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[GNUnet-SVN] [gnunet] 08/28: getopt major style fix, remove macro-mania


From: gnunet
Subject: [GNUnet-SVN] [gnunet] 08/28: getopt major style fix, remove macro-mania with nicer typed functions
Date: Fri, 17 Mar 2017 12:09:40 +0100

This is an automated email from the git hooks/post-receive script.

grothoff pushed a commit to branch master
in repository gnunet.

commit 30eb0faa8d4894659cc90c76cc634148df86eab9
Author: Christian Grothoff <address@hidden>
AuthorDate: Wed Mar 15 09:39:46 2017 +0100

    getopt major style fix, remove macro-mania with nicer typed functions
---
 po/POTFILES.in                  |  19 +-
 src/include/gnunet_getopt_lib.h | 286 ++++++++++++-------------
 src/util/getopt_helpers.c       | 450 ++++++++++++++++++++++++++++++++++++----
 src/util/gnunet-config.c        |  58 ++++--
 src/util/gnunet-ecc.c           |  56 +++--
 src/util/gnunet-resolver.c      |   9 +-
 src/util/gnunet-scrypt.c        |  41 ++--
 src/util/service.c              |   7 +-
 src/util/service_new.c          |   7 +-
 9 files changed, 652 insertions(+), 281 deletions(-)

diff --git a/po/POTFILES.in b/po/POTFILES.in
index aea7d5ef7..b0fae9dbe 100644
--- a/po/POTFILES.in
+++ b/po/POTFILES.in
@@ -37,31 +37,19 @@ src/block/block.c
 src/block/plugin_block_template.c
 src/block/plugin_block_test.c
 src/cadet/cadet_api.c
-src/cadet/cadet_api_new.c
-src/cadet/cadet_common.c
-src/cadet/cadet_path.c
 src/cadet/cadet_test_lib.c
-src/cadet/cadet_test_lib_new.c
 src/cadet/desirability_table.c
 src/cadet/gnunet-cadet.c
 src/cadet/gnunet-cadet-profiler.c
 src/cadet/gnunet-service-cadet.c
 src/cadet/gnunet-service-cadet_channel.c
 src/cadet/gnunet-service-cadet_connection.c
+src/cadet/gnunet-service-cadet_core.c
 src/cadet/gnunet-service-cadet_dht.c
 src/cadet/gnunet-service-cadet_hello.c
-src/cadet/gnunet-service-cadet_local.c
-src/cadet/gnunet-service-cadet-new.c
-src/cadet/gnunet-service-cadet-new_channel.c
-src/cadet/gnunet-service-cadet-new_connection.c
-src/cadet/gnunet-service-cadet-new_core.c
-src/cadet/gnunet-service-cadet-new_dht.c
-src/cadet/gnunet-service-cadet-new_hello.c
-src/cadet/gnunet-service-cadet-new_paths.c
-src/cadet/gnunet-service-cadet-new_peer.c
-src/cadet/gnunet-service-cadet-new_tunnels.c
+src/cadet/gnunet-service-cadet_paths.c
 src/cadet/gnunet-service-cadet_peer.c
-src/cadet/gnunet-service-cadet_tunnel.c
+src/cadet/gnunet-service-cadet_tunnels.c
 src/consensus/consensus_api.c
 src/consensus/gnunet-consensus-profiler.c
 src/consensus/gnunet-service-consensus.c
@@ -165,7 +153,6 @@ src/fs/gnunet-service-fs_cadet_client.c
 src/fs/gnunet-service-fs_cadet_server.c
 src/fs/gnunet-service-fs_cp.c
 src/fs/gnunet-service-fs_indexing.c
-src/fs/gnunet-service-fs_lc.c
 src/fs/gnunet-service-fs_pe.c
 src/fs/gnunet-service-fs_pr.c
 src/fs/gnunet-service-fs_push.c
diff --git a/src/include/gnunet_getopt_lib.h b/src/include/gnunet_getopt_lib.h
index b04020a70..cd546905e 100644
--- a/src/include/gnunet_getopt_lib.h
+++ b/src/include/gnunet_getopt_lib.h
@@ -97,6 +97,7 @@ typedef int
                                              const char *option,
                                              const char *value);
 
+
 /**
  * @brief Definition of a command line option.
  */
@@ -141,244 +142,215 @@ struct GNUNET_GETOPT_CommandLineOption
 
 };
 
+
 /**
- * Macro defining the option to print the command line
+ * Defining the option to print the command line
  * help text (-h option).
  *
  * @param about string with brief description of the application
  */
-#define GNUNET_GETOPT_OPTION_HELP(about) \
-  { 'h', "help", (const char *) NULL, gettext_noop("print this help"), 0, 
&GNUNET_GETOPT_format_help_, (void *) about }
+struct GNUNET_GETOPT_CommandLineOption
+GNUNET_GETOPT_OPTION_HELP (const char *about);
 
 
 /**
- * Macro defining the option to print the version of
+ * Define the option to print the version of
  * the application (-v option)
  *
  * @param version string with the version number
  */
-#define GNUNET_GETOPT_OPTION_VERSION(version) \
-  { 'v', "version", (const char *) NULL, gettext_noop("print the version 
number"), 0, &GNUNET_GETOPT_print_version_, (void *) version }
+struct GNUNET_GETOPT_CommandLineOption
+GNUNET_GETOPT_OPTION_VERSION (const char *version);
+
 
 
 /**
  * Allow user to specify log file name (-l option)
  *
- * @param logfn set to the name of the logfile
+ * @param[out] logfn set to the name of the logfile
  */
-#define GNUNET_GETOPT_OPTION_LOGFILE(logfn)                            \
-  { 'l', "logfile", "LOGFILE", gettext_noop("configure logging to write logs 
to LOGFILE"), 1, &GNUNET_GETOPT_set_string, (void *) logfn }
+struct GNUNET_GETOPT_CommandLineOption
+GNUNET_GETOPT_OPTION_LOGFILE (char **logfn);
 
 
 /**
- * Allow user to specify log level (-L option)
+ * Allow user to specify a string.
  *
- * @param loglev set to the log level
+ * @param shortName short name of the option
+ * @param name long name of the option
+ * @param argumentHelp help text for the option argument
+ * @param description long help text for the option
+ * @param[out] str set to the string
  */
-#define GNUNET_GETOPT_OPTION_LOGLEVEL(loglev)                          \
-  { 'L', "log", "LOGLEVEL", gettext_noop("configure logging to use LOGLEVEL"), 
1, &GNUNET_GETOPT_set_string, (void *) loglev }
-
+struct GNUNET_GETOPT_CommandLineOption
+GNUNET_GETOPT_OPTION_STRING (char shortName,
+                             const char *name,
+                             const char *argumentHelp,
+                             const char *description,
+                             char **str);
 
