machine-id-setup: add a machine_id_commit call to commit on disk a transient machine-id

[elogind.git] / src / shared / util.h

diff --git a/src/shared/util.h b/src/shared/util.h
index e405b02a8189760d4a9a773c160f330baba20bc7..0b7c77b1d4157a30a3b632e7739f0bb61fa5f14d 100644 (file)
--- a/src/shared/util.h
+++ b/src/shared/util.h
@@ -112,7 +112,7 @@
 #define ANSI_HIGHLIGHT_OFF "\x1B[0m"
 #define ANSI_ERASE_TO_END_OF_LINE "\x1B[K"
 
-size_t page_size(void);
+size_t page_size(void) _pure_;
 #define PAGE_ALIGN(l) ALIGN_TO((l), page_size())
 
 #define streq(a,b) (strcmp((a),(b)) == 0)
@@ -245,6 +245,9 @@ static inline int safe_atoi64(const char *s, int64_t *ret_i) {
         return safe_atolli(s, (long long int*) ret_i);
 }
 
+int safe_atou16(const char *s, uint16_t *ret);
+int safe_atoi16(const char *s, int16_t *ret);
+
 const char* split(const char **state, size_t *l, const char *separator, bool quoted);
 
 #define FOREACH_WORD(word, length, s, state)                            \
@@ -270,6 +273,7 @@ char **replace_env_argv(char **argv, char **env);
 
 int readlinkat_malloc(int fd, const char *p, char **ret);
 int readlink_malloc(const char *p, char **r);
+int readlink_value(const char *p, char **ret);
 int readlink_and_make_absolute(const char *p, char **r);
 int readlink_and_canonicalize(const char *p, char **r);
 
@@ -291,6 +295,9 @@ int get_process_exe(pid_t pid, char **name);
 int get_process_uid(pid_t pid, uid_t *uid);
 int get_process_gid(pid_t pid, gid_t *gid);
 int get_process_capeff(pid_t pid, char **capeff);
+int get_process_cwd(pid_t pid, char **cwd);
+int get_process_root(pid_t pid, char **root);
+int get_process_environ(pid_t pid, char **environ);
 
 char hexchar(int x) _const_;
 int unhexchar(char c) _const_;
@@ -447,6 +454,8 @@ int get_ctty(pid_t, dev_t *_devnr, char **r);
 int chmod_and_chown(const char *path, mode_t mode, uid_t uid, gid_t gid);
 int fchmod_and_fchown(int fd, mode_t mode, uid_t uid, gid_t gid);
 
+int is_fd_on_temporary_fs(int fd);
+
 int rm_rf_children(int fd, bool only_dirs, bool honour_sticky, struct stat *root_dev);
 int rm_rf_children_dangerous(int fd, bool only_dirs, bool honour_sticky, struct stat *root_dev);
 int rm_rf(const char *path, bool only_dirs, bool delete_root, bool honour_sticky);
@@ -506,7 +515,7 @@ char *unquote(const char *s, const char *quotes);
 char *normalize_env_assignment(const char *s);
 
 int wait_for_terminate(pid_t pid, siginfo_t *status);
-int wait_for_terminate_and_warn(const char *name, pid_t pid);
+int wait_for_terminate_and_warn(const char *name, pid_t pid, bool check_exit_code);
 
 noreturn void freeze(void);
 
@@ -582,8 +591,6 @@ static inline bool _pure_ in_charset(const char *s, const char* charset) {
 
 int block_get_whole_disk(dev_t d, dev_t *ret);
 
-int file_is_priv_sticky(const char *p);
-
 #define NULSTR_FOREACH(i, l)                                    \
         for ((i) = (l); (i) && *(i); (i) = strchr((i), 0)+1)
 
@@ -794,6 +801,15 @@ static inline void _reset_errno_(int *saved_errno) {
 
 #define PROTECT_ERRNO _cleanup_(_reset_errno_) __attribute__((unused)) int _saved_errno_ = errno
 
+static inline int negative_errno(void) {
+        /* This helper should be used to shut up gcc if you know 'errno' is
+         * negative. Instead of "return -errno;", use "return negative_errno();"
+         * It will suppress bogus gcc warnings in case it assumes 'errno' might
+         * be 0 and thus the caller's error-handling might not be triggered. */
+        assert_return(errno > 0, -EINVAL);
+        return -errno;
+}
+
 struct _umask_struct_ {
         mode_t mask;
         bool quit;
@@ -958,6 +974,7 @@ static inline void qsort_safe(void *base, size_t nmemb, size_t size,
 
 int proc_cmdline(char **ret);
 int parse_proc_cmdline(int (*parse_word)(const char *key, const char *value));
+int get_proc_cmdline_key(const char *parameter, char **value);
 
 int container_get_leader(const char *machine, pid_t *pid);
 
@@ -1009,7 +1026,7 @@ int take_password_lock(const char *root);
 int is_symlink(const char *path);
 int is_dir(const char *path, bool follow);
 
-int unquote_first_word(const char **p, char **ret);
+int unquote_first_word(const char **p, char **ret, bool relax);
 int unquote_many_words(const char **p, ...) _sentinel_;
 
 int free_and_strdup(char **p, const char *s);