daemon: fix loops that have mismatching integer types

We have several loops in "daemon.c" that use a signed integer to loop
through a `size_t`. Adapt them to instead use a `size_t` as counter
value.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

Author: pks-t

daemon.c

@@ -503,8 +503,7 @@ static struct daemon_service daemon_service[] = {
 
 static void enable_service(const char *name, int ena)
 {
-	int i;
-	for (i = 0; i < ARRAY_SIZE(daemon_service); i++) {
+	for (size_t i = 0; i < ARRAY_SIZE(daemon_service); i++) {
 		if (!strcmp(daemon_service[i].name, name)) {
 			daemon_service[i].enabled = ena;
 			return;
@@ -515,8 +514,7 @@ static void enable_service(const char *name, int ena)
 
 static void make_service_overridable(const char *name, int ena)
 {
-	int i;
-	for (i = 0; i < ARRAY_SIZE(daemon_service); i++) {
+	for (size_t i = 0; i < ARRAY_SIZE(daemon_service); i++) {
 		if (!strcmp(daemon_service[i].name, name)) {
 			daemon_service[i].overridable = ena;
 			return;
@@ -737,7 +735,7 @@ static void set_keep_alive(int sockfd)
 static int execute(void)
 {
 	char *line = packet_buffer;
-	int pktlen, len, i;
+	int pktlen, len;
 	char *addr = getenv("REMOTE_ADDR"), *port = getenv("REMOTE_PORT");
 	struct hostinfo hi = HOSTINFO_INIT;
 	struct strvec env = STRVEC_INIT;
@@ -758,7 +756,7 @@ static int execute(void)
 	if (len != pktlen)
 		parse_extra_args(&hi, &env, line + len + 1, pktlen - len - 1);
 
-	for (i = 0; i < ARRAY_SIZE(daemon_service); i++) {
+	for (size_t i = 0; i < ARRAY_SIZE(daemon_service); i++) {
 		struct daemon_service *s = &(daemon_service[i]);
 		const char *arg;
 
@@ -1108,8 +1106,8 @@ static void socksetup(struct string_list *listen_addr, int listen_port, struct s
 	if (!listen_addr->nr)
 		setup_named_sock(NULL, listen_port, socklist);
 	else {
-		int i, socknum;
-		for (i = 0; i < listen_addr->nr; i++) {
+		int socknum;
+		for (size_t i = 0; i < listen_addr->nr; i++) {
 			socknum = setup_named_sock(listen_addr->items[i].string,
 						   listen_port, socklist);
 
@@ -1123,20 +1121,17 @@ static void socksetup(struct string_list *listen_addr, int listen_port, struct s
 static int service_loop(struct socketlist *socklist)
 {
 	struct pollfd *pfd;
-	int i;
 
 	CALLOC_ARRAY(pfd, socklist->nr);
 
-	for (i = 0; i < socklist->nr; i++) {
+	for (size_t i = 0; i < socklist->nr; i++) {
 		pfd[i].fd = socklist->list[i];
 		pfd[i].events = POLLIN;
 	}
 
 	signal(SIGCHLD, child_handler);
 
 	for (;;) {
-		int i;
-
 		check_dead_children();
 
 		if (poll(pfd, socklist->nr, -1) < 0) {
@@ -1148,7 +1143,7 @@ static int service_loop(struct socketlist *socklist)
 			continue;
 		}
 
-		for (i = 0; i < socklist->nr; i++) {
+		for (size_t i = 0; i < socklist->nr; i++) {
 			if (pfd[i].revents & POLLIN) {
 				union {
 					struct sockaddr sa;