 /**
- * Get number of verbose (-V) flags
+ * Allow user to specify a filename (automatically path expanded).
  *
- * @param level where to store the verbosity level (should be an 'int')
+ * @param shortName short name of the option
+ * @param name long name of the option
+ * @param argumentHelp help text for the option argument
+ * @param description long help text for the option
+ * @param[out] str set to the string
  */
-#define GNUNET_GETOPT_OPTION_VERBOSE(level)                            \
-  { 'V', "verbose", (const char *) NULL, gettext_noop("be verbose"), 0, 
&GNUNET_GETOPT_increment_value, (void *) level }
+struct GNUNET_GETOPT_CommandLineOption
+GNUNET_GETOPT_OPTION_FILENAME (char shortName,
+                               const char *name,
+                               const char *argumentHelp,
+                               const char *description,
+                               char **str);
 
 
 /**
- * Get configuration file name (-c option)
+ * Allow user to specify a flag (which internally means setting
+ * an integer to 1/#GNUNET_YES/#GNUNET_OK.
  *
- * @param fn set to the configuration file name
+ * @param shortName short name of the option
+ * @param name long name of the option
+ * @param description long help text for the option
+ * @param[out] val set to 1 if the option is present
  */
-#define GNUNET_GETOPT_OPTION_CFG_FILE(fn)                              \
-  { 'c', "config", "FILENAME", gettext_noop("use configuration file 
FILENAME"), 1, &GNUNET_GETOPT_set_string, (void *) fn }
+struct GNUNET_GETOPT_CommandLineOption
+GNUNET_GETOPT_OPTION_SET_ONE (char shortName,
+                              const char *name,
+                              const char *description,
+                              int *val);
 
 
 /**
- * Marker for the end of the list of options.
+ * Allow user to specify an `unsigned int`.
+ *
+ * @param shortName short name of the option
+ * @param name long name of the option
+ * @param argumentHelp help text for the option argument
+ * @param description long help text for the option
+ * @param[out] val set to the value specified at the command line
  */
-#define GNUNET_GETOPT_OPTION_END \
-  { '\0', NULL, NULL, NULL, 0, NULL, NULL }
+struct GNUNET_GETOPT_CommandLineOption
+GNUNET_GETOPT_OPTION_SET_UINT (char shortName,
+                               const char *name,
+                               const char *argumentHelp,
+                               const char *description,
+                               unsigned int *val);
 
 
 /**
- * Parse the command line.
+ * Allow user to specify an `unsigned long long`.
  *
- * @param binaryOptions Name of application with option summary
- * @param allOptions defined options and handlers
- * @param argc number of arguments in @a argv
- * @param argv actual arguments
- * @return index into argv with first non-option
- *   argument, or #GNUNET_SYSERR on error
+ * @param shortName short name of the option
+ * @param name long name of the option
+ * @param argumentHelp help text for the option argument
+ * @param description long help text for the option
+ * @param[out] val set to the value specified at the command line
  */
-int
-GNUNET_GETOPT_run (const char *binaryOptions,
-                   const struct GNUNET_GETOPT_CommandLineOption *allOptions,
-                   unsigned int argc, char *const *argv);
+struct GNUNET_GETOPT_CommandLineOption
+GNUNET_GETOPT_OPTION_SET_ULONG (char shortName,
+                                const char *name,
+                                const char *argumentHelp,
+                                const char *description,
+                                unsigned long long *val);
 
 
 /**
- * Set an option of type 'unsigned long long' from the command line.
- * A pointer to this function should be passed as part of the
- * `struct GNUNET_GETOPT_CommandLineOption` array to initialize options
- * of this type.  It should be followed by a pointer to a value of
- * type `unsigned long long`.
+ * Allow user to specify a `struct GNUNET_TIME_Relative`
+ * (using human-readable "fancy" time).
  *
- * @param ctx command line processing context
- * @param scls additional closure (will point to the 'unsigned long long')
- * @param option name of the option
- * @param value actual value of the option as a string.
- * @return #GNUNET_OK if parsing the value worked
+ * @param shortName short name of the option
+ * @param name long name of the option
+ * @param argumentHelp help text for the option argument
+ * @param description long help text for the option
+ * @param[out] val set to the time specified at the command line
  */
-int
-GNUNET_GETOPT_set_ulong (struct GNUNET_GETOPT_CommandLineProcessorContext *ctx,
-                         void *scls, const char *option, const char *value);
+struct GNUNET_GETOPT_CommandLineOption
+GNUNET_GETOPT_OPTION_SET_RELATIVE_TIME (char shortName,
+                                        const char *name,
+                                        const char *argumentHelp,
+                                        const char *description,
+                                        struct GNUNET_TIME_Relative *val);
 
 
 /**
- * Set an option of type 'struct GNUNET_TIME_Relative' from the command line.
- * A pointer to this function should be passed as part of the
- * `struct GNUNET_GETOPT_CommandLineOption` array to initialize options
- * of this type.  It should be followed by a pointer to a value of
- * type `struct GNUNET_TIME_Relative`.
+ * Increment @a val each time the option flag is given by one.
  *
- * @param ctx command line processing context
- * @param scls additional closure (will point to the 'struct 
GNUNET_TIME_Relative')
- * @param option name of the option
- * @param value actual value of the option as a string.
- * @return #GNUNET_OK if parsing the value worked
+ * @param shortName short name of the option
+ * @param name long name of the option
+ * @param argumentHelp help text for the option argument
+ * @param description long help text for the option
+ * @param[out] val set to 1 if the option is present
  */
-int
-GNUNET_GETOPT_set_relative_time (struct 
GNUNET_GETOPT_CommandLineProcessorContext *ctx,
-                                void *scls, const char *option, const char 
*value);
+struct GNUNET_GETOPT_CommandLineOption
+GNUNET_GETOPT_OPTION_INCREMENT_VALUE (char shortName,
+                                      const char *name,
+                                      const char *description,
+                                      unsigned int *val);
 
