Freeciv-3.2
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Macros | Functions | Variables
shared.c File Reference
#include "fc_prehdrs.h"
#include <errno.h>
#include <limits.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/stat.h>
#include <sys/types.h>
#include "astring.h"
#include "fc_dirent.h"
#include "fciconv.h"
#include "fcintl.h"
#include "mem.h"
#include "rand.h"
#include "string_vector.h"
#include "shared.h"

Go to the source code of this file.

Macros

#define DEFAULT_DATA_PATH
 
#define DEFAULT_SAVE_PATH
 
#define DEFAULT_SCENARIO_PATH
 
#define FREECIV_DATA_PATH   "FREECIV_DATA_PATH"
 
#define FREECIV_SAVE_PATH   "FREECIV_SAVE_PATH"
 
#define FREECIV_SCENARIO_PATH   "FREECIV_SCENARIO_PATH"
 
#define HOMEVAR   "HOME"
 
#define default_data_path   DEFAULT_DATA_PATH
 
#define default_scenario_path   DEFAULT_SCENARIO_PATH
 

Functions

static int compare_file_mtime_ptrs (const struct fileinfo *const *ppa, const struct fileinfo *const *ppb)
 
static charexpand_dir (char *tok_in, bool ok_to_free)
 
enum fc_tristate fc_tristate_and (enum fc_tristate one, enum fc_tristate two)
 
enum fc_tristate fc_tristate_or (enum fc_tristate one, enum fc_tristate two)
 
const charbig_int_to_text (unsigned int mantissa, unsigned int exponent)
 
const charint_to_text (unsigned int number)
 
static bool is_ascii (char ch)
 
bool is_safe_filename (const char *name)
 
bool is_ascii_name (const char *name)
 
bool is_base64url (const char *s)
 
void randomize_base64url_string (char *s, size_t n)
 
int compare_strings (const void *first, const void *second)
 
int compare_strings_ptrs (const void *first, const void *second)
 
int compare_strings_strvec (const char *const *first, const char *const *second)
 
charskip_leading_spaces (char *s)
 
void remove_leading_spaces (char *s)
 
void remove_trailing_spaces (char *s)
 
void remove_leading_trailing_spaces (char *s)
 
static void remove_trailing_char (char *s, char trailing)
 
charend_of_strn (char *str, int *nleft)
 
bool check_strlen (const char *str, size_t len, const char *errmsg)
 
size_t loud_strlcpy (char *buffer, const char *str, size_t len, const char *errmsg)
 
bool str_to_int (const char *str, int *pint)
 
bool str_to_uint (const char *str, unsigned int *pint)
 
bool str_to_float (const char *str, float *pfloat)
 
charuser_home_dir (void)
 
void free_user_home_dir (void)
 
charfreeciv_storage_dir (void)
 
void free_freeciv_storage_dir (void)
 
charuser_username (char *buf, size_t bufsz)
 
static struct strvecbase_get_dirs (const char *dir_list)
 
void free_data_dir_names (void)
 
const struct strvecget_data_dirs (void)
 
const struct strvecget_save_dirs (void)
 
const struct strvecget_scenario_dirs (void)
 
struct strvecfileinfolist (const struct strvec *dirs, const char *suffix)
 
const charfileinfoname (const struct strvec *dirs, const char *filename)
 
void free_fileinfo_data (void)
 
static void fileinfo_destroy (struct fileinfo *pfile)
 
static int compare_file_name_ptrs (const struct fileinfo *const *ppa, const struct fileinfo *const *ppb)
 
static bool compare_fileinfo_name (const struct fileinfo *pa, const struct fileinfo *pb)
 
struct fileinfo_listfileinfolist_infix (const struct strvec *dirs, const char *infix, bool nodups)
 
const charsetup_langname (void)
 
void switch_lang (const char *lang)
 
void init_nls (void)
 
void free_nls (void)
 
void dont_run_as_root (const char *argv0, const char *fallback)
 
const charm_pre_description (enum m_pre_result result)
 
enum m_pre_result match_prefix (m_pre_accessor_fn_t accessor_fn, size_t n_names, size_t max_len_name, m_pre_strncmp_fn_t cmp_fn, m_strlen_fn_t len_fn, const char *prefix, int *ind_result)
 
