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-rw-r--r--src/bootp.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/bootp.c b/src/bootp.c
index 3ade02c..a0eb17a 100644
--- a/src/bootp.c
+++ b/src/bootp.c
@@ -351,7 +351,7 @@ static void bootp_reply(Slirp *slirp,
we assume that, if the bootfile parameter was configured as an http
URL, the user intends to perform UEFI HTTP boot, so send this option
automatically */
- if (g_str_has_prefix(slirp->bootp_filename, "http://")) {
+ if (slirp->bootp_filename && g_str_has_prefix(slirp->bootp_filename, "http://")) {
val = strlen(UEFI_HTTP_VENDOR_CLASS_ID);
if (q + val + 2 >= end) {
g_warning("DHCP packet size exceeded, "