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authorMiss Islington (bot) <31488909+miss-islington@users.noreply.github.com>2018-10-06 00:06:53 -0700
committerGitHub <noreply@github.com>2018-10-06 00:06:53 -0700
commit177254c96f9258a62e3e571c2aee0b642070a374 (patch)
tree78436621244921b377c0b48934d47abe94de0536
parent22e86fbbca04d251233fc07515885d2b67945094 (diff)
downloadcpython-git-177254c96f9258a62e3e571c2aee0b642070a374.tar.gz
bpo-34910: Ensure that PyObject_Print() always returns -1 on error. (GH-9733)
(cherry picked from commit ae62f015240c9162773341a9922794e6b960779d) Co-authored-by: Zackery Spytz <zspytz@gmail.com>
-rw-r--r--Misc/NEWS.d/next/C API/2018-10-05-17-06-49.bpo-34910.tSFrls.rst2
-rw-r--r--Objects/object.c5
2 files changed, 5 insertions, 2 deletions
diff --git a/Misc/NEWS.d/next/C API/2018-10-05-17-06-49.bpo-34910.tSFrls.rst b/Misc/NEWS.d/next/C API/2018-10-05-17-06-49.bpo-34910.tSFrls.rst
new file mode 100644
index 0000000000..eff4755d8d
--- /dev/null
+++ b/Misc/NEWS.d/next/C API/2018-10-05-17-06-49.bpo-34910.tSFrls.rst
@@ -0,0 +1,2 @@
+Ensure that :c:func:`PyObject_Print` always returns ``-1`` on error. Patch
+by Zackery Spytz.
diff --git a/Objects/object.c b/Objects/object.c
index defff55796..fdd41a6168 100644
--- a/Objects/object.c
+++ b/Objects/object.c
@@ -387,8 +387,9 @@ PyObject_Print(PyObject *op, FILE *fp, int flags)
else if (PyUnicode_Check(s)) {
PyObject *t;
t = PyUnicode_AsEncodedString(s, "utf-8", "backslashreplace");
- if (t == NULL)
- ret = 0;
+ if (t == NULL) {
+ ret = -1;
+ }
else {
fwrite(PyBytes_AS_STRING(t), 1,
PyBytes_GET_SIZE(t), fp);