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Merge "libutil: Support getSelfExe on FreeBSD" into main

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Artemis Tosini 2024-07-25 23:10:30 +00:00 committed by Gerrit Code Review
parent c4c7cb7613 3b96b51cf4
commit 60a48311e8
1 changed files with 23 additions and 0 deletions
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23
src/libutil/current-process.cc
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@ -15,6 +15,11 @@
# include <sys/resource.h>
#endif
#if __FreeBSD__
# include <sys/param.h>
# include <sys/sysctl.h>
#endif
#include <sys/mount.h>
#include <cgroup.hh>
@ -102,6 +107,24 @@ std::optional<Path> getSelfExe()
return buf;
else
return std::nullopt;
#elif __FreeBSD__
int sysctlName[] = {
CTL_KERN,
KERN_PROC,
KERN_PROC_PATHNAME,
-1,
};
size_t pathLen = 0;
if (sysctl(sysctlName, sizeof(sysctlName) / sizeof(sysctlName[0]), nullptr, &pathLen, nullptr, 0) < 0) {
return std::nullopt;
}
std::vector<char> path(pathLen);
if (sysctl(sysctlName, sizeof(sysctlName) / sizeof(sysctlName[0]), path.data(), &pathLen, nullptr, 0) < 0) {
return std::nullopt;
}
return Path(path.begin(), path.end());
#else
return std::nullopt;
#endif