From d76f7f12042b1c82002537b2d7b6823fdb778238 Mon Sep 17 00:00:00 2001 From: Henri Verbeet Date: Wed, 25 May 2016 20:04:02 +0200 Subject: [PATCH] d3d10: Introduce fx10_copy_string() (AFL). Signed-off-by: Henri Verbeet Signed-off-by: Alexandre Julliard --- dlls/d3d10/effect.c | 142 ++++++++++++++++++++++++++++---------------- 1 file changed, 90 insertions(+), 52 deletions(-) diff --git a/dlls/d3d10/effect.c b/dlls/d3d10/effect.c index 2e1d2c67ce5..2085d934d1d 100644 --- a/dlls/d3d10/effect.c +++ b/dlls/d3d10/effect.c @@ -110,7 +110,8 @@ static struct d3d10_effect_variable anonymous_ps = {{(const ID3D10EffectVariable static struct d3d10_effect_variable anonymous_gs = {{(const ID3D10EffectVariableVtbl *)&d3d10_effect_shader_variable_vtbl}, &null_local_buffer, &anonymous_gs_type, anonymous_name}; -static struct d3d10_effect_type *get_fx10_type(struct d3d10_effect *effect, const char *data, DWORD offset); +static struct d3d10_effect_type *get_fx10_type(struct d3d10_effect *effect, + const char *data, size_t data_size, DWORD offset); static inline struct d3d10_effect_variable *impl_from_ID3D10EffectVariable(ID3D10EffectVariable *iface) { @@ -243,6 +244,38 @@ static const struct d3d10_effect_state_storage_info d3d10_effect_state_storage_i {D3D10_SVT_SAMPLER, sizeof(default_sampler_desc), &default_sampler_desc }, }; +static BOOL fx10_copy_string(const char *data, size_t data_size, DWORD offset, char **s) +{ + size_t len, max_len; + + if (offset >= data_size) + { + WARN("Invalid offset %#x (data size %#lx).\n", offset, (long)data_size); + return FALSE; + } + + max_len = data_size - offset; + if (!(len = strnlen(data + offset, max_len))) + { + *s = NULL; + return TRUE; + } + + if (len == max_len) + return FALSE; + + ++len; + if (!(*s = HeapAlloc(GetProcessHeap(), 0, len))) + { + ERR("Failed to allocate string memory.\n"); + return FALSE; + } + + memcpy(*s, data + offset, len); + + return TRUE; +} + static BOOL copy_name(const char *ptr, char **name) { size_t name_len; @@ -541,17 +574,17 @@ static D3D10_SHADER_VARIABLE_TYPE d3d10_variable_type(DWORD t, BOOL is_object) } } -static HRESULT parse_fx10_type(struct d3d10_effect_type *t, const char *ptr, const char *data) +static HRESULT parse_fx10_type(const char *data, size_t data_size, DWORD offset, struct d3d10_effect_type *t) { + const char *ptr = data + offset; DWORD unknown0; - DWORD offset; DWORD typeinfo; unsigned int i; read_dword(&ptr, &offset); TRACE("Type name at offset %#x.\n", offset); - if (!copy_name(data + offset, &t->name)) + if (!fx10_copy_string(data, data_size, offset, &t->name)) { ERR("Failed to copy name.\n"); return E_OUTOFMEMORY; @@ -633,7 +666,7 @@ static HRESULT parse_fx10_type(struct d3d10_effect_type *t, const char *ptr, con read_dword(&ptr, &offset); TRACE("Member name at offset %#x.\n", offset); - if (!copy_name(data + offset, &typem->name)) + if (!fx10_copy_string(data, data_size, offset, &typem->name)) { ERR("Failed to copy name.\n"); return E_OUTOFMEMORY; @@ -643,7 +676,7 @@ static HRESULT parse_fx10_type(struct d3d10_effect_type *t, const char *ptr, con read_dword(&ptr, &offset); TRACE("Member semantic at offset %#x.\n", offset); - if (!copy_name(data + offset, &typem->semantic)) + if (!fx10_copy_string(data, data_size, offset, &typem->semantic)) { ERR("Failed to copy semantic.