hermes

commit ef45714ddd140f811857ec3852298558b61a7038
parent 151576ac8e05971d1654e0d9bdcfa9a8a4a63bb4
Author: Francesco Saccone <francesco@francescosaccone.com>
Date:   Mon, 31 Mar 2025 14:03:51 +0200

feat: fork the process after socket creation

We will need two processed: the one where the privileges are
dropped to server the files and the one which will end the program,
where root privileges are required to close the socket.

Signed-off-by: Francesco Saccone <francesco@francescosaccone.com>

Diffstat:
M
hermes.c
 | 
20
++++++++++++++++++++

1 file changed, 20 insertions(+), 0 deletions(-)
diff --git a/hermes.c b/hermes.c
@@ -3,6 +3,8 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <sys/wait.h>
+#include <unistd.h>
 
 #include "socket.h"
 #include "utils.h"
@@ -27,6 +29,7 @@ main(int argc, char *argv[]) {
 	    server_socket_fd;
 	struct passwd *user;
 	struct group *group;
+	pid_t pid;
 
 	for (i = 1; i < argc; i++) {
 		char *argument = argv[i];
@@ -106,6 +109,23 @@ main(int argc, char *argv[]) {
 
 	server_socket_fd = create_socket(port);
 
+	pid = fork();
+
+	switch (pid) {
+	case -1:
+		critical("error: could not fork process.");
+		break;
+	case 0:
+		/* child process */
+		break;
+	default:
+		/* parent process: wait for the child process to exit */
+		int child_status;
+
+		waitpid(pid, &child_status, 0);
+		break;
+	}
+
 	while (1) {
 		int client_socket_fd = accept_client(server_socket_fd),
 		    buffer_size = 104857600 * sizeof(char); /* i.e. 100 MiB */