返回char*

char *get_cur_version()
{
    static char line[128];
    memset(line,0,sizeof(line));
    
    FILE *fp;
    fp = fopen("/etc/version","r");
    if( NULL == fp) 
        return NULL;
    fread(line,1,128,fp);
    fclose(fp);
    if (line[strlen(line)-1] == ‘\n‘)
        line[strlen(line)-1] = 0;

    return line;
}