Need help with option parsing arguments!!

Hey!!

I have a project for my university to be done.I have almost complete the whole program but i have little problem(i think...)

the exercise tells me that the call of the program must be something like this:
progname -c C1 C2 -f file1 file2 -o fileoutput

C1,C2 are integers numbers
can anyone plz help me..

thanks.!

 

Code:

/* something on the foll lines */

void main(int argc, char* argv[])
{
	int i, c1,  c2, opt = 0, error = 0;
	char *file1, *file2, *fileoutput;
	
	for( i = 1; i < argc && opt <= 'o' ; i++ )
	{
		if( ! strcmp(argv[ i ], "-c" )
		{
			if( opt == 0 )
			{
				opt = 'c';
				continue;
			}
			else
			{
				error = 1;
			}
				
		}
		else if( opt == 0 )  /* expecting -c */
			error = 1;
		
		if( ! strcmp(argv[ i ], "-f" )
		{
			if( opt == 'e' )
			{
				opt = 'f';
				continue;
			}
			else
			{
				error = 1;
			}
		}
		else if( opt == 'e' )  /* expecting -f */
			error = 1;
		
		if( ! strcmp(argv[ i ], "-o" )
		{
			if( opt == 'h' )
			{
				opt = 'o';
				continue;
			}
			else
			{
				error = 1;
			}
		}
		else if( opt == 'h' ) /* expecting -o */
			error = 1;
		
		if( error )
		{
			printf("parameters to program incorrect\n");
			exit(1);
		}
		
		if( opt == 'c' )
		{
			c1 = atoi(argv[ i ]);
			opt = 'd';   /* next param for 2nd integer */
		}
			
		if( opt == 'd' )  /* 2nd integer */
		{
			c2 = atoi(argv[ i ]);
			opt = 'e';   /* prep to read file names */
		}
		
		if( opt == 'f' )
		{
			f1 = argv[ i ];
			opt = 'g'; 
		}
		
		if( opt == 'g' )  /* 2nd filename */
		{
			f2 = argv[ i ];
			opt = 'h'; 
		}
		
		if( opt == 'o' )
		{
			fileoutput = argv[ i ];
			opt = 'q';
		}
	}
	
	if( opt != 'q' || i < argc )
	{
		printf("parameters to program incorrect\n");
		exit(1);
	}
		
	/* rest of your program below */
}

 

Code:

void main(int argc, char* argv[])
{
	int c1 = 0,  c2 = 0;
	char *file1 = NULL, *file2 = NULL, *fileoutput = NULL;
	bool bNoError = false;

	if(argc != 9)
	{
		printf("invalid number of arguments\n");
		printf("usage : progname -c C1 C2 -f file1 file2 -o fileoutput\n");
		exit(1);
	}

	//////////////////////////////////////////////////////////////////////////

	int i = 1;

	if (strcmp(argv[i],"-c") == 0)
	{	
		i++;
		c1 = atoi(argv[i]);

		i++;
		c2 = atoi(argv[i]);

		bNoError = true;
	}

	i++;
	if (strcmp(argv[i],"-f") == 0)
	{	
		i++;
		file1 = argv[i];

		i++;
		file2 = argv[i];

		bNoError &= true;
	}

	i++;
	if (strcmp(argv[i],"-o") == 0)
	{	
		i++;
		fileoutput = argv[i];

		bNoError &= true;
	}

	//////////////////////////////////////////////////////////////////////////
	

	if(bNoError == false)
	{
		printf("parameters to program incorrect\n");
		exit(1);
	}
	else
	{
		printf("argv[1] : %s\n",argv[1]);
		printf("argv[2] : %d\n",c1);
		printf("argv[3] : %d\n",c2);
		printf("argv[4] : %s\n",argv[4]);
		printf("argv[5] : %s\n",file1);
		printf("argv[6] : %s\n",file2);
		printf("argv[7] : %s\n",argv[7]);
		printf("argv[8] : %s\n",fileoutput);
	}
}