/*
This file is part of GNUnet.
- (C) 2001, 2002, 2003, 2004, 2005, 2006, 2009 Christian Grothoff (and other contributing authors)
+ Copyright (C) 2001-2013 GNUnet e.V.
GNUnet is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published
- by the Free Software Foundation; either version 2, or (at your
+ by the Free Software Foundation; either version 3, or (at your
option) any later version.
GNUnet is distributed in the hope that it will be useful, but
You should have received a copy of the GNU General Public License
along with GNUnet; see the file COPYING. If not, write to the
- Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA.
+ Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA.
*/
/**
- * @file include/gnunet_getopt_lib.h
- * @brief command line parsing and --help formatting
- *
* @author Christian Grothoff
+ *
+ * @file
+ * Command line parsing and --help formatting
+ *
+ * @defgroup getopt Getopt library
+ * Command line parsing and --help formatting
+ * @{
*/
#ifndef GNUNET_GETOPT_LIB_H
};
+
/**
* @brief Process a command line option
*
* @param scls specific closure (for this processor)
* @param option long name of the option (i.e. "config" for --config)
* @param value argument, NULL if none was given
- * @return GNUNET_OK to continue processing other options, GNUNET_SYSERR to abort
+ * @return #GNUNET_OK to continue processing other options, #GNUNET_SYSERR to abort
*/
-typedef
- int (*GNUNET_GETOPT_CommandLineOptionProcessor) (struct
- GNUNET_GETOPT_CommandLineProcessorContext
- * ctx, void *scls,
- const char *option,
- const char *value);
+typedef int
+(*GNUNET_GETOPT_CommandLineOptionProcessor) (struct
+ GNUNET_GETOPT_CommandLineProcessorContext *ctx,
+ void *scls,
+ const char *option,
+ const char *value);
/**
* @brief Definition of a command line option.
{
/**
- * Short name of the option (use '\\0' for none).
+ * Short name of the option.
*/
const char shortName;
const char *description;
/**
- * Is an argument required? 0: GNUNET_NO (includes optional), 1: GNUNET_YES.
+ * Is an argument required? #GNUNET_NO (includes optional) or
+ * #GNUNET_YES (required)
*/
int require_argument;
/**
* Macro defining the option to print the command line
- * help text.
+ * 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 }
+
/**
* Macro defining the option to print the version of
- * the application
+ * 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 }
+
/**
- * Get the log level
+ * Allow user to specify log file name (-l option)
+ *
+ * @param 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 }
+
/**
- * Set the configuration option for logging.
+ * Allow user to specify log level (-L option)
+ *
+ * @param loglev set to the log level
*/
#define GNUNET_GETOPT_OPTION_LOGLEVEL(loglev) \
{ 'L', "log", "LOGLEVEL", gettext_noop("configure logging to use LOGLEVEL"), 1, &GNUNET_GETOPT_set_string, (void *) loglev }
+
/**
- * Get number of verbose flags
+ * Get number of verbose (-V) flags
+ *
+ * @param level where to store the verbosity level (should be an 'int')
*/
#define GNUNET_GETOPT_OPTION_VERBOSE(level) \
{ 'V', "verbose", (const char *) NULL, gettext_noop("be verbose"), 0, &GNUNET_GETOPT_increment_value, (void *) level }
+
/**
- * Get configuration file name
+ * Get configuration file name (-c option)
+ *
+ * @param fn set to the configuration file name
*/
#define GNUNET_GETOPT_OPTION_CFG_FILE(fn) \
{ 'c', "config", "FILENAME", gettext_noop("use configuration file FILENAME"), 1, &GNUNET_GETOPT_set_string, (void *) fn }
+
/**
- * Marker to end the list of options.
+ * Marker for the end of the list of options.
*/
#define GNUNET_GETOPT_OPTION_END \
{ '\0', NULL, NULL, NULL, 0, NULL, NULL }
+
/**
* Parse the command line.
