Don't set real_executable if readlink returns an empty string

FFY00 · FFY00 · commit b70fd54cbf4f · 2026-03-04T18:43:58.000Z
Signed-off-by: Filipe Laíns &lt;lains@riseup.net&gt;
diff --git a/Modules/getpath.c b/Modules/getpath.c
@@ -799,7 +799,7 @@ progname_to_dict(PyObject *dict, const char *key)
     }
 #elif defined(HAVE_READLINK)
     wchar_t resolved[MAXPATHLEN + 1];
-    if (_Py_wreadlink(L"/proc/self/exe", resolved, Py_ARRAY_LENGTH(resolved)) != -1) {
+    if (_Py_wreadlink(L"/proc/self/exe", resolved, Py_ARRAY_LENGTH(resolved)) > 0) {
         return wchar_to_dict(dict, key, resolved);
     }
 #endif

Original file line number	Diff line number	Diff line change
`@@ -799,7 +799,7 @@ progname_to_dict(PyObject dict, const char key)`
`799`	`799`	`}`
`800`	`800`	`#elif defined(HAVE_READLINK)`
`801`	`801`	`wchar_t resolved[MAXPATHLEN + 1];`
`802`		`- if (_Py_wreadlink(L"/proc/self/exe", resolved, Py_ARRAY_LENGTH(resolved)) != -1) {`
	`802`	`+ if (_Py_wreadlink(L"/proc/self/exe", resolved, Py_ARRAY_LENGTH(resolved)) > 0) {`
`803`	`803`	`return wchar_to_dict(dict, key, resolved);`
`804`	`804`	`}`
`805`	`805`	`#endif`