1 files changed, 160 insertions, 0 deletions
diff --git a/externals/breakpad/src/common/tests/file_utils.cc b/externals/breakpad/src/common/tests/file_utils.cc
new file mode 100644
index 0000000000..84a228095e
--- /dev/null
+++ b/externals/breakpad/src/common/tests/file_utils.cc
@@ -0,0 +1,160 @@
+// Copyright 2011 Google LLC
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google LLC nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// file_utils.cc: Implement utility functions for file manipulation.
+// See file_utils.h for details.
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>  // Must come first
+#endif
+
+#include <fcntl.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <unistd.h>
+
+#include "common/linux/eintr_wrapper.h"
+#include "common/tests/file_utils.h"
+
+namespace google_breakpad {
+
+bool CopyFile(const char* from_path, const char* to_path) {
+  int infile = HANDLE_EINTR(open(from_path, O_RDONLY));
+  if (infile < 0) {
+    perror("open");
+    return false;
+  }
+
+  int outfile = HANDLE_EINTR(creat(to_path, 0666));
+  if (outfile < 0) {
+    perror("creat");
+    if (IGNORE_EINTR(close(infile)) < 0) {
+      perror("close");
+    }
+    return false;
+  }
+
+  char buffer[1024];
+  bool result = true;
+
+  while (result) {
+    ssize_t bytes_read = HANDLE_EINTR(read(infile, buffer, sizeof(buffer)));
+    if (bytes_read < 0) {
+      perror("read");
+      result = false;
+      break;
+    }
+    if (bytes_read == 0)
+      break;
+    ssize_t bytes_written_per_read = 0;
+    do {
+      ssize_t bytes_written_partial = HANDLE_EINTR(write(
+          outfile,
+          &buffer[bytes_written_per_read],
+          bytes_read - bytes_written_per_read));
+      if (bytes_written_partial < 0) {
+        perror("write");
+        result = false;
+        break;
+      }
+      bytes_written_per_read += bytes_written_partial;
+    } while (bytes_written_per_read < bytes_read);
+  }
+
+  if (IGNORE_EINTR(close(infile)) == -1) {
+    perror("close");
+    result = false;
+  }
+  if (IGNORE_EINTR(close(outfile)) == -1) {
+    perror("close");
+    result = false;
+  }
+
+  return result;
+}
+
+bool CopyFile(const std::string& from_path, const std::string& to_path) {
+  return CopyFile(from_path.c_str(), to_path.c_str());
+}
+
+bool ReadFile(const char* path, void* buffer, ssize_t* buffer_size) {
+  int fd = HANDLE_EINTR(open(path, O_RDONLY));
+  if (fd == -1) {
+    perror("open");
+    return false;
+  }
+
+  bool ok = true;
+  if (buffer && buffer_size && *buffer_size > 0) {
+    memset(buffer, 0, sizeof(*buffer_size));
+    *buffer_size = HANDLE_EINTR(read(fd, buffer, *buffer_size));
+    if (*buffer_size == -1) {
+      perror("read");
+      ok = false;
+    }
+  }
+  if (IGNORE_EINTR(close(fd)) == -1) {
+    perror("close");
+    ok = false;
+  }
+  return ok;
+}
+
+bool WriteFile(const char* path, const void* buffer, size_t buffer_size) {
+  int fd = HANDLE_EINTR(open(path, O_CREAT | O_TRUNC | O_WRONLY, S_IRWXU));
+  if (fd == -1) {
+    perror("open");
+    return false;
+  }
+
+  bool ok = true;
+  if (buffer) {
+    size_t bytes_written_total = 0;
+    ssize_t bytes_written_partial = 0;
+    const char* data = reinterpret_cast<const char*>(buffer);
+    while (bytes_written_total < buffer_size) {
+      bytes_written_partial =
+          HANDLE_EINTR(write(fd, data + bytes_written_total,
+                             buffer_size - bytes_written_total));
+      if (bytes_written_partial < 0) {
+        perror("write");
+        ok = false;
+        break;
+      }
+      bytes_written_total += bytes_written_partial;
+    }
+  }
+  if (IGNORE_EINTR(close(fd)) == -1) {
+    perror("close");
+    ok = false;
+  }
+  return ok;
+}
+
+}  // namespace google_breakpad