1 files changed, 72 insertions, 0 deletions
diff --git a/src/Common/libzip/zip_source_get_dostime.c b/src/Common/libzip/zip_source_get_dostime.c
new file mode 100644
index 00000000..17f652bb
--- /dev/null
+++ b/src/Common/libzip/zip_source_get_dostime.c
@@ -0,0 +1,72 @@
+/*
+  zip_source_get_dostime.c -- get modification time in DOS format from source
+  Copyright (C) 2024 Dieter Baron and Thomas Klausner
+
+  This file is part of libzip, a library to manipulate ZIP archives.
+  The authors can be contacted at <info@libzip.org>
+
+  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"
+
+/* Returns -1 on error, 0 on no dostime available, 1 for dostime returned */
+int
+zip_source_get_dos_time(zip_source_t *src, zip_dostime_t *dos_time) {
+    if (src->source_closed) {
+        return -1;
+    }
+    if (dos_time == NULL) {
+        zip_error_set(&src->error, ZIP_ER_INVAL, 0);
+        return -1;
+    }
+
+    if (src->write_state == ZIP_SOURCE_WRITE_REMOVED) {
+        zip_error_set(&src->error, ZIP_ER_READ, ENOENT);
+    }
+
+    if (zip_source_supports(src) & ZIP_SOURCE_MAKE_COMMAND_BITMASK(ZIP_SOURCE_GET_DOS_TIME)) {
+        zip_int64_t n = _zip_source_call(src, dos_time, sizeof(*dos_time), ZIP_SOURCE_GET_DOS_TIME);
+
+        if (n < 0) {
+            return -1;
+        }
+        else if (n == 0) {
+            return 0;
+        }
+        else if (n == sizeof(*dos_time)) {
+            return 1;
+        }
+        else {
+            zip_error_set(&src->error, ZIP_ER_INTERNAL, 0);
+            return -1;
+        }
+    }
+    else {
+        return 0;
+    }
+}