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util.pposix: Prevent FDs 0, 1 and 2 from being assigned to connections
authorKim Alvefur <zash@zash.se>
Sat, 10 Nov 2012 23:41:53 +0100
changeset 5176 7d0a8b255a37
parent 5175 fabaed7418a6
child 5177 add9ad38208e
util.pposix: Prevent FDs 0, 1 and 2 from being assigned to connections
util-src/pposix.c file | annotate | diff | comparison | revisions 
--- a/util-src/pposix.c	Sat Nov 10 23:39:22 2012 +0100
+++ b/util-src/pposix.c	Sat Nov 10 23:41:53 2012 +0100
@@ -89,6 +89,10 @@
 	close(0);
 	close(1);
 	close(2);
+	/* Make sure accidental use of FDs 0, 1, 2 don't cause weirdness */
+	open("/dev/null", O_RDONLY);
+	open("/dev/null", O_WRONLY);
+	open("/dev/null", O_WRONLY);
 
 	/* Final fork, use it wisely */
 	if(fork())
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