added error logging to sqlite plugin

diff --git a/src/libstrongswan/plugins/sqlite/sqlite_database.c b/src/libstrongswan/plugins/sqlite/sqlite_database.c
index 85faad8..d71b296 100644 (file)
--- a/src/libstrongswan/plugins/sqlite/sqlite_database.c
+++ b/src/libstrongswan/plugins/sqlite/sqlite_database.c
@@ -51,7 +51,7 @@ struct private_sqlite_database_t {
 static sqlite3_stmt* run(private_sqlite_database_t *this, char *sql,
                                                 va_list *args)
 {
-       sqlite3_stmt *stmt;
+       sqlite3_stmt *stmt = NULL;
        int params, i, res = SQLITE_OK;
        
        if (sqlite3_prepare_v2(this->db, sql, -1, &stmt, NULL) == SQLITE_OK)
@@ -105,8 +105,13 @@ static sqlite3_stmt* run(private_sqlite_database_t *this, char *sql,
                        }
                }
        }
+       else
+       {
+               DBG1("preparing sqlite statement failed: %s", sqlite3_errmsg(this->db));
+       }
        if (res != SQLITE_OK)
        {
+               DBG1("binding sqlite statement failed: %s", sqlite3_errmsg(this->db));
                sqlite3_finalize(stmt);
                return NULL;
        }
@@ -122,6 +127,8 @@ typedef struct {
        int count;
        /** column types */
        db_type_t *columns;
+       /** reference to db connection */
+       sqlite3 *db;
 } sqlite_enumerator_t;
 
 /**
@@ -142,9 +149,15 @@ static bool sqlite_enumerator_enumerate(sqlite_enumerator_t *this, ...)
        int i;
        va_list args;
 
-       if (sqlite3_step(this->stmt) != SQLITE_ROW)
+       switch (sqlite3_step(this->stmt))
        {
-               return FALSE;
+               case SQLITE_ROW:
+                       break;
+               default:
+                       DBG1("stepping sqlite statement failed: %s", sqlite3_errmsg(this->db));
+                       /* fall */
+               case SQLITE_DONE:
+                       return FALSE;
        }
        va_start(args, this);
        for (i = 0; i < this->count; i++)
@@ -183,6 +196,7 @@ static bool sqlite_enumerator_enumerate(sqlite_enumerator_t *this, ...)
                                break;
                        }
                        default:
+                               DBG1("invalid result type supplied");
                                return FALSE;
                }
        }
@@ -211,6 +225,7 @@ static enumerator_t* query(private_sqlite_database_t *this, char *sql, ...)
                enumerator->stmt = stmt;
                enumerator->count = sqlite3_column_count(stmt);
                enumerator->columns = malloc(sizeof(db_type_t) * enumerator->count);
+               enumerator->db = this->db;
                for (i = 0; i < enumerator->count; i++)
                {
                        enumerator->columns[i] = va_arg(args, db_type_t);
@@ -244,6 +259,10 @@ static int execute(private_sqlite_database_t *this, int *rowid, char *sql, ...)
                        }
                        affected = sqlite3_changes(this->db);
                }
+               else
+               {
+                       DBG1("sqlite execute failed: %s", sqlite3_errmsg(this->db));
+               }
                sqlite3_finalize(stmt);
        }
        this->mutex->unlock(this->mutex);
@@ -287,7 +306,8 @@ sqlite_database_t *sqlite_database_create(char *uri)
        
        if (sqlite3_open(file, &this->db) != SQLITE_OK)
        {
-               DBG1("opening SQLite database '%s' failed", file);
+               DBG1("opening SQLite database '%s' failed: %s",
+                        file, sqlite3_errmsg(this->db));
                destroy(this);
                return NULL;
        }