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drwxr-xr-x
asm9_unix1_amd64.s
1.02
KB
-rw-r--r--
asm9_unix2_amd64.s
1.2
KB
-rw-r--r--
asm_aix_ppc64.s
540
B
-rw-r--r--
asm_darwin_386.s
2.5
KB
-rw-r--r--
asm_darwin_amd64.s
2.82
KB
-rw-r--r--
asm_darwin_arm.s
2.81
KB
-rw-r--r--
asm_darwin_arm64.s
2.71
KB
-rw-r--r--
asm_freebsd_arm.s
2.96
KB
-rw-r--r--
asm_freebsd_arm64.s
2.68
KB
-rw-r--r--
asm_linux_386.s
4.67
KB
-rw-r--r--
asm_linux_amd64.s
3.21
KB
-rw-r--r--
asm_linux_arm.s
3.63
KB
-rw-r--r--
asm_linux_arm64.s
2.73
KB
-rw-r--r--
asm_linux_mips64x.s
2.28
KB
-rw-r--r--
asm_linux_mipsx.s
3.28
KB
-rw-r--r--
asm_linux_ppc64x.s
2.66
KB
-rw-r--r--
asm_linux_riscv64.s
2.46
KB
-rw-r--r--
asm_linux_s390x.s
4.19
KB
-rw-r--r--
asm_netbsd_arm.s
2.85
KB
-rw-r--r--
asm_netbsd_arm64.s
2.77
KB
-rw-r--r--
asm_openbsd_arm.s
3.22
KB
-rw-r--r--
asm_openbsd_arm64.s
2.49
KB
-rw-r--r--
asm_plan9_386.s
3.14
KB
-rw-r--r--
asm_plan9_amd64.s
3.06
KB
-rw-r--r--
asm_plan9_arm.s
3.25
KB
-rw-r--r--
asm_solaris_amd64.s
1.79
KB
-rw-r--r--
asm_unix_386.s
2.74
KB
-rw-r--r--
asm_unix_amd64.s
2.08
KB
-rw-r--r--
asm_windows.s
384
B
-rw-r--r--
bpf_bsd.go
4.61
KB
-rw-r--r--
bpf_darwin.go
3.97
KB
-rw-r--r--
const_plan9.go
1.2
KB
-rw-r--r--
creds_test.go
3.26
KB
-rw-r--r--
dir_plan9.go
5.62
KB
-rw-r--r--
dirent.go
3
KB
-rw-r--r--
dirent_test.go
3.28
KB
-rw-r--r--
dll_windows.go
9.72
KB
-rw-r--r--
endian_big.go
239
B
-rw-r--r--
endian_little.go
273
B
-rw-r--r--
env_plan9.go
2.15
KB
-rw-r--r--
env_unix.go
2.77
KB
-rw-r--r--
env_windows.go
1.75
KB
-rw-r--r--
errors_plan9.go
1.61
KB
-rw-r--r--
exec_aix_test.go
816
B
-rw-r--r--
exec_bsd.go
6.36
KB
-rw-r--r--
exec_darwin.go
6.76
KB
-rw-r--r--
exec_libc.go
6.96
KB
-rw-r--r--
exec_linux.go
18.34
KB
-rw-r--r--
exec_linux_test.go
18.81
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-rw-r--r--
exec_plan9.go
13.19
KB
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exec_solaris_test.go
808
B
-rw-r--r--
exec_unix.go
8.13
KB
-rw-r--r--
exec_unix_test.go
3.89
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-rw-r--r--
exec_windows.go
7.64
KB
-rw-r--r--
export_freebsd_test.go
304
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-rw-r--r--
export_linux_test.go
252
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-rw-r--r--
export_test.go
193
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-rw-r--r--
export_unix_test.go
341
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-rw-r--r--
flock.go
691
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-rw-r--r--
flock_aix.go
564
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-rw-r--r--
flock_darwin.go
405
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-rw-r--r--
flock_linux_32bit.go
481
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-rw-r--r--
forkpipe.go
501
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-rw-r--r--
forkpipe2.go
276
