309 lines
7.8 KiB
C
309 lines
7.8 KiB
C
#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#undef alloca
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#ifdef HAVE_ALLOCA_H
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# include <alloca.h>
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#elif defined __GNUC__
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# define alloca __builtin_alloca
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#elif defined _AIX
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# define alloca __alloca
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#elif defined _MSC_VER
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# include <malloc.h>
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# define alloca _alloca
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#else
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# include <stddef.h>
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# ifdef __cplusplus
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extern "C"
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# endif
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void *alloca (size_t);
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#endif
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#include <stdio.h>
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#include <string.h>
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#include <limits.h>
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#include <unistd.h>
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#include "Efreet.h"
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#include "efreet_private.h"
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static Efreet_Version _version = { VMAJ, VMIN, VMIC, VREV };
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EAPI Efreet_Version *efreet_version = &_version;
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#ifdef _WIN32
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# define EFREET_PATH_SEP ';'
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#else
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# define EFREET_PATH_SEP ':'
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#endif
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static const char *efreet_home_dir = NULL;
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static const char *xdg_data_home = NULL;
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static const char *xdg_config_home = NULL;
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static const char *xdg_cache_home = NULL;
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static Eina_List *xdg_data_dirs = NULL;
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static Eina_List *xdg_config_dirs = NULL;
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static const char *hostname = NULL;
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/* define macros and variable for using the eina logging system */
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#ifdef EFREET_MODULE_LOG_DOM
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#undef EFREET_MODULE_LOG_DOM
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#endif
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#define EFREET_MODULE_LOG_DOM _efreet_base_log_dom
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static int _efreet_base_log_dom = -1;
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static const char *efreet_dir_get(const char *key, const char *fallback);
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static Eina_List *efreet_dirs_get(const char *key,
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const char *fallback);
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/**
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* @internal
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* @return Returns 1 on success or 0 on failure
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* @brief Initializes the efreet base settings
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*/
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int
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efreet_base_init(void)
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{
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_efreet_base_log_dom = eina_log_domain_register
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("efreet_base", EFREET_DEFAULT_LOG_COLOR);
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if (_efreet_base_log_dom < 0)
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{
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ERROR("Efreet: Could not create a log domain for efreet_base.\n");
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return 0;
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}
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return 1;
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}
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/**
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* @internal
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* @return Returns no value
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* @brief Cleans up the efreet base settings system
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*/
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void
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efreet_base_shutdown(void)
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{
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IF_RELEASE(efreet_home_dir);
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IF_RELEASE(xdg_data_home);
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IF_RELEASE(xdg_config_home);
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IF_RELEASE(xdg_cache_home);
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IF_FREE_LIST(xdg_data_dirs, eina_stringshare_del);
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IF_FREE_LIST(xdg_config_dirs, eina_stringshare_del);
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IF_RELEASE(hostname);
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eina_log_domain_unregister(_efreet_base_log_dom);
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}
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/**
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* @internal
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* @return Returns the users home directory
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* @brief Gets the users home directory and returns it.
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*
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* Needs EAPI because of helper binaries
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*/
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EAPI const char *
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efreet_home_dir_get(void)
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{
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if (efreet_home_dir) return efreet_home_dir;
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efreet_home_dir = getenv("HOME");
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#ifdef _WIN32
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if (!efreet_home_dir || efreet_home_dir[0] == '\0')
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efreet_home_dir = getenv("USERPROFILE");
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#endif
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if (!efreet_home_dir || efreet_home_dir[0] == '\0')
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efreet_home_dir = "/tmp";
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efreet_home_dir = eina_stringshare_add(efreet_home_dir);
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return efreet_home_dir;
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}
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/**
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* @return Returns the XDG Data Home directory
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* @brief Retrieves the XDG Data Home directory
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*/
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EAPI const char *
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efreet_data_home_get(void)
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{
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if (xdg_data_home) return xdg_data_home;
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xdg_data_home = efreet_dir_get("XDG_DATA_HOME", "/.local/share");
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return xdg_data_home;
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}
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/**
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* @return Returns the Eina_List of preference ordered extra data directories
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* @brief Returns the Eina_List of prefernece oredred extra data
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* directories
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*
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* @note The returned list is static inside Efreet. If you add/remove from the
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* list then the next call to efreet_data_dirs_get() will return your
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* modified values. DO NOT free this list.
