Implement dump database feature

Author: ElliottSobek

single-HTTP/config/server.conf

@@ -1,4 +1,4 @@
 port=8888
 document_root=/home/elliott/Github/C-Server-Collection/single-HTTP/
 log_root=/home/elliott/Github/C-Server-Collection/single-HTTP/logs/
-database_path=/home/elliott/Github/C-Server-Collection/single-HTTP/database/db.sqlite3/bob
+database_path=/home/elliott/Github/C-Server-Collection/single-HTTP/database/db.sqlite3

single-HTTP/lib/sqlite3/sqlite3.c

@@ -13,6 +13,10 @@
 #include "../types/types.h"
 #include "../colors/colors.h"
 
+#include "../../debug.h"
+
+#define ALL_TABLES -1
+
 typedef struct query_s {
  String stmt, specifiers;
  bool is_parameterized;
@@ -191,11 +195,44 @@ void sqlite_load_exec(const String restrict filepath) {
  sqlite_exec(sql_buf);
 }
 
-void sqlite_dumpdata(const String restrict table) {
- if (!table)
- puts("Database");
- else
- puts("Specific table");
+void sqlite_dumpdb(void) {
+ sqlite3 *d_db, *s_db;
+ sqlite3_backup *backup;
+ int result_code = sqlite3_open(_db_path, &s_db);
+
+ if (result_code != SQLITE_OK) {
+ fprintf(stderr, RED "Database Error: Cannot open database: %s\n" RESET, sqlite3_errmsg(s_db));
+ exit(EXIT_FAILURE);
+ }
+ result_code = sqlite3_open("database/copy.sqlite3", &d_db);
+
+ if (result_code != SQLITE_OK) {
+ fprintf(stderr, RED "Database Error: Cannot open database: %s\n" RESET, sqlite3_errmsg(d_db));
+ exit(EXIT_FAILURE);
+ }
+ backup = sqlite3_backup_init(d_db, "main", s_db, "main");
+
+ if (!backup) {
+ fprintf(stderr, RED "Database Error: Cannot initalize database copy: %s\n" RESET, sqlite3_errmsg(d_db));
+ exit(EXIT_FAILURE);
+ }
+ result_code = sqlite3_backup_step(backup, ALL_TABLES);
+
+ while (result_code == SQLITE_OK)
+ result_code = sqlite3_backup_step(backup, ALL_TABLES);
+
+ if (result_code != SQLITE_DONE) {
+ fprintf(stderr, RED "Database Error: Cannot copy database: %s\n" RESET, sqlite3_errmsg(s_db));
+ exit(EXIT_FAILURE);
+ }
+ sqlite3_backup_finish(backup);
+ sqlite3_close(s_db);
+
+ return;
+}
+
+void sqlite_dumptable(const String restrict table) {
+ puts("Dump table");
  return;
 }
 

single-HTTP/lib/sqlite3/sqlite3.h

@@ -5,7 +5,8 @@
 
 extern int sqlite_exec(const String restrict, ...);
 extern void sqlite_load_fixture(const String restrict);
-extern void sqlite_dumpdata(const String restrict);
+extern void sqlite_dumpdb(void);
+extern void sqlite_dumptable(const String restrict);
 extern void sqlite_load_exec(const String restrict);
 extern String sqlite_get_version(void);
 

single-HTTP/main.c

@@ -45,7 +45,7 @@
 #define STR_MAX 2048
 #define PORT_MIN 0
 #define PORT_MAX 65536
-#define MAX_ARGS 4
+#define MAX_ARGS 10
 #define PACKET_MAX 1024
 #define HTTP_VER_AMT 3
 #define HTTP_REQ_AMT 8
@@ -179,9 +179,9 @@ void compute_flags(const int argc, String *const argv, bool *v_flag) { // Done
 exit(EXIT_SUCCESS);
 case 'd':
 if (optarg)
-sqlite_dumpdata(optarg);
+sqlite_dumptable(optarg);
 else
-sqlite_dumpdata(NULL);
+sqlite_dumpdb();
 exit(EXIT_SUCCESS);
 case 'l':
 sqlite_load_exec(optarg);
@@ -607,6 +607,8 @@ int main(const int argc, String *const argv) {
  "Using: %s\n" RESET,
  _port, _doc_root, _log_root, sqlite_get_version());
 
+sqlite_exec("SELECT * FROM test;");
+
 const int default_root_len = strnlen(_doc_root, PATH_MAX);
 
 while (sigint_flag) {