diff options
Diffstat (limited to 'REORG.TODO/libio/iofgetpos.c')
-rw-r--r-- | REORG.TODO/libio/iofgetpos.c | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/REORG.TODO/libio/iofgetpos.c b/REORG.TODO/libio/iofgetpos.c new file mode 100644 index 0000000000..c1330dee29 --- /dev/null +++ b/REORG.TODO/libio/iofgetpos.c @@ -0,0 +1,94 @@ +/* Copyright (C) 1993-2017 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 + <http://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. */ + +/* We need to avoid the header declarations of these, because + the types don't match _IO_fgetpos and then the compiler will + complain about the mismatch when we do the alias below. */ +#define _IO_new_fgetpos64 __renamed__IO_new_fgetpos64 +#define _IO_fgetpos64 __renamed__IO_fgetpos64 + +#include "libioP.h" + +#undef _IO_new_fgetpos64 +#undef _IO_fgetpos64 + +#include <errno.h> +#include <stdlib.h> +#include <shlib-compat.h> + +int +_IO_new_fgetpos (_IO_FILE *fp, _IO_fpos_t *posp) +{ + _IO_off64_t pos; + int result = 0; + CHECK_FILE (fp, EOF); + _IO_acquire_lock (fp); + pos = _IO_seekoff_unlocked (fp, 0, _IO_seek_cur, 0); + if (_IO_in_backup (fp) && pos != _IO_pos_BAD) + { + if (fp->_mode <= 0) + pos -= fp->_IO_save_end - fp->_IO_save_base; + } + if (pos == _IO_pos_BAD) + { + /* ANSI explicitly requires setting errno to a positive value on + failure. */ +#ifdef EIO + if (errno == 0) + __set_errno (EIO); +#endif + result = EOF; + } + else if ((_IO_off64_t) (__typeof (posp->__pos)) pos != pos) + { +#ifdef EOVERFLOW + __set_errno (EOVERFLOW); +#endif + result = EOF; + } + else + { + posp->__pos = pos; + if (fp->_mode > 0 + && (*fp->_codecvt->__codecvt_do_encoding) (fp->_codecvt) < 0) + /* This is a stateful encoding, safe the state. */ + posp->__state = fp->_wide_data->_IO_state; + } + + _IO_release_lock (fp); + return result; +} + +strong_alias (_IO_new_fgetpos, __new_fgetpos) +versioned_symbol (libc, _IO_new_fgetpos, _IO_fgetpos, GLIBC_2_2); +versioned_symbol (libc, __new_fgetpos, fgetpos, GLIBC_2_2); + +#ifdef __OFF_T_MATCHES_OFF64_T +strong_alias (_IO_new_fgetpos, _IO_new_fgetpos64) +strong_alias (_IO_new_fgetpos64, __new_fgetpos64) +versioned_symbol (libc, _IO_new_fgetpos64, _IO_fgetpos64, GLIBC_2_2); +versioned_symbol (libc, __new_fgetpos64, fgetpos64, GLIBC_2_2); +#endif |