diff options
Diffstat (limited to 'system/busybox/0011-sysklogd-add-Z-option-to-adjust-message-timezones.patch')
| -rw-r--r-- | system/busybox/0011-sysklogd-add-Z-option-to-adjust-message-timezones.patch | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/system/busybox/0011-sysklogd-add-Z-option-to-adjust-message-timezones.patch b/system/busybox/0011-sysklogd-add-Z-option-to-adjust-message-timezones.patch new file mode 100644 index 000000000..b4ba240c4 --- /dev/null +++ b/system/busybox/0011-sysklogd-add-Z-option-to-adjust-message-timezones.patch @@ -0,0 +1,104 @@ +From 889a08dc0ae0d6b76692e6ed811f431c5b5db53c Mon Sep 17 00:00:00 2001 +From: Shiz <hi@shiz.me> +Date: Mon, 8 May 2017 23:09:13 +0200 +Subject: [PATCH 11/16] 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 4265f4f90..eca955891 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'; +@@ -1129,6 +1140,10 @@ 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; +-- +2.16.2 + |