From 67f00e10ceda8b690d2db1a227007d56b6074169 Mon Sep 17 00:00:00 2001
From: darkcoven <admin@darkcoven.tk>
Date: Sat, 28 Sep 2013 00:34:14 +0200
Subject: [PATCH] Readline is now optional

---
 cli/src/admin.c | 30 ++++++++++++++++++++++--------
 configure.ac    | 33 +++++++++++++++++++++++++++++----
 2 files changed, 51 insertions(+), 12 deletions(-)

diff --git a/cli/src/admin.c b/cli/src/admin.c
index bb4b310..dbd30bb 100644
--- a/cli/src/admin.c
+++ b/cli/src/admin.c
@@ -1,12 +1,18 @@
 
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
 #include <stdio.h>
 #include <signal.h>
 #include <unistd.h>
 #include <setjmp.h>
 
 #include <getopt.h>
+#ifdef HAVE_LIBREADLINE
 #include <readline/readline.h>
 #include <readline/history.h>
+#endif
 
 #include "common.h"
 #include "commands.h"
@@ -15,7 +21,7 @@
 #define MAXCOM	32
 
 
-int main_loop_continue = 1;
+int main_loop_continue;
 
 
 static const struct TreeNode* getSubCom (char **com, int n, int *t)
@@ -48,6 +54,7 @@ static const struct TreeNode* getSubCom (char **com, int n, int *t)
 }
 
 
+#ifdef HAVE_LIBREADLINE
 static const struct TreeNode *compcur;
 
 
@@ -105,6 +112,7 @@ static char** my_completion (const char *text, int start, int end UNUSED)
 	
 	return matches;
 }
+#endif /* HAVE_LIBREADLINE */
 
 
 static struct ngadmin *nga;
@@ -212,7 +220,11 @@ int main (int argc, char **argv)
 	
 	tcgetattr(STDIN_FILENO, &orig_term);
 	current_term = orig_term;
+#ifdef HAVE_LIBREADLINE
 	batch = false;
+#else
+	batch = true;
+#endif
 	
 	opterr = 0;
 	
@@ -317,28 +329,28 @@ int main (int argc, char **argv)
 	if (mac != NULL && pre_login(mac, retries) != 0)
 		goto end;
 	
-	if (batch) {
-		/* in batch mode, we must be logged to continue */
-		if (ngadmin_getCurrentSwitch(nga) == NULL) {
-			printf("must be logged\n");
-			goto end;
-		}
-	} else {
+	if (!batch) {
+#ifdef HAVE_LIBREADLINE
 		/* initialize readline functions */
 		rl_attempted_completion_function = my_completion;
 		rl_completion_entry_function = my_generator;
 		
 		sigsetjmp(jmpbuf, 1);
+#endif
 	}
 	
+	main_loop_continue = 1;
+	
 	while (main_loop_continue) {
 		/* read user input */
 		line = NULL;
 		n = 0;
 		if (batch)
 			n = getline(&line, (size_t*)&i, stdin);
+#ifdef HAVE_LIBREADLINE
 		else
 			line = readline("> ");
+#endif
 		if (n < 0 || line == NULL)
 			goto end;
 		
@@ -350,8 +362,10 @@ int main (int argc, char **argv)
 			free(line);
 			continue;
 		} else {
+#ifdef HAVE_LIBREADLINE
 			if (!batch)
 				add_history(line);
+#endif
 			free(line);
 		}
 		
diff --git a/configure.ac b/configure.ac
index d0dc40b..f57c78e 100644
--- a/configure.ac
+++ b/configure.ac
@@ -7,17 +7,33 @@ AC_CONFIG_HEADERS([config.h])
 
 AM_INIT_AUTOMAKE
 
-LT_PREREQ([2.4])
-LT_INIT
-
 # Checks for programs
 AC_PROG_CC
 AM_PROG_CC_C_O
+AC_PROG_LIBTOOL
+AC_PROG_INSTALL
+
+LT_PREREQ([2.4])
+LT_INIT
+
+
+AC_ARG_WITH([readline],
+	[AS_HELP_STRING([--with-readline], [support fancy command line editing @<:@default=check@:>@])],
+	[with_readline="$withval"], [with_readline=check])
 
 CFLAGS="-Wall -Wextra -Os"
 
 # Checks for libraries
-AC_CHECK_LIB([readline], [readline])
+if test "x${with_readline}" != xno; then
+	AC_CHECK_LIB([readline], [readline], [], [
+		if test "x${with_readline}" = xyes; then
+			AC_MSG_ERROR([
+----------------------------------------
+Unable to find readline library
+----------------------------------------])
+		fi
+	])
+fi
 
 # Checks for header files
 AC_CHECK_HEADERS([arpa/inet.h stdlib.h string.h sys/ioctl.h termios.h unistd.h])
@@ -47,3 +63,12 @@ AC_CONFIG_FILES([
 
 AC_OUTPUT
 
+
+echo "
+${PACKAGE_NAME} version ${PACKAGE_VERSION}
+Prefix.............: ${prefix}
+Debug..............: 
+Compiler...........: ${CC} ${CFLAGS} ${CPPFLAGS}
+"
+
+
-- 
2.39.5