Move command line API into cli.c

We now have a single entry point to the CLI, whether simple or hush. Put
this in its own file.

Signed-off-by: Simon Glass <sjg@chromium.org>

1 files changed, 106 insertions, 0 deletions

diff --git a/common/cli.c b/common/cli.c
new file mode 100644
index 00000000000..9cf7ba1bd79
--- /dev/null
+++ b/common/cli.c
@@ -0,0 +1,106 @@
+/*
+ * (C) Copyright 2000
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * Add to readline cmdline-editing by
+ * (C) Copyright 2005
+ * JinHua Luo, GuangDong Linux Center, <luo.jinhua@gd-linux.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <cli.h>
+#include <cli_hush.h>
+#include <malloc.h>
+
+/*
+ * Run a command using the selected parser.
+ *
+ * @param cmd	Command to run
+ * @param flag	Execution flags (CMD_FLAG_...)
+ * @return 0 on success, or != 0 on error.
+ */
+int run_command(const char *cmd, int flag)
+{
+#ifndef CONFIG_SYS_HUSH_PARSER
+	/*
+	 * cli_run_command can return 0 or 1 for success, so clean up
+	 * its result.
+	 */
+	if (cli_simple_run_command(cmd, flag) == -1)
+		return 1;
+
+	return 0;
+#else
+	return parse_string_outer(cmd,
+			FLAG_PARSE_SEMICOLON | FLAG_EXIT_FROM_LOOP);
+#endif
+}
+
+int run_command_list(const char *cmd, int len, int flag)
+{
+	int need_buff = 1;
+	char *buff = (char *)cmd;	/* cast away const */
+	int rcode = 0;
+
+	if (len == -1) {
+		len = strlen(cmd);
+#ifdef CONFIG_SYS_HUSH_PARSER
+		/* hush will never change our string */
+		need_buff = 0;
+#else
+		/* the built-in parser will change our string if it sees \n */
+		need_buff = strchr(cmd, '\n') != NULL;
+#endif
+	}
+	if (need_buff) {
+		buff = malloc(len + 1);
+		if (!buff)
+			return 1;
+		memcpy(buff, cmd, len);
+		buff[len] = '\0';
+	}
+#ifdef CONFIG_SYS_HUSH_PARSER
+	rcode = parse_string_outer(buff, FLAG_PARSE_SEMICOLON);
+#else
+	/*
+	 * This function will overwrite any \n it sees with a \0, which
+	 * is why it can't work with a const char *. Here we are making
+	 * using of internal knowledge of this function, to avoid always
+	 * doing a malloc() which is actually required only in a case that
+	 * is pretty rare.
+	 */
+	rcode = cli_simple_run_command_list(buff, flag);
+	if (need_buff)
+		free(buff);
+#endif
+
+	return rcode;
+}
+
+/****************************************************************************/
+
+#if defined(CONFIG_CMD_RUN)
+int do_run(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+	int i;
+
+	if (argc < 2)
+		return CMD_RET_USAGE;
+
+	for (i = 1; i < argc; ++i) {
+		char *arg;
+
+		arg = getenv(argv[i]);
+		if (arg == NULL) {
+			printf("## Error: \"%s\" not defined\n", argv[i]);
+			return 1;
+		}
+
+		if (run_command(arg, flag) != 0)
+			return 1;
+	}
+	return 0;
+}
+#endif