diff options
Diffstat (limited to 'vendor/github.com/tetratelabs/wazero/internal/sysfs/dirfs_supported.go')
| -rw-r--r-- | vendor/github.com/tetratelabs/wazero/internal/sysfs/dirfs_supported.go | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/vendor/github.com/tetratelabs/wazero/internal/sysfs/dirfs_supported.go b/vendor/github.com/tetratelabs/wazero/internal/sysfs/dirfs_supported.go index ff93415b9..a949bd54d 100644 --- a/vendor/github.com/tetratelabs/wazero/internal/sysfs/dirfs_supported.go +++ b/vendor/github.com/tetratelabs/wazero/internal/sysfs/dirfs_supported.go @@ -5,6 +5,7 @@ package sysfs import ( "io/fs" "os" + "path" experimentalsys "github.com/tetratelabs/wazero/experimental/sys" ) @@ -34,6 +35,11 @@ func (d *dirFS) Chmod(path string, perm fs.FileMode) experimentalsys.Errno { // Symlink implements the same method as documented on sys.FS func (d *dirFS) Symlink(oldName, link string) experimentalsys.Errno { + // Creating a symlink with an absolute path string fails with a "not permitted" error. + // https://github.com/WebAssembly/wasi-filesystem/blob/v0.2.0/path-resolution.md#symlinks + if path.IsAbs(oldName) { + return experimentalsys.EPERM + } // Note: do not resolve `oldName` relative to this dirFS. The link result is always resolved // when dereference the `link` on its usage (e.g. readlink, read, etc). // https://github.com/bytecodealliance/cap-std/blob/v1.0.4/cap-std/src/fs/dir.rs#L404-L409 |