3 files changed, 14 insertions, 0 deletions
diff --git a/src/pies.c b/src/pies.c
index e1a7356..b92b7a3 100644
--- a/src/pies.c
+++ b/src/pies.c
@@ -904,6 +904,7 @@ str_to_cf (const char *string, int *flags)
     { "sockenv", CF_SOCKENV },
     { "resolve", CF_RESOLVE },
     { "siggroup", CF_SIGGROUP },
+    { "nullinput", CF_NULLINPUT },
     { NULL }
   };
 
diff --git a/src/pies.h b/src/pies.h
index 73f6d18..b627b47 100644
--- a/src/pies.h
+++ b/src/pies.h
@@ -202,6 +202,8 @@ enum pies_comp_mode
 #define CF_RESOLVE     0x080 /* Resolve IP addresses */
 #define CF_SIGGROUP    0x100 /* Send signals to the process group */
 
+#define CF_NULLINPUT   0x200 /* Provide null input stream */
+
 #define ISCF_TCPMUX(f) ((f) & (CF_TCPMUX | CF_TCPMUXPLUS))
 
 struct component
diff --git a/src/progman.c b/src/progman.c
index e666535..1455f67 100644
--- a/src/progman.c
+++ b/src/progman.c
@@ -1207,6 +1207,17 @@ prog_start (struct prog *prog)
 	    }
 	  else
 	    {
+	      if (prog->v.p.comp->flags & CF_NULLINPUT)
+		{
+		  close(0);
+		  if (open("/dev/null", O_RDONLY) != 0)
+		    {
+		      logmsg (LOG_CRIT, "can't open /dev/null: %s",
+			      strerror(errno));
+		      _exit(127);
+		    }
+		}
+
 	      if (redir[RETR_OUT] == -1)
 		{
 		  close (1);