diff options
| author | James Byrne <james.byrne@origamienergy.com> | 2019-04-12 17:01:51 +0000 |
|---|---|---|
| committer | Denys Vlasenko <vda.linux@googlemail.com> | 2019-04-30 10:51:27 +0200 |
| commit | 253c4e787a799a3e1f92957ed791b5222f8d2f64 (patch) | |
| tree | 36204e05aaaf2cdcbd89eaadeff0193f99b063bf /libbb | |
| parent | f3a064f4956e113978e74486300dcd1e3e044efa (diff) | |
| download | busybox-253c4e787a799a3e1f92957ed791b5222f8d2f64.tar.gz | |
Optionally re-introduce bb_info_msg()
Between Busybox 1.24.2 and 1.25.0 the bb_info_msg() function was
eliminated and calls to it changed to be bb_error_msg(). The downside of
this is that daemons now log all messages to syslog at the LOG_ERR level
which makes it hard to filter errors from informational messages.
This change optionally re-introduces bb_info_msg(), controlled by a new
option FEATURE_SYSLOG_INFO, restores all the calls to bb_info_msg() that
were removed (only in applets that set logmode to LOGMODE_SYSLOG or
LOGMODE_BOTH), and also changes informational messages in ifplugd and
ntpd.
The code size change of this is as follows (using 'defconfig' on x86_64
with gcc 7.3.0-27ubuntu1~18.04)
function old new delta
bb_info_msg - 182 +182
bb_vinfo_msg - 27 +27
static.log7 194 198 +4
log8 190 191 +1
log5 190 191 +1
crondlog 45 - -45
------------------------------------------------------------------------------
(add/remove: 2/1 grow/shrink: 3/0 up/down: 215/-45) Total: 170 bytes
If you don't care about everything being logged at LOG_ERR level
then when FEATURE_SYSLOG_INFO is disabled Busybox actually gets smaller:
function old new delta
static.log7 194 200 +6
log8 190 193 +3
log5 190 193 +3
syslog_level 1 - -1
bb_verror_msg 583 581 -2
crondlog 45 - -45
------------------------------------------------------------------------------
(add/remove: 0/2 grow/shrink: 3/1 up/down: 12/-48) Total: -36 bytes
Signed-off-by: James Byrne <james.byrne@origamienergy.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'libbb')
| -rw-r--r-- | libbb/verror_msg.c | 22 |
1 files changed, 20 insertions, 2 deletions
diff --git a/libbb/verror_msg.c b/libbb/verror_msg.c index 22c30357b..6d3459905 100644 --- a/libbb/verror_msg.c +++ b/libbb/verror_msg.c @@ -12,7 +12,7 @@ #endif #if ENABLE_FEATURE_SYSLOG -smallint syslog_level = LOG_ERR; +static smallint syslog_level = LOG_ERR; #endif smallint logmode = LOGMODE_STDIO; const char *msg_eol = "\n"; @@ -154,7 +154,7 @@ void FAST_FUNC bb_verror_msg(const char *s, va_list p, const char* strerr) } # if ENABLE_FEATURE_SYSLOG if (logmode & LOGMODE_SYSLOG) { - syslog(LOG_ERR, "%s", msgc); + syslog(syslog_level, "%s", msgc); } # endif free(msgc); @@ -180,3 +180,21 @@ void FAST_FUNC bb_error_msg(const char *s, ...) bb_verror_msg(s, p, NULL); va_end(p); } + +#if ENABLE_FEATURE_SYSLOG_INFO +void FAST_FUNC bb_vinfo_msg(const char *s, va_list p) +{ + syslog_level = LOG_INFO; + bb_verror_msg(s, p, NULL); + syslog_level = LOG_ERR; +} + +void FAST_FUNC bb_info_msg(const char *s, ...) +{ + va_list p; + + va_start(p, s); + bb_vinfo_msg(s, p); + va_end(p); +} +#endif |