wireguard-go-bridge: do not use getdirentries64 on macos

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>

1 files changed, 143 insertions, 0 deletions

diff --git a/wireguard-go-bridge/sys-unix-remove-getdirentries.diff b/wireguard-go-bridge/sys-unix-remove-getdirentries.diff
new file mode 100644
index 0000000..2df5a94
--- /dev/null
+++ b/wireguard-go-bridge/sys-unix-remove-getdirentries.diff
@@ -0,0 +1,143 @@
+From 3efe4df9b66d4af86363e37768ea469abb8f7bdc Mon Sep 17 00:00:00 2001
+From: "Jason A. Donenfeld" <Jason@zx2c4.com>
+Date: Tue, 19 Mar 2019 14:01:21 -0600
+Subject: [PATCH] unix: do not link against ___getdirentries64
+
+---
+ unix/syscall_darwin_386.go    |  5 ++++-
+ unix/syscall_darwin_amd64.go  |  5 ++++-
+ unix/zsyscall_darwin_386.go   | 22 ----------------------
+ unix/zsyscall_darwin_386.s    |  2 --
+ unix/zsyscall_darwin_amd64.go | 22 ----------------------
+ unix/zsyscall_darwin_amd64.s  |  2 --
+ 6 files changed, 8 insertions(+), 50 deletions(-)
+
+diff --git a/unix/syscall_darwin_386.go b/unix/syscall_darwin_386.go
+index 489726f..900dd7c 100644
+--- a/unix/syscall_darwin_386.go
++++ b/unix/syscall_darwin_386.go
+@@ -56,8 +56,11 @@ const SYS___SYSCTL = SYS_SYSCTL
+ //sys	Fstat(fd int, stat *Stat_t) (err error) = SYS_FSTAT64
+ //sys	Fstatat(fd int, path string, stat *Stat_t, flags int) (err error) = SYS_FSTATAT64
+ //sys	Fstatfs(fd int, stat *Statfs_t) (err error) = SYS_FSTATFS64
+-//sys	Getdirentries(fd int, buf []byte, basep *uintptr) (n int, err error) = SYS_GETDIRENTRIES64
+ //sys	getfsstat(buf unsafe.Pointer, size uintptr, flags int) (n int, err error) = SYS_GETFSSTAT64
+ //sys	Lstat(path string, stat *Stat_t) (err error) = SYS_LSTAT64
+ //sys	Stat(path string, stat *Stat_t) (err error) = SYS_STAT64
+ //sys	Statfs(path string, stat *Statfs_t) (err error) = SYS_STATFS64
++
++func Getdirentries(fd int, buf []byte, basep *uintptr) (n int, err error) {
++	return 0, ENOSYS
++}
+diff --git a/unix/syscall_darwin_amd64.go b/unix/syscall_darwin_amd64.go
+index 914b89b..95e245f 100644
+--- a/unix/syscall_darwin_amd64.go
++++ b/unix/syscall_darwin_amd64.go
+@@ -56,8 +56,11 @@ const SYS___SYSCTL = SYS_SYSCTL
+ //sys	Fstat(fd int, stat *Stat_t) (err error) = SYS_FSTAT64
+ //sys	Fstatat(fd int, path string, stat *Stat_t, flags int) (err error) = SYS_FSTATAT64
+ //sys	Fstatfs(fd int, stat *Statfs_t) (err error) = SYS_FSTATFS64
+-//sys	Getdirentries(fd int, buf []byte, basep *uintptr) (n int, err error) = SYS_GETDIRENTRIES64
+ //sys	getfsstat(buf unsafe.Pointer, size uintptr, flags int) (n int, err error) = SYS_GETFSSTAT64
+ //sys	Lstat(path string, stat *Stat_t) (err error) = SYS_LSTAT64
+ //sys	Stat(path string, stat *Stat_t) (err error) = SYS_STAT64
+ //sys	Statfs(path string, stat *Statfs_t) (err error) = SYS_STATFS64
++
++func Getdirentries(fd int, buf []byte, basep *uintptr) (n int, err error) {
++	return 0, ENOSYS
++}
+diff --git a/unix/zsyscall_darwin_386.go b/unix/zsyscall_darwin_386.go
+index 23346dc..db4f1ea 100644
+--- a/unix/zsyscall_darwin_386.go
++++ b/unix/zsyscall_darwin_386.go
+@@ -2408,28 +2408,6 @@ func libc_fstatfs64_trampoline()
+ 
+ // THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+ 
+-func Getdirentries(fd int, buf []byte, basep *uintptr) (n int, err error) {
