1 files changed, 67 insertions, 0 deletions
diff --git a/ext/zip/lib/zip_add_entry.c b/ext/zip/lib/zip_add_entry.c
new file mode 100644
index 0000000000..5cbc9574ad
--- /dev/null
+++ b/ext/zip/lib/zip_add_entry.c
@@ -0,0 +1,67 @@
+/*
+  zip_add_entry.c -- create and init struct zip_entry
+  Copyright (C) 1999-2012 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 <stdlib.h>
+
+#include "zipint.h"
+
+
+
+/* NOTE: Signed due to -1 on error.  See zip_add.c for more details. */
+
+zip_int64_t
+_zip_add_entry(struct zip *za)
+{
+    zip_uint64_t idx;
+
+    if (za->nentry+1 >= za->nentry_alloc) {
+	struct zip_entry *rentries;
+	zip_uint64_t nalloc = za->nentry_alloc + 16;
+        /* TODO check for overflow */
+	rentries = (struct zip_entry *)realloc(za->entry, sizeof(struct zip_entry) * (size_t)nalloc);
+	if (!rentries) {
+	    _zip_error_set(&za->error, ZIP_ER_MEMORY, 0);
+	    return -1;
+	}
+	za->entry = rentries;
+	za->nentry_alloc = nalloc;
+    }
+
+    idx = za->nentry++;
+
+    _zip_entry_init(za->entry+idx);
+
+    return (zip_int64_t)idx;
+}