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-rw-r--r--lux.c23
1 files changed, 19 insertions, 4 deletions
diff --git a/lux.c b/lux.c
index f6fc33a..0959bb7 100644
--- a/lux.c
+++ b/lux.c
@@ -15,12 +15,11 @@
* PERFORMANCE OF THIS SOFTWARE.
*/
-#define _POSIX_C_SOURCE 2
-
#include <err.h>
+#include <getopt.h>
+#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
-#include <unistd.h>
#include <lux.h>
@@ -37,11 +36,27 @@ main(int argc, char **argv)
int br, max, opt;
double pr;
lux_t disp;
+ const char *optstr = "d:D:gGi:I:s:S:";
+ static struct option longopts[] = {
+ {"decrease", required_argument, NULL, 'd'},
+ {"decrease-percent", required_argument, NULL, 'D'},
+ {"get", no_argument, NULL, 'g'},
+ {"get-percent", no_argument, NULL, 'G'},
+ {"increase", required_argument, NULL, 'i'},
+ {"increase-percent", required_argument, NULL, 'I'},
+ {"set", required_argument, NULL, 's'},
+ {"set-percent", required_argument, NULL, 'S'},
+ {NULL, 0, NULL, 0}
+ };
luxinit(&disp);
if (argc == 1)
goto Gflag;
- else while ((opt = getopt(argc, argv, ":d:D:gGi:I:s:S:")) != -1) {
+ else while (true) {
+ opt = getopt_long(argc, argv, optstr, longopts, NULL);
+ if (opt == -1)
+ break;
+
switch (opt) {
case 'g':
if ((br = luxget(&disp)) == -1)