--- src/extract.c~before~preallocate 2006-03-29 12:03:07.000000000 -0800
+++ src/extract.c 2006-03-29 12:04:17.000000000 -0800
@@ -49,6 +49,10 @@ struct copyfile_list_entry_t {
extern LIST_HEAD(copyfile_list_t, copyfile_list_entry_t) copyfile_list;
#endif
+#ifdef __APPLE__
+#include <sys/mount.h>
+#endif /* __APPLE__ */
+
bool we_are_root; /* true if our effective uid == 0 */
static mode_t newdir_umask; /* umask when creating new directories */
static mode_t current_umask; /* current umask (which is set to 0 if -p) */
@@ -762,6 +766,10 @@ extract_archive (void)
{
static int conttype_diagnosed;
+#ifdef __APPLE__
+ /* XXX Would be nice to suppress this warning if we pre-allocate. */
+#endif /* __APPLE__ */
+
if (!conttype_diagnosed)
{
conttype_diagnosed = 1;
@@ -784,6 +792,20 @@ extract_archive (void)
break;
}
+#ifdef __APPLE__
+ /* Attempts to pre-allocate blocks for the destination file. */
+ if (!current_stat_info.is_sparse) {
+ fstore_t fst;
+
+ fst.fst_flags = 0;
+ fst.fst_posmode = F_PEOFPOSMODE;
+ fst.fst_offset = 0;
+ fst.fst_length = current_stat_info.stat.st_size;
+
+ (void)fcntl(fd, F_PREALLOCATE, &fst);
+ }
+#endif /* __APPLE__ */
+
extract_file:
if (current_stat_info.is_sparse)
{