diff options
Diffstat (limited to 'lib/libc/stdio/getchar.c')
-rw-r--r-- | lib/libc/stdio/getchar.c | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/lib/libc/stdio/getchar.c b/lib/libc/stdio/getchar.c new file mode 100644 index 0000000..90c84ab --- /dev/null +++ b/lib/libc/stdio/getchar.c @@ -0,0 +1,68 @@ +/*- + * Copyright (c) 1990, 1993 + * The Regents of the University of California. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Chris Torek. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#if defined(LIBC_SCCS) && !defined(lint) +static char sccsid[] = "@(#)getchar.c 8.1 (Berkeley) 6/4/93"; +#endif /* LIBC_SCCS and not lint */ +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +/* + * A subroutine version of the macro getchar. + */ +#include "namespace.h" +#include <stdio.h> +#include "un-namespace.h" +#include "local.h" +#include "libc_private.h" + +#undef getchar +#undef getchar_unlocked + +int +getchar() +{ + int retval; + FLOCKFILE(stdin); + /* Orientation set by __sgetc() when buffer is empty. */ + /* ORIENT(stdin, -1); */ + retval = __sgetc(stdin); + FUNLOCKFILE(stdin); + return (retval); +} + +int +getchar_unlocked(void) +{ + + return (__sgetc(stdin)); +} |