ignore_signals    397 src/core/busname.c                 ignore_signals(SIGPIPE, -1);
ignore_signals   1301 src/core/execute.c                 ignore_signals(SIGPIPE, -1);
ignore_signals   1421 src/core/main.c         ignore_signals(SIGNALS_IGNORE, -1);
ignore_signals   1463 src/core/socket.c                 ignore_signals(SIGPIPE, -1);
ignore_signals    808 src/login/logind.c         r = ignore_signals(SIGRTMIN + 1, -1);
ignore_signals    414 src/shared/util.h int ignore_signals(int sig, ...);