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BUG/MEDIUM: cli: fix "help" crashing since recent spelling fixes

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I somehow managed to re-break the "help" command in b736458bf ("MEDIUM:
cli: apply spelling fixes for known commands before listing them")
after fixing it once. A null-deref happens when checking the args
early in the processing.

No backport is needed as this was introduced in 2.4-dev12.
This commit is contained in:
Willy Tarreau 2021-03-13 12:25:43 +01:00
parent acdd47db9d
commit 9c18747823
1 changed files with 1 additions and 1 deletions
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2
src/cli.c
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@ -140,7 +140,7 @@ static char *cli_gen_usage_msg(struct appctx *appctx, char * const *args)
/* In case of partial match we'll look for the best matching entries
* starting from position <length>
*/
if (args[length] && *args[length]) {
if (args && args[length] && *args[length]) {
list_for_each_entry(kw_list, &cli_keywords.list, list) {
for (kw = &kw_list->kw[0]; kw->str_kw[0]; kw++) {
if (kw->level & ~appctx->cli_level & (ACCESS_MASTER_ONLY|ACCESS_EXPERT))