\n"); return E_OUTOFMEMORY; @@ -656,8 +689,7 @@ static HRESULT parse_fx10_type(struct d3d10_effect_type *t, const char *ptr, con read_dword(&ptr, &offset); TRACE("Member type info at offset %#x.\n", offset); - typem->type = get_fx10_type(t->effect, data, offset); - if (!typem->type) + if (!(typem->type = get_fx10_type(t->effect, data, data_size, offset))) { ERR("Failed to get variable type.\n"); return E_FAIL; @@ -730,7 +762,8 @@ static HRESULT parse_fx10_type(struct d3d10_effect_type *t, const char *ptr, con return S_OK; } -static struct d3d10_effect_type *get_fx10_type(struct d3d10_effect *effect, const char *data, DWORD offset) +static struct d3d10_effect_type *get_fx10_type(struct d3d10_effect *effect, + const char *data, size_t data_size, DWORD offset) { struct d3d10_effect_type *type; struct wine_rb_entry *entry; @@ -753,8 +786,7 @@ static struct d3d10_effect_type *get_fx10_type(struct d3d10_effect *effect, cons type->ID3D10EffectType_iface.lpVtbl = &d3d10_effect_type_vtbl; type->id = offset; type->effect = effect; - hr = parse_fx10_type(type, data + offset, data); - if (FAILED(hr)) + if (FAILED(hr = parse_fx10_type(data, data_size, offset, type))) { ERR("Failed to parse type info, hr %#x.\n", hr); HeapFree(GetProcessHeap(), 0, type); @@ -950,14 +982,15 @@ static HRESULT copy_variableinfo_from_type(struct d3d10_effect_variable *v) return S_OK; } -static HRESULT parse_fx10_variable_head(struct d3d10_effect_variable *v, const char **ptr, const char *data) +static HRESULT parse_fx10_variable_head(const char *data, size_t data_size, + const char **ptr, struct d3d10_effect_variable *v) { DWORD offset; read_dword(ptr, &offset); TRACE("Variable name at offset %#x.\n", offset); - if (!copy_name(data + offset, &v->name)) + if (!fx10_copy_string(data, data_size, offset, &v->name)) { ERR("Failed to copy name.\n"); return E_OUTOFMEMORY; @@ -967,8 +1000,7 @@ static HRESULT parse_fx10_variable_head(struct d3d10_effect_variable *v, const c read_dword(ptr, &offset); TRACE("Variable type info at offset %#x.\n", offset); - v->type = get_fx10_type(v->effect, data, offset); - if (!v->type) + if (!(v->type = get_fx10_type(v->effect, data, data_size, offset))) { ERR("Failed to get variable type.\n"); return E_FAIL; @@ -978,12 +1010,13 @@ static HRESULT parse_fx10_variable_head(struct d3d10_effect_variable *v, const c return copy_variableinfo_from_type(v); } -static HRESULT parse_fx10_annotation(struct d3d10_effect_variable *a, const char **ptr, const char *data) +static HRESULT parse_fx10_annotation(const char *data, size_t data_size, + const char **ptr, struct d3d10_effect_variable *a) { HRESULT hr; - hr = parse_fx10_variable_head(a, ptr, data); - if (FAILED(hr)) return hr; + if (FAILED(hr = parse_fx10_variable_head(data, data_size, ptr, a))) + return hr; skip_dword_unknown("annotation", ptr, 1); @@ -1438,7 +1471,8 @@ static HRESULT parse_fx10_object(struct d3d10_effect_object *o, const char **ptr return S_OK; } -static HRESULT parse_fx10_pass(struct d3d10_effect_pass *p, const char **ptr, const char *data) +static HRESULT parse_fx10_pass(const char *data, size_t data_size, + const char **ptr, struct d3d10_effect_pass *p) { HRESULT hr = S_OK; unsigned int i; @@ -1447,7 +1481,7 @@ static HRESULT parse_fx10_pass(struct d3d10_effect_pass *p, const char **ptr, co read_dword(ptr, &offset); TRACE("Pass name at offset %#x.