#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;
noreturn static void pager_fallback(void) {
int r;
- r = copy_bytes(STDIN_FILENO, STDOUT_FILENO, (uint64_t) -1, false);
+ 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);
if (pager_pid > 0)
return 1;
- if (!on_tty())
+ if (terminal_is_dumb())
return 0;
pager = getenv("SYSTEMD_PAGER");
pager = getenv("PAGER");
/* If the pager is explicitly turned off, honour it */
- if (pager && (pager[0] == 0 || streq(pager, "cat")))
+ if (pager && STR_IN_SET(pager, "", "cat"))
return 0;
/* Determine and cache number of columns before we spawn the
less_opts = "FRSXMK";
if (jump_to_end)
less_opts = strjoina(less_opts, " +G");
- setenv("LESS", less_opts, 1);
+ 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
less_charset = getenv("SYSTEMD_LESSCHARSET");
if (!less_charset && is_locale_utf8())
less_charset = "utf-8";
- if (less_charset)
- setenv("LESSCHARSET", less_charset, 1);
+ if (less_charset &&
+ setenv("LESSCHARSET", less_charset, 1) < 0)
+ _exit(EXIT_FAILURE);
/* Make sure the pager goes away when the parent dies */
if (prctl(PR_SET_PDEATHSIG, SIGTERM) < 0)
return;
/* Inform pager that we are done */
- stdout = safe_fclose(stdout);
- stderr = safe_fclose(stderr);
(void) kill(pager_pid, SIGCONT);
(void) wait_for_terminate(pager_pid, NULL);