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author | ted.mielczarek <ted.mielczarek@4c0a9323-5329-0410-9bdc-e9ce6186880e> | 2012-04-25 11:22:09 +0000 |
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committer | ted.mielczarek <ted.mielczarek@4c0a9323-5329-0410-9bdc-e9ce6186880e> | 2012-04-25 11:22:09 +0000 |
commit | 24c3c97633f691fdf2a3467f63aedde19bf8fec1 (patch) | |
tree | f4a1716bd787e6471e859f9349c9a6b2f267a8dc /src/client | |
parent | Reap child in VerifyStackReadWithMultipleThreads (diff) | |
download | breakpad-24c3c97633f691fdf2a3467f63aedde19bf8fec1.tar.xz |
Fix compilation warnings related to unchecked return values
Patch by Chris Dearman <chris@mips.com>
R=benchan at http://breakpad.appspot.com/377001
git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@957 4c0a9323-5329-0410-9bdc-e9ce6186880e
Diffstat (limited to 'src/client')
3 files changed, 43 insertions, 28 deletions
diff --git a/src/client/linux/handler/exception_handler_unittest.cc b/src/client/linux/handler/exception_handler_unittest.cc index 84fc08ed..6fcf251b 100644 --- a/src/client/linux/handler/exception_handler_unittest.cc +++ b/src/client/linux/handler/exception_handler_unittest.cc @@ -669,7 +669,14 @@ CrashHandler(const void* crash_context, size_t crash_context_size, void* context) { const int fd = (intptr_t) context; int fds[2]; - pipe(fds); + if (pipe(fds) == -1) { + // There doesn't seem to be any way to reliably handle + // this failure without the parent process hanging + // At least make sure that this process doesn't access + // unexpected file descriptors + fds[0] = -1; + fds[1] = -1; + } struct kernel_msghdr msg = {0}; struct kernel_iovec iov; iov.iov_base = const_cast<void*>(crash_context); diff --git a/src/client/linux/minidump_writer/line_reader_unittest.cc b/src/client/linux/minidump_writer/line_reader_unittest.cc index a2ea17f7..17a54679 100644 --- a/src/client/linux/minidump_writer/line_reader_unittest.cc +++ b/src/client/linux/minidump_writer/line_reader_unittest.cc @@ -33,6 +33,7 @@ #include "client/linux/minidump_writer/line_reader.h" #include "breakpad_googletest_includes.h" +#include "common/linux/eintr_wrapper.h" using namespace google_breakpad; @@ -70,16 +71,17 @@ TEST(LineReaderTest, EmptyFile) { TEST(LineReaderTest, OneLineTerminated) { const int fd = TemporaryFile(); - write(fd, "a\n", 2); + const int r = HANDLE_EINTR(write(fd, "a\n", 2)); + ASSERT_EQ(2, r); lseek(fd, 0, SEEK_SET); LineReader reader(fd); const char *line; unsigned int len; ASSERT_TRUE(reader.GetNextLine(&line, &len)); - ASSERT_EQ(len, (unsigned int)1); - ASSERT_EQ(line[0], 'a'); - ASSERT_EQ(line[1], 0); + ASSERT_EQ((unsigned int)1, len); + ASSERT_EQ('a', line[0]); + ASSERT_EQ('\0', line[1]); reader.PopLine(len); ASSERT_FALSE(reader.GetNextLine(&line, &len)); @@ -89,16 +91,17 @@ TEST(LineReaderTest, OneLineTerminated) { TEST(LineReaderTest, OneLine) { const int fd = TemporaryFile(); - write(fd, "a", 1); + const int r = HANDLE_EINTR(write(fd, "a", 1)); + ASSERT_EQ(1, r); lseek(fd, 0, SEEK_SET); LineReader reader(fd); const char *line; unsigned len; ASSERT_TRUE(reader.GetNextLine(&line, &len)); - ASSERT_EQ(len, (unsigned)1); - ASSERT_EQ(line[0], 'a'); - ASSERT_EQ(line[1], 