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-rw-r--r--
fs_js.go
10.46
KB
-rw-r--r--
getdirentries_test.go
2.18
KB
-rw-r--r--
lsf_linux.go
2.12
KB
-rw-r--r--
mkall.sh
12.49
KB
-rwxr-xr-x
mkasm_darwin.go
1.66
KB
-rw-r--r--
mkerrors.sh
10.65
KB
-rwxr-xr-x
mkpost.go
1.99
KB
-rw-r--r--
mksyscall.pl
9.52
KB
-rwxr-xr-x
mksyscall_libc.pl
7.8
KB
-rwxr-xr-x
mksyscall_windows.go
707
B
-rw-r--r--
mksysctl_openbsd.pl
5.04
KB
-rwxr-xr-x
mksysnum_darwin.pl
578
B
-rwxr-xr-x
mksysnum_dragonfly.pl
866
B
-rwxr-xr-x
mksysnum_freebsd.pl
1.35
KB
-rwxr-xr-x
mksysnum_linux.pl
1.26
KB
-rwxr-xr-x
mksysnum_netbsd.pl
1.01
KB
-rwxr-xr-x
mksysnum_openbsd.pl
871
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-rwxr-xr-x
mksysnum_plan9.sh
459
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-rwxr-xr-x
mmap_unix_test.go
544
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-rw-r--r--
msan.go
409
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-rw-r--r--
msan0.go
341
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-rw-r--r--
net.go
1.19
KB
-rw-r--r--
net_js.go
2.11
KB
-rw-r--r--
netlink_linux.go
4.67
KB
-rw-r--r--
pwd_plan9.go
1.55
KB
-rw-r--r--
route_bsd.go
9.09
KB
-rw-r--r--
route_darwin.go
2.01
KB
-rw-r--r--
route_dragonfly.go
2.61
KB
-rw-r--r--
route_freebsd.go
2.67
KB
-rw-r--r--
route_freebsd_32bit.go
1.29
KB
-rw-r--r--
route_freebsd_64bit.go
724
B
-rw-r--r--
route_netbsd.go
1.43
KB
-rw-r--r--
route_openbsd.go
1.46
KB
-rw-r--r--
security_windows.go
10.12
KB
-rw-r--r--
setuidgid_32_linux.go
306
B
-rw-r--r--
setuidgid_linux.go
302
B
-rw-r--r--
sock_cloexec_linux.go
632
B
-rw-r--r--
sockcmsg_dragonfly.go
547
B
-rw-r--r--
sockcmsg_linux.go
1.12
KB
-rw-r--r--
sockcmsg_unix.go
2.56
KB
-rw-r--r--
sockcmsg_unix_other.go
957
B
-rw-r--r--
str.go
549
B
-rw-r--r--
syscall.go
3.72
KB
-rw-r--r--
syscall_aix.go
17.83
KB
-rw-r--r--
syscall_aix_ppc64.go
405
B
-rw-r--r--
syscall_bsd.go
14.07
KB
-rw-r--r--
syscall_bsd_test.go
1.16
KB
-rw-r--r--
syscall_darwin.go
14.26
KB
-rw-r--r--
syscall_darwin_386.go
2
KB
-rw-r--r--
syscall_darwin_amd64.go
1.92
KB
-rw-r--r--
syscall_darwin_arm.go
2.03
KB
-rw-r--r--
syscall_darwin_arm64.go
1.98
KB
-rw-r--r--
syscall_dragonfly.go
7.98
KB
-rw-r--r--
syscall_dragonfly_amd64.go
1.12
KB
-rw-r--r--
syscall_freebsd.go
15.82
KB
-rw-r--r--
syscall_freebsd_386.go
1.17
KB
-rw-r--r--
syscall_freebsd_amd64.go
1.12
KB
-rw-r--r--
syscall_freebsd_arm.go
1.16
KB
-rw-r--r--
syscall_freebsd_arm64.go
1.12
KB
-rw-r--r--
syscall_freebsd_test.go
1.35
KB
-rw-r--r--
syscall_getwd_bsd.go
453
B
-rw-r--r--
syscall_js.go
6.59
KB
-rw-r--r--
syscall_linux.go
26.05
KB
-rw-r--r--
syscall_linux_386.go
10.91
KB
-rw-r--r--
syscall_linux_amd64.go
5.39
KB
-rw-r--r--
syscall_linux_arm.go
7.47
KB
-rw-r--r--
syscall_linux_arm64.go
6.24
KB
-rw-r--r--
syscall_linux_mips64x.go
6.58
KB
-rw-r--r--
syscall_linux_mipsx.go
7.03
KB
-rw-r--r--
syscall_linux_ppc64x.go
5.21
