADDR *saddr, IPADDRESS *addr, uint16_t port)
	initialise ip address / port pair.
int	SOCKADDR_family (SOCKADDR *addr)
	return addressing family of object (AF_INET or AF_INET6)
void *	SOCKADDR_ipaddr (SOCKADDR *addr)
	return address of ip address portion of address / port pair.
M_INLINE struct sockaddr *	SOCKADDR_saddr (SOCKADDR *addr)
socklen_t	SOCKADDR_length (SOCKADDR *addr)
	return address of address / port pair (depends on addressing family)
char *	SOCKADDR_to_string (SOCKADDR *saddr)
	formats objec as string

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Detailed Description

class for transparent treatment of port / ip address pairs. enacapsulates either sockaddr_in or sockaddr_in6

---

Function Documentation

int SOCKADDR_family

(

SOCKADDR *

addr

)

return addressing family of object (AF_INET or AF_INET6)

Definition at line 99 of file addrutil.c.

{
  return addr->addr_ipv4.sin_family;
}

int SOCKADDR_init	(	SOCKADDR *	saddr,
		IPADDRESS *	addr,
		uint16_t	port
	)

initialise ip address / port pair.

Definition at line 73 of file addrutil.c.

{
  memset( saddr, 0, sizeof( SOCKADDR ) );
  saddr->addr_ipv4.sin_port =  htons( port ); 
  saddr->addr_ipv4.sin_family = addr->family; 

  if (addr->family == AF_INET) {
    saddr->addr_ipv4.sin_addr = addr->addr.ipv4;
  } else if (addr->family == AF_INET6) {
    saddr->addr_ipv6.sin6_addr = addr->addr.ipv6;
  } else {
    return -1;
  }
  return 0;
}

void* SOCKADDR_ipaddr

(

SOCKADDR *

addr

)

return address of ip address portion of address / port pair.

Definition at line 104 of file addrutil.c.

{
  if (addr->addr_ipv4.sin_family  == AF_INET) {
    return &addr->addr_ipv4.sin_addr;
  } else if (addr->addr_ipv4.sin_family == AF_INET6) {
    return &addr->addr_ipv6.sin6_addr;
  }
  return 0;
}

socklen_t SOCKADDR_length

(

SOCKADDR *

addr

)

return address of address / port pair (depends on addressing family)

Definition at line 89 of file addrutil.c.

{
  if (addr->addr_ipv4.sin_family  == AF_INET) {
    return sizeof(struct sockaddr_in);
  } else if (addr->addr_ipv4.sin_family == AF_INET6) {
    return sizeof(struct sockaddr_in6);
  }
  return -1;
}

M_INLINE struct sockaddr* SOCKADDR_saddr

(

SOCKADDR *

addr

)

[read]

Definition at line 70 of file addrutil.h.

{
  return (struct sockaddr *) addr;
}

char* SOCKADDR_to_string

(

SOCKADDR *

saddr

)

formats objec as string

Definition at line 114 of file addrutil.c.

{
  char sbuf[100];
  int nlen, remain;

  if (SOCKADDR_family(saddr) == AF_INET6) {
    sbuf[0] = '[';

    if (! inet_ntop( SOCKADDR_family( saddr ), (const void *) SOCKADDR_ipaddr( saddr ), sbuf + 1, sizeof(sbuf) - 1 ) ) {
      return 0; 
    }

    nlen = strlen(sbuf);
    remain = sizeof(sbuf) - nlen; 

    if (remain <= 0) {
      return 0;
    }

    snprintf(sbuf+strlen(sbuf),remain-1,"]:%hu", ntohs( saddr->addr_ipv4.sin_port ) ); 
  } else {
    if (! inet_ntop( SOCKADDR_family( saddr ), (const void *) SOCKADDR_ipaddr( saddr ), sbuf , sizeof(sbuf) ) ) {
      return 0; 
    }

    nlen = strlen(sbuf);
    remain = sizeof(sbuf) - nlen; 

    if (remain <= 0) {
      return 0;
    }

    snprintf(sbuf+strlen(sbuf),remain-1,":%hu", ntohs( saddr->addr_ipv4.sin_port ) ); 
  }
  return strdup(sbuf);
}