From 8d33a8a53071865329956fd3a90c196e22338d02 Mon Sep 17 00:00:00 2001
From: Erik de Castro Lopo <erikd@mega-nerd.com>
Date: Tue, 30 Jun 2009 22:01:03 +1000
Subject: [PATCH] src/common.(c|h) : Add function append_snprintf().

---
 src/common.c | 15 +++++++++++++++
 src/common.h |  2 ++
 2 files changed, 17 insertions(+)

diff --git a/src/common.c b/src/common.c
index c444694a..c34c5553 100644
--- a/src/common.c
+++ b/src/common.c
@@ -1314,6 +1314,21 @@ psf_rand_int32 (void)
 	return value ;
 } /* psf_rand_int32 */
 
+void
+append_snprintf (char * dest, size_t maxlen, const char * fmt, ...)
+{	size_t len = strlen (dest) ;
+
+	if (len < maxlen)
+	{	va_list ap ;
+
+		va_start (ap, fmt) ;
+		vsnprintf (dest + len, maxlen - len, fmt, ap) ;
+		va_end (ap) ;
+		} ;
+
+	return ;
+} /* append_snprintf */
+
 /*==============================================================================
 */
 
diff --git a/src/common.h b/src/common.h
index f41f96ae..94c5d45a 100644
--- a/src/common.h
+++ b/src/common.h
@@ -617,6 +617,8 @@ void	psf_log_SF_INFO 	(SF_PRIVATE *psf) ;
 
 int32_t	psf_rand_int32 (void) ;
 
+void append_snprintf (char * dest, size_t maxlen, const char * fmt, ...) ;
+
 /* Functions used when writing file headers. */
 
 int		psf_binheader_writef	(SF_PRIVATE *psf, const char *format, ...) ;