查找文件中是否有 匹配内容

共有 1 条评论

1. 考乌特莫克 于 2011-01-08 02:45:56发表:

   写了个程序实现上面的描述，本想法一下测试结果的但是不能发本地图片，包括包含和不包含的情形都是可以检测到的。大家可以自己编译运行一下：
   
   #include
   #include
   #include
   
   #define MAX_BUFFER_LEN 128
   typedef unsigned char UCHAR;
   typedef unsigned long ULONG;
   
   UCHAR *g_szPath = "./test.conf";
   UCHAR *g_szStr = "hello world!";
   UCHAR aucTMP[MAX_BUFFER_LEN] = {0};
   ULONG g_ulCurLen = 0;
   
   void init_oper()
   {
   memset(aucTMP, 0, MAX_BUFFER_LEN);
   g_ulCurLen = 0;
   
   return;
   }
   
   int main_oper(UCHAR ucWord)
   {
   ULONG ulRet = 0;
   ULONG ulPos = g_ulCurLen;
   
   if (g_szStr[ulPos] == ucWord)
   {
   aucTMP[g_ulCurLen++] = ucWord;
   }
   else
   {
   init_oper();
   }
   
   if (g_ulCurLen == strlen(g_szStr))
   {
   ulRet = 1;
   }
   
   return ulRet;
   }
   
   int main()
   {
   FILE *fp = NULL;
   UCHAR *pucBuffer = NULL;
   ULONG ulLen = 0;
   
   int iRet = 0;
   ULONG i = 0;
   
   fp = fopen(g_szPath, "r");
   if (NULL == fp)
   {
   printf("open file [%s] failed!\n", g_szPath);
   return -1;
   }
   
   /*将文件中的锚标记移动到文件尾*/
   fseek(fp, 0, SEEK_END);
   /*获取文件长度*/
   ulLen = ftell(fp) + 1;
   
   pucBuffer = (char *)malloc(ulLen * sizeof(char));
   if (NULL == pucBuffer)
   {
   fclose(fp);
   printf("malloc len = [%d] failed!\n", ulLen);
   return -1;
   }
   
   rewind(fp);
   if (fgets(pucBuffer, ulLen, fp) == NULL)
   {
   fclose(fp);
   free(pucBuffer);
   printf("fgets failed!\n");
   return -1;
   }
   fclose(fp);
   
   init_oper();
   while(i < ulLen)
   {
   if (0 == pucBuffer[i])
   {
   break;
   }
   
   iRet = main_oper(pucBuffer[i]);
   if (iRet > 0)
   {
   break;
   }
   i++;
   }
   free(pucBuffer);
   
   if (iRet > 0)
   {
   printf("YES\n");
   }
   else
   {
   printf("NO\n");
   }
   
   return 0;
   }