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@ -10,23 +10,26 @@
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#define LOCKFILE "/tmp/dwmblocks.pid"
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int
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parsesignal(char *arg, int *s)
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parsesignal(char *arg)
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{
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int i = 0;
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for (; *arg != '\0'; arg++)
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if (*arg >= '0' && *arg <= '9')
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i = 10 * i + *arg - '0';
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else
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return 0;
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if ((i += SIGRTMIN) > SIGRTMAX)
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return 0;
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*s = i;
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return 1;
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else {
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fputs("Usage: sigdwmblocks <signal> [<sigval>]\n", stderr);
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exit(2);
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}
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if ((i += SIGRTMIN) > SIGRTMAX) {
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fputs("Error: <signal> out of range.\n", stderr);
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exit(2);
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}
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return i;
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}
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int
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parsesigval(char *arg, int *v)
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parsesigval(char *arg)
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{
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int s = 1, i = 0;
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@ -38,10 +41,11 @@ parsesigval(char *arg, int *v)
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for (; *arg != '\0'; arg++)
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if (*arg >= '0' && *arg <= '9')
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i = 10 * i + *arg - '0';
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else
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return 0;
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*v = s * i;
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return 1;
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else {
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fputs("Usage: sigdwmblocks <signal> [<sigval>]\n", stderr);
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exit(2);
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}
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return s * i;
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}
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void
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@ -89,16 +93,12 @@ main(int argc, char *argv[])
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int sig;
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union sigval sv;
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if (argc > 1 && parsesignal(argv[1], &sig)) {
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if (argc == 2) {
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sv.sival_int = NILL;
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sendsignal(sig, sv);
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return 0;
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} else if (argc == 3 && parsesigval(argv[2], &(sv.sival_int))) {
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sendsignal(sig, sv);
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return 0;
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}
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if (argc < 2 || argc > 3) {
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fputs("Usage: sigdwmblocks <signal> [<sigval>]\n", stderr);
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return 2;
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}
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fprintf(stderr, "Usage: %s <signal> [<sigval>]\n", argv[0]);
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return 2;
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sig = parsesignal(argv[1]);
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sv.sival_int = argc == 2 ? NILL : parsesigval(argv[2]);
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sendsignal(sig, sv);
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return 0;
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}
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