Add missing headers

[libs/core.git] / source / fs / stat.cpp

diff --git a/source/fs/stat.cpp b/source/fs/stat.cpp
index 2419c2990c9bd9353f06e1ddcaf481afae6bb03e..f5e914eada807aa0ee356c736fd6a63fbecb3be0 100644 (file)
--- 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)
@@ -110,16 +114,18 @@ Stat Stat::stat(const Path &path)
        result.mtime = Time::TimeStamp(Time::filetime_to_rawtime(info.ftLastWriteTime));
 
        PSECURITY_DESCRIPTOR sec_desc;
-       PSID owner;
-       PSID group;
+       PSID owner = 0;
+       PSID group = 0;
        if(!GetSecurityInfo(handle, SE_FILE_OBJECT, OWNER_SECURITY_INFORMATION|GROUP_SECURITY_INFORMATION, &owner, &group, 0, 0, &sec_desc))
        {
                CloseHandle(handle);
                throw system_error("GetSecurityInfo");
        }
 
-       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 +136,12 @@ 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 +155,12 @@ 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