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-rw-r--r--busybox/archival/libunarchive/seek_by_char.c32
1 files changed, 32 insertions, 0 deletions
diff --git a/busybox/archival/libunarchive/seek_by_char.c b/busybox/archival/libunarchive/seek_by_char.c
new file mode 100644
index 0000000..a50d566
--- /dev/null
+++ b/busybox/archival/libunarchive/seek_by_char.c
@@ -0,0 +1,32 @@
+/*
+ * This program 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 program 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 Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#include <stdlib.h>
+
+#include "unarchive.h"
+#include "busybox.h"
+
+/* If we are reading through a pipe(), or from stdin then we cant lseek,
+ * we must read and discard the data to skip over it.
+ *
+ * TODO: rename to seek_by_read
+ */
+extern void seek_by_char(const archive_handle_t *archive_handle, const unsigned int jump_size)
+{
+ if (jump_size) {
+ bb_copyfd_size(archive_handle->src_fd, -1, jump_size);
+ }
+}