Adding upstream version 4.2.2.upstream/4.2.2

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 123 insertions, 0 deletions

diff --git a/wiretap/ruby_marshal.c b/wiretap/ruby_marshal.c
new file mode 100644
index 00000000..026f7b65
--- /dev/null
+++ b/wiretap/ruby_marshal.c
@@ -0,0 +1,123 @@
+/* ruby_marshal.c
+ *
+ * Routines for reading a binary file containing a ruby marshal object
+ *
+ * Copyright 2018, Dario Lombardo <lomato@gmail.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+#include "config.h"
+
+#include <string.h>
+
+#include "wtap-int.h"
+#include "file_wrappers.h"
+
+#include "ruby_marshal.h"
+
+static int ruby_marshal_file_type_subtype = -1;
+
+void register_ruby_marshal(void);
+
+static gboolean is_ruby_marshal(const guint8* filebuf)
+{
+    if (filebuf[0] != RUBY_MARSHAL_MAJOR)
+        return FALSE;
+    if (filebuf[1] != RUBY_MARSHAL_MINOR)
+        return FALSE;
+    switch (filebuf[2]) {
+        case '0':
+        case 'T':
+        case 'F':
+        case 'i':
+        case ':':
+        case '"':
+        case 'I':
+        case '[':
+        case '{':
+        case 'f':
+        case 'c':
+        case 'm':
+        case 'S':
+        case '/':
+        case 'o':
+        case 'C':
+        case 'e':
+        case ';':
+        case '@':
+            return TRUE;
+            break;
+        default:
+            return FALSE;
+    }
+}
+
+wtap_open_return_val ruby_marshal_open(wtap *wth, int *err, gchar **err_info)
+{
+    /* The size of this buffer should match the expectations of is_ruby_marshal */
+    guint8 filebuf[3];
+    int bytes_read;
+
+    bytes_read = file_read(filebuf, sizeof(filebuf), wth->fh);
+    if (bytes_read < 0) {
+        /* Read error. */
+        *err = file_error(wth->fh, err_info);
+        return WTAP_OPEN_ERROR;
+    }
+
+    if (bytes_read != sizeof(filebuf) || !is_ruby_marshal(filebuf)) {
+        return WTAP_OPEN_NOT_MINE;
+    }
+
+    if (file_seek(wth->fh, 0, SEEK_SET, err) == -1) {
+        return WTAP_OPEN_ERROR;
+    }
+
+    wth->file_type_subtype = ruby_marshal_file_type_subtype;
+    wth->file_encap = WTAP_ENCAP_RUBY_MARSHAL;
+    wth->file_tsprec = WTAP_TSPREC_SEC;
+    wth->subtype_read = wtap_full_file_read;
+    wth->subtype_seek_read = wtap_full_file_seek_read;
+    wth->snapshot_length = 0;
+
+    return WTAP_OPEN_MINE;
+}
+
+static const struct supported_block_type ruby_marshal_blocks_supported[] = {
+    /*
+     * We support packet blocks, with no comments or other options.
+     */
+    { WTAP_BLOCK_PACKET, MULTIPLE_BLOCKS_SUPPORTED, NO_OPTIONS_SUPPORTED }
+};
+
+static const struct file_type_subtype_info ruby_marshal_info = {
+    "Ruby marshal files", "ruby_marshal", NULL, NULL,
+    FALSE, BLOCKS_SUPPORTED(ruby_marshal_blocks_supported),
+    NULL, NULL, NULL
+};
+
+void register_ruby_marshal(void)
+{
+    ruby_marshal_file_type_subtype = wtap_register_file_type_subtype(&ruby_marshal_info);
+
+    /*
+     * Register name for backwards compatibility with the
+     * wtap_filetypes table in Lua.
+     */
+    wtap_register_backwards_compatibility_lua_name("RUBY_MARSHAL",
+                                                   ruby_marshal_file_type_subtype);
+}
+
+/*
+ * Editor modelines  -  https://www.wireshark.org/tools/modelines.html
+ *
+ * Local variables:
+ * c-basic-offset: 4
+ * tab-width: 8
+ * indent-tabs-mode: nil
+ * End:
+ *
+ * vi: set shiftwidth=4 tabstop=8 expandtab:
+ * :indentSize=4:tabSize=8:noTabs=true:
+ */