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-rw-r--r--src/shared/meson.build2
-rw-r--r--src/shared/pager.c208
-rw-r--r--src/shared/pager.h14
3 files changed, 0 insertions, 224 deletions
diff --git a/src/shared/meson.build b/src/shared/meson.build
index 695bb063f..760f9a123 100644
--- a/src/shared/meson.build
+++ b/src/shared/meson.build
@@ -118,8 +118,6 @@ shared_sources = '''
nsflags.h
output-mode.c
output-mode.h
- pager.c
- pager.h
sleep-config.c
sleep-config.h
spawn-polkit-agent.c
diff --git a/src/shared/pager.c b/src/shared/pager.c
deleted file mode 100644
index c0ad0bb3b..000000000
--- a/src/shared/pager.c
+++ /dev/null
@@ -1,208 +0,0 @@
-/* SPDX-License-Identifier: LGPL-2.1+ */
-
-#include <errno.h>
-#include <signal.h>
-#include <stddef.h>
-#include <stdint.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/prctl.h>
-#include <unistd.h>
-
-#include "copy.h"
-#include "fd-util.h"
-#include "locale-util.h"
-#include "log.h"
-#include "macro.h"
-#include "pager.h"
-#include "process-util.h"
-#include "signal-util.h"
-#include "string-util.h"
-#include "strv.h"
-#include "terminal-util.h"
-
-static pid_t pager_pid = 0;
-
-static int stored_stdout = -1;
-static int stored_stderr = -1;
-static bool stdout_redirected = false;
-static bool stderr_redirected = false;
-
-_noreturn_ static void pager_fallback(void) {
- int r;
-
- r = copy_bytes(STDIN_FILENO, STDOUT_FILENO, (uint64_t) -1, 0);
- if (r < 0) {
- log_error_errno(r, "Internal pager failed: %m");
- _exit(EXIT_FAILURE);
- }
-
- _exit(EXIT_SUCCESS);
-}
-
-int pager_open(bool no_pager, bool jump_to_end) {
- _cleanup_close_pair_ int fd[2] = { -1, -1 };
- const char *pager;
- int r;
-
- if (no_pager)
- return 0;
-
- if (pager_pid > 0)
- return 1;
-
- if (terminal_is_dumb())
- return 0;
-
- if (!is_main_thread())
- return -EPERM;
-
- pager = getenv("SYSTEMD_PAGER");
- if (!pager)
- pager = getenv("PAGER");
-
- /* If the pager is explicitly turned off, honour it */
- if (pager && STR_IN_SET(pager, "", "cat"))
- return 0;
-
- /* Determine and cache number of columns/lines before we spawn the pager so that we get the value from the
- * actual tty */
- (void) columns();
- (void) lines();
-
- if (pipe2(fd, O_CLOEXEC) < 0)
- return log_error_errno(errno, "Failed to create pager pipe: %m");
-
- r = safe_fork("(pager)", FORK_RESET_SIGNALS|FORK_DEATHSIG|FORK_LOG, &pager_pid);
- if (r < 0)
- return r;
- if (r == 0) {
- const char* less_opts, *less_charset;
-
- /* In the child start the pager */
-
- (void) dup2(fd[0], STDIN_FILENO);
- safe_close_pair(fd);
-
- /* Initialize a good set of less options */
- less_opts = getenv("SYSTEMD_LESS");
- if (!less_opts)
- less_opts = "FRSXMK";
- if (jump_to_end)
- less_opts = strjoina(less_opts, " +G");
- if (setenv("LESS", less_opts, 1) < 0)
- _exit(EXIT_FAILURE);
-
- /* Initialize a good charset for less. This is
- * particularly important if we output UTF-8
- * characters. */
- less_charset = getenv("SYSTEMD_LESSCHARSET");
- if (!less_charset && is_locale_utf8())
- less_charset = "utf-8";
- if (less_charset &&
- setenv("LESSCHARSET", less_charset, 1) < 0)