 
 /**
- * Set an option of type 'unsigned int' from the command line.
- * A pointer to this function should be passed as part of the
- * `struct GNUNET_GETOPT_CommandLineOption` array to initialize options
- * of this type.  It should be followed by a pointer to a value of
- * type `unsigned int`.
+ * Define the '-L' log level option.  Note that we do not check
+ * that the log level is valid here.
  *
- * @param ctx command line processing context
- * @param scls additional closure (will point to the 'unsigned int')
- * @param option name of the option
- * @param value actual value of the option as a string.
- * @return #GNUNET_OK if parsing the value worked
+ * @param[out] level set to the log level
  */
-int
-GNUNET_GETOPT_set_uint (struct GNUNET_GETOPT_CommandLineProcessorContext *ctx,
-                        void *scls, const char *option, const char *value);
+struct GNUNET_GETOPT_CommandLineOption
+GNUNET_GETOPT_OPTION_LOGLEVEL (char **level);
 
 
 /**
- * Set an option of type 'int' from the command line to 1 if the
- * given option is present.
- * A pointer to this function should be passed as part of the
- * `struct GNUNET_GETOPT_CommandLineOption` array to initialize options
- * of this type.  It should be followed by a pointer to a value of
- * type `int`.
+ * Define the '-V' verbosity option.  Using the option more
+ * than once increments @a level each time.
  *
- * @param ctx command line processing context
- * @param scls additional closure (will point to the `int`)
- * @param option name of the option
- * @param value not used (NULL)
- * @return #GNUNET_OK (always)
+ * @param[out] level set to the verbosity level
  */
-int
-GNUNET_GETOPT_set_one (struct GNUNET_GETOPT_CommandLineProcessorContext *ctx,
-                       void *scls, const char *option, const char *value);
+struct GNUNET_GETOPT_CommandLineOption
+GNUNET_GETOPT_OPTION_VERBOSE (int *level);
 
 
 /**
- * Set an option of type 'char *' from the command line.
- * A pointer to this function should be passed as part of the
- * `struct GNUNET_GETOPT_CommandLineOption` array to initialize options
- * of this type.  It should be followed by a pointer to a value of
- * type `char *`, which will be allocated with the requested string.
+ * Allow user to specify log file name (-l option)
  *
- * @param ctx command line processing context
- * @param scls additional closure (will point to the `char *`,
- *             which will be allocated)
- * @param option name of the option
- * @param value actual value of the option (a string)
- * @return #GNUNET_OK (always)
+ * @param[out] logfn set to the name of the logfile
  */
-int
-GNUNET_GETOPT_set_string (struct GNUNET_GETOPT_CommandLineProcessorContext 
*ctx,
-                          void *scls, const char *option, const char *value);
+struct GNUNET_GETOPT_CommandLineOption
+GNUNET_GETOPT_OPTION_LOGFILE (char **logfn);
 
 
 /**
- * Set an option of type 'char *' from the command line doing fs expansion.
- * A pointer to this function should be passed as part of the
- * 'struct GNUNET_GETOPT_CommandLineOption' array to initialize options
- * of this type.  It should be followed by a pointer to a value of
- * type 'char *', which will be allocated with the requested string.
+ * Allow user to specify configuration file name (-c option)
  *
- * @param ctx command line processing context
- * @param scls additional closure (will point to the 'char *',
- *             which will be allocated)
- * @param option name of the option
- * @param value actual value of the option (a string)
- * @return #GNUNET_OK (always)
+ * @param[out] fn set to the name of the configuration file
  */
-int
-GNUNET_GETOPT_set_filename (struct GNUNET_GETOPT_CommandLineProcessorContext 
*ctx,
-                            void *scls, const char *option, const char *value);
+struct GNUNET_GETOPT_CommandLineOption
+GNUNET_GETOPT_OPTION_CFG_FILE (char **fn);
+
 
 /**
- * Set an option of type 'unsigned int' from the command line. Each
- * time the option flag is given, the value is incremented by one.
- * A pointer to this function should be passed as part of the
- * 'struct GNUNET_GETOPT_CommandLineOption' array to initialize options
- * of this type.  It should be followed by a pointer to a value of
- * type 'int'.
- *
- * @param ctx command line processing context
- * @param scls additional closure (will point to the 'int')
- * @param option name of the option
- * @param value not used (NULL)
- * @return #GNUNET_OK (always)
+ * Marker for the end of the list of options.
  */
-int
-GNUNET_GETOPT_increment_value (struct GNUNET_GETOPT_CommandLineProcessorContext
-                               *ctx, void *scls, const char *option,
-                               const char *value);
-
+#define GNUNET_GETOPT_OPTION_END \
+  { '\0', NULL, NULL, NULL, 0, NULL, NULL }
 
-/* *************** internal prototypes - use macros above! ************* */
 
 /**
- * Print out details on command line options (implements --help).
+ * Parse the command line.
  *
- * @param ctx command line processing context
- * @param scls additional closure (points to about text)
- * @param option name of the option
- * @param value not used (NULL)
- * @return #GNUNET_NO (do not continue, not an error)
+ * @param binaryOptions Name of application with option summary
+ * @param allOptions defined options and handlers
+ * @param argc number of arguments in @a argv
+ * @param argv actual arguments
+ * @return index into argv with first non-option
+ *   argument, or #GNUNET_SYSERR on error
  */
 int
-GNUNET_GETOPT_format_help_ (struct GNUNET_GETOPT_CommandLineProcessorContext
-                            *ctx, void *scls, const char *option,
-                            const char *value);
+GNUNET_GETOPT_run (const char *binaryOptions,
+                   const struct GNUNET_GETOPT_CommandLineOption *allOptions,
+                   unsigned int argc,
+                   char *const *argv);
 
-/**
- * Print out program version (implements --version).
- *
- * @param ctx command line processing context
- * @param scls additional closure (points to version string)
- * @param option name of the option
- * @param value not used (NULL)
- * @return #GNUNET_NO (do not continue, not an error)
- */
-int
-GNUNET_GETOPT_print_version_ (struct GNUNET_GETOPT_CommandLineProcessorContext
-                              *ctx, void *scls, const char *option,
-                              const char *value);
 
 #if 0                           /* keep Emacsens' auto-indent happy */
 {
diff --git a/src/util/getopt_helpers.c b/src/util/getopt_helpers.c
index 4d7104503..234f5371f 100644
--- a/src/util/getopt_helpers.c
+++ b/src/util/getopt_helpers.c
@@ -38,11 +38,11 @@
  * @param value not used (NULL)
  * @return #GNUNET_NO (do not continue, not an error)
  */
-int
-GNUNET_GETOPT_print_version_ (struct GNUNET_GETOPT_CommandLineProcessorContext 
*ctx,
-                             void *scls,
-                             const char *option,
-                              const char *value)
+static int
+print_version (struct GNUNET_GETOPT_CommandLineProcessorContext *ctx,
+               void *scls,
+               const char *option,
+               const char *value)
 {
   const char *version = scls;
 
