Use correct C type for file sizes

We have been using unsigned long as a file size type for a while, which
works but isn't quite correct and could easily break. Worse was probably our
use of int in the download callback functions, which could be restrictive
for packages > 2GB in size.

Switch all file size variables to use off_t, which is the preferred type for
file sizes. Note that at least on Linux, all applications compiled against
libalpm must now be sure to use large file support, where _FILE_OFFSET_BITS
is defined to be 64 or there will be some weird issues that crop up.

Signed-off-by: Dan McGee <dan@archlinux.org>

1 files changed, 3 insertions, 1 deletions

diff --git a/lib/libalpm/graph.h b/lib/libalpm/graph.h
index 3078e25f..72a7136f 100644
--- a/lib/libalpm/graph.h
+++ b/lib/libalpm/graph.h
@@ -17,6 +17,8 @@
  *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+#include <sys/types.h> /* off_t */
+
 #include "alpm_list.h"
 #include "util.h" /* MALLOC() */
 #include "alpm.h"
@@ -24,7 +26,7 @@
 struct __pmgraph_t {
 	char state; /* 0: untouched, -1: entered, other: leaving time */
 	void *data;
-	unsigned long int weight; /* weight of the node */
+	off_t weight; /* weight of the node */
 	struct __pmgraph_t *parent; /* where did we come from? */
 	alpm_list_t *children;
 	alpm_list_t *childptr; /* points to a child in children list */