- _exit(EXIT_FAILURE);
-
- if (pager) {
- execlp(pager, pager, NULL);
- execl("/bin/sh", "sh", "-c", pager, NULL);
- }
-
- /* Debian's alternatives command for pagers is
- * called 'pager'. Note that we do not call
- * sensible-pagers here, since that is just a
- * shell script that implements a logic that
- * is similar to this one anyway, but is
- * Debian-specific. */
- execlp("pager", "pager", NULL);
-
- execlp("less", "less", NULL);
- execlp("more", "more", NULL);
-
- pager_fallback();
- /* not reached */
- }
-
- /* Return in the parent */
- stored_stdout = fcntl(STDOUT_FILENO, F_DUPFD_CLOEXEC, 3);
- if (dup2(fd[1], STDOUT_FILENO) < 0) {
- stored_stdout = safe_close(stored_stdout);
- return log_error_errno(errno, "Failed to duplicate pager pipe: %m");
- }
- stdout_redirected = true;
-
- stored_stderr = fcntl(STDERR_FILENO, F_DUPFD_CLOEXEC, 3);
- if (dup2(fd[1], STDERR_FILENO) < 0) {
- stored_stderr = safe_close(stored_stderr);
- return log_error_errno(errno, "Failed to duplicate pager pipe: %m");
- }
- stderr_redirected = true;
-
- return 1;
-}
-
-void pager_close(void) {
-
- if (pager_pid <= 0)
- return;
-
- /* Inform pager that we are done */
- (void) fflush(stdout);
- if (stdout_redirected)
- if (stored_stdout < 0 || dup2(stored_stdout, STDOUT_FILENO) < 0)
- (void) close(STDOUT_FILENO);
- stored_stdout = safe_close(stored_stdout);
- (void) fflush(stderr);
- if (stderr_redirected)
- if (stored_stderr < 0 || dup2(stored_stderr, STDERR_FILENO) < 0)
- (void) close(STDERR_FILENO);
- stored_stderr = safe_close(stored_stderr);
- stdout_redirected = stderr_redirected = false;
-
- (void) kill(pager_pid, SIGCONT);
- (void) wait_for_terminate(pager_pid, NULL);
- pager_pid = 0;
-}
-
-bool pager_have(void) {
- return pager_pid > 0;
-}
-
-#if 0 /// UNNEEDED by elogind
-int show_man_page(const char *desc, bool null_stdio) {
- const char *args[4] = { "man", NULL, NULL, NULL };
- char *e = NULL;
- pid_t pid;
- size_t k;
- int r;
-
- k = strlen(desc);
-
- if (desc[k-1] == ')')
- e = strrchr(desc, '(');
-
- if (e) {
- char *page = NULL, *section = NULL;
-
- page = strndupa(desc, e - desc);
- section = strndupa(e + 1, desc + k - e - 2);
-
- args[1] = section;
- args[2] = page;
- } else
- args[1] = desc;
-
- r = safe_fork("(man)", FORK_RESET_SIGNALS|FORK_DEATHSIG|(null_stdio ? FORK_NULL_STDIO : 0)|FORK_LOG, &pid);
- if (r < 0)
- return r;
- if (r == 0) {
- /* Child */
- execvp(args[0], (char**) args);
- log_error_errno(errno, "Failed to execute man: %m");
- _exit(EXIT_FAILURE);
- }
-
- return wait_for_terminate_and_check(NULL, pid, 0);
-}
-#endif // 0
diff --git a/src/shared/pager.h b/src/shared/pager.h
deleted file mode 100644
index edeae3a11..000000000
--- a/src/shared/pager.h
+++ /dev/null
@@ -1,14 +0,0 @@
-/* SPDX-License-Identifier: LGPL-2.1+ */
-#pragma once
-
-#include <stdbool.h>
-
-#include "macro.h"
-
-int pager_open(bool no_pager, bool jump_to_end);
-void pager_close(void);
-bool pager_have(void) _pure_;
-
-#if 0 /// UNNEEDED by elogind
-int show_man_page(const char *page, bool null_stdio);
-#endif // 0
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