\n", offset); - if (!copy_name(data + offset, &p->name)) + if (!fx10_copy_string(data, data_size, offset, &p->name)) { ERR("Failed to copy name.\n"); return E_OUTOFMEMORY; @@ -1473,8 +1507,8 @@ static HRESULT parse_fx10_pass(struct d3d10_effect_pass *p, const char **ptr, co a->effect = p->technique->effect; a->buffer = &null_local_buffer; - hr = parse_fx10_annotation(a, ptr, data); - if (FAILED(hr)) return hr; + if (FAILED(hr = parse_fx10_annotation(data, data_size, ptr, a))) + return hr; } if (!(p->objects = d3d10_calloc(p->object_count, sizeof(*p->objects)))) @@ -1500,7 +1534,8 @@ static HRESULT parse_fx10_pass(struct d3d10_effect_pass *p, const char **ptr, co return hr; } -static HRESULT parse_fx10_technique(struct d3d10_effect_technique *t, const char **ptr, const char *data) +static HRESULT parse_fx10_technique(const char *data, size_t data_size, + const char **ptr, struct d3d10_effect_technique *t) { unsigned int i; DWORD offset; @@ -1509,7 +1544,7 @@ static HRESULT parse_fx10_technique(struct d3d10_effect_technique *t, const char read_dword(ptr, &offset); TRACE("Technique name at offset %#x.\n", offset); - if (!copy_name(data + offset, &t->name)) + if (!fx10_copy_string(data, data_size, offset, &t->name)) { ERR("Failed to copy name.\n"); return E_OUTOFMEMORY; @@ -1535,8 +1570,8 @@ static HRESULT parse_fx10_technique(struct d3d10_effect_technique *t, const char a->effect = t->effect; a->buffer = &null_local_buffer; - hr = parse_fx10_annotation(a, ptr, data); - if (FAILED(hr)) return hr; + if (FAILED(hr = parse_fx10_annotation(data, data_size, ptr, a))) + return hr; } if (!(t->passes = d3d10_calloc(t->pass_count, sizeof(*t->passes)))) @@ -1552,26 +1587,27 @@ static HRESULT parse_fx10_technique(struct d3d10_effect_technique *t, const char p->ID3D10EffectPass_iface.lpVtbl = &d3d10_effect_pass_vtbl; p->technique = t; - hr = parse_fx10_pass(p, ptr, data); - if (FAILED(hr)) return hr; + if (FAILED(hr = parse_fx10_pass(data, data_size, ptr, p))) + return hr; } return S_OK; } -static HRESULT parse_fx10_variable(struct d3d10_effect_variable *v, const char **ptr, const char *data) +static HRESULT parse_fx10_variable(const char *data, size_t data_size, + const char **ptr, struct d3d10_effect_variable *v) { DWORD offset; unsigned int i; HRESULT hr; - hr = parse_fx10_variable_head(v, ptr, data); - if (FAILED(hr)) return hr; + if (FAILED(hr = parse_fx10_variable_head(data, data_size, ptr, v))) + return hr; read_dword(ptr, &offset); TRACE("Variable semantic at offset %#x.\n", offset); - if (!copy_name(data + offset, &v->semantic)) + if (!fx10_copy_string(data, data_size, offset, &v->semantic)) { ERR("Failed to copy semantic.\n"); return E_OUTOFMEMORY; @@ -1602,8 +1638,8 @@ static HRESULT parse_fx10_variable(struct d3d10_effect_variable *v, const char * a->effect = v->effect; a->buffer = &null_local_buffer; - hr = parse_fx10_annotation(a, ptr, data); - if (FAILED(hr)) return hr; + if (FAILED(hr = parse_fx10_annotation(data, data_size, ptr, a))) + return hr; } return S_OK; @@ -1648,19 +1684,20 @@ static HRESULT create_state_object(struct d3d10_effect_variable *v) return S_OK; } -static HRESULT parse_fx10_local_variable(struct d3d10_effect_variable *v, const char **ptr, const char *data) +static HRESULT parse_fx10_local_variable(const char *data, size_t data_size, + const char **ptr, struct d3d10_effect_variable *v) { unsigned int i; HRESULT hr; DWORD offset; - hr = parse_fx10_variable_head(v, ptr, data); - if (FAILED(hr)) return hr; + if (FAILED(hr = parse_fx10_variable_head(data, data_size, ptr, v))) + return hr; read_dword(ptr, &offset); TRACE("Variable semantic at offset %#x.