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cli: limit number of shown addresses/routes in nmcli overview

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If you add a large number of addresses/routes, then the output of
`nmcli` is unusable. It also doesn't seem too useful.

Limit the number to show up to 10 addresses and 10 routes.

If there are more than 10 addresses, then print an 11th line with

    inet4 ... N more

Actually, if there are exactly 11 addresses, then don't waste an extra
line to print "1 more". Instead, still print the 11th address. Same for
routes.
This commit is contained in:
Thomas Haller 2023-11-20 11:14:46 +01:00
parent 39d900593b
commit a7a36cde83
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GPG key ID: 29C2366E4DFC5728
2 changed files with 17 additions and 0 deletions
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NEWS
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@ -15,6 +15,7 @@ Overview of changes since NetworkManager-1.44
* Honor udev property ID_NET_MANAGED_BY to only manage an interface
when set to "org.freedesktop.NetworkManager".
* Drop build support with Python2. Python3 is now required.
* nmcli: limit number of printed addresses/routes in `nmcli` overview to 10.
=============================================
NetworkManager-1.44

16
src/nmcli/general.c
View file

@ -1412,6 +1412,8 @@ static void
ac_overview(NmCli *nmc, NMActiveConnection *ac)
{
nm_auto_str_buf NMStrBuf str = NM_STR_BUF_INIT_A(NM_UTILS_GET_NEXT_REALLOC_SIZE_488, FALSE);
const guint MAX_ADDRESSES = 10;
const guint MAX_ROUTES = 10;
int IS_IPv4;
if (nm_active_connection_get_controller(ac)) {
@ -1451,6 +1453,15 @@ ac_overview(NmCli *nmc, NMActiveConnection *ac)
IS_IPv4 ? '4' : '6',
nm_ip_address_get_address(a),
nm_ip_address_get_prefix(a));
if (i >= MAX_ADDRESSES - 1u && p->len - i > 2u) {
/* Print always at least MAX_ADDRESSES fully.
* If there are MAX_ADDRESSES+1 addresses, print them all fully.
* If there are more addresses, print MAX_ADDRESSES fully, and a
* "N more" line. */
nmc_print("\tinet%c ... %u more\n", IS_IPv4 ? '4' : '6', p->len - i - 1u);
break;
}
}
p = nm_ip_config_get_routes(ip);
@ -1461,6 +1472,11 @@ ac_overview(NmCli *nmc, NMActiveConnection *ac)
_nm_ip_route_to_string(a, &str);
nmc_print("\troute%c %s\n", IS_IPv4 ? '4' : '6', nm_str_buf_get_str(&str));
if (i >= MAX_ROUTES - 1u && p->len - i > 2u) {
nmc_print("\troute%c ... %u more\n", IS_IPv4 ? '4' : '6', p->len - i - 1u);
break;
}
}
}
}