From: Kevin Day <Kevin@kevux.org>
Date: Fri, 26 Jul 2024 04:12:25 +0000 (-0500)
Subject: Progress: Continue migrating the project.
X-Git-Url: https://git.kevux.org/?a=commitdiff_plain;h=03bb850ab7d78d9d33ec73d05fe04b4ab78cbc2b;p=control

Progress: Continue migrating the project.
---

diff --git a/data/build/defines b/data/build/defines
index 822a9b6..6ea2305 100644
--- a/data/build/defines
+++ b/data/build/defines
@@ -1,18 +1,35 @@
 # fss-0000
 
+_di_libcap_         Disable libcap support, allow for compiling and linking without libcap (-lcap).
 _di_thread_support_ Disables thread support.
 
+_libcap_legacy_only_ Disable functionality provided by later versions of libcap (2.43 and later).
+
 _controller_as_init_ The controller program is compiled as an init replacement and this control program should treat it as such.
+
+_override_control_path_settings_ Use this as the default full path to the controlsettings.
+_override_control_path_settings_length_ The number of bytes representing the string in _override_controller_path_settings_length_ (not including the terminating NULL).
+
 _override_controller_name_socket_ Use this as the default custom file name representing the controller program socket.
 _override_controller_name_socket_length_ The number of bytes representing the string in _override_controller_name_socket_ (not including the terminating NULL).
-_override_controller_path_socket_ Use this as the default custom directory path representing the location of the controller program socket.
-_override_controller_path_socket_length_ The number of bytes representing the string in _override_controller_path_socket_ (not including the terminating NULL).
+
+_override_controller_default_engine_     Provide a custom scripting engine name string to execute (such as php).
+_override_controller_path_pid_           Use this as the default custom directory path representing the location of the controller program pid.
+_override_controller_path_pid_prefix_    Use this as the default custom prefix prepended to the file name of the file representing the controller program pid.
+_override_controller_path_pid_suffix_    Use this as the default custom prefix prepended to the file name of the file representing the controller program pid.
+_override_controller_path_settings_      Use this as the default custom settings path, such as /etc/settings.
+_override_controller_path_socket_        Use this as the default custom directory path representing the location of the controller program socket.
 _override_controller_path_socket_prefix_ Use this as the default custom prefix prepended to the file name of the file representing the controller program socket.
-_override_controller_path_socket_prefix_length_ The number of bytes representing the string in _override_controller_path_socket_prefix_ (not including the terminating NULL).
 _override_controller_path_socket_suffix_ Use this as the default custom prefix prepended to the file name of the file representing the controller program socket.
+
+_override_controller_default_engine_length_     The number of bytes representing the string in _override_controller_default_engine_ (not including the terminating NULL).
+_override_controller_path_pid_length_           The number of bytes representing the string in _override_controller_path_pid_ (not including the terminating NULL).
+_override_controller_path_pid_prefix_length_    The number of bytes representing the string in _override_controller_path_pid_prefix_ (not including the terminating NULL).
+_override_controller_path_pid_suffix_length_    The number of bytes representing the string in _override_controller_path_pid_suffix_ (not including the terminating NULL).
+_override_controller_path_settings_length_      The number of bytes representing the string in _override_controller_path_settings_ (not including the terminating NULL).
+_override_controller_path_socket_length_        The number of bytes representing the string in _override_controller_path_socket_ (not including the terminating NULL).
+_override_controller_path_socket_prefix_length_ The number of bytes representing the string in _override_controller_path_socket_prefix_ (not including the terminating NULL).
 _override_controller_path_socket_suffix_length_ The number of bytes representing the string in _override_controller_path_socket_suffix_ (not including the terminating NULL).
-_override_control_path_settings_ Use this as the default full path to the controlsettings.
-_override_control_path_settings_length_ The number of bytes representing the string in _override_controller_path_settings_length_ (not including the terminating NULL).
 
-_pthread_attr_unsupported_ Disable non-portable functionality associated with pthread_attr.
+_pthread_attr_unsupported_     Disable non-portable functionality associated with pthread_attr.
 _pthread_sigqueue_unsupported_ Disable GNU specific sigqueue().
diff --git a/data/build/fakefile b/data/build/fakefile
index affda72..e6df133 100644
--- a/data/build/fakefile
+++ b/data/build/fakefile
@@ -21,9 +21,9 @@ help:
 
   print
   print The following operations are available\:
-  print "  - context:'notable'help:context:'reset'               Perform the help operation, printing this message."
-  print "  - context:'notable'install:context:'reset'            A helper operation that calls the ./install.sh script for the control program."
-  print "  - context:'notable'main:context:'reset'               Compilation using the build settings mode for the control program (default)."
+  print "  - context:'notable'help:context:'reset'     Perform the help operation, printing this message."
+  print "  - context:'notable'install:context:'reset'  A helper operation that calls the ./install.sh script for the control program."
+  print "  - context:'notable'main:context:'reset'     Compilation using the build settings mode for the control program (default)."
 
   print
   print The context:'notable'install context:'reset'operation supports the context:'notable'work,context:'reset' context:'notable'verbosity,context:'reset' and context:'notable'color context:'reset'parameters.
diff --git a/data/build/settings b/data/build/settings
index 5dfb9e9..e341e6b 100644
--- a/data/build/settings
+++ b/data/build/settings
@@ -5,8 +5,8 @@
 #   - individual_thread: This is required when compiling in individual mode with "thread" mode.
 #   - level:             Compile using per level libraries.
 #   - monolithic:        Compile using per monolithic libraries.
-#   - clang:             Use clang rather than the default, which is generally gcc.
-#   - gcc:               Use gcc specific settings.
+#   - clang:             Use CLang rather than the default, which is generally GCC.
+#   - gcc:               Use GCC specific settings.
 #   - test:              Compile for a test, such as unit testing.
 #   - fanalyzer:         Compile using GCC's -fanalyzer compile time option.
 #   - coverage:          Compile for building coverage.
@@ -39,13 +39,13 @@ build_libraries-individual_thread -lf_thread
 build_libraries-level -lfll_2 -lfll_1 -lfll_0
 build_libraries-monolithic -lfll
 
-build_sources_library main/common.c main/common/define.c main/common/enumeration.c main/common/print.c main/common/string.c main/common/type.c
-build_sources_library main/print/data.c main/print/debug.c main/print/error.c main/print/message.c main/print/warning.c
-build_sources_library main/action.c main/control.c main/packet.c main/payload.c main/signal.c main/thread.c
+build_sources_library common.c common/define.c common/enumeration.c common/print.c common/string.c common/type.c
+build_sources_library print/data.c print/debug.c print/error.c print/message.c print/warning.c
+build_sources_library action.c packet.c payload.c signal.c thread.c
 
-build_sources_headers main/common.h main/common/define.h main/common/enumeration.h main/common/print.h main/common/string.h main/common/type.h
-build_sources_headers main/print/data.h main/print/debug.h main/print/error.h main/print/message.h main/print/warning.h
-build_sources_headers main/action.h main/control.h main/packet.h main/payload.h main/signal.h main/thread.h
+build_sources_headers common.h common/define.h common/enumeration.h common/print.h common/string.h common/type.h
+build_sources_headers print/data.h print/debug.h print/error.h print/message.h print/warning.h
+build_sources_headers action.h control.h packet.h payload.h signal.h thread.h
 
 build_sources_documentation man
 
@@ -63,6 +63,7 @@ path_object_static static
 path_program_script script
 path_program_shared shared
 path_program_static static
+path_sources sources/c/program/control/main
 
 has_path_standard no
 preserve_path_headers yes
diff --git a/sources/c/program/control/control/main.c b/sources/c/program/control/control/main.c
index a39d0e3..0e5c542 100644
--- a/sources/c/program/control/control/main.c
+++ b/sources/c/program/control/control/main.c
@@ -27,17 +27,49 @@ int main(const int argc, const f_string_t *argv, const f_string_t *envp) {
 
   data.setting.flag |= control_main_flag_interruptible_e;
 
