udhcpd: fix hostname truncation bug 1663

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

diff --git a/networking/udhcp/leases.c b/networking/udhcp/leases.c
index 4999d8079eadf54088297915f97df8a0d0a8c714..fad71ec6c0c85a530c7f33cadfcee64e66057d53 100644 (file)
--- a/networking/udhcp/leases.c
+++ b/networking/udhcp/leases.c
@@ -60,6 +60,8 @@ struct dyn_lease* FAST_FUNC add_lease(
                memset(oldest, 0, sizeof(*oldest));
                if (hostname) {
                        char *p;
+
+                       hostname_len++; /* include NUL */
                        if (hostname_len > sizeof(oldest->hostname))
                                hostname_len = sizeof(oldest->hostname);
                        p = safe_strncpy(oldest->hostname, hostname, hostname_len);