From fd2bb2f751c13b3c0c002b8e012810902b9da364 Mon Sep 17 00:00:00 2001
From: "A. Wilcox" <AWilcox@Wilcox-Tech.com>
Date: Fri, 8 Jun 2018 02:02:24 -0500
Subject: harmony -> system

---
 ...-add-Z-option-to-adjust-message-timezones.patch | 104 +++++++++++++++++++++
 1 file changed, 104 insertions(+)
 create mode 100644 system/busybox/0009-sysklogd-add-Z-option-to-adjust-message-timezones.patch

(limited to 'system/busybox/0009-sysklogd-add-Z-option-to-adjust-message-timezones.patch')

diff --git a/system/busybox/0009-sysklogd-add-Z-option-to-adjust-message-timezones.patch b/system/busybox/0009-sysklogd-add-Z-option-to-adjust-message-timezones.patch
new file mode 100644
index 000000000..2624675c4
--- /dev/null
+++ b/system/busybox/0009-sysklogd-add-Z-option-to-adjust-message-timezones.patch
@@ -0,0 +1,104 @@
+From 1cb2e911c47f1b798ee610deabbea21ba6fb6961 Mon Sep 17 00:00:00 2001
+From: Shiz <hi@shiz.me>
+Date: Mon, 8 May 2017 23:09:13 +0200
+Subject: [PATCH 09/11] sysklogd: add -Z option to adjust message timezones
+
+Some syslog() implementations like musl's[1] always send timestamps in UTC.
+This change adds a new option to syslogd, -Z, to assume incoming timestamps
+are always UTC and adjust them to the local timezone (of the syslogd) before
+logging.
+
+[1]: http://www.openwall.com/lists/musl/2014/01/29/1
+
+Signed-off-by: Shiz <hi@shiz.me>
+---
+ sysklogd/syslogd.c | 23 +++++++++++++++++++----
+ 1 file changed, 19 insertions(+), 4 deletions(-)
+
+diff --git a/sysklogd/syslogd.c b/sysklogd/syslogd.c
+index d64ff278f..159336ed7 100644
+--- a/sysklogd/syslogd.c
++++ b/sysklogd/syslogd.c
+@@ -122,6 +122,7 @@
+ //usage:       "(this version of syslogd ignores /etc/syslog.conf)\n"
+ //usage:	)
+ //usage:     "\n	-n		Run in foreground"
++//usage:     "\n	-Z		Adjust incoming UTC times to local time"
+ //usage:	IF_FEATURE_REMOTE_LOG(
+ //usage:     "\n	-R HOST[:PORT]	Log to HOST:PORT (default PORT:514)"
+ //usage:     "\n	-L		Log locally and via network (default is network only if -R)"
+@@ -233,6 +234,8 @@ typedef struct logRule_t {
+ 	/*int markInterval;*/                   \
+ 	/* level of messages to be logged */    \
+ 	int logLevel;                           \
++	/* whether to adjust message timezone */\
++	int adjustTimezone;                     \
+ IF_FEATURE_ROTATE_LOGFILE( \
+ 	/* max size of file before rotation */  \
+ 	unsigned logFileSize;                   \
+@@ -316,6 +319,7 @@ enum {
+ 	OPTBIT_outfile, // -O
+ 	OPTBIT_loglevel, // -l
+ 	OPTBIT_small, // -S
++	OPTBIT_adjusttz, // -Z
+ 	IF_FEATURE_ROTATE_LOGFILE(OPTBIT_filesize   ,)	// -s
+ 	IF_FEATURE_ROTATE_LOGFILE(OPTBIT_rotatecnt  ,)	// -b
+ 	IF_FEATURE_REMOTE_LOG(    OPTBIT_remotelog  ,)	// -R
+@@ -330,6 +334,7 @@ enum {
+ 	OPT_outfile     = 1 << OPTBIT_outfile ,
+ 	OPT_loglevel    = 1 << OPTBIT_loglevel,
+ 	OPT_small       = 1 << OPTBIT_small   ,
++	OPT_adjusttz    = 1 << OPTBIT_adjusttz,
+ 	OPT_filesize    = IF_FEATURE_ROTATE_LOGFILE((1 << OPTBIT_filesize   )) + 0,
+ 	OPT_rotatecnt   = IF_FEATURE_ROTATE_LOGFILE((1 << OPTBIT_rotatecnt  )) + 0,
+ 	OPT_remotelog   = IF_FEATURE_REMOTE_LOG(    (1 << OPTBIT_remotelog  )) + 0,
+@@ -339,7 +344,7 @@ enum {
+ 	OPT_cfg         = IF_FEATURE_SYSLOGD_CFG(   (1 << OPTBIT_cfg        )) + 0,
+ 	OPT_kmsg        = IF_FEATURE_KMSG_SYSLOG(   (1 << OPTBIT_kmsg       )) + 0,
+ };
+-#define OPTION_STR "m:nO:l:S" \
++#define OPTION_STR "m:nO:l:SZ" \
+ 	IF_FEATURE_ROTATE_LOGFILE("s:" ) \
+ 	IF_FEATURE_ROTATE_LOGFILE("b:" ) \
+ 	IF_FEATURE_REMOTE_LOG(    "R:*") \
+@@ -815,17 +820,23 @@ static void timestamp_and_log(int pri, char *msg, int len)
+ {
+ 	char *timestamp;
+ 	time_t now;
++	struct tm nowtm = { .tm_isdst = 0 };
+ 
+ 	/* Jan 18 00:11:22 msg... */
+ 	/* 01234567890123456 */
+ 	if (len < 16 || msg[3] != ' ' || msg[6] != ' '
+ 	 || msg[9] != ':' || msg[12] != ':' || msg[15] != ' '
+ 	) {
+-		time(&now);
++		now = time(NULL);
+ 		timestamp = ctime(&now) + 4; /* skip day of week */
+ 	} else {
+-		now = 0;
+-		timestamp = msg;
++		if (G.adjustTimezone && strptime(msg, "%b %e %T", &nowtm)) {
++			now = mktime(&nowtm) - timezone;
++			timestamp = ctime(&now) + 4; /* skip day of week */
++		} else {
++			now = 0;
++			timestamp = msg;
++		}
+ 		msg += 16;
+ 	}
+ 	timestamp[15] = '\0';
+@@ -1130,6 +1141,10 @@ int syslogd_main(int argc UNUSED_PARAM, char **argv)
+ 	if (opts & OPT_loglevel) // -l
+ 		G.logLevel = xatou_range(opt_l, 1, 8);
+ 	//if (opts & OPT_small) // -S
++	if (opts & OPT_adjusttz) { // -Z
++		G.adjustTimezone = 1;
++		tzset();
++	}
+ #if ENABLE_FEATURE_ROTATE_LOGFILE
+ 	if (opts & OPT_filesize) // -s
+ 		G.logFileSize = xatou_range(opt_s, 0, INT_MAX/1024) * 1024;
+-- 
+2.13.2
+
-- 
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