+  data.setting.socket.domain = f_socket_protocol_family_local_e;
+  data.setting.socket.type = f_socket_type_stream_e;
+  data.setting.socket.length = sizeof(struct sockaddr_un);
+
   fll_program_standard_set_up(&data.program);
 
   f_file_umask_get(&data.program.umask);
 
-  {
-    const f_console_arguments_t arguments = macro_f_console_arguments_t_initialize_1(argc, argv, envp);
+  #ifdef _di_thread_support_
+    {
+      const f_console_arguments_t arguments = macro_f_console_arguments_t_initialize_1(argc, argv, envp);
 
-    control_setting_load(arguments, &data);
-  }
+      control_setting_load(arguments, &data);
+    }
+
+    control_process(&data);
+  #else
+    {
+      f_thread_id_t id_signal;
+
+      memset(&id_signal, 0, sizeof(f_thread_id_t));
+
+      data.setting.state.status = f_thread_create(0, &id_signal, &control_thread_signal, (void *) &data);
+
+      if (F_status_is_error(data.setting.state.status)) {
+        control_print_error(&data.program.error, macro_control_f(f_thread_create));
+      }
+      else {
+        {
+          const f_console_arguments_t arguments = macro_f_console_arguments_t_initialize_1(argc, argv, envp);
+
+          control_setting_load(arguments, &data);
+        }
+
+        if (!control_signal_check(&data)) {
+          control_process(&data);
+        }
 
-  control_process(&data);
+        f_thread_cancel(id_signal);
+        f_thread_join(id_signal, 0);
+      }
+    }
+  #endif // _di_thread_support_
 
   control_delete(&data);
 
diff --git a/sources/c/program/control/main/action.c b/sources/c/program/control/main/action.c
index f9d818d..c29a5db 100644
--- a/sources/c/program/control/main/action.c
+++ b/sources/c/program/control/main/action.c
@@ -74,7 +74,7 @@ extern "C" {
 #endif // _di_control_action_type_name_
 
 #ifndef _di_control_action_verify_
-  void control_action_verify(control_main_t * const main) {
+  void control_action_verify(control_t * const main) {
 
     if (!main) return;
 
diff --git a/sources/c/program/control/main/action.h b/sources/c/program/control/main/action.h
index b0d401a..3917f0b 100644
--- a/sources/c/program/control/main/action.h
+++ b/sources/c/program/control/main/action.h
@@ -56,7 +56,7 @@ extern "C" {
  *     F_parameter (with error bit) on parameter validation/verification failure.
  */
 #ifndef _di_control_action_verify_
-  extern void control_action_verify(control_main_t * const main);
+  extern void control_action_verify(control_t * const main);
 #endif // _di_control_action_verify_
 
 #ifdef __cplusplus
diff --git a/sources/c/program/control/main/common.c b/sources/c/program/control/main/common.c
index 1ef8754..aab7c08 100644
--- a/sources/c/program/control/main/common.c
+++ b/sources/c/program/control/main/common.c
@@ -5,7 +5,7 @@ extern "C" {
 #endif
 
 #ifndef _di_control_setting_load_
-  void control_setting_load(const f_console_arguments_t arguments, control_main_t * const main) {
+  void control_setting_load(const f_console_arguments_t arguments, control_t * const main) {
 
     if (!main) return;
 
diff --git a/sources/c/program/control/main/common.h b/sources/c/program/control/main/common.h
index c6e8f21..e846daf 100644
--- a/sources/c/program/control/main/common.h
+++ b/sources/c/program/control/main/common.h
@@ -38,7 +38,7 @@ extern "C" {
  * @see fll_program_parameter_process_context()
  */
 #ifndef _di_control_setting_load_
-  extern void control_setting_load(const f_console_arguments_t arguments, control_main_t * const main);
+  extern void control_setting_load(const f_console_arguments_t arguments, control_t * const main);
 #endif // _di_control_setting_load_
 
 #ifdef __cplusplus
diff --git a/sources/c/program/control/main/common/define.h b/sources/c/program/control/main/common/define.h
index 608f3b3..1a8c2e0 100644
--- a/sources/c/program/control/main/common/define.h
+++ b/sources/c/program/control/main/common/define.h
@@ -45,6 +45,18 @@ extern "C" {
 #endif // _di_control_default_d_
 
 /**
+ * A codes repesent different flags associated with a packet.
+ *
+ * control_packet_flag_*_d:
+ *   - binary:     Designate that the packet is in binary mode (when not set then packet is in string mode).
+ *   - endian_big: Designate that the packet is in big endian order (when not set then packet is in little endian order).
+ */
+#ifndef _di_control_packet_flag_d_
+  #define control_packet_flag_binary_d     0x80
+  #define control_packet_flag_endian_big_d 0x40
+#endif // _di_control_packet_flag_d_
+
+/**
  * The program signal defines.
  *
  * control_signal_*_d:
diff --git a/sources/c/program/control/main/common/enumeration.h b/sources/c/program/control/main/common/enumeration.h
index 8770f67..8fa8286 100644
--- a/sources/c/program/control/main/common/enumeration.h
+++ b/sources/c/program/control/main/common/enumeration.h
@@ -19,23 +19,26 @@ extern "C" {
 /**
  * Codes representing supported actions.
  *
- * freeze:   Perform the freeze controller operation.
- * kexec:    Perform the kexec controller operation (only for init mode).
- * kill:     Perform the kill controller operation.
- * pause:    Perform the pause controller operation.
- * reboot:   Perform the reboot controller operation (only for init mode).
- * reload:   Perform the reload controller operation.
- * rerun:    Perform the rerun controller operation.
- * restart:  Perform the restart controller operation.
- * resume:   Perform the resume controller operation.
- * shutdown: Perform the shutdown controller operation (only for init mode).
- * start:    Perform the start controller operation.
- * stop:     Perform the stop controller operation.
- * thaw:     Perform the thaw controller operation.
+ * control_action_type_*_e:
+ *   - none:     No type set.
+ *   - freeze:   Perform the freeze controller operation.
+ *   - kexec:    Perform the kexec controller operation (only for init mode).
+ *   - kill:     Perform the kill controller operation.
+ *   - pause:    Perform the pause controller operation.
+ *   - reboot:   Perform the reboot controller operation (only for init mode).
+ *   - reload:   Perform the reload controller operation.
+ *   - rerun:    Perform the rerun controller operation.
+ *   - restart:  Perform the restart controller operation.
+ *   - resume:   Perform the resume controller operation.
+ *   - shutdown: Perform the shutdown controller operation (only for init mode).
+ *   - start:    Perform the start controller operation.
+ *   - stop:     Perform the stop controller operation.
+ *   - thaw:     Perform the thaw controller operation.
  */
 #ifndef _di_control_action_type_e_
   enum {
-    control_action_type_freeze_e = 1,
+    control_action_type_none_e = 0,
+    control_action_type_freeze_e,
     control_action_type_kexec_e,
     control_action_type_kill_e,
     control_action_type_pause_e,
@@ -52,33 +55,6 @@ extern "C" {
 #endif // _di_control_action_type_e_
 
