libc: add stubs for syslog

libc/syslog.c

@@ -0,0 +1,53 @@
+/* Copyright (C) 2024 John Törnblom
+
+This program is free software; you can redistribute it and/or modify it
+under the terms of the GNU General Public License as published by the
+Free Software Foundation; either version 3, or (at your option) any
+later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; see the file COPYING. If not, see
+<http://www.gnu.org/licenses/>.  */
+
+#include <stdarg.h>
+#include <syslog.h>
+
+
+void
+vsyslog(int pri, const char *fmt, va_list ap) {
+#warning "vsyslog() not implemented"
+}
+
+
+void
+syslog(int pri, const char *fmt, ...) {
+  va_list ap;
+
+  va_start(ap, fmt);
+  vsyslog(pri, fmt, ap);
+  va_end(ap);
+}
+
+
+void
+openlog(const char *ident, int logstat, int logfac) {
+#warning "openlog() not implemented"
+}
+
+
+void
+closelog(void) {
+#warning "closelog() not implemented"
+}
+
+
+int
+setlogmask(int pmask) {
+#warning "setlogmask() not implemented"
+  return -1;
+}