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posix_file.c: Correct the dirfd argument that passes to fstatat (#3244)

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This PR fixes the random failing test case `nofollow_errors` mentioned in
https://github.com/bytecodealliance/wasm-micro-runtime/issues/3222

```C
// dirfd: This is the file descriptor of the directory relative to which the pathname is interpreted. 
int openat(int dirfd, const char *pathname, int flags, ...);
```
The value should be a directory handle instead of a file handle (which is always -1 in this context)
returned from `openat`.
This commit is contained in:
TianlongLiang 2024-03-22 10:55:39 +08:00 committed by GitHub
parent b4941b0cde
commit 64b6c688a2
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1 changed files with 2 additions and 2 deletions
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4
core/shared/platform/common/posix/posix_file.c
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@ -384,7 +384,7 @@ os_openat(os_file_handle handle, const char *path, __wasi_oflags_t oflags,
// Linux returns ENXIO instead of EOPNOTSUPP when opening a socket.
if (openat_errno == ENXIO) {
struct stat sb;
int ret = fstatat(fd, path, &sb,
int ret = fstatat(handle, path, &sb,
(lookup_flags & __WASI_LOOKUP_SYMLINK_FOLLOW)
? 0
: AT_SYMLINK_NOFOLLOW);
@ -396,7 +396,7 @@ os_openat(os_file_handle handle, const char *path, __wasi_oflags_t oflags,
if (openat_errno == ENOTDIR
&& (open_flags & (O_NOFOLLOW | O_DIRECTORY)) != 0) {
struct stat sb;
int ret = fstatat(fd, path, &sb, AT_SYMLINK_NOFOLLOW);
int ret = fstatat(handle, path, &sb, AT_SYMLINK_NOFOLLOW);
if (S_ISLNK(sb.st_mode)) {
return __WASI_ELOOP;
}