@@ -71,8 +71,13 @@ AC_CHECK_LIB([nftnl], [nft_rule_alloc], ,
AC_CHECK_LIB([gmp], [__gmpz_init], ,
AC_MSG_ERROR([No suitable version of libgmp found]))
-AC_CHECK_LIB([readline], [readline], ,
- AC_MSG_ERROR([No suitable version of libreadline found]))
+AC_ARG_WITH([cli], [AS_HELP_STRING([--without-cli],
+ [disable interactive CLI (libreadline support)])],
+ [], [with_cli=yes])
+AS_IF([test "x$with_cli" != xno], [
+AC_CHECK_LIB([readline],[readline], , AC_MSG_ERROR([No suitable version of libreadline found]))
+])
+AC_SUBST(with_cli)
# Checks for header files.
AC_HEADER_STDC
@@ -31,7 +31,14 @@ extern unsigned int debug_level;
extern const char *include_paths[INCLUDE_PATHS_MAX];
struct parser_state;
+#ifdef HAVE_LIBREADLINE
extern int cli_init(struct parser_state *state);
+#else
+static inline int cli_init(struct parser_state *state)
+{
+ return -1;
+}
+#endif
extern void cli_exit(void);
extern void cli_display(const char *fmt, va_list ap) __fmtstring(1, 0);
@@ -3,7 +3,9 @@ PROGRAMS += nft
nft-destdir := @sbindir@
nft-obj += main.o
+ifeq (@with_cli@,yes)
nft-obj += cli.o
+endif
nft-obj += rule.o
nft-obj += statement.o
nft-obj += datatype.o
@@ -335,7 +335,11 @@ int main(int argc, char * const *argv)
if (scanner_read_file(scanner, filename, &internal_location) < 0)
goto out;
} else if (interactive) {
- cli_init(&state);
+ if (cli_init(&state) < 0) {
+ fprintf(stderr, "%s: interactive CLI not supported in this build\n",
+ argv[0]);
+ exit(NFT_EXIT_FAILURE);
+ }
return 0;
} else {
fprintf(stderr, "%s: no command specified\n", argv[0]);
This makes nftables a bit more embedded-friendly. Signed-off-by: Steven Barth <cyrus@openwrt.org> --- configure.ac | 9 +++++++-- include/nftables.h | 7 +++++++ src/Makefile.in | 2 ++ src/main.c | 6 +++++- 4 files changed, 21 insertions(+), 3 deletions(-)