Initial public release: fresh history

Makefile

@@ -0,0 +1,124 @@
+# Makefile for fblogin (clean, non-root build; root needed only for install)
+
+# ---- config ----
+TARGET   := fblogin
+SRC_DIR  := src
+OBJ_DIR  := obj
+INC_DIR  := include
+PREFIX   := /usr/local
+BINDIR   := $(PREFIX)/bin
+
+# Banner (issue) file used by pam_issue.so
+ISSUE_DIR  ?= system/issue
+ISSUE_FILE ?= $(ISSUE_DIR)/issue.fblogin
+ISSUE_DEST ?= /etc/issue.fblogin
+
+# Compiler/Linker
+CC       := gcc
+CPPFLAGS := -I$(INC_DIR) -D_GNU_SOURCE -MMD -MP
+CFLAGS   := -Wall -Wextra -Wpedantic -O2
+LDFLAGS  := -Wl,--as-needed
+LDLIBS   := -lpam -lpam_misc
+
+# Optional libsystemd (sd-login diagnostics). Auto-detect.
+SYSTEMD_CFLAGS := $(shell pkg-config --cflags libsystemd 2>/dev/null)
+SYSTEMD_LIBS   := $(shell pkg-config --libs   libsystemd 2>/dev/null)
+ifneq ($(strip $(SYSTEMD_LIBS)),)
+CPPFLAGS += $(SYSTEMD_CFLAGS) -DHAVE_SYSTEMD_LOGIN=1
+LDLIBS   += $(SYSTEMD_LIBS)
+endif
+
+# Sources/Objects
+SRCS     := $(wildcard $(SRC_DIR)/*.c)
+OBJS     := $(patsubst $(SRC_DIR)/%.c,$(OBJ_DIR)/%.o,$(SRCS))
+DEPS     := $(OBJS:.o=.d)
+
+# ---- rules ----
+all: $(TARGET)
+
+$(TARGET): $(OBJS)
+	$(CC) $(LDFLAGS) -o $@ $^ $(LDLIBS)
+
+$(OBJ_DIR)/%.o: $(SRC_DIR)/%.c | $(OBJ_DIR)
+	$(CC) $(CPPFLAGS) $(CFLAGS) -c $< -o $@
+
+$(OBJ_DIR):
+	mkdir -p $@
+
+# ---- convenience modes ----
+debug: CFLAGS := -Wall -Wextra -Wpedantic -O0 -g3
+debug: LDFLAGS := -Wl,--as-needed
+debug: clean all
+
+release: CFLAGS := -Wall -Wextra -Wpedantic -O3 -DNDEBUG
+release: LDFLAGS := -Wl,--as-needed -s
+release: clean all
+
+asan: CFLAGS := -Wall -Wextra -Wpedantic -O1 -g3 -fsanitize=address,undefined
+asan: LDFLAGS := -fsanitize=address,undefined
+asan: clean all
+
+# ---- install ----
+install: $(TARGET)
+	install -d -m 0755 $(DESTDIR)$(BINDIR)
+	install -o root -g root -m 4755 $(TARGET) $(DESTDIR)$(BINDIR)/$(TARGET)
+
+install-systemd:
+	install -d -m 0755 $(DESTDIR)/etc/systemd/system
+	install -m 0644 system/systemd/fblogin@.service $(DESTDIR)/etc/systemd/system/fblogin@.service
+
+install-pam:
+	install -d -m 0755 $(DESTDIR)/etc/pam.d
+	install -m 0644 system/pamd/fblogin $(DESTDIR)/etc/pam.d/fblogin
+
+# Install custom banner used by pam_issue.so (skip gracefully if file missing)
+install-issue:
+	@if [ -f "$(ISSUE_FILE)" ]; then \
+	  echo "Installing banner: $(ISSUE_FILE) -> $(DESTDIR)$(ISSUE_DEST)"; \
+	  install -d -m 0755 $(DESTDIR)/etc; \
+	  install -m 0644 "$(ISSUE_FILE)" "$(DESTDIR)$(ISSUE_DEST)"; \
+	else \
+	  echo "No banner file at $(ISSUE_FILE); skipping install-issue"; \
+	fi
+
+install-man:
+	install -d -m 0755 $(DESTDIR)$(MAN1DIR)
+	install -m 0644 $(MAN1PAGES) $(DESTDIR)$(MAN1DIR)/
+	@# gzip if available, keep original if not
+	@if command -v gzip >/dev/null 2>&1; then \
+	  gzip -9nf $(DESTDIR)$(MAN1DIR)/fblogin.1; \
+	fi
+
+# Convenience: install everything we ship
+install-all: install install-systemd install-pam install-issue install-man
+
+# ---- uninstall ----
+uninstall:
+	rm -f $(DESTDIR)$(BINDIR)/$(TARGET)
+
+uninstall-systemd:
+	rm -f $(DESTDIR)/etc/systemd/system/fblogin@.service
+	rm -f $(DESTDIR)/etc/systemd/system/multi-user.target.wants/fblogin@*.service
+
+uninstall-pam:
+	rm -f $(DESTDIR)/etc/pam.d/fblogin
+
+uninstall-issue:
+	rm -f $(DESTDIR)$(ISSUE_DEST)
+
+uninstall-man:
+	rm -f $(DESTDIR)$(MAN1DIR)/fblogin.1 $(DESTDIR)$(MAN1DIR)/fblogin.1.gz
+
+uninstall-all: uninstall uninstall-systemd uninstall-pam uninstall-issue uninstall-man
+
+# ---- clean ----
+clean:
+	rm -rf $(OBJ_DIR) $(TARGET)
+
+distclean: clean
+
+.PHONY: all debug release asan install uninstall clean distclean \
+        install-systemd install-pam install-issue install-man install-all \
+        uninstall-systemd uninstall-pam uninstall-issue uninstall-man uninstall-all
+-include $(DEPS)
+