Description: quick fix for flex.
 Hoping flex's buffering is smart enough,
 Otherwise this shit should be rewritten, or
 illumos lex should be used.
 See http://flex.sourceforge.net/manual/Lex-and-Posix.html

Index: smf-tools/usr/src/cmd/svc/svccfg/svccfg.l
===================================================================
--- smf-tools.orig/usr/src/cmd/svc/svccfg/svccfg.l	2012-10-08 00:25:33.000000000 +0000
+++ smf-tools/usr/src/cmd/svc/svccfg/svccfg.l	2012-11-10 14:04:22.782011167 +0000
@@ -36,26 +36,14 @@
 #include "svccfg.h"
 #include "svccfg_grammar.h"
 
-/*
- * We need to undefine lex's input, unput, and output macros so that references
- * to these call the functions we provide at the end of this source file,
- * instead of the default versions based on libc's stdio.
- */
-#ifdef input
-#undef input
-#endif
-
-#ifdef unput
-#undef unput
-#endif
-
-#ifdef output
-#undef output
-#endif
-
-static int input(void);
-static void unput(int);
-static void output(int);
+#define YY_INPUT(buf, result, max_size) \
+{ \
+    int c = my_input(); \
+    result = (c == 0) ? YY_NULL : (buf[0] = c, 1); \
+}
+
+
+static int my_input(void);
 
 int parens = 0;
 
@@ -70,11 +58,6 @@
  */
 %Start	WORD
 
-/*
- * The default value of lex for transitions is 2000 and it seems we reached it.
- * So we are bumping it up!
- */
-%a 3000
 
 %%
 
@@ -202,7 +185,7 @@
 }
 
 static int
-input(void)
+my_input(void)
 {
 	static int saw_eof = 0;
 
@@ -210,8 +193,10 @@
 
 	/*
 	 * To ensure input is terminated, slip in a newline on EOF.
+     * FIXME: there is no EOF for command line invocation, thus
+     * "svccfg <whateve>" does nothing. Catch end-of-line (0) as well.
 	 */
-	if (c == EOF) {
+	if (c == EOF || c == 0) {
 		if (saw_eof)
 			return (0);
 
@@ -226,18 +211,3 @@
 	return (c);
 }
 
-static void
-unput(int c)
-{
-	if (c == '\n')
-		yylineno--;
-
-	(void) engine_cmd_ungetc(est, c == 0 ? EOF : c);
-}
-
-static void
-output(int c)
-{
-	char ch = c;
-	engine_cmd_nputs(est, &ch, sizeof (ch));
-}
Index: smf-tools/usr/src/cmd/svc/svccfg/svccfg.h
===================================================================
--- smf-tools.orig/usr/src/cmd/svc/svccfg/svccfg.h	2012-11-10 13:58:21.787048655 +0000
+++ smf-tools/usr/src/cmd/svc/svccfg/svccfg.h	2012-11-10 13:58:23.127397069 +0000
@@ -495,8 +495,6 @@
 void help(int);
 
 int engine_cmd_getc(engine_state_t *);
-int engine_cmd_ungetc(engine_state_t *, char);
-void engine_cmd_nputs(engine_state_t *, char *, size_t);
 
 void tmpl_errors_destroy(tmpl_errors_t *);
 void tmpl_errors_print(FILE *, tmpl_errors_t *, const char *);
Index: smf-tools/usr/src/cmd/svc/svccfg/svccfg_engine.c
===================================================================
--- smf-tools.orig/usr/src/cmd/svc/svccfg/svccfg_engine.c	2012-10-08 00:25:33.000000000 +0000
+++ smf-tools/usr/src/cmd/svc/svccfg/svccfg_engine.c	2012-11-10 13:58:23.129941346 +0000
@@ -117,26 +117,6 @@
 }
 
 int
-engine_cmd_ungetc(engine_state_t *E, char c)
-{
-	if (E->sc_cmd_file != NULL)
-		return (ungetc(c, E->sc_cmd_file));
-
-	if (E->sc_cmd_buf != NULL)
-		*(E->sc_cmd_buf + --E->sc_cmd_bufoff) = c;
-
-	return (c);
-}
-
-/*ARGSUSED*/
-void
-engine_cmd_nputs(engine_state_t *E, char *c, size_t n)
-{
-	/* our lexer shouldn't need this state */
-	exit(11);
-}
-
-int
 engine_exec(char *cmd)
 {
 	est->sc_cmd_buf = cmd;