diff options
Diffstat (limited to 'options.c')
| -rw-r--r-- | options.c | 346 |
1 files changed, 165 insertions, 181 deletions
@@ -1,10 +1,10 @@ -/*----------------------------------------------------------------------------*/ +/*---------------------------------------------------------------------------*/ /*options.h*/ -/*----------------------------------------------------------------------------*/ +/*---------------------------------------------------------------------------*/ /*Definitions for parsing the command line switches*/ -/*----------------------------------------------------------------------------*/ +/*---------------------------------------------------------------------------*/ /*Based on the code of unionfs translator.*/ -/*----------------------------------------------------------------------------*/ +/*---------------------------------------------------------------------------*/ /*Copyright (C) 2001, 2002, 2005, 2008 Free Software Foundation, Inc. Written by Sergiu Ivanov <unlimitedscolobb@gmail.com>. @@ -22,222 +22,206 @@ along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.*/ -/*----------------------------------------------------------------------------*/ +/*---------------------------------------------------------------------------*/ -/*----------------------------------------------------------------------------*/ +/*---------------------------------------------------------------------------*/ #define _GNU_SOURCE 1 -/*----------------------------------------------------------------------------*/ +/*---------------------------------------------------------------------------*/ #include <argp.h> #include <error.h> -/*----------------------------------------------------------------------------*/ +/*---------------------------------------------------------------------------*/ #include "debug.h" #include "options.h" #include "ncache.h" #include "node.h" -/*----------------------------------------------------------------------------*/ +/*---------------------------------------------------------------------------*/ -/*----------------------------------------------------------------------------*/ -/*--------Macros--------------------------------------------------------------*/ +/*---------------------------------------------------------------------------*/ +/*--------Macros-------------------------------------------------------------*/ /*Short documentation for argp*/ #define ARGS_DOC "DIR" -#define DOC "Provides namespace-based translator selection."\ +#define DOC "Provides namespace-based translator selection."\ " You can dynamically obtain the file 'file' translated by translator"\ " 'x' using the syntax: 'file,,x'." -/*----------------------------------------------------------------------------*/ +/*---------------------------------------------------------------------------*/ -/*----------------------------------------------------------------------------*/ -/*--------Forward Declarations------------------------------------------------*/ +/*---------------------------------------------------------------------------*/ +/*--------Forward Declarations-----------------------------------------------*/ /*Argp parser function for the common options*/ static -error_t -argp_parse_common_options - ( - int key, - char * arg, - struct argp_state * state - ); -/*----------------------------------------------------------------------------*/ + error_t + argp_parse_common_options (int key, char *arg, struct argp_state *state); +/*---------------------------------------------------------------------------*/ /*Argp parser function for the startup options*/ static -error_t -argp_parse_startup_options - ( - int key, - char * arg, - struct argp_state * state - ); -/*----------------------------------------------------------------------------*/ - -/*----------------------------------------------------------------------------*/ -/*--------Global Variables----------------------------------------------------*/ + error_t + argp_parse_startup_options (int key, char *arg, struct argp_state *state); +/*---------------------------------------------------------------------------*/ + +/*---------------------------------------------------------------------------*/ +/*--------Global Variables---------------------------------------------------*/ /*This variable is set to a non-zero value after the parsing of starup options is finished*/ /*Whenever the argument parser is later called to modify the