some db functions

src/db.c

@@ -1,9 +1,22 @@
 #include <stdlib.h>
 #include <stdio.h>
 #include <sqlite3.h>
+#include <string.h>
 
 #include "include/db.h"
 
+static void open_db(sqlite3** db)
+{
+	int err;
+
+	err = sqlite3_open("books.db", db);
+	if (err != SQLITE_OK) {
+		fprintf(stderr, "Cannot open db: %s\n", sqlite3_errmsg(*db));
+		sqlite3_close(*db);
+		exit(EXIT_FAILURE);
+	}
+}
+
 static int get_num_rows(sqlite3* db)
 {
 	int rows = 0;
@@ -22,6 +35,8 @@ void setup_db(sqlite3* db)
 	int err;
 	char* err_buf = 0;
 
+	open_db(&db);
+
 	err = sqlite3_exec(db,
 			"CREATE TABLE IF NOT EXISTS books (id UNSIGNED INT PRIMARY KEY, \
 			title TEXT, subtitle TEXT, isbn TEXT, authors TEXT, subjects TEXT, \
@@ -34,4 +49,22 @@ void setup_db(sqlite3* db)
 		sqlite3_close(db);
 		exit(EXIT_FAILURE);
 	}
+
+	sqlite3_close(db);
+}
+
+#define INSERT_STR "INSERT INTO books (id, title, subtitle, isbn, authors, subjects, langs, date_added, date_completed, pub_date, image_code, year_of_pub, page_len) VALUES("
+
+void add_to_db(book_t* book, sqlite3* db)
+{
+	int id;
+	char* cmd;
+
+	open_db(&db);
+
+	id = get_num_rows(db) + 1;
+	
+	cmd = malloc(sizeof(char) * (strlen(INSERT_STR) + 1));
+	snprintf(cmd, strlen(INSERT_STR), "%s", INSERT_STR);
+	
 }

src/include/db.h

@@ -14,4 +14,6 @@ typedef struct {
 
 void setup_db(sqlite3* db);
 
+void add_to_db(book_t* book, sqlite3* db);
+
 #endif