mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-24 14:00:30 +00:00
82 lines
2.5 KiB
C
82 lines
2.5 KiB
C
/* Copyright (C) 1995-2024 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, see
|
|
<https://www.gnu.org/licenses/>.
|
|
|
|
As a special exception, if you link the code in this file with
|
|
files compiled with a GNU compiler to produce an executable,
|
|
that does not cause the resulting executable to be covered by
|
|
the GNU Lesser General Public License. This exception does not
|
|
however invalidate any other reasons why the executable file
|
|
might be covered by the GNU Lesser General Public License.
|
|
This exception applies to code released by its copyright holders
|
|
in files containing the exception. */
|
|
|
|
#include <array_length.h>
|
|
#include <math_ldbl_opt.h>
|
|
#include <printf.h>
|
|
#include <stdio_ext.h>
|
|
#include <unistd.h>
|
|
#include <printf_buffer.h>
|
|
|
|
struct __printf_buffer_dprintf
|
|
{
|
|
struct __printf_buffer base;
|
|
int fd;
|
|
|
|
char buf[PRINTF_BUFFER_SIZE_DPRINTF];
|
|
};
|
|
|
|
void
|
|
__printf_buffer_flush_dprintf (struct __printf_buffer_dprintf *buf)
|
|
{
|
|
char *p = buf->buf;
|
|
char *end = buf->base.write_ptr;
|
|
while (p < end)
|
|
{
|
|
ssize_t ret = TEMP_FAILURE_RETRY (write (buf->fd, p, end - p));
|
|
if (ret < 0)
|
|
{
|
|
__printf_buffer_mark_failed (&buf->base);
|
|
return;
|
|
}
|
|
p += ret;
|
|
}
|
|
buf->base.written += buf->base.write_ptr - buf->base.write_base;
|
|
buf->base.write_ptr = buf->buf;
|
|
}
|
|
|
|
int
|
|
__vdprintf_internal (int d, const char *format, va_list arg,
|
|
unsigned int mode_flags)
|
|
{
|
|
struct __printf_buffer_dprintf buf;
|
|
__printf_buffer_init (&buf.base, buf.buf, array_length (buf.buf),
|
|
__printf_buffer_mode_dprintf);
|
|
buf.fd = d;
|
|
__printf_buffer (&buf.base, format, arg, mode_flags);
|
|
if (__printf_buffer_has_failed (&buf.base))
|
|
return -1;
|
|
__printf_buffer_flush_dprintf (&buf);
|
|
return __printf_buffer_done (&buf.base);
|
|
}
|
|
|
|
int
|
|
__vdprintf (int d, const char *format, va_list arg)
|
|
{
|
|
return __vdprintf_internal (d, format, arg, 0);
|
|
}
|
|
ldbl_weak_alias (__vdprintf, vdprintf)
|