KB
-rw-r--r--
syscall_linux_riscv64.go
6.4
KB
-rw-r--r--
syscall_linux_s390x.go
8.64
KB
-rw-r--r--
syscall_linux_test.go
10.61
KB
-rw-r--r--
syscall_netbsd.go
7.59
KB
-rw-r--r--
syscall_netbsd_386.go
716
B
-rw-r--r--
syscall_netbsd_amd64.go
709
B
-rw-r--r--
syscall_netbsd_arm.go
716
B
-rw-r--r--
syscall_netbsd_arm64.go
709
B
-rw-r--r--
syscall_openbsd.go
7.06
KB
-rw-r--r--
syscall_openbsd_386.go
715
B
-rw-r--r--
syscall_openbsd_amd64.go
701
B
-rw-r--r--
syscall_openbsd_arm.go
715
B
-rw-r--r--
syscall_openbsd_arm64.go
906
B
-rw-r--r--
syscall_plan9.go
8.94
KB
-rw-r--r--
syscall_plan9_test.go
1.15
KB
-rw-r--r--
syscall_ptrace_test.go
752
B
-rw-r--r--
syscall_solaris.go
15.07
KB
-rw-r--r--
syscall_solaris_amd64.go
487
B
-rw-r--r--
syscall_test.go
1.7
KB
-rw-r--r--
syscall_unix.go
8.3
KB
-rw-r--r--
syscall_unix_test.go
10.61
KB
-rw-r--r--
syscall_windows.go
42.54
KB
-rw-r--r--
syscall_windows_386.go
176
B
-rw-r--r--
syscall_windows_amd64.go
176
B
-rw-r--r--
syscall_windows_test.go
1.8
KB
-rw-r--r--
tables_js.go
19.17
KB
-rw-r--r--
time_fake.go
676
B
-rw-r--r--
time_nofake.go
350
B
-rw-r--r--
timestruct.go
1.13
KB
-rw-r--r--
types_aix.go
3.35
KB
-rw-r--r--
types_darwin.go
4.98
KB
-rw-r--r--
types_dragonfly.go
5.04
KB
-rw-r--r--
types_freebsd.go
6.96
KB
-rw-r--r--
types_linux.go
10.68
KB
-rw-r--r--
types_netbsd.go
4.77
KB
-rw-r--r--
types_openbsd.go
5.04
KB
-rw-r--r--
types_solaris.go
4.88
KB
-rw-r--r--
types_windows.go
26.96
KB
-rw-r--r--
types_windows_386.go
477
B
-rw-r--r--
types_windows_amd64.go
477
B
-rw-r--r--
types_windows_arm.go
477
B
-rw-r--r--
zerrors_aix_ppc64.go
47.16
KB
-rw-r--r--
zerrors_darwin_386.go
55.27
KB
-rw-r--r--
zerrors_darwin_amd64.go
55.27
KB
-rw-r--r--
zerrors_darwin_arm.go
46.08
KB
-rw-r--r--
zerrors_darwin_arm64.go
55.78
KB
-rw-r--r--
zerrors_dragonfly_amd64.go
59.49
KB
-rw-r--r--
zerrors_freebsd_386.go
67.35
KB
-rw-r--r--
zerrors_freebsd_amd64.go
67.4
KB
-rw-r--r--
zerrors_freebsd_arm.go
67.34
KB
-rw-r--r--
zerrors_freebsd_arm64.go
67.41
KB
-rw-r--r--
zerrors_linux_386.go
58.31
KB
-rw-r--r--
zerrors_linux_amd64.go
58.35
KB
-rw-r--r--
zerrors_linux_arm.go
58.83
KB
-rw-r--r--
zerrors_linux_arm64.go
69.52
KB
-rw-r--r--
zerrors_linux_mips.go
70.14
KB
-rw-r--r--
zerrors_linux_mips64.go
69.46
KB
-rw-r--r--
zerrors_linux_mips64le.go
69.46
KB
-rw-r--r--
zerrors_linux_mipsle.go
70.14
KB
-rw-r--r--
zerrors_linux_ppc64.go
71.84
KB
-rw-r--r--
zerrors_linux_ppc64le.go
72.8
KB
-rw-r--r--
zerrors_linux_riscv64.go
71.76
KB
-rw-r--r--
zerrors_linux_s390x.go
74.28
KB
-rw-r--r--
zerrors_netbsd_386.go
67.43
KB
-rw-r--r--
zerrors_netbsd_amd64.go
67.02
KB
-rw-r--r--
zerrors_netbsd_arm.go
66.45
KB
-rw-r--r--
zerrors_netbsd_arm64.go
67.02
KB
-rw-r--r--
zerrors_openbsd_386.go
62.47
KB
-rw-r--r--
zerrors_openbsd_amd64.go
62.43
KB
-rw-r--r--
zerrors_openbsd_arm.go
62.46
KB
-rw-r--r--
zerrors_openbsd_arm64.go
66.36
KB
-rw-r--r--
