diff options
Diffstat (limited to 'libio/iogets.c')
| -rw-r--r-- | libio/iogets.c | 86 |
1 files changed, 55 insertions, 31 deletions
diff --git a/libio/iogets.c b/libio/iogets.c index f45d9c16e3f..9e88ca1037a 100644 --- a/libio/iogets.c +++ b/libio/iogets.c @@ -1,47 +1,71 @@ -/* -Copyright (C) 1993 Free Software Foundation - -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 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. - -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. */ +/* Copyright (C) 1993, 1996, 1997 Free Software Foundation, Inc. + 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 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. + + 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 <limits.h> char* -DEFUN(_IO_gets, (buf), - char* buf) +_IO_gets (buf) + char *buf; { _IO_size_t count; - int ch = _IO_getc (_IO_stdin); + int ch; + char *retval; + + _IO_cleanup_region_start ((void (*) __P ((void *))) _IO_funlockfile, + _IO_stdin); + _IO_flockfile (_IO_stdin); + ch = _IO_getc_unlocked (_IO_stdin); if (ch == EOF) - return NULL; + { + retval = NULL; + goto unlock_return; + } if (ch == '\n') count = 0; else { - buf[0] = (char)ch; - count = _IO_getline(_IO_stdin, buf + 1, INT_MAX, '\n', 0) + 1; + buf[0] = (char) ch; + count = _IO_getline (_IO_stdin, buf + 1, INT_MAX, '\n', 0) + 1; if (_IO_stdin->_IO_file_flags & _IO_ERR_SEEN) - return NULL; + { + retval = NULL; + goto unlock_return; + } } buf[count] = 0; - return buf; + retval = buf; +unlock_return: + _IO_cleanup_region_end (1); + return retval; } + +#ifdef weak_alias +weak_alias (_IO_gets, gets) +#endif + +#ifdef _LIBC +link_warning (gets, "the `gets' function is dangerous and should not be used.") +#endif |