enum m_pre_result match_prefix_full (m_pre_accessor_fn_t accessor_fn, size_t n_names, size_t max_len_name, m_pre_strncmp_fn_t cmp_fn, m_strlen_fn_t len_fn, const char *prefix, int *ind_result, int *matches, int max_matches, int *pnum_matches)
 
charget_multicast_group (bool ipv6_preferred)
 
void free_multicast_group (void)
 
void interpret_tilde (char *buf, size_t buf_size, const char *filename)
 
charinterpret_tilde_alloc (const char *filename)
 
charskip_to_basename (char *filepath)
 
bool make_dir (const char *pathname)
 
bool make_dir_for_file (char *filename)
 
bool path_is_absolute (const char *filename)
 
char scanin (const char **buf, char *delimiters, char *dest, int size)
 
void format_time_duration (time_t t, char *buf, int maxlen)
 
void array_shuffle (int *array, int n)
 
static bool wildcard_asterisk_fit (const char *pattern, const char *test)
 
static bool wildcard_range_fit (const char **pattern, const char **test)
 
bool wildcard_fit_string (const char *pattern, const char *test)
 
int fc_vsnprintcf (char *buf, size_t buf_len, const char *format, const struct cf_sequence *sequences, size_t sequences_num)
 
int fc_snprintcf (char *buf, size_t buf_len, const char *format,...)
 
static size_t extract_escapes (const char *format, char *escapes, size_t max_escapes)
 
bool formats_match (const char *format1, const char *format2)
 

Variables

static chargrouping = NULL
 
static chargrouping_sep = NULL
 
static const char base64url []
 
static struct strvecdata_dir_names = NULL
 
static struct strvecsave_dir_names = NULL
 
static struct strvecscenario_dir_names = NULL
 
static charmc_group = NULL
 
static charhome_dir_user = NULL
 
static charstorage_dir_freeciv = NULL
 
static struct astring realfile = ASTRING_INIT
 

Macro Definition Documentation

◆ DEFAULT_DATA_PATH

#define DEFAULT_DATA_PATH
Value:
char * incite_cost
Definition comments.c:75
#define DIR_SEPARATOR
Definition shared.h:127
#define PATH_SEPARATOR
Definition shared.h:116

Definition at line 69 of file shared.c.

◆ default_data_path

#define default_data_path   DEFAULT_DATA_PATH

◆ DEFAULT_SAVE_PATH

#define DEFAULT_SAVE_PATH
Value:

Definition at line 74 of file shared.c.

◆ DEFAULT_SCENARIO_PATH

#define DEFAULT_SCENARIO_PATH

◆ default_scenario_path

#define default_scenario_path   DEFAULT_SCENARIO_PATH

◆ FREECIV_DATA_PATH

#define FREECIV_DATA_PATH   "FREECIV_DATA_PATH"

Definition at line 87 of file shared.c.

◆ FREECIV_SAVE_PATH

#define FREECIV_SAVE_PATH   "FREECIV_SAVE_PATH"

Definition at line 90 of file shared.c.

◆ FREECIV_SCENARIO_PATH

#define FREECIV_SCENARIO_PATH   "FREECIV_SCENARIO_PATH"

Definition at line 93 of file shared.c.

◆ HOMEVAR

#define HOMEVAR   "HOME"

Function Documentation

◆ array_shuffle()

void array_shuffle ( int array,
int  n 
)

Randomize the elements of an array using the Fisher-Yates shuffle.

See: http://benpfaff.org/writings/clc/shuffle.html

Definition at line 2010 of file shared.c.

Referenced by trade_generator::calculate(), genlist_shuffle(), map_generate_fair_islands(), and shuffle_players().

◆ base_get_dirs()

static struct strvec * base_get_dirs ( const char dir_list)
static

Returns a list of directory paths, in the order in which they should be searched. Base function for get_data_dirs(), get_save_dirs(), get_scenario_dirs()

Definition at line 839 of file shared.c.

Referenced by get_data_dirs(), get_save_dirs(), and get_scenario_dirs().

◆ big_int_to_text()

const char * big_int_to_text ( unsigned int  mantissa,
unsigned int  exponent 
)

Returns a statically allocated string containing a nicely-formatted version of the given number according to the user's locale. (Only works for numbers >= zero.) The number is given in scientific notation as mantissa * 10^exponent.

Definition at line 159 of file shared.c.

Referenced by int_to_text(), and population_to_text().

