Python获取本机所有网卡ip，掩码和广播地址实例代码
本文主要研究的是使用Python获取本机所有网卡ip，掩码和广播地址，分享了相关的实例代码，具体介绍如下。
搜了一天，竟然没找到一段合适的代码来获取机器中所有网卡的ip，掩码和广播地址，大部分都是用socket，但是socket通常返回的要不就是内网地址，要不就是公网地址，不能够找到所有地址，真的太忧桑了，决定自己通过ifconfig或ipconfig的返回信息，一步步地过滤了。这次的代码主要用到了正则表达式和subprocess模块，而且为了兼容所有平台（win，linux和mac），也用到了platform来判断系统类型，不说太多，代码如下：
importsubprocess
importre
importplatform
deffind_all_ip(platform):
ipstr='([0-9]{1,3}\.){3}[0-9]{1,3}'
ifplatform=="Darwin"orplatform=="Linux":
ipconfig_process=subprocess.Popen("ifconfig",stdout=subprocess.PIPE)
output=ipconfig_process.stdout.read()
ip_pattern=re.compile('(inet%s)'%ipstr)
ifplatform=="Linux":
ip_pattern=re.compile('(inetaddr:%s)'%ipstr)
pattern=re.compile(ipstr)
iplist=[]
foripaddrinre.finditer(ip_pattern,str(output)):
ip=pattern.search(ipaddr.group())
ifip.group()!="127.0.0.1":
iplist.append(ip.group())
returniplist
elifplatform=="Windows":
ipconfig_process=subprocess.Popen("ipconfig",stdout=subprocess.PIPE)
output=ipconfig_process.stdout.read()
ip_pattern=re.compile("IPv4Address(\.)*:%s"%ipstr)
pattern=re.compile(ipstr)
iplist=[]
foripaddrinre.finditer(ip_pattern,str(output)):
ip=pattern.search(ipaddr.group())
ifip.group()!="127.0.0.1":
iplist.append(ip.group())
returniplist
deffind_all_mask(platform):
ipstr='([0-9]{1,3}\.){3}[0-9]{1,3}'
maskstr='0x([0-9a-f]{8})'
ifplatform=="Darwin"orplatform=="Linux":
ipconfig_process=subprocess.Popen("ifconfig",stdout=subprocess.PIPE)
output=ipconfig_process.stdout.read()
mask_pattern=re.compile('(netmask%s)'%maskstr)
pattern=re.compile(maskstr)
ifplatform=="Linux":
mask_pattern=re.compile(r'Mask:%s'%ipstr)
pattern=re.compile(ipstr)
masklist=[]
formaskaddrinmask_pattern.finditer(str(output)):
mask=pattern.search(maskaddr.group())
ifmask.group()!='0xff000000'andmask.group()!='255.0.0.0':
masklist.append(mask.group())
returnmasklist
elifplatform=="Windows":
ipconfig_process=subprocess.Popen("ipconfig",stdout=subprocess.PIPE)
output=ipconfig_process.stdout.read()
mask_pattern=re.compile(r"SubnetMask(\.)*:%s"%ipstr)
pattern=re.compile(ipstr)
masklist=[]
formaskaddrinmask_pattern.finditer(str(output)):
mask=pattern.search(maskaddr.group())
ifmask.group()!='255.0.0.0':
masklist.append(mask.group())
returnmasklist
defget_broad_addr(ipstr,maskstr):
iptokens=map(int,ipstr.split("."))
masktokens=map(int,maskstr.split("."))
broadlist=[]
foriinrange(len(iptokens)):
ip=iptokens[i]
mask=masktokens[i]
broad=ip&mask|(~mask&255)
broadlist.append(broad)
return'.'.join(map(str,broadlist))
deffind_all_broad(platform):
ipstr='([0-9]{1,3}\.){3}[0-9]{1,3}'
ifplatform=="Darwin"orplatform=="Linux":
ipconfig_process=subprocess.Popen("ifconfig",stdout=subprocess.PIPE)
output=(ipconfig_process.stdout.read())
broad_pattern=re.compile('(broadcast%s)'%ipstr)
ifplatform=="Linux":
broad_pattern=re.compile(r'Bcast:%s'%ipstr)
pattern=re.compile(ipstr)
broadlist=[]
forbroadaddrinbroad_pattern.finditer(str(output)):
broad=pattern.search(broadaddr.group())
broadlist.append(broad.group())
returnbroadlist
elifplatform=="Windows":
iplist=find_all_ip(platform)
masklist=find_all_mask(platform)
broadlist=[]
foriinrange(len(iplist)):
broadlist.append(get_broad_addr(iplist[i],masklist[i]))
returnbroadlist
system=platform.system()
print(find_all_ip(system))
print(find_all_mask(system))
print(find_all_broad(system))
总结
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