From 8fccae2c95506270f74ee8429c273b0924e89c83 Mon Sep 17 00:00:00 2001 From: Andy Spencer Date: Thu, 1 Oct 2009 15:44:27 -0700 Subject: [PATCH] sscanf(): fix %*s%n When using %*s, sscanf should honor conversion specifiers immediately following the %*s. For example, the following code should find the position of the end of the string "hello". int end; char buf[] = "hello world"; sscanf(buf, "%*s%n", &end); printf("%d\n", end); Ideally, sscanf would advance the fmt and str pointers the same as it would without the *, but the code for that is rather complicated and is not included in the patch. Signed-off-by: Andy Spencer Acked-by: WANG Cong Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- lib/vsprintf.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/lib/vsprintf.c b/lib/vsprintf.c index b91839e9e892..33bed5e67a21 100644 --- a/lib/vsprintf.c +++ b/lib/vsprintf.c @@ -1771,7 +1771,7 @@ int vsscanf(const char * buf, const char * fmt, va_list args) * advance both strings to next white space */ if (*fmt == '*') { - while (!isspace(*fmt) && *fmt) + while (!isspace(*fmt) && *fmt != '%' && *fmt) fmt++; while (!isspace(*str) && *str) str++; -- 2.34.1