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6762698d92
If the response is a "bad commad", print that rather than expecting the user to know what command 19 is. Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
124 lines
3.3 KiB
C
124 lines
3.3 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 <netinet/in.h>
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#include <arpa/inet.h>
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#include <err.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <netdb.h>
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <unistd.h>
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#define DIAG_CMD_RSP_BAD_COMMAND 0x13
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#define DIAG_CMD_RSP_BAD_PARAMS 0x14
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#define DIAG_CMD_RSP_BAD_LENGTH 0x15
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int main(int argc, char **argv)
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{
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struct sockaddr_un addr;
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unsigned char *msg;
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struct timeval tv = {5, 0};
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fd_set rfds;
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ssize_t n;
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char buf[8192];
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int ret;
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int fd;
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int i;
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msg = calloc(argc - 1, sizeof(*msg));
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for (i = 1; i < argc; i++)
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msg[i - 1] = atoi(argv[i]);
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fd = socket(AF_UNIX, SOCK_SEQPACKET, 0);
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if (fd < 0)
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err(1, "failed to create unix socket");
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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 = connect(fd, (struct sockaddr*)&addr, sizeof(addr));
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if (ret < 0)
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err(1, "failed to connect to diag");
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n = write(fd, msg, argc - 1);
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if (n < 0)
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err(1, "failed to send request");
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for (;;) {
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FD_ZERO(&rfds);
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FD_SET(fd, &rfds);
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ret = select(fd + 1, &rfds, NULL, NULL, &tv);
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if (!ret) {
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fprintf(stderr, "timeout waiting for response\n");
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exit(1);
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}
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if (!FD_ISSET(fd, &rfds))
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continue;
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n = read(fd, buf, sizeof(buf));
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if (!n) {
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fprintf(stderr, "disconnected\n");
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exit(1);
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} else if (n < 0) {
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fprintf(stderr, "failed to read response: %s\n",
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strerror(errno));
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exit(1);
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}
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if (buf[0] == DIAG_CMD_RSP_BAD_COMMAND) {
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printf("Diag response: Bad command\n");
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break;
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}
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for (i = 0; i < n; i++) {
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printf("%s%d", i == 0 ? "" : " ", buf[i]);
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if (i % 16 == 15 || i == n - 1)
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printf("\n");
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}
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if (buf[0] == msg[0])
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break;
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}
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return 0;
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}
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