Add vsnrprintf() which is just like vsnprintf() but takes a "radix"

argument for the kernel-special %r format.

2 files changed, 18 insertions, 0 deletions

diff --git a/sys/kern/subr_prf.c b/sys/kern/subr_prf.c
index 56f0c2e..abe059bf7 100644
--- a/sys/kern/subr_prf.c
+++ b/sys/kern/subr_prf.c
@@ -416,6 +416,23 @@ vsnprintf(char *str, size_t size, const char *format, va_list ap)
 	return (retval);
 }
 
+/*
+ * Kernel version which takes radix argument vsnprintf(3).
+ */
+int
+vsnrprintf(char *str, size_t size, int radix, const char *format, va_list ap)
+{
+	struct snprintf_arg info;
+	int retval;
+
+	info.str = str;
+	info.remain = size;
+	retval = kvprintf(format, snprintf_func, &info, radix, ap);
+	if (info.remain >= 1)
+		*info.str++ = '\0';
+	return (retval);
+}
+
 static void
 snprintf_func(int ch, void *arg)
 {
diff --git a/sys/sys/systm.h b/sys/sys/systm.h
index 363f713..5699f43 100644
--- a/sys/sys/systm.h
+++ b/sys/sys/systm.h
@@ -157,6 +157,7 @@ int	sprintf(char *buf, const char *, ...) __printflike(2, 3);
 int	uprintf(const char *, ...) __printflike(1, 2);
 int	vprintf(const char *, __va_list) __printflike(1, 0);
 int	vsnprintf(char *, size_t, const char *, __va_list) __printflike(3, 0);
+int	vsnrprintf(char *, size_t, int, const char *, __va_list) __printflike(4, 0); 
 int	vsprintf(char *buf, const char *, __va_list) __printflike(2, 0);
 int	ttyprintf(struct tty *, const char *, ...) __printflike(2, 3);
 int	sscanf(const char *, char const *, ...);