diff options
Diffstat (limited to 'package/busybox/busybox-1.18.4/busybox-1.18.4-hush.patch')
| -rw-r--r-- | package/busybox/busybox-1.18.4/busybox-1.18.4-hush.patch | 160 |
1 files changed, 160 insertions, 0 deletions
diff --git a/package/busybox/busybox-1.18.4/busybox-1.18.4-hush.patch b/package/busybox/busybox-1.18.4/busybox-1.18.4-hush.patch new file mode 100644 index 000000000..4e995afee --- /dev/null +++ b/package/busybox/busybox-1.18.4/busybox-1.18.4-hush.patch @@ -0,0 +1,160 @@ +--- busybox-1.18.4/shell/hush.c ++++ busybox-1.18.4-hush/shell/hush.c +@@ -427,6 +427,15 @@ enum { + /* Used for initialization: o_string foo = NULL_O_STRING; */ + #define NULL_O_STRING { NULL } + ++#ifndef debug_printf_parse ++static const char *const assignment_flag[] = { ++ "MAYBE_ASSIGNMENT", ++ "DEFINITELY_ASSIGNMENT", ++ "NOT_ASSIGNMENT", ++ "WORD_IS_KEYWORD", ++}; ++#endif ++ + /* I can almost use ordinary FILE*. Is open_memstream() universally + * available? Where is it documented? */ + typedef struct in_str { +@@ -2885,24 +2894,24 @@ static const struct reserved_combo* matc + */ + static const struct reserved_combo reserved_list[] = { + # if ENABLE_HUSH_IF +- { "!", RES_NONE, NOT_ASSIGNMENT , 0 }, +- { "if", RES_IF, WORD_IS_KEYWORD, FLAG_THEN | FLAG_START }, +- { "then", RES_THEN, WORD_IS_KEYWORD, FLAG_ELIF | FLAG_ELSE | FLAG_FI }, +- { "elif", RES_ELIF, WORD_IS_KEYWORD, FLAG_THEN }, +- { "else", RES_ELSE, WORD_IS_KEYWORD, FLAG_FI }, +- { "fi", RES_FI, NOT_ASSIGNMENT , FLAG_END }, ++ { "!", RES_NONE, NOT_ASSIGNMENT , 0 }, ++ { "if", RES_IF, MAYBE_ASSIGNMENT, FLAG_THEN | FLAG_START }, ++ { "then", RES_THEN, MAYBE_ASSIGNMENT, FLAG_ELIF | FLAG_ELSE | FLAG_FI }, ++ { "elif", RES_ELIF, MAYBE_ASSIGNMENT, FLAG_THEN }, ++ { "else", RES_ELSE, MAYBE_ASSIGNMENT, FLAG_FI }, ++ { "fi", RES_FI, NOT_ASSIGNMENT , FLAG_END }, + # endif + # if ENABLE_HUSH_LOOPS +- { "for", RES_FOR, NOT_ASSIGNMENT , FLAG_IN | FLAG_DO | FLAG_START }, +- { "while", RES_WHILE, WORD_IS_KEYWORD, FLAG_DO | FLAG_START }, +- { "until", RES_UNTIL, WORD_IS_KEYWORD, FLAG_DO | FLAG_START }, +- { "in", RES_IN, NOT_ASSIGNMENT , FLAG_DO }, +- { "do", RES_DO, WORD_IS_KEYWORD, FLAG_DONE }, +- { "done", RES_DONE, NOT_ASSIGNMENT , FLAG_END }, ++ { "for", RES_FOR, NOT_ASSIGNMENT , FLAG_IN | FLAG_DO | FLAG_START }, ++ { "while", RES_WHILE, MAYBE_ASSIGNMENT, FLAG_DO | FLAG_START }, ++ { "until", RES_UNTIL, MAYBE_ASSIGNMENT, FLAG_DO | FLAG_START }, ++ { "in", RES_IN, NOT_ASSIGNMENT , FLAG_DO }, ++ { "do", RES_DO, MAYBE_ASSIGNMENT, FLAG_DONE }, ++ { "done", RES_DONE, NOT_ASSIGNMENT , FLAG_END }, + # endif + # if ENABLE_HUSH_CASE +- { "case", RES_CASE, NOT_ASSIGNMENT , FLAG_MATCH | FLAG_START }, +- { "esac", RES_ESAC, NOT_ASSIGNMENT , FLAG_END }, ++ { "case", RES_CASE, NOT_ASSIGNMENT , FLAG_MATCH | FLAG_START }, ++ { "esac", RES_ESAC, NOT_ASSIGNMENT , FLAG_END }, + # endif + }; + const struct reserved_combo *r; +@@ -2968,6 +2977,7 @@ static int reserved_word(o_string *word, + ctx->ctx_res_w = r->res; + ctx->old_flag = r->flag; + word->o_assignment = r->assignment_flag; ++ debug_printf_parse("word->o_assignment='%s'\n", assignment_flag[word->o_assignment]); + + if (ctx->old_flag & FLAG_END) { + struct parse_context *old; +@@ -3034,18 +3044,6 @@ static int done_word(o_string *word, str + debug_printf_parse("word stored in rd_filename: '%s'\n", word->data); + ctx->pending_redirect = NULL; + } else { +- /* If this word wasn't an assignment, next