X-Git-Url: https://git.tcpdump.org/tcpdump/blobdiff_plain/a6e78f896b25cb7204e9f5739eab48add4dad559..705725c2475acfc5ee17c9bfdd96a64185959461:/tcpdump.c

diff --git a/tcpdump.c b/tcpdump.c
index b11fc60f..7cdbd8af 100644
--- a/tcpdump.c
+++ b/tcpdump.c
@@ -2572,6 +2572,9 @@ DIAG_ON_ASSIGN_ENUM
 #else
 	cansandbox = (cansandbox && ndo->ndo_nflag);
 #endif /* HAVE_CASPER */
+	cansandbox = (cansandbox && (pcap_fileno(pd) != -1 ||
+	    RFileName != NULL));
+
 	if (cansandbox && cap_enter() < 0 && errno != ENOSYS)
 		error("unable to enter the capability mode");
 #endif	/* HAVE_CAPSICUM */