C++ IN_CLASSC函数代码示例

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本文整理汇总了C++中IN_CLASSC函数的典型用法代码示例。如果您正苦于以下问题：C++ IN_CLASSC函数的具体用法？C++ IN_CLASSC怎么用？C++ IN_CLASSC使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。

在下文中一共展示了IN_CLASSC函数的20个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的C++代码示例。

示例1: in_netof

unsigned long in_netof(struct in_addr in)
{
  unsigned long i, net;
  struct in_ifaddr *ia;

  /* Setup locals */
  i = ntohl(in.s_addr);

  /* Get network number */
  if ( IN_CLASSA(i) )
    net = i & IN_CLASSA_NET;

  else if ( IN_CLASSB(i) )
    net = i & IN_CLASSB_NET;

  else if ( IN_CLASSC(i) )
    net = i & IN_CLASSC_NET;

  else if ( IN_CLASSD(i) )
    net = i & IN_CLASSD_NET;

  else
    return 0;

  /* Check if subnet */
  for (ia = in_ifaddr; ia != NULL; ia = ia->ia_next)
    if (net == ia->ia_net)
      return (i & ia->ia_subnetmask);

  return net;
}

开发者ID:phoboz，项目名称:vmx，代码行数:31，代码来源:inLib.c

示例2: route_netmask

/* This calculates the netmask that we should use for static routes.
 * This IS different from the calculation used to calculate the netmask
 * for an interface address. */
static uint32_t
route_netmask(uint32_t ip_in)
{
	/* used to be unsigned long - check if error */
	uint32_t p = ntohl(ip_in);
	uint32_t t;

	if (IN_CLASSA(p))
		t = ~IN_CLASSA_NET;
	else {
		if (IN_CLASSB(p))
			t = ~IN_CLASSB_NET;
		else {
			if (IN_CLASSC(p))
				t = ~IN_CLASSC_NET;
			else
				t = 0;
		}
	}

	while (t & p)
		t >>= 1;

	return (htonl(~t));
}

开发者ID:Andproject，项目名称:platform_external_dhcpcd，代码行数:28，代码来源:dhcp.c

示例3: apply_classful_mask_ipv4

/* Utility function to convert ipv4 prefixes to Classful prefixes */
void apply_classful_mask_ipv4 (struct prefix_ipv4 *p)
{

  u_int32_t destination;
  
  destination = ntohl (p->prefix.s_addr);
  
  if (p->prefixlen == IPV4_MAX_PREFIXLEN);
  /* do nothing for host routes */
  else if (IN_CLASSC (destination)) 
    {
      p->prefixlen=24;
      apply_mask_ipv4(p);
    }
  else if (IN_CLASSB(destination)) 
    {
      p->prefixlen=16;
      apply_mask_ipv4(p);
    }
  else 
    {
      p->prefixlen=8;
      apply_mask_ipv4(p);
    }
}

开发者ID:edderick，项目名称:quagga_zOSPF，代码行数:26，代码来源:prefix.c

示例4: get_netmask4

/*
 * Given a host-order address, calculate client's default net mask.
 * Consult netmasks database to see if net is further subnetted.
 * We'll only snag the first netmask that matches our criteria.
 * We return the resultant netmask in host order.
 */
void
get_netmask4(const struct in_addr *n_addrp, struct in_addr *s_addrp)
{
	struct in_addr	hp, tp;

	/*
	 * First check if VLSM is in use.
	 */
	hp.s_addr = htonl(n_addrp->s_addr);
	if (getnetmaskbyaddr(hp, &tp) == 0) {
		s_addrp->s_addr = ntohl(tp.s_addr);
		return;
	}

	/*
	 * Fall back on standard classed networks.
	 */
	if (IN_CLASSA(n_addrp->s_addr))
		s_addrp->s_addr = IN_CLASSA_NET;
	else if (IN_CLASSB(n_addrp->s_addr))
		s_addrp->s_addr = IN_CLASSB_NET;
	else if (IN_CLASSC(n_addrp->s_addr))
		s_addrp->s_addr = IN_CLASSC_NET;
	else
		s_addrp->s_addr = IN_CLASSE_NET;
}

开发者ID:apprisi，项目名称:illumos-gate，代码行数:32，代码来源:inetutil.c

示例5: GetClass

/// This function uses Windows Sockets macros to get standard class information. It
/// does not know about subnetting or any classes beyond class C.
TINetSocketAddress::TINetClass TINetSocketAddress::GetClass() const
{
  if (IN_CLASSA(GetNetworkAddress()))
    return ClassA;
  if (IN_CLASSB(GetNetworkAddress()))
    return ClassB;
  if (IN_CLASSC(GetNetworkAddress()))
    return ClassC;
  return ClassUnknown;
}

