X-Git-Url: https://mattmccutchen.net/rsync/rsync.git/blobdiff_plain/b39f79296a4cea240c659cb7d264035198aa6d44..6694ead8b8bc8ce69fbe98fd68659eaff4aa8bfd:/util.c

diff --git a/util.c b/util.c
index bc01afd0..27fd44fe 100644
--- a/util.c
+++ b/util.c
@@ -840,6 +840,25 @@ size_t stringjoin(char *dest, size_t destsize, ...)
 	return ret;
 }
 
+/* Append formatted text at *dest_ptr up to a maximum of sz (like snprintf).
+ * On success, advance *dest_ptr and return True; on overflow, return False. */
+BOOL snappendf(char **dest_ptr, size_t sz, const char *format, ...)
+{
+	va_list ap;
+	size_t len;
+	
+	va_start(ap, format);
+	len = vsnprintf(*dest_ptr, sz, format, ap);
+	va_end(ap);
+
+	if (len >= sz)
+		return False;
+	else {
+		*dest_ptr += len;
+		return True;
+	}
+}
+
 int count_dir_elements(const char *p)
 {
 	int cnt = 0, new_component = 1;