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MINOR: cli: add a function to look up a CLI service description

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This function will be useful to check if the keyword is already registered.
Also add a define for the max number of args.

This will be needed by a next patch to fix a bug and will have to be
backported.
This commit is contained in:
Thierry Fournier 2020-11-28 20:10:08 +01:00 committed by Willy Tarreau
parent 87e539906b
commit a51a1fd174
3 changed files with 37 additions and 1 deletions
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4
include/haproxy/cli-t.h
View File

@ -42,6 +42,8 @@
#define APPCTX_CLI_ST1_PAYLOAD (1 << 1)
#define APPCTX_CLI_ST1_NOLF (1 << 2)
#define CLI_PREFIX_KW_NB 5
/* CLI states */
enum {
CLI_ST_INIT = 0, /* initial state, must leave to zero ! */
@ -66,7 +68,7 @@ enum {
struct cli_kw {
const char *str_kw[5]; /* keywords ended by NULL, limited to 5
const char *str_kw[CLI_PREFIX_KW_NB]; /* keywords ended by NULL, limited to CLI_PREFIX_KW_NB
separated keywords combination */
const char *usage; /* usage message */
int (*parse)(char **args, char *payload, struct appctx *appctx, void *private);

1
include/haproxy/cli.h
View File

@ -31,6 +31,7 @@
void cli_register_kw(struct cli_kw_list *kw_list);
struct cli_kw* cli_find_kw_exact(char **args);
int cli_has_level(struct appctx *appctx, int level);

33
src/cli.c
View File

@ -182,6 +182,39 @@ struct cli_kw* cli_find_kw(char **args)
return NULL;
}
struct cli_kw* cli_find_kw_exact(char **args)
{
struct cli_kw_list *kw_list;
int found = 0;
int i;
int j;
if (LIST_ISEMPTY(&cli_keywords.list))
return NULL;
list_for_each_entry(kw_list, &cli_keywords.list, list) {
for (i = 0; kw_list->kw[i].str_kw[0]; i++) {
found = 1;
for (j = 0; j < CLI_PREFIX_KW_NB; j++) {
if (args[j] == NULL && kw_list->kw[i].str_kw[j] == NULL) {
break;
}
if (args[j] == NULL || kw_list->kw[i].str_kw[j] == NULL) {
found = 0;
break;
}
if (strcmp(args[j], kw_list->kw[i].str_kw[j]) != 0) {
found = 0;
break;
}
}
if (found)
return &kw_list->kw[i];
}
}
return NULL;
}
void cli_register_kw(struct cli_kw_list *kw_list)
{
LIST_ADDQ(&cli_keywords.list, &kw_list->list);