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authorJakob Unterwurzacher2018-11-04 22:01:18 +0100
committerJakob Unterwurzacher2019-01-01 16:24:25 +0100
commit4fae240153a5300b7108bf5c2de2b6581c8ee7fd (patch)
tree383ae37643dbec97ae786358ad22488f7eb351d0 /internal/syscallcompat/sys_common.go
parent21f1f858b9bebb20fdb9bb3f99189279bb6c6976 (diff)
fusefrontend: make Readlink() symlink-safe
Now symlink-safe through Readlinkat().
Diffstat (limited to 'internal/syscallcompat/sys_common.go')
-rw-r--r--internal/syscallcompat/sys_common.go6
1 files changed, 2 insertions, 4 deletions
diff --git a/internal/syscallcompat/sys_common.go b/internal/syscallcompat/sys_common.go
index c1fd00a..33ed807 100644
--- a/internal/syscallcompat/sys_common.go
+++ b/internal/syscallcompat/sys_common.go
@@ -10,10 +10,8 @@ import (
// It is not defined on Darwin, so we use the Linux value.
const PATH_MAX = 4096
-// 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
-// demand.
-// Buffer allocation is handled internally, unlike the bare unix.Readlinkat.
+// Readlinkat is a convenience wrapper around unix.Readlinkat() that takes
+// care of buffer sizing. Implemented like os.Readlink().
func Readlinkat(dirfd int, path string) (string, error) {
// Allocate the buffer exponentially like os.Readlink does.
for bufsz := 128; ; bufsz *= 2 {