zerrors_solaris_amd64.go
50.71
KB
-rw-r--r--
zerrors_windows.go
9.97
KB
-rw-r--r--
zerrors_windows_386.go
176
B
-rw-r--r--
zerrors_windows_amd64.go
176
B
-rw-r--r--
zsyscall_aix_ppc64.go
40.02
KB
-rw-r--r--
zsyscall_darwin_386.go
53.97
KB
-rw-r--r--
zsyscall_darwin_386.s
8.65
KB
-rw-r--r--
zsyscall_darwin_amd64.go
53.83
KB
-rw-r--r--
zsyscall_darwin_amd64.s
8.65
KB
-rw-r--r--
zsyscall_darwin_arm.go
53.44
KB
-rw-r--r--
zsyscall_darwin_arm.s
8.56
KB
-rw-r--r--
zsyscall_darwin_arm64.go
53.3
KB
-rw-r--r--
zsyscall_darwin_arm64.s
8.56
KB
-rw-r--r--
zsyscall_dragonfly_amd64.go
30.9
KB
-rw-r--r--
zsyscall_freebsd_386.go
33.55
KB
-rw-r--r--
zsyscall_freebsd_amd64.go
33.41
KB
-rw-r--r--
zsyscall_freebsd_arm.go
33.58
KB
-rw-r--r--
zsyscall_freebsd_arm64.go
33.41
KB
-rw-r--r--
zsyscall_linux_386.go
35.54
KB
-rw-r--r--
zsyscall_linux_amd64.go
40.66
KB
-rw-r--r--
zsyscall_linux_arm.go
39.77
KB
-rw-r--r--
zsyscall_linux_arm64.go
38.92
KB
-rw-r--r--
zsyscall_linux_mips.go
41.52
KB
-rw-r--r--
zsyscall_linux_mips64.go
41.3
KB
-rw-r--r--
zsyscall_linux_mips64le.go
41.3
KB
-rw-r--r--
zsyscall_linux_mipsle.go
41.52
KB
-rw-r--r--
zsyscall_linux_ppc64.go
41.94
KB
-rw-r--r--
zsyscall_linux_ppc64le.go
41.94
KB
-rw-r--r--
zsyscall_linux_riscv64.go
38.95
KB
-rw-r--r--
zsyscall_linux_s390x.go
35.94
KB
-rw-r--r--
zsyscall_netbsd_386.go
29.62
KB
-rw-r--r--
zsyscall_netbsd_amd64.go
29.48
KB
-rw-r--r--
zsyscall_netbsd_arm.go
29.63
KB
-rw-r--r--
zsyscall_netbsd_arm64.go
29.48
KB
-rw-r--r--
zsyscall_openbsd_386.go
30.46
KB
-rw-r--r--
zsyscall_openbsd_amd64.go
30.32
KB
-rw-r--r--
zsyscall_openbsd_arm.go
30.47
KB
-rw-r--r--
zsyscall_openbsd_arm64.go
30.32
KB
-rw-r--r--
zsyscall_plan9_386.go
6.17
KB
-rw-r--r--
zsyscall_plan9_amd64.go
6.17
KB
-rw-r--r--
zsyscall_plan9_arm.go
6.17
KB
-rw-r--r--
zsyscall_solaris_amd64.go
35.79
KB
-rw-r--r--
zsyscall_windows.go
60.53
KB
-rw-r--r--
zsysctl_openbsd.go
11.71
KB
-rw-r--r--
zsysnum_darwin_386.go
14.55
KB
-rw-r--r--
zsysnum_darwin_amd64.go
14.55
KB
-rw-r--r--
zsysnum_darwin_arm.go
12.28
KB
-rw-r--r--
zsysnum_darwin_arm64.go
14.38
KB
-rw-r--r--
zsysnum_dragonfly_amd64.go
22.72
KB
-rw-r--r--
zsysnum_freebsd_386.go
25.65
KB
-rw-r--r--
zsysnum_freebsd_amd64.go
25.65
KB
-rw-r--r--
zsysnum_freebsd_arm.go
25.65
KB
-rw-r--r--
zsysnum_freebsd_arm64.go
36.09
KB
-rw-r--r--
zsysnum_linux_386.go
11.26
KB
-rw-r--r--
zsysnum_linux_amd64.go
10.1
KB
-rw-r--r--
zsysnum_linux_arm.go
11.55
KB
-rw-r--r--
zsysnum_linux_arm64.go
8.95
KB
-rw-r--r--
zsysnum_linux_mips.go
12.1
KB
-rw-r--r--
zsysnum_linux_mips64.go
10.93
KB
-rw-r--r--
zsysnum_linux_mips64le.go
10.93
KB
-rw-r--r--
zsysnum_linux_mipsle.go
12.1
KB
-rw-r--r--
zsysnum_linux_ppc64.go
11.46
KB
-rw-r--r--
zsysnum_linux_ppc64le.go
11.49
KB
-rw-r--r--
zsysnum_linux_riscv64.go
8.88
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-rw-r--r--
zsysnum_linux_s390x.go
10.64
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-rw-r--r--
