From dd8323939e91b262e0b24a583a9ceef4424a08d4 Mon Sep 17 00:00:00 2001
From: Joachim Desroches <joachim.desroches@epfl.ch>
Date: Mon, 27 Sep 2021 15:35:20 +0200
Subject: [PATCH] Connect to PSQL database.

---
 exporter.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/exporter.c b/exporter.c
index 14aa5a1..4615bbd 100644
--- a/exporter.c
+++ b/exporter.c
@@ -12,5 +12,21 @@ int main(int argc, char **argv) {
     exit(EXIT_FAILURE);
   }
 
+  /* Setup database connection parameters */
+  char connstring[STRLEN];
+  sprintf(connstring, "database = %s, user = %s", argv[1], USER);
+
+  /* Connect to the database */
+  PGconn *conn = PQconnectdb(connstring);
+
+  if (conn == NULL) {
+    fprintf(stderr, "Out of memory connecting the PostgreSQL\n.");
+    exit(EXIT_FAILURE);
+  } else if (PQstatus(conn) != CONNECTION_OK) {
+    fprintf(stderr, PQerrorMessage(conn));
+    PQfinish(conn);
+    exit(EXIT_FAILURE);
+  }
+
   return EXIT_SUCCESS;
 }