开发者ID:GarMeridian3，项目名称:Meridian59，代码行数:12，代码来源:wskaddr.cpp

示例6: config_ip_prefix

static int config_ip_prefix(struct in_addr *addr)
{
	if (IN_CLASSA(addr->s_addr))
		return 32 - IN_CLASSA_NSHIFT;
	if (IN_CLASSB(addr->s_addr))
		return 32 - IN_CLASSB_NSHIFT;
	if (IN_CLASSC(addr->s_addr))
		return 32 - IN_CLASSC_NSHIFT;

	return 0;
}

开发者ID:coconutpilot，项目名称:lxc-gentoo-new，代码行数:11，代码来源:confile.c

示例7: inet_class_netmask

static uint32_t inet_class_netmask(uint32_t ip)
{
	ip = ntohl(ip);
	if (IN_CLASSA(ip))
		return htonl(IN_CLASSA_NET);
	if (IN_CLASSB(ip))
		return htonl(IN_CLASSB_NET);
	if (IN_CLASSC(ip))
		return htonl(IN_CLASSC_NET);
	return INADDR_ANY;
}

开发者ID:Agochka，项目名称:klibc，代码行数:11，代码来源:main.c

示例8: printk

//---------------------------------------------------------------------------
// Search the entity with the IPv4 address 'addr'
struct cx_entity *nasmt_CLASS_cx4(struct sk_buff *skb, unsigned char dscp, int *paddr_type, unsigned char *cx_index) {
  //---------------------------------------------------------------------------
  unsigned char cxi;
  uint32_t daddr;
  struct cx_entity *cx=NULL;
  struct classifier_entity *pclassifier=NULL;
  struct in_addr masked_addr;

  #ifdef NAS_DEBUG_CLASS
  printk("nasmt_CLASS_cx4: begin\n");
  #endif
  if (skb!=NULL) {
    daddr = ((struct iphdr*)(skb_network_header(skb)))->daddr;
    if (daddr != INADDR_ANY) {
      #ifdef NAS_DEBUG_CLASS
      printk("nasmt_CLASS_cx4: SOURCE ADDR %d.%d.%d.%d",NIPADDR(ip_hdr(skb)->saddr));
      printk(" DEST ADDR %d.%d.%d.%d\n",NIPADDR(ip_hdr(skb)->daddr));
      #endif
      if (ipv4_is_multicast(ip_hdr(skb)->daddr)) {
        // TO BE CHECKED
        *paddr_type = NAS_IPV4_ADDR_MC_SIGNALLING;
      } else {
        if (ipv4_is_lbcast(ip_hdr(skb)->daddr)) {
        // TO BE CHECKED
        *paddr_type = NAS_IPV4_ADDR_BROADCAST;
        } else {
          if (IN_CLASSA(ip_hdr(skb)->daddr) || IN_CLASSB(ip_hdr(skb)->daddr) || IN_CLASSC(ip_hdr(skb)->daddr)) {
            *paddr_type = NAS_IPV4_ADDR_UNICAST;
            cxi = 0;
            (*cx_index)++;
            pclassifier = gpriv->cx[cxi].sclassifier[dscp];
            while (pclassifier!=NULL) {
              // verify that this is an IPv4 classifier
              if ((pclassifier->version == NAS_VERSION_4)  || (pclassifier->version == NAS_VERSION_DEFAULT)) {
                  nasmt_create_mask_ipv4_addr(&masked_addr, pclassifier->dplen);
                  if (IN_ARE_ADDR_MASKED_EQUAL(&ip_hdr(skb)->daddr, &(pclassifier->daddr.ipv4), &masked_addr)) {
                    #ifdef NAS_DEBUG_CLASS
                    printk("nasmt_CLASS_cx4: IP MASK MATCHED: found cx %d: %d.%d.%d.%d/%d\n",cxi, NIPADDR(pclassifier->daddr.ipv4), pclassifier->dplen);
                    #endif
                  return &gpriv->cx[cxi];
                  }
              }
              // goto to next classification rule for the connection
              pclassifier = pclassifier->next;
            }
          } else {
            *paddr_type = NAS_IPV4_ADDR_UNKNOWN;
          }
        }
      }
    }
  }
  return cx;
}