zsysnum_netbsd_386.go
25.54
KB
-rw-r--r--
zsysnum_netbsd_amd64.go
25.55
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-rw-r--r--
zsysnum_netbsd_arm.go
25.54
KB
-rw-r--r--
zsysnum_netbsd_arm64.go
25.55
KB
-rw-r--r--
zsysnum_openbsd_386.go
14.15
KB
-rw-r--r--
zsysnum_openbsd_amd64.go
14.15
KB
-rw-r--r--
zsysnum_openbsd_arm.go
14.46
KB
-rw-r--r--
zsysnum_openbsd_arm64.go
14.72
KB
-rw-r--r--
zsysnum_plan9.go
1.03
KB
-rw-r--r--
zsysnum_solaris_amd64.go
289
B
-rw-r--r--
zsysnum_windows_386.go
40
B
-rw-r--r--
zsysnum_windows_amd64.go
40
B
-rw-r--r--
ztypes_aix_ppc64.go
4.17
KB
-rw-r--r--
ztypes_darwin_386.go
6.7
KB
-rw-r--r--
ztypes_darwin_amd64.go
6.92
KB
-rw-r--r--
ztypes_darwin_arm.go
6.77
KB
-rw-r--r--
ztypes_darwin_arm64.go
6.92
KB
-rw-r--r--
ztypes_dragonfly_amd64.go
6.7
KB
-rw-r--r--
ztypes_freebsd_386.go
9
KB
-rw-r--r--
ztypes_freebsd_amd64.go
9
KB
-rw-r--r--
ztypes_freebsd_arm.go
9.01
KB
-rw-r--r--
ztypes_freebsd_arm64.go
9
KB
-rw-r--r--
ztypes_linux_386.go
11.55
KB
-rw-r--r--
ztypes_linux_amd64.go
11.92
KB
-rw-r--r--
ztypes_linux_arm.go
11.44
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Code Editor : syscall_linux_test.go
// Copyright 2015 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. package syscall_test import ( "bufio" "fmt" "io" "io/ioutil" "os" "os/exec" "os/signal" "path/filepath" "runtime" "strconv" "strings" "syscall" "testing" "time" "unsafe" ) // chtmpdir changes the working directory to a new temporary directory and // provides a cleanup function. Used when PWD is read-only. func chtmpdir(t *testing.T) func() { oldwd, err := os.Getwd() if err != nil { t.Fatalf("chtmpdir: %v", err) } d, err := ioutil.TempDir("", "test") if err != nil { t.Fatalf("chtmpdir: %v", err) } if err := os.Chdir(d); err != nil { t.Fatalf("chtmpdir: %v", err) } return func() { if err := os.Chdir(oldwd); err != nil { t.Fatalf("chtmpdir: %v", err) } os.RemoveAll(d) } } func touch(t *testing.T, name string) { f, err := os.Create(name) if err != nil { t.Fatal(err) } if err := f.Close(); err != nil { t.Fatal(err) } } const ( _AT_SYMLINK_NOFOLLOW = 0x100 _AT_FDCWD = -0x64 _AT_EACCESS = 0x200 _F_OK = 0 _R_OK = 4 ) func TestFaccessat(t *testing.T) { defer chtmpdir(t)() touch(t, "file1") err := syscall.Faccessat(_AT_FDCWD, "file1", _R_OK, 0) if err != nil { t.Errorf("Faccessat: unexpected error: %v", err) } err = syscall.Faccessat(_AT_FDCWD, "file1", _R_OK, 2) if err != syscall.EINVAL { t.Errorf("Faccessat: unexpected error: %v, want EINVAL", err) } err = syscall.Faccessat(_AT_FDCWD, "file1", _R_OK, _AT_EACCESS) if err != nil { t.Errorf("Faccessat: unexpected error: %v", err) } err = os.Symlink("file1", "symlink1") if err != nil { t.Fatal(err) } err = syscall.Faccessat(_AT_FDCWD, "symlink1", _R_OK, _AT_SYMLINK_NOFOLLOW) if err != nil { t.Errorf("Faccessat SYMLINK_NOFOLLOW: unexpected error %v", err) } // We