1 files changed, 53 insertions, 0 deletions
diff --git a/compat/asprintf.c b/compat/asprintf.c
new file mode 100644
index 0000000..fcfb102
--- /dev/null
+++ b/compat/asprintf.c
@@ -0,0 +1,53 @@
+/* compatibility file for systems without asprintf.
+ *
+ * Copyright 2019 P Duveau
+ *
+ * This file is part of rsyslog.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *       http://www.apache.org/licenses/LICENSE-2.0
+ *       -or-
+ *       see COPYING.ASL20 in the source distribution
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include "config.h"
+#ifndef HAVE_ASPRINTF
+
+#include <stdlib.h>
+#include <stdarg.h>
+#include <stdio.h>
+int asprintf(char **strp, const char *fmt, ...)
+{
+	va_list ap;
+	int len;
+
+	va_start(ap, fmt);
+	len = vsnprintf(NULL, 0, fmt, ap);
+	va_end(ap);
+
+	*strp = malloc(len+1);
+	if (!*strp) {
+		return -1;
+	}
+
+	va_start(ap, fmt);
+	vsnprintf(*strp, len+1, fmt, ap);
+	va_end(ap);
+
+	(*strp)[len] = 0;
+	return len;
+}
+#else
+/* XLC needs at least one method in source file even static to compile */
+#ifdef __xlc__
+static void dummy() {}
+#endif
+#endif /* #ifndef HAVE_ASPRINTF */