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authorAntoine Pitrou <solipsis@pitrou.net>2010-05-21 17:12:38 (GMT)
committerAntoine Pitrou <solipsis@pitrou.net>2010-05-21 17:12:38 (GMT)
commit6a2656094d1806abc5229758246865bcbaa34c5e (patch)
tree787da764ae5b179c79182e62976314c6bfb8c9d4 /Python
parenta85bd06a82276863382b825de82aaa89760b0fa1 (diff)
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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>`_.
Diffstat (limited to 'Python')
-rw-r--r--Python/sysmodule.c10
1 files changed, 8 insertions, 2 deletions
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 @@ makeargvobject(int argc, char **argv)
}
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 @@ PySys_SetArgv(int argc, char **argv)
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 @@ PySys_SetArgv(int argc, char **argv)
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.