X-Git-Url: http://git.tdb.fi/?p=libs%2Fcore.git;a=blobdiff_plain;f=source%2Ffs%2Fstat.cpp;h=77564f0ecd2d6c49b3297db2733686423de870bb;hp=b0267d8771d08586645261b7a775c3a991f16aeb;hb=330373a422c3b75d117e1a0eed72ca868bccb5b9;hpb=2a3d0cc4d8ef930ed5fc56c480df3c05967489a4

diff --git a/source/fs/stat.cpp b/source/fs/stat.cpp
index b0267d8..77564f0 100644
--- a/source/fs/stat.cpp
+++ b/source/fs/stat.cpp
@@ -3,6 +3,8 @@
 #include <aclapi.h>
 #else
 #define _FILE_OFFSET_BITS 64
+#include <cerrno>
+#include <unistd.h>
 #include <sys/stat.h>
 #include <grp.h>
 #include <pwd.h>
@@ -46,6 +48,7 @@ struct Stat::Private
 Stat Stat::Private::from_struct_stat(const struct stat &st)
 {
 	Stat result;
+	result.exists = true;
 	if(S_ISREG(st.st_mode))
 		result.type = REGULAR;
 	else if(S_ISDIR(st.st_mode))
@@ -79,6 +82,7 @@ Stat Stat::Private::from_struct_stat(const struct stat &st)
 #endif
 
 Stat::Stat():
+	exists(false),
 	type(UNKNOWN),
 	size(0),
 	alloc_size(0)
@@ -88,9 +92,15 @@ Stat Stat::stat(const Path &path)
 {
 #ifdef WIN32
 	HANDLE handle;
-	handle = CreateFile(path.str().c_str(), 0, FILE_SHARE_READ, 0, OPEN_EXISTING, 0, 0);
+	handle = CreateFile(path.str().c_str(), READ_CONTROL, FILE_SHARE_READ, 0, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL|FILE_FLAG_BACKUP_SEMANTICS, 0);
 	if(handle==INVALID_HANDLE_VALUE)
-		throw system_error("CreateFile");
+	{
+		DWORD err = GetLastError();
+		if(err==ERROR_FILE_NOT_FOUND)
+			return Stat();
+		else
+			throw system_error("CreateFile", err);
+	}
 
 	BY_HANDLE_FILE_INFORMATION info;
 	if(!GetFileInformationByHandle(handle, &info))
@@ -110,16 +120,20 @@ Stat Stat::stat(const Path &path)
 	result.mtime = Time::TimeStamp(Time::filetime_to_rawtime(info.ftLastWriteTime));
 
 	PSECURITY_DESCRIPTOR sec_desc;
-	PSID owner;
-	PSID group;
-	if(!GetSecurityInfo(handle, SE_FILE_OBJECT, OWNER_SECURITY_INFORMATION|GROUP_SECURITY_INFORMATION, &owner, &group, 0, 0, &sec_desc))
+	PSID owner = 0;
+	PSID group = 0;
+	const SECURITY_INFORMATION sec_info = OWNER_SECURITY_INFORMATION|GROUP_SECURITY_INFORMATION;
+	DWORD err = GetSecurityInfo(handle, SE_FILE_OBJECT, sec_info, &owner, &group, 0, 0, &sec_desc);
+	if(err)
 	{
 		CloseHandle(handle);
-		throw system_error("GetSecurityInfo");
+		throw system_error("GetSecurityInfo", err);
 	}
 
-	result.owner = get_account_name(owner);
-	result.group = get_account_name(group);
+	if(owner)
+		result.owner = get_account_name(owner);
+	if(group)
+		result.group = get_account_name(group);
 
 	LocalFree(sec_desc);
 
@@ -130,7 +144,12 @@ Stat Stat::stat(const Path &path)
 	struct stat st;
 	int ret = ::stat(path.str().c_str(), &st);
 	if(ret==-1)
-		throw system_error("stat");
+	{
+		if(errno==ENOENT)
+			return Stat();
+		else
+			throw system_error("stat");
+	}
 
 	return Private::from_struct_stat(st);
 #endif
@@ -144,7 +163,12 @@ Stat Stat::lstat(const Path &path)
 	struct stat st;
 	int ret = ::lstat(path.str().c_str(), &st);
 	if(ret==-1)
-		throw system_error("lstat");
+	{
+		if(errno==ENOENT)
+			return Stat();
+		else
+			throw system_error("lstat");
+	}
 
 	return Private::from_struct_stat(st);
 #endif