From 9f497e04a0a84af2fc2217dcfb09d92ac34774fe Mon Sep 17 00:00:00 2001
From: Vincent Bernat <vbe@deezer.com>
Date: Wed, 2 Apr 2014 17:54:20 +0200
Subject: [PATCH] hpux: provide a replacement for vsyslog() for HP-UX

---
 configure.ac         |  2 +-
 src/compat/compat.h  |  6 +++++-
 src/compat/vsyslog.c | 15 +++++++++++++++
 3 files changed, 21 insertions(+), 2 deletions(-)
 create mode 100644 src/compat/vsyslog.c

diff --git a/configure.ac b/configure.ac
index 779d79bb..f4f8e9e7 100644
--- a/configure.ac
+++ b/configure.ac
@@ -114,7 +114,7 @@ AC_FUNC_FORK
 AC_SEARCH_LIBS([setproctitle], [util bsd])
 AC_REPLACE_FUNCS([setproctitle])
 AC_CHECK_FUNCS([setproctitle_init])
-AC_REPLACE_FUNCS([strlcpy strnlen strndup fgetln asprintf])
+AC_REPLACE_FUNCS([strlcpy strnlen strndup fgetln asprintf vsyslog])
 AC_CHECK_FUNCS([setresuid setresgid])
 
 case " $LIBS " in
diff --git a/src/compat/compat.h b/src/compat/compat.h
index 983b40b6..e4092346 100644
--- a/src/compat/compat.h
+++ b/src/compat/compat.h
@@ -46,10 +46,14 @@
 #endif
 
 #if !HAVE_ASPRINTF
-int vasprintf(char **str, const char *fmt, va_list ap) __attribute__ ((format (printf, 2, 0)));
+int vasprintf(char **, const char *, va_list) __attribute__ ((format (printf, 2, 0)));
 int asprintf (char **, const char *, ...) __attribute__ ((format (printf, 2, 3)));
 #endif
 
+#if !HAVE_VSYSLOG
+void vsyslog(int, const char *, va_list) __attribute__ ((format (printf, 2, 0)));
+#endif
+
 #if !HAVE_STRLCPY
 size_t	strlcpy(char *, const char *, size_t);
 #endif
diff --git a/src/compat/vsyslog.c b/src/compat/vsyslog.c
new file mode 100644
index 00000000..8c0f8f2d
--- /dev/null
+++ b/src/compat/vsyslog.c
@@ -0,0 +1,15 @@
+/* -*- mode: c; c-file-style: "openbsd" -*- */
+
+#include <stdlib.h>
+#include <syslog.h>
+#include "compat.h"
+
+/* vsyslog() doesn't exist on HP-UX */
+void
+vsyslog(int facility, const char *format, va_list ap) {
+	char *msg = NULL;
+	vasprintf(&msg, format, ap);
+	if (!msg) return;
+	syslog(facility, "%s", msg);
+	free(msg);
+}
-- 
2.39.5