optimize signal mask ops. comment out "impossible" errors

    text           data     bss     dec     hex filename
-   1179             13       2    1194     4aa libc/misc/syslog/syslog.o
+   1165             13       2    1180     49c libc/misc/syslog/syslog.o
-    435              4       0     439     1b7 libc/pwd_grp/lckpwdf.o
+    393              4       0     397     18d libc/pwd_grp/lckpwdf.o
-     38              0       0      38      26 libc/signal/sigandset.o
+     32              0       0      32      20 libc/signal/sigandset.o
-     63              0       0      63      3f libc/signal/sigblock.o
+     56              0       0      56      38 libc/signal/sigblock.o
-     22              0       0      22      16 libc/signal/sigempty.o
+     20              0       0      20      14 libc/signal/sigempty.o
-     25              0       0      25      19 libc/signal/sigfillset.o
+     20              0       0      20      14 libc/signal/sigfillset.o
-     34              0       0      34      22 libc/signal/sigisempty.o
+     16              0       0      16      10 libc/signal/sigisempty.o
-     38              0       0      38      26 libc/signal/sigorset.o
+     32              0       0      32      20 libc/signal/sigorset.o
-    119              0       0     119      77 libc/signal/sigpause.o
+    113              0       0     113      71 libc/signal/sigpause.o
-    215              0       0     215      d7 libc/signal/sigset.o
+    211              0       0     211      d3 libc/signal/sigset.o
-     63              0       0      63      3f libc/signal/sigsetmask.o
+     56              0       0      56      38 libc/signal/sigsetmask.o
-    194              0       1     195      c3 libc/stdlib/abort.o
+    183              0       1     184      b8 libc/stdlib/abort.o
-    323              0       0     323     143 libc/unistd/sleep.o
+    309              0       0     309     135 libc/unistd/sleep.o

1 files changed, 3 insertions, 4 deletions

diff --git a/libc/misc/syslog/syslog.c b/libc/misc/syslog/syslog.c
index ccc71ddec..32fcd1f2b 100644
--- a/libc/misc/syslog/syslog.c
+++ b/libc/misc/syslog/syslog.c
@@ -207,11 +207,11 @@ vsyslog(int pri, const char *fmt, va_list ap)
 
 	memset(&action, 0, sizeof(action));
 	action.sa_handler = closelog_intern;
-	sigemptyset(&action.sa_mask); /* TODO: memset already zeroed it out! */
+	/* __sigemptyset(&action.sa_mask); - memset already did it */
 	/* Only two errors are possible for sigaction:
 	 * EFAULT (bad address of &oldaction) and EINVAL (invalid signo)
 	 * none of which can happen here. */
-	/*int sigpipe =*/ sigaction(SIGPIPE, &action, &oldaction);
+	sigaction(SIGPIPE, &action, &oldaction);
 
 	saved_errno = errno;
 
@@ -317,8 +317,7 @@ vsyslog(int pri, const char *fmt, va_list ap)
 
 getout:
 	__UCLIBC_MUTEX_UNLOCK(mylock);
-	/*if (sigpipe == 0)*/
-		sigaction(SIGPIPE, &oldaction, (struct sigaction *) NULL);
+	sigaction(SIGPIPE, &oldaction, NULL);
 }
 libc_hidden_def(vsyslog)