 /**
- * Supported payload types.
- *
- * controller: The payload is a controller payload.
- * error:      The payload is an error payload.
- * init:       The payload is an init payload (only available when operating in "init" mode).
- */
-#ifndef _di_control_payload_type_e_
-  enum {
-    control_payload_type_controller_e = 1,
-    control_payload_type_error_e,
-    control_payload_type_init_e,
-  }; // enum
-#endif // _di_control_payload_type_e_
-
-/**
- * A codes repesent different flags associated with a packet.
- *
- * control_packet_flag_*:
- *   - binary:     Designate that the packet is in binary mode (when not set then packet is in string mode).
- *   - endian_big: Designate that the packet is in big endian order (when not set then packet is in little endian order).
- */
-#ifndef _di_control_packet_flag_e_
-  #define control_packet_flag_binary_d     0x80
-  #define control_packet_flag_endian_big_d 0x40
-#endif // _di_control_packet_flag_e_
-
-/**
  * Flags passed to the main function or program.
  *
  * control_main_flag_*_e:
@@ -87,7 +63,7 @@ extern "C" {
  *   - header:                 Enable printing of headers.
  *   - help:                   Print help.
  *   - pipe:                   Use the input pipe.
- *   - return:                 The parameter is specified.
+ *   - return:                 Print a message about the response packet.
  *   - version:                Print version.
  *   - version_copyright_help: A helper flag representing version, copyright, and help flag bits being set.
  */
@@ -104,9 +80,25 @@ extern "C" {
 #endif // _di_control_main_flag_e_
 
 /**
+ * Supported payload types.
+ *
+ * control_payload_type_*_e:
+ *   - controller: The payload is a controller payload.
+ *   - error:      The payload is an error payload.
+ *   - init:       The payload is an init payload (only available when operating in "init" mode).
+ */
+#ifndef _di_control_payload_type_e_
+  enum {
+    control_payload_type_controller_e = 1,
+    control_payload_type_error_e,
+    control_payload_type_init_e,
+  }; // enum
+#endif // _di_control_payload_type_e_
+
+/**
  * The main program parameters.
  */
-#ifndef _di_control_parameter_d_
+#ifndef _di_control_parameter_e_
   enum {
     control_parameter_name_e = f_console_standard_parameter_last_e,
     control_parameter_return_e,
@@ -125,7 +117,7 @@ extern "C" {
     }
 
   #define control_parameter_total_d (f_console_parameter_state_type_total_d + 4)
-#endif // _di_control_parameter_d_
+#endif // _di_control_parameter_e_
 
 /**
  * Flags for fine-tuned print control.
diff --git a/sources/c/program/control/main/common/string.c b/sources/c/program/control/main/common/string.c
index a9ab36b..42a41c7 100644
--- a/sources/c/program/control/main/common/string.c
+++ b/sources/c/program/control/main/common/string.c
@@ -8,11 +8,6 @@ extern "C" {
   const f_string_static_t control_program_version_s = macro_f_string_static_t_initialize_1(CONTROL_program_version_s, 0, CONTROL_program_version_s_length);
 #endif // _di_control_program_version_s_
 
-#ifndef _di_control_program_name_s_
-  const f_string_static_t control_program_name_s = macro_f_string_static_t_initialize_1(CONTROL_program_name_s, 0, CONTROL_program_name_s_length);
-  const f_string_static_t control_program_name_long_s = macro_f_string_static_t_initialize_1(CONTROL_program_name_long_s, 0, CONTROL_program_name_long_s_length);
-#endif // _di_control_program_name_s_
-
 #ifndef _di_control_parameter_s_
   const f_string_static_t control_short_name_s = macro_f_string_static_t_initialize_1(CONTROL_short_name_s, 0, CONTROL_short_name_s_length);
   const f_string_static_t control_short_return_s = macro_f_string_static_t_initialize_1(CONTROL_short_return_s, 0, CONTROL_short_return_s_length);
diff --git a/sources/c/program/control/main/common/type.c b/sources/c/program/control/main/common/type.c
index c688158..46e06f9 100644
--- a/sources/c/program/control/main/common/type.c
+++ b/sources/c/program/control/main/common/type.c
@@ -4,30 +4,30 @@
 extern "C" {
 #endif
 
-#ifndef _di_control_main_delete_
-  void control_main_delete(control_main_t * const main) {
+#ifndef _di_control_delete_
+  void control_delete(control_t * const control) {
 
-    if (!main) return;
+    if (!control) return;
 
-    fll_program_data_delete(&main->program);
-    control_setting_delete(&main->setting);
+    fll_program_data_delete(&control->program);
+    control_setting_delete(&control->setting);
 
-    f_memory_array_resize(0, sizeof(f_char_t), (void **) &main->cache.large.string, &main->cache.large.used, &main->cache.large.size);
-    f_memory_array_resize(0, sizeof(f_char_t), (void **) &main->cache.small.string, &main->cache.small.used, &main->cache.small.size);
-    f_memory_array_resize(0, sizeof(f_char_t), (void **) &main->cache.packet.string, &main->cache.packet.used, &main->cache.packet.size);
+    f_memory_array_resize(0, sizeof(f_char_t), (void **) &control->cache.large.string, &control->cache.large.used, &control->cache.large.size);
+    f_memory_array_resize(0, sizeof(f_char_t), (void **) &control->cache.small.string, &control->cache.small.used, &control->cache.small.size);
+    f_memory_array_resize(0, sizeof(f_char_t), (void **) &control->cache.packet.string, &control->cache.packet.used, &control->cache.packet.size);
 
-    f_memory_array_resize(0, sizeof(f_range_t), (void **) &main->cache.objects.array, &main->cache.objects.used, &main->cache.objects.size);
-    f_memory_arrays_resize(0, sizeof(f_ranges_t), (void **) &main->cache.contents.array, &main->cache.contents.used, &main->cache.contents.size, &f_rangess_delete_callback);
+    f_memory_array_resize(0, sizeof(f_range_t), (void **) &control->cache.objects.array, &control->cache.objects.used, &control->cache.objects.size);
+    f_memory_arrays_resize(0, sizeof(f_ranges_t), (void **) &control->cache.contents.array, &control->cache.contents.used, &control->cache.contents.size, &f_rangess_delete_callback);
 
-    f_memory_array_resize(0, sizeof(f_range_t), (void **) &main->cache.packet_objects.array, &main->cache.packet_objects.used, &main->cache.packet_objects.size);
-    f_memory_arrays_resize(0, sizeof(f_ranges_t), (void **) &main->cache.packet_contents.array, &main->cache.packet_contents.used, &main->cache.packet_contents.size, &f_rangess_delete_callback);
+    f_memory_array_resize(0, sizeof(f_range_t), (void **) &control->cache.packet_objects.array, &control->cache.packet_objects.used, &control->cache.packet_objects.size);
+    f_memory_arrays_resize(0, sizeof(f_ranges_t), (void **) &control->cache.packet_contents.array, &control->cache.packet_contents.used, &control->cache.packet_contents.size, &f_rangess_delete_callback);
 
-    f_memory_array_resize(0, sizeof(f_range_t), (void **) &main->cache.header_objects.array, &main->cache.header_objects.used, &main->cache.header_objects.size);
-    f_memory_arrays_resize(0, sizeof(f_ranges_t), (void **) &main->cache.header_contents.array, &main->cache.header_contents.used, &main->cache.header_contents.size, &f_rangess_delete_callback);
+    f_memory_array_resize(0, sizeof(f_range_t), (void **) &control->cache.header_objects.array, &control->cache.header_objects.used, &control->cache.header_objects.size);
+    f_memory_arrays_resize(0, sizeof(f_ranges_t), (void **) &control->cache.header_contents.array, &control->cache.header_contents.used, &control->cache.header_contents.size, &f_rangess_delete_callback);
 
