Add printing to rspamd_fstring_t.

src/libutil/printf.c

@@ -219,6 +219,18 @@ rspamd_printf_append_gstring (const gchar *buf, glong buflen, gpointer ud)
 	return buflen;
 }
 
+static glong
+rspamd_printf_append_fstring (const gchar *buf, glong buflen, gpointer ud)
+{
+	rspamd_fstring_t **dst = ud;
+
+	if (buflen > 0) {
+		*dst = rspamd_fstring_append (*dst, buf, buflen);
+	}
+
+	return buflen;
+}
+
 glong
 rspamd_fprintf (FILE *f, const gchar *fmt, ...)
 {
@@ -307,6 +319,25 @@ rspamd_vprintf_gstring (GString *s, const gchar *fmt, va_list args)
 	return rspamd_vprintf_common (rspamd_printf_append_gstring, s, fmt, args);
 }
 
+glong
+rspamd_printf_fstring (rspamd_fstring_t **s, const gchar *fmt, ...)
+{
+	va_list args;
+	glong r;
+
+	va_start (args, fmt);
+	r = rspamd_vprintf_fstring (s, fmt, args);
+	va_end (args);
+
+	return r;
+}
+
+glong
+rspamd_vprintf_fstring (rspamd_fstring_t **s, const gchar *fmt, va_list args)
+{
+	return rspamd_vprintf_common (rspamd_printf_append_fstring, s, fmt, args);
+}
+
 #define RSPAMD_PRINTF_APPEND(buf, len)                                         \
 	do {                                                                       \
 		RSPAMD_PRINTF_APPEND_BUF(buf, len);                                    \

src/libutil/printf.h

@@ -26,6 +26,7 @@
 #define PRINTF_H_
 
 #include "config.h"
+#include "fstring.h"
 
 /*
  * supported formats:
@@ -78,6 +79,9 @@ gchar * rspamd_vsnprintf (gchar *buf, glong max, const gchar *fmt,
 glong rspamd_printf_gstring (GString *s, const gchar *fmt, ...);
 glong rspamd_vprintf_gstring (GString *s, const gchar *fmt, va_list args);
 
+glong rspamd_printf_fstring (rspamd_fstring_t **s, const gchar *fmt, ...);
+glong rspamd_vprintf_fstring (rspamd_fstring_t **s, const gchar *fmt, va_list args);
+
 glong rspamd_vprintf_common (rspamd_printf_append_func func,
 	gpointer apd,
 	const gchar *fmt,