Open
Description
Describe the bug
Hard link creation successful print but the file do not exist.
Related to #4870
Steps to reproduce
(1)The test case is :
#include <stdio.h>
#include <fcntl.h>
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
int get_fd(const char *filename, int flags) {
int fd = open(filename, flags);
if (fd == -1) {
printf("Get file descriptor of file %s failed!\n", filename);
return -1;
} else {
printf("Get file descriptor of file %s succeed!\n", filename);
return fd;
}
}
void closebyfd(int fd) {
if (close(fd) == -1) {
printf("Close the file %d by descriptor failed!\n", fd);
}
}
void path_link_00002_Nan21() {
printf("Enter function path_link_00002_Nan21\n");
int result = linkat(AT_FDCWD, "subdir_2/subdir_1/subfile_3", AT_FDCWD, "HARDLINKFILE", AT_SYMLINK_NOFOLLOW);
if (result == -1) {
printf("linkat failed");
} else {
printf("Hard link creation successful\n");
}
}
int main() {
printf("Enter function main\n");
path_link_00002_Nan21();
return 0;
}
(2)compile to wasm:./wasi-sdk-21.0/bin/clang --target=wasm32-unkown-wasi --sysroot=./wasi-sdk-21.0/share/wasi-sysroot test.c -o test.wasm
(3)Running wasm:
(Before run the Wasm file, file subdir_2/subdir_1/subfile_3 exists.)
wasmer run --dir=. test.wasm
Expected behavior
Successfully create the link file and print:
Enter function main
Enter function path_link_00002_Nan21
Hard link creation successful
And this is what WAMR, wasmtime and WasmEdge do.
Actual behavior
wasmer print:
Enter function main
Enter function path_link_00002_Nan21
Hard link creation successful
But the file HARDLINKFILE does not exist checking by command line, which is different from wasmtime, WAMR and WasmEdge.
Additional context
Ubuntu 20.04
x86_64
wasmer-4.2.2