@@ -54,6 +54,26 @@ GNUNET_GETOPT_print_version_ (struct 
GNUNET_GETOPT_CommandLineProcessorContext *
 
 
 /**
+ * Define the option to print the version of
+ * the application (-v option)
+ *
+ * @param version string with the version number
+ */
+struct GNUNET_GETOPT_CommandLineOption
+GNUNET_GETOPT_OPTION_VERSION (const char *version)
+{
+  struct GNUNET_GETOPT_CommandLineOption clo = {
+    .shortName =  'v',
+    .name = "version",
+    .description = gettext_noop("print the version number"),
+    .processor = &print_version,
+    .scls = (void *) version
+  };
+  return clo;
+}
+
+
+/**
  * At what offset does the help text start?
  */
 #define BORDER 29
@@ -67,11 +87,11 @@ GNUNET_GETOPT_print_version_ (struct 
GNUNET_GETOPT_CommandLineProcessorContext *
  * @param value not used (NULL)
  * @return #GNUNET_NO (do not continue, not an error)
  */
-int
-GNUNET_GETOPT_format_help_ (struct GNUNET_GETOPT_CommandLineProcessorContext 
*ctx,
-                           void *scls,
-                           const char *option,
-                            const char *value)
+static int
+format_help (struct GNUNET_GETOPT_CommandLineProcessorContext *ctx,
+             void *scls,
+             const char *option,
+             const char *value)
 {
   const char *about = scls;
   size_t slen;
@@ -165,6 +185,27 @@ OUTER:
 
 
 /**
+ * Defining the option to print the command line
+ * help text (-h option).
+ *
+ * @param about string with brief description of the application
+ */
+struct GNUNET_GETOPT_CommandLineOption
+GNUNET_GETOPT_OPTION_HELP (const char *about)
+{
+  struct GNUNET_GETOPT_CommandLineOption clo = {
+    .shortName = 'h',
+    .name = "help",
+    .description = gettext_noop("print this help"),
+    .processor = format_help,
+    .scls = (void *) about
+  };
+
+  return clo;
+}
+
+
+/**
  * Set an option of type 'unsigned int' from the command line. Each
  * time the option flag is given, the value is incremented by one.
  * A pointer to this function should be passed as part of the
@@ -173,17 +214,18 @@ OUTER:
  * type 'int'.
  *
  * @param ctx command line processing context
- * @param scls additional closure (will point to the 'int')
+ * @param scls additional closure (will point to the 'unsigned int')
  * @param option name of the option
  * @param value not used (NULL)
  * @return #GNUNET_OK
  */
-int
-GNUNET_GETOPT_increment_value (struct GNUNET_GETOPT_CommandLineProcessorContext
-                               *ctx, void *scls, const char *option,
-                               const char *value)
+static int
+increment_value (struct GNUNET_GETOPT_CommandLineProcessorContext *ctx,
+                 void *scls,
+                 const char *option,
+                 const char *value)
 {
-  int *val = scls;
+  unsigned int *val = scls;
 
   (*val)++;
   return GNUNET_OK;
@@ -191,6 +233,54 @@ GNUNET_GETOPT_increment_value (struct 
GNUNET_GETOPT_CommandLineProcessorContext
 
 
 /**
+ * Increment @a val each time the option flag is given by one.
+ *
+ * @param shortName short name of the option
+ * @param name long name of the option
+ * @param argumentHelp help text for the option argument
+ * @param description long help text for the option
+ * @param[out] val increment by 1 each time the option is present
+ */
+struct GNUNET_GETOPT_CommandLineOption
+GNUNET_GETOPT_OPTION_INCREMENT_VALUE (char shortName,
+                                      const char *name,
+                                      const char *description,
+                                      unsigned int *val)
+{
+  struct GNUNET_GETOPT_CommandLineOption clo = {
+    .shortName =  shortName,
+    .name = name,
+    .description = description,
+    .processor = &increment_value,
+    .scls = (void *) val
+  };
+
+  return clo;
+}
+
+
+/**
+ * Define the '-V' verbosity option.  Using the option more
+ * than once increments @a level each time.
+ *
+ * @param[out] level set to the verbosity level
+ */
+struct GNUNET_GETOPT_CommandLineOption
+GNUNET_GETOPT_OPTION_VERBOSE (int *level)
+{
+  struct GNUNET_GETOPT_CommandLineOption clo = {
+    .shortName = 'V',
+    .name = "verbose",
+    .description = gettext_noop("be verbose"),
+    .processor = &increment_value,
+    .scls = (void *) level
+  };
+
+  return clo;
+}
+
+
+/**
  * Set an option of type 'int' from the command line to 1 if the
  * given option is present.
  * A pointer to this function should be passed as part of the
@@ -204,9 +294,11 @@ GNUNET_GETOPT_increment_value (struct 
GNUNET_GETOPT_CommandLineProcessorContext
  * @param value not used (NULL)
  * @return #GNUNET_OK
  */
-int
-GNUNET_GETOPT_set_one (struct GNUNET_GETOPT_CommandLineProcessorContext *ctx,
-                       void *scls, const char *option, const char *value)
+static int
+set_one (struct GNUNET_GETOPT_CommandLineProcessorContext *ctx,
+         void *scls,
+         const char *option,
+         const char *value)
 {
   int *val = scls;
 
@@ -216,6 +308,34 @@ GNUNET_GETOPT_set_one (struct 
GNUNET_GETOPT_CommandLineProcessorContext *ctx,
 
 
 /**
+ * Allow user to specify a flag (which internally means setting
+ * an integer to 1/#GNUNET_YES/#GNUNET_OK.
+ *
+ * @param shortName short name of the option
+ * @param name long name of the option
+ * @param argumentHelp help text for the option argument
+ * @param description long help text for the option
+ * @param[out] val set to 1 if the option is present
+ */
+struct GNUNET_GETOPT_CommandLineOption
+GNUNET_GETOPT_OPTION_SET_ONE (char shortName,
+                              const char *name,
+                              const char *description,
+                              int *val)
+{
+  struct GNUNET_GETOPT_CommandLineOption clo = {
+    .shortName =  shortName,
+    .name = name,
+    .description = description,
+    .processor = &set_one,
+    .scls = (void *) val
+  };
+
+  return clo;
+}
+
+
+/**
  * Set an option of type 'char *' from the command line.
  * A pointer to this function should be passed as part of the
  * 'struct GNUNET_GETOPT_CommandLineOption' array to initialize options
@@ -229,9 +349,11 @@ GNUNET_GETOPT_set_one (struct 
GNUNET_GETOPT_CommandLineProcessorContext *ctx,
  * @param value actual value of the option (a string)
  * @return #GNUNET_OK
  */
-int
-GNUNET_GETOPT_set_string (struct GNUNET_GETOPT_CommandLineProcessorContext 
*ctx,
-                          void *scls, const char *option, const char *value)
+static int
+set_string (struct GNUNET_GETOPT_CommandLineProcessorContext *ctx,
+            void *scls,
+            const char *option,
+            const char *value)
 {
   char **val = scls;
 
