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Add printf NULL checks to silence static analyzer

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Add NULL checks to take care of issues reported by static analyzer tool
on potentially using NULL with printf format %s (which has undefined
behavior even though many compilers end up printing "(null)").

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This commit is contained in:
Srinivas Girigowda 2014-08-28 18:25:32 +03:00 committed by Jouni Malinen
parent d6df0d7e62
commit db9418bb1b
2 changed files with 6 additions and 3 deletions
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2
hostapd/hostapd_cli.c
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@ -844,6 +844,8 @@ static int hostapd_cli_cmd_interface(struct wpa_ctrl *ctrl, int argc,
hostapd_cli_close_connection();
os_free(ctrl_ifname);
ctrl_ifname = os_strdup(argv[0]);
if (ctrl_ifname == NULL)
return -1;
if (hostapd_cli_open_connection(ctrl_ifname)) {
printf("Connected to interface '%s.\n", ctrl_ifname);

7
hostapd/main.c
View file

@ -97,14 +97,15 @@ static void hostapd_logger_cb(void *ctx, const u8 *addr, unsigned int module,
else if (hapd && hapd->conf)
os_snprintf(format, maxlen, "%s:%s%s %s",
hapd->conf->iface, module_str ? " " : "",
module_str, txt);
module_str ? module_str : "", txt);
else if (addr)
os_snprintf(format, maxlen, "STA " MACSTR "%s%s: %s",
MAC2STR(addr), module_str ? " " : "",
module_str, txt);
module_str ? module_str : "", txt);
else
os_snprintf(format, maxlen, "%s%s%s",
module_str, module_str ? ": " : "", txt);
module_str ? module_str : "",
module_str ? ": " : "", txt);
if ((conf_stdout & module) && level >= conf_stdout_level) {
wpa_debug_print_timestamp();