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/*
* libdpkg - Debian packaging suite library routines
* pkg-list.c - primitives for pkg linked list handling
*
* Copyright © 2009 Guillem Jover <guillem@debian.org>
*
* This is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#include <config.h>
#include <compat.h>
#include <stdlib.h>
#include <dpkg/dpkg.h>
#include <dpkg/dpkg-db.h>
#include <dpkg/pkg-list.h>
/**
* Create a new package list node.
*
* @param pkg The pkginfo to assign to the node.
* @param next The next package list node.
*
* @return The new package list node.
*/
struct pkg_list *
pkg_list_new(struct pkginfo *pkg, struct pkg_list *next)
{
struct pkg_list *node;
node = m_malloc(sizeof(*node));
node->pkg = pkg;
node->next = next;
return node;
}
/**
* Free all nodes of a package list.
*
* @param head The head of the list to free.
*/
void
pkg_list_free(struct pkg_list *head)
{
while (head) {
struct pkg_list *node;
node = head;
head = head->next;
free(node);
}
}
/**
* Prepend a package list node to a package list.
*
* @param head The head of the list to prepend to.
* @param pkg The pkginfo to prepend to the list.
*/
void
pkg_list_prepend(struct pkg_list **head, struct pkginfo *pkg)
{
*head = pkg_list_new(pkg, *head);
}
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