◆ check_strlen()

bool check_strlen ( const char str,
size_t  len,
const char errmsg 
)

Check the length of the given string. If the string is too long, log errmsg, which should be a string in printf-format taking up to two arguments: the string and the length.

Definition at line 495 of file shared.c.

Referenced by load_ruleset_nations(), and loud_strlcpy().

◆ compare_file_mtime_ptrs()

static int compare_file_mtime_ptrs ( const struct fileinfo *const ppa,
const struct fileinfo *const ppb 
)
static

Compare modification times.

Definition at line 1176 of file shared.c.

Referenced by fileinfolist_infix().

◆ compare_file_name_ptrs()

static int compare_file_name_ptrs ( const struct fileinfo *const ppa,
const struct fileinfo *const ppb 
)
static

Compare names.

Definition at line 1188 of file shared.c.

Referenced by fileinfolist_infix().

◆ compare_fileinfo_name()

static bool compare_fileinfo_name ( const struct fileinfo pa,
const struct fileinfo pb 
)
static

Compare names.

Definition at line 1197 of file shared.c.

Referenced by fileinfolist_infix().

◆ compare_strings()

int compare_strings ( const void first,
const void second 
)

Compares two strings, in the collating order of the current locale, given pointers to the two strings (i.e., given "char *"s). Case-sensitive. Designed to be called from qsort().

Definition at line 359 of file shared.c.

Referenced by help_item_compar().

◆ compare_strings_ptrs()

int compare_strings_ptrs ( const void first,
const void second 
)

Compares two strings, in the collating order of the current locale, given pointers to the two string pointers (i.e., given "char **"s). Case-sensitive. Designed to be called from qsort().

Definition at line 369 of file shared.c.

Referenced by packet_handlers_get().

◆ compare_strings_strvec()

int compare_strings_strvec ( const char *const first,
const char *const second 
)

Compares two strings, in the collating order of the current locale, given pointers to the two string pointers. Case-sensitive. Designed to be called from strvec_sort().

Definition at line 379 of file shared.c.

Referenced by fileinfolist(), and report_wonders_of_the_world_long().

◆ dont_run_as_root()

void dont_run_as_root ( const char argv0,
const char fallback 
)

If we have root privileges, die with an error. (Eg, for security reasons.) Param argv0 should be argv[0] or similar; fallback is used instead if argv0 is NULL. But don't die on systems where the user is always root... (a general test for this would be better). Doesn't use log_*() because gets called before logging is setup.

Definition at line 1549 of file shared.c.

Referenced by client_main(), and main().

◆ end_of_strn()

char * end_of_strn ( char str,
int nleft 
)

Returns pointer to '\0' at end of string 'str', and decrements nleft by the length of 'str'. This is intended to be useful to allow strcat-ing without traversing the whole string each time, while still keeping track of the buffer length. Eg: char buf[128]; int n = sizeof(buf); char *p = buf;

fc_snprintf(p, n, "foo%p", p); p = end_of_strn(p, &n); fc_strlcpy(p, "yyy", n);

Definition at line 480 of file shared.c.

◆ expand_dir()

static char * expand_dir ( char tok_in,
bool  ok_to_free 
)
static

Return tok_in directory name with "~/" expanded as user home directory. The function might return tok_in, or a new string. In either case caller should free() the returned string eventually. Also, tok_in should be something expand_dir() can free itself if it decides to return newly created string (so caller can always free() just the returned string, not to care if it's same as tok_in or not). If ok_to_free is FALSE, expand_dir() never frees original but can still return either it or a newly allocated string.

Definition at line 785 of file shared.c.

Referenced by base_get_dirs(), and freeciv_storage_dir().

◆ extract_escapes()

static size_t extract_escapes ( const char format,
char escapes,
size_t  max_escapes 
)
static

Extract the sequences of a format. Returns the number of extracted escapes.

Definition at line 2386 of file shared.c.

Referenced by formats_match().

◆ fc_snprintcf()

int fc_snprintcf ( char buf,
size_t  buf_len,
const char format,
  ... 
)

Print a string with a custom format. The additional arguments are a suite of cf_*_seq() finished by cf_end(). This return the number of printed characters (excluding the last '\0') or -1 if the buffer is full.

Example: char buf[256];

fc_snprintcf(buf, sizeof(buf), "%y %+06y", cf_int_seq('y', 2010), cf_end()); This will print "2010 +02010" into buf.

