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65 lines
1.8 KiB
C++
65 lines
1.8 KiB
C++
/*******************************************************************************
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Copyright(C) Jonas 'Sortie' Termansen 2012.
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This file is part of Sortix.
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Sortix is free software: you can redistribute it and/or modify it under the
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terms of the GNU General Public License as published by the Free Software
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Foundation, either version 3 of the License, or (at your option) any later
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version.
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Sortix is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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details.
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You should have received a copy of the GNU General Public License along with
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Sortix. If not, see <http://www.gnu.org/licenses/>.
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copy.h
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The context for io operations: who made it, how should data be copied, etc.
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*******************************************************************************/
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#include <sortix/kernel/platform.h>
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#include <sortix/kernel/copy.h>
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#include <sortix/kernel/string.h>
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#include <string.h>
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namespace Sortix {
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// TODO: These are currently insecure, please check userspace tables before
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// moving data to avoid security problems.
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bool CopyToUser(void* userdst, const void* ksrc, size_t count)
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{
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memcpy(userdst, ksrc, count);
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return true;
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}
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bool CopyFromUser(void* kdst, const void* usersrc, size_t count)
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{
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//Log::PrintF("[copy.cpp] Copying %zu bytes from 0x%zx to 0x%zx\n", count, usersrc, kdst);
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memcpy(kdst, usersrc, count);
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return true;
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}
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bool CopyToKernel(void* kdst, const void* ksrc, size_t count)
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{
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memcpy(kdst, ksrc, count);
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return true;
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}
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bool CopyFromKernel(void* kdst, const void* ksrc, size_t count)
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{
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memcpy(kdst, ksrc, count);
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return true;
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}
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char* GetStringFromUser(const char* str)
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{
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return String::Clone(str);
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}
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} // namespace Sortix
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