From 6132e1e97271fb915184803dec701fd39ef7bb10 Mon Sep 17 00:00:00 2001 From: Kaimakan71 Date: Sun, 21 Apr 2024 14:05:38 -0400 Subject: libc: Add close() and stdio functions Signed-off-by: Kaimakan71 Signed-off-by: Ian Moffett --- lib/libc/src/stdio/fputc.c | 49 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 49 insertions(+) create mode 100644 lib/libc/src/stdio/fputc.c (limited to 'lib/libc/src/stdio/fputc.c') diff --git a/lib/libc/src/stdio/fputc.c b/lib/libc/src/stdio/fputc.c new file mode 100644 index 0000000..c240426 --- /dev/null +++ b/lib/libc/src/stdio/fputc.c @@ -0,0 +1,49 @@ +/* + * Copyright (c) 2023-2024 Ian Marco Moffett and the Osmora Team. + * All rights reserved. + * + * 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. + * 3. Neither the name of Hyra 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 COPYRIGHT HOLDERS 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 COPYRIGHT OWNER 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. + */ + +#include + +int +fputc(int c, FILE *stream) +{ + unsigned char ch; + + if (stream == NULL || !(stream->flags & FILE_WRITE)) + return EOF; + + /* Try to flush stream if needed */ + ch = (unsigned char)c; + if ((stream->write_end - stream->write_pos) < 1) { + if (fflush(stream) == EOF) + return EOF; + } + *stream->write_pos++ = ch; + + return (int)ch; +} -- cgit v1.2.3