开发者ID:mspublic，项目名称:openair4G-mirror，代码行数:56，代码来源:nasmt_classifier.c

示例9: ipaddrtonetmask

/*
 * Get the netmask of an IP address.  This routine is used if
 * SIOCGIFNETMASK doesn't work.
 */
u_int32_t
ipaddrtonetmask(u_int32_t addr)
{
	if (IN_CLASSA(addr))
		return IN_CLASSA_NET;
	if (IN_CLASSB(addr))
		return IN_CLASSB_NET;
	if (IN_CLASSC(addr))
		return IN_CLASSC_NET;
	error(FATAL, "unknown IP address class: %08X", addr);
	/* NOTREACHED */
}

开发者ID:mosconi，项目名称:openbsd，代码行数:16，代码来源:rarpd.c

示例10: nl_set_ifaddr

int nl_set_ifaddr(struct in_addr ifaddr, struct in_addr bcaddr, int ifindex)
{
	struct {
		struct ifaddrmsg ifa;
		struct {
			struct rtattr rta;
			struct in_addr addr;
		} data[3];
	} m;

	memset(&m, 0, sizeof(m));

	m.ifa.ifa_family = AF_INET;
	
	if (IN_CLASSA(ifaddr.s_addr))
		m.ifa.ifa_prefixlen = IN_CLASSA_NSHIFT;
	else if (IN_CLASSB(ifaddr.s_addr))
		m.ifa.ifa_prefixlen = IN_CLASSB_NSHIFT;
	else if (IN_CLASSC(ifaddr.s_addr))
		m.ifa.ifa_prefixlen = IN_CLASSC_NSHIFT;
	else if (IN_CLASSD(ifaddr.s_addr))
		m.ifa.ifa_prefixlen = 0;

	m.ifa.ifa_prefixlen = 24;
	m.ifa.ifa_flags = 0; //IFA_F_PERMANENT;
	m.ifa.ifa_scope = RT_SCOPE_UNIVERSE;
	m.ifa.ifa_index = ifindex;
	
	m.data[0].rta.rta_len = RTA_LENGTH(sizeof(ifaddr));
	m.data[0].rta.rta_type = IFA_LOCAL;
	m.data[0].addr.s_addr = ifaddr.s_addr;
	
	m.data[1].rta.rta_len = RTA_LENGTH(sizeof(ifaddr));
	m.data[1].rta.rta_type = IFA_ADDRESS;
	m.data[1].addr.s_addr = ifaddr.s_addr;

	m.data[2].rta.rta_len = RTA_LENGTH(sizeof(ifaddr));
	m.data[2].rta.rta_type = IFA_BROADCAST;
	m.data[2].addr.s_addr = bcaddr.s_addr;

	
	DEBUG(LOG_DEBUG, 0, "Sending new ifaddr %s %s netlink message index=%d", 
	      ip_to_str(ifaddr),
	      ip_to_str(bcaddr),
	      ifindex);

	return nl_create_and_send_msg(rtnlsock, RTM_NEWADDR, &m, sizeof(m));
}

开发者ID:joninvski，项目名称:aodvuu-ts7500，代码行数:48，代码来源:nl.c

示例11: get_netmask

unsigned long get_netmask (unsigned long addr)
{
	unsigned long dst;

	if (addr == 0)
		return (0);

	dst = htonl (addr);
	if (IN_CLASSA (dst))
		return (ntohl (IN_CLASSA_NET));
	if (IN_CLASSB (dst))
		return (ntohl (IN_CLASSB_NET));
	if (IN_CLASSC (dst))
		return (ntohl (IN_CLASSC_NET));

	return (0);
}

开发者ID:BackupTheBerlios，项目名称:dhcpcd-svn，代码行数:17，代码来源:interface.c

示例12: start_networking

void start_networking(void)
{
  struct ip_addr ipaddr = { htonl(IF_IPADDR) };
  struct ip_addr netmask = { htonl(IF_NETMASK) };
  struct ip_addr gw = { 0 };
  char *ip = NULL;

#ifdef CONFIG_PRINT
  tprintk("Waiting for network.\n");
#endif

  dev = init_netfront(NULL, NULL, rawmac, &ip);

  if (ip) {
    ipaddr.addr = inet_addr(ip);
    if (IN_CLASSA(ntohl(ipaddr.addr)))
      netmask.addr = htonl(IN_CLASSA_NET);
    else if (IN_CLASSB(ntohl(ipaddr.addr)))
      netmask.addr = htonl(IN_CLASSB_NET);
    else if (IN_CLASSC(ntohl(ipaddr.addr)))
      netmask.addr = htonl(IN_CLASSC_NET);
    else
      tprintk("Strange IP %s, leaving netmask to 0.\n", ip);
  }
  tprintk("IP %x netmask %x gateway %x.\n",
          ntohl(ipaddr.addr), ntohl(netmask.addr), ntohl(gw.addr));

