Author: jh
Date: Mon Oct 11 13:31:09 2010
New Revision: 213690
URL: http://svn.freebsd.org/changeset/base/213690
Log:
MFC r200752:
Avoid sharing the file descriptor of the output file with traced
processes by setting the FD_CLOEXEC flag for the output file.
PR: bin/140493
Modified:
stable/7/usr.bin/truss/main.c
Directory Properties:
stable/7/usr.bin/truss/ (props changed)
Modified: stable/7/usr.bin/truss/main.c
==============================================================================
--- stable/7/usr.bin/truss/main.c Mon Oct 11 12:57:41 2010
(r213689)
+++ stable/7/usr.bin/truss/main.c Mon Oct 11 13:31:09 2010
(r213690)
@@ -231,6 +231,12 @@ main(int ac, char **av)
if ((trussinfo->outfile = fopen(fname, "w")) == NULL)
errx(1, "cannot open %s", fname);
}
+ /*
+ * Set FD_CLOEXEC, so that the output file is not shared with
+ * the traced process.
+ */
+ if (fcntl(fileno(trussinfo->outfile), F_SETFD, FD_CLOEXEC) == -1)
+ warn("fcntl()");
/*
* If truss starts the process itself, it will ignore some signals --
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