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authormmentovai <mmentovai@4c0a9323-5329-0410-9bdc-e9ce6186880e>2007-03-30 20:30:08 +0000
committermmentovai <mmentovai@4c0a9323-5329-0410-9bdc-e9ce6186880e>2007-03-30 20:30:08 +0000
commitaec44489da7da17b5babd9343850257558741fa2 (patch)
tree25f5b508ab1f7c0922e909f3b1ca7440fc529f30 /src/common/windows
parentFix issue 136. (diff)
downloadbreakpad-aec44489da7da17b5babd9343850257558741fa2.tar.xz
vswprintf causes Purify to fail (#145). r=darin
http://groups.google.com/group/google-breakpad-dev/browse_thread/thread/88e18d9fac4eee22 git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@135 4c0a9323-5329-0410-9bdc-e9ce6186880e
Diffstat (limited to 'src/common/windows')
-rw-r--r--src/common/windows/guid_string.cc8
-rw-r--r--src/common/windows/http_upload.cc4
-rw-r--r--src/common/windows/pdb_source_line_writer.cc17
-rw-r--r--src/common/windows/string_utils-inl.h32
4 files changed, 31 insertions, 30 deletions
diff --git a/src/common/windows/guid_string.cc b/src/common/windows/guid_string.cc
index e77432a3..dcc22aa0 100644
--- a/src/common/windows/guid_string.cc
+++ b/src/common/windows/guid_string.cc
@@ -42,26 +42,30 @@ namespace google_breakpad {
// static
wstring GUIDString::GUIDToWString(GUID *guid) {
wchar_t guid_string[37];
- WindowsStringUtils::safe_swprintf(
+ swprintf(
guid_string, sizeof(guid_string) / sizeof(guid_string[0]),
L"%08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x",
guid->Data1, guid->Data2, guid->Data3,
guid->Data4[0], guid->Data4[1], guid->Data4[2],
guid->Data4[3], guid->Data4[4], guid->Data4[5],
guid->Data4[6], guid->Data4[7]);
+ GB_WSU_SAFE_SWPRINTF_TERMINATE(guid_string,
+ sizeof(guid_string) / sizeof(guid_string[0]));
return wstring(guid_string);
}
// static
wstring GUIDString::GUIDToSymbolServerWString(GUID *guid) {
wchar_t guid_string[33];
- WindowsStringUtils::safe_swprintf(
+ swprintf(
guid_string, sizeof(guid_string) / sizeof(guid_string[0]),
L"%08X%04X%04X%02X%02X%02X%02X%02X%02X%02X%02X",
guid->Data1, guid->Data2, guid->Data3,
guid->Data4[0], guid->Data4[1], guid->Data4[2],
guid->Data4[3], guid->Data4[4], guid->Data4[5],
guid->Data4[6], guid->Data4[7]);
+ GB_WSU_SAFE_SWPRINTF_TERMINATE(guid_string,
+ sizeof(guid_string) / sizeof(guid_string[0]));
return wstring(guid_string);
}
diff --git a/src/common/windows/http_upload.cc b/src/common/windows/http_upload.cc
index 5fe3b6dc..86ecf37a 100644
--- a/src/common/windows/http_upload.cc
+++ b/src/common/windows/http_upload.cc
@@ -213,8 +213,8 @@ wstring HTTPUpload::GenerateMultipartBoundary() {
int r1 = rand();
wchar_t temp[kBoundaryLength];
- WindowsStringUtils::safe_swprintf(temp, kBoundaryLength, L"%s%08X%08X",
- kBoundaryPrefix, r0, r1);
+ swprintf(temp, kBoundaryLength, L"%s%08X%08X", kBoundaryPrefix, r0, r1);
+ GB_WSU_SAFE_SWPRINTF_TERMINATE(temp, kBoundaryLength);
return wstring(temp);
}
diff --git a/src/common/windows/pdb_source_line_writer.cc b/src/common/windows/pdb_source_line_writer.cc
index 071940d6..9f4ae4b5 100644
--- a/src/common/windows/pdb_source_line_writer.cc
+++ b/src/common/windows/pdb_source_line_writer.cc
@@ -723,9 +723,10 @@ bool PDBSourceLineWriter::GetModuleInfo(PDBModuleInfo *info) {
// Use the same format that the MS symbol server uses in filesystem
// hierarchies.
