mirror of
https://gitea.wildfiregames.com/0ad/0ad
synced 2026-06-16 05:13:58 -07:00
ae6d3bfc4e
This is more reliable than argv[0] which is effectively used via unix_ExecutablePathname. Also drop the fallback as it effectively is the same as the generic fallback and blocks making cxxtest optional. On FreeBSD the procfs is not mounted by default, so use a syscall instead. Refs: #8618 Signed-off-by: Ralph Sennhauser <ralph.sennhauser@gmail.com>
57 lines
1.8 KiB
C++
57 lines
1.8 KiB
C++
/* Copyright (C) 2026 Wildfire Games.
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include "precompiled.h"
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#include "lib/sysdep/sysdep.h"
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#include <climits>
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#if defined(__FreeBSD__)
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#include <sys/param.h>
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#include <sys/sysctl.h>
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#else
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#include <stdlib.h>
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#endif
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/**
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* Get the path to the executable
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*
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* In FreeBSD the procfs isn't available by default so use a system call instead.
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*/
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OsPath sys_ExecutablePathname()
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{
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char pathBuffer[PATH_MAX];
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#if defined(__FreeBSD__)
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int mib[] = { CTL_KERN, KERN_PROC, KERN_PROC_PATHNAME, -1 };
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size_t length = sizeof(pathBuffer);
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int error = sysctl(mib, 4, pathBuffer, &length, nullptr, 0);
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if (error < 0 || length <= 1)
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return {};
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#else
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if (realpath("/proc/curproc/file", pathBuffer) == nullptr)
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return {};
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#endif
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return pathBuffer;
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}
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