mirror of
https://github.com/linux-msm/diag.git
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98 lines
2.7 KiB
C
98 lines
2.7 KiB
C
/*
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* Copyright (c) 2018, 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/socket.h>
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#include <sys/un.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <string.h>
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#include "diag.h"
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#include "dm.h"
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#include "watch.h"
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static int unix_listen(int fd, void *data)
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{
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struct diag_client *dm;
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int client;
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int ret;
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client = accept(fd, NULL, NULL);
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if (client < 0) {
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fprintf(stderr, "failed to accept");
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return 0;
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}
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ret = fcntl(client, F_SETFL, O_NONBLOCK);
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if (ret < 0) {
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fprintf(stderr, "failed to set O_NONBLOCK");
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return 0;
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}
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dm = dm_add("UNIX", client, client, false);
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dm_enable(dm);
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return 0;
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}
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int diag_unix_open(void)
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{
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struct sockaddr_un addr;
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int ret;
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int fd;
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fd = socket(AF_UNIX, SOCK_SEQPACKET, 0);
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if (fd < 0) {
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fprintf(stderr, "failed to create unix socket");
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return -1;
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}
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memset(&addr, 0, sizeof(addr));
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addr.sun_family = AF_UNIX;
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strncpy(addr.sun_path, "\0diag", sizeof(addr.sun_path)-1);
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ret = bind(fd, (struct sockaddr*)&addr, sizeof(addr));
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if (ret < 0) {
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fprintf(stderr, "failed to bind diag socket");
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return -1;
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}
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ret = listen(fd, 2);
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if (ret < 0) {
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fprintf(stderr, "failed to listen on diag socket\n");
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return -1;
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}
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watch_add_readfd(fd, unix_listen, NULL, NULL);
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return 0;
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}
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