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author | Jouni Malinen <j@w1.fi> | 2015-09-07 22:52:45 +0300 |
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committer | Jouni Malinen <j@w1.fi> | 2015-09-07 22:52:45 +0300 |
commit | b664ef1c0d97dbf8b127408b4b63eb35e36aa5bb (patch) | |
tree | 97d0139e78a44b24d9f81d5746e6b61b73cf0fa9 | |
parent | 53bd8653c2c6b4c34c6419f0cdb37c302961f8f0 (diff) | |
download | hostap-b664ef1c0d97dbf8b127408b4b63eb35e36aa5bb.tar.gz |
WPS: Reduce wps_ap_priority_compar() stack use
There is no need to maintain two concurrent instances of struct
wps_parse_attr in this function. Share a single structure for parsing
both IEs.
Signed-off-by: Jouni Malinen <j@w1.fi>
-rw-r--r-- | src/wps/wps.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/src/wps/wps.c b/src/wps/wps.c index 498f11f05..fbaf85aab 100644 --- a/src/wps/wps.c +++ b/src/wps/wps.c @@ -355,16 +355,16 @@ int wps_is_addr_authorized(const struct wpabuf *msg, const u8 *addr, int wps_ap_priority_compar(const struct wpabuf *wps_a, const struct wpabuf *wps_b) { - struct wps_parse_attr attr_a, attr_b; + struct wps_parse_attr attr; int sel_a, sel_b; - if (wps_a == NULL || wps_parse_msg(wps_a, &attr_a) < 0) + if (wps_a == NULL || wps_parse_msg(wps_a, &attr) < 0) return 1; - if (wps_b == NULL || wps_parse_msg(wps_b, &attr_b) < 0) - return -1; + sel_a = attr.selected_registrar && *attr.selected_registrar != 0; - sel_a = attr_a.selected_registrar && *attr_a.selected_registrar != 0; - sel_b = attr_b.selected_registrar && *attr_b.selected_registrar != 0; + if (wps_b == NULL || wps_parse_msg(wps_b, &attr) < 0) + return -1; + sel_b = attr.selected_registrar && *attr.selected_registrar != 0; if (sel_a && !sel_b) return -1; |