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| author | pjd <pjd@FreeBSD.org> | 2011-09-27 06:43:51 +0000 |
|---|---|---|
| committer | pjd <pjd@FreeBSD.org> | 2011-09-27 06:43:51 +0000 |
| commit | e0053a0ea29eec7bce474cead8f81448fc39c005 (patch) | |
| tree | 987387cb4da1abc6af87dc9656e4b085c251ea7d /sbin/hastd | |
| parent | 07fff668ac842664d9d7a0f7e1bde4ffbec2d6d1 (diff) | |
| download | FreeBSD-src-e0053a0ea29eec7bce474cead8f81448fc39c005.zip FreeBSD-src-e0053a0ea29eec7bce474cead8f81448fc39c005.tar.gz | |
Ensure that pjdlog functions don't modify errno.
MFC after: 3 days
Diffstat (limited to 'sbin/hastd')
| -rw-r--r-- | sbin/hastd/pjdlog.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/sbin/hastd/pjdlog.c b/sbin/hastd/pjdlog.c index 16ecf4d..bc4018f 100644 --- a/sbin/hastd/pjdlog.c +++ b/sbin/hastd/pjdlog.c @@ -148,11 +148,14 @@ pjdlog_printf_render_sockaddr(struct __printf_io *io, void pjdlog_init(int mode) { + int saved_errno; assert(pjdlog_initialized == PJDLOG_NEVER_INITIALIZED || pjdlog_initialized == PJDLOG_NOT_INITIALIZED); assert(mode == PJDLOG_MODE_STD || mode == PJDLOG_MODE_SYSLOG); + saved_errno = errno; + if (pjdlog_initialized == PJDLOG_NEVER_INITIALIZED) { __use_xprintf = 1; register_printf_render_std("T"); @@ -171,18 +174,25 @@ pjdlog_init(int mode) bzero(pjdlog_prefix, sizeof(pjdlog_prefix)); pjdlog_initialized = PJDLOG_INITIALIZED; + + errno = saved_errno; } void pjdlog_fini(void) { + int saved_errno; assert(pjdlog_initialized == PJDLOG_INITIALIZED); + saved_errno = errno; + if (pjdlog_mode == PJDLOG_MODE_SYSLOG) closelog(); pjdlog_initialized = PJDLOG_NOT_INITIALIZED; + + errno = saved_errno; } /* @@ -194,6 +204,7 @@ pjdlog_fini(void) void pjdlog_mode_set(int mode) { + int saved_errno; assert(pjdlog_initialized == PJDLOG_INITIALIZED); assert(mode == PJDLOG_MODE_STD || mode == PJDLOG_MODE_SYSLOG); @@ -201,12 +212,16 @@ pjdlog_mode_set(int mode) if (pjdlog_mode == mode) return; + saved_errno = errno; + if (mode == PJDLOG_MODE_SYSLOG) openlog(NULL, LOG_PID | LOG_NDELAY, LOG_DAEMON); else /* if (mode == PJDLOG_MODE_STD) */ closelog(); pjdlog_mode = mode; + + errno = saved_errno; } /* @@ -270,11 +285,16 @@ pjdlog_prefix_set(const char *fmt, ...) void pjdlogv_prefix_set(const char *fmt, va_list ap) { + int saved_errno; assert(pjdlog_initialized == PJDLOG_INITIALIZED); assert(fmt != NULL); + saved_errno = errno; + vsnprintf(pjdlog_prefix, sizeof(pjdlog_prefix), fmt, ap); + + errno = saved_errno; } /* @@ -329,6 +349,7 @@ void pjdlogv_common(int loglevel, int debuglevel, int error, const char *fmt, va_list ap) { + int saved_errno; assert(pjdlog_initialized == PJDLOG_INITIALIZED); assert(loglevel == LOG_EMERG || loglevel == LOG_ALERT || @@ -342,6 +363,8 @@ pjdlogv_common(int loglevel, int debuglevel, int error, const char *fmt, if (loglevel == LOG_DEBUG && debuglevel > pjdlog_debug_level) return; + saved_errno = errno; + switch (pjdlog_mode) { case PJDLOG_MODE_STD: { @@ -398,6 +421,8 @@ pjdlogv_common(int loglevel, int debuglevel, int error, const char *fmt, default: assert(!"Invalid mode."); } + + errno = saved_errno; } /* |
