64 lines
1.5 KiB
C++
64 lines
1.5 KiB
C++
#include <sys/socket.h>
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#include <sys/un.h>
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#include <unistd.h>
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#include <cstdio>
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#include <cstdlib>
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#include <cstring>
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#include <iostream>
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#define SOCKET_FILE "/tmp/mysocket"
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// WARNING: UNTESTED
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int main() {
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int server_fd, client_fd;
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struct sockaddr_un addr;
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char buf[1024];
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ssize_t num_read;
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// Remove any previous socket file
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unlink(SOCKET_FILE);
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server_fd = socket(AF_UNIX, SOCK_STREAM, 0);
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if (server_fd == -1) {
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perror("socket");
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exit(EXIT_FAILURE);
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}
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memset(&addr, 0, sizeof(struct sockaddr_un));
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addr.sun_family = AF_UNIX;
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strncpy(addr.sun_path, SOCKET_FILE, sizeof(addr.sun_path) - 1);
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if (bind(server_fd, (struct sockaddr *)&addr, sizeof(struct sockaddr_un)) == -1) {
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perror("bind");
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exit(EXIT_FAILURE);
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}
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if (listen(server_fd, 5) == -1) {
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perror("listen");
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exit(EXIT_FAILURE);
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}
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std::cout << "Listening on " << SOCKET_FILE << "..." << std::endl;
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while (true) {
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client_fd = accept(server_fd, NULL, NULL);
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if (client_fd == -1) {
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perror("accept");
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continue;
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}
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num_read = read(client_fd, buf, sizeof(buf) - 1);
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if (num_read > 0) {
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buf[num_read] = '\0';
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std::cout << "Received: " << buf << std::endl;
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write(client_fd, buf, num_read); // Echo back
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}
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close(client_fd);
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}
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close(server_fd);
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unlink(SOCKET_FILE);
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return 0;
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}
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