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wpa_debug: Support outputting hexdumps into syslog 

This patch allows to log hexdumps into syslog.

This is useful when testing, as syslog's network logging
helps to collect debug outputs from several machines.

Signed-hostapd: Nicolas Cavallari <cavallar@lri.fr>
This commit is contained in:
Nicolas Cavallari 2012-01-29 12:13:43 +02:00 committed by Jouni Malinen
parent 4ac384c596
commit f31e19df3a
1 changed files with 32 additions and 0 deletions
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32
src/utils/wpa_debug.c
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@ -166,6 +166,38 @@ static void _wpa_hexdump(int level, const char *title, const u8 *buf,
size_t i;
if (level < wpa_debug_level)
return;
#ifdef CONFIG_DEBUG_SYSLOG
if (wpa_debug_syslog) {
const char *display;
char *strbuf = NULL;
if (buf == NULL) {
display = " [NULL]";
} else if (len == 0) {
display = "";
} else if (show && len) {
strbuf = os_malloc(1 + 3 * len);
if (strbuf == NULL) {
wpa_printf(MSG_ERROR, "wpa_hexdump: Failed to "
"allocate message buffer");
return;
}
for (i = 0; i < len; i++)
os_snprintf(&strbuf[i * 3], 4, " %02x",
buf[i]);
display = strbuf;
} else {
display = " [REMOVED]";
}
syslog(syslog_priority(level), "%s - hexdump(len=%lu):%s",
title, len, display);
os_free(strbuf);
return;
}
#endif /* CONFIG_DEBUG_SYSLOG */
wpa_debug_print_timestamp();
#ifdef CONFIG_DEBUG_FILE
if (out_file) {