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| author | jh <jh@FreeBSD.org> | 2009-12-20 11:00:53 +0000 |
|---|---|---|
| committer | jh <jh@FreeBSD.org> | 2009-12-20 11:00:53 +0000 |
| commit | 05e68d005a67f1a5977aeeeea80c91c219a3ad09 (patch) | |
| tree | 2680180ea8126d97ac5fc545b4147fe67d5e5ace /usr.bin/truss/main.c | |
| parent | d51d2e56fc222c467689c165f203863b77393a6b (diff) | |
| download | FreeBSD-src-05e68d005a67f1a5977aeeeea80c91c219a3ad09.zip FreeBSD-src-05e68d005a67f1a5977aeeeea80c91c219a3ad09.tar.gz | |
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
Submitted by: Erik Lax
OK'ed by: delphij
Approved by: trasz (mentor)
Diffstat (limited to 'usr.bin/truss/main.c')
| -rw-r--r-- | usr.bin/truss/main.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/usr.bin/truss/main.c b/usr.bin/truss/main.c index d0dd073..586fcd6 100644 --- a/usr.bin/truss/main.c +++ b/usr.bin/truss/main.c @@ -239,6 +239,12 @@ 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 -- |
