busybox/uClibc
1
0
Fork 0
mirror of https://git.busybox.net/uClibc synced 2025-05-08 23:02:28 +08:00
Code Issues Packages Projects Releases Wiki Activity

libc: add missing lock initialization in vswprintf

Browse Source 
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 <mrayskiy@broadcom.com>
Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>
This commit is contained in:
Maksim Rayskiy 2011-06-16 18:14:01 -07:00 committed by Carmelo Amoroso
parent c61993f7e0
commit 18bf00f312
1 changed files with 5 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
libc/stdio/vswprintf.c
View File

@ -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))) {