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@@ -1,259 +0,0 @@
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-diff -urpN busybox-1.18.1/shell/hush.c busybox-1.18.1-hush/shell/hush.c
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---- busybox-1.18.1/shell/hush.c 2010-12-21 05:31:04.000000000 +0100
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-+++ busybox-1.18.1-hush/shell/hush.c 2011-01-07 14:59:19.649956156 +0100
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-@@ -913,7 +913,7 @@ static const struct built_in_command blt
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- */
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- #if HUSH_DEBUG
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- /* prevent disasters with G.debug_indent < 0 */
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--# define indent() fprintf(stderr, "%*s", (G.debug_indent * 2) & 0xff, "")
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-+# define indent() fdprintf(2, "%*s", (G.debug_indent * 2) & 0xff, "")
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- # define debug_enter() (G.debug_indent++)
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- # define debug_leave() (G.debug_indent--)
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- #else
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-@@ -923,56 +923,56 @@ static const struct built_in_command blt
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- #endif
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-
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- #ifndef debug_printf
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--# define debug_printf(...) (indent(), fprintf(stderr, __VA_ARGS__))
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-+# define debug_printf(...) (indent(), fdprintf(2, __VA_ARGS__))
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- #endif
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-
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- #ifndef debug_printf_parse
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--# define debug_printf_parse(...) (indent(), fprintf(stderr, __VA_ARGS__))
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-+# define debug_printf_parse(...) (indent(), fdprintf(2, __VA_ARGS__))
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- #endif
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-
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- #ifndef debug_printf_exec
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--#define debug_printf_exec(...) (indent(), fprintf(stderr, __VA_ARGS__))
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-+#define debug_printf_exec(...) (indent(), fdprintf(2, __VA_ARGS__))
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- #endif
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-
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- #ifndef debug_printf_env
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--# define debug_printf_env(...) (indent(), fprintf(stderr, __VA_ARGS__))
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-+# define debug_printf_env(...) (indent(), fdprintf(2, __VA_ARGS__))
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- #endif
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-
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- #ifndef debug_printf_jobs
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--# define debug_printf_jobs(...) (indent(), fprintf(stderr, __VA_ARGS__))
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-+# define debug_printf_jobs(...) (indent(), fdprintf(2, __VA_ARGS__))
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- # define DEBUG_JOBS 1
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- #else
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- # define DEBUG_JOBS 0
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- #endif
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-
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- #ifndef debug_printf_expand
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--# define debug_printf_expand(...) (indent(), fprintf(stderr, __VA_ARGS__))
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-+# define debug_printf_expand(...) (indent(), fdprintf(2, __VA_ARGS__))
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- # define DEBUG_EXPAND 1
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- #else
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- # define DEBUG_EXPAND 0
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- #endif
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-
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- #ifndef debug_printf_varexp
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--# define debug_printf_varexp(...) (indent(), fprintf(stderr, __VA_ARGS__))
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-+# define debug_printf_varexp(...) (indent(), fdprintf(2, __VA_ARGS__))
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- #endif
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-
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- #ifndef debug_printf_glob
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--# define debug_printf_glob(...) (indent(), fprintf(stderr, __VA_ARGS__))
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-+# define debug_printf_glob(...) (indent(), fdprintf(2, __VA_ARGS__))
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- # define DEBUG_GLOB 1
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- #else
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- # define DEBUG_GLOB 0
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- #endif
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-
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- #ifndef debug_printf_list
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--# define debug_printf_list(...) (indent(), fprintf(stderr, __VA_ARGS__))
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-+# define debug_printf_list(...) (indent(), fdprintf(2, __VA_ARGS__))
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- #endif
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-
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- #ifndef debug_printf_subst
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--# define debug_printf_subst(...) (indent(), fprintf(stderr, __VA_ARGS__))
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-+# define debug_printf_subst(...) (indent(), fdprintf(2, __VA_ARGS__))
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- #endif
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-
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- #ifndef debug_printf_clean
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--# define debug_printf_clean(...) (indent(), fprintf(stderr, __VA_ARGS__))
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-+# define debug_printf_clean(...) (indent(), fdprintf(2, __VA_ARGS__))
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- # define DEBUG_CLEAN 1
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- #else
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- # define DEBUG_CLEAN 0
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-@@ -982,9 +982,9 @@ static const struct built_in_command blt
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- static void debug_print_strings(const char *prefix, char **vv)
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- {
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- indent();
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-- fprintf(stderr, "%s:\n", prefix);
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-+ fdprintf(2, "%s:\n", prefix);
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- while (*vv)
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-- fprintf(stderr, " '%s'\n", *vv++);
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-+ fdprintf(2, " '%s'\n", *vv++);
