çekbw

void kullanici_ekle()
{
	system("cls");
	first_memur();
	first_kullanici();
	user_information();
	Sleep(3000);
	system("cls");
	struct kullanici users;
	
	FILE *add_user;
	fopen_s(&add_user, "user_information.dat", "a");
	if (add_user == NULL)
		printf("user_information.dat acilamadi.");
	else
	{
		printf("Isim giriniz : ");
		gets_s(users.ad);
		_flushall();
		printf("Soyisim giriniz : ");
		gets_s(users.soyad);
		_flushall();
		printf("TC-Kimlik giriniz : ");
		gets_s(users.tckimlik);
		_flushall();
		printf("Telefon giriniz : ");
		gets_s(users.telefon);
		_flushall();
		printf("E-Posta giriniz : ");
		gets_s(users.eposta);
		_flushall();

		printf("Kullanici adini giriniz : ");
		gets_s(users.kullanici_adi);
		_flushall();
		FILE *ch;

		fopen_s(&ch, "adminsifre.dat", "r");
		int lines_allocated = 1000;
		int max_line_len = 150;
		int i;
		char **words = (char **)malloc(sizeof(char*)*lines_allocated);
		for (i = 0; 1; i++)
		{
			int j;
			if (i >= lines_allocated)
			{
				int new_size;
				new_size = lines_allocated * 2;
				words = (char **)realloc(words, sizeof(char*)*new_size);
				if (words == NULL)
				{
					fprintf(stderr, "Out of memory.\n");
					exit(3);
				}
				lines_allocated = new_size;
			}
			words[i] = (char*)malloc(max_line_len);
			if (words[i] == NULL)
			{
				fprintf(stderr, "Out of memory (3).\n");
				exit(4);
			}
			if (fgets(words[i], max_line_len - 1, ch) == NULL)
				break;
			for (j = strlen(words[i]) - 1; j >= 0 && (words[i][j] == '\n' || words[i][j] == '\r'); j--)
				words[i][j] = '\0';
		}
		for (int k = 3; k < sizeof(words); k = k + 2){
			if (strcmp(users.kullanici_adi, words[0]) == 0){
				printf("\t Gecersiz Kullanici Adi !!");
				break;
			}
			else if (strcmp(users.kullanici_adi, words[k]) == 0){
				printf("\t Gecersiz Kullanici Adi !!");
				break;
			}
			else{
				printf("Sifrenizi giriniz : ");
				gets_s(users.sifre);
				_flushall();
				do{
					printf("Yetki turunu giriniz(Admin = a,Memur = m, Kullanici = k) : ");
					users.yetki_turu = getchar();
					_flushall();
				} while (users.yetki_turu != 97 && users.yetki_turu != 107 && users.yetki_turu != 109);
				printf("Il : ");
				gets_s(users.address.il);
				_flushall();
				printf("İlce : ");
				gets_s(users.address.ilce);
				_flushall();
				printf("Cadde : ");
				gets_s(users.address.cadde);
				_flushall();
				printf("Mahalle : ");
				gets_s(users.address.mahalle);
				_flushall();
				printf("Sokak : ");
				gets_s(users.address.sokak);
				_flushall();
				printf("Apartman : ");
				gets_s(users.address.apartman);
				_flushall();
				printf("No : ");
				gets_s(users.address.no);
				_flushall();
				fprintf(add_user, "%s\t%s\t%s\t%s\t%s\t%s\t%c\t%s\t%s\t%s\t%s\t%s\t%s\t%s\n", users.ad, users.soyad, users.tckimlik, users.telefon, users.eposta, users.kullanici_adi,
					users.yetki_turu, users.address.il, users.address.ilce, users.address.cadde, users.address.mahalle, users.address.sokak, users.address.apartman, users.address.no);
				if (users.yetki_turu == 'a')
				{
					fopen_s(&add_user, "adminsifre.dat", "a");
					fprintf(add_user, "\n%s\n%s", users.kullanici_adi, users.sifre);
				}
				else if (users.yetki_turu == 'm')
				{
					fopen_s(&add_user, "memursifre.dat", "a");
					fprintf(add_user, "\n%s\n%s", users.kullanici_adi, users.sifre);
				}
				else if (users.yetki_turu == 'k')
				{
					fopen_s(&add_user, "kullanicisifre.dat", "a");
					fprintf(add_user, "\n%s\n%s", users.kullanici_adi, users.sifre);
				}
				break;
			}
			

		}

	}
	fclose(add_user);
	fclose(ch);
}