nix-daemon: Show name of connecting user
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77c972c898
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@ -17,6 +17,7 @@
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#include <sys/un.h>
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#include <fcntl.h>
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#include <errno.h>
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#include <pwd.h>
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using namespace nix;
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@ -855,23 +856,23 @@ static void daemonLoop()
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closeOnExec(remote);
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bool trusted = false;
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pid_t clientPid = -1;
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#if defined(SO_PEERCRED)
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/* Get the identity of the caller, if possible. */
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uid_t clientUid = -1;
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ucred cred;
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socklen_t credLen = sizeof(cred);
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if (getsockopt(remote, SOL_SOCKET, SO_PEERCRED, &cred, &credLen) == -1)
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throw SysError("getting peer credentials");
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clientPid = cred.pid;
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clientUid = cred.uid;
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if (clientUid == 0) trusted = true;
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printMsg(lvlInfo, format("accepted connection from pid %1%, uid %2%") % clientPid % clientUid);
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struct passwd * pw = getpwuid(cred.uid);
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string user = pw ? pw->pw_name : int2String(cred.uid);
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if (cred.uid == 0) trusted = true;
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printMsg(lvlInfo, format("accepted connection from pid %1%, user %2%") % clientPid % user);
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#endif
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/* Fork a child to handle the connection. */
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