mirror of https://github.com/joan2937/pigpio
145 lines
3.9 KiB
C
145 lines
3.9 KiB
C
/*
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This is free and unencumbered software released into the public domain.
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Anyone is free to copy, modify, publish, use, compile, sell, or
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distribute this software, either in source code form or as a compiled
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binary, for any purpose, commercial or non-commercial, and by any
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means.
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In jurisdictions that recognize copyright laws, the author or authors
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of this software dedicate any and all copyright interest in the
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software to the public domain. We make this dedication for the benefit
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of the public at large and to the detriment of our heirs and
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successors. We intend this dedication to be an overt act of
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relinquishment in perpetuity of all present and future rights to this
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software under copyright law.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
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OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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OTHER DEALINGS IN THE SOFTWARE.
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For more information, please refer to <http://unlicense.org/>
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*/
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/*
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This version is for pigpio version 3+
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <sys/socket.h>
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#include <arpa/inet.h>
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#include "pigpio.h"
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#include "command.h"
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/*
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This program provides a socket interface
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to the commands available from pigpio.
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*/
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int main(int argc , char *argv[])
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{
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int sock, r, idx, port;
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struct sockaddr_in server;
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cmdCmd_t cmd;
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char * portStr, * addrStr;
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char buf[128];
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sock = socket(AF_INET, SOCK_STREAM, 0);
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if (sock != -1)
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{
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portStr = getenv(PI_ENVPORT);
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if (portStr) port = atoi(portStr);
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else port = PI_DEFAULT_SOCKET_PORT;
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addrStr = getenv(PI_ENVADDR);
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if (!addrStr) addrStr="127.0.0.1";
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server.sin_addr.s_addr = inet_addr(addrStr);
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server.sin_family = AF_INET;
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server.sin_port = htons(port);
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if (connect(sock, (struct sockaddr *)&server, sizeof(server)) == 0)
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{
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switch(argc)
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{
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case 1:
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exit(0);
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case 2:
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sprintf(buf, "%10s", argv[1]);
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break;
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case 3:
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sprintf(buf, "%10s %10s", argv[1], argv[2]);
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break;
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case 4:
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sprintf(buf, "%10s %10s %10s", argv[1], argv[2], argv[3]);
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break;
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default:
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cmdFatal("what?");
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}
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if ((idx=cmdParse(buf, &cmd)) >= 0)
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{
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if (send(sock, &cmd, sizeof(cmdCmd_t), 0) == sizeof(cmdCmd_t))
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{
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if (recv(sock, &cmd, sizeof(cmdCmd_t), 0) == sizeof(cmdCmd_t))
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{
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switch (cmdInfo[idx].rv)
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{
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case 0:
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r = cmd.res;
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if (r < 0) cmdFatal("ERROR: %s", cmdErrStr(r));
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break;
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case 1:
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break;
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case 2:
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r = cmd.res;
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if (r < 0) cmdFatal("ERROR: %s", cmdErrStr(r));
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else printf("%d\n", r);
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break;
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case 3:
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printf("%08X\n", cmd.res);
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break;
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case 4:
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printf("%u\n", cmd.res);
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break;
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case 5:
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printf(cmdUsage);
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break;
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}
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}
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else cmdFatal("recv failed, %m");
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}
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else cmdFatal("send failed, %m");
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}
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else cmdFatal("what?");
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}
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else cmdFatal("connect failed, %m");
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close(sock);
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}
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else cmdFatal("socket failed, %m");
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return 0;
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}
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