summaryrefslogtreecommitdiff
path: root/src/machine
diff options
context:
space:
mode:
authorLennart Poettering <lennart@poettering.net>2014-03-18 19:22:43 +0100
committerLennart Poettering <lennart@poettering.net>2014-03-18 19:31:34 +0100
commit03e334a1c7dc8c20c38902aa039440763acc9b17 (patch)
treebc30b522de8ef9c251bf3ff2fe2d52c92dd8b1ea /src/machine
parent9459781ee66eb57709c8b8701701365ba60a9f1c (diff)
util: replace close_nointr_nofail() by a more useful safe_close()
safe_close() automatically becomes a NOP when a negative fd is passed, and returns -1 unconditionally. This makes it easy to write lines like this: fd = safe_close(fd); Which will close an fd if it is open, and reset the fd variable correctly. By making use of this new scheme we can drop a > 200 lines of code that was required to test for non-negative fds or to reset the closed fd variable afterwards.
Diffstat (limited to 'src/machine')
-rw-r--r--src/machine/machinectl.c6
1 files changed, 2 insertions, 4 deletions
diff --git a/src/machine/machinectl.c b/src/machine/machinectl.c
index 2183d5c397..d812ef2600 100644
--- a/src/machine/machinectl.c
+++ b/src/machine/machinectl.c
@@ -439,8 +439,7 @@ static int openpt_in_namespace(pid_t pid, int flags) {
return -errno;
if (child == 0) {
- close_nointr_nofail(pair[0]);
- pair[0] = -1;
+ pair[0] = safe_close(pair[0]);
r = namespace_enter(pidnsfd, mntnsfd, rootfd);
if (r < 0)
@@ -464,8 +463,7 @@ static int openpt_in_namespace(pid_t pid, int flags) {
_exit(EXIT_SUCCESS);
}
- close_nointr_nofail(pair[1]);
- pair[1] = -1;
+ pair[1] = safe_close(pair[1]);
r = wait_for_terminate(child, &si);
if (r < 0 || si.si_code != CLD_EXITED || si.si_status != EXIT_SUCCESS) {