From 9bec5056ec35008afd4d68528718fd4519cd3503 Mon Sep 17 00:00:00 2001 From: Henrik Rydberg Date: Sat, 18 Sep 2010 19:10:11 +0200 Subject: Initial evemu commit Evemu is a kernel device and emulator, which allows for remote creation and testing of arbitrary devices. Signed-off-by: Henrik Rydberg --- tools/evemu-echo.c | 75 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 75 insertions(+) create mode 100644 tools/evemu-echo.c (limited to 'tools/evemu-echo.c') diff --git a/tools/evemu-echo.c b/tools/evemu-echo.c new file mode 100644 index 0000000..d3501ea --- /dev/null +++ b/tools/evemu-echo.c @@ -0,0 +1,75 @@ +/***************************************************************************** + * + * evemu - Kernel device emulation + * + * Copyright (C) 2010 Henrik Rydberg + * Copyright (C) 2010 Canonical Ltd. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + * + ****************************************************************************/ + +#include "evemu.h" +#include +#include +#include + +static int evemu_echo_describe(FILE *fp) +{ + struct evemu_device dev; + int ret; + + ret = evemu_read(&dev, fp); + if (ret <= 0) + return ret; + + evemu_write(&dev, stdout); + + return 0; +} + +static int evemu_echo_event(FILE *fp) +{ + struct input_event ev; + int ret; + + while ((ret = evemu_read_event(fp, &ev)) > 0) + evemu_write_event(stdout, &ev); + + return ret; +} + +int main(int argc, char *argv[]) +{ + FILE *fp; + if (argc < 2) { + fprintf(stderr, "Usage: %s \n", argv[0]); + return -1; + } + fp = fopen(argv[1], "r"); + if (!fp) { + fprintf(stderr, "error: could not open file\n"); + return -1; + } + evemu_echo_describe(fp); + evemu_echo_event(fp); + fclose(fp); + return 0; +} -- cgit v1.2.3