option: allow handle_switches() to set non-boolean values

The function handle_switches() was designated to set or clear
simple boolean flags but some options, internally, are
non-boolean.

So, extend the function so that it can be used to set non-boolean
values.

Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/lib.c b/lib.c
index 4b5bc7d4..3f36ed2d 100644
--- a/lib.c
+++ b/lib.c
@@ -418,11 +418,13 @@ static const char *match_option(const char *arg, const char *prefix)
 }
 
 #define OPT_INVERSE	1
+#define OPT_VAL		2
 struct flag {
 	const char *name;
 	int *flag;
 	int (*fun)(const char *arg, const char *opt, const struct flag *, int options);
 	unsigned long mask;
+	int val;
 };
 
 static int handle_switches(const char *ori, const char *opt, const struct flag *flags)
@@ -453,6 +455,8 @@ static int handle_switches(const char *ori, const char *opt, const struct flag *
 
 		// boolean flag
 		if (opt[0] == '\0' && flags->flag) {
+			if (flags->mask & OPT_VAL)
+				val = flags->val;
 			if (flags->mask & OPT_INVERSE)
 				val = !val;
 			*flags->flag = val;