Move plugin/srpc contents to the more appropriately named plugin/common....

src/trusted/plugin/srpc/browser_interface.cc

-/*
- * Copyright 2008 The Native Client Authors. All rights reserved.
- * Use of this source code is governed by a BSD-style license that can
- * be found in the LICENSE file.
- */
-
-
-// Portable interface for browser interaction - API invariant portions.
-
-#include "native_client/src/trusted/plugin/npapi/browser_impl_npapi.h"
-
-#include <setjmp.h>
-#include <stdio.h>
-#include <string.h>
-
-#include "native_client/src/include/nacl_string.h"
-#include "native_client/src/include/nacl_elf.h"
-#include "native_client/src/include/portability_io.h"
-#include "native_client/src/shared/npruntime/nacl_npapi.h"
-
-namespace plugin {
-
-const char* BrowserInterface::kNoError = "";
-
-// TODO(polina,sehr): move elf checking code to service_runtime.
-bool BrowserInterface::MightBeElfExecutable(const nacl::string& filename,
-                                            nacl::string* error) {
-  FILE* fp = fopen(filename.c_str(), "rb");
-  if (fp == NULL) {
-    *error = "Load failed: cannot open local file for reading.";
-    return false;
-  }
-  char buf[EI_NIDENT];
-  size_t read_amount = fread(buf, sizeof buf, 1, fp);
-  fclose(fp);
-  if (read_amount != 1) {
-    *error = "Load failed: fread should not fail.";
-    return false;
-  }
-  return MightBeElfExecutable(buf, sizeof buf, error);
-}
-
-bool BrowserInterface::MightBeElfExecutable(const char* e_ident_bytes,
-                                            size_t size,
-                                            nacl::string* error) {
-  if (size < EI_NIDENT) {
-    *error = "Load failed: file too short to be an ELF executable.";
-    return false;
-  }
-  if (strncmp(e_ident_bytes, EI_MAG0123, strlen(EI_MAG0123)) != 0) {
-    // This can happen if we read a 404 error page, for example.
-    *error = "Load failed: bad magic number; not an ELF executable.";
-    return false;
-  }
-  if (e_ident_bytes[EI_ABIVERSION] != EF_NACL_ABIVERSION) {
-    nacl::stringstream ss;
-    ss << "Load failed: ABI version mismatch: expected " << EF_NACL_ABIVERSION
-       << ", found " << (unsigned) e_ident_bytes[EI_ABIVERSION] << ".";
-    *error = ss.str();
-    return false;
-  }
-  *error = kNoError;
-  return true;
-}
-
-}  // namespace plugin