Definition at line 2352 of file shared.c.

◆ fc_tristate_and()

enum fc_tristate fc_tristate_and ( enum fc_tristate  one,
enum fc_tristate  two 
)

An AND function for fc_tristate.

Definition at line 124 of file shared.c.

Referenced by action_enabled_local(), and action_prob().

◆ fc_tristate_or()

enum fc_tristate fc_tristate_or ( enum fc_tristate  one,
enum fc_tristate  two 
)

An OR function for fc_tristate.

Definition at line 140 of file shared.c.

Referenced by is_diplrel_unitany_in_range().

◆ fc_vsnprintcf()

int fc_vsnprintcf ( char buf,
size_t  buf_len,
const char format,
const struct cf_sequence sequences,
size_t  sequences_num 
)

Print a string with a custom format. sequences is a pointer to an array of sequences, probably defined with CF_*_SEQ(). sequences_num is the number of the sequences, or -1 in the case the array is terminated with CF_END.

Example: static const struct cf_sequence sequences[] = { CF_INT_SEQ('y', 2010) }; char buf[256];

fc_vsnprintcf(buf, sizeof(buf), "%y %+06y", sequences, 1); This will print "2010 +02010" into buf.

Definition at line 2204 of file shared.c.

Referenced by fc_snprintcf(), and generate_save_name().

◆ fileinfo_destroy()

static void fileinfo_destroy ( struct fileinfo pfile)
static

Destroys the file info structure.

Definition at line 1166 of file shared.c.

Referenced by fileinfolist_infix().

◆ fileinfolist()

struct strvec * fileinfolist ( const struct strvec dirs,
const char suffix 
)

Returns a string vector storing the filenames in the data directories matching the given suffix.

The list is allocated when the function is called; it should either be stored permanently or destroyed (with strvec_destroy()).

The suffixes are removed from the filenames before the list is returned.

Definition at line 1027 of file shared.c.

Referenced by get_audio_speclist(), get_init_script_choices(), get_theme_list(), get_tileset_list(), themespec_try_read(), and tilespec_try_read().

◆ fileinfolist_infix()

struct fileinfo_list * fileinfolist_infix ( const struct strvec dirs,
const char infix,
bool  nodups 
)

Search for filenames with the "infix" substring in the "subpath" subdirectory of the data path. "nodups" removes duplicate names. The returned list will be sorted by name first and modification time second. Returned "name"s will be truncated starting at the "infix" substring. The returned list must be freed with fileinfo_list_destroy().

Definition at line 1211 of file shared.c.

Referenced by get_modpacks_list(), popup_load_game_dialog(), save_dialog_mapimg_list(), save_dialog_savegame_list(), save_dialog_scenario_list(), show_scenarios(), update_load_page(), fc_client::update_load_page(), update_scenario_page(), and fc_client::update_scenarios_page().

◆ fileinfoname()

const char * fileinfoname ( const struct strvec dirs,
const char filename 
)

Returns a filename to access the specified file from a directory by searching all specified directories for the file.

If the specified 'filename' is NULL, the returned string contains the effective path. (But this should probably only be used for debug output.)

Returns NULL if the specified filename cannot be found in any of the data directories. (A file is considered "found" if it can be read-opened.) The returned pointer points to static memory, so this function can only supply one filename at a time. Don't free that pointer.

TODO: Make this re-entrant

Definition at line 1101 of file shared.c.

Referenced by audio_play_tag(), audiospec_fullname(), boot_help_texts(), comments_load(), datafilename(), fc_icons::get_icon(), fc_icons::get_path(), fc_icons::get_pixmap(), get_token_value(), get_ui_filename(), load_command(), load_gfx_file(), load_sdl2_gfx_file(), load_sdl3_gfx_file(), lua_command(), main(), read_init_script_real(), ruledit_main::ruledit_main(), set_rulesetdir(), sg_load_savefile(), srv_prepare(), theme_read_toplevel(), themespec_gfx_filename(), tileset_scan_single_list(), tilespec_fullname(), tilespec_gfx_filename(), and valid_ruleset_filename().

◆ format_time_duration()

void format_time_duration ( time_t  t,
char buf,
int  maxlen 
)

Convenience function to nicely format a time_t seconds value in to a string with hours, minutes, etc.

Definition at line 1967 of file shared.c.

