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8a9a0c58ea
Currently it lets you query the name of the kernel, its version, and the build timestamp of the kernelinfo.cpp file.
70 lines
1.9 KiB
C++
70 lines
1.9 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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kernelinfo.cpp
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Lets user-space query information about the kernel.
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*******************************************************************************/
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#include "platform.h"
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#include <libmaxsi/error.h>
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#include <libmaxsi/string.h>
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#include "syscall.h"
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#include "kernelinfo.h"
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#ifndef VERSIONSTR
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#define VERSIONSTR "unknown"
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#endif
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using namespace Maxsi;
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namespace Sortix {
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namespace Info {
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const char* KernelInfo(const char* req)
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{
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if ( String::Compare(req, "name") == 0 ) { return "Sortix"; }
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if ( String::Compare(req, "version") == 0 ) { return VERSIONSTR; }
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if ( String::Compare(req, "builddate") == 0 ) { return __DATE__; }
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if ( String::Compare(req, "buildtime") == 0 ) { return __TIME__; }
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return NULL;
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}
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ssize_t SysKernelInfo(const char* req, char* resp, size_t resplen)
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{
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const char* str = KernelInfo(req);
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if ( !str ) { Error::Set(EINVAL); return -1; }
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size_t stringlen = String::Length(str);
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if ( resplen < stringlen + 1 )
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{
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Error::Set(ERANGE);
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return (ssize_t) stringlen;
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}
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String::Copy(resp, str);
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return 0;
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}
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void Init()
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{
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Syscall::Register(SYSCALL_KERNELINFO, (void*) SysKernelInfo);
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}
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} // namespace Info
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} // namespace Sortix
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