-    f_memory_array_resize(0, sizeof(f_number_unsigned_t), (void **) &main->cache.delimits.array, &main->cache.delimits.used, &main->cache.delimits.size);
+    f_memory_array_resize(0, sizeof(f_number_unsigned_t), (void **) &control->cache.delimits.array, &control->cache.delimits.used, &control->cache.delimits.size);
   }
-#endif // _di_control_main_delete_
+#endif // _di_control_delete_
 
 #ifndef _di_control_setting_delete_
   void control_setting_delete(control_setting_t * const setting) {
diff --git a/sources/c/program/control/main/common/type.h b/sources/c/program/control/main/common/type.h
index fe623d4..c42d467 100644
--- a/sources/c/program/control/main/common/type.h
+++ b/sources/c/program/control/main/common/type.h
@@ -158,26 +158,27 @@ extern "C" {
  *   - setting: The settings data.
  *   - cache:   The cache data.
  */
-#ifndef _di_control_main_t_
+#ifndef _di_control_t_
   typedef struct {
     fll_program_data_t program;
+
     control_setting_t setting;
     control_cache_t cache;
-  } control_main_t;
+  } control_t;
 
-  #define control_main_t_initialize \
+  #define control_t_initialize \
     { \
       fll_program_data_t_initialize, \
       control_setting_t_initialize, \
       control_cache_t_initialize, \
     }
-#endif // _di_control_main_t_
+#endif // _di_control_t_
 
 /**
- * Deallocate main program data.
+ * Deallocate control data.
  *
- * @param main
- *   The main program data.
+ * @param control
+ *   The control data.
  *
  *   Must not be NULL.
  *
@@ -188,9 +189,9 @@ extern "C" {
  * @see fll_program_data_delete()
  * @see control_setting_delete()
  */
-#ifndef _di_control_main_delete_
-  extern void control_main_delete(control_main_t * const main);
-#endif // _di_control_main_delete_
+#ifndef _di_control_delete_
+  extern void control_delete(control_t * const control);
+#endif // _di_control_delete_
 
 /**
  * Delete the program main setting data.
diff --git a/sources/c/program/control/main/control.c b/sources/c/program/control/main/control.c
deleted file mode 100644
index ee0540c..0000000
--- a/sources/c/program/control/main/control.c
+++ /dev/null
@@ -1,110 +0,0 @@
-#include "control.h"
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#ifndef _di_control_main_
-  void control_main(control_main_t * const main) {
-
-    if (!main) return;
-    if (F_status_is_error(main->setting.state.status)) return;
-
-    main->setting.state.status = F_okay;
-
-    if (main->setting.flag & control_main_flag_version_copyright_help_e) {
-      if (main->setting.flag & control_main_flag_help_e) {
-        control_print_message_help(&main->program.message);
-      }
-      else if (main->setting.flag & control_main_flag_version_e) {
-        fll_program_print_version(&main->program.message, control_program_version_s);
-      }
-      else if (main->setting.flag & control_main_flag_copyright_e) {
-        fll_program_print_copyright(&main->program.message, fll_program_copyright_year_author_s);
-      }
-
-      return;
-    }
-
-    if (main->setting.flag & control_main_flag_pipe_e) {
-      control_print_error_pipe_supported_not(&main->program.error);
-
-      main->setting.state.status = F_status_set_error(F_support_not);
-    }
-    else if (main->setting.actions.used) {
-      main->setting.action = control_action_type_identify(main->setting.actions.array[0]);
-
-      if (main->setting.action) {
-        control_action_verify(main);
-      }
-      else {
-        control_print_error_parameter_action_not(&main->program.error, main->setting.actions.array[0]);
-
-        main->setting.state.status = F_status_set_error(F_parameter);
-      }
-
-      if (F_status_is_error_not(main->setting.state.status)) {
-        control_packet_build(main);
-
-        if (F_status_is_error(main->setting.state.status)) {
-          if (F_status_set_fine(main->setting.state.status) == F_too_large) {
-            control_print_error_request_packet_too_large(&main->program.error);
-          }
-          else {
-            control_print_error(&main->program.error, macro_control_f(control_packet_build));
-          }
-        }
-
-        if (F_status_is_error_not(main->setting.state.status)) {
-          control_packet_send(main);
-
-          if (F_status_is_error(main->setting.state.status)) {
-            control_print_error(&main->program.error, macro_control_f(control_packet_send));
-          }
-        }
-
-        if (F_status_is_error_not(main->setting.state.status)) {
-          control_payload_header_t header = control_payload_header_t_initialize;
-
-          control_packet_receive(main, &header);
-
-          if (F_status_is_error(main->setting.state.status)) {
-            if (F_status_set_fine(main->setting.state.status) == F_too_large) {
-              control_print_error_response_packet_valid_not(&main->program.error);
-            }
-            else {
-              control_print_error(&main->program.error, macro_control_f(control_packet_receive));
-            }
-          }
-          else {
-            control_packet_process(main, &header);
-
-            // Print the error message only if the error message is not already printed.
-            if (F_status_is_error(main->setting.state.status)) {
-              if (header.type != control_payload_type_error_e && (header.type != control_payload_type_controller_e || F_status_set_fine(main->setting.state.status) != header.status || (header.status != F_failure && header.status != F_busy))) {
-                control_print_error(&main->program.error, macro_control_f(control_packet_process));
-              }
-            }
-          }
-        }
-      }
-
-      if (main->setting.socket.id != -1) {
-        f_socket_disconnect(&main->setting.socket, f_socket_close_fast_e);
-      }
-    }
-    else {
-      control_print_error_parameter_actions_none(&main->program.error);
-
-      main->setting.state.status = F_status_set_error(F_data_not);
-    }
-
-    if (F_status_is_error(main->setting.state.status)) return;
-
-    main->setting.state.status = F_okay;
-  }
-#endif // _di_control_main_
-
-#ifdef __cplusplus
-} // extern "C"
-#endif
diff --git a/sources/c/program/control/main/control.h b/sources/c/program/control/main/control.h
index 82e5f2e..6b88ace 100644
--- a/sources/c/program/control/main/control.h
+++ b/sources/c/program/control/main/control.h
@@ -69,32 +69,6 @@
 extern "C" {
 #endif
 