\n", offset); - if (!copy_name(data + offset, &v->semantic)) + if (!fx10_copy_string(data, data_size, offset, &v->semantic)) { ERR("Failed to copy semantic.\n"); return E_OUTOFMEMORY; @@ -1775,14 +1812,15 @@ static HRESULT parse_fx10_local_variable(struct d3d10_effect_variable *v, const a->effect = v->effect; a->buffer = &null_local_buffer; - hr = parse_fx10_annotation(a, ptr, data); - if (FAILED(hr)) return hr; + if (FAILED(hr = parse_fx10_annotation(data, data_size, ptr, a))) + return hr; } return S_OK; } -static HRESULT parse_fx10_local_buffer(struct d3d10_effect_variable *l, const char **ptr, const char *data) +static HRESULT parse_fx10_local_buffer(const char *data, size_t data_size, + const char **ptr, struct d3d10_effect_variable *l) { unsigned int i; DWORD offset; @@ -1804,7 +1842,7 @@ static HRESULT parse_fx10_local_buffer(struct d3d10_effect_variable *l, const ch read_dword(ptr, &offset); TRACE("Local buffer name at offset %#x.\n", offset); - if (!copy_name(data + offset, &l->name)) + if (!fx10_copy_string(data, data_size, offset, &l->name)) { ERR("Failed to copy name.\n"); return E_OUTOFMEMORY; @@ -1863,8 +1901,8 @@ static HRESULT parse_fx10_local_buffer(struct d3d10_effect_variable *l, const ch a->effect = l->effect; a->buffer = &null_local_buffer; - hr = parse_fx10_annotation(a, ptr, data); - if (FAILED(hr)) return hr; + if (FAILED(hr = parse_fx10_annotation(data, data_size, ptr, a))) + return hr; } if (!(l->members = d3d10_calloc(l->type->member_count, sizeof(*l->members)))) @@ -1887,8 +1925,8 @@ static HRESULT parse_fx10_local_buffer(struct d3d10_effect_variable *l, const ch v->buffer = l; v->effect = l->effect; - hr = parse_fx10_variable(v, ptr, data); - if (FAILED(hr)) return hr; + if (FAILED(hr = parse_fx10_variable(data, data_size, ptr, v))) + return hr; /* * Copy the values from the variable type to the constant buffers type @@ -2072,8 +2110,8 @@ static HRESULT parse_fx10_body(struct d3d10_effect *e, const char *data, DWORD d l->effect = e; l->buffer = &null_local_buffer; - hr = parse_fx10_local_buffer(l, &ptr, data); - if (FAILED(hr)) return hr; + if (FAILED(hr = parse_fx10_local_buffer(data, data_size, &ptr, l))) + return hr; } for (i = 0; i < e->local_variable_count; ++i) @@ -2084,8 +2122,8 @@ static HRESULT parse_fx10_body(struct d3d10_effect *e, const char *data, DWORD d v->ID3D10EffectVariable_iface.lpVtbl = &d3d10_effect_variable_vtbl; v->buffer = &null_local_buffer; - hr = parse_fx10_local_variable(v, &ptr, data); - if (FAILED(hr)) return hr; + if (FAILED(hr = parse_fx10_local_variable(data, data_size, &ptr, v))) + return hr; } for (i = 0; i < e->technique_count; ++i) @@ -2095,8 +2133,8 @@ static HRESULT parse_fx10_body(struct d3d10_effect *e, const char *data, DWORD d t->ID3D10EffectTechnique_iface.lpVtbl = &d3d10_effect_technique_vtbl; t->effect = e; - hr = parse_fx10_technique(t, &ptr, data); - if (FAILED(hr)) return hr; + if (FAILED(hr = parse_fx10_technique(data, data_size, &ptr, t))) + return hr; } return S_OK;