shithub: watch

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check -t period for sanity

--- a/watch.c

+++ b/watch.c

@@ -172,6 +172,7 @@

 void

 main(int argc, char *argv[])

 {

+	int t;

 	char *cmd;

 	cmd = "mk";

@@ -179,7 +180,9 @@

 	case 'e':

 		eadd(EARGF(usage())); break;

 	case 't':

-		period = 1000*strtol(EARGF(usage()), nil, 10); break;

+		if((t = strtol(EARGF(usage()), nil, 10)) > 0)

+			period = t*1000;

+		break;

 	case 'G':

 		noregroup = 1; break;

 	default: usage();