udhcpc: add -x OPT:VAL option

function                                             old     new   delta
udhcp_str2optset                                       -     443    +443
add_client_options                                     -     160    +160
udhcpc_main                                         2753    2857    +104
packed_usage                                       26670   26689     +19
attach_option                                        380     385      +5
udhcpd_main                                         1964    1965      +1
udhcp_add_option_string                               94      86      -8
add_param_req_option                                 128       -    -128
read_opt                                             443       -    -443
------------------------------------------------------------------------------
(add/remove: 2/2 grow/shrink: 4/1 up/down: 732/-579)          Total: 153 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/networking/udhcp/files.c b/networking/udhcp/files.c
index 05a7b998a..fddda4cba 100644
--- a/networking/udhcp/files.c
+++ b/networking/udhcp/files.c
@@ -145,7 +145,7 @@ static NOINLINE void attach_option(
 }
 
 /* read a dhcp option and add it to opt_list */
-static int FAST_FUNC read_opt(const char *const_line, void *arg)
+int FAST_FUNC udhcp_str2optset(const char *const_line, void *arg)
 {
         struct option_set **opt_list = arg;
         char *opt, *val, *endptr;
@@ -292,8 +292,8 @@ static const struct config_keyword keywords[] = {
         {"pidfile",      read_str, &(server_config.pidfile),      "/var/run/udhcpd.pid"},
         {"siaddr",       read_nip, &(server_config.siaddr_nip),   "0.0.0.0"},
         /* keywords with no defaults must be last! */
-        {"option",       read_opt, &(server_config.options),      ""},
-        {"opt",          read_opt, &(server_config.options),      ""},
+        {"option",       udhcp_str2optset, &(server_config.options), ""},
+        {"opt",          udhcp_str2optset, &(server_config.options), ""},
         {"notify_file",  read_str, &(server_config.notify_file),  ""},
         {"sname",        read_str, &(server_config.sname),        ""},
         {"boot_file",    read_str, &(server_config.boot_file),    ""},