1 files changed, 82 insertions, 0 deletions
diff --git a/ext/zip/lib/zip_replace.c b/ext/zip/lib/zip_replace.c
new file mode 100644
index 000000000..ae78e62b8
--- /dev/null
+++ b/ext/zip/lib/zip_replace.c
@@ -0,0 +1,82 @@
+/*
+  $NiH: zip_replace.c,v 1.20 2006/04/09 14:52:02 wiz Exp $
+
+  zip_replace.c -- replace file via callback function
+  Copyright (C) 1999, 2003, 2004, 2006 Dieter Baron and Thomas Klausner
+
+  This file is part of libzip, a library to manipulate ZIP archives.
+  The authors can be contacted at <nih@giga.or.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 "zip.h"
+#include "zipint.h"
+
+
+
+int
+zip_replace(struct zip *za, int idx, struct zip_source *source)
+{
+    if (idx < 0 || idx >= za->nentry || source == NULL) {
+	_zip_error_set(&za->error, ZIP_ER_INVAL, 0);
+	return -1;
+    }
+
+    if (_zip_replace(za, idx, NULL, source) == -1)
+	return -1;
+
+    return 0;
+}
+
+
+
+
+int
+_zip_replace(struct zip *za, int idx, const char *name,
+	     struct zip_source *source)
+{
+	if (idx == -1) {
+		if (_zip_entry_new(za) == NULL)
+			return -1;
+		idx = za->nentry - 1;
+	}
+
+   
+    _zip_unchange_data(za->entry+idx);
+
+    if (name && _zip_set_name(za, idx, name) != 0)
+		return -1;
+ 
+
+    za->entry[idx].state = ((za->cdir == NULL || idx >= za->cdir->nentry)
+			    ? ZIP_ST_ADDED : ZIP_ST_REPLACED);
+    za->entry[idx].source = source;
+
+    return idx;
+}