102 lines
2.7 KiB
C++
102 lines
2.7 KiB
C++
#define _POSIX_C_SOURCE 200809L
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#include <string>
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#include <stdio.h>
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#include <sys/socket.h>
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#include <sys/un.h>
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#include "ipc/client.hpp"
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static const char ipc_magic[] = {'i', '3', '-', 'i', 'p', 'c'};
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static const size_t ipc_header_size = sizeof(ipc_magic)+8;
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std::string get_socketpath(void) {
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const char *env = getenv("SWAYSOCK");
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if (env) return std::string(env);
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std::string str;
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{
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std::string str_buf;
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FILE* in;
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char buf[512] = { 0 };
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if (!(in = popen("sway --get-socketpath 2>/dev/null", "r"))) {
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throw std::runtime_error("Failed to get socket path");
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}
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while (fgets(buf, sizeof(buf), in) != nullptr) {
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str_buf.append(buf, sizeof(buf));
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}
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pclose(in);
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str = str_buf;
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}
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if (str.back() == '\n') {
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str.pop_back();
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}
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return str;
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}
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int ipc_open_socket(std::string socket_path) {
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struct sockaddr_un addr;
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int socketfd;
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if ((socketfd = socket(AF_UNIX, SOCK_STREAM, 0)) == -1) {
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throw std::runtime_error("Unable to open Unix socket");
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}
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addr.sun_family = AF_UNIX;
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strncpy(addr.sun_path, socket_path.c_str(), sizeof(addr.sun_path) - 1);
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addr.sun_path[sizeof(addr.sun_path) - 1] = 0;
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int l = sizeof(struct sockaddr_un);
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if (connect(socketfd, (struct sockaddr *)&addr, l) == -1) {
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throw std::runtime_error("Unable to connect to " + socket_path);
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}
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return socketfd;
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}
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struct ipc_response ipc_recv_response(int socketfd) {
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char data[ipc_header_size];
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uint32_t *data32 = (uint32_t *)(data + sizeof(ipc_magic));
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size_t total = 0;
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while (total < ipc_header_size) {
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ssize_t received = recv(socketfd, data + total, ipc_header_size - total, 0);
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if (received <= 0) {
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throw std::runtime_error("Unable to receive IPC response");
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}
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total += received;
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}
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struct ipc_response response;
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total = 0;
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response.size = data32[0];
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response.type = data32[1];
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char payload[response.size + 1];
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while (total < response.size) {
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ssize_t received = recv(socketfd, payload + total, response.size - total, 0);
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if (received < 0) {
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throw std::runtime_error("Unable to receive IPC response");
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}
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total += received;
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}
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payload[response.size] = '\0';
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response.payload = std::string(payload);
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return response;
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}
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std::string ipc_single_command(int socketfd, uint32_t type, const char *payload, uint32_t *len) {
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char data[ipc_header_size];
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uint32_t *data32 = (uint32_t *)(data + sizeof(ipc_magic));
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memcpy(data, ipc_magic, sizeof(ipc_magic));
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data32[0] = *len;
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data32[1] = type;
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if (send(socketfd, data, ipc_header_size, 0) == -1) {
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throw std::runtime_error("Unable to send IPC header");
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}
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if (send(socketfd, payload, *len, 0) == -1) {
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throw std::runtime_error("Unable to send IPC payload");
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}
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struct ipc_response resp = ipc_recv_response(socketfd);
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std::string response = resp.payload;
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*len = resp.size;
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return response;
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}
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