1 files changed, 167 insertions, 0 deletions
diff --git a/ipc/chromium/src/base/process_util_bsd.cc b/ipc/chromium/src/base/process_util_bsd.cc
new file mode 100644
index 000000000..57cf7fef9
--- /dev/null
+++ b/ipc/chromium/src/base/process_util_bsd.cc
@@ -0,0 +1,167 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+// Copyright (c) 2008 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// derived from process_util_mac.cc
+
+#include "base/process_util.h"
+
+#include <fcntl.h>
+#include <spawn.h>
+#include <sys/wait.h>
+
+#include <string>
+
+#include "nspr.h"
+#include "base/eintr_wrapper.h"
+
+namespace {
+
+static mozilla::EnvironmentLog gProcessLog("MOZ_PROCESS_LOG");
+
+}  // namespace
+
+namespace base {
+
+void FreeEnvVarsArray(char* array[], int length)
+{
+  for (int i = 0; i < length; i++) {
+    free(array[i]);
+  }
+  delete[] array;
+}
+
+bool LaunchApp(const std::vector<std::string>& argv,
+               const file_handle_mapping_vector& fds_to_remap,
+               bool wait, ProcessHandle* process_handle) {
+  return LaunchApp(argv, fds_to_remap, environment_map(),
+                   wait, process_handle);
+}
+
+bool LaunchApp(const std::vector<std::string>& argv,
+               const file_handle_mapping_vector& fds_to_remap,
+               const environment_map& env_vars_to_set,
+               bool wait, ProcessHandle* process_handle,
+               ProcessArchitecture arch) {
+  return LaunchApp(argv, fds_to_remap, env_vars_to_set,
+                   PRIVILEGES_INHERIT,
+                   wait, process_handle);
+}
+
+bool LaunchApp(const std::vector<std::string>& argv,
+               const file_handle_mapping_vector& fds_to_remap,
+               const environment_map& env_vars_to_set,
+               ChildPrivileges privs,
+               bool wait, ProcessHandle* process_handle,
+               ProcessArchitecture arch) {
+  bool retval = true;
+
+  char* argv_copy[argv.size() + 1];
+  for (size_t i = 0; i < argv.size(); i++) {
+    argv_copy[i] = const_cast<char*>(argv[i].c_str());
+  }
+  argv_copy[argv.size()] = NULL;
+
+  // Make sure we don't leak any FDs to the child process by marking all FDs
+  // as close-on-exec.
+  SetAllFDsToCloseOnExec();
+
+  // Copy environment to a new char array and add the variables
+  // in env_vars_to_set.
+  // Existing variables are overwritten by env_vars_to_set.
+  int pos = 0;
+  environment_map combined_env_vars = env_vars_to_set;
+  char **environ = PR_DuplicateEnvironment();
+  while(environ[pos] != NULL) {
+    std::string varString = environ[pos];
+    std::string varName = varString.substr(0, varString.find_first_of('='));
+    std::string varValue = varString.substr(varString.find_first_of('=') + 1);
+    if (combined_env_vars.find(varName) == combined_env_vars.end()) {
+      combined_env_vars[varName] = varValue;
+    }
+    PR_Free(environ[pos++]);
+  }
+  PR_Free(environ);
+  int varsLen = combined_env_vars.size() + 1;
+
+  char** vars = new char*[varsLen];
+  int i = 0;
+  for (environment_map::const_iterator it = combined_env_vars.begin();
+       it != combined_env_vars.end(); ++it) {
+    std::string entry(it->first);
+    entry += "=";
+    entry += it->second;
+    vars[i] = strdup(entry.c_str());
+    i++;
+  }
+  vars[i] = NULL;
+
+  posix_spawn_file_actions_t file_actions;
+  if (posix_spawn_file_actions_init(&file_actions) != 0) {
+    FreeEnvVarsArray(vars, varsLen);
+    return false;
+  }
+
+  // Turn fds_to_remap array into a set of dup2 calls.
+  for (file_handle_mapping_vector::const_iterator it = fds_to_remap.begin();
+       it != fds_to_remap.end();
+       ++it) {
+    int src_fd = it->first;
+    int dest_fd = it->second;
+
+    if (src_fd == dest_fd) {
+      int flags = fcntl(src_fd, F_GETFD);
+      if (flags != -1) {
+        fcntl(src_fd, F_SETFD, flags & ~FD_CLOEXEC);
+      }
+    } else {
+      if (posix_spawn_file_actions_adddup2(&file_actions, src_fd, dest_fd) != 0) {
+        posix_spawn_file_actions_destroy(&file_actions);
+        FreeEnvVarsArray(vars, varsLen);
+        return false;
+      }
+    }
+  }
+
+  pid_t pid = 0;
+  int spawn_succeeded = (posix_spawnp(&pid,
+                                      argv_copy[0],
+                                      &file_actions,
+                                      NULL,
+                                      argv_copy,
+                                      vars) == 0);
+
+  FreeEnvVarsArray(vars, varsLen);
+
+  posix_spawn_file_actions_destroy(&file_actions);
+
+  bool process_handle_valid = pid > 0;
+  if (!spawn_succeeded || !process_handle_valid) {
+    retval = false;
+  } else {
+    gProcessLog.print("==> process %d launched child process %d\n",
+                      GetCurrentProcId(), pid);
+    if (wait)
+      HANDLE_EINTR(waitpid(pid, 0, 0));
+
+    if (process_handle)
+      *process_handle = pid;
+  }
+
+  return retval;
+}
+
+bool LaunchApp(const CommandLine& cl,
+               bool wait, bool start_hidden, ProcessHandle* process_handle) {
+  // TODO(playmobil): Do we need to respect the start_hidden flag?
+  file_handle_mapping_vector no_files;
+  return LaunchApp(cl.argv(), no_files, wait, process_handle);
+}
+
+void SetCurrentProcessPrivileges(ChildPrivileges privs) {
+
+}
+
+}  // namespace base