-/**
- * Execute main program.
- *
- * If main.signal is non-zero, then this blocks and handles the following signals:
- *   - F_signal_abort
- *   - F_signal_broken_pipe
- *   - F_signal_hangup
- *   - F_signal_interrupt
- *   - F_signal_quit
- *   - F_signal_termination
- *
- * @param main
- *   The main program data and settings.
- *
- *   This alters main.setting.state.status:
- *     F_okay on success.
- *     F_true on success when performing verification and verify passed.
- *     F_false on success when performing verification and verify failed.
- *
- *     F_interrupt (with error bit) on (exit) signal received.
- *     F_parameter (with error bit) if main is NULL or setting is NULL.
- */
-#ifndef _di_control_main_
-  extern void control_main(control_main_t * const main);
-#endif // _di_control_main_
-
 #ifdef __cplusplus
 } // extern "C"
 #endif
diff --git a/sources/c/program/control/main/main.c b/sources/c/program/control/main/main.c
deleted file mode 100644
index bfde226..0000000
--- a/sources/c/program/control/main/main.c
+++ /dev/null
@@ -1,77 +0,0 @@
-#include "control.h"
-
-int main(const int argc, const f_string_t *argv, const f_string_t *envp) {
-
-  control_main_t data = control_main_t_initialize;
-
-  data.program.debug.flag |= control_print_flag_debug_e | control_print_flag_out_e;
-  data.program.error.flag |= control_print_flag_error_e | control_print_flag_out_e;
-  data.program.output.flag |= control_print_flag_out_e;
-  data.program.message.flag |= control_print_flag_message_e | control_print_flag_out_e;
-  data.program.warning.flag |= control_print_flag_warning_e | control_print_flag_out_e;
-  data.program.error.custom = (void *) &data;
-  data.program.debug.custom = (void *) &data;
-  data.program.message.custom = (void *) &data;
-  data.program.output.custom = (void *) &data;
-  data.program.warning.custom = (void *) &data;
-
-  f_console_parameter_t parameters[] = control_console_parameter_t_initialize;
-
-  data.program.parameters.array = parameters;
-  data.program.parameters.used = control_parameter_total_d;
-  data.program.environment = envp;
-
-  data.setting.socket.domain = f_socket_protocol_family_local_e;
-  data.setting.socket.type = f_socket_type_stream_e;
-  data.setting.socket.length = sizeof(struct sockaddr_un);
-
-  if (f_pipe_input_exists()) {
-    data.program.pipe = fll_program_data_pipe_input_e;
-  }
-
-  fll_program_standard_set_up(&data.program);
-
-  f_file_umask_get(&data.program.umask);
-
-  #ifdef _di_thread_support_
-    {
-      const f_console_arguments_t arguments = macro_f_console_arguments_t_initialize_1(argc, argv, envp);
-
-      control_setting_load(arguments, &data);
-    }
-
-    control_main(&data);
-  #else
-    {
-      f_thread_id_t id_signal;
-
-      memset(&id_signal, 0, sizeof(f_thread_id_t));
-
-      data.setting.state.status = f_thread_create(0, &id_signal, &control_thread_signal, (void *) &data);
-
-      if (F_status_is_error(data.setting.state.status)) {
-        control_print_error(&data.program.error, macro_control_f(f_thread_create));
-      }
-      else {
-        {
-          const f_console_arguments_t arguments = macro_f_console_arguments_t_initialize_1(argc, argv, envp);
-
-          control_setting_load(arguments, &data);
-        }
-
-        if (!control_signal_check(&data)) {
-          control_main(&data);
-        }
-
-        f_thread_cancel(id_signal);
-        f_thread_join(id_signal, 0);
-      }
-    }
-  #endif // _di_thread_support_
-
-  control_main_delete(&data);
-
-  fll_program_standard_set_down(&data.program);
-
-  return (F_status_is_error(data.setting.state.status) || data.setting.state.status == F_false) ? 1 : 0;
-}
diff --git a/sources/c/program/control/main/main.h b/sources/c/program/control/main/main.h
deleted file mode 100644
index f66d83a..0000000
--- a/sources/c/program/control/main/main.h
+++ /dev/null
@@ -1,38 +0,0 @@
-/**
- * FLL - Level 3
- *
- * Project: Control
- * API Version: 0.7
- * Licenses: lgpl-2.1-or-later
- *
- * This file is only ever included by main/main.c and should not normally be included anywhere else.
- * Anything that wants to include this should be providing the "control" program functionality in some manner.
- */
-#ifndef _control_main_main_h
-#define _control_main_main_h
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/**
- * Standard program entry point.
- *
- * @param argc
- *   The number of arguments.
- * @param argv
- *   The array of arguments.
- * @param envp
- *   The array of all environment variables on program start.
- *
- * @return
- *   0 on success.
- *   1 on error.
- */
-extern int main(const int argc, const f_string_t *argv, const f_string_t *envp);
-
-#ifdef __cplusplus
-} // extern "C"
-#endif
-
-#endif // _control_main_main_h
diff --git a/sources/c/program/control/main/packet.c b/sources/c/program/control/main/packet.c
index ddb4ca5..c149dd2 100644
--- a/sources/c/program/control/main/packet.c
+++ b/sources/c/program/control/main/packet.c
@@ -5,7 +5,7 @@ extern "C" {
 #endif
 
 #ifndef _di_control_packet_build_
-  void control_packet_build(control_main_t * const main) {
+  void control_packet_build(control_t * const main) {
 
     if (!main) return;
 
@@ -148,7 +148,7 @@ extern "C" {
 #endif // _di_control_packet_header_length_
 
 #ifndef _di_control_packet_receive_
-  void control_packet_receive(control_main_t * const main, control_payload_header_t * const header) {
+  void control_packet_receive(control_t * const main, control_payload_header_t * const header) {
 
     if (!main || !header) return;
 
@@ -493,7 +493,7 @@ extern "C" {
 #endif // _di_control_packet_receive_
 
 #ifndef _di_control_packet_process_
-  void control_packet_process(control_main_t * const main, control_payload_header_t * const header) {
+  void control_packet_process(control_t * const main, control_payload_header_t * const header) {
 
     if (!main || !header) return;
 
@@ -544,7 +544,7 @@ extern "C" {
 #endif // _di_control_packet_process_
 
 #ifndef _di_control_packet_send_
-  void control_packet_send(control_main_t * const main) {
+  void control_packet_send(control_t * const main) {
 
     if (!main) return;
 
diff --git a/sources/c/program/control/main/packet.h b/sources/c/program/control/main/packet.h
index f5fdefb..2ef8185 100644
--- a/sources/c/program/control/main/packet.h
+++ b/sources/c/program/control/main/packet.h
@@ -38,7 +38,7 @@ extern "C" {
  * @see f_string_dynamic_append()
  */
 #ifndef _di_control_packet_build_
-  extern void control_packet_build(control_main_t * const main);
+  extern void control_packet_build(control_t * const main);
 #endif // _di_control_packet_build_
 
 /**
@@ -107,7 +107,7 @@ extern "C" {
  * @see fll_fss_basic_list_read()
  */
 #ifndef _di_control_packet_receive_
-  extern void control_packet_receive(control_main_t * const main, control_payload_header_t * const header);
+  extern void control_packet_receive(control_t * const main, control_payload_header_t * const header);
 #endif // _di_control_packet_receive_
 
 /**
@@ -128,7 +128,7 @@ extern "C" {
  *   The control payload packet header data.
  */
 #ifndef _di_control_packet_process_
-  extern void control_packet_process(control_main_t * const main, control_payload_header_t * const header);
+  extern void control_packet_process(control_t * const main, control_payload_header_t * const header);
 #endif // _di_control_packet_process_
 
 /**
@@ -145,7 +145,7 @@ extern "C" {
  * @see f_socket_write()
  */
 #ifndef _di_control_packet_send_
-  extern void control_packet_send(control_main_t * const main);
+  extern void control_packet_send(control_t * const main);
 #endif // _di_control_packet_send_
 
 #ifdef __cplusplus
diff --git a/sources/c/program/control/main/print/debug.c b/sources/c/program/control/main/print/debug.c
index aefb4fd..c6f74f3 100644
--- a/sources/c/program/control/main/print/debug.c
+++ b/sources/c/program/control/main/print/debug.c
@@ -27,7 +27,7 @@ extern "C" {
     if (!print || !print->custom) return F_status_set_error(F_output_not);
     if (print->verbosity < f_console_verbosity_debug_e) return F_output_not;
 
-    control_main_t * const main = (control_main_t *) print->custom;
+    control_t * const main = (control_t *) print->custom;
 
     f_file_stream_lock(print->to);
 
diff --git a/sources/c/program/control/main/print/error.c b/sources/c/program/control/main/print/error.c
index 18c9ddb..86a2519 100644
--- a/sources/c/program/control/main/print/error.c
+++ b/sources/c/program/control/main/print/error.c
@@ -10,7 +10,7 @@ extern "C" {
     if (!print || !print->custom) return F_status_set_error(F_output_not);
     if (print->verbosity < f_console_verbosity_error_e) return F_output_not;
 
