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

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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
This commit is contained in:
Vasilito
2026-05-06 13:44:57 +01:00
parent 8883184f47
commit 9f19ecf7b6
1 changed files with 28 additions and 1 deletions
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local/patches/libwayland/redox.patch
+28 -1
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@@ -36,4 +36,31 @@
+} +}
#include <sys/file.h> #include <sys/file.h>
#include <sys/stat.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;
+ }