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authorSimon Glass <sjg@chromium.org>2014-04-10 20:01:29 -0600
committerTom Rini <trini@ti.com>2014-05-29 17:48:21 -0400
commit30354978ff470470c15caea2566b61b5792ad277 (patch)
tree5f6b7ae28ec83cb06e49f9a39b0e0621279c095c /common/cli.c
parent66ded17dfc8110f0d9aa9d50fe140a320bfa4e53 (diff)
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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>
Diffstat (limited to 'common/cli.c')
-rw-r--r--common/cli.c106
1 files changed, 106 insertions, 0 deletions
diff --git a/common/cli.c b/common/cli.c
new file mode 100644
index 0000000..9cf7ba1
--- /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