DGNum/hostapd
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Use os_memdup()

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This leads to cleaner code overall, and also reduces the size
of the hostapd and wpa_supplicant binaries (in hwsim test build
on x86_64) by about 2.5 and 3.5KiB respectively.

The mechanical conversions all over the code were done with
the following spatch:

    @@
    expression SIZE, SRC;
    expression a;
    @@
    -a = os_malloc(SIZE);
    +a = os_memdup(SRC, SIZE);
    <...
    if (!a) {...}
    ...>
    -os_memcpy(a, SRC, SIZE);

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Johannes Berg 2017-03-07 10:17:23 +01:00 • committed by Jouni Malinen
parent dbdda355d0
commit a1f11e34c4
73 changed files with 201 additions and 376 deletions
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6
src/ap/ieee802_11.c
View file

@ -2715,12 +2715,11 @@ static void handle_assoc(struct hostapd_data *hapd,
/* The end of the payload is encrypted. Need to decrypt it
* before parsing. */
tmp = os_malloc(left);
tmp = os_memdup(pos, left);
if (!tmp) {
resp = WLAN_STATUS_UNSPECIFIED_FAILURE;
goto fail;
}
os_memcpy(tmp, pos, left);
left = fils_decrypt_assoc(sta->wpa_sm, sta->fils_session, mgmt,
len, tmp, left);
@ -3188,10 +3187,9 @@ static int handle_action(struct hostapd_data *hapd,
*/
wpa_printf(MSG_DEBUG, "IEEE 802.11: Return unknown Action "
"frame back to sender");
resp = os_malloc(len);
resp = os_memdup(mgmt, len);
if (resp == NULL)
return 0;
os_memcpy(resp, mgmt, len);
os_memcpy(resp->da, resp->sa, ETH_ALEN);
os_memcpy(resp->sa, hapd->own_addr, ETH_ALEN);
os_memcpy(resp->bssid, hapd->own_addr, ETH_ALEN);