@@ -242,18 +364,159 @@ GNUNET_GETOPT_set_string (struct 
GNUNET_GETOPT_CommandLineProcessorContext *ctx,
 }
 
 
-int
-GNUNET_GETOPT_set_filename (struct GNUNET_GETOPT_CommandLineProcessorContext 
*ctx,
-                            void *scls, const char *option, const char *value)
+/**
+ * Allow user to specify a string.
+ *
+ * @param shortName short name of the option
+ * @param name long name of the option
+ * @param argumentHelp help text for the option argument
+ * @param description long help text for the option
+ * @param[out] str set to the string
+ */
+struct GNUNET_GETOPT_CommandLineOption
+GNUNET_GETOPT_OPTION_STRING (char shortName,
+                             const char *name,
+                             const char *argumentHelp,
+                             const char *description,
+                             char **str)
+{
+  struct GNUNET_GETOPT_CommandLineOption clo = {
+    .shortName =  shortName,
+    .name = name,
+    .argumentHelp = argumentHelp,
+    .description = description,
+    .require_argument = 1,
+    .processor = &set_string,
+    .scls = (void *) str
+  };
+
+  return clo;
+}
+
+
+/**
+ * Define the '-L' log level option.  Note that we do not check
+ * that the log level is valid here.
+ *
+ * @param[out] level set to the log level
+ */
+struct GNUNET_GETOPT_CommandLineOption
+GNUNET_GETOPT_OPTION_LOGLEVEL (char **level)
+{
+  struct GNUNET_GETOPT_CommandLineOption clo = {
+    .shortName = 'L',
+    .name = "log",
+    .argumentHelp = "LOGLEVEL",
+    .description = gettext_noop("configure logging to use LOGLEVEL"),
+    .require_argument = 1,
+    .processor = &set_string,
+    .scls = (void *) level
+  };
+
+  return clo;
+}
+
+
+/**
+ * Set an option of type 'char *' from the command line with
+ * filename expansion a la #GNUNET_STRINGS_filename_expand().
+ *
+ * @param ctx command line processing context
+ * @param scls additional closure (will point to the `char *`,
+ *             which will be allocated)
+ * @param option name of the option
+ * @param value actual value of the option (a string)
+ * @return #GNUNET_OK
+ */
+static int
+set_filename (struct GNUNET_GETOPT_CommandLineProcessorContext *ctx,
+              void *scls,
+              const char *option,
+              const char *value)
 {
   char **val = scls;
 
-  GNUNET_assert (value != NULL);
+  GNUNET_assert (NULL != value);
   GNUNET_free_non_null (*val);
   *val = GNUNET_STRINGS_filename_expand (value);
   return GNUNET_OK;
 }
 
+
+/**
+ * Allow user to specify a filename (automatically path expanded).
+ *
+ * @param shortName short name of the option
+ * @param name long name of the option
+ * @param argumentHelp help text for the option argument
+ * @param description long help text for the option
+ * @param[out] str set to the string
+ */
+struct GNUNET_GETOPT_CommandLineOption
+GNUNET_GETOPT_OPTION_FILENAME (char shortName,
+                             const char *name,
+                             const char *argumentHelp,
+                             const char *description,
+                             char **str)
+{
+  struct GNUNET_GETOPT_CommandLineOption clo = {
+    .shortName =  shortName,
+    .name = name,
+    .argumentHelp = argumentHelp,
+    .description = description,
+    .require_argument = 1,
+    .processor = &set_filename,
+    .scls = (void *) str
+  };
+
+  return clo;
+}
+
+
+/**
+ * Allow user to specify log file name (-l option)
+ *
+ * @param[out] logfn set to the name of the logfile
+ */
+struct GNUNET_GETOPT_CommandLineOption
+GNUNET_GETOPT_OPTION_LOGFILE (char **logfn)
+{
+  struct GNUNET_GETOPT_CommandLineOption clo = {
+    .shortName =  'l',
+    .name = "logfile",
+    .argumentHelp = "FILENAME",
+    .description = gettext_noop ("configure logging to write logs to 
FILENAME"),
+    .require_argument = 1,
+    .processor = &set_filename,
+    .scls = (void *) logfn
+  };
+
+  return clo;
+}
+
+
+/**
+ * Allow user to specify configuration file name (-c option)
+ *
+ * @param[out] fn set to the name of the configuration file
+ */
+struct GNUNET_GETOPT_CommandLineOption
+GNUNET_GETOPT_OPTION_CFG_FILE (char **fn)
+{
+  struct GNUNET_GETOPT_CommandLineOption clo = {
+    .shortName =  'c',
+    .name = "config",
+    .argumentHelp = "FILENAME",
+    .description = gettext_noop("use configuration file FILENAME"),
+    .require_argument = 1,
+    .processor = &set_filename,
+    .scls = (void *) fn
+  };
+
+  return clo;
+}
+
+
 /**
  * Set an option of type 'unsigned long long' from the command line.
  * A pointer to this function should be passed as part of the
@@ -267,15 +530,21 @@ GNUNET_GETOPT_set_filename (struct 
GNUNET_GETOPT_CommandLineProcessorContext *ct
  * @param value actual value of the option as a string.
  * @return #GNUNET_OK if parsing the value worked
  */
-int
-GNUNET_GETOPT_set_ulong (struct GNUNET_GETOPT_CommandLineProcessorContext *ctx,
-                         void *scls, const char *option, const char *value)
+static int
+set_ulong (struct GNUNET_GETOPT_CommandLineProcessorContext *ctx,
+           void *scls,
+           const char *option,
+           const char *value)
 {
   unsigned long long *val = scls;
 
