Separate log and output streams

src/kernel/fat16.c

@@ -713,9 +713,8 @@ static uint64_t directory_stream_read(stream_t *self, uint64_t max, char *to) {
     return 0;
   }
   uint64_t length = string_length(node->name);
-  uint64_t to_read = length + 1 > max ? max : length + 1;
+  uint64_t to_read = length > max ? max : length;
   memory_copy(node->name, to_read, to);
-  to[to_read - 1] = '\0';
   return to_read;
 }
 

src/kernel/kernel.c

@@ -58,8 +58,10 @@ void kernel_main() {
   kernel->kernel_stack = kernel->kernel_rsp = (uint8_t *)memory_allocate(PAGE_SIZE) + PAGE_SIZE;
   kernel->user_stack = kernel->user_rsp = (uint8_t *)memory_allocate(PAGE_SIZE) + PAGE_SIZE;
   kernel->cwd = memory_allocate(sizeof(path_t));
-  kernel->fds[kernel->free_fd++] = keyboard_init();
-  kernel->fds[kernel->free_fd++] = vga_init();
+  kernel->fds[STDIN] = keyboard_init();
+  kernel->fds[STDOUT] = vga_init();
+  kernel->fds[STDERR] = kernel->fds[STDOUT];
+  kernel->free_fd = STDERR + 1;
   kernel->code = EXIT_CODE_OK;
 
   current_process = kernel;
@@ -79,10 +81,10 @@ void kernel_main() {
   fs_read(shell_node, 0, shell_node->size, shell_code);
   fs_close(shell_node);
 
-  process_t *terminal = process_create(kernel, terminal_code, terminal_node->size, 0, 1);
+  process_t *terminal = process_create(kernel, terminal_code, terminal_node->size, STDIN, STDOUT);
   memory_free(terminal_code);
 
-  process_t *shell = process_create(kernel, shell_code, shell_node->size, 0, 1);
+  process_t *shell = process_create(kernel, shell_code, shell_node->size, STDIN, STDOUT);
   memory_free(shell_code);
 
   uint64_t *terminal_stack = (uint64_t *)terminal->user_stack;

src/kernel/process.c

@@ -75,9 +75,10 @@ process_t *process_create(const process_t *parent, const uint8_t *code, uint64_t
   proc->pid = free_pid++;
   proc->state = PROCESS_RUNNING;
   proc->cwd = path_open_again(parent->cwd);
-  proc->fds[0] = parent->fds[stdin];
-  proc->fds[1] = parent->fds[stdout];
-  proc->free_fd = 2;
+  proc->fds[STDIN] = parent->fds[stdin];
+  proc->fds[STDOUT] = parent->fds[stdout];
+  proc->fds[STDERR] = parent->fds[STDERR];
+  proc->free_fd = STDERR + 1;
   proc->code = EXIT_CODE_OK;
 
   return proc;
@@ -129,7 +130,7 @@ void process_next() {
 }
 
 void process_destroy(process_t *proc) {
-  for (uint64_t i = 2; i < MAX_FDS; i++) {
+  for (uint64_t i = STDERR + 1; i < MAX_FDS; i++) {
     if (proc->fds[i]) {
       proc->fds[i]->close(proc->fds[i]);
       proc->fds[i] = NUL;