Issue #5753: A new C API function, :cfunc:`PySys_SetArgvEx`, allows
embedders of the interpreter to set sys.argv without also modifying
sys.path. This helps fix `CVE-2008-5983
<http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-5983>`_.
diff --git a/Python/sysmodule.c b/Python/sysmodule.c
index 7cfa15d..97ce8cd 100644
--- a/Python/sysmodule.c
+++ b/Python/sysmodule.c
@@ -1649,7 +1649,7 @@
}
void
-PySys_SetArgv(int argc, char **argv)
+PySys_SetArgvEx(int argc, char **argv, int updatepath)
{
#if defined(HAVE_REALPATH)
char fullpath[MAXPATHLEN];
@@ -1662,7 +1662,7 @@
Py_FatalError("no mem for sys.argv");
if (PySys_SetObject("argv", av) != 0)
Py_FatalError("can't assign sys.argv");
- if (path != NULL) {
+ if (updatepath && path != NULL) {
char *argv0 = argv[0];
char *p = NULL;
Py_ssize_t n = 0;
@@ -1752,6 +1752,12 @@
Py_DECREF(av);
}
+void
+PySys_SetArgv(int argc, char **argv)
+{
+ PySys_SetArgvEx(argc, argv, 1);
+}
+
/* APIs to write to sys.stdout or sys.stderr using a printf-like interface.
Adapted from code submitted by Just van Rossum.