options of the root node will be initialized accordingly directly by the parser*/ static int parsing_startup_options_finished; -/*----------------------------------------------------------------------------*/ +/*---------------------------------------------------------------------------*/ /*Argp options common to both the runtime and the startup parser*/ -static const struct argp_option argp_common_options[] = - { - /*{OPT_LONG_CACHE_SIZE, OPT_CACHE_SIZE, "SIZE", 0, - "The maximal number of nodes in the node cache"}*/ - {0} - }; -/*----------------------------------------------------------------------------*/ +static const struct argp_option argp_common_options[] = { + /*{OPT_LONG_CACHE_SIZE, OPT_CACHE_SIZE, "SIZE", 0, + "The maximal number of nodes in the node cache"} */ + {0} +}; + +/*---------------------------------------------------------------------------*/ /*Argp options only meaningful for startup parsing*/ -static const struct argp_option argp_startup_options[] = - { - {0} - }; -/*----------------------------------------------------------------------------*/ +static const struct argp_option argp_startup_options[] = { + {0} +}; + +/*---------------------------------------------------------------------------*/ /*Argp parser for only the common options*/ static const struct argp argp_parser_common_options = - {argp_common_options, argp_parse_common_options, 0, 0, 0}; -/*----------------------------------------------------------------------------*/ + { argp_common_options, argp_parse_common_options, 0, 0, 0 }; +/*---------------------------------------------------------------------------*/ /*Argp parser for only the startup options*/ static const struct argp argp_parser_startup_options = - {argp_startup_options, argp_parse_startup_options, 0, 0, 0}; -/*----------------------------------------------------------------------------*/ + { argp_startup_options, argp_parse_startup_options, 0, 0, 0 }; +/*---------------------------------------------------------------------------*/ /*The list of children parsers for runtime arguments*/ -static const struct argp_child argp_children_runtime[] = - { - {&argp_parser_common_options}, - {&netfs_std_runtime_argp}, - {0} - }; -/*----------------------------------------------------------------------------*/ +static const struct argp_child argp_children_runtime[] = { + {&argp_parser_common_options}, + {&netfs_std_runtime_argp}, + {0} +}; + +/*---------------------------------------------------------------------------*/ /*The list of children parsers for startup arguments*/ -static const struct argp_child argp_children_startup[] = - { - {&argp_parser_startup_options}, - {&argp_parser_common_options}, - {&netfs_std_startup_argp}, - {0} - }; -/*----------------------------------------------------------------------------*/ +static const struct argp_child argp_children_startup[] = { + {&argp_parser_startup_options}, + {&argp_parser_common_options}, + {&netfs_std_startup_argp}, + {0} +}; + +/*---------------------------------------------------------------------------*/ /*The version of the server for argp*/ -const char * argp_program_version = "0.0"; -/*----------------------------------------------------------------------------*/ +const char *argp_program_version = "0.0"; +/*---------------------------------------------------------------------------*/ /*The arpg parser for runtime arguments*/ -struct argp argp_runtime = - {0, 0, 0, 0, argp_children_runtime}; -/*----------------------------------------------------------------------------*/ +struct argp argp_runtime = { 0, 0, 0, 0, argp_children_runtime }; + +/*---------------------------------------------------------------------------*/ /*The argp parser for startup arguments*/ -struct argp argp_startup = - {0, 0, ARGS_DOC, DOC, argp_children_startup}; -/*----------------------------------------------------------------------------*/ +struct argp argp_startup = { 0, 0, ARGS_DOC, DOC, argp_children_startup }; + +/*---------------------------------------------------------------------------*/ /*The directory to mirror*/ -char * dir = NULL; -/*----------------------------------------------------------------------------*/ +char *dir = NULL; +/*---------------------------------------------------------------------------*/ -/*----------------------------------------------------------------------------*/ -/*--------Functions-----------------------------------------------------------*/ +/*---------------------------------------------------------------------------*/ +/*--------Functions----------------------------------------------------------*/ /*Argp parser function for the common options*/ static -error_t -argp_parse_common_options - ( - int key, - char * arg, - struct argp_state * state - ) - { - error_t err = 0; - - /*Go through the possible options*/ - switch(key) - { - /*case OPT_CACHE_SIZE: - {*/ - /*store the new cache-size*/ - /*ncache_size = strtol(arg, NULL, 10); - - break; - }*/ - case ARGP_KEY_ARG: /*the directory to mirror*/ - { - /*try to duplicate the directory name*/ - dir = strdup(arg); - if(!dir) - error(EXIT_FAILURE, ENOMEM, "argp_parse_common_options: " - "Could not strdup the directory"); - - /*fill all trailing spaces with 0*/ - int i = strlen(dir) - 1; - /*for(i = strlen(dir) - 1; (i >= 0) && (dir[i] == ' '); dir[i--] = 0);*/ - /*the original filename may contain spaces*/ - - /*If the last non blank symbol is a '/' and it's not the only one*/ - if((dir[i] == '/') && (i != 0)) - /*put 0 instead*/ - dir[i] = 0; - - LOG_MSG("argp_parse_common_options: Mirroring the directory %s.", dir); - - break; - } - case ARGP_KEY_END: - { - /*If parsing of startup options has not finished*/ - if(!parsing_startup_options_finished) - { - /*reset the cache*/ - ncache_reset(); - - /*If the directory has not been specified*/ - if(!dir) - { - /*assume the directory to be the home directory*/ - ; - - /*FIXME: The default directory is /var/tmp*/ - dir = "/var/tmp"; - } - - /*set the flag that the startup options have already been parsed*/ - parsing_startup_options_finished = 1; - } - else - { + error_t + argp_parse_common_options (int key, char *arg, struct argp_state *state) +{ + error_t err = 0; + + /*Go through the possible options */ + switch (key) + { + /*case OPT_CACHE_SIZE: + { */ + /*store the new cache-size */ + /*ncache_size = strtol(arg, NULL, 10); + + break; + } */ + case ARGP_KEY_ARG: /*the directory to mirror */ + { + /*try to duplicate the directory name */ + dir = strdup (arg); + if (!dir) + error (EXIT_FAILURE, ENOMEM, "argp_parse_common_options: " + "Could not strdup the directory"); + + /*fill all trailing spaces with 0 */ + int i = strlen (dir) - 1; + /*for(i = strlen(dir) - 1; (i >= 0) && (dir[i] == ' '); + dir[i--] = 0); */ + /*the original filename may contain spaces */ + + /*If the last non blank symbol is a '/' and it's not the only one */ + if ((dir[i] == '/') && (i != 0)) + /*put 0 instead */ + dir[i] = 0; + + LOG_MSG ("argp_parse_common_options: Mirroring the directory %s.", + dir); + + break; + } + case ARGP_KEY_END: + { + /*If parsing of startup options has not finished */ + if (!parsing_startup_options_finished) + { + /*reset the cache */ + ncache_reset (); + + /*If the directory has not been specified */ + if (!dir) + { + /*assume the directory to be the home directory */ + ; + + /*FIXME: The default directory is /var/tmp */ + dir = "/var/tmp"; + } + + /*set the flag that the startup options have already been parsed */ + parsing_startup_options_finished = 1; + } + else + { /*TODO: Take care of runtime calls modifying the property*/ - } - } - /*If the option could not be recognized*/ - default: - { - /*set the error code*/ - err = ARGP_ERR_UNKNOWN; - } - } - - /*Return the result*/ - return err; - }/*argp_parse_common_options*/ -/*----------------------------------------------------------------------------*/ + } + } + /*If the option could not be recognized */ + default: + { + /*set the error code */ + err = ARGP_ERR_UNKNOWN; + } + } + + /*Return the result */ + return err; +} /*argp_parse_common_options */ + +/*---------------------------------------------------------------------------*/ /*Argp parser function for the startup options*/ static -error_t -argp_parse_startup_options - ( - int key, - char * arg, - struct argp_state * state - ) - { - /*Do nothing in a beautiful way*/ - error_t err = 0; - - switch(key) - { - default: - { - err = ARGP_ERR_UNKNOWN; - - break; - } - } - - return err; - }/*argp_parse_startup_options*/ -/*----------------------------------------------------------------------------*/ + error_t + argp_parse_startup_options (int key, char *arg, struct argp_state *state) +{ + /*Do nothing in a beautiful way */ + error_t err = 0; + + switch (key) + { + default: + { + err = ARGP_ERR_UNKNOWN; + + break; + } + } + + return err; +} /*argp_parse_startup_options */ + +/*---------------------------------------------------------------------------*/ |