#ifdef CONFIG_PRINT
  tprintk("TCP/IP bringup begins.\n");
#endif

  netif = xmalloc(struct netif);
  tcpip_init(tcpip_bringup_finished, netif);

  netif_add(netif, &ipaddr, &netmask, &gw, rawmac,
            netif_netfront_init, ip_input);
  netif_set_default(netif);
  netif_set_up(netif);

  down(&tcpip_is_up);

#ifdef CONFIG_FRONT
    tprintk("Network is ready.\n");
#endif
}

开发者ID:farewellkou，项目名称:xen，代码行数:45，代码来源:lwip-net.c

示例13: get_netmask

uint32_t
get_netmask(uint32_t addr)
{
	uint32_t dst;

	if (addr == 0)
		return 0;

	dst = htonl(addr);
	if (IN_CLASSA(dst))
		return ntohl(IN_CLASSA_NET);
	if (IN_CLASSB(dst))
		return ntohl(IN_CLASSB_NET);
	if (IN_CLASSC(dst))
		return ntohl(IN_CLASSC_NET);

	return 0;
}

开发者ID:Andproject，项目名称:platform_external_dhcpcd，代码行数:18，代码来源:net.c

示例14: networkFromInaddr

static struct in_addr
networkFromInaddr(struct in_addr a)
{
    struct in_addr b;
    b.s_addr = ntohl(a.s_addr);
#if USE_CLASSFUL
    if (IN_CLASSC(b.s_addr))
        b.s_addr &= IN_CLASSC_NET;
    else if (IN_CLASSB(b.s_addr))
        b.s_addr &= IN_CLASSB_NET;
    else if (IN_CLASSA(b.s_addr))
        b.s_addr &= IN_CLASSA_NET;
#else
    /* use /24 for everything */
    b.s_addr &= IN_CLASSC_NET;
#endif
    b.s_addr = htonl(b.s_addr);
    return b;
}

开发者ID:linfengfeiye，项目名称:squid2，代码行数:19，代码来源:net_db.c

示例15: inet_abc_len

static __inline__ int inet_abc_len(u32 addr)
{
  	if (ZERONET(addr))
  		return 0;

  	addr = ntohl(addr);
  	if (IN_CLASSA(addr)) 
  		return 8;
  	if (IN_CLASSB(addr)) 
  		return 16;
  	if (IN_CLASSC(addr)) 
  		return 24;

	/*
	 *	Something else, probably a multicast. 
	 */
  	 
  	return -1;
}

开发者ID:muromec，项目名称:linux-ezxdev，代码行数:19，代码来源:devinet.c

示例16: getnetmask

static unsigned long getnetmask (unsigned long ip_in)
{
	unsigned long t, p = ntohl (ip_in);

	if (IN_CLASSA (p))
		t = ~IN_CLASSA_NET;
	else {
		if (IN_CLASSB (p))
			t = ~IN_CLASSB_NET;
		else {
			if (IN_CLASSC (p))
				t = ~IN_CLASSC_NET;
			else
				t = 0;
		}
	}
	while (t & p) t >>= 1;
	return htonl (~t);
}

开发者ID:BackupTheBerlios，项目名称:dhcpcd-svn，代码行数:19，代码来源:dhcp.c

示例17: resume_networking

void resume_networking(int cancelled)
{
  //struct netif *netif;
  struct ip_addr ipaddr = { htonl(IF_IPADDR) };
  struct ip_addr netmask = { htonl(IF_NETMASK) };
  struct ip_addr gw = { htonl(0xc0a87a01) };
  char *ip = NULL;

#ifdef CONFIG_PRINT
  tprintk("Waiting for network.\n");
#endif

  dev = init_netfront(NULL, NULL, rawmac, &ip);
  if(!cancelled){
    if (ip) {
        ipaddr.addr = inet_addr(ip);
        if (IN_CLASSA(ntohl(ipaddr.addr)))
            netmask.addr = htonl(IN_CLASSA_NET);
        else if (IN_CLASSB(ntohl(ipaddr.addr)))
            netmask.addr = htonl(IN_CLASSB_NET);
        else if (IN_CLASSC(ntohl(ipaddr.addr)))
            netmask.addr = htonl(IN_CLASSC_NET);
        else
            tprintk("Strange IP %s, leaving netmask to 0.\n", ip);
    }
    tprintk("IP %x netmask %x gateway %x.\n",
            ntohl(ipaddr.addr), ntohl(netmask.addr), ntohl(gw.addr));

    netif = xmalloc(struct netif);