ones definitely +- * can't be assignments. Even if they look like ones. */ +- if (word->o_assignment != DEFINITELY_ASSIGNMENT +- && word->o_assignment != WORD_IS_KEYWORD +- ) { +- word->o_assignment = NOT_ASSIGNMENT; +- } else { +- if (word->o_assignment == DEFINITELY_ASSIGNMENT) +- command->assignment_cnt++; +- word->o_assignment = MAYBE_ASSIGNMENT; +- } +- + #if HAS_KEYWORDS + # if ENABLE_HUSH_CASE + if (ctx->ctx_dsemicolon +@@ -3065,8 +3063,9 @@ static int done_word(o_string *word, str + && ctx->ctx_res_w != RES_CASE + # endif + ) { +- debug_printf_parse("checking '%s' for reserved-ness\n", word->data); +- if (reserved_word(word, ctx)) { ++ int reserved = reserved_word(word, ctx); ++ debug_printf_parse("checking for reserved-ness: %d\n", reserved); ++ if (reserved) { + o_reset_to_empty_unquoted(word); + debug_printf_parse("done_word return %d\n", + (ctx->ctx_res_w == RES_SNTX)); +@@ -3087,6 +3086,23 @@ static int done_word(o_string *word, str + "groups and arglists don't mix\n"); + return 1; + } ++ ++ /* If this word wasn't an assignment, next ones definitely ++ * can't be assignments. Even if they look like ones. */ ++ if (word->o_assignment != DEFINITELY_ASSIGNMENT ++ && word->o_assignment != WORD_IS_KEYWORD ++ ) { ++ word->o_assignment = NOT_ASSIGNMENT; ++ } else { ++ if (word->o_assignment == DEFINITELY_ASSIGNMENT) { ++ command->assignment_cnt++; ++ debug_printf_parse("++assignment_cnt=%d\n", command->assignment_cnt); ++ } ++ debug_printf_parse("word->o_assignment was:'%s'\n", assignment_flag[word->o_assignment]); ++ word->o_assignment = MAYBE_ASSIGNMENT; ++ } ++ debug_printf_parse("word->o_assignment='%s'\n", assignment_flag[word->o_assignment]); ++ + if (word->has_quoted_part + /* optimization: and if it's ("" or '') or ($v... or `cmd`...): */ + && (word->data[0] == '\0' || word->data[0] == SPECIAL_VAR_SYMBOL) +@@ -4105,6 +4121,7 @@ static struct pipe *parse_stream(char ** + && is_well_formed_var_name(dest.data, '=') + ) { + dest.o_assignment = DEFINITELY_ASSIGNMENT; ++ debug_printf_parse("dest.o_assignment='%s'\n", assignment_flag[dest.o_assignment]); + } + continue; + } +@@ -4154,6 +4171,7 @@ static struct pipe *parse_stream(char ** + heredoc_cnt = 0; + } + dest.o_assignment = MAYBE_ASSIGNMENT; ++ debug_printf_parse("dest.o_assignment='%s'\n", assignment_flag[dest.o_assignment]); + ch = ';'; + /* note: if (is_blank) continue; + * will still trigger for us */ +@@ -4203,6 +4221,7 @@ static struct pipe *parse_stream(char ** + } + done_pipe(&ctx, PIPE_SEQ); + dest.o_assignment = MAYBE_ASSIGNMENT; ++ debug_printf_parse("dest.o_assignment='%s'\n", assignment_flag[dest.o_assignment]); + /* Do we sit outside of any if's, loops or case's? */ + if (!HAS_KEYWORDS + IF_HAS_KEYWORDS(|| (ctx.ctx_res_w == RES_NONE && ctx.old_flag == 0)) +@@ -4309,6 +4328,7 @@ static struct pipe *parse_stream(char ** + /* ch is a special char and thus this word + * cannot be an assignment */ + dest.o_assignment = NOT_ASSIGNMENT; ++ debug_printf_parse("dest.o_assignment='%s'\n", assignment_flag[dest.o_assignment]); + } + + /* Note: nommu_addchr(&ctx.as_string, ch) is already done */ +@@ -4406,6 +4426,7 @@ static struct pipe *parse_stream(char ** + /* We just finished a cmd. New one may start + * with an assignment */ + dest.o_assignment = MAYBE_ASSIGNMENT; ++ debug_printf_parse("dest.o_assignment='%s'\n", assignment_flag[dest.o_assignment]); + break; + case '&': + if (done_word(&dest, &ctx)) { |