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*/
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EAPI Eina_List *
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efreet_data_dirs_get(void)
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{
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#ifdef _WIN32
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char buf[4096];
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#endif
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if (xdg_data_dirs) return xdg_data_dirs;
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#ifdef _WIN32
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snprintf(buf, 4096, "%s\\Efl;" PACKAGE_DATA_DIR ";/usr/share;/usr/local/share", getenv("APPDATA"));
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xdg_data_dirs = efreet_dirs_get("XDG_DATA_DIRS", buf);
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#else
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xdg_data_dirs = efreet_dirs_get("XDG_DATA_DIRS",
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PACKAGE_DATA_DIR ":/usr/share:/usr/local/share");
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#endif
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return xdg_data_dirs;
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}
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/**
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* @return Returns the XDG Config Home directory
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* @brief Retrieves the XDG Config Home directory
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*/
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EAPI const char *
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efreet_config_home_get(void)
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{
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if (xdg_config_home) return xdg_config_home;
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xdg_config_home = efreet_dir_get("XDG_CONFIG_HOME", "/.config");
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return xdg_config_home;
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}
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/**
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* @return Returns the Eina_List of preference ordered extra config directories
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* @brief Returns the Eina_List of prefernece ordered extra config
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* directories
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*
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* @note The returned list is static inside Efreet. If you add/remove from the
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* list then the next call to efreet_config_dirs_get() will return your
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* modified values. DO NOT free this list.
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*/
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EAPI Eina_List *
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efreet_config_dirs_get(void)
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{
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if (xdg_config_dirs) return xdg_config_dirs;
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xdg_config_dirs = efreet_dirs_get("XDG_CONFIG_DIRS", "/etc/xdg");
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return xdg_config_dirs;
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}
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/**
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* @return Returns the XDG Cache Home directory
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* @brief Retrieves the XDG Cache Home directory
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*/
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EAPI const char *
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efreet_cache_home_get(void)
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{
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if (xdg_cache_home) return xdg_cache_home;
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xdg_cache_home = efreet_dir_get("XDG_CACHE_HOME", "/.cache");
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return xdg_cache_home;
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}
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/**
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* @return Returns the current hostname
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* @brief Returns the current hostname or empty string if not found
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*/
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EAPI const char *
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efreet_hostname_get(void)
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{
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char buf[256];
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if (hostname) return hostname;
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if (gethostname(buf, sizeof(buf)) < 0)
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hostname = eina_stringshare_add("");
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else
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hostname = eina_stringshare_add(buf);
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return hostname;
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}
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/**
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* @internal
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* @param key The environemnt key to lookup
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* @param fallback The fallback value to use
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* @return Returns the directory related to the given key or the fallback
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* @brief This trys to determine the correct directory name given the
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* environment key @a key and fallbacks @a fallback.
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*/
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static const char *
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efreet_dir_get(const char *key, const char *fallback)
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{
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char *dir;
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const char *t;
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dir = getenv(key);
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if (!dir || dir[0] == '\0')
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{
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int len;
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const char *user;
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user = efreet_home_dir_get();
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len = strlen(user) + strlen(fallback) + 1;
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dir = malloc(len);
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if (!dir) return NULL;
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snprintf(dir, len, "%s%s", user, fallback);
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t = eina_stringshare_add(dir);
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FREE(dir);
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}
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else t = eina_stringshare_add(dir);
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return t;
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}
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/**
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* @internal
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* @param key The environment key to lookup
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* @param fallback The fallback value to use
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* @return Returns a list of directories specified by the given key @a key
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* or from the list of fallbacks in @a fallback.
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* @brief Creates a list of directories as given in the environment key @a
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* key or from the fallbacks in @a fallback
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*/
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static Eina_List *
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efreet_dirs_get(const char *key, const char *fallback)
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{
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Eina_List *dirs = NULL;
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const char *path;
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char *tmp, *s, *p;
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char ts[PATH_MAX];
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size_t len;
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path = getenv(key);
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if (!path || (path[0] == '\0')) path = fallback;
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if (!path) return dirs;
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len = strlen(path) + 1;
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tmp = alloca(len);
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memcpy(tmp, path, len);
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s = tmp;
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p = strchr(s, EFREET_PATH_SEP);
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while (p)
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{
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*p = '\0';
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if (!eina_list_search_unsorted(dirs, EINA_COMPARE_CB(strcmp), s))
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{
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// resolve path properly/fully to remove path//path2 to
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// path/path2, path/./path2 to path/path2 etc.
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if (realpath(s, ts))
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dirs = eina_list_append(dirs, (void *)eina_stringshare_add(ts));
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}
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s = ++p;
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p = strchr(s, EFREET_PATH_SEP);
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}
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if (!eina_list_search_unsorted(dirs, EINA_COMPARE_CB(strcmp), s))
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{
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// resolve path properly/fully to remove path//path2 to
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// path/path2, path/./path2 to path/path2 etc.
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if (realpath(s, ts))
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dirs = eina_list_append(dirs, (void *)eina_stringshare_add(ts));
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}
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return dirs;
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}
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