diff options
author | Luke Shumaker <lukeshu@sbcglobal.net> | 2016-05-25 23:32:14 -0400 |
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committer | Luke Shumaker <lukeshu@sbcglobal.net> | 2016-05-25 23:32:14 -0400 |
commit | 0629b78d815ce6a0b65aecc02fb18a122226274c (patch) | |
tree | 4715d40a85a08ea4f5fcbb30ca70db70d31e23b1 /src/shared/path-lookup.c | |
parent | f5e7d6cf6b513104f051442b01e8b3bca7523709 (diff) |
stuff
Diffstat (limited to 'src/shared/path-lookup.c')
-rw-r--r-- | src/shared/path-lookup.c | 441 |
1 files changed, 0 insertions, 441 deletions
diff --git a/src/shared/path-lookup.c b/src/shared/path-lookup.c deleted file mode 100644 index 5410620725..0000000000 --- a/src/shared/path-lookup.c +++ /dev/null @@ -1,441 +0,0 @@ -/*** - This file is part of systemd. - - Copyright 2010 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <errno.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> - -#include "alloc-util.h" -#include "install.h" -#include "log.h" -#include "macro.h" -#include "path-lookup.h" -#include "path-util.h" -#include "string-util.h" -#include "strv.h" -#include "util.h" - -int user_config_home(char **config_home) { - const char *e; - char *r; - - e = getenv("XDG_CONFIG_HOME"); - if (e) { - r = strappend(e, "/systemd/user"); - if (!r) - return -ENOMEM; - - *config_home = r; - return 1; - } else { - const char *home; - - home = getenv("HOME"); - if (home) { - r = strappend(home, "/.config/systemd/user"); - if (!r) - return -ENOMEM; - - *config_home = r; - return 1; - } - } - - return 0; -} - -int user_runtime_dir(char **runtime_dir) { - const char *e; - char *r; - - e = getenv("XDG_RUNTIME_DIR"); - if (e) { - r = strappend(e, "/systemd/user"); - if (!r) - return -ENOMEM; - - *runtime_dir = r; - return 1; - } - - return 0; -} - -static int user_data_home_dir(char **dir, const char *suffix) { - const char *e; - char *res; - - /* We don't treat /etc/xdg/systemd here as the spec - * suggests because we assume that that is a link to - * /etc/systemd/ anyway. */ - - e = getenv("XDG_DATA_HOME"); - if (e) - res = strappend(e, suffix); - else { - const char *home; - - home = getenv("HOME"); - if (home) - res = strjoin(home, "/.local/share", suffix, NULL); - else - return 0; - } - if (!res) - return -ENOMEM; - - *dir = res; - return 0; -} - -static char** user_dirs( - const char *generator, - const char *generator_early, - const char *generator_late) { - - const char * const config_unit_paths[] = { - USER_CONFIG_UNIT_PATH, - "/etc/systemd/user", - NULL - }; - - const char * const runtime_unit_path = "/run/systemd/user"; - - const char * const data_unit_paths[] = { - "/usr/local/lib/systemd/user", - "/usr/local/share/systemd/user", - USER_DATA_UNIT_PATH, - "/usr/lib/systemd/user", - "/usr/share/systemd/user", - NULL - }; - - const char *e; - _cleanup_free_ char *config_home = NULL, *runtime_dir = NULL, *data_home = NULL; - _cleanup_strv_free_ char **config_dirs = NULL, **data_dirs = NULL; - _cleanup_free_ char **res = NULL; - char **tmp; - int r; - - /* Implement the mechanisms defined in - * - * http://standards.freedesktop.org/basedir-spec/basedir-spec-0.6.html - * - * We look in both the config and the data dirs because we - * want to encourage that distributors ship their unit files - * as data, and allow overriding as configuration. - */ - - if (user_config_home(&config_home) < 0) - return NULL; - - if (user_runtime_dir(&runtime_dir) < 0) - return NULL; - - e = getenv("XDG_CONFIG_DIRS"); - if (e) { - config_dirs = strv_split(e, ":"); - if (!config_dirs) - return NULL; - } - - r = user_data_home_dir(&data_home, "/systemd/user"); - if (r < 0) - return NULL; - - e = getenv("XDG_DATA_DIRS"); - if (e) - data_dirs = strv_split(e, ":"); - else - data_dirs = strv_new("/usr/local/share", - "/usr/share", - NULL); - if (!data_dirs) - return NULL; - - /* Now merge everything we found. */ - if (generator_early) - if (strv_extend(&res, generator_early) < 0) - return NULL; - - if (config_home) - if (strv_extend(&res, config_home) < 0) - return NULL; - - if (!strv_isempty(config_dirs)) - if (strv_extend_strv_concat(&res, config_dirs, "/systemd/user") < 0) - return NULL; - - if (strv_extend_strv(&res, (char**) config_unit_paths, false) < 0) - return NULL; - - if (runtime_dir) - if (strv_extend(&res, runtime_dir) < 0) - return NULL; - - if (strv_extend(&res, runtime_unit_path) < 0) - return NULL; - - if (generator) - if (strv_extend(&res, generator) < 0) - return NULL; - - if (data_home) - if (strv_extend(&res, data_home) < 0) - return NULL; - - if (!strv_isempty(data_dirs)) - if (strv_extend_strv_concat(&res, data_dirs, "/systemd/user") < 0) - return NULL; - - if (strv_extend_strv(&res, (char**) data_unit_paths, false) < 0) - return NULL; - - if (generator_late) - if (strv_extend(&res, generator_late) < 0) - return NULL; - - if (path_strv_make_absolute_cwd(res) < 0) - return NULL; - - tmp = res; - res = NULL; - return tmp; -} - -char **generator_paths(ManagerRunningAs running_as) { - if (running_as == MANAGER_USER) - return strv_new("/run/systemd/user-generators", - "/etc/systemd/user-generators", - "/usr/local/lib/systemd/user-generators", - USER_GENERATOR_PATH, - NULL); - else - return strv_new("/run/systemd/system-generators", - "/etc/systemd/system-generators", - "/usr/local/lib/systemd/system-generators", - SYSTEM_GENERATOR_PATH, - NULL); -} - -int lookup_paths_init( - LookupPaths *p, - ManagerRunningAs running_as, - bool personal, - const char *root_dir, - const char *generator, - const char *generator_early, - const char *generator_late) { - - const char *e; - bool append = false; /* Add items from SYSTEMD_UNIT_PATH before normal directories */ - int r; - - assert(p); - - /* First priority is whatever has been passed to us via env - * vars */ - e = getenv("SYSTEMD_UNIT_PATH"); - if (e) { - if (endswith(e, ":")) { - e = strndupa(e, strlen(e) - 1); - append = true; - } - - /* FIXME: empty components in other places should be - * rejected. */ - - r = path_split_and_make_absolute(e, &p->unit_path); - if (r < 0) - return r; - } else - p->unit_path = NULL; - - if (!p->unit_path || append) { - /* Let's figure something out. */ - - _cleanup_strv_free_ char **unit_path; - - /* For the user units we include share/ in the search - * path in order to comply with the XDG basedir spec. - * For the system stuff we avoid such nonsense. OTOH - * we include /lib in the search path for the system - * stuff but avoid it for user stuff. */ - - if (running_as == MANAGER_USER) { - if (personal) - unit_path = user_dirs(generator, generator_early, generator_late); - else - unit_path = strv_new( - /* If you modify this you also want to modify - * systemduserunitpath= in systemd.pc.in, and - * the arrays in user_dirs() above! */ - STRV_IFNOTNULL(generator_early), - USER_CONFIG_UNIT_PATH, - "/etc/systemd/user", - "/run/systemd/user", - STRV_IFNOTNULL(generator), - "/usr/local/lib/systemd/user", - "/usr/local/share/systemd/user", - USER_DATA_UNIT_PATH, - "/usr/lib/systemd/user", - "/usr/share/systemd/user", - STRV_IFNOTNULL(generator_late), - NULL); - } else - unit_path = strv_new( - /* If you modify this you also want to modify - * systemdsystemunitpath= in systemd.pc.in! */ - STRV_IFNOTNULL(generator_early), - SYSTEM_CONFIG_UNIT_PATH, - "/etc/systemd/system", - "/run/systemd/system", - STRV_IFNOTNULL(generator), - "/usr/local/lib/systemd/system", - SYSTEM_DATA_UNIT_PATH, - "/usr/lib/systemd/system", -#ifdef HAVE_SPLIT_USR - "/lib/systemd/system", -#endif - STRV_IFNOTNULL(generator_late), - NULL); - - if (!unit_path) - return -ENOMEM; - - r = strv_extend_strv(&p->unit_path, unit_path, false); - if (r < 0) - return r; - } - - if (!path_strv_resolve_uniq(p->unit_path, root_dir)) - return -ENOMEM; - - if (!strv_isempty(p->unit_path)) { - _cleanup_free_ char *t = strv_join(p->unit_path, "\n\t"); - if (!t) - return -ENOMEM; - log_debug("Looking for unit files in (higher priority first):\n\t%s", t); - } else { - log_debug("Ignoring unit files."); - p->unit_path = strv_free(p->unit_path); - } - - if (running_as == MANAGER_SYSTEM) { -#ifdef HAVE_SYSV_COMPAT - /* /etc/init.d/ compatibility does not matter to users */ - - e = getenv("SYSTEMD_SYSVINIT_PATH"); - if (e) { - r = path_split_and_make_absolute(e, &p->sysvinit_path); - if (r < 0) - return r; - } else - p->sysvinit_path = NULL; - - if (strv_isempty(p->sysvinit_path)) { - strv_free(p->sysvinit_path); - - p->sysvinit_path = strv_new( - SYSTEM_SYSVINIT_PATH, /* /etc/init.d/ */ - NULL); - if (!p->sysvinit_path) - return -ENOMEM; - } - - e = getenv("SYSTEMD_SYSVRCND_PATH"); - if (e) { - r = path_split_and_make_absolute(e, &p->sysvrcnd_path); - if (r < 0) - return r; - } else - p->sysvrcnd_path = NULL; - - if (strv_isempty(p->sysvrcnd_path)) { - strv_free(p->sysvrcnd_path); - - p->sysvrcnd_path = strv_new( - SYSTEM_SYSVRCND_PATH, /* /etc/rcN.d/ */ - NULL); - if (!p->sysvrcnd_path) - return -ENOMEM; - } - - if (!path_strv_resolve_uniq(p->sysvinit_path, root_dir)) - return -ENOMEM; - - if (!path_strv_resolve_uniq(p->sysvrcnd_path, root_dir)) - return -ENOMEM; - - if (!strv_isempty(p->sysvinit_path)) { - _cleanup_free_ char *t = strv_join(p->sysvinit_path, "\n\t"); - if (!t) - return -ENOMEM; - log_debug("Looking for SysV init scripts in:\n\t%s", t); - } else { - log_debug("Ignoring SysV init scripts."); - p->sysvinit_path = strv_free(p->sysvinit_path); - } - - if (!strv_isempty(p->sysvrcnd_path)) { - _cleanup_free_ char *t = - strv_join(p->sysvrcnd_path, "\n\t"); - if (!t) - return -ENOMEM; - - log_debug("Looking for SysV rcN.d links in:\n\t%s", t); - } else { - log_debug("Ignoring SysV rcN.d links."); - p->sysvrcnd_path = strv_free(p->sysvrcnd_path); - } -#else - log_debug("SysV init scripts and rcN.d links support disabled"); -#endif - } - - return 0; -} - -void lookup_paths_free(LookupPaths *p) { - assert(p); - - p->unit_path = strv_free(p->unit_path); - -#ifdef HAVE_SYSV_COMPAT - p->sysvinit_path = strv_free(p->sysvinit_path); - p->sysvrcnd_path = strv_free(p->sysvrcnd_path); -#endif -} - -int lookup_paths_init_from_scope(LookupPaths *paths, - UnitFileScope scope, - const char *root_dir) { - assert(paths); - assert(scope >= 0); - assert(scope < _UNIT_FILE_SCOPE_MAX); - - zero(*paths); - - return lookup_paths_init(paths, - scope == UNIT_FILE_SYSTEM ? MANAGER_SYSTEM : MANAGER_USER, - scope == UNIT_FILE_USER, - root_dir, - NULL, NULL, NULL); -} |