アプレットじこよう

FILE *fp = NULL;
 char buf[256+1] = {0};
 
fp = fopen("/proc/bus/usb/devices","r");
 if(fp == NULL)
 {
  printf("%s %d  
",__FUNCTION__, __LINE__);
  return 1;
 }
 while(!feof(fp))
 {
  fgets(buf,256,fp);
  if(buf == NULL)
   break;
  //printf("buf===[%s]
",buf);
  char *p = NULL;
  p = strstr(buf,"Ralink");
  if(p)
  {
   fclose(fp);
   return 0;
  }  
 }
 fclose(fp);
 return 1;
 
 
 char *cmd = "iwconfig ra0 |grep \"Link Quality\" > /tmp/wifi_quality";
FILE *fp = NULL;
    char buf[256+1] = {0};
    char quality[5] = {0,};
    fp = fopen("/tmp/wifi_quality","r");
 
 while(!feof(fp))
    {
        fgets(buf,256,fp);
        if(buf == NULL)
            break;
        char *p = NULL;
        p = strstr(buf,"Link Quality");
        if(p)
        {
            fclose(fp);
              int i = 0;
            int k = 0;
            for(i=0;i