-    fll_error_print(print, F_status_set_fine(((control_main_t *) print->custom)->setting.state.status), function, fll_error_file_flag_fallback_e);
+    fll_error_print(print, F_status_set_fine(((control_t *) print->custom)->setting.state.status), function, fll_error_file_flag_fallback_e);
 
     return F_okay;
   }
@@ -22,9 +22,7 @@ extern "C" {
     if (!print || !print->custom) return F_status_set_error(F_output_not);
     if (print->verbosity < f_console_verbosity_error_e) return F_output_not;
 
-    control_main_t * const main = (control_main_t *) print->custom;
-
-    fll_error_file_print(print, F_status_set_fine(main->setting.state.status), function, fll_error_file_flag_fallback_e, name, operation, type);
+    fll_error_file_print(print, F_status_set_fine(((control_t *) print->custom)->setting.state.status), function, fll_error_file_flag_fallback_e, name, operation, type);
 
     return F_okay;
   }
@@ -36,7 +34,7 @@ extern "C" {
     if (!print || !print->custom) return F_status_set_error(F_output_not);
     if (print->verbosity < f_console_verbosity_error_e) return F_output_not;
 
-    control_main_t * const main = (control_main_t *) print->custom;
+    control_t * const main = (control_t *) print->custom;
 
     f_file_stream_lock(print->to);
 
@@ -66,7 +64,7 @@ extern "C" {
     if (!print || !print->custom) return F_status_set_error(F_output_not);
     if (print->verbosity < f_console_verbosity_error_e) return F_output_not;
 
-    control_main_t * const main = (control_main_t *) print->custom;
+    control_t * const main = (control_t *) print->custom;
 
     f_file_stream_lock(print->to);
 
@@ -90,17 +88,18 @@ extern "C" {
   }
 #endif // _di_control_print_error_packet_response_failure_
 
-#ifndef _di_control_print_error_parameter_actions_none_
-  f_status_t control_print_error_parameter_actions_none(fl_print_t * const print) {
+#ifndef _di_control_print_error_parameter_action_message_first_
+  f_status_t control_print_error_parameter_action_message_first(fl_print_t * const print, const f_string_static_t action) {
 
     if (!print) return F_status_set_error(F_output_not);
     if (print->verbosity < f_console_verbosity_error_e) return F_output_not;
 
-    fll_print_format("%[%QNo actions provided.%]%r", print->to, print->set->error, print->prefix, print->set->error, f_string_eol_s);
+    fl_print_format("%[%QThe action parameter '%]", print->to, print->set->error, print->prefix, print->set->error);
+    fl_print_format(f_string_format_Q_single_s.string, print->to, print->set->notable, action, print->set->notable);
 
     return F_okay;
   }
-#endif // _di_control_print_error_parameter_actions_none_
+#endif // _di_control_print_error_parameter_action_message_first_
 
 #ifndef _di_control_print_error_parameter_action_not_
   f_status_t control_print_error_parameter_action_not(fl_print_t * const print, const f_string_static_t action) {
@@ -128,8 +127,8 @@ extern "C" {
 
     f_file_stream_lock(print->to);
 
-    fl_print_format("%[%QThe action parameter '%]", print->to, print->set->error, print->prefix, print->set->error);
-    fl_print_format(f_string_format_Q_single_s.string, print->to, print->set->notable, action, print->set->notable);
+    control_print_error_parameter_action_message_first(print, action);
+
     fl_print_format("%[' a rule base name cannot be an empty string.%]%r", print->to, print->set->error, print->set->error, f_string_eol_s);
 
     f_file_stream_unlock(print->to);
@@ -146,8 +145,8 @@ extern "C" {
 
     f_file_stream_lock(print->to);
 
-    fl_print_format("%[%QThe action parameter '%]", print->to, print->set->error, print->prefix, print->set->error);
-    fl_print_format(f_string_format_Q_single_s.string, print->to, print->set->notable, action, print->set->notable);
+    control_print_error_parameter_action_message_first(print, action);
+
     fl_print_format("%[' a rule directory path cannot be an empty string.%]%r", print->to, print->set->error, print->set->error, f_string_eol_s);
 
     f_file_stream_unlock(print->to);
@@ -164,8 +163,8 @@ extern "C" {
 
     f_file_stream_lock(print->to);
 
-    fl_print_format("%[%QThe action parameter '%]", print->to, print->set->error, print->prefix, print->set->error);
-    fl_print_format(f_string_format_Q_single_s.string, print->to, print->set->notable, action, print->set->notable);
+    control_print_error_parameter_action_message_first(print, action);
+
     fl_print_format("%[' a rule name cannot be an empty string.%]%r", print->to, print->set->error, print->set->error, f_string_eol_s);
 
     f_file_stream_unlock(print->to);
@@ -182,8 +181,8 @@ extern "C" {
 
     f_file_stream_lock(print->to);
 
-    fl_print_format("%[%QThe action parameter '%]", print->to, print->set->error, print->prefix, print->set->error);
-    fl_print_format(f_string_format_Q_single_s.string, print->to, print->set->notable, action, print->set->notable);
+    control_print_error_parameter_action_message_first(print, action);
+
     fl_print_format("%[' requires either a full rule name or a rule directory path along with the rule base name.%]%r", print->to, print->set->error, print->set->error, f_string_eol_s);
 
     f_file_stream_unlock(print->to);
@@ -200,8 +199,8 @@ extern "C" {
 
     f_file_stream_lock(print->to);
 
-    fl_print_format("%[%QThe action parameter '%]", print->to, print->set->error, print->prefix, print->set->error);
-    fl_print_format(f_string_format_Q_single_s.string, print->to, print->set->notable, action, print->set->notable);
+    control_print_error_parameter_action_message_first(print, action);
+
     fl_print_format("%[' has too few arguments.%]%r", print->to, print->set->error, print->set->error, f_string_eol_s);
 
     f_file_stream_unlock(print->to);
@@ -218,8 +217,8 @@ extern "C" {
 
     f_file_stream_lock(print->to);
 
-    fl_print_format("%[%QThe action parameter '%]", print->to, print->set->error, print->prefix, print->set->error);
-    fl_print_format(f_string_format_Q_single_s.string, print->to, print->set->notable, action, print->set->notable);
+    control_print_error_parameter_action_message_first(print, action);
+
     fl_print_format("%[' when used with '%]", print->to, print->set->error, print->set->error, f_string_eol_s);
     fl_print_format(f_string_format_Q_single_s.string, print->to, print->set->notable, with, print->set->notable);
     fl_print_format("%[' has too few arguments.%]%r", print->to, print->set->error, print->set->error, f_string_eol_s);
@@ -238,8 +237,8 @@ extern "C" {
 
     f_file_stream_lock(print->to);
 
-    fl_print_format("%[%QThe action parameter '%]", print->to, print->set->error, print->prefix, print->set->error);
-    fl_print_format(f_string_format_Q_single_s.string, print->to, print->set->notable, action, print->set->notable);
+    control_print_error_parameter_action_message_first(print, action);
+
     fl_print_format("%[' has too many arguments.%]%r", print->to, print->set->error, print->set->error, f_string_eol_s);
 
     f_file_stream_unlock(print->to);
@@ -256,8 +255,8 @@ extern "C" {
 
     f_file_stream_lock(print->to);
 
-    fl_print_format("%[%QThe action parameter '%]", print->to, print->set->error, print->prefix, print->set->error);
-    fl_print_format(f_string_format_Q_single_s.string, print->to, print->set->notable, action, print->set->notable);
+    control_print_error_parameter_action_message_first(print, action);
+
     fl_print_format("%[' when used with '%]", print->to, print->set->error, print->set->error, f_string_eol_s);
     fl_print_format(f_string_format_Q_single_s.string, print->to, print->set->notable, with, print->set->notable);
     fl_print_format("%[' has too many arguments.%]%r", print->to, print->set->error, print->set->error, f_string_eol_s);
@@ -276,8 +275,8 @@ extern "C" {
 
     f_file_stream_lock(print->to);
 