-  if (1 != SSCANF (value, "%llu", val))
+  if (1 != SSCANF (value,
+                   "%llu",
+                   val))
   {
-    FPRINTF (stderr, _("You must pass a number to the `%s' option.\n"), 
option);
+    FPRINTF (stderr,
+             _("You must pass a number to the `%s' option.\n"),
+             option);
     return GNUNET_SYSERR;
   }
   return GNUNET_OK;
@@ -283,6 +552,36 @@ GNUNET_GETOPT_set_ulong (struct 
GNUNET_GETOPT_CommandLineProcessorContext *ctx,
 
 
 /**
+ * Allow user to specify an `unsigned long long`
+ *
+ * @param shortName short name of the option
+ * @param name long name of the option
+ * @param argumentHelp help text for the option argument
+ * @param description long help text for the option
+ * @param[out] val set to the value specified at the command line
+ */
+struct GNUNET_GETOPT_CommandLineOption
+GNUNET_GETOPT_OPTION_SET_ULONG (char shortName,
+                                const char *name,
+                                const char *argumentHelp,
+                                const char *description,
+                                unsigned long long *val)
+{
+  struct GNUNET_GETOPT_CommandLineOption clo = {
+    .shortName =  shortName,
+    .name = name,
+    .argumentHelp = argumentHelp,
+    .description = description,
+    .require_argument = 1,
+    .processor = &set_ulong,
+    .scls = (void *) val
+  };
+
+  return clo;
+}
+
+
+/**
  * Set an option of type 'struct GNUNET_TIME_Relative' from the command line.
  * A pointer to this function should be passed as part of the
  * 'struct GNUNET_GETOPT_CommandLineOption' array to initialize options
@@ -295,9 +594,11 @@ GNUNET_GETOPT_set_ulong (struct 
GNUNET_GETOPT_CommandLineProcessorContext *ctx,
  * @param value actual value of the option as a string.
  * @return #GNUNET_OK if parsing the value worked
  */
-int
-GNUNET_GETOPT_set_relative_time (struct 
GNUNET_GETOPT_CommandLineProcessorContext *ctx,
-                                void *scls, const char *option, const char 
*value)
+static int
+set_relative_time (struct GNUNET_GETOPT_CommandLineProcessorContext *ctx,
+                   void *scls,
+                   const char *option,
+                   const char *value)
 {
   struct GNUNET_TIME_Relative *val = scls;
 
@@ -305,7 +606,9 @@ GNUNET_GETOPT_set_relative_time (struct 
GNUNET_GETOPT_CommandLineProcessorContex
       GNUNET_STRINGS_fancy_time_to_relative (value,
                                             val))
   {
-    FPRINTF (stderr, _("You must pass relative time to the `%s' option.\n"), 
option);
+    FPRINTF (stderr,
+             _("You must pass relative time to the `%s' option.\n"),
+             option);
     return GNUNET_SYSERR;
   }
   return GNUNET_OK;
@@ -313,6 +616,37 @@ GNUNET_GETOPT_set_relative_time (struct 
GNUNET_GETOPT_CommandLineProcessorContex
 
 
 /**
+ * Allow user to specify a `struct GNUNET_TIME_Relative`
+ * (using human-readable "fancy" time).
+ *
+ * @param shortName short name of the option
+ * @param name long name of the option
+ * @param argumentHelp help text for the option argument
+ * @param description long help text for the option
+ * @param[out] val set to the time specified at the command line
+ */
+struct GNUNET_GETOPT_CommandLineOption
+GNUNET_GETOPT_OPTION_SET_RELATIVE_TIME (char shortName,
+                                        const char *name,
+                                        const char *argumentHelp,
+                                        const char *description,
+                                        struct GNUNET_TIME_Relative *val)
+{
+  struct GNUNET_GETOPT_CommandLineOption clo = {
+    .shortName =  shortName,
+    .name = name,
+    .argumentHelp = argumentHelp,
+    .description = description,
+    .require_argument = 1,
+    .processor = &set_relative_time,
+    .scls = (void *) val
+  };
+
+  return clo;
+}
+
+
+/**
  * Set an option of type 'unsigned int' from the command line.
  * A pointer to this function should be passed as part of the
  * 'struct GNUNET_GETOPT_CommandLineOption' array to initialize options
@@ -325,19 +659,55 @@ GNUNET_GETOPT_set_relative_time (struct 
GNUNET_GETOPT_CommandLineProcessorContex
  * @param value actual value of the option as a string.
  * @return #GNUNET_OK if parsing the value worked
  */
-int
-GNUNET_GETOPT_set_uint (struct GNUNET_GETOPT_CommandLineProcessorContext *ctx,
-                        void *scls, const char *option, const char *value)
+static int
+set_uint (struct GNUNET_GETOPT_CommandLineProcessorContext *ctx,
+          void *scls,
+          const char *option,
+          const char *value)
 {
   unsigned int *val = scls;
 
-  if (1 != SSCANF (value, "%u", val))
+  if (1 != SSCANF (value,
+                   "%u",
+                   val))
   {
-    FPRINTF (stderr, _("You must pass a number to the `%s' option.\n"), 
option);
+    FPRINTF (stderr,
+             _("You must pass a number to the `%s' option.\n"),
+             option);
     return GNUNET_SYSERR;
   }
   return GNUNET_OK;
 }
 
