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Diffstat (limited to 'src/basic/proc-cmdline.c')
| -rw-r--r-- | src/basic/proc-cmdline.c | 191 |
1 files changed, 0 insertions, 191 deletions
diff --git a/src/basic/proc-cmdline.c b/src/basic/proc-cmdline.c deleted file mode 100644 index 8297a222b7..0000000000 --- a/src/basic/proc-cmdline.c +++ /dev/null @@ -1,191 +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 <stdbool.h> -#include <stddef.h> -#include <string.h> - -#include "alloc-util.h" -#include "extract-word.h" -#include "fileio.h" -#include "macro.h" -#include "parse-util.h" -#include "proc-cmdline.h" -#include "process-util.h" -#include "special.h" -#include "string-util.h" -#include "util.h" -#include "virt.h" - -int proc_cmdline(char **ret) { - assert(ret); - - if (detect_container() > 0) - return get_process_cmdline(1, 0, false, ret); - else - return read_one_line_file("/proc/cmdline", ret); -} - -int parse_proc_cmdline(int (*parse_item)(const char *key, const char *value, void *data), - void *data, - bool strip_prefix) { - _cleanup_free_ char *line = NULL; - const char *p; - int r; - - assert(parse_item); - - r = proc_cmdline(&line); - if (r < 0) - return r; - - p = line; - for (;;) { - _cleanup_free_ char *word = NULL; - char *value = NULL, *unprefixed; - - r = extract_first_word(&p, &word, NULL, EXTRACT_QUOTES|EXTRACT_RELAX); - if (r < 0) - return r; - if (r == 0) - break; - - /* Filter out arguments that are intended only for the - * initrd */ - unprefixed = startswith(word, "rd."); - if (unprefixed && !in_initrd()) - continue; - - value = strchr(word, '='); - if (value) - *(value++) = 0; - - r = parse_item(strip_prefix && unprefixed ? unprefixed : word, value, data); - if (r < 0) - return r; - } - - return 0; -} - -int get_proc_cmdline_key(const char *key, char **value) { - _cleanup_free_ char *line = NULL, *ret = NULL; - bool found = false; - const char *p; - int r; - - assert(key); - - r = proc_cmdline(&line); - if (r < 0) - return r; - - p = line; - for (;;) { - _cleanup_free_ char *word = NULL; - const char *e; - - r = extract_first_word(&p, &word, NULL, EXTRACT_QUOTES|EXTRACT_RELAX); - if (r < 0) - return r; - if (r == 0) - break; - - /* Filter out arguments that are intended only for the - * initrd */ - if (!in_initrd() && startswith(word, "rd.")) - continue; - - if (value) { - e = startswith(word, key); - if (!e) - continue; - - r = free_and_strdup(&ret, e); - if (r < 0) - return r; - - found = true; - } else { - if (streq(word, key)) - found = true; - } - } - - if (value) { - *value = ret; - ret = NULL; - } - - return found; - -} - -int shall_restore_state(void) { - _cleanup_free_ char *value = NULL; - int r; - - r = get_proc_cmdline_key("systemd.restore_state=", &value); - if (r < 0) - return r; - if (r == 0) - return true; - - return parse_boolean(value); -} - -static const char * const rlmap[] = { - "emergency", SPECIAL_EMERGENCY_TARGET, - "-b", SPECIAL_EMERGENCY_TARGET, - "rescue", SPECIAL_RESCUE_TARGET, - "single", SPECIAL_RESCUE_TARGET, - "-s", SPECIAL_RESCUE_TARGET, - "s", SPECIAL_RESCUE_TARGET, - "S", SPECIAL_RESCUE_TARGET, - "1", SPECIAL_RESCUE_TARGET, - "2", SPECIAL_MULTI_USER_TARGET, - "3", SPECIAL_MULTI_USER_TARGET, - "4", SPECIAL_MULTI_USER_TARGET, - "5", SPECIAL_GRAPHICAL_TARGET, - NULL -}; - -static const char * const rlmap_initrd[] = { - "emergency", SPECIAL_EMERGENCY_TARGET, - "rescue", SPECIAL_RESCUE_TARGET, - NULL -}; - -const char* runlevel_to_target(const char *word) { - size_t i; - const char * const *rlmap_ptr = in_initrd() ? rlmap_initrd - : rlmap; - - if (!word) - return NULL; - - if (in_initrd() && (word = startswith(word, "rd.")) == NULL) - return NULL; - - for (i = 0; rlmap_ptr[i] != NULL; i += 2) - if (streq(word, rlmap_ptr[i])) - return rlmap_ptr[i+1]; - - return NULL; -} |