toolkit/crashreporter/google-breakpad/src/common/linux/safe_readlink_unittest.cc

Sat, 03 Jan 2015 20:18:00 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Sat, 03 Jan 2015 20:18:00 +0100
branch
TOR_BUG_3246
changeset 7
129ffea94266
permissions
-rw-r--r--

Conditionally enable double key logic according to:
private browsing mode or privacy.thirdparty.isolate preference and
implement in GetCookieStringCommon and FindCookie where it counts...
With some reservations of how to convince FindCookie users to test
condition and pass a nullptr when disabling double key logic.

     1 // Copyright (c) 2011, Google Inc.
     2 // All rights reserved.
     3 //
     4 // Redistribution and use in source and binary forms, with or without
     5 // modification, are permitted provided that the following conditions are
     6 // met:
     7 //
     8 //     * Redistributions of source code must retain the above copyright
     9 // notice, this list of conditions and the following disclaimer.
    10 //     * Redistributions in binary form must reproduce the above
    11 // copyright notice, this list of conditions and the following disclaimer
    12 // in the documentation and/or other materials provided with the
    13 // distribution.
    14 //     * Neither the name of Google Inc. nor the names of its
    15 // contributors may be used to endorse or promote products derived from
    16 // this software without specific prior written permission.
    17 //
    18 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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    20 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
    21 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
    22 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
    23 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
    24 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
    25 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
    26 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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    28 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
    30 // safe_readlink_unittest.cc: Unit tests for google_breakpad::SafeReadLink.
    32 #include "breakpad_googletest_includes.h"
    33 #include "common/linux/safe_readlink.h"
    35 using google_breakpad::SafeReadLink;
    37 TEST(SafeReadLinkTest, ZeroBufferSize) {
    38   char buffer[1];
    39   EXPECT_FALSE(SafeReadLink("/proc/self/exe", buffer, 0));
    40 }
    42 TEST(SafeReadLinkTest, BufferSizeTooSmall) {
    43   char buffer[1];
    44   EXPECT_FALSE(SafeReadLink("/proc/self/exe", buffer, 1));
    45 }
    47 TEST(SafeReadLinkTest, BoundaryBufferSize) {
    48   char buffer[PATH_MAX];
    49   EXPECT_TRUE(SafeReadLink("/proc/self/exe", buffer, sizeof(buffer)));
    50   size_t path_length = strlen(buffer);
    51   EXPECT_LT(0U, path_length);
    52   EXPECT_GT(sizeof(buffer), path_length);
    54   // Buffer size equals to the expected path length plus 1 for the NULL byte.
    55   char buffer2[PATH_MAX];
    56   EXPECT_TRUE(SafeReadLink("/proc/self/exe", buffer2, path_length + 1));
    57   EXPECT_EQ(path_length, strlen(buffer2));
    58   EXPECT_EQ(0, strncmp(buffer, buffer2, PATH_MAX));
    60   // Buffer size equals to the expected path length.
    61   EXPECT_FALSE(SafeReadLink("/proc/self/exe", buffer, path_length));
    62 }
    64 TEST(SafeReadLinkTest, NonexistentPath) {
    65   char buffer[PATH_MAX];
    66   EXPECT_FALSE(SafeReadLink("nonexistent_path", buffer, sizeof(buffer)));
    67 }
    69 TEST(SafeReadLinkTest, NonSymbolicLinkPath) {
    70   char actual_path[PATH_MAX];
    71   EXPECT_TRUE(SafeReadLink("/proc/self/exe", actual_path, sizeof(actual_path)));
    73   char buffer[PATH_MAX];
    74   EXPECT_FALSE(SafeReadLink(actual_path, buffer, sizeof(buffer)));
    75 }
    77 TEST(SafeReadLinkTest, DeduceBufferSizeFromCharArray) {
    78   char buffer[PATH_MAX];
    79   char* buffer_pointer = buffer;
    80   EXPECT_TRUE(SafeReadLink("/proc/self/exe", buffer_pointer, sizeof(buffer)));
    81   size_t path_length = strlen(buffer);
    83   // Use the template version of SafeReadLink to deduce the buffer size
    84   // from the char array.
    85   char buffer2[PATH_MAX];
    86   EXPECT_TRUE(SafeReadLink("/proc/self/exe", buffer2));
    87   EXPECT_EQ(path_length, strlen(buffer2));
    88   EXPECT_EQ(0, strncmp(buffer, buffer2, PATH_MAX));
    89 }

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