 
+/**
+ * Allow user to specify an unsigned integer.
+ *
+ * @param shortName short name of the option
+ * @param name long name of the option
+ * @param argumentHelp help text for the option argument
+ * @param description long help text for the option
+ * @param[out] val set to the value specified at the command line
+ */
+struct GNUNET_GETOPT_CommandLineOption
+GNUNET_GETOPT_OPTION_SET_UINT (char shortName,
+                               const char *name,
+                               const char *argumentHelp,
+                               const char *description,
+                               unsigned int *val)
+{
+  struct GNUNET_GETOPT_CommandLineOption clo = {
+    .shortName =  shortName,
+    .name = name,
+    .argumentHelp = argumentHelp,
+    .description = description,
+    .require_argument = 1,
+    .processor = &set_uint,
+    .scls = (void *) val
+  };
+
+  return clo;
+}
+
+
 /* end of getopt_helpers.c */
diff --git a/src/util/gnunet-config.c b/src/util/gnunet-config.c
index 7ec7162f1..2beb772a9 100644
--- a/src/util/gnunet-config.c
+++ b/src/util/gnunet-config.c
@@ -223,34 +223,48 @@ run (void *cls,
 int
 main (int argc, char *const *argv)
 {
-  static const struct GNUNET_GETOPT_CommandLineOption options[] = {
-    { 'f', "filename", NULL,
-      gettext_noop ("obtain option of value as a filename (with $-expansion)"),
-      0, &GNUNET_GETOPT_set_one, &is_filename },
-    { 's', "section", "SECTION",
-      gettext_noop ("name of the section to access"),
-      1, &GNUNET_GETOPT_set_string, &section },
-    { 'o', "option", "OPTION",
-      gettext_noop ("name of the option to access"),
-      1, &GNUNET_GETOPT_set_string, &option },
-    { 'V', "value", "VALUE",
-      gettext_noop ("value to set"),
-      1, &GNUNET_GETOPT_set_string, &value },
-    { 'S', "list-sections", NULL,
-      gettext_noop ("print available configuration sections"),
-      0, &GNUNET_GETOPT_set_one, &list_sections },
-    { 'w', "rewrite", NULL,
-      gettext_noop ("write configuration file that only contains delta to 
defaults"),
-      0, &GNUNET_GETOPT_set_one, &rewrite },
+  struct GNUNET_GETOPT_CommandLineOption options[] = {
+    GNUNET_GETOPT_OPTION_SET_ONE ('f',
+                                  "filename",
+                                  gettext_noop ("obtain option of value as a 
filename (with $-expansion)"),
+                                  &is_filename),
+    GNUNET_GETOPT_OPTION_STRING ('s',
+                                     "section",
+                                     "SECTION",
+                                     gettext_noop ("name of the section to 
access"),
+                                     &section),
+    GNUNET_GETOPT_OPTION_STRING ('o',
+                                     "option",
+                                     "OPTION",
+                                     gettext_noop ("name of the option to 
access"),
+                                     &option),
+    GNUNET_GETOPT_OPTION_STRING ('V',
+                                     "value",
+                                     "VALUE",
+                                     gettext_noop ("value to set"),
+                                     &value),
+    GNUNET_GETOPT_OPTION_SET_ONE ('S',
+                                  "list-sections",
+                                  gettext_noop ("print available configuration 
sections"),
+                                  &list_sections),
+    GNUNET_GETOPT_OPTION_SET_ONE ('w',
+                                  "rewrite",
+                                  gettext_noop ("write configuration file that 
only contains delta to defaults"),
+                                  &rewrite),
     GNUNET_GETOPT_OPTION_END
   };
-  if (GNUNET_OK != GNUNET_STRINGS_get_utf8_args (argc, argv, &argc, &argv))
+  if (GNUNET_OK !=
+      GNUNET_STRINGS_get_utf8_args (argc, argv,
+                                    &argc, &argv))
     return 2;
 
   ret = (GNUNET_OK ==
-        GNUNET_PROGRAM_run (argc, argv, "gnunet-config [OPTIONS]",
+        GNUNET_PROGRAM_run (argc,
+                             argv,
+                             "gnunet-config [OPTIONS]",
                             gettext_noop ("Manipulate GNUnet configuration 
files"),
-                            options, &run, NULL)) ? 0 : ret;
+                            options,
+                             &run, NULL)) ? 0 : ret;
   GNUNET_free ((void*) argv);
   return ret;
 }
diff --git a/src/util/gnunet-ecc.c b/src/util/gnunet-ecc.c
index ddfd9b1c3..732228b52 100644
--- a/src/util/gnunet-ecc.c
+++ b/src/util/gnunet-ecc.c
@@ -41,7 +41,7 @@ static int list_keys;
 /**
  * Flag for listing public key.
  */
-static int list_keys_count;
+static unsigned int list_keys_count;
 
 /**
  * Flag for printing public key.
@@ -406,36 +406,50 @@ run (void *cls, char *const *args, const char *cfgfile,
  * @return 0 ok, 1 on error
  */
 int
-main (int argc, char *const *argv)
+main (int argc,
+      char *const *argv)
 {
   list_keys_count = UINT32_MAX;
-  static const struct GNUNET_GETOPT_CommandLineOption options[] = {
-    { 'i', "iterate", "FILE",
-      gettext_noop ("list keys included in a file (for testing)"),
-      0, &GNUNET_GETOPT_set_one, &list_keys },
-    { 'e', "end=", "COUNT",
-      gettext_noop ("number of keys to list included in a file (for testing)"),
-      1, &GNUNET_GETOPT_set_uint, &list_keys_count },
-    { 'g', "generate-keys", "COUNT",
-      gettext_noop ("create COUNT public-private key pairs (for testing)"),
-      1, &GNUNET_GETOPT_set_uint, &make_keys },
-    { 'p', "print-public-key", NULL,
-      gettext_noop ("print the public key in ASCII format"),
-      0, &GNUNET_GETOPT_set_one, &print_public_key },
-    { 'E', "examples", NULL,
-      gettext_noop ("print examples of ECC operations (used for compatibility 
testing)"),
-      0, &GNUNET_GETOPT_set_one, &print_examples_flag },
+  struct GNUNET_GETOPT_CommandLineOption options[] = {
+    GNUNET_GETOPT_OPTION_SET_ONE ('i',
+                                  "iterate",
+                                  gettext_noop ("list keys included in a file 
(for testing)"),
+                                  &list_keys),
+    GNUNET_GETOPT_OPTION_SET_UINT ('e',
+                                   "end=",
+                                   "COUNT",
+                                   gettext_noop ("number of keys to list 
included in a file (for testing)"),
+                                   &list_keys_count),
+    GNUNET_GETOPT_OPTION_SET_UINT ('g',
+                                   "generate-keys",
+                                   "COUNT",
+                                   gettext_noop ("create COUNT public-private 
key pairs (for testing)"),
+                                   &make_keys),
+    GNUNET_GETOPT_OPTION_SET_ONE ('p',
+                                  "print-public-key",
+                                  gettext_noop ("print the public key in ASCII 
format"),
+                                  &print_public_key),
+    GNUNET_GETOPT_OPTION_SET_ONE ('E',
+                                  "examples",
+                                  gettext_noop ("print examples of ECC 
operations (used for compatibility testing)"),
+                                  &print_examples_flag),
     GNUNET_GETOPT_OPTION_END
   };
   int ret;
 
