Merge pull request #3641 from 0xAX/unset-cloexec-for-stdfs

basic/fd-util: introduce stdio_unset_cloexec() function
This commit is contained in:
Lennart Poettering
2016-07-02 15:22:14 -07:00
committed by GitHub
6 changed files with 12 additions and 15 deletions
+6
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@@ -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;
+1
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@@ -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);
+1 -3
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@@ -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;
}
+2 -6
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@@ -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");
+1 -3
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@@ -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);
+1 -3
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@@ -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);