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-rw-r--r--lib/io/printf.c30
1 files changed, 30 insertions, 0 deletions
diff --git a/lib/io/printf.c b/lib/io/printf.c
new file mode 100644
index 0000000..3850487
--- /dev/null
+++ b/lib/io/printf.c
@@ -0,0 +1,30 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/*
+ * printf.c
+ *
+ * Copyright (C) 2019 David Oberhollenzer <goliath@infraroot.at>
+ */
+#include "internal.h"
+
+int ostream_printf(ostream_t *strm, const char *fmt, ...)
+{
+ char *temp = NULL;
+ va_list ap;
+ int ret;
+
+ va_start(ap, fmt);
+
+ ret = vasprintf(&temp, fmt, ap);
+ if (ret < 0)
+ perror(strm->get_filename(strm));
+ va_end(ap);
+
+ if (ret < 0)
+ return -1;
+
+ if (strm->append(strm, temp, ret))
+ ret = -1;
+
+ free(temp);
+ return ret;
+}