qugalet/dwmblocks
1
0
Fork 0
Code Issues Pull requests Actions Packages Projects Releases Wiki Activity

Improved sigdwmblocks

Browse source
This commit is contained in:
Ashish Kumar Yadav 2021-04-04 13:04:23 +05:30
parent 0e65963446
commit 894ca1e544
1 changed files with 23 additions and 23 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

46
sigdwmblocks/sigdwmblocks.c
View file

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