can't really test _AT_SYMLINK_NOFOLLOW, because there // doesn't seem to be any way to change the mode of a symlink. // We don't test _AT_EACCESS because such tests are only // meaningful if run as root. err = syscall.Fchmodat(_AT_FDCWD, "file1", 0, 0) if err != nil { t.Errorf("Fchmodat: unexpected error %v", err) } err = syscall.Faccessat(_AT_FDCWD, "file1", _F_OK, _AT_SYMLINK_NOFOLLOW) if err != nil { t.Errorf("Faccessat: unexpected error: %v", err) } err = syscall.Faccessat(_AT_FDCWD, "file1", _R_OK, _AT_SYMLINK_NOFOLLOW) if err != syscall.EACCES { if syscall.Getuid() != 0 { t.Errorf("Faccessat: unexpected error: %v, want EACCES", err) } } } func TestFchmodat(t *testing.T) { defer chtmpdir(t)() touch(t, "file1") os.Symlink("file1", "symlink1") err := syscall.Fchmodat(_AT_FDCWD, "symlink1", 0444, 0) if err != nil { t.Fatalf("Fchmodat: unexpected error: %v", err) } fi, err := os.Stat("file1") if err != nil { t.Fatal(err) } if fi.Mode() != 0444 { t.Errorf("Fchmodat: failed to change mode: expected %v, got %v", 0444, fi.Mode()) } err = syscall.Fchmodat(_AT_FDCWD, "symlink1", 0444, _AT_SYMLINK_NOFOLLOW) if err != syscall.EOPNOTSUPP { t.Fatalf("Fchmodat: unexpected error: %v, expected EOPNOTSUPP", err) } } func TestMain(m *testing.M) { if os.Getenv("GO_DEATHSIG_PARENT") == "1" { deathSignalParent() } else if os.Getenv("GO_DEATHSIG_CHILD") == "1" { deathSignalChild() } else if os.Getenv("GO_SYSCALL_NOERROR") == "1" { syscallNoError() } os.Exit(m.Run()) } func TestLinuxDeathSignal(t *testing.T) { if os.Getuid() != 0 { t.Skip("skipping root only test") } // Copy the test binary to a location that a non-root user can read/execute // after we drop privileges tempDir, err := ioutil.TempDir("", "TestDeathSignal") if err != nil { t.Fatalf("cannot create temporary directory: %v", err) } defer os.RemoveAll(tempDir) os.Chmod(tempDir, 0755) tmpBinary := filepath.Join(tempDir, filepath.Base(os.Args[0])) src, err := os.Open(os.Args[0]) if err != nil { t.Fatalf("cannot open binary %q, %v", os.Args[0], err) } defer src.Close() dst, err := os.OpenFile(tmpBinary, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0755) if err != nil { t.Fatalf("cannot create temporary binary %q, %v", tmpBinary, err) } if _, err := io.Copy(dst, src); err != nil { t.Fatalf("failed to copy test binary to %q, %v", tmpBinary, err) } err = dst.Close() if err != nil { t.Fatalf("failed to close test binary %q, %v", tmpBinary, err) } cmd := exec.Command(tmpBinary) cmd.Env = []string{"GO_DEATHSIG_PARENT=1"} chldStdin, err := cmd.StdinPipe() if err != nil { t.Fatalf("failed to create new stdin pipe: %v", err) } chldStdout, err := cmd.StdoutPipe() if err != nil { t.Fatalf("failed to create new stdout pipe: %v", err) } cmd.Stderr = os.Stderr err = cmd.Start() defer cmd.Wait() if err != nil { t.Fatalf("failed to start first child process: %v", err) } chldPipe := bufio.NewReader(chldStdout) if