1 files changed, 87 insertions, 0 deletions
diff --git a/src/util/msg_vstream.c b/src/util/msg_vstream.c
new file mode 100644
index 0000000..b6e24e6
--- /dev/null
+++ b/src/util/msg_vstream.c
@@ -0,0 +1,87 @@
+/*++
+/* NAME
+/*	msg_vstream 3
+/* SUMMARY
+/*	report diagnostics to VSTREAM
+/* SYNOPSIS
+/*	#include <msg_vstream.h>
+/*
+/*	void	msg_vstream_init(progname, stream)
+/*	const char *progname;
+/*	VSTREAM	*stream;
+/* DESCRIPTION
+/*	This module implements support to report msg(3) diagnostics
+/*	to a VSTREAM.
+/*
+/*	msg_vstream_init() sets the program name that appears in each output
+/*	record, and directs diagnostics (see msg(3)) to the specified
+/*	VSTREAM. The \fIprogname\fR argument is not copied.
+/* SEE ALSO
+/*	msg(3)
+/* BUGS
+/*	No guarantee that long records are written atomically.
+/*	Only the last msg_vstream_init() call takes effect.
+/* LICENSE
+/* .ad
+/* .fi
+/*	The Secure Mailer license must be distributed with this software.
+/* AUTHOR(S)
+/*	Wietse Venema
+/*	IBM T.J. Watson Research
+/*	P.O. Box 704
+/*	Yorktown Heights, NY 10598, USA
+/*--*/
+
+/* System libraries. */
+
+#include <sys_defs.h>
+#include <errno.h>
+#include <stdlib.h>			/* 44BSD stdarg.h uses abort() */
+#include <stdarg.h>
+
+/* Utility library. */
+
+#include "vstream.h"
+#include "msg.h"
+#include "msg_output.h"
+#include "msg_vstream.h"
+
+ /*
+  * Private state.
+  */
+static const char *msg_tag;
+static VSTREAM *msg_stream;
+
+/* msg_vstream_print - log diagnostic to VSTREAM */
+
+static void msg_vstream_print(int level, const char *text)
+{
+    static const char *level_text[] = {
+	"info", "warning", "error", "fatal", "panic",
+    };
+
+    if (level < 0 || level >= (int) (sizeof(level_text) / sizeof(level_text[0])))
+	msg_panic("invalid severity level: %d", level);
+    if (level == MSG_INFO) {
+	vstream_fprintf(msg_stream, "%s: %s\n",
+			msg_tag, text);
+    } else {
+	vstream_fprintf(msg_stream, "%s: %s: %s\n",
+			msg_tag, level_text[level], text);
+    }
+    vstream_fflush(msg_stream);
+}
+
+/* msg_vstream_init - initialize */
+
+void    msg_vstream_init(const char *name, VSTREAM *vp)
+{
+    static int first_call = 1;
+
+    msg_tag = name;
+    msg_stream = vp;
+    if (first_call) {
+	first_call = 0;
+	msg_output(msg_vstream_print);
+    }
+}