u-boot/common/cli_hush_upstream.c

608  * debugging output pretty */
1074 	/* "set -x" output should not be redirectable with subsequent 2>FILE.
1076 	 * for all subsequent output.
6492 static int expand_vars_to_list(o_string *output, int n, char *arg);
6537  * Return in output->ended_in_ifs:
6540 static int expand_on_ifs(o_string *output, int n, const char *str)
6552 			if (!(output->o_expflags & EXP_FLAG_GLOB)) {
6553 				o_addblock(output, str, word_len);
6559 				o_addblock_duplicate_backslash(output, str, word_len);
6561 				/*o_addblock(output, str, word_len); - WRONG: "v='\*'; echo Z$v" prints "Z*" instead of "Z\*" */
6562 				/*o_addqblock(output, str, word_len); - WRONG: "v='*'; echo Z$v" prints "Z*" instead of Z* files */
6588 		if (output->has_quoted_part
6598 		 || output->data[output->length - 1]
6601 			o_addchr(output, '\0');
6602 			debug_print_list("expand_on_ifs", output, n);
6603 			n = o_save_ptr(output, n);
6607 	output->ended_in_ifs = last_is_ifs;
6608 	debug_print_list("expand_on_ifs[1]", output, n);
6778 static NOINLINE int encode_then_append_var_plusminus(o_string *output, int n,
6794 			output->has_quoted_part = 1;
6796 		return expand_vars_to_list(output, n, str);
6811 			if (!dquoted && !(output->o_expflags & EXP_FLAG_SINGLEWORD) && strchr(G.ifs, ch)) {
6816 					n = expand_vars_to_list(output, n, dest.data);
6818 					o_addchr(output, '\0');
6819 					n = o_save_ptr(output, n); /* create next word */
6821 				if (output->length != o_get_last_ptr(output, n)
6822 				 || output->has_quoted_part
6833 					o_addchr(output, '\0');
6834 					n = o_save_ptr(output, n); /* create next word */
6907 		n = expand_vars_to_list(output, n, dest.data);
7013 static int append_str_maybe_ifs_split(o_string *output, int n,
7017 		debug_printf_expand("unquoted '%s', output->o_escape:%d\n", val,
7018 				!!(output->o_expflags & EXP_FLAG_ESC_GLOB_CHARS));
7020 			n = expand_on_ifs(output, n, val);
7022 		output->has_quoted_part = 1;
7023 		debug_printf_expand("quoted '%s', output->o_escape:%d\n", val,
7024 				!!(output->o_expflags & EXP_FLAG_ESC_GLOB_CHARS));
7026 			o_addQstr(output, val);
7033 static NOINLINE int expand_one_var(o_string *output, int n,
7393 					n = encode_then_append_var_plusminus(output, n, exp_word,
7447 	n = append_str_maybe_ifs_split(output, n, first_ch, val);
7458 static NOINLINE int expand_vars_to_list(o_string *output, int n, char *arg)
7460 	/* output->o_expflags & EXP_FLAG_SINGLEWORD (0x80) if we are in
7467 			!!(output->o_expflags & EXP_FLAG_SINGLEWORD));
7468 	debug_print_list("expand_vars_to_list[0]", output, n);
7476 		if (output->ended_in_ifs) {
7477 			o_addchr(output, '\0');
7478 			n = o_save_ptr(output, n);
7479 			output->ended_in_ifs = 0;
7482 		o_addblock(output, arg, p - arg);
7483 		debug_print_list("expand_vars_to_list[1]", output, n);
7490 		first_ch = arg[0] | (output->o_expflags & EXP_FLAG_SINGLEWORD);
7514 					n = expand_on_ifs(output, n, G.global_argv[i]);
7519 						o_addchr(output, '\0');
7520 						debug_print_list("expand_vars_to_list[2]", output, n);
7521 						n = o_save_ptr(output, n);
7522 						debug_print_list("expand_vars_to_list[3]", output, n);
7529 			 && !(output->o_expflags & EXP_FLAG_SINGLEWORD) /* not v="$@" case */
7532 					o_addQstr(output, G.global_argv[i]);
7535 					o_addchr(output, '\0');
7536 					debug_print_list("expand_vars_to_list[4]", output, n);
7537 					n = o_save_ptr(output, n);
7541 					o_addQstr(output, G.global_argv[i]);
7545 						o_addchr(output, G.ifs[0]);
7547 				output->has_quoted_part = 1;
7554 			output->has_quoted_part = 1;
7562 			o_addchr(output, SPECIAL_VAR_SYMBOL);
7572 			/* Can't just stuff it into output o_string,
7579 			n = append_str_maybe_ifs_split(output, n, first_ch, subst_result.data);
7597 			/* && (output->o_expflags & EXP_FLAG_ESC_GLOB_CHARS) */
7603 				o_grow_by(output, 1);
7604 				output->data[output->length++] = '\\';
7606 			o_addstr(output, arith_buf);
7612 			n = expand_one_var(output, n, first_ch, arg, &p);
7625 		if (output->ended_in_ifs) {
7626 			o_addchr(output, '\0');
7627 			n = o_save_ptr(output, n);
7629 		debug_print_list("expand_vars_to_list[a]", output, n);
7633 		o_addstr(output, arg);
7634 		debug_print_list("expand_vars_to_list[b]", output, n);
7636 	if (output->length == o_get_last_ptr(output, n) /* expansion is empty */
7638 	 && !output->has_quoted_part
7642 		output->has_empty_slot = 1;
7652 	o_string output = NULL_O_STRING;
7654 	output.o_expflags = expflags;
7659 		output.ended_in_ifs = 0;
7660 		n = o_save_ptr(&output, n);
7666 		n = expand_vars_to_list(&output, n, *argv++);
7667 		/* if (!output->has_empty_slot) -- need this?? */
7668 			o_addchr(&output, '\0');
7670 	debug_print_list("expand_variables", &output, n);
7672 	/* output.data (malloced in one block) gets returned in "list" */
7673 	list = o_finalize_list(&output, n);
8191 		 * parent shell's traps. It only says that its output
8201 		 * # (trap)        <--- trap is in subshell - no output (correct, traps are reset)
8202 		 * # true | trap   <--- trap is in subshell - no output (ditto)
8203 		 * # echo `true | trap`    <--- in subshell - output (but traps are reset!)
8205 		 * # echo `(trap)`         <--- in subshell in subshell - output
8207 		 * # echo `true | (trap)`  <--- in subshell in subshell in subshell - output!
10019 		/* If someone gives us an empty string: `cmd with empty output` */
10311 		/* Pass read (output) pipe end to next iteration */
10952 			 * in bash, set -o produces this output:
11389 	 *    standard output is a terminal