    netif_add(netif, &ipaddr, &netmask, &gw, rawmac,
              netif_netfront_init, ip_input);
    netif_set_default(netif);
    netif_set_up(netif);

    down(&tcpip_is_up);
  }

#ifdef CONFIG_SUSPEND
    tprintk("TCP/IP bringup begins.\n");
#endif
}

开发者ID:farewellkou，项目名称:xen，代码行数:42，代码来源:lwip-net.c

示例18: netof

sockaddr_u *
netof(
	sockaddr_u *hostaddr
	)
{
	static sockaddr_u	netofbuf[8];
	static int		next_netofbuf;
	u_int32			netnum;
	sockaddr_u *		netaddr;

	netaddr = &netofbuf[next_netofbuf];
	next_netofbuf = (next_netofbuf + 1) % COUNTOF(netofbuf);

	memcpy(netaddr, hostaddr, sizeof(*netaddr));

	if (IS_IPV4(netaddr)) {
		netnum = SRCADR(netaddr);

		/*
		 * We live in a modern CIDR world where the basement nets, which
		 * used to be class A, are now probably associated with each
		 * host address. So, for class-A nets, all bits are significant.
		 */
		if (IN_CLASSC(netnum))
			netnum &= IN_CLASSC_NET;
		else if (IN_CLASSB(netnum))
			netnum &= IN_CLASSB_NET;

		SET_ADDR4(netaddr, netnum);

	} else if (IS_IPV6(netaddr))
		/* assume the typical /64 subnet size */
		zero_mem(&NSRCADR6(netaddr)[8], 8);
#ifdef DEBUG
	else {
		msyslog(LOG_ERR, "netof unknown AF %d", AF(netaddr));
		exit(1);
	}
#endif

	return netaddr;
}

开发者ID:ajinkya93，项目名称:netbsd-src，代码行数:42，代码来源:netof.c

示例19: netmask_isis_str2prefix_str

/* Utility function to convert ipv4 netmask to prefixes 
   ex.) "1.1.0.0" "255.255.0.0" => "1.1.0.0/16"
   ex.) "1.0.0.0" NULL => "1.0.0.0/8"                   */
int
netmask_isis_str2prefix_str (const char *net_str, const char *mask_str,
			char *prefix_str)
{
  struct in_addr network;
  struct in_addr mask;
  u_char prefixlen;
  u_int32_t destination;
  int ret;

  ret = inet_aton (net_str, &network);
  if (! ret)
    return 0;

  if (mask_str)
    {
      ret = inet_aton (mask_str, &mask);
      if (! ret)
        return 0;

      prefixlen = isis_ip_masklen (mask);
    }
  else 
    {
      destination = ntohl (network.s_addr);

      if (network.s_addr == 0)
	prefixlen = 0;
      else if (IN_CLASSC (destination))
	prefixlen = 24;
      else if (IN_CLASSB (destination))
	prefixlen = 16;
      else if (IN_CLASSA (destination))
	prefixlen = 8;
      else
	return 0;
    }

  sprintf (prefix_str, "%s/%d", net_str, prefixlen);

  return 1;
}

开发者ID:Benocs，项目名称:pmacct，代码行数:45，代码来源:prefix.c

示例20: guess_prefix_len

static unsigned int
guess_prefix_len(struct in_addr addr)
{
	uint32_t prefix = ntohl(addr.s_addr);
	unsigned int len;

	/* At a minimum, use the prefix len for this IPv4 address class. */
	if (IN_CLASSA(prefix))
		len = 8;
	else if (IN_CLASSB(prefix))
		len = 16;
	else if (IN_CLASSC(prefix))
		len = 24;
	else
		len = 0;

	/* If the address has bits beyond the default class,
	 * extend the prefix until we've covered all of them. */
	return len + __count_net_bits(prefix << len);
}

开发者ID:mchf，项目名称:wicked，代码行数:20，代码来源:protocol.c

注：本文中的IN_CLASSC函数示例由纯净天空整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。

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C++ IN_CLASSC函数代码示例

示例1: in_netof

示例2: route_netmask

示例3: apply_classful_mask_ipv4

示例4: get_netmask4

示例5: GetClass

示例6: config_ip_prefix

示例7: inet_class_netmask

示例8: printk

示例9: ipaddrtonetmask

示例10: nl_set_ifaddr

示例11: get_netmask

示例12: start_networking

示例13: get_netmask

示例14: networkFromInaddr

示例15: inet_abc_len

示例16: getnetmask

示例17: resume_networking

示例18: netof

示例19: netmask_isis_str2prefix_str

示例20: guess_prefix_len

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