Add ignoreof

src/builtins/set.c

@@ -50,6 +50,12 @@ int special_case(ef_t *ef, char **args)
 static
 bool handle_special_variables(ef_t *ef, char **args, char *var, int i)
 {
+    if (strcmp(var, "ignoreof") == 0) {
+        ef->exec_ctx->ignoreof = true;
+        return true;
+    }
+    if (args[i] == nullptr)
+        return false;
     if (strcmp(var, "precmd") == 0) {
         ef->exec_ctx->precmd = strdup(args[i]);
         return true;
@@ -87,6 +93,8 @@ int builtins_set(ef_t *ef, char **args)
 {
     char *var = nullptr;
 
+    if (args[1] != nullptr && handle_special_variables(ef, args, args[1], 2))
+        return RETURN_SUCCESS;
     if (my_array_len(args) < 3)
         return special_case(ef, args);
     return handle_set(ef, args, var);

src/builtins_handler.h

@@ -30,6 +30,7 @@ typedef struct {
     size_t prompt_len;
     char *precmd;
     char *cwdcmd;
+    bool ignoreof;
 } exec_ctx_t;
 
 size_t update_command(char **buffer,

src/repl/key_control.c

@@ -19,8 +19,10 @@ bool handle_key_ctrl_c(readline_helper_t *rh, exec_ctx_t *ec, buff_t *buff)
     return false;
 }
 
-bool handle_key_ctrl_d(readline_helper_t *, exec_ctx_t *, buff_t *buff)
+bool handle_key_ctrl_d(readline_helper_t *, exec_ctx_t *ec, buff_t *buff)
 {
+    if (ec->ignoreof)
+        return false;
     buff->sz = 0;
     return true;
 }

src/shell.c

@@ -82,6 +82,7 @@ int shell_loop(int is_a_tty, exec_ctx_t *exec_ctx)
     buff_t buff = { .str = nullptr, 0, .cap = 0 };
     struct termios repl_settings;
 
+    U_DEBUG_CALL(debug_env_entries, exec_ctx->env);
     exec_ctx->isatty = is_a_tty;
     tcgetattr(STDIN_FILENO, &repl_settings);
     exec_ctx->saved_term_settings = repl_settings;
@@ -152,12 +153,12 @@ int shell(opt_t *opt, char **env_ptr)
     local_t local = create_local();
     exec_ctx_t exec_ctx = {.env = &env, .local = &local, .opt = opt,
         .read_fd = get_read_fd(opt), .history = &history, .precmd = nullptr,
-        .history_command = cmd_history, .alias = &alias, 0, .cwdcmd = nullptr};
+        .history_command = cmd_history, .alias = &alias, 0, .cwdcmd = nullptr,
+        .ignoreof = false };
     int shell_result;
 
     if (exec_ctx.read_fd == -1 || (int)error_in_init(&exec_ctx))
         return RETURN_FAILURE;
-    U_DEBUG_CALL(debug_env_entries, &env);
     shell_result = shell_loop(isatty(exec_ctx.read_fd), &exec_ctx);
     if (opt->cmd == NULL && isatty(exec_ctx.read_fd)) {
         WRITE_CONST(STDOUT_FILENO, "exit\n");