From 18bf00f3123707f9d1d7a2876121dea1c2c39a89 Mon Sep 17 00:00:00 2001 From: Maksim Rayskiy Date: Thu, 16 Jun 2011 18:14:01 -0700 Subject: libc: add missing lock initialization in vswprintf Unlike vsnprintf, vswprintf does not properly initialize locking elements of FILE structure, which in some unfortunate cases can result in lockups in _vfwprintf_internal. Interesting, the initialization code was removed in 2a915734a32c5aec9a6a76c13bcb074d30e64171 at the same time as it was added to vsnprintf. Signed-off-by: Maksim Rayskiy Signed-off-by: Carmelo Amoroso --- libc/stdio/vswprintf.c | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'libc') diff --git a/libc/stdio/vswprintf.c b/libc/stdio/vswprintf.c index e509216e9..219524830 100644 --- a/libc/stdio/vswprintf.c +++ b/libc/stdio/vswprintf.c @@ -39,6 +39,11 @@ int vswprintf(wchar_t *__restrict buf, size_t size, __INIT_MBSTATE(&(f.__state)); #endif /* __STDIO_MBSTATE */ +#ifdef __UCLIBC_HAS_THREADS__ + f.__user_locking = 1; /* Set user locking. */ + STDIO_INIT_MUTEX(f.__lock); +#endif /* __UCLIBC_HAS_THREADS__ */ + f.__nextopen = NULL; if (size > ((SIZE_MAX - (size_t) buf)/sizeof(wchar_t))) { -- cgit v1.2.3