glib2/SOURCES/0009-gsocket-Use-gsize-to-track-native-sockaddr-s-size.patch
2021-09-09 17:38:49 +00:00

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From 4d5c5d6af772f5fe6121eec403305a1b4340327d Mon Sep 17 00:00:00 2001
From: Philip Withnall <pwithnall@endlessos.org>
Date: Thu, 4 Feb 2021 14:00:53 +0000
Subject: [PATCH 09/12] =?UTF-8?q?gsocket:=20Use=20gsize=20to=20track=20nat?=
=?UTF-8?q?ive=20sockaddr=E2=80=99s=20size?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Dont use an `int`, thats potentially too small. In practical terms,
this is not a problem, since no socket address is going to be that big.
By making these changes we can use `g_memdup2()` without warnings,
though. Fewer warnings is good.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
Helps: #2319
---
gio/gsocket.c | 17 +++++++++++------
1 file changed, 11 insertions(+), 6 deletions(-)
diff --git a/gio/gsocket.c b/gio/gsocket.c
index b4a941eb1..7f41ffd3c 100644
--- a/gio/gsocket.c
+++ b/gio/gsocket.c
@@ -80,6 +80,8 @@
#include "gwin32networking.h"
#endif
+#include "gstrfuncsprivate.h"
+
/**
* SECTION:gsocket
* @short_description: Low-level socket object
@@ -173,7 +175,7 @@ static gboolean g_socket_datagram_based_condition_wait (GDatagramBased
GError **error);
static GSocketAddress *
-cache_recv_address (GSocket *socket, struct sockaddr *native, int native_len);
+cache_recv_address (GSocket *socket, struct sockaddr *native, size_t native_len);
static gssize
g_socket_receive_message_with_timeout (GSocket *socket,
@@ -270,7 +272,7 @@ struct _GSocketPrivate
struct {
GSocketAddress *addr;
struct sockaddr *native;
- gint native_len;
+ gsize native_len;
guint64 last_used;
} recv_addr_cache[RECV_ADDR_CACHE_SIZE];
};
@@ -5018,14 +5020,14 @@ g_socket_send_messages_with_timeout (GSocket *socket,
}
static GSocketAddress *
-cache_recv_address (GSocket *socket, struct sockaddr *native, int native_len)
+cache_recv_address (GSocket *socket, struct sockaddr *native, size_t native_len)
{
GSocketAddress *saddr;
gint i;
guint64 oldest_time = G_MAXUINT64;
gint oldest_index = 0;
- if (native_len <= 0)
+ if (native_len == 0)
return NULL;
saddr = NULL;
@@ -5033,7 +5035,7 @@ cache_recv_address (GSocket *socket, struct sockaddr *native, int native_len)
{
GSocketAddress *tmp = socket->priv->recv_addr_cache[i].addr;
gpointer tmp_native = socket->priv->recv_addr_cache[i].native;
- gint tmp_native_len = socket->priv->recv_addr_cache[i].native_len;
+ gsize tmp_native_len = socket->priv->recv_addr_cache[i].native_len;
if (!tmp)
continue;
@@ -5063,7 +5065,7 @@ cache_recv_address (GSocket *socket, struct sockaddr *native, int native_len)
g_free (socket->priv->recv_addr_cache[oldest_index].native);
}
- socket->priv->recv_addr_cache[oldest_index].native = g_memdup (native, native_len);
+ socket->priv->recv_addr_cache[oldest_index].native = g_memdup2 (native, native_len);
socket->priv->recv_addr_cache[oldest_index].native_len = native_len;
socket->priv->recv_addr_cache[oldest_index].addr = g_object_ref (saddr);
socket->priv->recv_addr_cache[oldest_index].last_used = g_get_monotonic_time ();
@@ -5213,6 +5215,9 @@ g_socket_receive_message_with_timeout (GSocket *socket,
{
win32_unset_event_mask (socket, FD_READ);
+ /* addrlen has to be of type int because thats how WSARecvFrom() is defined */
+ G_STATIC_ASSERT (sizeof addr <= G_MAXINT);
+
addrlen = sizeof addr;
if (address)
result = WSARecvFrom (socket->priv->fd,
--
2.31.1