[Fuzzer] Migrate Fuchsia port from launchpad to fdio_spawn
fdio_spawn is the new public API for launching processes in Fuchsia.
#include <cinttypes>
#include <cstdint>
#include <fcntl.h>
-#include <launchpad/launchpad.h>
+#include <fdio/spawn.h>
#include <string>
#include <sys/select.h>
#include <thread>
@@ -169,16 +169,10 @@ int ExecuteCommand(const Command &Cmd) {
auto Args = Cmd.getArguments();
size_t Argc = Args.size();
assert(Argc != 0);
- std::unique_ptr<const char *[]> Argv(new const char *[Argc]);
+ std::unique_ptr<const char *[]> Argv(new const char *[Argc + 1]);
for (size_t i = 0; i < Argc; ++i)
Argv[i] = Args[i].c_str();
-
- // Create the basic launchpad. Clone everything except stdio.
- launchpad_t *lp;
- launchpad_create(ZX_HANDLE_INVALID, Argv[0], &lp);
- launchpad_load_from_file(lp, Argv[0]);
- launchpad_set_args(lp, Argc, Argv.get());
- launchpad_clone(lp, LP_CLONE_ALL & (~LP_CLONE_FDIO_STDIO));
+ Argv[Argc] = nullptr;
// Determine stdout
int FdOut = STDOUT_FILENO;
@@ -200,17 +194,40 @@ int ExecuteCommand(const Command &Cmd) {
FdErr = FdOut;
// Clone the file descriptors into the new process
- if ((rc = launchpad_clone_fd(lp, STDIN_FILENO, STDIN_FILENO)) != ZX_OK ||
- (rc = launchpad_clone_fd(lp, FdOut, STDOUT_FILENO)) != ZX_OK ||
- (rc = launchpad_clone_fd(lp, FdErr, STDERR_FILENO)) != ZX_OK) {
- Printf("libFuzzer: failed to clone FDIO: %s\n", _zx_status_get_string(rc));
- return rc;
- }
+ fdio_spawn_action_t SpawnAction[] = {
+ {
+ .action = FDIO_SPAWN_ACTION_CLONE_FD,
+ .fd =
+ {
+ .local_fd = STDIN_FILENO,
+ .target_fd = STDIN_FILENO,
+ },
+ },
+ {
+ .action = FDIO_SPAWN_ACTION_CLONE_FD,
+ .fd =
+ {
+ .local_fd = FdOut,
+ .target_fd = STDOUT_FILENO,
+ },
+ },
+ {
+ .action = FDIO_SPAWN_ACTION_CLONE_FD,
+ .fd =
+ {
+ .local_fd = FdErr,
+ .target_fd = STDERR_FILENO,
+ },
+ },
+ };
- // Start the process
+ // Start the process.
+ char ErrorMsg[FDIO_SPAWN_ERR_MSG_MAX_LENGTH];
zx_handle_t ProcessHandle = ZX_HANDLE_INVALID;
- const char *ErrorMsg = nullptr;
- if ((rc = launchpad_go(lp, &ProcessHandle, &ErrorMsg)) != ZX_OK) {
+ rc = fdio_spawn_etc(
+ ZX_HANDLE_INVALID, FDIO_SPAWN_CLONE_ALL & (~FDIO_SPAWN_CLONE_STDIO),
+ Argv[0], Argv.get(), nullptr, 3, SpawnAction, &ProcessHandle, ErrorMsg);
+ if (rc != ZX_OK) {
Printf("libFuzzer: failed to launch '%s': %s, %s\n", Argv[0], ErrorMsg,
_zx_status_get_string(rc));
return rc;
