Add package: sdhcp

core/sdhcp.d/files/Makefile

@@ -0,0 +1,60 @@
+include config.mk
+
+.POSIX:
+.SUFFIXES: .c .o
+
+HDR = util.h arg.h
+LIB = \
+	util/strlcpy.o \
+	util/eprintf.o
+
+BIN = sdhcp
+
+OBJ = $(BIN).o $(LIB)
+MAN = $(BIN).1
+
+all: options $(BIN)
+
+options:
+	@echo sdhcp build options:
+	@echo "CFLAGS   = ${CFLAGS}"
+	@echo "LDFLAGS  = ${LDFLAGS}"
+	@echo "CC       = ${CC}"
+
+$(BIN): $(BIN).o
+
+$(OBJ): $(HDR) config.mk
+
+.o: util.a
+	@echo LD $@
+	@$(LD) -o $@ $< util.a $(LDFLAGS)
+
+.c.o:
+	@echo CC $<
+	@$(CC) -c -o $@ $< $(CFLAGS)
+
+util.a: $(LIB)
+	@echo AR $@
+	@$(AR) -r -c $@ $(LIB)
+
+install: all
+	@echo installing executables to $(DESTDIR)$(PREFIX)/sbin
+	@mkdir -p $(DESTDIR)$(PREFIX)/sbin
+	@cp -f $(BIN) $(DESTDIR)$(PREFIX)/sbin
+	@cd $(DESTDIR)$(PREFIX)/sbin && chmod 755 $(BIN)
+	@echo installing manual pages to $(DESTDIR)$(MANPREFIX)/man1
+	@mkdir -p $(DESTDIR)$(MANPREFIX)/man1
+	@for m in $(MAN); do sed "s/VERSION/$(VERSION)/g" < "$$m" > $(DESTDIR)$(MANPREFIX)/man1/"$$m"; done
+	@cd $(DESTDIR)$(MANPREFIX)/man1 && chmod 644 $(MAN)
+
+uninstall:
+	@echo removing executables from $(DESTDIR)$(PREFIX)/sbin
+	@cd $(DESTDIR)$(PREFIX)/sbin && rm -f $(BIN)
+	@echo removing manual pages from $(DESTDIR)$(MANPREFIX)/man1
+	@cd $(DESTDIR)$(MANPREFIX)/man1 && rm -f $(MAN)
+
+clean:
+	@echo cleaning
+	@rm -f $(BIN) $(OBJ) util.a
+
+.PHONY: all options clean install uninstall

core/sdhcp.d/files/setip.c

@@ -0,0 +1,62 @@
+#include <stdlib.h>
+#include <string.h>
+
+#include <unistd.h>
+#include <net/if.h>
+#include <net/route.h>
+#include <arpa/inet.h>
+#include <sys/ioctl.h>
+
+int main( void )
+{
+	struct sockaddr_in * addr;
+	char *ifname = getenv( "IFNAME" ),
+	     *client = getenv( "CLIENT" ),
+	     *getway = getenv( "ROUTER" ),
+	     *mask   = getenv( "MASK"   );
+
+	int fd = socket(PF_INET, SOCK_DGRAM, IPPROTO_IP);
+
+	// IP
+	{
+		struct ifreq iface;
+		iface.ifr_addr.sa_family = AF_INET;
+		strcpy( iface.ifr_name, ifname );
+
+		addr = &iface.ifr_addr;
+	
+		addr->sin_family = AF_INET;
+		addr->sin_addr.s_addr = inet_addr(client);
+		ioctl(fd, SIOCSIFADDR, &iface);
+
+		addr->sin_family = AF_INET;
+		addr->sin_addr.s_addr = inet_addr(mask);
+		ioctl(fd, SIOCSIFNETMASK, &iface);
+
+		iface.ifr_flags |= ( IFF_UP | IFF_RUNNING );
+		ioctl(fd, SIOCSIFFLAGS, &iface);
+	}	
+
+	// ROUTE
+	{
+		struct rtentry route;
+
+		addr = &route.rt_dst;
+		addr->sin_family = AF_INET;
+		addr->sin_addr.s_addr = INADDR_ANY;
+
+		addr = &route.rt_gateway;
+		addr->sin_family = AF_INET;
+		addr->sin_addr.s_addr = inet_addr(getway);
+
+		addr = &route.rt_genmask;
+		addr->sin_family = AF_INET;
+		addr->sin_addr.s_addr = INADDR_ANY;
+
+		route.rt_flags = RTF_UP | RTF_GATEWAY ;
+		ioctl(fd, SIOCADDRT, &route);
+	}
+
+	close(fd);
+	return 0;
+}