Minor refactor, reuse MATCH_CMD() from conf.c in service_register()

When adding a new service option recently, I copy-pasted and forgot to
update the length argument to strncasecmp(), so it was time to fix that
once and for all.

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>

src/conf.c

@@ -48,8 +48,6 @@
 #include "util.h"
 
 #define BOOTSTRAP (runlevel == 0)
-#define MATCH_CMD(l, c, x) \
-	(!strncasecmp(l, c, strlen(c)) && (x = (l) + strlen(c)))
 
 int logfile_size_max = 200000;	/* 200 kB */
 int logfile_count_max = 5;

src/private.h

@@ -29,6 +29,9 @@
 #include "plugin.h"
 
 #define SERVICE_INTERVAL_DEFAULT 300000 /* 5 mins */
+#define MATCH_CMD(l, c, x) \
+	(!strncasecmp(l, c, strlen(c)) && (x = (l) + strlen(c)))
+
 extern int service_interval;
 
 int       api_init         (uev_ctx_t *ctx);

src/service.c

@@ -1144,7 +1144,6 @@ static void parse_cmdline_args(svc_t *svc, char *cmd)
 	svc->args_dirty = (diff > 0);
 }
 
-
 /**
  * service_register - Register service, task or run commands
  * @type:   %SVC_TYPE_SERVICE(0), %SVC_TYPE_TASK(1), %SVC_TYPE_RUN(2)
@@ -1253,6 +1252,8 @@ int service_register(int type, char *cfg, struct rlimit rlimit[], char *file)
 	}
 
 	while (cmd) {
+		char *arg;
+
 		if (type == SVC_TYPE_TTY && cmd[0] == '@')
 			break;		/* @console */
 
@@ -1264,46 +1265,48 @@ int service_register(int type, char *cfg, struct rlimit rlimit[], char *file)
 			cond = &cmd[1];
 		else if (cmd[0] == ':')	/* :ID */
 			id = &cmd[1];
-		else if (!strncasecmp(cmd, "log", 3))
+		else if (MATCH_CMD(cmd, "log", arg))
 			log = cmd;
-		else if (!strncasecmp(cmd, "pid", 3))
+		else if (MATCH_CMD(cmd, "pid", arg))
 			pid = cmd;
-		else if (!strncasecmp(cmd, "name:", 5))
+		else if (MATCH_CMD(cmd, "name:", arg))
 			name = cmd;
-		else if (!strncasecmp(cmd, "type:forking", 10))
+		else if (MATCH_CMD(cmd, "type:forking", arg))
 			forking = 1;
-		else if (!strncasecmp(cmd, "manual:yes", 10))
+		else if (MATCH_CMD(cmd, "manual:yes", arg))
 			manual = 1;
-		else if (!strncasecmp(cmd, "restart:always", 14))
+		else if (MATCH_CMD(cmd, "restart:", arg)) {
-			restart_max = -1;
+			if (MATCH_CMD(arg, "always", arg))
-		else if (!strncasecmp(cmd, "restart:", 8))
+				restart_max = -1;
-			restart_max = atoi(&cmd[8]);
+			else
-		else if (!strncasecmp(cmd, "restarttmo:", 11)) /* compat alias */
+				restart_max = atoi(arg);
-			restart_tmo = atoi(&cmd[11]) * 1000;
+		}
-		else if (!strncasecmp(cmd, "restart_sec:", 12))
+		else if (MATCH_CMD(cmd, "restarttmo:", arg)) /* compat alias */
-			restart_tmo = atoi(&cmd[12]) * 1000;
+			restart_tmo = atoi(arg) * 1000;
-		else if (!strncasecmp(cmd, "norestart", 9))
+		else if (MATCH_CMD(cmd, "restart_sec:", arg))
+			restart_tmo = atoi(arg) * 1000;
+		else if (MATCH_CMD(cmd, "norestart", arg))
 			restart_max = 0;
-		else if (!strncasecmp(cmd, "oncrash:", 8)) {
+		else if (MATCH_CMD(cmd, "oncrash:", arg)) {
-			if (!strncasecmp(&cmd[8], "reboot", 6))
+			if (MATCH_CMD(arg, "reboot", arg))
 				oncrash_action = SVC_ONCRASH_REBOOT;
 		}
-		else if (!strncasecmp(cmd, "respawn", 7))
+		else if (MATCH_CMD(cmd, "respawn", arg))
 			respawn = 1;
-		else if (!strncasecmp(cmd, "halt:", 5))
+		else if (MATCH_CMD(cmd, "halt:", arg))
-			halt = &cmd[5];
+			halt = arg;
-		else if (!strncasecmp(cmd, "kill:", 5))
+		else if (MATCH_CMD(cmd, "kill:", arg))
-			delay = &cmd[5];
+			delay = arg;
-		else if (!strncasecmp(cmd, "pre:", 4))
+		else if (MATCH_CMD(cmd, "pre:", arg))
-			pre_script = &cmd[4];
+			pre_script = arg;
-		else if (!strncasecmp(cmd, "post:", 5))
+		else if (MATCH_CMD(cmd, "post:", arg))
-			post_script = &cmd[5];
+			post_script = arg;
-		else if (!strncasecmp(cmd, "env:", 4))
+		else if (MATCH_CMD(cmd, "env:", arg))
-			env = &cmd[4];
+			env = arg;
-		else if (!strncasecmp(cmd, "cgroup:", 7))
+		else if (MATCH_CMD(cmd, "cgroup:", arg))
-			cgroup = &cmd[7]; /* only settings */
+			cgroup = arg; /* only settings */
-		else if (!strncasecmp(cmd, "cgroup.", 7))
+		else if (MATCH_CMD(cmd, "cgroup.", arg))
-			cgroup = &cmd[6]; /* with group */
+			cgroup = arg; /* with group */
 		else
 			break;