diff options
Diffstat (limited to 'libio/iofsetpos.c')
| -rw-r--r-- | libio/iofsetpos.c | 67 |
1 files changed, 40 insertions, 27 deletions
diff --git a/libio/iofsetpos.c b/libio/iofsetpos.c index ac8a3de..a8d816f 100644 --- a/libio/iofsetpos.c +++ b/libio/iofsetpos.c @@ -1,43 +1,56 @@ -/* -Copyright (C) 1993 Free Software Foundation +/* Copyright (C) 1993, 1995, 1997 Free Software Foundation, Inc. + This file is part of the GNU IO Library. -This file is part of the GNU IO Library. This library is free -software; you can redistribute it and/or modify it under the -terms of the GNU General Public License as published by the -Free Software Foundation; either version 2, or (at your option) -any later version. + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU General Public License as + published by the Free Software Foundation; either version 2, or (at + your option) any later version. -This 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 General Public License for more details. + This 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 + General Public License for more details. -You should have received a copy of the GNU General Public License -along with this library; see the file COPYING. If not, write to the Free -Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + You should have received a copy of the GNU General Public License + along with this library; see the file COPYING. If not, write to + the Free Software Foundation, 59 Temple Place - Suite 330, Boston, + MA 02111-1307, USA. -As a special exception, if you link this library with files -compiled with a GNU compiler to produce an executable, this does not cause -the resulting executable to be covered by the GNU General Public License. -This exception does not however invalidate any other reasons why -the executable file might be covered by the GNU General Public License. */ + As a special exception, if you link this library with files + compiled with a GNU compiler to produce an executable, this does + not cause the resulting executable to be covered by the GNU General + Public License. This exception does not however invalidate any + other reasons why the executable file might be covered by the GNU + General Public License. */ #include <libioP.h> #include <errno.h> int -DEFUN(_IO_fsetpos, (fp, posp), - _IO_FILE* fp AND const _IO_fpos_t *posp) +_IO_fsetpos (fp, posp) + _IO_FILE *fp; + const _IO_fpos_t *posp; { - CHECK_FILE(fp, EOF); - if (_IO_seekpos(fp, *posp, _IOS_INPUT|_IOS_OUTPUT) == _IO_pos_BAD) + int result; + CHECK_FILE (fp, EOF); + _IO_cleanup_region_start ((void (*) __P ((void *))) _IO_funlockfile, fp); + _IO_flockfile (fp); + if (_IO_seekpos (fp, *posp, _IOS_INPUT|_IOS_OUTPUT) == _IO_pos_BAD) { - /*ANSI explicily requires setting errno to a positive value on failure.*/ + /* ANSI explicitly requires setting errno to a positive value on + failure. */ #ifdef EIO if (errno == 0) - errno = EIO; + __set_errno (EIO); #endif - return EOF; + result = EOF; } - return 0; + else + result = 0; + _IO_cleanup_region_end (1); + return result; } + +#ifdef weak_alias +weak_alias (_IO_fsetpos, fsetpos) +#endif |