if (argv[1][0]=='D'){
                demo=1;
                argv[1]++;
        }

        if (argv[1][0]=='P'){
                if (sscanf(argv[1], "P%ux%ux%ux%ux%lfx%ux%u"
                                ,&temporal_resample
                                ,&input_w, &input_h, &rate, &input_gamma
                                ,&output_w
                                ,&output_h)!=7){
                        fprintf(stderr,"%s: Invalid argument format\n", progname);
                        print_usage();
                        exit(3);
                }
                ppm=1; 
         }else{
                if (sscanf(argv[1], "%ux%ux%ux%ux%lfx%ux%u"
                                ,&temporal_resample
                                ,&input_w
                                ,&input_h
                                ,&rate
                                ,&input_gamma
                                ,&output_w
                                ,&output_h)!=7){
                        fprintf(stderr,"%s: Invalid argument format\n", progname);
                        print_usage();
                        exit(3);
                }

int min(int a,int b,int c) //Function to return the minimum.
{
  if(a < b)
  {
    if(a < c)return a;
    else if(a > c)return c;
    else return a;
  }
  else if(a > b)
  {
    if(b < c)return b;
    else if(b > c)return c;
    else return b;
  }
  else
  {
    if(a < c) return a;
    else if(a > c) return c;
    else return a;
  }
}

int t;

if ((t > 1) && (t < 2))
{
    errorString = errorBuffer;
	return -1;
}

file = fopen(argv[1], "r");

if (file == NULL){}
    exit(EXIT_FAILURE);

...
if (alignEntrySize & 1)
    alignEntrySize++;
if (alignEntrySize & 2)
    alignEntrySize += 2;
...

int my_strcmp(const char *out, const char *in   ){
  for( ;*(in) , *(out) &&  *(in) == *(out); *out++,*in++  );
	   return   *in <= *out ?  *out > *in   : -1   ;
	}