diff options
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/boot/i386/libi386/pxe.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/sys/boot/i386/libi386/pxe.c b/sys/boot/i386/libi386/pxe.c index e452bc4..27c8608 100644 --- a/sys/boot/i386/libi386/pxe.c +++ b/sys/boot/i386/libi386/pxe.c @@ -159,8 +159,10 @@ pxe_init(void) return (0); /* look for "PXENV+" */ - if (bcmp((void *)pxenv_p->Signature, S_SIZE("PXENV+"))) + if (bcmp((void *)pxenv_p->Signature, S_SIZE("PXENV+"))) { + pxenv_p = NULL; return (0); + } /* make sure the size is something we can handle */ if (pxenv_p->Length > sizeof(*pxenv_p)) { @@ -307,7 +309,7 @@ pxe_close(struct open_file *f) static void pxe_print(int verbose) { - if (pxenv_p != NULL) { + if (pxe_p != NULL) { if (*bootplayer.Sname == '\0') { printf(" "IP_STR":%s\n", IP_ARGS(htonl(bootplayer.sip)), @@ -387,8 +389,11 @@ static int pxe_netif_probe(struct netif *nif, void *machdep_hint) { t_PXENV_UDP_OPEN *udpopen_p = (t_PXENV_UDP_OPEN *)scratch_buffer; - bzero(udpopen_p, sizeof(*udpopen_p)); + if (pxe_p == NULL) + return -1; + + bzero(udpopen_p, sizeof(*udpopen_p)); udpopen_p->src_ip = bootplayer.yip; pxe_call(PXENV_UDP_OPEN); |
