6bbba8f22a
The ControlMaster feature for multiplexing used hard links, which does not work on Android starting in Android 6.0. Replace this with a non-atomic check-then-rename for now. Fixes #91.
35 lines
1.1 KiB
Diff
35 lines
1.1 KiB
Diff
diff -u -r ../openssh-7.1p1/mux.c ./mux.c
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--- ../openssh-7.1p1/mux.c 2015-08-21 00:49:03.000000000 -0400
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+++ ./mux.c 2015-12-17 19:20:36.368902909 -0500
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@@ -1295,6 +1295,22 @@
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}
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/* Now atomically "move" the mux socket into position */
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+#ifdef __ANDROID__
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+ /* Android does not support hard links, so use a non-atomic
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+ check-then-rename for now. */
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+ if (access(orig_control_path, F_OK) == 0) {
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+ error("ControlSocket %s already exists, disabling multiplexing",
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+ orig_control_path);
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+ unlink(options.control_path);
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+ goto disable_mux_master;
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+ } else {
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+ if (rename(options.control_path, orig_control_path) == -1) {
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+ fatal("%s: link mux listener %s => %s: %s", __func__,
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+ options.control_path, orig_control_path,
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+ strerror(errno));
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+ }
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+ }
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+#else
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if (link(options.control_path, orig_control_path) != 0) {
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if (errno != EEXIST) {
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fatal("%s: link mux listener %s => %s: %s", __func__,
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@@ -1307,6 +1324,7 @@
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goto disable_mux_master;
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}
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unlink(options.control_path);
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+#endif
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free(options.control_path);
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options.control_path = orig_control_path;
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