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patch 8.2.1539: using invalid script ID causes a crash

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Problem:    Using invalid script ID causes a crash.
Solution:   Check the script ID to be valid. (closes #6804)
This commit is contained in:
Bram Moolenaar
2020-08-29 13:39:17 +02:00
parent 423a85a11a
commit e3d4685f1f
7 changed files with 43 additions and 21 deletions
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5
src/globals.h
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@@ -297,8 +297,9 @@ EXTERN int do_profiling INIT(= PROF_NONE); // PROF_ values
# endif
EXTERN garray_T script_items INIT5(0, 0, sizeof(scriptitem_T *), 20, NULL);
# define SCRIPT_ITEM(id) (((scriptitem_T **)script_items.ga_data)[(id) - 1])
# define SCRIPT_SV(id) (SCRIPT_ITEM(id)->sn_vars)
# define SCRIPT_VARS(id) (SCRIPT_SV(id)->sv_dict.dv_hashtab)
# define SCRIPT_ID_VALID(id) ((id) > 0 && (id) <= script_items.ga_len)
# define SCRIPT_SV(id) (SCRIPT_ITEM(id)->sn_vars)
# define SCRIPT_VARS(id) (SCRIPT_SV(id)->sv_dict.dv_hashtab)
# define FUNCLINE(fp, j) ((char_u **)(fp->uf_lines.ga_data))[j]