private static ICollection<string> EnumerateResources(NetResource pRsrc, ResourceScope scope, ResourceType type,
ResourceUsage usage, ResourceDisplayType displayType)
{
List<string> result = new List<string>();
uint bufferSize = 16384;
IntPtr buffer = Marshal.AllocHGlobal((int) bufferSize);
try
{
IntPtr handle;
uint cEntries = 1;
ErrorCodes res = WNetOpenEnum(scope, type, usage, pRsrc, out handle);
if (res == ErrorCodes.NoError)
try
{
do
{
res = WNetEnumResource(handle, ref cEntries, buffer, ref bufferSize);
if (res == ErrorCodes.NoError)
{
Marshal.PtrToStructure(buffer, pRsrc);
if (pRsrc.dwDisplayType == displayType)
result.Add(pRsrc.lpRemoteName);
// If the current NetworkResource is a container, we call EnumerateResources recursively.
// In some situations, the lpRemoteName in the NetworkResource is null or empty. In this case
// we do not call EnumerateResources recursively as this leads to an infinite loop of
// recursive calls. For details see Jira MP2-356
if ((pRsrc.dwUsage & ResourceUsage.Container) == ResourceUsage.Container && !String.IsNullOrEmpty(pRsrc.lpRemoteName))
result.AddRange(EnumerateResources(pRsrc, scope, type, usage, displayType));
}
else if (res != ErrorCodes.ErrorNoMoreItems)
break;
} while (res != ErrorCodes.ErrorNoMoreItems);
}
finally
{
WNetCloseEnum(handle);
}
}
finally
{
Marshal.FreeHGlobal(buffer);
}
return result;
}
public static ICollection<string> EnumerateResources(ResourceScope scope, ResourceType type, ResourceUsage usage, ResourceDisplayType displayType)
{
NetResource pRsrc = new NetResource();
return EnumerateResources(pRsrc, scope, type, usage, displayType);
}
private static extern ErrorCodes WNetOpenEnum(ResourceScope dwScope, ResourceType dwType, ResourceUsage dwUsage, NetResource p, out IntPtr lphEnum);
private static ICollection<string> EnumerateResources(NetResource pRsrc, ResourceScope scope, ResourceType type,
ResourceUsage usage, ResourceDisplayType displayType)
{
List<string> result = new List<string>();
uint bufferSize = 16384;
IntPtr buffer = Marshal.AllocHGlobal((int) bufferSize);
try
{
IntPtr handle;
uint cEntries = 1;
ErrorCodes res = WNetOpenEnum(scope, type, usage, pRsrc, out handle);
if (res == ErrorCodes.NoError)
try
{
do
{
res = WNetEnumResource(handle, ref cEntries, buffer, ref bufferSize);
if (res == ErrorCodes.NoError)
{
Marshal.PtrToStructure(buffer, pRsrc);
if (pRsrc.dwDisplayType == displayType)
result.Add(pRsrc.lpRemoteName);
if ((pRsrc.dwUsage & ResourceUsage.Container) == ResourceUsage.Container)
result.AddRange(EnumerateResources(pRsrc, scope, type, usage, displayType));
}
else if (res != ErrorCodes.ErrorNoMoreItems)
break;
} while (res != ErrorCodes.ErrorNoMoreItems);
}
finally
{
WNetCloseEnum(handle);
}
}
finally
{
Marshal.FreeHGlobal(buffer);
}
return result;
}
public static ICollection <string> EnumerateResources(ResourceScope scope, ResourceType type, ResourceUsage usage, ResourceDisplayType displayType)
{
NetResource pRsrc = new NetResource();
return(EnumerateResources(pRsrc, scope, type, usage, displayType));
}
private static extern ErrorCodes WNetOpenEnum(ResourceScope dwScope, ResourceType dwType, ResourceUsage dwUsage, NetResource p, out IntPtr lphEnum);