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[XAM] Fix xeXamUserReadProfileSettingsEx. 

[XAM] Fix xeXamUserReadProfileSettingsEx.

- Properly calculate initial buffer_offset.
- Don't set buffer_size_ptr when its initial value is non-zero.
This commit is contained in:
gibbed 2020-04-13 17:52:09 -05:00 committed by Rick Gibbed
parent a8c3682b6f
commit f631b02bcf
1 changed files with 13 additions and 11 deletions
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22
src/xenia/kernel/xam/xam_user.cc
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@ -163,15 +163,16 @@ uint32_t xeXamUserReadProfileSettingsEx(uint32_t title_id, uint32_t user_index,
return X_ERROR_INVALID_PARAMETER;
}
uint32_t needed_size = 0;
uint32_t needed_header_size = 0;
uint32_t needed_extra_size = 0;
for (uint32_t i = 0; i < setting_count; ++i) {
needed_size += sizeof(X_USER_READ_PROFILE_SETTING);
needed_header_size += sizeof(X_USER_READ_PROFILE_SETTING);
UserProfile::Setting::Key setting_key;
setting_key.value = static_cast<uint32_t>(setting_ids[i]);
switch (static_cast<UserProfile::Setting::Type>(setting_key.type)) {
case UserProfile::Setting::Type::WSTRING:
case UserProfile::Setting::Type::BINARY: {
needed_size += setting_key.size;
needed_extra_size += setting_key.size;
break;
}
default: {
@ -179,15 +180,16 @@ uint32_t xeXamUserReadProfileSettingsEx(uint32_t title_id, uint32_t user_index,
}
}
}
// needed_size *= !xuids_ptr ? 1 : xuid_count;
needed_size += sizeof(X_USER_READ_PROFILE_SETTINGS);
if (xuids_ptr) {
// needed_header_size *= xuid_count;
// needed_extra_size *= !xuid_count;
}
needed_header_size += sizeof(X_USER_READ_PROFILE_SETTINGS);
uint32_t needed_size = needed_header_size + needed_extra_size;
if (!buffer_ptr || buffer_size < needed_size) {
if (!buffer_size) {
*buffer_size_ptr = needed_size;
if (overlapped_ptr) {
kernel_state()->CompleteOverlappedImmediate(overlapped_ptr,
X_ERROR_INSUFFICIENT_BUFFER);
return X_ERROR_IO_PENDING;
}
return X_ERROR_INSUFFICIENT_BUFFER;
}
@ -241,7 +243,7 @@ uint32_t xeXamUserReadProfileSettingsEx(uint32_t title_id, uint32_t user_index,
auto out_setting =
reinterpret_cast<X_USER_READ_PROFILE_SETTING*>(&out_header[1]);
size_t buffer_offset = sizeof(X_USER_READ_PROFILE_SETTINGS);
size_t buffer_offset = needed_header_size;
for (uint32_t n = 0; n < setting_count; ++n) {
uint32_t setting_id = setting_ids[n];
auto setting = user_profile->GetSetting(setting_id);