MINOR: server/checks: Move parsing of agent keywords in checks.c

Parsing of following keywords have been moved in checks.c file: agent-addr,
agent-check, agent-inter, agent-port, agent-send and no-agent-check.
diff --git a/src/checks.c b/src/checks.c
index dc09a19..f42702e 100644
--- a/src/checks.c
+++ b/src/checks.c
@@ -5969,12 +5969,161 @@
 	goto out;
 }
 
+
+/* Parse the "agent-addr" server keyword */
+static int srv_parse_agent_addr(char **args, int *cur_arg, struct proxy *curpx, struct server *srv,
+				char **errmsg)
+{
+	int err_code = 0;
+
+	if (!*(args[*cur_arg+1])) {
+		memprintf(errmsg, "'%s' expects an address as argument.", args[*cur_arg]);
+		goto error;
+	}
+	if(str2ip(args[*cur_arg+1], &srv->agent.addr) == NULL) {
+		memprintf(errmsg, "parsing agent-addr failed. Check if '%s' is correct address.", args[*cur_arg+1]);
+		goto error;
+	}
+
+  out:
+	return err_code;
+
+  error:
+	err_code |= ERR_ALERT | ERR_FATAL;
+	goto out;
+}
+
+/* Parse the "agent-check" server keyword */
+static int srv_parse_agent_check(char **args, int *cur_arg, struct proxy *curpx, struct server *srv,
+				 char **errmsg)
+{
+	srv->do_agent = 1;
+	return 0;
+}
+
+/* Parse the "agent-inter" server keyword */
+static int srv_parse_agent_inter(char **args, int *cur_arg, struct proxy *curpx, struct server *srv,
+				 char **errmsg)
+{
+	const char *err = NULL;
+	unsigned int delay;
+	int err_code = 0;
+
+	if (!*(args[*cur_arg+1])) {
+		memprintf(errmsg, "'%s' expects a delay as argument.", args[*cur_arg]);
+		goto error;
+	}
+
+	err = parse_time_err(args[*cur_arg+1], &delay, TIME_UNIT_MS);
+	if (err == PARSE_TIME_OVER) {
+		memprintf(errmsg, "timer overflow in argument <%s> to <%s> of server %s, maximum value is 2147483647 ms (~24.8 days).",
+			  args[*cur_arg+1], args[*cur_arg], srv->id);
+		goto error;
+	}
+	else if (err == PARSE_TIME_UNDER) {
+		memprintf(errmsg, "timer underflow in argument <%s> to <%s> of server %s, minimum non-null value is 1 ms.",
+			  args[*cur_arg+1], args[*cur_arg], srv->id);
+		goto error;
+	}
+	else if (err) {
+		memprintf(errmsg, "unexpected character '%c' in 'agent-inter' argument of server %s.",
+			  *err, srv->id);
+		goto error;
+	}
+	if (delay <= 0) {
+		memprintf(errmsg, "invalid value %d for argument '%s' of server %s.",
+			  delay, args[*cur_arg], srv->id);
+		goto error;
+	}
+	srv->agent.inter = delay;
+
+  out:
+	return err_code;
+
+  error:
+	err_code |= ERR_ALERT | ERR_FATAL;
+	goto out;
+}
+
+/* Parse the "agent-port" server keyword */
+static int srv_parse_agent_port(char **args, int *cur_arg, struct proxy *curpx, struct server *srv,
+				char **errmsg)
+{
+	int err_code = 0;
+
+	if (!*(args[*cur_arg+1])) {
+		memprintf(errmsg, "'%s' expects a port number as argument.", args[*cur_arg]);
+		goto error;
+	}
+
+	global.maxsock++;
+	srv->agent.port = atol(args[*cur_arg+1]);
+
+  out:
+	return err_code;
+
+  error:
+	err_code |= ERR_ALERT | ERR_FATAL;
+	goto out;
+}
+
+
+/* Parse the "agent-send" server keyword */
+static int srv_parse_agent_send(char **args, int *cur_arg, struct proxy *curpx, struct server *srv,
+				char **errmsg)
+{
+	int err_code = 0;
+
+	if (!*(args[*cur_arg+1])) {
+		memprintf(errmsg, "'%s' expects a string as argument.", args[*cur_arg]);
+		goto error;
+	}
+
+	free(srv->agent.send_string);
+	srv->agent.send_string_len = strlen(args[*cur_arg+1]);
+	srv->agent.send_string = strdup(args[*cur_arg+1]);
+	if (srv->agent.send_string == NULL) {
+		memprintf(errmsg, "out of memory.");
+		goto error;
+	}
+
+  out:
+	return err_code;
+
+  error:
+	err_code |= ERR_ALERT | ERR_FATAL;
+	goto out;
+}
+
+/* Parse the "no-agent-send" server keyword */
+static int srv_parse_no_agent_check(char **args, int *cur_arg, struct proxy *curpx, struct server *srv,
+				    char **errmsg)
+{
+	free_check(&srv->agent);
+	srv->agent.inter = 0;
+	srv->agent.port = 0;
+	srv->agent.state &= ~CHK_ST_CONFIGURED & ~CHK_ST_ENABLED & ~CHK_ST_AGENT;
+	srv->do_agent = 0;
+	return 0;
+}
+
 static struct cfg_kw_list cfg_kws = {ILH, {
         { CFG_LISTEN, "tcp-check",  proxy_parse_tcpcheck },
         { 0, NULL, NULL },
 }};
 
