Improve test coverage:

* Add new tests of archive_{read,write}_open_{fd,FILE,filename}
* Refactor the corresponding code to reduce the number of unreachable
  cases and eliminate a lot of duplicated code.  In particular,
  {read,write}_open_filename now simply invoke {read,write}_open_fd to
  handle handle the fallback case of reading stdin when called with an
  empty filename.
* Eliminate the unnecessary "open" callbacks; "open" callbacks are
  never needed (I plan to eliminate them from the API someday).

SVN-Revision: 868

1 files changed, 15 insertions, 32 deletions

diff --git a/libarchive/archive_write_open_filename.c b/libarchive/archive_write_open_filename.c
index 72eeb540..b9ae1747 100644
--- a/libarchive/archive_write_open_filename.c
+++ b/libarchive/archive_write_open_filename.c
@@ -71,24 +71,18 @@ archive_write_open_filename(struct archive *a, const char *filename)
 {
 	struct write_file_data *mine;
 
-	if (filename == NULL || filename[0] == '\0') {
-		mine = (struct write_file_data *)malloc(sizeof(*mine));
-		if (mine == NULL) {
-			archive_set_error(a, ENOMEM, "No memory");
-			return (ARCHIVE_FATAL);
-		}
-		mine->filename[0] = '\0'; /* Record that we're using stdout. */
-	} else {
-		mine = (struct write_file_data *)malloc(sizeof(*mine) + strlen(filename));
-		if (mine == NULL) {
-			archive_set_error(a, ENOMEM, "No memory");
-			return (ARCHIVE_FATAL);
-		}
-		strcpy(mine->filename, filename);
+	if (filename == NULL || filename[0] == '\0')
+		return (archive_write_open_fd(a, 0));
+
+	mine = (struct write_file_data *)malloc(sizeof(*mine) + strlen(filename));
+	if (mine == NULL) {
+		archive_set_error(a, ENOMEM, "No memory");
+		return (ARCHIVE_FATAL);
 	}
+	strcpy(mine->filename, filename);
 	mine->fd = -1;
 	return (archive_write_open(a, mine,
-		    file_open, file_write, file_close));
+		file_open, file_write, file_close));
 }
 
 static int
@@ -104,21 +98,11 @@ file_open(struct archive *a, void *client_data)
 	/*
 	 * Open the file.
 	 */
-	if (mine->filename[0] != '\0') {
-		mine->fd = open(mine->filename, flags, 0666);
-		if (mine->fd < 0) {
-			archive_set_error(a, errno, "Failed to open '%s'",
-			    mine->filename);
-			return (ARCHIVE_FATAL);
-		}
-	} else {
-		/*
-		 * NULL filename is stdout.
-		 */
-		mine->fd = 1;
-		/* By default, pad archive when writing to stdout. */
-		if (archive_write_get_bytes_in_last_block(a) < 0)
-			archive_write_set_bytes_in_last_block(a, 0);
+	mine->fd = open(mine->filename, flags, 0666);
+	if (mine->fd < 0) {
+		archive_set_error(a, errno, "Failed to open '%s'",
+		    mine->filename);
+		return (ARCHIVE_FATAL);
 	}
 
 	if (fstat(mine->fd, &st) != 0) {
@@ -172,8 +156,7 @@ file_close(struct archive *a, void *client_data)
 	struct write_file_data	*mine = (struct write_file_data *)client_data;
 
 	(void)a; /* UNUSED */
-	if (mine->filename[0] != '\0')
-		close(mine->fd);
+	close(mine->fd);
 	free(mine);
 	return (ARCHIVE_OK);
 }