-  if (GNUNET_OK != GNUNET_STRINGS_get_utf8_args (argc, argv, &argc, &argv))
+  if (GNUNET_OK !=
+      GNUNET_STRINGS_get_utf8_args (argc, argv,
+                                    &argc, &argv))
     return 2;
 
   ret = (GNUNET_OK ==
-        GNUNET_PROGRAM_run (argc, argv, "gnunet-ecc [OPTIONS] keyfile 
[VANITY_PREFIX]",
+        GNUNET_PROGRAM_run (argc,
+                             argv,
+                             "gnunet-ecc [OPTIONS] keyfile [VANITY_PREFIX]",
                             gettext_noop ("Manipulate GNUnet private ECC key 
files"),
-                            options, &run, NULL)) ? 0 : 1;
+                            options,
+                             &run,
+                             NULL)) ? 0 : 1;
   GNUNET_free ((void*) argv);
   return ret;
 }
diff --git a/src/util/gnunet-resolver.c b/src/util/gnunet-resolver.c
index e84a2332f..563cf9fce 100644
--- a/src/util/gnunet-resolver.c
+++ b/src/util/gnunet-resolver.c
@@ -144,10 +144,11 @@ run (void *cls, char *const *args, const char *cfgfile,
 int
 main (int argc, char *const *argv)
 {
-  static const struct GNUNET_GETOPT_CommandLineOption options[] = {
-    { 'r', "reverse", NULL,
-      gettext_noop ("perform a reverse lookup"),
-      0, &GNUNET_GETOPT_set_one, &reverse },
+  struct GNUNET_GETOPT_CommandLineOption options[] = {
+    GNUNET_GETOPT_OPTION_SET_ONE ('r',
+                                  "reverse",
+                                  gettext_noop ("perform a reverse lookup"),
+                                  &reverse),
     GNUNET_GETOPT_OPTION_END
   };
   int ret;
diff --git a/src/util/gnunet-scrypt.c b/src/util/gnunet-scrypt.c
index ab0cf92e0..7c73cfe1e 100644
--- a/src/util/gnunet-scrypt.c
+++ b/src/util/gnunet-scrypt.c
@@ -307,21 +307,30 @@ run (void *cls,
  * @return 0 ok, 1 on error
  */
 int
-main (int argc, char *const *argv)
+main (int argc,
+      char *const *argv)
 {
-  static const struct GNUNET_GETOPT_CommandLineOption options[] = {
-    { 'b', "bits", "BITS",
-      gettext_noop ("number of bits to require for the proof of work"),
-      1, &GNUNET_GETOPT_set_ulong, &nse_work_required },
-    { 'k', "keyfile", "FILE",
-      gettext_noop ("file with private key, otherwise default is used"),
-      1, &GNUNET_GETOPT_set_filename, &pkfn },
-    { 'o', "outfile", "FILE",
-      gettext_noop ("file with proof of work, otherwise default is used"),
-      1, &GNUNET_GETOPT_set_filename, &pwfn },
-    { 't', "timeout", "TIME",
-      gettext_noop ("time to wait between calculations"),
-      1, &GNUNET_GETOPT_set_relative_time, &proof_find_delay },
+  struct GNUNET_GETOPT_CommandLineOption options[] = {
+    GNUNET_GETOPT_OPTION_SET_ULONG ('b',
+                                    "bits",
+                                    "BITS",
+                                    gettext_noop ("number of bits to require 
for the proof of work"),
+                                    &nse_work_required),
+    GNUNET_GETOPT_OPTION_FILENAME ('k',
+                                   "keyfile",
+                                   "FILE",
+                                   gettext_noop ("file with private key, 
otherwise default is used"),
+                                   &pkfn),
+    GNUNET_GETOPT_OPTION_FILENAME ('o',
+                                   "outfile",
+                                   "FILE",
+                                   gettext_noop ("file with proof of work, 
otherwise default is used"),
+                                   &pwfn),
+    GNUNET_GETOPT_OPTION_SET_RELATIVE_TIME ('t',
+                                            "timeout",
+                                            "TIME",
+                                            gettext_noop ("time to wait 
between calculations"),
+                                            &proof_find_delay),
     GNUNET_GETOPT_OPTION_END
   };
   int ret;
@@ -334,7 +343,9 @@ main (int argc, char *const *argv)
          GNUNET_PROGRAM_run (argc, argv,
                              "gnunet-scrypt [OPTIONS] prooffile",
                              gettext_noop ("Manipulate GNUnet proof of work 
files"),
-                             options, &run, NULL)) ? 0 : 1;
+                             options,
+                             &run,
+                             NULL)) ? 0 : 1;
   GNUNET_free ((void*) argv);
   GNUNET_free_non_null (pwfn);
   return ret;
diff --git a/src/util/service.c b/src/util/service.c
index 496904fb1..d1dffa139 100644
--- a/src/util/service.c
+++ b/src/util/service.c
@@ -1402,9 +1402,10 @@ GNUNET_SERVICE_run (int argc, char *const *argv,
 
   struct GNUNET_GETOPT_CommandLineOption service_options[] = {
     GNUNET_GETOPT_OPTION_CFG_FILE (&opt_cfg_fn),
-    {'d', "daemonize", NULL,
-     gettext_noop ("do daemonize (detach from terminal)"), 0,
-     GNUNET_GETOPT_set_one, &do_daemonize},
+    GNUNET_GETOPT_OPTION_SET_ONE ('d',
+                                  "daemonize",
+                                  gettext_noop ("do daemonize (detach from 
terminal)"),
+                                  &do_daemonize),
     GNUNET_GETOPT_OPTION_HELP (NULL),
     GNUNET_GETOPT_OPTION_LOGLEVEL (&loglev),
     GNUNET_GETOPT_OPTION_LOGFILE (&logfile),
diff --git a/src/util/service_new.c b/src/util/service_new.c
index 9c0ee539b..b4d03c17c 100644
--- a/src/util/service_new.c
+++ b/src/util/service_new.c
@@ -1723,9 +1723,10 @@ GNUNET_SERVICE_ruN_ (int argc,
 
   struct GNUNET_GETOPT_CommandLineOption service_options[] = {
     GNUNET_GETOPT_OPTION_CFG_FILE (&opt_cfg_filename),
-    {'d', "daemonize", NULL,
-     gettext_noop ("do daemonize (detach from terminal)"), 0,
-     GNUNET_GETOPT_set_one, &do_daemonize},
+    GNUNET_GETOPT_OPTION_SET_ONE ('d',
+                                  "daemonize",
+                                  gettext_noop ("do daemonize (detach from 
terminal)"),
+                                  &do_daemonize),
     GNUNET_GETOPT_OPTION_HELP (NULL),
     GNUNET_GETOPT_OPTION_LOGLEVEL (&loglev),
     GNUNET_GETOPT_OPTION_LOGFILE (&logfile),

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