+-	var _p0 unsafe.Pointer
+-	if len(buf) > 0 {
+-		_p0 = unsafe.Pointer(&buf[0])
+-	} else {
+-		_p0 = unsafe.Pointer(&_zero)
+-	}
+-	r0, _, e1 := syscall_syscall6(funcPC(libc___getdirentries64_trampoline), uintptr(fd), uintptr(_p0), uintptr(len(buf)), uintptr(unsafe.Pointer(basep)), 0, 0)
+-	n = int(r0)
+-	if e1 != 0 {
+-		err = errnoErr(e1)
+-	}
+-	return
+-}
+-
+-func libc___getdirentries64_trampoline()
+-
+-//go:linkname libc___getdirentries64 libc___getdirentries64
+-//go:cgo_import_dynamic libc___getdirentries64 __getdirentries64 "/usr/lib/libSystem.B.dylib"
+-
+-// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+-
+ func getfsstat(buf unsafe.Pointer, size uintptr, flags int) (n int, err error) {
+ 	r0, _, e1 := syscall_syscall(funcPC(libc_getfsstat64_trampoline), uintptr(buf), uintptr(size), uintptr(flags))
+ 	n = int(r0)
+diff --git a/unix/zsyscall_darwin_386.s b/unix/zsyscall_darwin_386.s
+index 37b85b4..6165f70 100644
+--- a/unix/zsyscall_darwin_386.s
++++ b/unix/zsyscall_darwin_386.s
+@@ -272,8 +272,6 @@ TEXT ·libc_fstatat64_trampoline(SB),NOSPLIT,$0-0
+ 	JMP	libc_fstatat64(SB)
+ TEXT ·libc_fstatfs64_trampoline(SB),NOSPLIT,$0-0
+ 	JMP	libc_fstatfs64(SB)
+-TEXT ·libc___getdirentries64_trampoline(SB),NOSPLIT,$0-0
+-	JMP	libc___getdirentries64(SB)
+ TEXT ·libc_getfsstat64_trampoline(SB),NOSPLIT,$0-0
+ 	JMP	libc_getfsstat64(SB)
+ TEXT ·libc_lstat64_trampoline(SB),NOSPLIT,$0-0
+diff --git a/unix/zsyscall_darwin_amd64.go b/unix/zsyscall_darwin_amd64.go
+index c142e33..126f993 100644
+--- a/unix/zsyscall_darwin_amd64.go
++++ b/unix/zsyscall_darwin_amd64.go
+@@ -2423,28 +2423,6 @@ func libc_fstatfs64_trampoline()
+ 
+ // THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+ 
+-func Getdirentries(fd int, buf []byte, basep *uintptr) (n int, err error) {
+-	var _p0 unsafe.Pointer
+-	if len(buf) > 0 {
+-		_p0 = unsafe.Pointer(&buf[0])
+-	} else {
+-		_p0 = unsafe.Pointer(&_zero)
+-	}
+-	r0, _, e1 := syscall_syscall6(funcPC(libc___getdirentries64_trampoline), uintptr(fd), uintptr(_p0), uintptr(len(buf)), uintptr(unsafe.Pointer(basep)), 0, 0)
+-	n = int(r0)
+-	if e1 != 0 {
+-		err = errnoErr(e1)
+-	}
+-	return
+-}
+-
+-func libc___getdirentries64_trampoline()
+-
+-//go:linkname libc___getdirentries64 libc___getdirentries64
+-//go:cgo_import_dynamic libc___getdirentries64 __getdirentries64 "/usr/lib/libSystem.B.dylib"
+-
+-// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+-
+ func getfsstat(buf unsafe.Pointer, size uintptr, flags int) (n int, err error) {
+ 	r0, _, e1 := syscall_syscall(funcPC(libc_getfsstat64_trampoline), uintptr(buf), uintptr(size), uintptr(flags))
+ 	n = int(r0)
+diff --git a/unix/zsyscall_darwin_amd64.s b/unix/zsyscall_darwin_amd64.s
+index 1a39151..a19c4f5 100644
+--- a/unix/zsyscall_darwin_amd64.s
++++ b/unix/zsyscall_darwin_amd64.s
+@@ -274,8 +274,6 @@ TEXT ·libc_fstatat64_trampoline(SB),NOSPLIT,$0-0
+ 	JMP	libc_fstatat64(SB)
+ TEXT ·libc_fstatfs64_trampoline(SB),NOSPLIT,$0-0
+ 	JMP	libc_fstatfs64(SB)
+-TEXT ·libc___getdirentries64_trampoline(SB),NOSPLIT,$0-0
+-	JMP	libc___getdirentries64(SB)
+ TEXT ·libc_getfsstat64_trampoline(SB),NOSPLIT,$0-0
+ 	JMP	libc_getfsstat64(SB)
+ TEXT ·libc_lstat64_trampoline(SB),NOSPLIT,$0-0
+-- 
+2.21.0
+