From 30354978ff470470c15caea2566b61b5792ad277 Mon Sep 17 00:00:00 2001 From: Simon Glass Date: Thu, 10 Apr 2014 20:01:29 -0600 Subject: 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 --- common/cli.c | 106 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 106 insertions(+) create mode 100644 common/cli.c (limited to 'common/cli.c') diff --git a/common/cli.c b/common/cli.c new file mode 100644 index 0000000000..9cf7ba1bd7 --- /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, + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include +#include +#include +#include + +/* + * 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 -- cgit v1.2.1