[PATCH v2 1/5] rpcrt4: Write the function header into the procedure format string.
From: Zebediah Figura <z.figura12(a)gmail.com> Signed-off-by: Zebediah Figura <z.figura12(a)gmail.com> Signed-off-by: Huw Davies <huw(a)codeweavers.com> --- dlls/rpcrt4/ndr_typelib.c | 183 +++++++++++++++++++++++++++++++++++++- 1 file changed, 182 insertions(+), 1 deletion(-) diff --git a/dlls/rpcrt4/ndr_typelib.c b/dlls/rpcrt4/ndr_typelib.c index aa54db20e0..71d87919db 100644 --- a/dlls/rpcrt4/ndr_typelib.c +++ b/dlls/rpcrt4/ndr_typelib.c @@ -22,6 +22,7 @@ #include "oaidl.h" #define USE_STUBLESS_PROXY #include "rpcproxy.h" +#include "ndrtypes.h" #include "wine/debug.h" #include "wine/heap.h" @@ -29,11 +30,191 @@ WINE_DEFAULT_DEBUG_CHANNEL(ole); +#define WRITE_CHAR(str, len, val) \ + do { if ((str)) (str)[(len)] = (val); (len)++; } while (0) +#define WRITE_SHORT(str, len, val) \ + do { if ((str)) *((short *)((str) + (len))) = (val); (len) += 2; } while (0) + +static unsigned int type_memsize(ITypeInfo *typeinfo, TYPEDESC *desc) +{ + switch (desc->vt) + { + case VT_I1: + case VT_UI1: + return 1; + case VT_I2: + case VT_UI2: + case VT_BOOL: + return 2; + case VT_I4: + case VT_UI4: + case VT_R4: + case VT_INT: + case VT_UINT: + case VT_ERROR: + case VT_HRESULT: + return 4; + case VT_I8: + case VT_UI8: + case VT_R8: + case VT_DATE: + return 8; + case VT_BSTR: + case VT_SAFEARRAY: + case VT_PTR: + case VT_UNKNOWN: + case VT_DISPATCH: + return sizeof(void *); + case VT_VARIANT: + return sizeof(VARIANT); + case VT_CARRAY: + { + unsigned int size = type_memsize(typeinfo, &desc->lpadesc->tdescElem); + unsigned int i; + for (i = 0; i < desc->lpadesc->cDims; i++) + size *= desc->lpadesc->rgbounds[i].cElements; + return size; + } + case VT_USERDEFINED: + { + unsigned int size = 0; + ITypeInfo *refinfo; + TYPEATTR *attr; + + ITypeInfo_GetRefTypeInfo(typeinfo, desc->hreftype, &refinfo); + ITypeInfo_GetTypeAttr(refinfo, &attr); + size = attr->cbSizeInstance; + ITypeInfo_ReleaseTypeAttr(refinfo, attr); + ITypeInfo_Release(refinfo); + return size; + } + default: + FIXME("unhandled type %u\n", desc->vt); + return 0; + } +} + +static unsigned short get_stack_size(ITypeInfo *typeinfo, TYPEDESC *desc) +{ +#ifdef __i386__ + if (desc->vt == VT_CARRAY) + return sizeof(void *); + return (type_memsize(typeinfo, desc) + 3) & ~3; +#elif defined(__x86_64__) + return sizeof(void *); +#else +#warn get_stack_size() not implemented for this architecture +#endif +} + +static HRESULT write_param_fs(ITypeInfo *typeinfo, unsigned char *type, + size_t *typelen, unsigned char *proc, size_t *proclen, ELEMDESC *desc, + BOOL is_return, unsigned short *stack_offset) +{ + return E_NOTIMPL; +} + +static void write_proc_func_header(ITypeInfo *typeinfo, FUNCDESC *desc, + WORD proc_idx, unsigned char *proc, size_t *proclen) +{ + unsigned short stack_size = 2 * sizeof(void *); /* This + return */ + WORD param_idx; + + WRITE_CHAR (proc, *proclen, FC_AUTO_HANDLE); + WRITE_CHAR (proc, *proclen, Oi_OBJECT_PROC | Oi_OBJ_USE_V2_INTERPRETER); + WRITE_SHORT(proc, *proclen, proc_idx); + for (param_idx = 0; param_idx < desc->cParams; param_idx++) + stack_size += get_stack_size(typeinfo, &desc->lprgelemdescParam[param_idx].tdesc); + WRITE_SHORT(proc, *proclen, stack_size); + + WRITE_SHORT(proc, *proclen, 0); /* constant_client_buffer_size */ + WRITE_SHORT(proc, *proclen, 0); /* constant_server_buffer_size */ + WRITE_CHAR (proc, *proclen, 0x07); /* HasReturn | ClientMustSize | ServerMustSize */ + WRITE_CHAR (proc, *proclen, desc->cParams + 1); /* incl. return value */ +} + +static HRESULT write_iface_fs(ITypeInfo *typeinfo, WORD funcs, + unsigned char *type, size_t *typelen, unsigned char *proc, + size_t *proclen, unsigned short *offset) +{ + unsigned short stack_offset; + WORD proc_idx, param_idx; + FUNCDESC *desc; + HRESULT hr; + + for (proc_idx = 0; proc_idx < funcs; proc_idx++) + { + TRACE("Writing procedure %d.\n", proc_idx); + + hr = ITypeInfo_GetFuncDesc(typeinfo, proc_idx, &desc); + if (FAILED(hr)) return hr; + + if (offset) + offset[proc_idx] = *proclen; + + write_proc_func_header(typeinfo, desc, proc_idx + 3, proc, proclen); + + stack_offset = sizeof(void *); /* This */ + for (param_idx = 0; param_idx < desc->cParams; param_idx++) + { + TRACE("Writing parameter %d.\n", param_idx); + hr = write_param_fs(typeinfo, type, typelen, proc, proclen, + &desc->lprgelemdescParam[param_idx], FALSE, &stack_offset); + if (FAILED(hr)) + { + ITypeInfo_ReleaseFuncDesc(typeinfo, desc); + return hr; + } + } + + hr = write_param_fs(typeinfo, type, typelen, proc, proclen, + &desc->elemdescFunc, TRUE, &stack_offset); + ITypeInfo_ReleaseFuncDesc(typeinfo, desc); + if (FAILED(hr)) return hr; + } + + return S_OK; +} + static HRESULT build_format_strings(ITypeInfo *typeinfo, WORD funcs, const unsigned char **type_ret, const unsigned char **proc_ret, unsigned short **offset_ret) { - return E_NOTIMPL; + size_t typelen = 0, proclen = 0; + unsigned char *type, *proc; + unsigned short *offset; + HRESULT hr; + + hr = write_iface_fs(typeinfo, funcs, NULL, &typelen, NULL, &proclen, NULL); + if (FAILED(hr)) return hr; + + type = heap_alloc(typelen); + proc = heap_alloc(proclen); + offset = heap_alloc(funcs * sizeof(*offset)); + if (!type || !proc || !offset) + { + ERR("Failed to allocate format strings.\n"); + hr = E_OUTOFMEMORY; + goto err; + } + + typelen = 0; + proclen = 0; + + hr = write_iface_fs(typeinfo, funcs, type, &typelen, proc, &proclen, offset); + if (SUCCEEDED(hr)) + { + *type_ret = type; + *proc_ret = proc; + *offset_ret = offset; + return S_OK; + } + +err: + heap_free(type); + heap_free(proc); + heap_free(offset); + return hr; } /* Common helper for Create{Proxy,Stub}FromTypeInfo(). */ -- 2.18.0
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Huw Davies