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Diffstat (limited to 'libc/misc/syslog')
-rw-r--r--libc/misc/syslog/syslog.c42
1 files changed, 27 insertions, 15 deletions
diff --git a/libc/misc/syslog/syslog.c b/libc/misc/syslog/syslog.c
index 1ab470700..72afabb83 100644
--- a/libc/misc/syslog/syslog.c
+++ b/libc/misc/syslog/syslog.c
@@ -122,23 +122,15 @@ closelog_intern(int sig)
}
static void
-openlog_intern(const char *ident, int logstat, int logfac)
+openlog_intern(void)
{
int fd;
int logType = SOCK_DGRAM;
- if (ident != NULL)
- LogTag = ident;
- LogStat = logstat;
- /* (we were checking also for logfac != 0, but it breaks
- * openlog(xx, LOG_KERN) since LOG_KERN == 0) */
- if ((logfac & ~LOG_FACMASK) == 0) /* if we don't have invalid bits */
- LogFacility = (unsigned)logfac >> 3;
-
fd = LogFile;
if (fd == -1) {
retry:
- if (logstat & LOG_NDELAY) {
+ if (1) { /* if statement left in to make .diff cleaner */
LogFile = fd = socket(AF_UNIX, logType, 0);
if (fd == -1) {
return;
@@ -172,7 +164,18 @@ void
openlog(const char *ident, int logstat, int logfac)
{
__UCLIBC_MUTEX_LOCK(mylock);
- openlog_intern(ident, logstat, logfac);
+
+ if (ident != NULL)
+ LogTag = ident;
+ LogStat = logstat;
+ /* (we were checking also for logfac != 0, but it breaks
+ * openlog(xx, LOG_KERN) since LOG_KERN == 0) */
+ if ((logfac & ~LOG_FACMASK) == 0) /* if we don't have invalid bits */
+ LogFacility = (unsigned)logfac >> 3;
+
+ if (logstat & LOG_NDELAY)
+ openlog_intern();
+
__UCLIBC_MUTEX_UNLOCK(mylock);
}
@@ -206,7 +209,7 @@ __vsyslog(int pri, const char *fmt, va_list ap)
if ((LogMask & LOG_MASK(LOG_PRI(pri))) == 0)
goto getout;
if (LogFile < 0 || !connected)
- openlog_intern(NULL, LogStat | LOG_NDELAY, (int)LogFacility << 3);
+ openlog_intern();
/* Set default facility if none specified. */
if ((pri & LOG_FACMASK) == 0)
@@ -266,14 +269,23 @@ __vsyslog(int pri, const char *fmt, va_list ap)
/* Output the message to the local logger using NUL as a message delimiter. */
p = tbuf;
*last_chr = '\0';
+ retry:
if (LogFile >= 0) {
do {
/* can't just use write, it can result in SIGPIPE */
rc = send(LogFile, p, last_chr + 1 - p, MSG_NOSIGNAL);
if (rc < 0) {
- /* I don't think looping forever on EAGAIN is a good idea.
- * Imagine that syslogd is SIGSTOPed... */
- if (/* (errno != EAGAIN) && */ (errno != EINTR)) {
+ switch (errno) {
+ case EINTR:
+ break;
+ case ECONNRESET:
+ /* syslogd restarted, reopen log */
+ closelog_intern(1);
+ openlog_intern();
+ goto retry;
+ case EAGAIN:
+ /* syslogd stalled, noting we can do */
+ default:
closelog_intern(1); /* 1: do not reset LogXXX globals to default */
goto write_err;
}