0); + ASSERT_EQ((unsigned)1, len); + ASSERT_EQ('a', line[0]); + ASSERT_EQ('\0', line[1]); reader.PopLine(len); ASSERT_FALSE(reader.GetNextLine(&line, &len)); @@ -108,22 +111,23 @@ TEST(LineReaderTest, OneLine) { TEST(LineReaderTest, TwoLinesTerminated) { const int fd = TemporaryFile(); - write(fd, "a\nb\n", 4); + const int r = HANDLE_EINTR(write(fd, "a\nb\n", 4)); + ASSERT_EQ(4, r); lseek(fd, 0, SEEK_SET); LineReader reader(fd); const char *line; unsigned len; ASSERT_TRUE(reader.GetNextLine(&line, &len)); - ASSERT_EQ(len, (unsigned)1); - ASSERT_EQ(line[0], 'a'); - ASSERT_EQ(line[1], 0); + ASSERT_EQ((unsigned)1, len); + ASSERT_EQ('a', line[0]); + ASSERT_EQ('\0', line[1]); reader.PopLine(len); ASSERT_TRUE(reader.GetNextLine(&line, &len)); - ASSERT_EQ(len, (unsigned)1); - ASSERT_EQ(line[0], 'b'); - ASSERT_EQ(line[1], 0); + ASSERT_EQ((unsigned)1, len); + ASSERT_EQ('b', line[0]); + ASSERT_EQ('\0', line[1]); reader.PopLine(len); ASSERT_FALSE(reader.GetNextLine(&line, &len)); @@ -133,22 +137,23 @@ TEST(LineReaderTest, TwoLinesTerminated) { TEST(LineReaderTest, TwoLines) { const int fd = TemporaryFile(); - write(fd, "a\nb", 3); + const int r = HANDLE_EINTR(write(fd, "a\nb", 3)); + ASSERT_EQ(3, r); lseek(fd, 0, SEEK_SET); LineReader reader(fd); const char *line; unsigned len; ASSERT_TRUE(reader.GetNextLine(&line, &len)); - ASSERT_EQ(len, (unsigned)1); - ASSERT_EQ(line[0], 'a'); - ASSERT_EQ(line[1], 0); + ASSERT_EQ((unsigned)1, len); + ASSERT_EQ('a', line[0]); + ASSERT_EQ('\0', line[1]); reader.PopLine(len); ASSERT_TRUE(reader.GetNextLine(&line, &len)); - ASSERT_EQ(len, (unsigned)1); - ASSERT_EQ(line[0], 'b'); - ASSERT_EQ(line[1], 0); + ASSERT_EQ((unsigned)1, len); + ASSERT_EQ('b', line[0]); + ASSERT_EQ('\0', line[1]); reader.PopLine(len); ASSERT_FALSE(reader.GetNextLine(&line, &len)); @@ -160,16 +165,17 @@ TEST(LineReaderTest, MaxLength) { const int fd = TemporaryFile(); char l[LineReader::kMaxLineLen - 1]; memset(l, 'a', sizeof(l)); - write(fd, l, sizeof(l)); + const int r = HANDLE_EINTR(write(fd, l, sizeof(l))); + ASSERT_EQ(sizeof(l), r); lseek(fd, 0, SEEK_SET); LineReader reader(fd); const char *line; unsigned len; ASSERT_TRUE(reader.GetNextLine(&line, &len)); - ASSERT_EQ(len, sizeof(l)); + ASSERT_EQ(sizeof(l), len); ASSERT_TRUE(memcmp(l, line, sizeof(l)) == 0); - ASSERT_EQ(line[len], 0); + ASSERT_EQ('\0', line[len]); close(fd); } @@ -178,7 +184,8 @@ TEST(LineReaderTest, TooLong) { const int fd = TemporaryFile(); char l[LineReader::kMaxLineLen]; memset(l, 'a', sizeof(l)); - write(fd, l, sizeof(l)); + const int r = HANDLE_EINTR(write(fd, l, sizeof(l))); + ASSERT_EQ(sizeof(l), r); lseek(fd, 0, SEEK_SET); LineReader reader(fd); diff --git a/src/client/linux/minidump_writer/minidump_writer_unittest.cc b/src/client/linux/minidump_writer/minidump_writer_unittest.cc index ef1e7a54..91aafed7 100644 --- a/src/client/linux/minidump_writer/minidump_writer_unittest.cc +++ b/src/client/linux/minidump_writer/minidump_writer_unittest.cc @@ -338,7 +338,8 @@ TEST(MinidumpWriterTest, DeletedBinary) { ASSERT_EQ(1, r); ASSERT_TRUE(pfd.revents & POLLIN); uint8_t junk; - read(fds[0], &junk, sizeof(junk)); + const int nr = HANDLE_EINTR(read(fds[0], &junk, sizeof(junk))); + ASSERT_EQ(sizeof(junk), nr); close(fds[0]); // Child is ready now. |