mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-14 15:20:04 +00:00
41bdb6e20c
2001-07-06 Paul Eggert <eggert@twinsun.com> * manual/argp.texi: Remove ignored LGPL copyright notice; it's not appropriate for documentation anyway. * manual/libc-texinfo.sh: "Library General Public License" -> "Lesser General Public License". 2001-07-06 Andreas Jaeger <aj@suse.de> * All files under GPL/LGPL version 2: Place under LGPL version 2.1.
60 lines
1.6 KiB
C
60 lines
1.6 KiB
C
/* Copyright (C) 1991, 1994, 1995, 1996, 1997 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, write to the Free
|
|
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
|
02111-1307 USA. */
|
|
|
|
#include <stdio.h>
|
|
#include <errno.h>
|
|
#include <string.h>
|
|
|
|
link_warning (gets, "the `gets' function is dangerous and should not be used.")
|
|
|
|
/* Read a newline-terminated string from stdin into S,
|
|
removing the trailing newline. Return S or NULL. */
|
|
char *
|
|
gets (s)
|
|
char *s;
|
|
{
|
|
register char *p = s;
|
|
register int c;
|
|
FILE *stream = stdin;
|
|
|
|
if (!__validfp (stream) || p == NULL)
|
|
{
|
|
__set_errno (EINVAL);
|
|
return NULL;
|
|
}
|
|
|
|
if (feof (stream) || ferror (stream))
|
|
return NULL;
|
|
|
|
while ((c = getchar ()) != EOF)
|
|
if (c == '\n')
|
|
break;
|
|
else
|
|
*p++ = c;
|
|
|
|
*p = '\0';
|
|
|
|
/* Return null if we had an error, or if we got EOF
|
|
before writing any characters. */
|
|
|
|
if (ferror (stream) || (feof (stream) && p == s))
|
|
return NULL;
|
|
|
|
return s;
|
|
}
|