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Diffstat (limited to 'src/core/unit-printf.c')
-rw-r--r-- | src/core/unit-printf.c | 346 |
1 files changed, 0 insertions, 346 deletions
diff --git a/src/core/unit-printf.c b/src/core/unit-printf.c deleted file mode 100644 index cbae45d9f7..0000000000 --- a/src/core/unit-printf.c +++ /dev/null @@ -1,346 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/*** - 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 "systemd/sd-id128.h" -#include "unit.h" -#include "specifier.h" -#include "path-util.h" -#include "strv.h" -#include "unit-name.h" -#include "unit-printf.h" - -static char *specifier_prefix_and_instance(char specifier, void *data, void *userdata) { - Unit *u = userdata; - assert(u); - - return unit_name_to_prefix_and_instance(u->id); -} - -static char *specifier_prefix(char specifier, void *data, void *userdata) { - Unit *u = userdata; - assert(u); - - return unit_name_to_prefix(u->id); -} - -static char *specifier_prefix_unescaped(char specifier, void *data, void *userdata) { - Unit *u = userdata; - char *p, *r; - - assert(u); - - p = unit_name_to_prefix(u->id); - if (!p) - return NULL; - - r = unit_name_unescape(p); - free(p); - - return r; -} - -static char *specifier_instance_unescaped(char specifier, void *data, void *userdata) { - Unit *u = userdata; - assert(u); - - if (u->instance) - return unit_name_unescape(u->instance); - - return strdup(""); -} - -static char *specifier_filename(char specifier, void *data, void *userdata) { - Unit *u = userdata; - assert(u); - - if (u->instance) - return unit_name_path_unescape(u->instance); - - return unit_name_to_path(u->id); -} - -static char *specifier_cgroup(char specifier, void *data, void *userdata) { - Unit *u = userdata; - assert(u); - - return unit_default_cgroup_path(u); -} - -static char *specifier_cgroup_root(char specifier, void *data, void *userdata) { - Unit *u = userdata; - char *p; - assert(u); - - if (specifier == 'r') - return strdup(u->manager->cgroup_hierarchy); - - if (path_get_parent(u->manager->cgroup_hierarchy, &p) < 0) - return strdup(""); - - if (streq(p, "/")) { - free(p); - return strdup(""); - } - - return p; -} - -static char *specifier_runtime(char specifier, void *data, void *userdata) { - Unit *u = userdata; - assert(u); - - if (u->manager->running_as == SYSTEMD_USER) { - const char *e; - - e = getenv("XDG_RUNTIME_DIR"); - if (e) - return strdup(e); - } - - return strdup("/run"); -} - -static char *specifier_user_name(char specifier, void *data, void *userdata) { - Unit *u = userdata; - ExecContext *c; - int r; - const char *username; - - assert(u); - - c = unit_get_exec_context(u); - if (!c) - return NULL; - - /* get USER env from our own env if set */ - if (!c->user) - return getusername_malloc(); - - /* fish username from passwd */ - username = c->user; - r = get_user_creds(&username, NULL, NULL, NULL, NULL); - if (r < 0) - return NULL; - - return strdup(username); -} - -static char *specifier_user_home(char specifier, void *data, void *userdata) { - Unit *u = userdata; - ExecContext *c; - int r; - const char *username, *home; - - assert(u); - - c = unit_get_exec_context(u); - if (!c) - return NULL; - - /* return HOME if set, otherwise from passwd */ - if (!c->user) { - char *h; - - r = get_home_dir(&h); - if (r < 0) - return NULL; - - return h; - } - - username = c->user; - r = get_user_creds(&username, NULL, NULL, &home, NULL); - if (r < 0) - return NULL; - - return strdup(home); -} - -static char *specifier_user_shell(char specifier, void *data, void *userdata) { - Unit *u = userdata; - ExecContext *c; - int r; - const char *username, *shell; - - assert(u); - - c = unit_get_exec_context(u); - if (!c) - return NULL; - - /* return HOME if set, otherwise from passwd */ - if (!c->user) { - char *sh; - - r = get_shell(&sh); - if (r < 0) - return strdup("/bin/sh"); - - return sh; - } - - username = c->user; - r = get_user_creds(&username, NULL, NULL, NULL, &shell); - if (r < 0) - return strdup("/bin/sh"); - - return strdup(shell); -} - -static char *specifier_machine_id(char specifier, void *data, void *userdata) { - sd_id128_t id; - char *buf; - int r; - - r = sd_id128_get_machine(&id); - if (r < 0) - return NULL; - - buf = new(char, 33); - if (!buf) - return NULL; - - return sd_id128_to_string(id, buf); -} - -static char *specifier_boot_id(char specifier, void *data, void *userdata) { - sd_id128_t id; - char *buf; - int r; - - r = sd_id128_get_boot(&id); - if (r < 0) - return NULL; - - buf = new(char, 33); - if (!buf) - return NULL; - - return sd_id128_to_string(id, buf); -} - -static char *specifier_host_name(char specifier, void *data, void *userdata) { - return gethostname_malloc(); -} - -char *unit_name_printf(Unit *u, const char* format) { - - /* - * This will use the passed string as format string and - * replace the following specifiers: - * - * %n: the full id of the unit (foo@bar.waldo) - * %N: the id of the unit without the suffix (foo@bar) - * %p: the prefix (foo) - * %i: the instance (bar) - */ - - const Specifier table[] = { - { 'n', specifier_string, u->id }, - { 'N', specifier_prefix_and_instance, NULL }, - { 'p', specifier_prefix, NULL }, - { 'i', specifier_string, u->instance }, - { 0, NULL, NULL } - }; - - assert(u); - assert(format); - - return specifier_printf(format, table, u); -} - -char *unit_full_printf(Unit *u, const char *format) { - - /* This is similar to unit_name_printf() but also supports - * unescaping. Also, adds a couple of additional codes: - * - * %f the the instance if set, otherwise the id - * %c cgroup path of unit - * %r root cgroup path of this systemd instance (e.g. "/user/lennart/shared/systemd-4711") - * %R parent of root cgroup path (e.g. "/usr/lennart/shared") - * %t the runtime directory to place sockets in (e.g. "/run" or $XDG_RUNTIME_DIR) - * %u the username of the configured user or running user - * %h the homedir of the configured user or running user - * %s the shell of the configured user or running user - * %m the machine ID of the running system - * %b the boot ID of the running system - * %H the host name of the running system - */ - - const Specifier table[] = { - { 'n', specifier_string, u->id }, - { 'N', specifier_prefix_and_instance, NULL }, - { 'p', specifier_prefix, NULL }, - { 'P', specifier_prefix_unescaped, NULL }, - { 'i', specifier_string, u->instance }, - { 'I', specifier_instance_unescaped, NULL }, - - { 'f', specifier_filename, NULL }, - { 'c', specifier_cgroup, NULL }, - { 'r', specifier_cgroup_root, NULL }, - { 'R', specifier_cgroup_root, NULL }, - { 't', specifier_runtime, NULL }, - { 'u', specifier_user_name, NULL }, - { 'h', specifier_user_home, NULL }, - { 's', specifier_user_shell, NULL }, - - { 'm', specifier_machine_id, NULL }, - { 'H', specifier_host_name, NULL }, - { 'b', specifier_boot_id, NULL }, - { 0, NULL, NULL } - }; - - assert(u); - assert(format); - - return specifier_printf(format, table, u); -} - -char **unit_full_printf_strv(Unit *u, char **l) { - size_t n; - char **r, **i, **j; - - /* Applies unit_full_printf to every entry in l */ - - assert(u); - - n = strv_length(l); - r = new(char*, n+1); - if (!r) - return NULL; - - for (i = l, j = r; *i; i++, j++) { - *j = unit_full_printf(u, *i); - if (!*j) - goto fail; - } - - *j = NULL; - return r; - -fail: - for (j--; j >= r; j--) - free(*j); - - free(r); - - return NULL; -} |