ip白名单 通过* ？ 检测IP匹配 轻量级

?

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112

#include "stdafx.h" #include <windows.h> #include <string.h> #include <assert.h>        const int maxCount = 100; const int strMaxLen = 16;               BOOLEAN IsMatchPattern(const char* ipPattern,const char* ipChar) {  char* delims = ".";  char* pPattern[4] = {0};  char* pIp[4] = {0};  char i = 0,j = 0;;  char _ipPattern[strMaxLen] = {0};  char _ipChar[strMaxLen] = {0};    if( !ipPattern || !ipChar)   return FALSE;    // *字符前后只允许为.字符  if('*' == ipPattern[0] && '.' != ipPattern[1])   return FALSE;  if( '*' == ipPattern[strlen(ipPattern)-1] && '.' != ipPattern[strlen(ipPattern)-2])   return FALSE;  for(i = 1;i < (strlen(ipPattern)-2);i++)  {   if( '*' == ipPattern[i])    if( '.' != ipPattern[i-1] || '.' != ipPattern[i+1] )     return FALSE;   continue;  }    memcpy(_ipPattern,ipPattern,strlen(ipPattern));  memcpy(_ipChar,ipChar,strlen(ipChar));      pPattern[0] =strtok(_ipPattern,delims);  for(i = 1 ;i < 4;i++)  {   pPattern[i] =strtok(NULL,delims);  }    pIp[0] =strtok(_ipChar,delims);  for(i = 1 ;i < 4;i++)  {   pIp[i] =strtok(NULL,delims);  }    // 分解字符串检测 按'.'分成四个子字符串 每个字符串长度不超过3  for(i = 0 ;i < 4;i++)  {   if(strlen(pPattern[i]) > 3)    return FALSE;  }    for(i = 0 ;i < 4;i++)  {   if(strlen(pIp[i]) > 3)    return FALSE;  }         // 检测字符串匹配 有*号则放过检测   for(i = 0;i < 4;i++)  {   if( memcmp((void*)(pPattern[i]),"*",1) ==0 )   {    continue;   }   if( strlen(pPattern[i]) != strlen(pIp[i]) )    return FALSE;   for(j = 0;j < strlen(pPattern[i]);j++)   {    char* subchPattern = pPattern[i];    char* subchIp = pIp[i];    if(subchPattern[j] != '?' && subchPattern[j] != subchIp[j])     return FALSE;   }  }    return TRUE; }          int _tmain(int argc, _TCHAR* argv[]) {  char ipCheckPattern[strMaxLen] = "192.*.?2?.87";    assert( FALSE == IsMatchPattern(ipCheckPattern,"192.168.1.99") );  assert( FALSE == IsMatchPattern(ipCheckPattern,"192.168.272.87") );  assert( TRUE == IsMatchPattern(ipCheckPattern,"192.168.120.87") );  assert( TRUE == IsMatchPattern(ipCheckPattern,"192.122.223.87") );  assert( FALSE == IsMatchPattern(ipCheckPattern,"172.19.66.87") );  assert( FALSE == IsMatchPattern(ipCheckPattern,"172.0.0.87") );  assert( TRUE == IsMatchPattern(ipCheckPattern,"192.178.129.87") );  assert( FALSE == IsMatchPattern(ipCheckPattern,"192.212.17.71") );    return 0; }