0.3.0: converge relibc to upstream 0.6.0 + Red Bear patches

tests/sys_syslog/syslog.c

@@ -0,0 +1,46 @@
+#include <stdlib.h>
+#include <syslog.h>
+
+int main(void) {
+    // Test that syslog succeeds without explicitly calling openlog
+    syslog(LOG_INFO, "Testing syslog; disregard");
+    closelog();
+
+    // The rest of the tests use LOG_PERROR so we get verifiable output on stderr
+    openlog("relibc_test",
+            LOG_CONS | LOG_PERROR | LOG_NDELAY,
+            LOG_LOCAL2
+    );
+
+    // Basic
+    syslog(LOG_EMERG, "This is a test message with formatting: %d", 5);
+
+    // Only alert should print
+    setlogmask(LOG_MASK(LOG_ALERT));
+    syslog(LOG_ALERT, "Hank Hill");
+    syslog(LOG_EMERG, "Sells propane and propane accessories");
+
+    // Squelch all logs with a priority less than WARNING.
+    setlogmask(LOG_UPTO(LOG_WARNING));
+    // First line should be emitted while the second shouldn't.
+    syslog(LOG_WARNING, "Foo has been bar'd");
+    syslog(LOG_NOTICE, "I am a very spammy log message. Ha!");
+
+    // All of these should print
+    setlogmask(LOG_UPTO(LOG_DEBUG));
+    syslog(LOG_DEBUG, "And now, Eeveelutions");
+    syslog(LOG_DEBUG, "Espeon");
+    syslog(LOG_INFO, "Umbreon");
+    syslog(LOG_NOTICE, "Sylveon");
+    syslog(LOG_WARNING, "Glaceon");
+    syslog(LOG_ERR, "Leafeon");
+    syslog(LOG_CRIT, "Vaporeon");
+    syslog(LOG_ALERT, "Flareon");
+    syslog(LOG_EMERG, "Jolteon");
+    
+    // The log file should automatically open even if closed.
+    closelog();
+    syslog(LOG_INFO, "Bye from relibc's syslog tests!");
+
+    return EXIT_SUCCESS;
+}