_exit(EXIT_SUCCESS);
}
-void pager_open(void) {
+bool pager_open(void) {
int fd[2];
const char *pager;
pid_t parent_pid;
if (pager_pid > 0)
- return;
+ return false;
if ((pager = getenv("SYSTEMD_PAGER")) || (pager = getenv("PAGER")))
if (!*pager || streq(pager, "cat"))
- return;
+ return false;
if (isatty(STDOUT_FILENO) <= 0)
- return;
+ return false;
/* Determine and cache number of columns before we spawn the
* pager so that we get the value from the actual tty */
if (pipe(fd) < 0) {
log_error("Failed to create pager pipe: %m");
- return;
+ return false;
}
parent_pid = getpid();
if (pager_pid < 0) {
log_error("Failed to fork pager: %m");
close_pipe(fd);
- return;
+ return false;
}
/* In the child start the pager */
}
/* Return in the parent */
- if (dup2(fd[1], STDOUT_FILENO) < 0)
+ if (dup2(fd[1], STDOUT_FILENO) < 0) {
log_error("Failed to duplicate pager pipe: %m");
+ return false;
+ }
close_pipe(fd);
+ return true;
}
void pager_close(void) {