Mercurial > hg > toybox
view kconfig/lkc_proto.h @ 1613:96aa7ec74936 draft
Fix yet another sed bug.
The s/// command would copy the \ of substitutions before deciding what to
do with them (generally overwriting the \ with the new data). When the
substitution was A) at the very end of the new string, B) resolved to nothing,
it could leave a trailing \ that didn't belong there and didn't get overwritten
because the "copy trailing data" part that copies the original string's null
terminator already happened before the \ overwrote it.
The ghostwheel() function restarts regexes after embedded NUL bytes, but
if the string it's passed is _longer_ than the length it's told then it
gets confused (and it means we're off the end of our allocation so segfaults
are likely).
Fix: test for \ first and move the "copy byte" logic into an else case.
| author | Rob Landley <rob@landley.net> |
|---|---|
| date | Mon, 15 Dec 2014 03:34:55 -0600 |
| parents | 4d21d59f3206 |
| children |
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/* confdata.c */ P(conf_parse,void,(const char *name)); P(conf_read,int,(const char *name)); P(conf_read_simple,int,(const char *name, int)); P(conf_write,int,(const char *name)); P(conf_write_autoconf,int,(void)); /* menu.c */ P(rootmenu,struct menu,); P(menu_is_visible,bool,(struct menu *menu)); P(menu_get_prompt,const char *,(struct menu *menu)); P(menu_get_root_menu,struct menu *,(struct menu *menu)); P(menu_get_parent_menu,struct menu *,(struct menu *menu)); /* symbol.c */ P(symbol_hash,struct symbol *,[SYMBOL_HASHSIZE]); P(sym_change_count,int,); P(sym_lookup,struct symbol *,(const char *name, int isconst)); P(sym_find,struct symbol *,(const char *name)); P(sym_re_search,struct symbol **,(const char *pattern)); P(sym_type_name,const char *,(enum symbol_type type)); P(sym_calc_value,void,(struct symbol *sym)); P(sym_get_type,enum symbol_type,(struct symbol *sym)); P(sym_tristate_within_range,bool,(struct symbol *sym,tristate tri)); P(sym_set_tristate_value,bool,(struct symbol *sym,tristate tri)); P(sym_toggle_tristate_value,tristate,(struct symbol *sym)); P(sym_string_valid,bool,(struct symbol *sym, const char *newval)); P(sym_string_within_range,bool,(struct symbol *sym, const char *str)); P(sym_set_string_value,bool,(struct symbol *sym, const char *newval)); P(sym_is_changable,bool,(struct symbol *sym)); P(sym_get_choice_prop,struct property *,(struct symbol *sym)); P(sym_get_default_prop,struct property *,(struct symbol *sym)); P(sym_get_string_value,const char *,(struct symbol *sym)); P(prop_get_type_name,const char *,(enum prop_type type)); /* expr.c */ P(expr_compare_type,int,(enum expr_type t1, enum expr_type t2)); P(expr_print,void,(struct expr *e, void (*fn)(void *, struct symbol *, const char *), void *data, int prevtoken));