wchar_t age_string[9];
- WindowsStringUtils::safe_swprintf(
- age_string, sizeof(age_string) / sizeof(age_string[0]),
- L"%x", age);
+ swprintf(age_string, sizeof(age_string) / sizeof(age_string[0]),
+ L"%x", age);
+ GB_WSU_SAFE_SWPRINTF_TERMINATE(age_string,
+ sizeof(age_string) / sizeof(age_string[0]));
info->debug_identifier = GUIDString::GUIDToSymbolServerWString(&guid);
info->debug_identifier.append(age_string);
@@ -738,10 +739,12 @@ bool PDBSourceLineWriter::GetModuleInfo(PDBModuleInfo *info) {
// Use the same format that the MS symbol server uses in filesystem
// hierarchies.
wchar_t identifier_string[17];
- WindowsStringUtils::safe_swprintf(
- identifier_string,
- sizeof(identifier_string) / sizeof(identifier_string[0]),
- L"%08X%x", signature, age);
+ swprintf(identifier_string,
+ sizeof(identifier_string) / sizeof(identifier_string[0]),
+ L"%08X%x", signature, age);
+ GB_WSU_SAFE_SWPRINTF_TERMINATE(identifier_string,
+ sizeof(identifier_string) /
+ sizeof(identifier_string[0]));
info->debug_identifier = identifier_string;
}
diff --git a/src/common/windows/string_utils-inl.h b/src/common/windows/string_utils-inl.h
index de6e2e25..fd7bc228 100644
--- a/src/common/windows/string_utils-inl.h
+++ b/src/common/windows/string_utils-inl.h
@@ -49,6 +49,19 @@
#define WIN_STRING_FORMAT_LL "I64"
#endif // MSC_VER >= 1400
+// When using swprintf, call GB_WSU_SWPRINTF_TERMINATE afterwards using the
+// first two arguments to swprintf. This will ensure that the buffer is
+// 0-terminated. MSVC8's swprintf always 0-terminates the buffer, so the
+// macro is a no-op. This is done in a macro rather than a function
+// because the function approach relies on vswprintf, which is incompatible
+// with some analysis tools.
+#if _MSC_VER >= 1400 // MSVC 2005/8
+#define GB_WSU_SAFE_SWPRINTF_TERMINATE(buffer, count);
+#else // _MSC_VER >= 1400
+#define GB_WSU_SAFE_SWPRINTF_TERMINATE(buffer, count); \
+ (buffer)[(count) - 1] = L'\0';
+#endif // _MSC_VER >= 1400
+
namespace google_breakpad {
using std::string;
@@ -56,10 +69,6 @@ using std::wstring;
class WindowsStringUtils {
public:
- // Equivalent to MSVC8's swprintf, which always 0-terminates buffer.
- static void safe_swprintf(wchar_t *buffer, size_t count,
- const wchar_t *format, ...);
-
// Roughly equivalent to MSVC8's wcscpy_s, except pre-MSVC8, this does
// not fail if source is longer than destination_size. The destination
// buffer is always 0-terminated.
@@ -90,21 +99,6 @@ class WindowsStringUtils {
};
// static
-inline void WindowsStringUtils::safe_swprintf(wchar_t *buffer, size_t count,
- const wchar_t *format, ...) {
- va_list args;
- va_start(args, format);
- vswprintf(buffer, count, format, args);
-
-#if _MSC_VER < 1400 // MSVC 2005/8
- // Pre-MSVC 2005/8 doesn't 0-terminate the buffer if the formatted string
- // is larger than the buffer. Ensure that the string is 0-terminated.
- if (buffer && count)
- buffer[count - 1] = 0;
-#endif // _MSC_VER < 1400
-}
-
-// static
inline void WindowsStringUtils::safe_wcscpy(wchar_t *destination,
size_t destination_size,
const wchar_t *source) {