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authorEelco Dolstra <edolstra@gmail.com>2017-08-11T11·55+0200
committerEelco Dolstra <edolstra@gmail.com>2017-08-16T18·55+0200
commite4bd42f98f7da0ac49cdea579d1e43be64c0621f (patch)
tree6632534b273cc8454788f120c1b6d3279cebe33f /src/libstore/ssh.cc
parent82c4b37c6fb8f32012b6922436ded3c590a69852 (diff)
Disallow SSH host names starting with a dash
Diffstat (limited to 'src/libstore/ssh.cc')
-rw-r--r--src/libstore/ssh.cc11
1 files changed, 11 insertions, 0 deletions
diff --git a/src/libstore/ssh.cc b/src/libstore/ssh.cc
index 776ffdb834..7ff7a9bffc 100644
--- a/src/libstore/ssh.cc
+++ b/src/libstore/ssh.cc
@@ -2,6 +2,17 @@
 
 namespace nix {
 
+SSHMaster::SSHMaster(const std::string & host, const std::string & keyFile, bool useMaster, bool compress, int logFD)
+    : host(host)
+    , keyFile(keyFile)
+    , useMaster(useMaster)
+    , compress(compress)
+    , logFD(logFD)
+{
+    if (host == "" || hasPrefix(host, "-"))
+        throw Error("invalid SSH host name '%s'", host);
+}
+
 void SSHMaster::addCommonSSHOpts(Strings & args)
 {
     for (auto & i : tokenizeString<Strings>(getEnv("NIX_SSHOPTS")))