util: unify SO_PEERCRED/SO_PEERSEC invocations

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

diff --git a/src/shared/util.h b/src/shared/util.h
index e46438c92db81da75efa9b970ff8d365791b6f43..57667ef895a4629164a05afe152d2fbc869a39d3 100644 (file)
--- a/src/shared/util.h
+++ b/src/shared/util.h
@@ -40,16 +40,11 @@
 #include <unistd.h>
 #include <locale.h>
 #include <mntent.h>
+#include <sys/socket.h>
 
 #include "macro.h"
 #include "time-util.h"
 
-union dirent_storage {
-        struct dirent de;
-        uint8_t storage[offsetof(struct dirent, d_name) +
-                        ((NAME_MAX + 1 + sizeof(long)) & ~(sizeof(long) - 1))];
-};
-
 /* What is interpreted as whitespace? */
 #define WHITESPACE " \t\n\r"
 #define NEWLINE "\n\r"
@@ -64,6 +59,7 @@ union dirent_storage {
 #define ANSI_GREEN_ON "\x1B[32m"
 #define ANSI_HIGHLIGHT_GREEN_ON "\x1B[1;32m"
 #define ANSI_HIGHLIGHT_YELLOW_ON "\x1B[1;33m"
+#define ANSI_HIGHLIGHT_BLUE_ON "\x1B[1;34m"
 #define ANSI_HIGHLIGHT_OFF "\x1B[0m"
 #define ANSI_ERASE_TO_END_OF_LINE "\x1B[K"
 
@@ -91,6 +87,10 @@ static inline const char* yes_no(bool b) {
         return b ? "yes" : "no";
 }
 
+static inline const char* true_false(bool b) {
+        return b ? "true" : "false";
+}
+
 static inline const char* strempty(const char *s) {
         return s ? s : "";
 }
@@ -250,8 +250,19 @@ int make_stdio(int fd);
 int make_null_stdio(void);
 int make_console_stdio(void);
 
-unsigned long long random_ull(void);
-unsigned random_u(void);
+void random_bytes(void *p, size_t n);
+
+static inline uint64_t random_u64(void) {
+        uint64_t u;
+        random_bytes(&u, sizeof(u));
+        return u;
+}
+
+static inline uint32_t random_u32(void) {
+        uint32_t u;
+        random_bytes(&u, sizeof(u));
+        return u;
+}
 
 /* For basic lookup tables with strictly enumerated entries */
 #define __DEFINE_STRING_TABLE_LOOKUP(name,type,scope)                   \
@@ -399,6 +410,10 @@ static inline const char *ansi_highlight_yellow(void) {
         return on_tty() ? ANSI_HIGHLIGHT_YELLOW_ON : "";
 }
 
+static inline const char *ansi_highlight_blue(void) {
+        return on_tty() ? ANSI_HIGHLIGHT_BLUE_ON : "";
+}
+
 static inline const char *ansi_highlight_off(void) {
         return on_tty() ? ANSI_HIGHLIGHT_OFF : "";
 }
@@ -417,7 +432,7 @@ 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);
 
-_noreturn_ void freeze(void);
+noreturn void freeze(void);
 
 bool null_or_empty(struct stat *st) _pure_;
 int null_or_empty_path(const char *fn);
@@ -552,6 +567,7 @@ bool in_initrd(void);
 void warn_melody(void);
 
 int get_home_dir(char **ret);
+int get_shell(char **_ret);
 
 static inline void freep(void *p) {
         free(*(void**) p);
@@ -636,7 +652,6 @@ int on_ac_power(void);
 
 int search_and_fopen(const char *path, const char *mode, const char **search, FILE **_f);
 int search_and_fopen_nulstr(const char *path, const char *mode, const char *search, FILE **_f);
-int create_tmp_dir(char template[], char** dir_name);
 
 #define FOREACH_LINE(line, f, on_error)                         \
         for (;;)                                                \
@@ -670,8 +685,11 @@ char *strextend(char **x, ...) _sentinel_;
 char *strrep(const char *s, unsigned n);
 
 void* greedy_realloc(void **p, size_t *allocated, size_t need);
+void* greedy_realloc0(void **p, size_t *allocated, size_t need);
 #define GREEDY_REALLOC(array, allocated, need) \
         greedy_realloc((void**) &(array), &(allocated), sizeof((array)[0]) * (need))
+#define GREEDY_REALLOC0(array, allocated, need) \
+        greedy_realloc0((void**) &(array), &(allocated), sizeof((array)[0]) * (need))
 
 static inline void _reset_errno_(int *saved_errno) {
         errno = *saved_errno;
@@ -787,3 +805,13 @@ static inline void qsort_safe(void *base, size_t nmemb, size_t size,
 }
 
 int proc_cmdline(char **ret);
+
+int container_get_leader(const char *machine, pid_t *pid);
+
+int namespace_open(pid_t pid, int *pidns_fd, int *mntns_fd, int *root_fd);
+int namespace_enter(int pidns_fd, int mntns_fd, int root_fd);
+
+bool pid_valid(pid_t pid);
+
+int getpeercred(int fd, struct ucred *ucred);
+int getpeersec(int fd, char **ret);