diff options
Diffstat (limited to 'lib/backupclient/BackupClientFileAttributes.cpp')
| -rw-r--r-- | lib/backupclient/BackupClientFileAttributes.cpp | 38 |
1 files changed, 29 insertions, 9 deletions
diff --git a/lib/backupclient/BackupClientFileAttributes.cpp b/lib/backupclient/BackupClientFileAttributes.cpp index b3fb33a4..5a47fe74 100644 --- a/lib/backupclient/BackupClientFileAttributes.cpp +++ b/lib/backupclient/BackupClientFileAttributes.cpp @@ -78,6 +78,9 @@ typedef struct typedef struct { int32_t uid, gid, mode; + #ifdef WIN32 + int64_t fileCreationTime; + #endif } attributeHashData; // Use default packing @@ -221,12 +224,15 @@ bool BackupClientFileAttributes::operator==(const BackupClientFileAttributes &rA // // Function // Name: BackupClientFileAttributes::Compare(const BackupClientFileAttributes &, bool) -// Purpose: Compare, optionally ignoring the attribute modification time and/or modification time, and some data which is -// irrelevant in practise (eg file generation number) +// Purpose: Compare, optionally ignoring the attribute +// modification time and/or modification time, and some +// data which is irrelevant in practise (eg file +// generation number) // Created: 10/12/03 // // -------------------------------------------------------------------------- -bool BackupClientFileAttributes::Compare(const BackupClientFileAttributes &rAttr, bool IgnoreAttrModTime, bool IgnoreModTime) const +bool BackupClientFileAttributes::Compare(const BackupClientFileAttributes &rAttr, + bool IgnoreAttrModTime, bool IgnoreModTime) const { EnsureClearAvailable(); rAttr.EnsureClearAvailable(); @@ -1070,14 +1076,18 @@ void BackupClientFileAttributes::SetAttributeHashSecret(const void *pSecret, int // -------------------------------------------------------------------------- // // Function -// Name: BackupClientFileAttributes::GenerateAttributeHash(struct stat &, const std::string &, const std::string &) -// Purpose: Generate a 64 bit hash from the attributes, used to detect changes. -// Include filename in the hash, so that it changes from one file to another, -// so don't reveal identical attributes. +// Name: BackupClientFileAttributes::GenerateAttributeHash( +// struct stat &, const std::string &, +// const std::string &) +// Purpose: Generate a 64 bit hash from the attributes, used to +// detect changes. Include filename in the hash, so +// that it changes from one file to another, so don't +// reveal identical attributes. // Created: 25/4/04 // // -------------------------------------------------------------------------- -uint64_t BackupClientFileAttributes::GenerateAttributeHash(EMU_STRUCT_STAT &st, const std::string &filename, const std::string &leafname) +uint64_t BackupClientFileAttributes::GenerateAttributeHash(EMU_STRUCT_STAT &st, + const std::string &filename, const std::string &leafname) { if(sAttributeHashSecretLength == 0) { @@ -1092,6 +1102,16 @@ uint64_t BackupClientFileAttributes::GenerateAttributeHash(EMU_STRUCT_STAT &st, hashData.gid = htonl(st.st_gid); hashData.mode = htonl(st.st_mode); + #ifdef WIN32 + // On Windows, the "file attribute modification time" is the + // file creation time, and we want to back this up, restore + // it and compare it. + // + // On other platforms, it's not very important and can't + // reliably be set to anything other than the current time. + hashData.fileCreationTime = box_hton64(st.st_ctime); + #endif + StreamableMemBlock xattr; FillExtendedAttr(xattr, filename.c_str()); @@ -1100,7 +1120,7 @@ uint64_t BackupClientFileAttributes::GenerateAttributeHash(EMU_STRUCT_STAT &st, digest.Add(&hashData, sizeof(hashData)); digest.Add(xattr.GetBuffer(), xattr.GetSize()); digest.Add(leafname.c_str(), leafname.size()); - digest.Add(sAttributeHashSecret, sAttributeHashSecretLength); + digest.Add(sAttributeHashSecret, sAttributeHashSecretLength); digest.Finish(); // Return the first 64 bits of the hash |