1 files changed, 76 insertions, 0 deletions
diff --git a/ext/zip/lib/zip_source_open.c b/ext/zip/lib/zip_source_open.c
new file mode 100644
index 000000000..2c768f7f3
--- /dev/null
+++ b/ext/zip/lib/zip_source_open.c
@@ -0,0 +1,76 @@
+/*
+  zip_source_open.c -- open zip_source (prepare for reading)
+  Copyright (C) 2009 Dieter Baron and Thomas Klausner
+
+  This file is part of libzip, a library to manipulate ZIP archives.
+  The authors can be contacted at <libzip@nih.at>
+
+  Redistribution and use in source and binary forms, with or without
+  modification, are permitted provided that the following conditions
+  are met:
+  1. Redistributions of source code must retain the above copyright
+     notice, this list of conditions and the following disclaimer.
+  2. Redistributions in binary form must reproduce the above copyright
+     notice, this list of conditions and the following disclaimer in
+     the documentation and/or other materials provided with the
+     distribution.
+  3. The names of the authors may not be used to endorse or promote
+     products derived from this software without specific prior
+     written permission.
+ 
+  THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS
+  OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+  ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY
+  DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+  DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
+  GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+  IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+  OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+  IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+
+
+#include "zipint.h"
+
+
+
+ZIP_EXTERN(int)
+zip_source_open(struct zip_source *src)
+{
+    zip_int64_t ret;
+
+    if (src->is_open) {
+	src->error_source = ZIP_LES_INVAL;
+	return -1;
+    }
+
+    if (src->src == NULL) {
+	if (src->cb.f(src->ud, NULL, 0, ZIP_SOURCE_OPEN) < 0)
+	    return -1;
+    }
+    else {
+	if (zip_source_open(src->src) < 0) {
+	    src->error_source = ZIP_LES_LOWER;
+	    return -1;
+	}
+
+	ret = src->cb.l(src->src, src->ud, NULL, 0, ZIP_SOURCE_OPEN);
+	
+	if (ret < 0) {
+	    (void)zip_source_close(src->src);
+	    
+	    if (ret == ZIP_SOURCE_ERR_LOWER)
+		src->error_source = ZIP_LES_LOWER;
+	    else
+		src->error_source = ZIP_LES_UPPER;
+	    return -1;
+	}
+    }
+
+    src->is_open = 1;
+    
+    return 0;
+}