-    fl_print_format("%[%QThe action parameter '%]", print->to, print->set->error, print->prefix, print->set->error);
-    fl_print_format(f_string_format_Q_single_s.string, print->to, print->set->notable, action, print->set->notable);
+    control_print_error_parameter_action_message_first(print, action);
+
     fl_print_format("%[' does not know the argument '%]", print->to, print->set->error, print->set->error, f_string_eol_s);
     fl_print_format(f_string_format_Q_single_s.string, print->to, print->set->notable, with, print->set->notable);
     fl_print_format(f_string_format_sentence_end_quote_s.string, print->to, print->set->error, print->set->error, f_string_eol_s);
@@ -288,6 +287,18 @@ extern "C" {
   }
 #endif // _di_control_print_error_parameter_action_rule_with_unknown_
 
+#ifndef _di_control_print_error_parameter_actions_none_
+  f_status_t control_print_error_parameter_actions_none(fl_print_t * const print) {
+
+    if (!print) return F_status_set_error(F_output_not);
+    if (print->verbosity < f_console_verbosity_error_e) return F_output_not;
+
+    fll_print_format("%[%QNo actions provided.%]%r", print->to, print->set->error, print->prefix, print->set->error, f_string_eol_s);
+
+    return F_okay;
+  }
+#endif // _di_control_print_error_parameter_actions_none_
+
 #ifndef _di_control_print_error_parameter_value_empty_
   f_status_t control_print_error_parameter_value_empty(fl_print_t * const print, const f_string_static_t parameter) {
 
diff --git a/sources/c/program/control/main/print/error.h b/sources/c/program/control/main/print/error.h
index 1e8e6b4..4c83e8e 100644
--- a/sources/c/program/control/main/print/error.h
+++ b/sources/c/program/control/main/print/error.h
@@ -110,8 +110,12 @@ extern "C" {
 #ifndef _di_control_print_error_packet_response_failure_
   extern f_status_t control_print_error_packet_response_failure(fl_print_t * const print, const control_payload_header_t header, const f_string_static_t string_status);
 #endif // _di_control_print_error_packet_response_failure_
+
+
 /**
- * Print an error message about no actions being provided.
+ * Helper print function for printing the first part of an action message.
+ *
+ * This does not perform any locking.
  *
  * @param print
  *   The output structure to print to.
@@ -124,9 +128,9 @@ extern "C" {
  *
  *   F_output_not (with error bit) if setting is NULL.
  */
-#ifndef _di_control_print_error_parameter_actions_none_
-  extern f_status_t control_print_error_parameter_actions_none(fl_print_t * const print);
-#endif // _di_control_print_error_parameter_actions_none_
+#ifndef _di_control_print_error_parameter_action_message_first_
+  extern f_status_t control_print_error_parameter_action_message_first(fl_print_t * const print, const f_string_static_t action);
+#endif // _di_control_print_error_parameter_action_message_first_
 
 /**
  * Print an error message about the given parameter not matching the known set of controller actions.
@@ -334,6 +338,24 @@ extern "C" {
 #endif // _di_control_print_error_parameter_action_rule_with_unknown_
 
 /**
+ * Print an error message about no actions being provided.
+ *
+ * @param print
+ *   The output structure to print to.
+ *
+ *   This does not alter print.custom.setting.state.status.
+ *
+ * @return
+ *   F_okay on success.
+ *   F_output_not on success, but no printing is performed.
+ *
+ *   F_output_not (with error bit) if setting is NULL.
+ */
+#ifndef _di_control_print_error_parameter_actions_none_
+  extern f_status_t control_print_error_parameter_actions_none(fl_print_t * const print);
+#endif // _di_control_print_error_parameter_actions_none_
+
+/**
  * Print an error message about the parameter's associated value being an empty string.
  *
  * @param print
diff --git a/sources/c/program/control/main/print/message.c b/sources/c/program/control/main/print/message.c
index ed68aff..8685242 100644
--- a/sources/c/program/control/main/print/message.c
+++ b/sources/c/program/control/main/print/message.c
@@ -50,19 +50,13 @@ extern "C" {
     if (!print || !print->custom) return F_status_set_error(F_output_not);
     if (print->verbosity < f_console_verbosity_normal_e) return F_output_not;
 
-    control_main_t * const main = (control_main_t *) print->custom;
+    control_t * const main = (control_t *) print->custom;
 
     f_file_stream_lock(print->to);
 
     fl_print_format("The action '", print->to);
     fl_print_format(f_string_format_Q_single_s.string, print->to, print->set->notable, control_action_type_name(header.action), print->set->notable);
-
-    if (header.status == F_done) {
-      fl_print_format("' is performed", print->to);
-    }
-    else {
-      fl_print_format("' is successfully performed", print->to);
-    }
+    fl_print_format(header.status == F_done ? "' is performed" : "' is successfully performed", print->to);
 
     if (header.length) {
       fl_print_format(": %/Q%r", print->to, main->cache.large, main->cache.packet_contents.array[main->cache.packet_contents.used - 1].array[0], f_string_eol_s);
diff --git a/sources/c/program/control/main/print/message.h b/sources/c/program/control/main/print/message.h
index 187c7ab..e1e1d03 100644
--- a/sources/c/program/control/main/print/message.h
+++ b/sources/c/program/control/main/print/message.h
@@ -29,17 +29,6 @@ extern "C" {
  *   F_output_not on success, but no printing is performed.
  *
  *   F_output_not (with error bit) if setting is NULL.
- *
- * @see f_file_stream_flush()
- * @see f_file_stream_lock()
- * @see f_file_stream_unlock()
- * @see f_print_dynamic_raw()
- * @see fl_print_format()
- *
- * @see fll_program_print_help_header()
- * @see fll_program_print_help_option()
- * @see fll_program_print_help_option_standard()
- * @see fll_program_print_help_usage()
  */
 #ifndef _di_control_print_message_help_
   extern f_status_t control_print_message_help(fl_print_t * const print);
diff --git a/sources/c/program/control/main/process.c b/sources/c/program/control/main/process.c
index 0c95daf..30dc2e3 100644
--- a/sources/c/program/control/main/process.c
+++ b/sources/c/program/control/main/process.c
@@ -4,6 +4,106 @@
 extern "C" {
 #endif
 
