Print error when getline() fails (thanks to Ivan Stankovic)

[platform/upstream/cryptsetup.git] / src / cryptsetup.c

diff --git a/src/cryptsetup.c b/src/cryptsetup.c
index af0ea60..179d351 100644 (file)
--- a/src/cryptsetup.c
+++ b/src/cryptsetup.c
@@ -79,19 +79,23 @@ static struct action_type {
 /* Interface Callbacks */
 static int yesDialog(char *msg)
 {
-       int r = 0;
+       char *answer = NULL;
+       size_t size = 0;
+       int r = 1;
+
        if(isatty(0) && !opt_batch_mode) {
-               char *answer=NULL;
-               size_t size=0;
-               fprintf(stderr,"\nWARNING!\n========\n");
-               fprintf(stderr,"%s\n\nAre you sure? (Type uppercase yes): ",msg);
-               if(getline(&answer,&size,stdin) == -1)
+               fprintf(stderr, "\nWARNING!\n========\n");
+               fprintf(stderr, "%s\n\nAre you sure? (Type uppercase yes): ", msg);
+               if(getline(&answer, &size, stdin) == -1) {
+                       perror("getline");
+                       free(answer);
                        return 0;
-               if(strcmp(answer,"YES\n") == 0)
-                       r = 1;
+               }
+               if(strcmp(answer, "YES\n"))
+                       r = 0;
                free(answer);
-       } else
-               r = 1;
+       }
+
        return r;
 }