* libc/stdio/vprintf.c (vprintf): fix signature to use _DEFUN
* libc/stdio/vprintf.c (_vprintf_r): new function
* libc/stdio/vsnprintf.c (vsnprintf): fix signature to use _DEFUN
* libc/stdio/vsnprintf.c (_vsnprintf_r): fix signature to use
_DEFUN, and call _vfprintf_r, not vfprintf.
* libc/stdio/vsprintf.c (vsprintf.c): fix signature to use _DEFUN
* libc/stdio/vsprintf.c (_vsprintf_r): fix signature to use
_DEFUN, and call _vfprintf_r, not vfprintf.
* libc/stdio/snprintf.c (snprintf, _snprintf_r): Fixed code
so size of 0 results in nothing being written to string.
Also fixed code so that when size is non-zero, there is only
a maximum of size - 1 characters written to the array and
a nul terminator is appended at the end.
* libc/stdio/vsnprintf.c (vsnprintf, _vsnprintf_r): Ditto.
Jeff Johnston
Christopher Faylor