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- }
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- #else
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- # define debug_print_strings(prefix, vv) ((void)0)
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-@@ -1416,6 +1416,22 @@ static void hush_exit(int exitcode)
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- builtin_eval(argv);
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- }
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-
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-+#if ENABLE_FEATURE_CLEAN_UP
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-+ {
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-+ struct variable *cur_var;
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-+ if (G.cwd != bb_msg_unknown)
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-+ free((char*)G.cwd);
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-+ cur_var = G.top_var;
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-+ while (cur_var) {
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-+ struct variable *tmp = cur_var;
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-+ if (!cur_var->max_len)
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-+ free(cur_var->varstr);
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-+ cur_var = cur_var->next;
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-+ free(tmp);
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-+ }
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-+ }
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-+#endif
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-+
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- #if ENABLE_HUSH_JOB
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- fflush_all();
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- sigexit(- (exitcode & 0xff));
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-@@ -2158,22 +2174,22 @@ static void debug_print_list(const char
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- int i = 0;
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-
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- indent();
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-- fprintf(stderr, "%s: list:%p n:%d string_start:%d length:%d maxlen:%d glob:%d quoted:%d escape:%d\n",
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-+ fdprintf(2, "%s: list:%p n:%d string_start:%d length:%d maxlen:%d glob:%d quoted:%d escape:%d\n",
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- prefix, list, n, string_start, o->length, o->maxlen,
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- !!(o->o_expflags & EXP_FLAG_GLOB),
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- o->has_quoted_part,
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- !!(o->o_expflags & EXP_FLAG_ESC_GLOB_CHARS));
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- while (i < n) {
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- indent();
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-- fprintf(stderr, " list[%d]=%d '%s' %p\n", i, (int)list[i],
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-- o->data + (int)list[i] + string_start,
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-- o->data + (int)list[i] + string_start);
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-+ fdprintf(2, " list[%d]=%d '%s' %p\n", i, (int)(uintptr_t)list[i],
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-+ o->data + (int)(uintptr_t)list[i] + string_start,
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-+ o->data + (int)(uintptr_t)list[i] + string_start);
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- i++;
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- }
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- if (n) {
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-- const char *p = o->data + (int)list[n - 1] + string_start;
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-+ const char *p = o->data + (int)(uintptr_t)list[n - 1] + string_start;
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- indent();
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-- fprintf(stderr, " total_sz:%ld\n", (long)((p + strlen(p) + 1) - o->data));
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-+ fdprintf(2, " total_sz:%ld\n", (long)((p + strlen(p) + 1) - o->data));
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- }
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- }
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- #else
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-@@ -2672,18 +2688,18 @@ static void debug_print_tree(struct pipe
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-
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- pin = 0;
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- while (pi) {
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-- fprintf(stderr, "%*spipe %d res_word=%s followup=%d %s\n", lvl*2, "",
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-+ fdprintf(2, "%*spipe %d res_word=%s followup=%d %s\n", lvl*2, "",
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- pin, RES[pi->res_word], pi->followup, PIPE[pi->followup]);
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- prn = 0;
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- while (prn < pi->num_cmds) {
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- struct command *command = &pi->cmds[prn];
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- char **argv = command->argv;
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-
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-- fprintf(stderr, "%*s cmd %d assignment_cnt:%d",
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-+ fdprintf(2, "%*s cmd %d assignment_cnt:%d",
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- lvl*2, "", prn,
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- command->assignment_cnt);
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- if (command->group) {
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-- fprintf(stderr, " group %s: (argv=%p)%s%s\n",
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-+ fdprintf(2, " group %s: (argv=%p)%s%s\n",
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- CMDTYPE[command->cmd_type],
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- argv
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- # if !BB_MMU
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-@@ -2697,10 +2713,10 @@ static void debug_print_tree(struct pipe
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- continue;
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- }
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- if (argv) while (*argv) {
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-- fprintf(stderr, " '%s'", *argv);
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-+ fdprintf(2, " '%s'", *argv);
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- argv++;
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- }
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-- fprintf(stderr, "\n");
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-+ fdprintf(2, "\n");
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- prn++;
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- }
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- pi = pi->next;
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-@@ -4106,7 +4122,16 @@ static struct pipe *parse_stream(char **
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- if (IS_NULL_CMD(ctx.command)
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- && dest.length == 0 && !dest.has_quoted_part
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- ) {
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-- continue;
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-+ /* This newline can be ignored. But...
