diff options
Diffstat (limited to 'libc/stdio/vsnprintf.c')
| -rw-r--r-- | libc/stdio/vsnprintf.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/libc/stdio/vsnprintf.c b/libc/stdio/vsnprintf.c index b54d54d20..e5a14d51a 100644 --- a/libc/stdio/vsnprintf.c +++ b/libc/stdio/vsnprintf.c @@ -19,8 +19,7 @@ libc_hidden_proto(vfprintf) #endif /* __UCLIBC_MJN3_ONLY__ */ #ifdef __STDIO_BUFFERS - -/* NB: __USE_OLD_VFPRINTF__ is not defined in this case */ +/* NB: we can still have __USE_OLD_VFPRINTF__ defined in this case! */ int vsnprintf(char *__restrict buf, size_t size, const char * __restrict format, va_list arg) @@ -47,6 +46,10 @@ int vsnprintf(char *__restrict buf, size_t size, __INIT_MBSTATE(&(f.__state)); #endif /* __STDIO_MBSTATE */ +#if defined(__USE_OLD_VFPRINTF__) && defined(__UCLIBC_HAS_THREADS__) + f.__user_locking = 1; /* Set user locking. */ + __stdio_init_mutex(&f.__lock); +#endif f.__nextopen = NULL; if (size > SIZE_MAX - (size_t) buf) { @@ -62,7 +65,11 @@ int vsnprintf(char *__restrict buf, size_t size, __STDIO_STREAM_DISABLE_GETC(&f); __STDIO_STREAM_ENABLE_PUTC(&f); +#ifdef __USE_OLD_VFPRINTF__ + rv = vfprintf(&f, format, arg); +#else rv = _vfprintf_internal(&f, format, arg); +#endif if (size) { if (f.__bufpos == f.__bufend) { --f.__bufpos; |