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-rw-r--r--resolv/Makefile1
-rw-r--r--resolv/inet_addr.c2
-rw-r--r--resolv/tst-inet_addr-binary.c30
3 files changed, 32 insertions, 1 deletions
diff --git a/resolv/Makefile b/resolv/Makefile
index cc69b4e60b..5128bd0bc1 100644
--- a/resolv/Makefile
+++ b/resolv/Makefile
@@ -88,6 +88,7 @@ routines += gai_sigqueue
tests += \
tst-bug18665 \
tst-bug18665-tcp \
+ tst-inet_addr-binary \
tst-ns_name \
tst-ns_name_compress \
tst-ns_name_pton \
diff --git a/resolv/inet_addr.c b/resolv/inet_addr.c
index 136792ebfa..9bb67594e5 100644
--- a/resolv/inet_addr.c
+++ b/resolv/inet_addr.c
@@ -130,7 +130,7 @@ inet_aton_end (const char *cp, struct in_addr *addr, const char **endp)
goto ret_0;
{
char *endp;
- unsigned long ul = strtoul (cp, &endp, 0);
+ unsigned long ul = __strtoul_internal (cp, &endp, 0, 0);
if (ul == ULONG_MAX && errno == ERANGE)
goto ret_0;
if (ul > 0xfffffffful)
diff --git a/resolv/tst-inet_addr-binary.c b/resolv/tst-inet_addr-binary.c
new file mode 100644
index 0000000000..14a7152567
--- /dev/null
+++ b/resolv/tst-inet_addr-binary.c
@@ -0,0 +1,30 @@
+/* Test inet_addr does not accept C2X binary constants.
+ Copyright (C) 2022-2023 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
+
+#include <arpa/inet.h>
+
+#include <support/check.h>
+
+static int
+do_test (void)
+{
+ TEST_COMPARE (inet_addr ("0b101"), (in_addr_t) -1);
+ return 0;
+}
+
+#include <support/test-driver.c>