ipcs: getopt_ulflag'ification, -170 bytes

diff --git a/util-linux/ipcs.c b/util-linux/ipcs.c
index c54f5356739d26e45d8f503593bcd9649c8a9f8c..78c0ce9cff141898f0b99d2e815803b1bbc5b285 100644 (file)
--- a/util-linux/ipcs.c
+++ b/util-linux/ipcs.c
@@ -570,52 +570,29 @@ static void print_sem(int semid)
 
 int ipcs_main(int argc, char **argv)
 {
-       int opt, id = 0;
+       int id = 0;
        unsigned flags = 0;
+       unsigned long opt;
+       char *opt_i;
 #define flag_print     (1<<0)
 #define flag_msg       (1<<1)
 #define flag_sem       (1<<2)
 #define flag_shm       (1<<3)
-       const char *const options = "atclupsmqi:ih?";
 
-       while ((opt = getopt(argc, argv, options)) != -1) {
-               switch (opt) {
-               case 'i':
-                       id = atoi(optarg);
-                       flags |= flag_print;
-                       break;
-               case 'a':
-                       flags |= flag_msg | flag_sem | flag_shm;
-                       break;
-               case 'q':
-                       flags |= flag_msg;
-                       break;
-               case 's':
-                       flags |= flag_sem;
-                       break;
-               case 'm':
-                       flags |= flag_shm;
-                       break;
-               case 't':
-                       format = TIME;
-                       break;
-               case 'c':
-                       format = CREATOR;
-                       break;
-               case 'p':
-                       format = PID;
-                       break;
-               case 'l':
-                       format = LIMITS;
-                       break;
-               case 'u':
-                       format = STATUS;
-                       break;
-               case 'h':
-               case '?':
-                       bb_show_usage();
-               }
+       opt = bb_getopt_ulflags(argc, argv, "i:aqsmtcplu", &opt_i);
+       if (opt & 0x1) { // -i
+               id = atoi(optarg);
+               flags |= flag_print;
        }
+       if (opt & 0x2) flags |= flag_msg | flag_sem | flag_shm; // -a
+       if (opt & 0x4) flags |= flag_msg; // -q
+       if (opt & 0x8) flags |= flag_sem; // -s
+       if (opt & 0x10) flags |= flag_shm; // -m
+       if (opt & 0x20) format = TIME; // -t
+       if (opt & 0x40) format = CREATOR; // -c
+       if (opt & 0x80) format = PID; // -p
+       if (opt & 0x100) format = LIMITS; // -l
+       if (opt & 0x200) format = STATUS; // -u
 
        if (flags & flag_print) {
                if (flags & flag_shm) {