Referenced by unit_can_do_action_now().

◆ formats_match()

bool formats_match ( const char format1,
const char format2 
)

Returns TRUE iff both formats are compatible (if 'format1' can be used instead 'format2' and reciprocally).

Definition at line 2445 of file shared.c.

Referenced by ruler_title_check(), and sanity_check_ruleset_data().

◆ free_data_dir_names()

void free_data_dir_names ( void  )

Free data dir name vectors.

Definition at line 866 of file shared.c.

Referenced by libfreeciv_free().

◆ free_fileinfo_data()

void free_fileinfo_data ( void  )

Free resources allocated for fileinfoname service

Definition at line 1158 of file shared.c.

Referenced by libfreeciv_free().

◆ free_freeciv_storage_dir()

void free_freeciv_storage_dir ( void  )

Free freeciv storage directory information

Definition at line 696 of file shared.c.

Referenced by libfreeciv_free().

◆ free_multicast_group()

void free_multicast_group ( void  )

Free multicast group resources

Definition at line 1705 of file shared.c.

Referenced by libfreeciv_free().

◆ free_nls()

void free_nls ( void  )

Free memory allocated by Native Language Support

Definition at line 1532 of file shared.c.

Referenced by libfreeciv_free().

◆ free_user_home_dir()

void free_user_home_dir ( void  )

Free user home directory information

Definition at line 665 of file shared.c.

Referenced by libfreeciv_free().

◆ freeciv_storage_dir()

char * freeciv_storage_dir ( void  )

Returns string which gives freeciv storage dir. Gets value once, and then caches result. Note the caller should not mess with the returned string.

Definition at line 678 of file shared.c.

Referenced by client_start_server(), fcmp_parse_cmdline(), get_challenge_fullname(), mr_menu::save_image(), send_client_wants_hack(), server_sniff_all_input(), and tab_misc::tab_misc().

◆ get_data_dirs()

const struct strvec * get_data_dirs ( void  )

Returns a list of data directory paths, in the order in which they should be searched. These paths are specified internally or may be set as the environment variable $FREECIV_DATA PATH (a separated list of directories, where the separator itself is specified internally, platform-dependent). '~' at the start of a component (provided followed by '/' or '\0') is expanded as $HOME.

The returned pointer is static and shouldn't be modified, nor destroyed by the user caller.

Definition at line 893 of file shared.c.

Referenced by audio_play_tag(), audiospec_fullname(), boot_help_texts(), comments_load(), datafilename(), get_audio_speclist(), get_gui_specific_themes_directories(), fc_icons::get_icon(), get_init_script_choices(), get_modpacks_list(), fc_icons::get_path(), fc_icons::get_pixmap(), get_theme_list(), get_tileset_list(), get_token_value(), get_ui_filename(), load_gfx_file(), load_sdl2_gfx_file(), load_sdl3_gfx_file(), lua_command(), main(), qtg_get_gui_specific_themes_directories(), read_init_script_real(), ruledit_main::ruledit_main(), set_rulesetdir(), srv_prepare(), theme_read_toplevel(), themespec_gfx_filename(), themespec_try_read(), tileset_scan_single_list(), tilespec_fullname(), tilespec_gfx_filename(), tilespec_try_read(), and valid_ruleset_filename().

◆ get_multicast_group()

char * get_multicast_group ( bool  ipv6_preferred)

Returns string which gives the multicast group IP address for finding servers on the LAN, as specified by $FREECIV_MULTICAST_GROUP. Gets value once, and then caches result.

Definition at line 1674 of file shared.c.

Referenced by begin_lanserver_scan(), send_lanserver_response(), and server_open_socket().

◆ get_save_dirs()

const struct strvec * get_save_dirs ( void  )

Returns a list of save directory paths, in the order in which they should be searched. These paths are specified internally or may be set as the environment variable $FREECIV_SAVE_PATH (a separated list of directories, where the separator itself is specified internally, platform-dependent). '~' at the start of a component (provided followed by '/' or '\0') is expanded as $HOME.

The returned pointer is static and shouldn't be modified, nor destroyed by the user caller.

Definition at line 941 of file shared.c.

Referenced by load_command(), popup_load_game_dialog(), save_dialog_mapimg_list(), save_dialog_savegame_list(), mr_menu::save_game_as(), update_load_page(), and fc_client::update_load_page().

