syslog support; bitwise logior and logand functions become variadic.

* Makefile: Use -iquote to restrict our #include search paths from being
processed for #include <...>.  Add syslog.o to OBJS-y if have_syslog is y.

* configure (have_syslog): New variable, set by detecting syslog API.

* eval.c (eval_init): logand and logior registrations changed to
go to variadic versions. New syslog variables and functions registered.

* lib.c (logandv, logiorv): New functions.

* lib.h (logandv, logiorv): Declared.

* txr.c (main): Call syslog_init.

* syslog.c: New file.

* syslog.h: New file.

1 files changed, 101 insertions, 0 deletions

diff --git a/syslog.c b/syslog.c
new file mode 100644
index 00000000..6ab5826c
--- /dev/null
+++ b/syslog.c
@@ -0,0 +1,101 @@
+/* Copyright 2012
+ * Kaz Kylheku <kaz@kylheku.com>
+ * Vancouver, Canada
+ * All rights reserved.
+ *
+ * BSD License:
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ *   1. Redistributions of source code must retain the above copyright
+ *      notice, this list of conditions and the following disclaimer.
+ *   2. Redistributions in binary form must reproduce the above copyright
+ *      notice, this list of conditions and the following disclaimer in
+ *      the documentation and/or other materials provided with the
+ *      distribution.
+ *   3. The name of the author may not be used to endorse or promote
+ *      products derived from this software without specific prior
+ *      written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <assert.h>
+#include <setjmp.h>
+#include <wchar.h>
+#include <dirent.h>
+#include <syslog.h>
+#include "config.h"
+#include "lib.h"
+#include "stream.h"
+#include "hash.h"
+#include "gc.h"
+#include "unwind.h"
+#include "utf8.h"
+#include "syslog.h"
+
+val log_pid_v, log_cons_v, log_ndelay_v;
+val log_odelay_v, log_nowait_v, log_perror_v;
+
+val log_user_v, log_daemon_v, log_auth_v;
+
+val log_emerg_v, log_alert_v, log_crit_v, log_err_v;
+val log_warning_v, log_notice_v, log_info_v, log_debug_v;
+
+void syslog_init(void)
+{
+  log_pid_v = num(LOG_PID);
+  log_cons_v = num(LOG_CONS);
+  log_ndelay_v = num(LOG_NDELAY);
+
+  log_odelay_v = num(LOG_ODELAY);
+  log_nowait_v = num(LOG_NOWAIT);
+  log_perror_v = num(LOG_PERROR);
+
+  log_user_v = num(LOG_USER);
+  log_daemon_v = num(LOG_DAEMON);
+  log_auth_v = num(LOG_AUTH);
+
+  log_emerg_v = num(LOG_EMERG);
+  log_alert_v = num(LOG_ALERT);
+  log_crit_v = num(LOG_CRIT);
+  log_err_v = num(LOG_ERR);
+  log_warning_v = num(LOG_WARNING);
+  log_notice_v = num(LOG_NOTICE);
+  log_info_v = num(LOG_INFO);
+  log_debug_v = num(LOG_DEBUG);
+}
+
+val openlog_wrap(val wident, val optmask, val facility)
+{
+  static char *ident;
+  char *old_ident = ident;
+ 
+  ident = utf8_dup_to(c_str(wident));
+  openlog(ident,
+          if3(optmask, c_num(optmask), 0),
+          if3(facility, c_num(facility), LOG_USER));
+  free(old_ident);
+
+  return nil;
+}
+
+val setlogmask_wrap(val mask)
+{
+  return num(setlogmask(c_num(mask)));
+}
+
+val syslog_wrap(val prio, val fmt, val args)
+{
+  val text = formatv(nil, fmt, args);
+  char *u8text = utf8_dup_to(c_str(text));
+  syslog(c_num(prio), "%s", u8text);
+  return nil;
+}