Add "yes" command.

3 files changed, 30 insertions, 0 deletions

diff --git a/toys/Config.in b/toys/Config.in
index 438785cd..64fa2a28 100644
--- a/toys/Config.in
+++ b/toys/Config.in
@@ -300,5 +300,13 @@ config WHICH
 
 	  -a	Show all matches
 
+config YES
+	bool "yes"
+	default n
+	help
+	  usage: yes [args...]
+
+	  Repeatedly output line until killed.  If no args, output 'y'.
+
 endmenu
 
diff --git a/toys/toylist.h b/toys/toylist.h
index 4e45924e..270f4341 100644
--- a/toys/toylist.h
+++ b/toys/toylist.h
@@ -81,3 +81,4 @@ USE_PWD(NEWTOY(pwd, NULL, TOYFLAG_BIN))
 USE_TOYSH(OLDTOY(sh, toysh, "c:i", TOYFLAG_BIN))
 USE_TOYSH(NEWTOY(toysh, "c:i", TOYFLAG_BIN))
 USE_WHICH(NEWTOY(which, "a", TOYFLAG_USR|TOYFLAG_BIN))
+USE_YES(NEWTOY(yes, "", TOYFLAG_USR|TOYFLAG_BIN))
diff --git a/toys/yes.c b/toys/yes.c
new file mode 100644
index 00000000..860c331c
--- /dev/null
+++ b/toys/yes.c
@@ -0,0 +1,21 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * hello.c - A hello world program.
+ */
+
+#include "toys.h"
+
+int yes_main(void)
+{
+	for (;;) {
+		int i;
+		for (i=0; toys.optargs[i]; i++) {
+			if (i) xputc(' ');
+			xprintf("%s", toys.optargs[i]);
+		}
+		if (!i) xputc('y');
+		xputc('\n');
+	}
+
+	return 0;
+}