◆ get_scenario_dirs()

const struct strvec * get_scenario_dirs ( void  )

Returns a list of scenario directory paths, in the order in which they should be searched. These paths are specified internally or may be set as the environment variable $FREECIV_SCENARIO_PATH (a separated list of directories, where the separator itself is specified internally, platform-dependent). '~' at the start of a component (provided followed by '/' or '\0') is expanded as $HOME.

The returned pointer is static and shouldn't be modified, nor destroyed by the user caller.

Definition at line 978 of file shared.c.

Referenced by load_command(), save_dialog_scenario_list(), sg_load_savefile(), show_scenarios(), update_scenario_page(), and fc_client::update_scenarios_page().

◆ init_nls()

void init_nls ( void  )

Setup for Native Language Support, if configured to use it. (Call this only once, or it may leak memory.)

Definition at line 1470 of file shared.c.

Referenced by libfreeciv_init().

◆ int_to_text()

const char * int_to_text ( unsigned int  number)

Return a prettily formatted string containing the given number.

Definition at line 234 of file shared.c.

Referenced by value_units().

◆ interpret_tilde()

void interpret_tilde ( char buf,
size_t  buf_size,
const char filename 
)

Interpret ~/ in filename as home dir New path is returned in buf of size buf_size

This may fail if the path is too long. It is better to use interpret_tilde_alloc().

Definition at line 1720 of file shared.c.

Referenced by lua_command(), read_init_script_real(), secfile_load_section(), secfile_save(), and write_init_script().

◆ interpret_tilde_alloc()

char * interpret_tilde_alloc ( const char filename)

Interpret ~/ in filename as home dir

The new path is returned in buf, as a newly allocated buffer. The new path will always be allocated and written, even if there is no ~ present.

Definition at line 1737 of file shared.c.

Referenced by make_dir().

◆ is_ascii()

static bool is_ascii ( char  ch)
static

Check whether or not the given char is a valid ascii character. The character can be in any charset so long as it is a superset of ascii.

Definition at line 243 of file shared.c.

Referenced by is_ascii_name().

◆ is_ascii_name()

bool is_ascii_name ( const char name)

This is used in sundry places to make sure that names of cities, players etc. do not contain yucky characters of various sorts. Returns TRUE iff the name is acceptable. FIXME: Not internationalised.

Definition at line 283 of file shared.c.

Referenced by is_allowed_city_name(), is_good_password(), is_valid_username(), server_player_name_is_allowed(), and user_username().

◆ is_base64url()

bool is_base64url ( const char s)

Check for valid base64url.

Definition at line 318 of file shared.c.

Referenced by sg_load_sanitycheck(), and sg_load_sanitycheck().

◆ is_safe_filename()

bool is_safe_filename ( const char name)

Check if the name is safe security-wise. This is intended to be used to make sure an untrusted filename is safe to be used.

Definition at line 253 of file shared.c.

Referenced by api_server_save(), load_command(), lua_command(), read_init_script_real(), savename_validate(), scorefile_validate(), send_client_wants_hack(), and set_rulesetdir().

◆ loud_strlcpy()

size_t loud_strlcpy ( char buffer,
const char str,
size_t  len,
const char errmsg 
)

Call check_strlen() on str and then strlcpy() it into buffer.

Definition at line 505 of file shared.c.

◆ m_pre_description()

const char * m_pre_description ( enum m_pre_result  result)

Return a description string of the result. In English, form of description is suitable to substitute in, eg: prefix is (N.B.: The description is always in English, but they have all been marked for translation. If you want a localized version, use _() on the return.)

Definition at line 1571 of file shared.c.

Referenced by cmd_reply_no_such_conn(), and cmd_reply_no_such_player().

◆ make_dir()

bool make_dir ( const char pathname)

If the directory "pathname" does not exist, recursively create all directories until it does.

TODO: Make errno available after a failure, preferably via fc_get_errno(). Currently there's things potentially messing errno between failed mkdir() and the function return.

Definition at line 1782 of file shared.c.

Referenced by create_mpdb(), img_save(), make_dir_for_file(), save_game(), save_ruleset(), send_client_wants_hack(), and server_sniff_all_input().

◆ make_dir_for_file()

bool make_dir_for_file ( char filename)

If the directory part of the "filename" does not exist, recursively create all directories until it does.

Definition at line 1861 of file shared.c.

