diff options
| -rw-r--r-- | slirp/tftp.c | 15 |
1 files changed, 7 insertions, 8 deletions
diff --git a/slirp/tftp.c b/slirp/tftp.c index 3358e2b..5d5614a 100644 --- a/slirp/tftp.c +++ b/slirp/tftp.c @@ -287,6 +287,12 @@ static void tftp_handle_rrq(struct tftp_t *tp, int pktlen) spt = &tftp_sessions[s]; + /* unspecifed prefix means service disabled */ + if (!tftp_prefix) { + tftp_send_error(spt, 2, "Access violation", tp); + return; + } + src = tp->x.tp_buf; dst = spt->filename; n = pktlen - ((uint8_t *)&tp->x.tp_buf[0] - (uint8_t *)tp); @@ -333,13 +339,6 @@ static void tftp_handle_rrq(struct tftp_t *tp, int pktlen) return; } - /* only allow exported prefixes */ - - if (!tftp_prefix) { - tftp_send_error(spt, 2, "Access violation", tp); - return; - } - /* check if the file exists */ if (tftp_read_data(spt, 0, spt->filename, 0) < 0) { @@ -370,7 +369,7 @@ static void tftp_handle_rrq(struct tftp_t *tp, int pktlen) int tsize = atoi(value); struct stat stat_p; - if (tsize == 0 && tftp_prefix) { + if (tsize == 0) { char buffer[1024]; int len; |
