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wpa_cli: Add optional argument for the help command

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"help <cmd>" can now be used to print the usage text for the
specified command (or set of commands matching the prefix).

Signed-hostap: Jouni Malinen <j@w1.fi>
This commit is contained in:
Jouni Malinen 2012-08-26 21:30:06 +03:00
parent b49039bda9
commit 2af4d404a8
1 changed files with 26 additions and 8 deletions
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34
wpa_supplicant/wpa_cli.c
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@ -92,10 +92,11 @@ static DEFINE_DL_LIST(p2p_peers); /* struct cli_txt_entry */
static DEFINE_DL_LIST(p2p_groups); /* struct cli_txt_entry */
static void print_help(void);
static void print_help(const char *cmd);
static void wpa_cli_mon_receive(int sock, void *eloop_ctx, void *sock_ctx);
static void wpa_cli_close_connection(void);
static char * wpa_cli_get_default_ifname(void);
static char ** wpa_list_cmd_list(void);
static void usage(void)
@ -112,7 +113,7 @@ static void usage(void)
" -B = run a daemon in the background\n"
" default path: " CONFIG_CTRL_IFACE_DIR "\n"
" default interface: first interface found in socket path\n");
print_help();
print_help(NULL);
}
@ -527,11 +528,26 @@ static int wpa_cli_cmd_pmksa(struct wpa_ctrl *ctrl, int argc, char *argv[])
static int wpa_cli_cmd_help(struct wpa_ctrl *ctrl, int argc, char *argv[])
{
print_help();
print_help(argc > 0 ? argv[0] : NULL);
return 0;
}
static char ** wpa_cli_complete_help(const char *str, int pos)
{
int arg = get_cmd_arg_num(str, pos);
char **res = NULL;
switch (arg) {
case 1:
res = wpa_list_cmd_list();
break;
}
return res;
}
static int wpa_cli_cmd_license(struct wpa_ctrl *ctrl, int argc, char *argv[])
{
printf("%s\n\n%s\n", wpa_cli_version, wpa_cli_full_license);
@ -2131,9 +2147,9 @@ static struct wpa_cli_cmd wpa_cli_commands[] = {
{ "mib", wpa_cli_cmd_mib, NULL,
cli_cmd_flag_none,
"= get MIB variables (dot1x, dot11)" },
{ "help", wpa_cli_cmd_help, NULL,
{ "help", wpa_cli_cmd_help, wpa_cli_complete_help,
cli_cmd_flag_none,
"= show this usage help" },
"[command] = show usage help" },
{ "interface", wpa_cli_cmd_interface, NULL,
cli_cmd_flag_none,
"[ifname] = show interfaces/select interface" },
@ -2533,12 +2549,14 @@ static void print_cmd_help(struct wpa_cli_cmd *cmd, const char *pad)
}
static void print_help(void)
static void print_help(const char *cmd)
{
int n;
printf("commands:\n");
for (n = 0; wpa_cli_commands[n].cmd; n++)
print_cmd_help(&wpa_cli_commands[n], " ");
for (n = 0; wpa_cli_commands[n].cmd; n++) {
if (cmd == NULL || str_starts(wpa_cli_commands[n].cmd, cmd))
print_cmd_help(&wpa_cli_commands[n], " ");
}
}