+#ifndef _di_control_process_
+  void control_process(control_t * const main) {
+
+    if (!main || F_status_is_error(main->setting.state.status)) return;
+
+    main->setting.state.status = F_okay;
+
+    if (main->setting.flag & control_main_flag_version_copyright_help_e) {
+      if (main->setting.flag & control_main_flag_help_e) {
+        control_print_message_help(&main->program.message);
+      }
+      else if (main->setting.flag & control_main_flag_version_e) {
+        fll_program_print_version(&main->program.message, control_program_version_s);
+      }
+      else if (main->setting.flag & control_main_flag_copyright_e) {
+        fll_program_print_copyright(&main->program.message, fll_program_copyright_year_author_s);
+      }
+
+      return;
+    }
+
+    if (main->setting.flag & control_main_flag_pipe_e) {
+      control_print_error_pipe_supported_not(&main->program.error);
+
+      main->setting.state.status = F_status_set_error(F_support_not);
+    }
+    else if (main->setting.actions.used) {
+      main->setting.action = control_action_type_identify(main->setting.actions.array[0]);
+
+      if (main->setting.action) {
+        control_action_verify(main);
+      }
+      else {
+        control_print_error_parameter_action_not(&main->program.error, main->setting.actions.array[0]);
+
+        main->setting.state.status = F_status_set_error(F_parameter);
+      }
+
+      if (F_status_is_error_not(main->setting.state.status)) {
+        control_packet_build(main);
+
+        if (F_status_is_error(main->setting.state.status)) {
+          if (F_status_set_fine(main->setting.state.status) == F_too_large) {
+            control_print_error_request_packet_too_large(&main->program.error);
+          }
+          else {
+            control_print_error(&main->program.error, macro_control_f(control_packet_build));
+          }
+        }
+
+        if (F_status_is_error_not(main->setting.state.status)) {
+          control_packet_send(main);
+
+          if (F_status_is_error(main->setting.state.status)) {
+            control_print_error(&main->program.error, macro_control_f(control_packet_send));
+          }
+        }
+
+        if (F_status_is_error_not(main->setting.state.status)) {
+          control_payload_header_t header = control_payload_header_t_initialize;
+
+          control_packet_receive(main, &header);
+
+          if (F_status_is_error(main->setting.state.status)) {
+            if (F_status_set_fine(main->setting.state.status) == F_too_large) {
+              control_print_error_response_packet_valid_not(&main->program.error);
+            }
+            else {
+              control_print_error(&main->program.error, macro_control_f(control_packet_receive));
+            }
+          }
+          else {
+            control_packet_process(main, &header);
+
+            // Print the error message only if the error message is not already printed.
+            if (F_status_is_error(main->setting.state.status)) {
+              if (header.type != control_payload_type_error_e && (header.type != control_payload_type_controller_e || F_status_set_fine(main->setting.state.status) != header.status || (header.status != F_failure && header.status != F_busy))) {
+                control_print_error(&main->program.error, macro_control_f(control_packet_process));
+              }
+            }
+          }
+        }
+      }
+
+      if (main->setting.socket.id != -1) {
+        f_socket_disconnect(&main->setting.socket, f_socket_close_fast_e);
+      }
+    }
+    else {
+      control_print_error_parameter_actions_none(&main->program.error);
+
+      main->setting.state.status = F_status_set_error(F_data_not);
+    }
+
+    if (F_status_is_error(main->setting.state.status)) return;
+
+    main->setting.state.status = F_okay;
+  }
+#endif // _di_control_process_
+
 #ifdef __cplusplus
 } // extern "C"
 #endif
diff --git a/sources/c/program/control/main/process.h b/sources/c/program/control/main/process.h
index 57a80d3..da183d0 100644
--- a/sources/c/program/control/main/process.h
+++ b/sources/c/program/control/main/process.h
@@ -9,15 +9,41 @@
  *
  * This is auto-included and should not need to be explicitly included.
  */
-#ifndef _control_main_process_h
-#define _control_main_process_h
+#ifndef _control_process_h
+#define _control_process_h
 
 #ifdef __cplusplus
 extern "C" {
 #endif
 
+/**
+ * Execute main program.
+ *
+ * If main.signal is non-zero, then this blocks and handles the following signals:
+ *   - F_signal_abort
+ *   - F_signal_broken_pipe
+ *   - F_signal_hangup
+ *   - F_signal_interrupt
+ *   - F_signal_quit
+ *   - F_signal_termination
+ *
+ * @param main
+ *   The main program data and settings.
+ *
+ *   This alters main.setting.state.status:
+ *     F_okay on success.
+ *     F_true on success when performing verification and verify passed.
+ *     F_false on success when performing verification and verify failed.
+ *
+ *     F_interrupt (with error bit) on (exit) signal received.
+ *     F_parameter (with error bit) if main is NULL or setting is NULL.
+ */
+#ifndef _di_control_process_
+  extern void control_process(control_t * const main);
+#endif // _di_control_process_
+
 #ifdef __cplusplus
 } // extern "C"
 #endif
 
-#endif // _control_main_process_h
+#endif // _control_process_h
diff --git a/sources/c/program/control/main/signal.c b/sources/c/program/control/main/signal.c
index 7daac73..442df75 100644
--- a/sources/c/program/control/main/signal.c
+++ b/sources/c/program/control/main/signal.c
@@ -5,7 +5,7 @@ extern "C" {
 #endif
 
 #if !defined(_di_control_signal_check_) && defined(_di_thread_support_)
-  f_status_t control_signal_check(control_main_t * const main) {
+  f_status_t control_signal_check(control_t * const main) {
 
     if (!main || main->program.signal.id == -1) return F_false;
 
@@ -26,7 +26,7 @@ extern "C" {
 #endif // !defined(_di_control_signal_check_) && defined(_di_thread_support_)
 
 #if !defined(_di_control_signal_check_) && !defined(_di_thread_support_)
-  f_status_t control_signal_check(control_main_t * const main) {
+  f_status_t control_signal_check(control_t * const main) {
 
     if (!main || main->program.signal.id == -1) return F_false;
 
@@ -43,7 +43,7 @@ extern "C" {
 #endif // !defined(_di_control_signal_check_) && !defined(_di_thread_support_)
 
 #if !defined(_di_control_signal_handler_) && !defined(_di_thread_support_)
-  void control_signal_handler(control_main_t * const main) {
+  void control_signal_handler(control_t * const main) {
 
     if (!main) return;
 
diff --git a/sources/c/program/control/main/signal.h b/sources/c/program/control/main/signal.h
index 26914d9..a499a49 100644
--- a/sources/c/program/control/main/signal.h
+++ b/sources/c/program/control/main/signal.h
@@ -45,7 +45,7 @@ extern "C" {
  * @see fll_program_standard_signal_received()
  */
 #ifndef _di_control_signal_check_
-  extern f_status_t control_signal_check(control_main_t * const main);
+  extern f_status_t control_signal_check(control_t * const main);
 #endif // _di_control_signal_check_
 
 /**
@@ -76,7 +76,7 @@ extern "C" {
  * @see f_signal_wait()
  */
 #if !defined(_di_control_signal_handler_) && !defined(_di_thread_support_)
-  extern void control_signal_handler(control_main_t * const main);
+  extern void control_signal_handler(control_t * const main);
 #endif // !defined(_di_control_signal_handler_) && !defined(_di_thread_support_)
 
 #ifdef __cplusplus
diff --git a/sources/c/program/control/main/thread.c b/sources/c/program/control/main/thread.c
index c9a44e2..1ce8490 100644
--- a/sources/c/program/control/main/thread.c
+++ b/sources/c/program/control/main/thread.c
@@ -10,7 +10,7 @@ extern "C" {
     f_thread_cancel_state_set(PTHREAD_CANCEL_DEFERRED, 0);
 
     if (main) {
-      control_signal_handler((control_main_t *) main);
+      control_signal_handler((control_t *) main);
     }
 
     return 0;
diff --git a/sources/c/program/control/main/thread.h b/sources/c/program/control/main/thread.h
index f59145c..d842a8d 100644
--- a/sources/c/program/control/main/thread.h
+++ b/sources/c/program/control/main/thread.h
@@ -9,8 +9,8 @@
  *
  * This is auto-included and should not need to be explicitly included.
  */
-#ifndef _control_main_thread_h
-#define _control_main_thread_h
+#ifndef _control_thread_h
+#define _control_thread_h
 
 /**
  * Thread handler for signals/interrupts.
@@ -26,7 +26,7 @@
  * @param main
  *   The program and settings data.
  *
- *   Must be of type control_main_t.
+ *   Must be of type control_t.
  *
  * @return
  *   0, always.
@@ -43,4 +43,4 @@
 } // extern "C"
 #endif
 
-#endif // _control_main_thread_h
+#endif // _control_thread_h