#include "sandbox.h"
#include <sys/stat.h>
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>

void find_fullpath(char **path, int _free)
{
	char *result;
	char *cwd;

	cwd = get_current_dir_name();
	asprintf(&result, "%s/%s", cwd, *path);
	if (_free)
		free(*path);
	free(cwd);
	*path = result;
}

int fileinfo_compare(const void *a, const void *b)
{
	return strcmp(((t_fileinfo *)a)->filename, (char *)b) == 0;
}

int fileinfo_compare_fd(const void *a, const void *fd)
{
	return sllist_find(((t_fileinfo *)a)->fds, sllist_cmp_int, fd) != -1;
}

t_fileinfo *get_fileinfo(const struct s_sandboxenv *env, const char * filename)
{
	int i;

	i = sllist_find(env->filetable, fileinfo_compare, filename);
	if (i == -1)
		return NULL;
	return sllist_at(env->filetable, i);
}

t_fileinfo *get_fileinfo_fd(const struct s_sandboxenv *env, const int fd)
{
	int i;
	REGISTER_TYPE _fd = (REGISTER_TYPE) fd;

	i = sllist_find(env->filetable, fileinfo_compare_fd, (void *)_fd);
	if (i == -1)
		return NULL;
	return sllist_at(env->filetable, i);
}

int file_exists(const char*path)
{
	struct stat buf;

	if (stat(path, &buf) == -1 && errno == ENOENT)
		return 0;
	return 1;
}

unsigned long long int hash_path(const char *filename)
{
	unsigned long long int result;

	for (result =0; *filename; ++filename)
		result = (result << 5) - result + *filename;
	return result;
}