From afd2f355fb5524b1a7e53c28523d0581a50c2380 Mon Sep 17 00:00:00 2001 From: Mark Johnston Date: Tue, 5 Sep 2017 00:11:06 +0000 Subject: Use O_CLOEXEC when opening persistent handles in libdtrace. PR: 199810 Submitted by: jau@iki.fi MFC after: 1 week --- cddl/contrib/opensolaris/lib/libdtrace/common/dt_open.c | 9 +++------ 1 file changed, 3 insertions(+), 6 deletions(-) (limited to 'cddl/contrib/opensolaris/lib/libdtrace') diff --git a/cddl/contrib/opensolaris/lib/libdtrace/common/dt_open.c b/cddl/contrib/opensolaris/lib/libdtrace/common/dt_open.c index 3a8061ed94d0..92d3382296fc 100644 --- a/cddl/contrib/opensolaris/lib/libdtrace/common/dt_open.c +++ b/cddl/contrib/opensolaris/lib/libdtrace/common/dt_open.c @@ -963,7 +963,7 @@ dt_provmod_open(dt_provmod_t **provmod, dt_fdlist_t *dfp) (void) snprintf(path, sizeof (path), "/dev/dtrace/%s", p1); - if ((fd = open(path, O_RDONLY)) == -1) + if ((fd = open(path, O_RDONLY | O_CLOEXEC)) == -1) continue; /* failed to open driver; just skip it */ if (((prov = malloc(sizeof (dt_provmod_t))) == NULL) || @@ -1100,7 +1100,7 @@ dt_vopen(int version, int flags, int *errp, */ dt_provmod_open(&provmod, &df); - dtfd = open("/dev/dtrace/dtrace", O_RDWR); + dtfd = open("/dev/dtrace/dtrace", O_RDWR | O_CLOEXEC); err = errno; /* save errno from opening dtfd */ #if defined(__FreeBSD__) /* @@ -1116,7 +1116,7 @@ dt_vopen(int version, int flags, int *errp, #ifdef illumos ftfd = open("/dev/dtrace/provider/fasttrap", O_RDWR); #else - ftfd = open("/dev/dtrace/fasttrap", O_RDWR); + ftfd = open("/dev/dtrace/fasttrap", O_RDWR | O_CLOEXEC); #endif fterr = ftfd == -1 ? errno : 0; /* save errno from open ftfd */ @@ -1146,9 +1146,6 @@ dt_vopen(int version, int flags, int *errp, return (set_open_errno(dtp, errp, err)); } - (void) fcntl(dtfd, F_SETFD, FD_CLOEXEC); - (void) fcntl(ftfd, F_SETFD, FD_CLOEXEC); - alloc: if ((dtp = malloc(sizeof (dtrace_hdl_t))) == NULL) { dt_provmod_destroy(&provmod); -- cgit v1.2.3