Referenced by download_modpack_recursive().

◆ match_prefix()

enum m_pre_result match_prefix ( m_pre_accessor_fn_t  accessor_fn,
size_t  n_names,
size_t  max_len_name,
m_pre_strncmp_fn_t  cmp_fn,
m_strlen_fn_t  len_fn,
const char prefix,
int ind_result 
)

◆ match_prefix_full()

enum m_pre_result match_prefix_full ( m_pre_accessor_fn_t  accessor_fn,
size_t  n_names,
size_t  max_len_name,
m_pre_strncmp_fn_t  cmp_fn,
m_strlen_fn_t  len_fn,
const char prefix,
int ind_result,
int matches,
int  max_matches,
int pnum_matches 
)

Given n names, with maximum length max_len_name, accessed by accessor_fn(0) to accessor_fn(n-1), look for matching prefix according to given comparison function. Returns type of match or fail, and for return <= M_PRE_AMBIGUOUS sets *ind_result with matching index (or for ambiguous, first match). If max_len_name == 0, treat as no maximum. If the int array 'matches' is non-NULL, up to 'max_matches' ambiguous matching names indices will be inserted into it. If 'pnum_matches' is non-NULL, it will be set to the number of indices inserted into 'matches'.

Definition at line 1613 of file shared.c.

Referenced by check_player_or_user_name(), match_prefix(), and show_help().

◆ path_is_absolute()

bool path_is_absolute ( const char filename)

Returns TRUE if the filename's path is absolute.

Definition at line 1883 of file shared.c.

Referenced by img_save(), and save_game().

◆ randomize_base64url_string()

void randomize_base64url_string ( char s,
size_t  n 
)

Generate a random string meeting criteria such as is_ascii_name(), is_base64url(), and is_safe_filename().

Definition at line 339 of file shared.c.

Referenced by init_new_game(), sg_load_sanitycheck(), and sg_load_sanitycheck().

◆ remove_leading_spaces()

void remove_leading_spaces ( char s)

Removes leading spaces in string pointed to by 's'. Note 's' must point to writeable memory!

Definition at line 403 of file shared.c.

Referenced by handle_stdin_input_real(), and remove_leading_trailing_spaces().

◆ remove_leading_trailing_spaces()

void remove_leading_trailing_spaces ( char s)

◆ remove_trailing_char()

static void remove_trailing_char ( char s,
char  trailing 
)
static

As remove_trailing_spaces(), for specified char.

Definition at line 453 of file shared.c.

Referenced by expand_dir().

◆ remove_trailing_spaces()

void remove_trailing_spaces ( char s)

Terminates string pointed to by 's' to remove trailing spaces; Note 's' must point to writeable memory!

Definition at line 421 of file shared.c.

Referenced by expand_dir(), handle_stdin_input_real(), and remove_leading_trailing_spaces().

◆ scanin()

char scanin ( const char **  buf,
char delimiters,
char dest,
int  size 
)

Scan in a word or set of words from start to but not including any of the given delimiters. The buf pointer will point past delimiter, or be set to NULL if there is nothing there. Removes excess white space.

This function should be safe, and dest will contain "\0" and buf == NULL on failure. We always fail gently.

Due to the way the scanning is performed, looking for a space will give you the first word even if it comes before multiple spaces.

Returns delimiter found.

Pass in NULL for dest and -1 for size to just skip ahead. Note that if nothing is found, dest will contain the whole string, minus leading and trailing whitespace. You can scan for "" to conveniently grab the remainder of a string.

Definition at line 1922 of file shared.c.

Referenced by sg_load_map_owner(), sg_load_map_owner(), sg_load_map_worked(), sg_load_map_worked(), sg_load_player_vision(), and sg_load_player_vision().

◆ setup_langname()

const char * setup_langname ( void  )

Language environmental variable (with emulation).

Definition at line 1288 of file shared.c.

Referenced by init_nls(), and theme_read_toplevel().

◆ skip_leading_spaces()

char * skip_leading_spaces ( char s)

◆ skip_to_basename()

char * skip_to_basename ( char filepath)

Return a pointer to the start of the file basename in filepath. If the string contains no dir separator, it is returned itself.

Definition at line 1760 of file shared.c.

Referenced by scenario_list_callback().

