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authorLennart Poettering <lennart@poettering.net>2016-07-02 15:22:14 -0700
committerGitHub <noreply@github.com>2016-07-02 15:22:14 -0700
commitb1e67dfe31c6911820eac753f6461e1c9a00f26c (patch)
tree253c67693fe1b4897d92b90b994d3ae60c0ddecf /src
parente71af7931616601159f50c9029efc07ec347d73b (diff)
parent913f38e4402ad19529b13fdb56db77eaa2b9f30a (diff)
Merge pull request #3641 from 0xAX/unset-cloexec-for-stdfs
basic/fd-util: introduce stdio_unset_cloexec() function
Diffstat (limited to 'src')
-rw-r--r--src/basic/fd-util.c6
-rw-r--r--src/basic/fd-util.h1
-rw-r--r--src/basic/terminal-util.c4
-rw-r--r--src/import/import-common.c8
-rw-r--r--src/import/importd.c4
-rw-r--r--src/import/pull-common.c4
6 files changed, 12 insertions, 15 deletions
diff --git a/src/basic/fd-util.c b/src/basic/fd-util.c
index 8b466cff15..5c820332a5 100644
--- a/src/basic/fd-util.c
+++ b/src/basic/fd-util.c
@@ -186,6 +186,12 @@ int fd_cloexec(int fd, bool cloexec) {
return 0;
}
+void stdio_unset_cloexec(void) {
+ fd_cloexec(STDIN_FILENO, false);
+ fd_cloexec(STDOUT_FILENO, false);
+ fd_cloexec(STDERR_FILENO, false);
+}
+
_pure_ static bool fd_in_set(int fd, const int fdset[], unsigned n_fdset) {
unsigned i;
diff --git a/src/basic/fd-util.h b/src/basic/fd-util.h
index b86e41698a..34b98d4aec 100644
--- a/src/basic/fd-util.h
+++ b/src/basic/fd-util.h
@@ -63,6 +63,7 @@ DEFINE_TRIVIAL_CLEANUP_FUNC(DIR*, closedir);
int fd_nonblock(int fd, bool nonblock);
int fd_cloexec(int fd, bool cloexec);
+void stdio_unset_cloexec(void);
int close_all_fds(const int except[], unsigned n_except);
diff --git a/src/basic/terminal-util.c b/src/basic/terminal-util.c
index d8cca55378..df56d85317 100644
--- a/src/basic/terminal-util.c
+++ b/src/basic/terminal-util.c
@@ -888,9 +888,7 @@ int make_stdio(int fd) {
/* Explicitly unset O_CLOEXEC, since if fd was < 3, then
* dup2() was a NOP and the bit hence possibly set. */
- fd_cloexec(STDIN_FILENO, false);
- fd_cloexec(STDOUT_FILENO, false);
- fd_cloexec(STDERR_FILENO, false);
+ stdio_unset_cloexec();
return 0;
}
diff --git a/src/import/import-common.c b/src/import/import-common.c
index 287a3382a1..81209cdaf6 100644
--- a/src/import/import-common.c
+++ b/src/import/import-common.c
@@ -125,9 +125,7 @@ int import_fork_tar_x(const char *path, pid_t *ret) {
if (null_fd != STDOUT_FILENO)
null_fd = safe_close(null_fd);
- fd_cloexec(STDIN_FILENO, false);
- fd_cloexec(STDOUT_FILENO, false);
- fd_cloexec(STDERR_FILENO, false);
+ stdio_unset_cloexec();
if (unshare(CLONE_NEWNET) < 0)
log_error_errno(errno, "Failed to lock tar into network namespace, ignoring: %m");
@@ -199,9 +197,7 @@ int import_fork_tar_c(const char *path, pid_t *ret) {
if (null_fd != STDIN_FILENO)
null_fd = safe_close(null_fd);
- fd_cloexec(STDIN_FILENO, false);
- fd_cloexec(STDOUT_FILENO, false);
- fd_cloexec(STDERR_FILENO, false);
+ stdio_unset_cloexec();
if (unshare(CLONE_NEWNET) < 0)
log_error_errno(errno, "Failed to lock tar into network namespace, ignoring: %m");
diff --git a/src/import/importd.c b/src/import/importd.c
index 956a82945c..28b4302cb3 100644
--- a/src/import/importd.c
+++ b/src/import/importd.c
@@ -448,9 +448,7 @@ static int transfer_start(Transfer *t) {
safe_close(null_fd);
}
- fd_cloexec(STDIN_FILENO, false);
- fd_cloexec(STDOUT_FILENO, false);
- fd_cloexec(STDERR_FILENO, false);
+ stdio_unset_cloexec();
setenv("SYSTEMD_LOG_TARGET", "console-prefixed", 1);
setenv("NOTIFY_SOCKET", "/run/systemd/import/notify", 1);
diff --git a/src/import/pull-common.c b/src/import/pull-common.c
index dc4e4667a9..2ae2a4174c 100644
--- a/src/import/pull-common.c
+++ b/src/import/pull-common.c
@@ -506,9 +506,7 @@ int pull_verify(PullJob *main_job,
cmd[k++] = "-";
cmd[k++] = NULL;
- fd_cloexec(STDIN_FILENO, false);
- fd_cloexec(STDOUT_FILENO, false);
- fd_cloexec(STDERR_FILENO, false);
+ stdio_unset_cloexec();
execvp("gpg2", (char * const *) cmd);
execvp("gpg", (char * const *) cmd);