0c69794138
These lines are generally out-of-date, incomplete and unnecessary. With SPDX and git repository much more accurate and fine grained information about licensing and authorship is available, hence let's drop the per-file copyright notice. Of course, removing copyright lines of others is problematic, hence this commit only removes my own lines and leaves all others untouched. It might be nicer if sooner or later those could go away too, making git the only and accurate source of authorship information.
86 lines
2 KiB
C
86 lines
2 KiB
C
/* SPDX-License-Identifier: LGPL-2.1+ */
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#include <errno.h>
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#include <poll.h>
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#include <signal.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include "fd-util.h"
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#include "io-util.h"
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#include "log.h"
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#include "macro.h"
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#include "process-util.h"
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#include "spawn-polkit-agent.h"
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#include "stdio-util.h"
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#include "time-util.h"
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#include "util.h"
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#if ENABLE_POLKIT
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static pid_t agent_pid = 0;
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int polkit_agent_open(void) {
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char notify_fd[DECIMAL_STR_MAX(int) + 1];
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int pipe_fd[2], r;
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if (agent_pid > 0)
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return 0;
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/* Clients that run as root don't need to activate/query polkit */
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if (geteuid() == 0)
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return 0;
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/* We check STDIN here, not STDOUT, since this is about input, not output */
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if (!isatty(STDIN_FILENO))
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return 0;
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if (!is_main_thread())
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return -EPERM;
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if (pipe2(pipe_fd, 0) < 0)
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return -errno;
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xsprintf(notify_fd, "%i", pipe_fd[1]);
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r = fork_agent("(polkit-agent)",
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&pipe_fd[1], 1,
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&agent_pid,
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POLKIT_AGENT_BINARY_PATH,
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POLKIT_AGENT_BINARY_PATH, "--notify-fd", notify_fd, "--fallback", NULL);
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/* Close the writing side, because that's the one for the agent */
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safe_close(pipe_fd[1]);
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if (r < 0)
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log_error_errno(r, "Failed to fork TTY ask password agent: %m");
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else
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/* Wait until the agent closes the fd */
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fd_wait_for_event(pipe_fd[0], POLLHUP, USEC_INFINITY);
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safe_close(pipe_fd[0]);
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return r;
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}
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void polkit_agent_close(void) {
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if (agent_pid <= 0)
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return;
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/* Inform agent that we are done */
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(void) kill_and_sigcont(agent_pid, SIGTERM);
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(void) wait_for_terminate(agent_pid, NULL);
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agent_pid = 0;
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}
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#else
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int polkit_agent_open(void) {
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return 0;
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}
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void polkit_agent_close(void) {
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}
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#endif
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