我们从Python开源项目中，提取了以下12个代码示例，用于说明如何使用socket.h()。
def read_routes(): f=open("/proc/net/route","r") routes = [] s=socket.socket(socket.AF_INET, socket.SOCK_DGRAM) ifreq = ioctl(s, SIOCGIFADDR,struct.pack("16s16x",LOOPBACK_NAME)) addrfamily = struct.unpack("h",ifreq[16:18])[0] if addrfamily == socket.AF_INET: ifreq2 = ioctl(s, SIOCGIFNETMASK,struct.pack("16s16x",LOOPBACK_NAME)) msk = socket.ntohl(struct.unpack("I",ifreq2[20:24])[0]) dst = socket.ntohl(struct.unpack("I",ifreq[20:24])[0]) & msk ifaddr = scapy.utils.inet_ntoa(ifreq[20:24]) routes.append((dst, msk, "0.0.0.0", LOOPBACK_NAME, ifaddr)) else: warning("Interface lo: unkown address family (%i)"% addrfamily) for l in f.readlines()[1:]: iff,dst,gw,flags,x,x,x,msk,x,x,x = l.split() flags = int(flags,16) if flags & RTF_UP == 0: continue if flags & RTF_REJECT: continue try: ifreq = ioctl(s, SIOCGIFADDR,struct.pack("16s16x",iff)) except IOError: # interface is present in routing tables but does not have any assigned IP ifaddr="0.0.0.0" else: addrfamily = struct.unpack("h",ifreq[16:18])[0] if addrfamily == socket.AF_INET: ifaddr = scapy.utils.inet_ntoa(ifreq[20:24]) else: warning("Interface %s: unkown address family (%i)"%(iff, addrfamily)) continue routes.append((socket.htonl(long(dst,16))&0xffffffffL, socket.htonl(long(msk,16))&0xffffffffL, scapy.utils.inet_ntoa(struct.pack("I",long(gw,16))), iff, ifaddr)) f.close() return routes ############ ### IPv6 ### ############
def read_routes(): try: f=open("/proc/net/route","r") except IOError: warning("Can't open /proc/net/route !") return [] routes = [] s=socket.socket(socket.AF_INET, socket.SOCK_DGRAM) ifreq = ioctl(s, SIOCGIFADDR,struct.pack("16s16x",LOOPBACK_NAME)) addrfamily = struct.unpack("h",ifreq[16:18])[0] if addrfamily == socket.AF_INET: ifreq2 = ioctl(s, SIOCGIFNETMASK,struct.pack("16s16x",LOOPBACK_NAME)) msk = socket.ntohl(struct.unpack("I",ifreq2[20:24])[0]) dst = socket.ntohl(struct.unpack("I",ifreq[20:24])[0]) & msk ifaddr = scapy.utils.inet_ntoa(ifreq[20:24]) routes.append((dst, msk, "0.0.0.0", LOOPBACK_NAME, ifaddr)) else: warning("Interface lo: unkown address family (%i)"% addrfamily) for l in f.readlines()[1:]: iff,dst,gw,flags,x,x,x,msk,x,x,x = l.split() flags = int(flags,16) if flags & RTF_UP == 0: continue if flags & RTF_REJECT: continue try: ifreq = ioctl(s, SIOCGIFADDR,struct.pack("16s16x",iff)) except IOError: # interface is present in routing tables but does not have any assigned IP ifaddr="0.0.0.0" else: addrfamily = struct.unpack("h",ifreq[16:18])[0] if addrfamily == socket.AF_INET: ifaddr = scapy.utils.inet_ntoa(ifreq[20:24]) else: warning("Interface %s: unkown address family (%i)"%(iff, addrfamily)) continue routes.append((socket.htonl(long(dst,16))&0xffffffffL, socket.htonl(long(msk,16))&0xffffffffL, scapy.utils.inet_ntoa(struct.pack("I",long(gw,16))), iff, ifaddr)) f.close() return routes ############ ### IPv6 ### ############
def read_routes(): try: f=open("/proc/net/route","rb") except IOError: warning("Can't open /proc/net/route !") return [] routes = [] s=socket.socket(socket.AF_INET, socket.SOCK_DGRAM) ifreq = ioctl(s, SIOCGIFADDR,struct.pack("16s16x",LOOPBACK_NAME.encode('utf-8'))) addrfamily = struct.unpack("h",ifreq[16:18])[0] if addrfamily == socket.AF_INET: ifreq2 = ioctl(s, SIOCGIFNETMASK,struct.pack("16s16x",LOOPBACK_NAME.encode('utf-8'))) msk = socket.ntohl(struct.unpack("I",ifreq2[20:24])[0]) dst = socket.ntohl(struct.unpack("I",ifreq[20:24])[0]) & msk ifaddr = scapy.utils.inet_ntoa(ifreq[20:24]) routes.append((dst, msk, "0.0.0.0", LOOPBACK_NAME, ifaddr)) else: warning("Interface lo: unkown address family (%i)"% addrfamily) for l in f.readlines()[1:]: iff,dst,gw,flags,x,x,x,msk,x,x,x = l.split() flags = int(flags,16) if flags & RTF_UP == 0: continue if flags & RTF_REJECT: continue try: ifreq = ioctl(s, SIOCGIFADDR,struct.pack("16s16x",iff)) except IOError: # interface is present in routing tables but does not have any assigned IP ifaddr="0.0.0.0" else: addrfamily = struct.unpack("h",ifreq[16:18])[0] if addrfamily == socket.AF_INET: ifaddr = scapy.utils.inet_ntoa(ifreq[20:24]) else: warning("Interface %s: unkown address family (%i)"%(iff, addrfamily)) continue routes.append((socket.htonl(int(dst,16))&0xffffffff, socket.htonl(int(msk,16))&0xffffffff, scapy.utils.inet_ntoa(struct.pack("I",int(gw,16))), iff.decode('utf-8'), ifaddr)) f.close() return routes ############ ### IPv6 ### ############
