Remove unused header files, fix compiler warnings

1 files changed, 4 insertions, 10 deletions

diff --git a/sd.c b/sd.c
index 5ea3298..7d00989 100644
--- a/sd.c
+++ b/sd.c
@@ -2,9 +2,7 @@
 #include <stdbool.h>
 #include <stdio.h>
 #include <stdlib.h>
-#include <string.h>
 #include <time.h>
-#include <unistd.h>
 #include <getopt.h>
 #include <sqlite3.h>
 #include "segmenttree.h"
@@ -23,7 +21,7 @@ int main(int argc, char* argv[]) {
 		int c = getopt_long(argc, argv, "f:v", long_options, &option_index);
 		if (c == -1) break;
 		switch (c) {
-			case 'f': file = strdup(optarg); break;
+			case 'f': file = optarg; break;
 			case 'v': verbose = true; break;
 			default: abort();
 		}
@@ -74,16 +72,12 @@ int main(int argc, char* argv[]) {
 		sqlite3_prepare_v3(db, "SELECT key, val FROM cards WHERE idx=?", -1, 0, &stmt, NULL);
 		sqlite3_bind_int(stmt, 1, i);
 		sqlite3_step(stmt);
-		char *key, *val;
-		key = strdup(sqlite3_column_text(stmt, 0));
-		val = strdup(sqlite3_column_text(stmt, 1));
-		sqlite3_finalize(stmt);
-
-		printf("> %s\n", key);
+		printf("> %s\n", sqlite3_column_text(stmt, 0));
 
 		/* Wait for confirmation */
 		char b = getchar();
-		printf("%s\n", val);
+		printf("%s\n", sqlite3_column_text(stmt, 1));
+		sqlite3_finalize(stmt);
 
 		/* Read user input */
 		b = getchar();