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authorOpenShift Merge Robot <openshift-merge-robot@users.noreply.github.com>2019-10-04 13:26:38 -0700
committerGitHub <noreply@github.com>2019-10-04 13:26:38 -0700
commit2c2782a2179aee6c76d90e864708e2e5ceb09349 (patch)
treec61aa40e008b7fcb371d899880a4afd1714f50af /vendor/golang.org/x/sys/unix/ioctl.go
parentbd08fc0e9b3a9943008585879877b68789e38c31 (diff)
parentd3f59bedb393521986e645bc48c47938f321b643 (diff)
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Merge pull request #4165 from mtrmac/c-image-4
Update c/image to v4.0.0 + Buildah to 1.11.3
Diffstat (limited to 'vendor/golang.org/x/sys/unix/ioctl.go')
-rw-r--r--vendor/golang.org/x/sys/unix/ioctl.go41
1 files changed, 38 insertions, 3 deletions
diff --git a/vendor/golang.org/x/sys/unix/ioctl.go b/vendor/golang.org/x/sys/unix/ioctl.go
index f121a8d64..3559e5dcb 100644
--- a/vendor/golang.org/x/sys/unix/ioctl.go
+++ b/vendor/golang.org/x/sys/unix/ioctl.go
@@ -6,7 +6,19 @@
package unix
-import "runtime"
+import (
+ "runtime"
+ "unsafe"
+)
+
+// ioctl itself should not be exposed directly, but additional get/set
+// functions for specific types are permissible.
+
+// IoctlSetInt performs an ioctl operation which sets an integer value
+// on fd, using the specified request number.
+func IoctlSetInt(fd int, req uint, value int) error {
+ return ioctl(fd, req, uintptr(value))
+}
// IoctlSetWinsize performs an ioctl on fd with a *Winsize argument.
//
@@ -14,7 +26,7 @@ import "runtime"
func IoctlSetWinsize(fd int, req uint, value *Winsize) error {
// TODO: if we get the chance, remove the req parameter and
// hardcode TIOCSWINSZ.
- err := ioctlSetWinsize(fd, req, value)
+ err := ioctl(fd, req, uintptr(unsafe.Pointer(value)))
runtime.KeepAlive(value)
return err
}
@@ -24,7 +36,30 @@ func IoctlSetWinsize(fd int, req uint, value *Winsize) error {
// The req value will usually be TCSETA or TIOCSETA.
func IoctlSetTermios(fd int, req uint, value *Termios) error {
// TODO: if we get the chance, remove the req parameter.
- err := ioctlSetTermios(fd, req, value)
+ err := ioctl(fd, req, uintptr(unsafe.Pointer(value)))
runtime.KeepAlive(value)
return err
}
+
+// IoctlGetInt performs an ioctl operation which gets an integer value
+// from fd, using the specified request number.
+//
+// A few ioctl requests use the return value as an output parameter;
+// for those, IoctlRetInt should be used instead of this function.
+func IoctlGetInt(fd int, req uint) (int, error) {
+ var value int
+ err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
+ return value, err
+}
+
+func IoctlGetWinsize(fd int, req uint) (*Winsize, error) {
+ var value Winsize
+ err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
+ return &value, err
+}
+
+func IoctlGetTermios(fd int, req uint) (*Termios, error) {
+ var value Termios
+ err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
+ return &value, err
+}