+static struct srv_kw_list srv_kws = { "CHK", { }, {
+	{ "agent-addr",          srv_parse_agent_addr,          1,  1 }, /* Enable an auxiliary agent check */
+	{ "agent-check",         srv_parse_agent_check,         0,  1 }, /* Enable agent checks */
+	{ "agent-inter",         srv_parse_agent_inter,         1,  1 }, /* Set the interval between two agent checks */
+	{ "agent-port",          srv_parse_agent_port,          1,  1 }, /* Set the TCP port used for agent checks. */
+	{ "agent-send",          srv_parse_agent_send,          1,  1 }, /* Set string to send to agent. */
+	{ "no-agent-check",      srv_parse_no_agent_check,      0,  1 }, /* Do not enable any auxiliary agent check */
+	{ NULL, NULL, 0 },
+}};
+
 INITCALL1(STG_REGISTER, cfg_register_keywords, &cfg_kws);
+INITCALL1(STG_REGISTER, srv_register_keywords, &srv_kws);
 
 /*
  * Local variables:
diff --git a/src/server.c b/src/server.c
index 8307ae2..fa586e8 100644
--- a/src/server.c
+++ b/src/server.c
@@ -309,14 +309,6 @@
 	return ERR_ALERT | ERR_FATAL;
 }
 
-/* Parse the "agent-check" server keyword */
-static int srv_parse_agent_check(char **args, int *cur_arg,
-                                 struct proxy *curproxy, struct server *newsrv, char **err)
-{
-	newsrv->do_agent = 1;
-	return 0;
-}
-
 /* Parse the "backup" server keyword */
 static int srv_parse_backup(char **args, int *cur_arg,
                             struct proxy *curproxy, struct server *newsrv, char **err)
@@ -529,18 +521,6 @@
 #endif
 }
 
