92 lines
2.6 KiB
C
92 lines
2.6 KiB
C
#include "common.h"
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#include <signal.h>
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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 <sys/socket.h>
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#include <sys/un.h>
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#include <unistd.h>
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#include <sys/select.h>
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struct sockaddr_un sa_server, sa_client;
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void cleanup(void) {
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fprintf(stderr, "[client:dbg] Removing receiving socket.\n");
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if (sa_client.sun_path[0] != '\0') {
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unlink(sa_client.sun_path);
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}
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}
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void on_sigint(int sig) {
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(void)sig;
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cleanup();
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}
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int main(int argc, char **argv) {
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int sock_fd;
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static char buffer[BUFFER_SIZE];
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EXPECT(sock_fd = socket(AF_UNIX, SOCK_DGRAM, 0), > 0);
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signal(SIGINT, on_sigint);
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atexit(cleanup);
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memset(&sa_server, 0, sizeof(sa_server));
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memset(&sa_client, 0, sizeof(sa_client));
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sa_server.sun_family = sa_client.sun_family = AF_UNIX;
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snprintf(sa_client.sun_path, sizeof(sa_client.sun_path), CLIENT_SOCKET_PATH, (long)getpid());
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strncpy(sa_server.sun_path, DAEMON_SOCKET_PATH, sizeof(sa_server.sun_path) - 1);
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EXPECT(bind(sock_fd, (struct sockaddr *)&sa_client, sizeof(struct sockaddr_un)), == 0);
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if (argc == 1) {
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fprintf(stderr, "[client:inf] You're in the interactive mode. Press Ctrl+C or Ctrl+D to exit.\n");
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struct timeval timeout;
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fd_set fds;
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int retval, data_len;
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while (1) {
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timeout.tv_sec = 1;
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timeout.tv_usec = 0;
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FD_ZERO(&fds);
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FD_SET(STDIN_FILENO, &fds);
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FD_SET(sock_fd, &fds);
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EXPECT(retval = select(sock_fd + 1, &fds, 0, 0, &timeout), != -1);
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if (retval > 0) {
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if (FD_ISSET(STDIN_FILENO, &fds)) {
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EXPECT(data_len = read(STDIN_FILENO, buffer, BUFFER_SIZE), != -1);
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if (data_len == 0) {
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break;
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}
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buffer[data_len - 1] = '\0';
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EXPECT(sendto(sock_fd, buffer, strlen(buffer), 0, (struct sockaddr *)&sa_server, sizeof(sa_server)), == (ssize_t)strlen(buffer));
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}
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if (FD_ISSET(sock_fd, &fds)) {
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while ((data_len = recv(sock_fd, buffer, BUFFER_SIZE, 0)) > 0) {
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printf("%.*s", data_len, buffer);
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}
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}
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}
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}
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} else {
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for (int i = 1; i < argc; i++) {
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strncat(buffer, argv[i], BUFFER_SIZE - strlen(buffer) - 1);
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if (i != argc - 1) {
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strncat(buffer, " ", BUFFER_SIZE - strlen(buffer) - 1);
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}
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}
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printf("send: '%s'\n", buffer);
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EXPECT(sendto(sock_fd, buffer, strlen(buffer), 0, (struct sockaddr *)&sa_server, sizeof(sa_server)), == (ssize_t)strlen(buffer));
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int data_len;
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while ((data_len = recv(sock_fd, buffer, BUFFER_SIZE, 0)) > 0) {
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printf("%.*s", data_len, buffer);
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}
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}
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exit(EXIT_SUCCESS);
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}
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