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

static char *
getpkgname(const char *str)
{
	const char *p;
	char *buf;
	size_t len;

	if ((p = strrchr(str, '-')) == NULL)
		return NULL;

	if (strrchr(p, '_') == NULL)
		return NULL;

	len = strlen(str) - strlen(p) + 1;
	buf = malloc(len);
	strncpy(buf, str, len-1);
	buf[len] = '\0';

	return buf;
}

static const char *
getpkgver(const char *str)
{
	const char *p;

	if ((p = strrchr(str, '-')) == NULL)
		return NULL;

	if (strrchr(p, '_') == NULL)
		return NULL;

	return p + 1;
}

int main(int argc, char **argv)
{
	printf("name: %s ver: %s\n", getpkgname(argv[1]), getpkgver(argv[1]));
	return 0;
}