fix: libwayland null guards made durable — appended to redox.patch

Three null-safety additions to wayland-client.c, now in the recipe's redox.patch so they survive source rebuilds: - wl_proxy_add_listener: return -1 on NULL (prevents null+8 page fault) - wl_proxy_get_version: return 0 on NULL - wl_proxy_get_display: return NULL on NULL
2026-05-06 13:44:57 +01:00
parent 8883184f47
commit 9f19ecf7b6
1 changed files with 28 additions and 1 deletions
@@ -36,4 +36,31 @@
 +}
 #include <sys/file.h>
 #include <sys/stat.h>
- 
+--- a/src/wayland-client.c
++++ b/src/wayland-client.c
+@@ -649,6 +649,11 @@
+ wl_proxy_add_listener(struct wl_proxy *proxy,
+ 		      void (**implementation)(void), void *data)
+ {
++	if (!proxy) {
++		fprintf(stderr, "FATAL: wl_proxy_add_listener(NULL) caller=%p -- returning error\n",
++		        __builtin_return_address(0));
++		return -1;
++	}
+ 	if (proxy->flags & WL_PROXY_FLAG_WRAPPER)
+ 		wl_abort("Proxy %p is a wrapper\n", proxy);
+ 
+@@ -2448,6 +2453,7 @@
+ wl_proxy_get_version(struct wl_proxy *proxy)
+ {
++	if (!proxy) return 0;
+ 	return proxy->version;
+ }
+ 
+@@ -2566,6 +2572,7 @@
+ wl_proxy_get_display(struct wl_proxy *proxy)
+ {
++	if (!proxy) return NULL;
+ 	return proxy->display;
+ }
+