diff options
| -rw-r--r-- | main.c | 66 |
1 files changed, 41 insertions, 25 deletions
@@ -24,6 +24,9 @@ #include <lux.h> +#define die(...) err(EXIT_FAILURE, __VA_ARGS__); +#define diex(...) errx(EXIT_FAILURE, __VA_ARGS__); + static int parseint(char *); static double parsedouble(char *); static void usage(char *); @@ -31,7 +34,8 @@ static void usage(char *); int main(int argc, char **argv) { - int opt; + int br, max, opt; + double pr; struct luxdisp disp; luxinit(&disp); @@ -39,42 +43,54 @@ main(int argc, char **argv) goto Gflag; else while ((opt = getopt(argc, argv, ":d:D:gGi:I:s:S:")) != -1) { switch (opt) { - case 'g':; - int br; + case 'g': if ((br = luxget(&disp)) == -1) - err(EXIT_FAILURE, "luxget"); + die("luxget"); printf("%d\n", br); break; case 'G': -Gflag:; - double pr; +Gflag: if ((pr = luxgetp(&disp)) == -1) - err(EXIT_FAILURE, "luxgetp"); + die("luxgetp"); printf("%f\n", pr); break; case 'd': - if (luxdec(&disp, parseint(optarg)) == -1) - err(EXIT_FAILURE, "luxdec"); - break; case 'i': - if (luxinc(&disp, parseint(optarg)) == -1) - err(EXIT_FAILURE, "luxinc"); - break; case 's': - if (luxset(&disp, parseint(optarg)) == -1) - err(EXIT_FAILURE, "luxset"); + br = parseint(optarg); + if (opt == 'd') + br = -br; + if (opt != 's') { + int tmp = luxget(&disp); + if (tmp == -1) + die("luxget"); + br += luxget(&disp); + } + if (br > (max = luxmax(&disp))) + br = max; + else if (br < 0) + br = 0; + if (luxset(&disp, br) == -1) + die("luxset"); break; case 'D': - if (luxdecp(&disp, parsedouble(optarg)) == -1) - err(EXIT_FAILURE, "luxdecp"); - break; case 'I': - if (luxincp(&disp, parsedouble(optarg)) == -1) - err(EXIT_FAILURE, "luxincp"); - break; case 'S': - if (luxsetp(&disp, parsedouble(optarg)) == -1) - err(EXIT_FAILURE, "luxsetp"); + pr = parsedouble(optarg); + if (opt == 'D') + pr = -pr; + if (opt != 'S') { + double tmp = luxgetp(&disp); + if (tmp == -1) + die("luxgetp"); + pr += luxgetp(&disp); + } + if (pr > 100) + pr = 100; + else if (pr < 0) + pr = 0; + if (luxsetp(&disp, pr) == -1) + die("luxset"); break; default: usage(argv[0]); @@ -92,7 +108,7 @@ parseint(char *s) long n = strtol(optarg, &endptr, 0); if (*s != '\0' && *endptr == '\0') return (int) n; - errx(EXIT_FAILURE, "parseint: invalid integer '%s'", s); + diex("parseint: invalid integer '%s'", s); } double @@ -102,7 +118,7 @@ parsedouble(char *s) double n = strtod(optarg, &endptr); if (*s != '\0' && *endptr == '\0') return n; - errx(EXIT_FAILURE, "parsedouble: invalid double '%s'", s); + diex("parsedouble: invalid double '%s'", s); } void |