compatibility: handle strscpy_pad()

1 files changed, 16 insertions, 0 deletions

diff --git a/kernel/include/linux/netfilter/ipset/ip_set_compat.h.in b/kernel/include/linux/netfilter/ipset/ip_set_compat.h.in
index 7d3f536..b109549 100644
--- a/kernel/include/linux/netfilter/ipset/ip_set_compat.h.in
+++ b/kernel/include/linux/netfilter/ipset/ip_set_compat.h.in
@@ -52,6 +52,7 @@
 #@HAVE_TYPEDEF_SCTP_SCTPHDR_T@ HAVE_TYPEDEF_SCTP_SCTPHDR_T
 #@HAVE_TIMER_SETUP@ HAVE_TIMER_SETUP
 #@HAVE_STRSCPY@ HAVE_STRSCPY
+#@HAVE_STRSCPY_PAD@ HAVE_STRSCPY_PAD
 #@HAVE_SYNCHRONIZE_RCU_BH@ HAVE_SYNCHRONIZE_RCU_BH
 #@HAVE_LOCKDEP_NFNL_IS_HELD@ HAVE_LOCKDEP_NFNL_IS_HELD
 #@HAVE_COND_RESCHED_RCU@ HAVE_COND_RESCHED_RCU
@@ -514,6 +515,21 @@ static inline ssize_t strscpy(char * dest, const char * src, size_t count)
 }
 #endif
 
+#ifndef HAVE_STRSCPY_PAD
+static inline ssize_t strscpy_pad(char *dest, const char *src, size_t count)
+{
+	ssize_t written;
+
+	written = strscpy(dest, src, count);
+	if (written < 0 || written == count - 1)
+		return written;
+
+	memset(dest + written + 1, 0, count - written - 1);
+
+	return written;
+}
+#endif
+
 #ifndef HAVE_NLA_STRSCPY
 #define nla_strscpy	nla_strlcpy
 #endif