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createUnixDomainSocket(): Fix off-by-one error in copying the socket path

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Reported by Kane York.

(cherry picked from commit 2292814049)
This commit is contained in:
Eelco Dolstra 2020-07-24 11:19:17 +02:00
parent c728d375de
commit 8b04d28a5b
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1 changed files with 1 additions and 1 deletions
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2
src/nix-daemon/nix-daemon.cc
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@ -967,7 +967,7 @@ static void daemonLoop(char * * argv)
struct sockaddr_un addr;
addr.sun_family = AF_UNIX;
if (socketPathRel.size() >= sizeof(addr.sun_path))
if (socketPathRel.size() + 1 >= sizeof(addr.sun_path))
throw Error(format("socket path '%1%' is too long") % socketPathRel);
strcpy(addr.sun_path, socketPathRel.c_str());