ubase

commit 1927d289903e1729699e7ee95161b652799f1106
parent 6a1970caa4fce81899ece1ef4da614ed33b6554d
Author: sin <sin@2f30.org>
Date:   Sat, 31 Aug 2013 17:33:45 +0100

Add single shot option for pidof(8)

Diffstat:
M
pidof.c
 | 
9
++++++++-

1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/pidof.c b/pidof.c
@@ -10,7 +10,7 @@
 static void
 usage(void)
 {
-	eprintf("usage: %s [program...]\n", argv0);
+	eprintf("usage: %s [-s] [program...]\n", argv0);
 }
 
 int
@@ -22,8 +22,12 @@ main(int argc, char *argv[])
 	struct procstat ps;
 	char cmdline[BUFSIZ], *cmd, *p;
 	int i, found = 0;
+	int sflag = 0;
 
 	ARGBEGIN {
+	case 's':
+		sflag = 1;
+		break;
 	default:
 		usage();
 	} ARGEND;
@@ -51,10 +55,13 @@ main(int argc, char *argv[])
 			if (strcmp(cmd, argv[i]) == 0) {
 				putword(entry->d_name);
 				found++;
+				if (sflag)
+					goto out;
 			}
 		}
 	}
 
+out:
 	if (found)
 		putchar('\n');