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// roughly based on the code for Firefox class BinaryPath
// https://searchfox.org/mozilla-central/source/xpcom/build/BinaryPath.h#185
#include <iostream>
#include <sys/types.h>
#include <sys/sysctl.h>
#include <limits.h>
#include <string>
using std::cerr;
using std::cout;
using std::string;
int main(int argc, char **argv)
{
char aResult[PATH_MAX];
int mib[4];
mib[0] = CTL_KERN;
mib[1] = KERN_PROC;
mib[2] = KERN_PROC_PATHNAME;
mib[3] = -1;
size_t len = PATH_MAX;
if (sysctl(mib, 4, aResult, &len, nullptr, 0) < 0) {
cerr << "sysctl failed\n";
return -1;
}
if (string(aResult) == argv[1]) {
cout << "OK\n";
} else {
cerr << "Not OK aResult " << aResult << " argv[1] " << argv[1] << '\n';
}
}
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