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| author | Cristian RodrÃguez | 2015-04-10 20:57:58 +0200 |
|---|---|---|
| committer | Karel Zak | 2015-04-14 11:38:02 +0200 |
| commit | d1f9c0969eb24d0a5ec5d862bd41b1bd5f3103f0 (patch) | |
| tree | b29132d2450d36276c15d28a20d700e041e6db76 /lib/sysfs.c | |
| parent | tests: make libmount python context tests sensitive to USE_LIBMOUNT_FORCE_MOU... (diff) | |
| download | kernel-qcow2-util-linux-d1f9c0969eb24d0a5ec5d862bd41b1bd5f3103f0.tar.gz kernel-qcow2-util-linux-d1f9c0969eb24d0a5ec5d862bd41b1bd5f3103f0.tar.xz kernel-qcow2-util-linux-d1f9c0969eb24d0a5ec5d862bd41b1bd5f3103f0.zip | |
lib/sysfs.c: use fcntl(..F_DUPFD_CLOEXEC) instead of dup(2)
"The two descriptors do not share file descriptor flags (the
close-on-exec flag). The close-on-exec flag for the duplicate descriptor is off"
Diffstat (limited to 'lib/sysfs.c')
| -rw-r--r-- | lib/sysfs.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/sysfs.c b/lib/sysfs.c index ac3559619..1b2019112 100644 --- a/lib/sysfs.c +++ b/lib/sysfs.c @@ -246,7 +246,7 @@ DIR *sysfs_opendir(struct sysfs_cxt *cxt, const char *attr) * -- we cannot use cxt->sysfs_fd directly, because closedir() * will close this our persistent file descriptor. */ - fd = dup(cxt->dir_fd); + fd = fcntl(cxt->dir_fd, F_DUPFD_CLOEXEC, STDERR_FILENO + 1); if (fd < 0) return NULL; |