◆ str_to_float()

bool str_to_float ( const char str,
float pfloat 
)

Convert 'str' to its float representation if possible. 'pfloat' can be NULL, then it will only test 'str' only contains a floating point number.

Definition at line 584 of file shared.c.

Referenced by entry_from_token().

◆ str_to_int()

bool str_to_int ( const char str,
int pint 
)

◆ str_to_uint()

bool str_to_uint ( const char str,
unsigned int pint 
)

Convert 'str' to its unsigned int representation if possible. 'pint' can be NULL, then it will only test 'str' only contains an unsigned integer number.

Definition at line 551 of file shared.c.

Referenced by log_parse_level_str(), and parse_options().

◆ switch_lang()

void switch_lang ( const char lang)

Switch to specified LANG

Definition at line 1441 of file shared.c.

◆ user_home_dir()

char * user_home_dir ( void  )

Returns string which gives users home dir, as specified by $HOME. Gets value once, and then caches result. If $HOME is not set, give a log message and returns NULL. Note the caller should not mess with the returned string.

Definition at line 634 of file shared.c.

Referenced by expand_dir(), get_gui_specific_themes_directories(), interpret_tilde(), and interpret_tilde_alloc().

◆ user_username()

char * user_username ( char buf,
size_t  bufsz 
)

Returns string which gives user's username, as specified by $USER or as given in password file for this user's uid, or a made up name if we can't get either of the above. Gets value once, and then caches result. Note the caller should not mess with returned string.

Definition at line 711 of file shared.c.

Referenced by client_main().

◆ wildcard_asterisk_fit()

static bool wildcard_asterisk_fit ( const char pattern,
const char test 
)
static

Test an asterisk in the pattern against test. Returns TRUE if test fit the pattern. May be recursive, as it calls wildcard_fit_string() itself (if many asterisks).

Definition at line 2029 of file shared.c.

Referenced by wildcard_fit_string().

◆ wildcard_fit_string()

bool wildcard_fit_string ( const char pattern,
const char test 
)

Returns TRUE if test fit the pattern. The pattern can contain special characters: '*': to specify a substitute for any zero or more characters. '?': to specify a substitute for any one character. '[...]': to specify a range of characters: '!': at the begenning of the range means that the matching result will be inverted 'A-Z': means any character between 'A' and 'Z'. 'agr': means 'a', 'g' or 'r'.

Definition at line 2155 of file shared.c.

Referenced by conn_pattern_match(), and wildcard_asterisk_fit().

◆ wildcard_range_fit()

static bool wildcard_range_fit ( const char **  pattern,
const char **  test 
)
static

Test a range in the pattern against test. Returns TRUE if **test fit the first range in *pattern.

Definition at line 2089 of file shared.c.

Referenced by wildcard_fit_string().

Variable Documentation

◆ base64url

const char base64url[]
static
Initial value:
=
"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_"

Definition at line 103 of file shared.c.

Referenced by is_base64url(), is_safe_filename(), and randomize_base64url_string().

◆ data_dir_names

struct strvec* data_dir_names = NULL
static

Definition at line 106 of file shared.c.

Referenced by free_data_dir_names(), and get_data_dirs().

◆ grouping

char* grouping = NULL
static

◆ grouping_sep

char* grouping_sep = NULL
static

Definition at line 99 of file shared.c.

Referenced by big_int_to_text(), free_nls(), and init_nls().

◆ home_dir_user

char* home_dir_user = NULL
static

Definition at line 111 of file shared.c.

Referenced by free_user_home_dir(), and user_home_dir().

◆ mc_group

char* mc_group = NULL
static

Definition at line 110 of file shared.c.

Referenced by free_multicast_group(), and get_multicast_group().

◆ realfile

struct astring realfile = ASTRING_INIT
static

Definition at line 114 of file shared.c.

Referenced by fileinfoname(), and free_fileinfo_data().

◆ save_dir_names

struct strvec* save_dir_names = NULL
static

Definition at line 107 of file shared.c.

Referenced by free_data_dir_names(), and get_save_dirs().

◆ scenario_dir_names

struct strvec* scenario_dir_names = NULL
static

Definition at line 108 of file shared.c.

Referenced by free_data_dir_names(), and get_scenario_dirs().

◆ storage_dir_freeciv

char* storage_dir_freeciv = NULL
static

Definition at line 112 of file shared.c.

Referenced by free_freeciv_storage_dir(), and freeciv_storage_dir().