9 #include <msp/core/systemerror.h>
10 #include <msp/strings/format.h>
11 #include <msp/time/rawtime_private.h>
20 string get_account_name(PSID sid)
23 DWORD nlen = sizeof(name);
25 DWORD dlen = sizeof(domain);
27 if(!LookupAccountSid(0, sid, name, &nlen, domain, &dlen, &use))
28 throw Msp::system_error("LookupAccountSid");
29 return Msp::format("%s/%s", name, domain);
42 static Stat from_struct_stat(const struct stat &);
45 Stat Stat::Private::from_struct_stat(const struct stat &st)
48 if(S_ISREG(st.st_mode))
49 result.type = REGULAR;
50 else if(S_ISDIR(st.st_mode))
51 result.type = DIRECTORY;
52 else if(S_ISLNK(st.st_mode))
53 result.type = SYMLINK;
55 result.type = UNKNOWN;
56 result.size = st.st_size;
57 result.alloc_size = st.st_blocks*512;
58 result.mtime = Time::TimeStamp::from_unixtime(st.st_mtime);
64 if(!getpwuid_r(st.st_uid, &pw, buf, sizeof(buf), &owner) && owner)
65 result.owner = owner->pw_name;
67 result.owner = format("%d", st.st_uid);
71 if(!getgrgid_r(st.st_gid, &gr, buf, sizeof(buf), &group) && group)
72 result.group = group->gr_name;
74 result.group = format("%d", st.st_gid);
86 Stat Stat::stat(const Path &path)
90 handle = CreateFile(path.str().c_str(), 0, FILE_SHARE_READ, 0, OPEN_EXISTING, 0, 0);
91 if(handle==INVALID_HANDLE_VALUE)
92 throw system_error("CreateFile");
94 BY_HANDLE_FILE_INFORMATION info;
95 if(!GetFileInformationByHandle(handle, &info))
98 throw system_error("GetFileInformationByHandle");
102 if(info.dwFileAttributes&FILE_ATTRIBUTE_DIRECTORY)
103 result.type = DIRECTORY;
105 result.type = REGULAR;
107 result.size = FileSize(info.nFileSizeHigh)<<32 | info.nFileSizeLow;
108 result.alloc_size = (result.size+511)&~511;
109 result.mtime = Time::TimeStamp(Time::filetime_to_rawtime(info.ftLastWriteTime));
111 PSECURITY_DESCRIPTOR sec_desc;
114 if(!GetSecurityInfo(handle, SE_FILE_OBJECT, OWNER_SECURITY_INFORMATION|GROUP_SECURITY_INFORMATION, &owner, &group, 0, 0, &sec_desc))
117 throw system_error("GetSecurityInfo");
120 result.owner = get_account_name(owner);
121 result.group = get_account_name(group);
130 int ret = ::stat(path.str().c_str(), &st);
132 throw system_error("stat");
134 return Private::from_struct_stat(st);
138 Stat Stat::lstat(const Path &path)
144 int ret = ::lstat(path.str().c_str(), &st);
146 throw system_error("lstat");
148 return Private::from_struct_stat(st);
152 bool exists(const Path &path)
155 return GetFileAttributes(path.str().c_str())!=INVALID_FILE_ATTRIBUTES;
157 return access(path.str().c_str(), F_OK)==0;