#include <ctype.h>
#include <limits.h>
#include <stdio.h>
#include <stdlib.h>

enum arg_count
{
        WIDTH_ONLY_ARGS = 2,
        WIDTH_HEIGHT_ARGS = 3
};

enum arg_position
{
        WIDTH_ARG = 1,
        HEIGHT_ARG = 2
};

#define DECIMAL 10

typedef enum
{
        FALSE,
        TRUE
} BOOLEAN;

BOOLEAN strtoint(const char* str, int* result)
{
        long lresult;
        char* end;
        lresult = strtol(str, &end, DECIMAL);
        if (*end)
        {
                fprintf(stderr, "Error: non-numeric data encountered.\n");
                return FALSE;
        }
        if (lresult < INT_MIN || lresult > INT_MAX)
        {
                fprintf(stderr,
                        "Error: number outside the range of a valid int.\n");
                return FALSE;
        }
        *result = lresult;
        return TRUE;
}

int main(int argc, char** argv)
{
        int width, height;
        switch (argc)
        {
                case WIDTH_ONLY_ARGS:
                        if (strtoint(argv[WIDTH_ARG], &width))
                        {
                                printf("\e[8;35;%dt", width);
                        }
                        else
                        {
                                return EXIT_FAILURE;
                        }
                        break;
                case WIDTH_HEIGHT_ARGS:
                        if (strtoint(argv[WIDTH_ARG], &width) &&
                            strtoint(argv[HEIGHT_ARG], &height))
                        {
                                printf("\e[8;%d;%dt", height, width);
                        }
                        else
                        {
                                return EXIT_FAILURE;
                        }
                        break;
                default:
                        fprintf(stderr,
                                "Error: invalid number of arguments.\n");
                        return EXIT_FAILURE;
        }
        return EXIT_SUCCESS;
}