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wpa_debug: Support outputting hexdumps into syslog

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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; size_t i;
if (level < wpa_debug_level) if (level < wpa_debug_level)
return; 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(); wpa_debug_print_timestamp();
#ifdef CONFIG_DEBUG_FILE #ifdef CONFIG_DEBUG_FILE
if (out_file) { if (out_file) {