From 359422c97cce93bbb27051f9df3efb45bd0b9052 Mon Sep 17 00:00:00 2001
From: Aldrik Ramaekers <aldrikboy@gmail.com>
Date: Sat, 23 Aug 2025 11:18:44 +0200
Subject: settings file writing

---
 libs/zip/fuzz/fuzz_stream.c | 40 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 40 insertions(+)
 create mode 100644 libs/zip/fuzz/fuzz_stream.c

(limited to 'libs/zip/fuzz/fuzz_stream.c')

diff --git a/libs/zip/fuzz/fuzz_stream.c b/libs/zip/fuzz/fuzz_stream.c
new file mode 100644
index 0000000..6c557de
--- /dev/null
+++ b/libs/zip/fuzz/fuzz_stream.c
@@ -0,0 +1,40 @@
+#include "zip.h"
+#include <assert.h>
+#include <stdint.h>
+#include <stdlib.h>
+
+int LLVMFuzzerTestOneInput(const uint8_t *data, const size_t size) {
+  /* Discard inputs larger than 1MB. */
+  static const size_t MaxSize = 1024 * 1024;
+  if (size < 1 || size > MaxSize) {
+    return 0;
+  }
+
+  char *outbuf = NULL;
+  size_t outbufsize = 0;
+  {
+    struct zip_t *zip =
+        zip_stream_open(NULL, 0, ZIP_DEFAULT_COMPRESSION_LEVEL, 'w');
+    zip_entry_open(zip, "test");
+    zip_entry_write(zip, data, size);
+    zip_entry_close(zip);
+    zip_stream_copy(zip, (void **)&outbuf, &outbufsize);
+    zip_stream_close(zip);
+  }
+
+  void *inbuf = NULL;
+  size_t inbufsize = 0;
+  {
+    struct zip_t *zip = zip_stream_open(outbuf, outbufsize, 0, 'r');
+    zip_entry_open(zip, "test");
+    zip_entry_read(zip, &inbuf, &inbufsize);
+    zip_entry_close(zip);
+    zip_stream_close(zip);
+  }
+  free(inbuf);
+  free(outbuf);
+
+  assert(inbufsize == size);
+
+  return 0;
+}
-- 
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