Index wasi args_get args_sizes_get clock_res_get clock_time_get environ_get environ_sizes_get fd_advise fd_allocate fd_close fd_datasync fd_fdstat_get fd_fdstat_set_flags fd_fdstat_set_rights fd_filestat_get fd_filestat_set_size fd_filestat_set_times fd_pread fd_prestat_dir_name fd_prestat_get fd_pwrite fd_read fd_readdir fd_renumber fd_seek fd_sync fd_tell fd_write file_stat_flags filestat iovec lookup_flags path_create_directory path_filestat_get path_filestat_set_times path_link path_open path_readlink path_remove_directory path_rename path_symlink path_unlink_file poll_oneoff proc_exit proc_raise random_get sched_yield sock_accept sock_recv sock_send sock_shutdown
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Read the value of a symlink
path_readlink (
dir_fd: i32The file descriptor representing the base directory from which the symlink is understoodpath: i32A wasm pointer to a null-terminated string containing the path to the symlinkpath_len: i32The length of the path stringbuf: i32A wasm pointer to a buffer where the target path of the symlink will be writtenbuf_len: i32The available space in the buffer pointed to by bufbuf_used: i32A wasm pointer to a variable where the number of bytes written to the buffer will be stored
) =>
error: i32 

The path_readlink() function reads the target path that a symlink points to. It requires the PATH_READLINK right to be set on the base directory from which the symlink is understood.

On POSIX systems, a similar functionality is provided by the readlink() function. It reads the value of a symbolic link and stores it in a buffer. The readlink() function is part of the POSIX standard and is widely supported across different platforms.

Note

The path_readlink() function reads the target path of a symlink. It checks if the base directory has the necessary rights and reads the target path accordingly. On POSIX systems, a similar functionality is provided by the readlink() function.

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