init

dbclient.h

@@ -0,0 +1,81 @@
+#ifndef DBCLIENT_H
+#define DBCLIENT_H
+#include <csse2310a4.h>
+#include <ctype.h>
+#include <netdb.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/socket.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#define GET_REQUEST "GET /public/%s HTTP/1.1\r\n\r\n"
+#define PUT_REQUEST "PUT /public/%s HTTP/1.1\r\nContent-Length: %lu\r\n\r\n%s"
+
+// Program exit codes
+enum ExitCodes {
+    EXIT_OK = 0,
+    EXIT_ERR = 1,
+    EXIT_PORT_ERR = 2,
+    EXIT_GET_ERR = 3,
+    EXIT_PUT_ERR = 4
+};
+
+/* construct_header()
+ * ------------------
+ * Constructs the needed header to be sent
+ *
+ * key: the to check or update
+ * value: the value to assign to the key
+ *
+ * Returns: the header
+ */
+char *construct_header(char *key, char *value);
+
+/* handle_connect()
+ * ----------------
+ * Handles the initial connection to the port given, updates the given
+ * file descriptors pointer to the created one
+ *
+ * port: the port number or service to connect to
+ * fd: the file descriptor that will be connected for the connection
+ *
+ * Returns: 1 if the address info couldnt be found, 2 if could not connect to
+ *      port, 0 if successful
+ */
+int handle_connect(char *port, int *fd);
+
+/* handle_response()
+ * -----------------
+ * Handles the response given from the connected server
+ *
+ * recv: the fd that will be used for reading
+ * valueSet: if the value argument was set
+ *
+ * Returns: 3 if GET failed, 4 if PUT failed, 0 if successful
+ */
+int handle_response(FILE *recv, int valueSet);
+
+/* handle_connection()
+ * -------------------
+ * Handles the connection to the given port, sends a GET or PUT request
+ * depending on if the value argument is not NULL
+ *
+ * port: the port to connect to
+ * key: the key to retrieve or update
+ * value: the value to update the supplied key to
+ */
+int handle_connection(char *port, char *key, char *value);
+
+/* is_valid_key()
+ * --------------
+ * Checks if the given key is valid according to the spec
+ *
+ * key: the key to check if valid
+ *
+ * Returns: 0 if not valid, 1 if valid
+ */
+int is_valid_key(char *key);
+
+#endif