#include <stdio.h>
#include <string.h>
#include <libgen.h>

void remove_suffix(char *base, const char *suffix) {
	char *ptr = base + strlen(base) - strlen(suffix);
	if (!strcmp(ptr, suffix))
		*ptr = '\0';
}

int main(const int argc, char **argv) {
	char *suffix = NULL;
	char *base = NULL;

	int i;
	for (i = 1; i < argc; i++) {
		if (argv[i][0] != '-')
			break;

		else if (!strcmp(argv[i], "--help")) {
			printf("basename [name] [suffix]\n");
			return 0;
		}
	}

	if (argc - i < 1) {
		fprintf(stderr, "basename: missing operand\n");
		return 1;
	}

	else if (argc - i == 2)
		suffix = argv[i + 1];

	base = basename(argv[i]);
	if (suffix)
		remove_suffix(base, suffix);

	puts(base);
	return 0;
}