diff options
Diffstat (limited to 'shell/hush.c')
| -rw-r--r-- | shell/hush.c | 62 |
1 files changed, 37 insertions, 25 deletions
diff --git a/shell/hush.c b/shell/hush.c index 32b9087..0f0151a 100644 --- a/shell/hush.c +++ b/shell/hush.c @@ -5767,7 +5767,9 @@ static int parse_group(o_string *dest, struct parse_context *ctx, } { -#if !BB_MMU +#if BB_MMU +# define as_string NULL +#else char *as_string = NULL; #endif pipe_list = parse_stream(&as_string, input, endch); @@ -5778,9 +5780,8 @@ static int parse_group(o_string *dest, struct parse_context *ctx, /* empty ()/{} or parse error? */ if (!pipe_list || pipe_list == ERR_PTR) { /* parse_stream already emitted error msg */ -#if !BB_MMU - free(as_string); -#endif + if (!BB_MMU) + free(as_string); debug_printf_parse("parse_group return 1: " "parse_stream returned %p\n", pipe_list); return 1; @@ -5792,6 +5793,7 @@ static int parse_group(o_string *dest, struct parse_context *ctx, debug_printf_parse("end of group, remembering as:'%s'\n", command->group_as_string); #endif +#undef as_string } debug_printf_parse("parse_group return 0\n"); return 0; @@ -5893,7 +5895,7 @@ static void add_till_backquote(o_string *dest, struct in_str *input) * can contain arbitrary constructs, just like $(cmd). */ #define DOUBLE_CLOSE_CHAR_FLAG 0x80 -static void add_till_closing_paren(o_string *dest, struct in_str *input, char end_ch) +static void add_till_closing_bracket(o_string *dest, struct in_str *input, char end_ch) { char dbl = end_ch & DOUBLE_CLOSE_CHAR_FLAG; end_ch &= (DOUBLE_CLOSE_CHAR_FLAG-1); @@ -5915,7 +5917,7 @@ static void add_till_closing_paren(o_string *dest, struct in_str *input, char en o_addchr(dest, ch); if (ch == '(' || ch == '{') { ch = (ch == '(' ? ')' : '}'); - add_till_closing_paren(dest, input, ch); + add_till_closing_bracket(dest, input, ch); o_addchr(dest, ch); continue; } @@ -5952,6 +5954,7 @@ static void add_till_closing_paren(o_string *dest, struct in_str *input, char en #if BB_MMU #define handle_dollar(as_string, dest, input) \ handle_dollar(dest, input) +#define as_string NULL #endif static int handle_dollar(o_string *as_string, o_string *dest, @@ -6013,12 +6016,14 @@ static int handle_dollar(o_string *as_string, } ch |= quote_mask; - /* It's possible to just call add_till_closing_paren() at this point. + /* It's possible to just call add_till_closing_bracket() at this point. * However, this regresses some of our testsuite cases * which check invalid constructs like ${%}. * Oh well... let's check that the var name part is fine... */ while (1) { + unsigned pos; + o_addchr(dest, ch); debug_printf_parse(": '%c'\n", ch); @@ -6035,8 +6040,15 @@ static int handle_dollar(o_string *as_string, goto bad_dollar_syntax; /* Eat everything until closing '}' */ o_addchr(dest, ch); -//TODO: add nommu_addchr hack here - add_till_closing_paren(dest, input, '}'); + if (!BB_MMU) + pos = dest->length; + add_till_closing_bracket(dest, input, '}'); +#if !BB_MMU + if (as_string) { + o_addstr(as_string, dest->data + pos); + o_addchr(as_string, '}'); + } +#endif break; } } @@ -6045,9 +6057,8 @@ static int handle_dollar(o_string *as_string, } #if ENABLE_SH_MATH_SUPPORT || ENABLE_HUSH_TICK case '(': { -# if !BB_MMU - int pos; -# endif + unsigned pos; + ch = i_getch(input); nommu_addchr(as_string, ch); # if ENABLE_SH_MATH_SUPPORT @@ -6056,17 +6067,16 @@ static int handle_dollar(o_string *as_string, nommu_addchr(as_string, ch); o_addchr(dest, SPECIAL_VAR_SYMBOL); o_addchr(dest, /*quote_mask |*/ '+'); -# if !BB_MMU - pos = dest->length; -# endif - add_till_closing_paren(dest, input, ')' | DOUBLE_CLOSE_CHAR_FLAG); -# if !BB_MMU + if (!BB_MMU) + pos = dest->length; + add_till_closing_bracket(dest, input, ')' | DOUBLE_CLOSE_CHAR_FLAG); +#if !BB_MMU if (as_string) { o_addstr(as_string, dest->data + pos); o_addchr(as_string, ')'); o_addchr(as_string, ')'); } -# endif +#endif o_addchr(dest, SPECIAL_VAR_SYMBOL); break; } @@ -6074,16 +6084,15 @@ static int handle_dollar(o_string *as_string, # if ENABLE_HUSH_TICK o_addchr(dest, SPECIAL_VAR_SYMBOL); o_addchr(dest, quote_mask | '`'); -# if !BB_MMU - pos = dest->length; -# endif - add_till_closing_paren(dest, input, ')'); -# if !BB_MMU + if (!BB_MMU) + pos = dest->length; + add_till_closing_bracket(dest, input, ')'); +#if !BB_MMU if (as_string) { o_addstr(as_string, dest->data + pos); o_addchr(as_string, ')'); } -# endif +#endif o_addchr(dest, SPECIAL_VAR_SYMBOL); # endif break; @@ -6108,11 +6117,13 @@ static int handle_dollar(o_string *as_string, } debug_printf_parse("handle_dollar return 0\n"); return 0; +#undef as_string } #if BB_MMU #define parse_stream_dquoted(as_string, dest, input, dquote_end) \ parse_stream_dquoted(dest, input, dquote_end) +#define as_string NULL #endif static int parse_stream_dquoted(o_string *as_string, o_string *dest, @@ -6176,7 +6187,7 @@ static int parse_stream_dquoted(o_string *as_string, } #if ENABLE_HUSH_TICK if (ch == '`') { - //int pos = dest->length; + //unsigned pos = dest->length; o_addchr(dest, SPECIAL_VAR_SYMBOL); o_addchr(dest, 0x80 | '`'); add_till_backquote(dest, input); @@ -6194,6 +6205,7 @@ static int parse_stream_dquoted(o_string *as_string, dest->o_assignment = DEFINITELY_ASSIGNMENT; } goto again; +#undef as_string } /* |