*
* @param binaryOptions Name of application with option summary
* @param allOptions defined options and handlers
- * @param argc number of arguments
+ * @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
+ * argument, or #GNUNET_SYSERR on error
*/
-int GNUNET_GETOPT_run (const char *binaryOptions,
- const struct GNUNET_GETOPT_CommandLineOption
- *allOptions, unsigned int argc, char *const *argv);
+int
+GNUNET_GETOPT_run (const char *binaryOptions,
+ const struct GNUNET_GETOPT_CommandLineOption *allOptions,
+ unsigned int argc, char *const *argv);
/**
* 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
+ * `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'.
+ * type `unsigned long long`.
*
* @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
+ * @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);
+int
+GNUNET_GETOPT_set_ulong (struct GNUNET_GETOPT_CommandLineProcessorContext *ctx,
+ void *scls, const char *option, const char *value);
/**
- * Set an option of type 'unsigned long long' from the command line.
+ * 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
+ * `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`.
+ *
+ * @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
+ */
+int
+GNUNET_GETOPT_set_relative_time (struct GNUNET_GETOPT_CommandLineProcessorContext *ctx,
+ void *scls, const char *option, const char *value);
+
+
+/**
+ * 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'.
+ * type `unsigned int`.
*
* @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
+ * @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);
+int
+GNUNET_GETOPT_set_uint (struct GNUNET_GETOPT_CommandLineProcessorContext *ctx,
+ void *scls, const char *option, const char *value);
/**
- * Set an option of type 'int' from the command line to 1 if the
+ * 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
+ * `struct GNUNET_GETOPT_CommandLineOption` array to initialize options
* of this type. It should be followed by a pointer to a value of
- * type 'int'.
+ * 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 `int`)
* @param option name of the option
* @param value not used (NULL)
- * @return GNUNET_OK
+ * @return #GNUNET_OK (always)
*/
-int GNUNET_GETOPT_set_one (struct GNUNET_GETOPT_CommandLineProcessorContext
- *ctx, void *scls, const char *option,
- const char *value);
+int
+GNUNET_GETOPT_set_one (struct GNUNET_GETOPT_CommandLineProcessorContext *ctx,
+ void *scls, const char *option, const char *value);
/**
* 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.
+ *
+ * @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)
+ */
+int
+GNUNET_GETOPT_set_string (struct GNUNET_GETOPT_CommandLineProcessorContext *ctx,
+ void *scls, const char *option, const char *value);
+
+
+/**
+ * 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 *'.
+ * type 'char *', which will be allocated with the requested string.
*
* @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
+ * @return #GNUNET_OK (always)
*/
-int GNUNET_GETOPT_set_string (struct GNUNET_GETOPT_CommandLineProcessorContext
- *ctx, void *scls, const char *option,
- const char *value);
+int
+GNUNET_GETOPT_set_filename (struct GNUNET_GETOPT_CommandLineProcessorContext *ctx,
+ void *scls, const char *option, const char *value);
/**
* Set an option of type 'unsigned int' from the command line. Each
* @param scls additional closure (will point to the 'int')
* @param option name of the option
* @param value not used (NULL)
- * @return GNUNET_OK
+ * @return #GNUNET_OK (always)
*/
int
-GNUNET_GETOPT_increment_value (struct
- GNUNET_GETOPT_CommandLineProcessorContext *ctx,
- void *scls, const char *option,
+GNUNET_GETOPT_increment_value (struct GNUNET_GETOPT_CommandLineProcessorContext
+ *ctx, void *scls, const char *option,
const char *value);
* @param scls additional closure (points to about text)
* @param option name of the option
* @param value not used (NULL)
- * @return GNUNET_SYSERR (do not continue)
+ * @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);
+int
+GNUNET_GETOPT_format_help_ (struct GNUNET_GETOPT_CommandLineProcessorContext
+ *ctx, void *scls, const char *option,
+ const char *value);
/**
* Print out program version (implements --version).
* @param scls additional closure (points to version string)
* @param option name of the option
* @param value not used (NULL)
- * @return GNUNET_SYSERR (do not continue)
+ * @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);
+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 */
{
}
#endif
-
/* ifndef GNUNET_GETOPT_LIB_H */
#endif
+
+/** @} */ /* end of group getopt */
+
/* end of gnunet_getopt_lib.h */