initial version of hashmap works

src/hashmap.c

@@ -1,9 +1,24 @@
 #include "hashmap.h"
 
-int hash(int sockfd) { return sockfd % HASHMAP_MAX_ITEMS; }
+int hash(int sockfd) { return sockfd % HASHMAP_MAX_CLIENTS; }
+
+void hm_init(struct hashmap *map) {
+	memset(map, 0, sizeof(struct hashmap) * HASHMAP_MAX_CLIENTS);
+
+	for (size_t i = 0; i < HASHMAP_MAX_CLIENTS; ++i) {
+		map[i].sockfd = -1;
+	}
+}
 
 void hm_insert(struct hashmap *map, int sockfd, struct sockaddr_storage *sas) {
 	int index = hash(sockfd);
 	map[index].sockfd = sockfd;
 	map[index].sas = *sas;
+
+    // I should check the collisions
+}
+
+struct hashmap *hm_lookup(struct hashmap *map, int sockfd) {
+	int index = hash(sockfd);
+	return &map[index];
 }