hardcoresushi/libgocryptfs
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darwin does not have PATH_MAX

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Define our own, with the value from Linux.
This commit is contained in:
Jakob Unterwurzacher 2018-06-08 00:47:48 +02:00
parent 5ad26495fc
commit bde7ba57b0
3 changed files with 4 additions and 3 deletions
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2
daemonize.go
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@ -29,7 +29,7 @@ func exitOnUsr1() {
func forkChild() int { func forkChild() int {
name := os.Args[0] name := os.Args[0]
// Use the full path to our executable if we can get if from /proc. // Use the full path to our executable if we can get if from /proc.
buf := make([]byte, syscall.PathMax) buf := make([]byte, syscallcompat.PATH_MAX)
n, err := syscall.Readlink("/proc/self/exe", buf) n, err := syscall.Readlink("/proc/self/exe", buf)
if err == nil { if err == nil {
name = string(buf[:n]) name = string(buf[:n])

3
internal/fusefrontend_reverse/rfs.go
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@ -333,8 +333,7 @@ func (rfs *ReverseFS) Readlink(relPath string, context *fuse.Context) (string, f
cTarget := rfs.nameTransform.B64.EncodeToString(cBinTarget) cTarget := rfs.nameTransform.B64.EncodeToString(cBinTarget)
// The kernel will reject a symlink target above 4096 chars and return // The kernel will reject a symlink target above 4096 chars and return
// and I/O error to the user. Better emit the proper error ourselves. // and I/O error to the user. Better emit the proper error ourselves.
const PATH_MAX = 4096 // not defined on Darwin if len(cTarget) > syscallcompat.PATH_MAX {
if len(cTarget) > PATH_MAX {
return "", fuse.Status(syscall.ENAMETOOLONG) return "", fuse.Status(syscall.ENAMETOOLONG)
} }
return cTarget, fuse.OK return cTarget, fuse.OK

2
internal/syscallcompat/sys_common.go
View File

@ -6,6 +6,8 @@ import (
"golang.org/x/sys/unix" "golang.org/x/sys/unix"
) )
const PATH_MAX = 4096 // not defined on Darwin
// Readlinkat exists both in Linux and in MacOS 10.10+. We may add an // Readlinkat exists both in Linux and in MacOS 10.10+. We may add an
// emulated version for users on older MacOS versions if there is // emulated version for users on older MacOS versions if there is
// demand. // demand.