GMS Linux: start?

init/init.c

@@ -0,0 +1,52 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/stat.h>
+#include <sys/mount.h>
+#include <sys/wait.h>
+
+void spawn_shell() {
+    pid_t pid = fork();
+
+    if (pid == 0) {
+        char *argv[] = { "gmsh", NULL };
+        char *envp[] = { "PATH=/bin", "HOME=/", "TERM=linux", NULL };
+        execve("/bin/gmsh", argv, envp);
+        
+        perror("[init] Failed to exec gmsh");
+        exit(1);
+    } else if (pid > 0) {
+        int status;
+        waitpid(pid, &status, 0);
+        fprintf(stdout, "[init] gmsh exited (status %d).\n", status);
+    } else {
+        perror("[init] fork failed");
+    }
+}
+
+int main() {
+    printf("[init] System Initializing...\n");
+
+    if (mount("proc", "/proc", "proc", 0, NULL) != 0)
+        perror("mount /proc");
+
+    if (mount("sysfs", "/sys", "sysfs", 0, NULL) != 0)
+        perror("mount /sys");
+
+    // if (mount("devtmpfs", "/dev", "devtmpfs", 0, NULL) != 0)
+    //     perror("mount /dev");
+
+    mkdir("/tmp", 0777);
+    if (mount("tmpfs", "/tmp", "tmpfs", 0, "mode=1777") != 0) {
+        perror("[init] Failed to mount /tmp");
+    }
+
+    mkdir("/home", 0755);
+    if (mount("/dev/sda2", "/home", "ext4", 0, NULL) != 0) {
+        perror("[init] Failed to mount /home");
+    }
+
+    while (1) spawn_shell();
+    
+    return 0;
+}