stdio-common/printf_buffer_flush.c

   1 /* Flush a struct __printf_buffer.  Multibyte version.
   2    Copyright (C) 2022-2023 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <https://www.gnu.org/licenses/>.  */
  18
  19 #include <errno.h>
  20 #include <printf_buffer.h>
  21
  22 #include "printf_buffer-char.h"
  23 #include "Xprintf_buffer_flush.c"
  24
  25 /* The __printf_buffer_flush_* functions are defined together with
  26    functions that are pulled in by strong references.  */
  27 #ifndef SHARED
  28 # pragma weak __printf_buffer_flush_snprintf
  29 # pragma weak __printf_buffer_flush_to_file
  30 # pragma weak __printf_buffer_flush_asprintf
  31 # pragma weak __printf_buffer_flush_dprintf
  32 # pragma weak __printf_buffer_flush_fp
  33 # pragma weak __printf_buffer_flush_fp_to_wide
  34 # pragma weak __printf_buffer_flush_fphex_to_wide
  35 # pragma weak __printf_buffer_flush_obstack
  36 #endif /* !SHARED */
  37
  38 static void
  39 __printf_buffer_do_flush (struct __printf_buffer *buf)
  40 {
  41   switch (buf->mode)
  42     {
  43     case __printf_buffer_mode_failed:
  44     case __printf_buffer_mode_sprintf:
  45       return;
  46     case __printf_buffer_mode_snprintf:
  47       __printf_buffer_flush_snprintf ((struct __printf_buffer_snprintf *) buf);
  48       return;
  49     case __printf_buffer_mode_sprintf_chk:
  50       __chk_fail ();
  51       break;
  52     case __printf_buffer_mode_to_file:
  53       __printf_buffer_flush_to_file ((struct __printf_buffer_to_file *) buf);
  54       return;
  55     case __printf_buffer_mode_asprintf:
  56       __printf_buffer_flush_asprintf ((struct __printf_buffer_asprintf *) buf);
  57       return;
  58     case __printf_buffer_mode_dprintf:
  59       __printf_buffer_flush_dprintf ((struct __printf_buffer_dprintf *) buf);
  60       return;
  61     case __printf_buffer_mode_strfmon:
  62       __set_errno (E2BIG);
  63       __printf_buffer_mark_failed (buf);
  64       return;
  65     case __printf_buffer_mode_fp:
  66       __printf_buffer_flush_fp ((struct __printf_buffer_fp *) buf);
  67       return;
  68     case __printf_buffer_mode_fp_to_wide:
  69       __printf_buffer_flush_fp_to_wide
  70         ((struct __printf_buffer_fp_to_wide *) buf);
  71       return;
  72     case __printf_buffer_mode_fphex_to_wide:
  73       __printf_buffer_flush_fphex_to_wide
  74         ((struct __printf_buffer_fphex_to_wide *) buf);
  75       return;
  76     case __printf_buffer_mode_obstack:
  77       __printf_buffer_flush_obstack ((struct __printf_buffer_obstack *) buf);
  78       return;
  79     }
  80   __builtin_trap ();
  81 }