-/* Parse the "no-agent-check" server keyword */
-static int srv_parse_no_agent_check(char **args, int *cur_arg,
-                                     struct proxy *curproxy, struct server *newsrv, char **err)
-{
-	free_check(&newsrv->agent);
-	newsrv->agent.inter = 0;
-	newsrv->agent.port = 0;
-	newsrv->agent.state &= ~CHK_ST_CONFIGURED & ~CHK_ST_ENABLED & ~CHK_ST_AGENT;
-	newsrv->do_agent = 0;
-	return 0;
-}
-
 /* Parse the "no-backup" server keyword */
 static int srv_parse_no_backup(char **args, int *cur_arg,
                                struct proxy *curproxy, struct server *newsrv, char **err)
@@ -1353,7 +1333,6 @@
  */
 static struct srv_kw_list srv_kws = { "ALL", { }, {
 	{ "addr",                srv_parse_addr,                1,  1 }, /* IP address to send health to or to probe from agent-check */
-	{ "agent-check",         srv_parse_agent_check,         0,  1 }, /* Enable an auxiliary agent check */
 	{ "backup",              srv_parse_backup,              0,  1 }, /* Flag as backup server */
 	{ "check",               srv_parse_check,               0,  1 }, /* enable health checks */
 	{ "check-send-proxy",    srv_parse_check_send_proxy,    0,  1 }, /* enable PROXY protocol for health checks */
@@ -1363,7 +1342,6 @@
 	{ "id",                  srv_parse_id,                  1,  0 }, /* set id# of server */
 	{ "max-reuse",           srv_parse_max_reuse,           1,  1 }, /* Set the max number of requests on a connection, -1 means unlimited */
 	{ "namespace",           srv_parse_namespace,           1,  1 }, /* Namespace the server socket belongs to (if supported) */
-	{ "no-agent-check",      srv_parse_no_agent_check,      0,  1 }, /* Do not enable any auxiliary agent check */
 	{ "no-backup",           srv_parse_no_backup,           0,  1 }, /* Flag as non-backup server */
 	{ "no-check",            srv_parse_no_check,            0,  1 }, /* disable health checks */
 	{ "no-check-send-proxy", srv_parse_no_check_send_proxy, 0,  1 }, /* disable PROXY protol for health checks */
@@ -2210,58 +2188,7 @@
 		}
 
 		while (*args[cur_arg]) {
-			if (!strcmp(args[cur_arg], "agent-inter")) {
-				const char *err = parse_time_err(args[cur_arg + 1], &val, TIME_UNIT_MS);
-
-				if (err == PARSE_TIME_OVER) {
-					ha_alert("parsing [%s:%d]: timer overflow in argument <%s> to <%s> of server %s, maximum value is 2147483647 ms (~24.8 days).\n",
-						 file, linenum, args[cur_arg+1], args[cur_arg], newsrv->id);
-					err_code |= ERR_ALERT | ERR_FATAL;
-					goto out;
-				}
-				else if (err == PARSE_TIME_UNDER) {
-					ha_alert("parsing [%s:%d]: timer underflow in argument <%s> to <%s> of server %s, minimum non-null value is 1 ms.\n",
-						 file, linenum, args[cur_arg+1], args[cur_arg], newsrv->id);
-					err_code |= ERR_ALERT | ERR_FATAL;
-					goto out;
-				}
-				else if (err) {
-					ha_alert("parsing [%s:%d] : unexpected character '%c' in 'agent-inter' argument of server %s.\n",
-					      file, linenum, *err, newsrv->id);
-					err_code |= ERR_ALERT | ERR_FATAL;
-					goto out;
-				}
-				if (val <= 0) {
-					ha_alert("parsing [%s:%d]: invalid value %d for argument '%s' of server %s.\n",
-					      file, linenum, val, args[cur_arg], newsrv->id);
-					err_code |= ERR_ALERT | ERR_FATAL;
-					goto out;
-				}
-				newsrv->agent.inter = val;
-				cur_arg += 2;
-			}
-			else if (!strcmp(args[cur_arg], "agent-addr")) {
-				if(str2ip(args[cur_arg + 1], &newsrv->agent.addr) == NULL) {
-					ha_alert("parsing agent-addr failed. Check if %s is correct address.\n", args[cur_arg + 1]);
-					goto out;
-				}
-
-				cur_arg += 2;
-			}
-			else if (!strcmp(args[cur_arg], "agent-port")) {
-				global.maxsock++;
-				newsrv->agent.port = atol(args[cur_arg + 1]);
-				cur_arg += 2;
-			}
-			else if (!strcmp(args[cur_arg], "agent-send")) {
-				global.maxsock++;
-				free(newsrv->agent.send_string);
-				newsrv->agent.send_string_len = strlen(args[cur_arg + 1]);
-				newsrv->agent.send_string = calloc(1, newsrv->agent.send_string_len + 1);
-				memcpy(newsrv->agent.send_string, args[cur_arg + 1], newsrv->agent.send_string_len);
-				cur_arg += 2;
-			}
-			else if (!strcmp(args[cur_arg], "init-addr")) {
+			if (!strcmp(args[cur_arg], "init-addr")) {
 				char *p, *end;
 				int done;
 				struct sockaddr_storage sa;