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776f8c30fb
Add support for send_break to the generic console implementation. Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
76 lines
2.4 KiB
C
76 lines
2.4 KiB
C
/*
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* Copyright (c) 2020, Linaro Ltd.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* 3. Neither the name of the copyright holder nor the names of its contributors
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* may be used to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/file.h>
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#include <sys/stat.h>
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#include <err.h>
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#include <unistd.h>
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#include "cdba-server.h"
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#include "device.h"
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static int console_data(int fd, void *data)
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{
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struct msg hdr;
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char buf[128];
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ssize_t n;
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n = read(fd, buf, sizeof(buf));
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if (n < 0)
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return n;
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hdr.type = MSG_CONSOLE;
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hdr.len = n;
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write(STDOUT_FILENO, &hdr, sizeof(hdr));
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write(STDOUT_FILENO, buf, n);
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return 0;
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}
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void console_open(struct device *device)
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{
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device->console_fd = tty_open(device->console_dev, &device->console_tios);
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if (device->console_fd < 0)
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err(1, "failed to open %s", device->console_dev);
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watch_add_readfd(device->console_fd, console_data, device);
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}
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int console_write(struct device *device, const void *buf, size_t len)
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{
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return write(device->console_fd, buf, len);;
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}
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void console_send_break(struct device *device)
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{
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tcsendbreak(device->console_fd, 0);
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}
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