update sd-daemon.[ch]

[elogind.git] / udev / sd-daemon.c

diff --git a/udev/sd-daemon.c b/udev/sd-daemon.c
index 6d1eebff07c68a977abc325a3c9c3592839a24ee..a2ec74cceb59a744f9bec7486972832896cdb2ff 100644 (file)
--- a/udev/sd-daemon.c
+++ b/udev/sd-daemon.c
@@ -41,10 +41,21 @@
 #include <stdarg.h>
 #include <stdio.h>
 #include <stddef.h>
 #include <stdarg.h>
 #include <stdio.h>
 #include <stddef.h>

+#include <limits.h>
+
+#if defined(__linux__)
+#include <mqueue.h>
+#endif

 
 #include "sd-daemon.h"
 
 
 #include "sd-daemon.h"
 

-int sd_listen_fds(int unset_environment) {
+#if (__GNUC__ >= 4) && !defined(SD_EXPORT_SYMBOLS)
+#define _sd_hidden_ __attribute__ ((visibility("hidden")))
+#else
+#define _sd_hidden_
+#endif
+
+_sd_hidden_ int sd_listen_fds(int unset_environment) {

 
 #if defined(DISABLE_SYSTEMD) || !defined(__linux__)
         return 0;
 
 #if defined(DISABLE_SYSTEMD) || !defined(__linux__)
         return 0;


@@ -125,7 +136,7 @@ finish:
 #endif
 }
 
 #endif
 }
 

-int sd_is_fifo(int fd, const char *path) {
+_sd_hidden_ int sd_is_fifo(int fd, const char *path) {

         struct stat st_fd;
 
         if (fd < 0)
         struct stat st_fd;
 
         if (fd < 0)


@@ -158,6 +169,42 @@ int sd_is_fifo(int fd, const char *path) {
         return 1;
 }
 
         return 1;
 }
 

+_sd_hidden_ int sd_is_special(int fd, const char *path) {
+        struct stat st_fd;
+
+        if (fd < 0)
+                return -EINVAL;
+
+        if (fstat(fd, &st_fd) < 0)
+                return -errno;
+
+        if (!S_ISREG(st_fd.st_mode) && !S_ISCHR(st_fd.st_mode))
+                return 0;
+
+        if (path) {
+                struct stat st_path;
+
+                if (stat(path, &st_path) < 0) {
+
+                        if (errno == ENOENT || errno == ENOTDIR)
+                                return 0;
+
+                        return -errno;
+                }
+
+                if (S_ISREG(st_fd.st_mode) && S_ISREG(st_path.st_mode))
+                        return
+                                st_path.st_dev == st_fd.st_dev &&
+                                st_path.st_ino == st_fd.st_ino;
+                else if (S_ISCHR(st_fd.st_mode) && S_ISCHR(st_path.st_mode))
+                        return st_path.st_rdev == st_fd.st_rdev;
+                else
+                        return 0;
+        }
+
+        return 1;
+}
+

 static int sd_is_socket_internal(int fd, int type, int listening) {
         struct stat st_fd;
 
 static int sd_is_socket_internal(int fd, int type, int listening) {
         struct stat st_fd;
 


@@ -209,7 +256,7 @@ union sockaddr_union {
         struct sockaddr_storage storage;
 };
 
         struct sockaddr_storage storage;
 };
 

-int sd_is_socket(int fd, int family, int type, int listening) {
+_sd_hidden_ int sd_is_socket(int fd, int family, int type, int listening) {

         int r;
 
         if (family < 0)
         int r;
 
         if (family < 0)


@@ -237,7 +284,7 @@ int sd_is_socket(int fd, int family, int type, int listening) {
         return 1;
 }
 
         return 1;
 }
 

-int sd_is_socket_inet(int fd, int family, int type, int listening, uint16_t port) {
+_sd_hidden_ int sd_is_socket_inet(int fd, int family, int type, int listening, uint16_t port) {

         union sockaddr_union sockaddr;
         socklen_t l;
         int r;
         union sockaddr_union sockaddr;
         socklen_t l;
         int r;


@@ -282,7 +329,7 @@ int sd_is_socket_inet(int fd, int family, int type, int listening, uint16_t port
         return 1;
 }
 
         return 1;
 }
 

-int sd_is_socket_unix(int fd, int type, int listening, const char *path, size_t length) {
+_sd_hidden_ int sd_is_socket_unix(int fd, int type, int listening, const char *path, size_t length) {

         union sockaddr_union sockaddr;
         socklen_t l;
         int r;
         union sockaddr_union sockaddr;
         socklen_t l;
         int r;


@@ -325,7 +372,44 @@ int sd_is_socket_unix(int fd, int type, int listening, const char *path, size_t
         return 1;
 }
 
         return 1;
 }
 

-int sd_notify(int unset_environment, const char *state) {
+_sd_hidden_ int sd_is_mq(int fd, const char *path) {
+#if !defined(__linux__)
+        return 0;
+#else
+        struct mq_attr attr;
+
+        if (fd < 0)
+                return -EINVAL;
+
+        if (mq_getattr(fd, &attr) < 0)
+                return -errno;
+
+        if (path) {
+                char fpath[PATH_MAX];
+                struct stat a, b;
+
+                if (path[0] != '/')
+                        return -EINVAL;
+
+                if (fstat(fd, &a) < 0)
+                        return -errno;
+
+                strncpy(stpcpy(fpath, "/dev/mqueue"), path, sizeof(fpath) - 12);
+                fpath[sizeof(fpath)-1] = 0;
+
+                if (stat(fpath, &b) < 0)
+                        return -errno;
+
+                if (a.st_dev != b.st_dev ||
+                    a.st_ino != b.st_ino)
+                        return 0;
+        }
+
+        return 1;
+#endif
+}
+
+_sd_hidden_ int sd_notify(int unset_environment, const char *state) {

 #if defined(DISABLE_SYSTEMD) || !defined(__linux__) || !defined(SOCK_CLOEXEC)
         return 0;
 #else
 #if defined(DISABLE_SYSTEMD) || !defined(__linux__) || !defined(SOCK_CLOEXEC)
         return 0;
 #else


@@ -393,7 +477,7 @@ finish:
 #endif
 }
 
 #endif
 }
 

-int sd_notifyf(int unset_environment, const char *format, ...) {
+_sd_hidden_ int sd_notifyf(int unset_environment, const char *format, ...) {

 #if defined(DISABLE_SYSTEMD) || !defined(__linux__)
         return 0;
 #else
 #if defined(DISABLE_SYSTEMD) || !defined(__linux__)
         return 0;
 #else


@@ -415,7 +499,7 @@ int sd_notifyf(int unset_environment, const char *format, ...) {
 #endif
 }
 
 #endif
 }
 

-int sd_booted(void) {
+_sd_hidden_ int sd_booted(void) {

 #if defined(DISABLE_SYSTEMD) || !defined(__linux__)
         return 0;
 #else
 #if defined(DISABLE_SYSTEMD) || !defined(__linux__)
         return 0;
 #else