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-+ * without the below check, interactive shell
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-+ * will ignore even lines with bare <newline>,
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-+ * and show the continuation prompt:
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-+ * ps1_prompt$ <enter>
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-+ * ps2> _ <=== wrong prompt, should be ps1
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-+ */
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-+ struct pipe *pi = ctx.list_head;
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-+ if (pi->num_cmds != 0)
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-+ continue;
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- }
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- /* Treat newline as a command separator. */
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- done_pipe(&ctx, PIPE_SEQ);
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-@@ -7445,7 +7470,7 @@ int hush_main(int argc, char **argv)
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- unsigned builtin_argc;
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- char **e;
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- struct variable *cur_var;
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-- struct variable shell_ver;
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-+ struct variable *shell_ver;
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-
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- INIT_G();
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- if (EXIT_SUCCESS) /* if EXIT_SUCCESS == 0, it is already done */
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-@@ -7454,17 +7479,17 @@ int hush_main(int argc, char **argv)
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- G.argv0_for_re_execing = argv[0];
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- #endif
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- /* Deal with HUSH_VERSION */
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-- memset(&shell_ver, 0, sizeof(shell_ver));
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-- shell_ver.flg_export = 1;
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-- shell_ver.flg_read_only = 1;
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-+ shell_ver = xzalloc(sizeof(*shell_ver));
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-+ shell_ver->flg_export = 1;
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-+ shell_ver->flg_read_only = 1;
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- /* Code which handles ${var<op>...} needs writable values for all variables,
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- * therefore we xstrdup: */
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-- shell_ver.varstr = xstrdup(hush_version_str),
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-- G.top_var = &shell_ver;
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-+ shell_ver->varstr = xstrdup(hush_version_str);
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- /* Create shell local variables from the values
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- * currently living in the environment */
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- debug_printf_env("unsetenv '%s'\n", "HUSH_VERSION");
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- unsetenv("HUSH_VERSION"); /* in case it exists in initial env */
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-+ G.top_var = shell_ver;
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- cur_var = G.top_var;
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- e = environ;
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- if (e) while (*e) {
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-@@ -7479,8 +7504,8 @@ int hush_main(int argc, char **argv)
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- e++;
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- }
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- /* (Re)insert HUSH_VERSION into env (AFTER we scanned the env!) */
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-- debug_printf_env("putenv '%s'\n", shell_ver.varstr);
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-- putenv(shell_ver.varstr);
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-+ debug_printf_env("putenv '%s'\n", shell_ver->varstr);
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-+ putenv(shell_ver->varstr);
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-
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- /* Export PWD */
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- set_pwd_var(/*exp:*/ 1);
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-@@ -7840,18 +7865,6 @@ int hush_main(int argc, char **argv)
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- parse_and_run_file(stdin);
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-
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- final_return:
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--#if ENABLE_FEATURE_CLEAN_UP
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-- if (G.cwd != bb_msg_unknown)
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-- free((char*)G.cwd);
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-- cur_var = G.top_var->next;
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-- while (cur_var) {
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-- struct variable *tmp = cur_var;
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-- if (!cur_var->max_len)
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-- free(cur_var->varstr);
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-- cur_var = cur_var->next;
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-- free(tmp);
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-- }
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--#endif
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- hush_exit(G.last_exitcode);
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- }
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-
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