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#ifdef __unix__
#include "acccre-server.h"
#include <memory.h>
#include <netdb.h>
/*#ifdef INET*/
#include <netinet/in.h>
/*#endif*/
#include <pthread.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <strings.h>
#include <sys/socket.h>
#include <sys/types.h>
/*#ifdef UNIX*/
#include <sys/un.h>
/*#endif*/
#include <unistd.h>
volatile sig_atomic_t sig_flag = 0;
/* TODO: call write() once; check for its errors */
static void sig_handler(int signo) {
char *sig_name = strsignal(signo);
char *sig_msg = " signal is caught\n";
write(STDOUT_FILENO, sig_name, strlen(sig_name));
write(STDOUT_FILENO, sig_msg, strlen(sig_msg));
sig_flag = 1;
}
void *process(void *arg) {
int client_fd = *((int *)arg);
char *buf = malloc(sizeof(acccre_size_t));
/* TODO: make a protocol */
while (sig_flag == 0) {
if (recv(client_fd, buf, sizeof(acccre_size_t), 0) > 0) {
/* Now, parse the request... */
acccre_size_t msg_len = *buf;
printf("size of message is %d\n", (acccre_size_t)msg_len);
buf = realloc(buf, msg_len);
recv(client_fd, buf, msg_len, 0);
char *msg = buf;
printf("%s\n", msg);
/* ...
char *response = (char *)malloc(BUFFER_SIZE * sizeof(char));
snprintf(response, BUFFER_SIZE,
"");
size_t response_len;*/
/* ... */
}
}
close(client_fd);
free(arg);
free(buf);
return 0;
}
int main (int argc, char *argv[]) {
struct sigaction sa = {
sig_handler, /* sa_handler */
0, /* sa_mask */
0 /* sa_flags */
};
for (int i = 0; sigs[i] != SIGXFSZ; i++) {
if (sigaction(sigs[i], &sa, NULL) != 0) {
perror("sigaction()");
exit(EXIT_FAILURE);
}
}
int server_fd;
if ((server_fd = socket(AF_UNIX, SOCK_STREAM, 0)) == -1) {
perror("socket()");
exit(EXIT_FAILURE);
}
struct sockaddr_un sun = {
AF_UNIX, /* sun_family */
DEFAULT_PATH /* sun_path */
};
if (argc > 1) {
/* Taken from https://pubs.opengroup.org/onlinepubs/9799919799/ */
if (sizeof(argv[1]) >= sizeof(((struct sockaddr_un *)0)->sun_path)) {
strcpy(sun.sun_path, argv[1]);
}
else {
fprintf(stderr, "Path to the socket is longer than %zu.\n", sizeof(((struct sockaddr_un *)0)->sun_path));
exit(EXIT_FAILURE);
}
}
if (bind(server_fd, (struct sockaddr *)&sun, sizeof(sun)) != 0) {
perror("bind()");
exit(EXIT_FAILURE);
}
if (listen(server_fd, 5) != 0) {
perror("listen()");
exit(EXIT_FAILURE);
}
puts("Ready!");
while (sig_flag == 0) {
struct sockaddr_un client_addr;
socklen_t client_addr_len = sizeof(client_addr);
int *client_fd = malloc(sizeof(int));
*client_fd = accept(server_fd, (struct sockaddr *)&client_addr, &client_addr_len);
if (*client_fd == -1) {
perror("accept()");
free(client_fd);
continue;
}
pthread_t thread_id; /* TODO */
pthread_create(&thread_id, NULL, process, (void *)client_fd);
pthread_detach(thread_id);
}
close(server_fd);
unlink(sun.sun_path);
return 0;
}
#endif
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