hush: implement test builtin
diff --git a/shell/hush.c b/shell/hush.c
index 5c64190..04afbfd 100644
--- a/shell/hush.c
+++ b/shell/hush.c
@@ -489,27 +489,6 @@
#endif
/* Index of subroutines: */
-/* function prototypes for builtins */
-static int builtin_cd(char **argv);
-static int builtin_eval(char **argv);
-static int builtin_exec(char **argv);
-static int builtin_exit(char **argv);
-static int builtin_export(char **argv);
-#if ENABLE_HUSH_JOB
-static int builtin_fg_bg(char **argv);
-static int builtin_jobs(char **argv);
-#endif
-#if ENABLE_HUSH_HELP
-static int builtin_help(char **argv);
-#endif
-static int builtin_pwd(char **argv);
-static int builtin_read(char **argv);
-static int builtin_set(char **argv);
-static int builtin_shift(char **argv);
-static int builtin_source(char **argv);
-static int builtin_umask(char **argv);
-static int builtin_unset(char **argv);
-//static int builtin_not_written(char **argv);
/* o_string manipulation: */
static int b_check_space(o_string *o, int len);
static int b_addchr(o_string *o, int ch);
@@ -633,6 +612,29 @@
}
+/* Function prototypes for builtins */
+static int builtin_cd(char **argv);
+static int builtin_eval(char **argv);
+static int builtin_exec(char **argv);
+static int builtin_exit(char **argv);
+static int builtin_export(char **argv);
+#if ENABLE_HUSH_JOB
+static int builtin_fg_bg(char **argv);
+static int builtin_jobs(char **argv);
+#endif
+#if ENABLE_HUSH_HELP
+static int builtin_help(char **argv);
+#endif
+static int builtin_pwd(char **argv);
+static int builtin_read(char **argv);
+static int builtin_test(char **argv);
+static int builtin_set(char **argv);
+static int builtin_shift(char **argv);
+static int builtin_source(char **argv);
+static int builtin_umask(char **argv);
+static int builtin_unset(char **argv);
+//static int builtin_not_written(char **argv);
+
/* Table of built-in functions. They can be forked or not, depending on
* context: within pipes, they fork. As simple commands, they do not.
* When used in non-forking context, they can change global variables
@@ -651,6 +653,8 @@
};
static const struct built_in_command bltins[] = {
+ BLTIN("[" , builtin_test, "Test condition"),
+ BLTIN("[[" , builtin_test, "Test condition"),
#if ENABLE_HUSH_JOB
BLTIN("bg" , builtin_fg_bg, "Resume a job in the background"),
#endif
@@ -672,6 +676,7 @@
BLTIN("set" , builtin_set, "Set/unset shell local variables"),
BLTIN("shift" , builtin_shift, "Shift positional parameters"),
// BLTIN("trap" , builtin_not_written, "Trap signals"),
+ BLTIN("test" , builtin_test, "Test condition"),
// BLTIN("ulimit", builtin_not_written, "Controls resource limits"),
BLTIN("umask" , builtin_umask, "Sets file creation mask"),
BLTIN("unset" , builtin_unset, "Unset environment variable"),
@@ -824,6 +829,18 @@
return cwd;
}
+
+/* built-in 'test' handler */
+static int builtin_test(char **argv)
+{
+ int argc = 0;
+ while (*argv) {
+ argc++;
+ argv++;
+ }
+ return test_main(argc, argv - argc);
+}
+
/* built-in 'eval' handler */
static int builtin_eval(char **argv)
{