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#include <wasi/api.h>
#include <errno.h>
off_t __wasilibc_tell(int fildes) {
__wasi_filesize_t offset;
__wasi_errno_t error = __wasi_fd_tell(fildes, &offset);
if (error != 0) {
// lseek returns ESPIPE on when called on a pipe, socket, or fifo,
// which on WASI would translate into ENOTCAPABLE.
errno = error == ENOTCAPABLE ? ESPIPE : error;
return -1;
}
return offset;
}
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