Use Solaris setpflags(__PROC_PROTECT, ...).

Where possible, use Solaris setpflags to disable process tracing on
ssh-agent and sftp-server.  bz#2584, based on a patch from huieying.lee
at oracle.com, ok djm.

1 files changed, 8 insertions, 0 deletions

diff --git a/platform.c b/platform.c
index e3722e4ae..c68bb09c1 100644
--- a/platform.c
+++ b/platform.c
@@ -22,6 +22,9 @@
 #if defined(HAVE_SYS_PRCTL_H)
 #include <sys/prctl.h>  /* For prctl() and PR_SET_DUMPABLE */
 #endif
+#ifdef HAVE_PRIV_H
+#include <priv.h> /* For setpflags() and __PROC_PROTECT  */
+#endif
 
 #include <stdarg.h>
 #include <unistd.h>
@@ -229,4 +232,9 @@ platform_disable_tracing(int strict)
         if (prctl(PR_SET_DUMPABLE, 0) != 0 && strict)
                 fatal("unable to make the process undumpable");
 #endif
+#if defined(HAVE_SETPFLAGS) && defined(__PROC_PROTECT)
+        /* On Solaris, we should make this process untraceable */
+        if (setpflags(__PROC_PROTECT, 1) != 0 && strict)
+                fatal("unable to make the process untraceable");
+#endif
 }