got, err := chldPipe.ReadString('\n'); got == "start\n" { syscall.Kill(cmd.Process.Pid, syscall.SIGTERM) go func() { time.Sleep(5 * time.Second) chldStdin.Close() }() want := "ok\n" if got, err = chldPipe.ReadString('\n'); got != want { t.Fatalf("expected %q, received %q, %v", want, got, err) } } else { t.Fatalf("did not receive start from child, received %q, %v", got, err) } } func deathSignalParent() { cmd := exec.Command(os.Args[0]) cmd.Env = []string{"GO_DEATHSIG_CHILD=1"} cmd.Stdin = os.Stdin cmd.Stdout = os.Stdout attrs := syscall.SysProcAttr{ Pdeathsig: syscall.SIGUSR1, // UID/GID 99 is the user/group "nobody" on RHEL/Fedora and is // unused on Ubuntu Credential: &syscall.Credential{Uid: 99, Gid: 99}, } cmd.SysProcAttr = &attrs err := cmd.Start() if err != nil { fmt.Fprintf(os.Stderr, "death signal parent error: %v\n", err) os.Exit(1) } cmd.Wait() os.Exit(0) } func deathSignalChild() { c := make(chan os.Signal, 1) signal.Notify(c, syscall.SIGUSR1) go func() { <-c fmt.Println("ok") os.Exit(0) }() fmt.Println("start") buf := make([]byte, 32) os.Stdin.Read(buf) // We expected to be signaled before stdin closed fmt.Println("not ok") os.Exit(1) } func TestParseNetlinkMessage(t *testing.T) { for i, b := range [][]byte{ {103, 0, 0, 0, 0, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 2, 11, 0, 1, 0, 0, 0, 0, 5, 8, 0, 3, 0, 8, 0, 6, 0, 0, 0, 0, 1, 63, 0, 10, 0, 69, 16, 0, 59, 39, 82, 64, 0, 64, 6, 21, 89, 127, 0, 0, 1, 127, 0, 0, 1, 230, 228, 31, 144, 32, 186, 155, 211, 185, 151, 209, 179, 128, 24, 1, 86, 53, 119, 0, 0, 1, 1, 8, 10, 0, 17, 234, 12, 0, 17, 189, 126, 107, 106, 108, 107, 106, 13, 10, }, {106, 0, 0, 0, 0, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 2, 11, 0, 1, 0, 0, 0, 0, 3, 8, 0, 3, 0, 8, 0, 6, 0, 0, 0, 0, 1, 66, 0, 10, 0, 69, 0, 0, 62, 230, 255, 64, 0, 64, 6, 85, 184, 127, 0, 0, 1, 127, 0, 0, 1, 237, 206, 31, 144, 73, 197, 128, 65, 250, 60, 192, 97, 128, 24, 1, 86, 253, 21, 0, 0, 1, 1, 8, 10, 0, 51, 106, 89, 0, 51, 102, 198, 108, 104, 106, 108, 107, 104, 108, 107, 104, 10, }, {102, 0, 0, 0, 0, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 2, 11, 0, 1, 0, 0, 0, 0, 1, 8, 0, 3, 0, 8, 0, 6, 0, 0, 0, 0, 1, 62, 0, 10, 0, 69, 0, 0, 58, 231, 2, 64, 0, 64, 6, 85, 185, 127, 0, 0, 1, 127, 0, 0, 1, 237, 206, 31, 144, 73, 197, 128, 86, 250, 60, 192, 97, 128, 24, 1, 86, 104, 64, 0, 0, 1, 1, 8, 10, 0, 52, 198, 200, 0, 51, 135, 232, 101, 115, 97, 103, 103, 10, }, } { m, err := syscall.ParseNetlinkMessage(b) if err != syscall.EINVAL { t.Errorf("#%d: got %v; want EINVAL", i, err) } if m != nil { t.Errorf("#%d: got %v; want nil", i, m) } } } func TestSyscallNoError(t *testing.T) { // On Linux there are currently no syscalls which don't fail and return // a value larger than 0xfffffffffffff001 so we could test RawSyscall // vs. RawSyscallNoError on 64bit architectures. if unsafe.Sizeof(uintptr(0)) != 4 { t.Skip("skipping on non-32bit architecture") } // See https://golang.org/issue/35422 // On MIPS, Linux returns whether the syscall had an error in a separate // register (R7), not using a negative return value as on other // architectures. if runtime.GOARCH == "mips" || runtime.GOARCH == "mipsle" { t.Skipf("skipping on %s", runtime.GOARCH) } if os.Getuid() != 0 { t.Skip("skipping root only test") } if runtime.GOOS == "android" { t.Skip("skipping on rooted android, see issue 27364") } // Copy the test binary to a location that a non-root user can read/execute // after we drop privileges tempDir, err := ioutil.TempDir("", "TestSyscallNoError") if err != nil { t.Fatalf("cannot create temporary directory: %v", err) } defer os.RemoveAll(tempDir) os.Chmod(tempDir, 0755) tmpBinary := filepath.Join(tempDir, filepath.Base(os.Args[0])) src, err := os.Open(os.Args[0]) if err != nil { t.Fatalf("cannot open binary %q, %v", os.Args[0], err) } defer src.Close() dst, err := os.OpenFile(tmpBinary, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0755) if err != nil { t.Fatalf("cannot create temporary binary %q, %v", tmpBinary, err) } if _, err := io.Copy(dst, src); err != nil { t.Fatalf("failed to copy test binary to %q, %v", tmpBinary, err) } err = dst.Close() if err != nil { t.Fatalf("failed to close test binary %q, %v", tmpBinary, err) } uid := uint32(0xfffffffe) err = os.Chown(tmpBinary, int(uid), -1) if err != nil { t.Fatalf("failed to chown test binary %q, %v", tmpBinary, err) } err = os.Chmod(tmpBinary, 0755|os.ModeSetuid) if err != nil { t.Fatalf("failed to set setuid bit on test binary %q, %v", tmpBinary, err) } cmd := exec.Command(tmpBinary) cmd.Env = []string{"GO_SYSCALL_NOERROR=1"} out, err := cmd.CombinedOutput() if err != nil { t.Fatalf("failed to start first child process: %v", err) } got := strings.TrimSpace(string(out)) want := strconv.FormatUint(uint64(uid)+1, 10) + " / " + strconv.FormatUint(uint64(-uid), 10) + " / " + strconv.FormatUint(uint64(uid), 10) if got != want { if filesystemIsNoSUID(tmpBinary) { t.Skip("skipping test when temp dir is mounted nosuid") } // formatted so the values are aligned for easier comparison t.Errorf("expected %s,\ngot %s", want, got) } } // filesystemIsNoSUID reports whether the filesystem for the given // path is mounted nosuid. func filesystemIsNoSUID(path string) bool { var st syscall.Statfs_t if syscall.Statfs(path, &st) != nil { return false } return st.Flags&syscall.MS_NOSUID != 0 } func syscallNoError() { // Test that the return value from SYS_GETEUID32 (which cannot fail) // doesn't get treated as an error (see https://golang.org/issue/22924) euid1, _, e := syscall.RawSyscall(syscall.Sys_GETEUID, 0, 0, 0) euid2, _ := syscall.RawSyscallNoError(syscall.Sys_GETEUID, 0, 0, 0) fmt.Println(uintptr(euid1), "/", int(e), "/", uintptr(euid2)) os.Exit(0) }
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