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mingw: introduce code to detect whether we're inside a Windows container
This will come in handy in the next commit. Signed-off-by: JiSeop Moon <[email protected]> Signed-off-by: Johannes Schindelin <[email protected]>
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compat/mingw.c

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@@ -3990,3 +3990,35 @@ int mingw_have_unix_sockets(void)
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}
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return ret;
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}
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/*
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* Based on https://stackoverflow.com/questions/43002803
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*
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* [HKLM\SYSTEM\CurrentControlSet\Services\cexecsvc]
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* "DisplayName"="@%systemroot%\\system32\\cexecsvc.exe,-100"
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* "ErrorControl"=dword:00000001
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* "ImagePath"=hex(2):25,00,73,00,79,00,73,00,74,00,65,00,6d,00,72,00,6f,00,
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* 6f,00,74,00,25,00,5c,00,73,00,79,00,73,00,74,00,65,00,6d,00,33,00,32,00,
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* 5c,00,63,00,65,00,78,00,65,00,63,00,73,00,76,00,63,00,2e,00,65,00,78,00,
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* 65,00,00,00
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* "Start"=dword:00000002
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* "Type"=dword:00000010
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* "Description"="@%systemroot%\\system32\\cexecsvc.exe,-101"
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* "ObjectName"="LocalSystem"
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* "ServiceSidType"=dword:00000001
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*/
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int is_inside_windows_container(void)
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{
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static int inside_container = -1; /* -1 uninitialized */
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const char *key = "SYSTEM\\CurrentControlSet\\Services\\cexecsvc";
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HKEY handle = NULL;
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if (inside_container != -1)
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return inside_container;
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inside_container = ERROR_SUCCESS ==
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RegOpenKeyExA(HKEY_LOCAL_MACHINE, key, 0, KEY_READ, &handle);
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RegCloseKey(handle);
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return inside_container;
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}

compat/mingw.h

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Original file line numberDiff line numberDiff line change
@@ -728,3 +728,8 @@ int mingw_have_unix_sockets(void);
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#undef have_unix_sockets
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#define have_unix_sockets mingw_have_unix_sockets
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#endif
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/*
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* Check current process is inside Windows Container.
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*/
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int is_inside_windows_container(void);

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