X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=src%2Fshared%2Fmissing.h;h=96e6d63101cb0161622b604d3fc53c466e17163d;hb=b32ff512191bf873266ee8067f6f6c8a30c96a5e;hp=df3fd0e839d59ef47882041e638bce112f7809f1;hpb=d4447f4d955d5bfbdec6feec8e332b8c126f474a;p=elogind.git

diff --git a/src/shared/missing.h b/src/shared/missing.h
index df3fd0e83..96e6d6310 100644
--- a/src/shared/missing.h
+++ b/src/shared/missing.h
@@ -26,6 +26,7 @@
 #include <sys/resource.h>
 #include <sys/syscall.h>
 #include <fcntl.h>
+#include <stdlib.h>
 #include <unistd.h>
 #include <linux/oom.h>
 
@@ -83,9 +84,11 @@
 #define IP_TRANSPARENT 19
 #endif
 
+#if !HAVE_DECL_PIVOT_ROOT
 static inline int pivot_root(const char *new_root, const char *put_old) {
         return syscall(SYS_pivot_root, new_root, put_old);
 }
+#endif
 
 #ifdef __x86_64__
 #  ifndef __NR_fanotify_init
@@ -126,13 +129,17 @@ static inline int pivot_root(const char *new_root, const char *put_old) {
 #  endif
 #endif
 
+#ifndef HAVE_FANOTIFY_INIT
 static inline int fanotify_init(unsigned int flags, unsigned int event_f_flags) {
         return syscall(__NR_fanotify_init, flags, event_f_flags);
 }
+#endif
 
+#ifndef HAVE_FANOTIFY_MARK
 static inline int fanotify_mark(int fanotify_fd, unsigned int flags, uint64_t mask,
                                 int dfd, const char *pathname) {
-#if defined _MIPS_SIM && _MIPS_SIM == _MIPS_SIM_ABI32 || defined __powerpc__ && !defined __powerpc64__
+#if defined _MIPS_SIM && _MIPS_SIM == _MIPS_SIM_ABI32 || defined __powerpc__ && !defined __powerpc64__ \
+	|| defined __arm__ && !defined __aarch64__
         union {
                 uint64_t _64;
                 uint32_t _32[2];
@@ -145,6 +152,7 @@ static inline int fanotify_mark(int fanotify_fd, unsigned int flags, uint64_t ma
         return syscall(__NR_fanotify_mark, fanotify_fd, flags, mask, dfd, pathname);
 #endif
 }
+#endif
 
 #ifndef BTRFS_IOCTL_MAGIC
 #define BTRFS_IOCTL_MAGIC 0x94
@@ -175,9 +183,11 @@ struct btrfs_ioctl_vol_args {
 #define MS_PRIVATE  (1 << 18)
 #endif
 
+#if !HAVE_DECL_GETTID
 static inline pid_t gettid(void) {
         return (pid_t) syscall(SYS_gettid);
 }
+#endif
 
 #ifndef SCM_SECURITY
 #define SCM_SECURITY 0x03
@@ -187,6 +197,14 @@ static inline pid_t gettid(void) {
 #define MS_STRICTATIME (1<<24)
 #endif
 
+#ifndef MS_REC
+#define MS_REC 16384
+#endif
+
+#ifndef MS_SHARED
+#define MS_SHARED (1<<20)
+#endif
+
 #ifndef PR_SET_NO_NEW_PRIVS
 #define PR_SET_NO_NEW_PRIVS 38
 #endif
@@ -194,3 +212,57 @@ static inline pid_t gettid(void) {
 #ifndef PR_SET_CHILD_SUBREAPER
 #define PR_SET_CHILD_SUBREAPER 36
 #endif
+
+#ifndef MAX_HANDLE_SZ
+#define MAX_HANDLE_SZ 128
+#endif
+
+#if defined __x86_64__
+#  ifndef __NR_name_to_handle_at
+#    define __NR_name_to_handle_at 303
+#  endif
+#elif defined __i386__
+#  ifndef __NR_name_to_handle_at
+#    define __NR_name_to_handle_at 341
+#  endif
+#elif defined __arm__
+#  ifndef __NR_name_to_handle_at
+#    define __NR_name_to_handle_at 370
+#  endif
+#elif defined __powerpc__
+#  ifndef __NR_name_to_handle_at
+#    define __NR_name_to_handle_at 345
+#  endif
+#else
+#  ifndef __NR_name_to_handle_at
+#    error __NR_name_to_handle_at is not defined
+#  endif
+#endif
+
+#if !HAVE_DECL_NAME_TO_HANDLE_AT
+struct file_handle {
+        unsigned int handle_bytes;
+        int handle_type;
+        unsigned char f_handle[0];
+};
+
+static inline int name_to_handle_at(int fd, const char *name, struct file_handle *handle, int *mnt_id, int flags) {
+        return syscall(__NR_name_to_handle_at, fd, name, handle, mnt_id, flags);
+}
+#endif
+
+#ifndef HAVE_SECURE_GETENV
+#  ifdef HAVE___SECURE_GETENV
+#    define secure_getenv __secure_getenv
+#  else
+#    error neither secure_getenv nor __secure_getenv are available
+#  endif
+#endif
+
+#ifndef CIFS_MAGIC_NUMBER
+#define CIFS_MAGIC_NUMBER 0xFF534D42
+#endif
+
+#ifndef TFD_TIMER_CANCEL_ON_SET
+#define TFD_TIMER_CANCEL_ON_SET (1 << 1)
+#endif