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systemd-239: fixes for the compatibility interface
[No upstream tracking] -- https://github.com/systemd/systemd/issues/9423
resolvconf-compat: use compat_main() when called as `resolvconf`,
since the interface is closer to that of `systemd-resolve`.
Use a heap allocated string to set arg_ifname, since a stack allocated
one would be lost after the function returns. (This last one broke the
case where an interface name was suffixed with a dot, such as in
`resolvconf -a tap0.dhcp`.)
Tested:
$ build/resolvconf -a nonexistent.abc </etc/resolv.conf
Unknown interface 'nonexistent': No such device
Upstream-Status: Backport [https://github.com/systemd/systemd/commit/5a01b3f35d7b6182c78b6973db8d99bdabd4f9c3]
bug: 9423
Signed-off-by: Simon Ausserlechner <simon.ausserlechner@siemens.com>
diff --git a/src/resolve/resolvconf-compat.c b/src/resolve/resolvconf-compat.c
index d7e68003e..072345894 100644
--- a/src/resolve/resolvconf-compat.c
+++ b/src/resolve/resolvconf-compat.c
@@ -53,6 +53,8 @@ static int parse_nameserver(const char *string) {
if (strv_push(&arg_set_dns, word) < 0)
return log_oom();
+
+ word = NULL;
}
return 0;
@@ -202,7 +204,7 @@ int resolvconf_parse_argv(int argc, char *argv[]) {
dot = strchr(argv[optind], '.');
if (dot) {
- iface = strndupa(argv[optind], dot - argv[optind]);
+ iface = strndup(argv[optind], dot - argv[optind]);
log_debug("Ignoring protocol specifier '%s'.", dot + 1);
} else
iface = argv[optind];
diff --git a/src/resolve/resolvectl.c b/src/resolve/resolvectl.c
index e96c13fea..e9e395e3e 100644
--- a/src/resolve/resolvectl.c
+++ b/src/resolve/resolvectl.c
@@ -3092,7 +3092,7 @@ int main(int argc, char **argv) {
goto finish;
}
- if (streq(program_invocation_short_name, "systemd-resolve"))
+ if (STR_IN_SET(program_invocation_short_name, "systemd-resolve", "resolvconf"))
r = compat_main(argc, argv, bus);
else
r = native_main(argc, argv, bus);
--
2.11.0
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