initial import

stdio/bug7.c

@@ -0,0 +1,53 @@
+/* Regression test for fseek and freopen bugs.  */
+
+#include <stdio.h>
+
+int
+main ()
+{
+  int lose = 0;
+  char filename[] = "/tmp/foo";
+  FILE *fp;
+ 
+  fp = fopen (filename, "w+");
+  fprintf (fp, "Hello world!\n");
+  fflush (fp);
+  fseek (fp, 5L, SEEK_SET);
+  if (fseek (fp, -1L, SEEK_CUR) < 0)
+    {
+      printf ("seek failed\n");
+      lose = 1;
+    }
+  fclose (fp);
+  remove (filename);
+
+  {
+    FILE *file1;
+    FILE *file2;
+    char filename1[] = "/tmp/foo";
+    char filename2[] = "/tmp/bar";
+    int ch;
+
+    file1 = fopen (filename1, "w");
+    fclose (file1);
+
+    file2 = fopen (filename2, "w");
+    fputc ('x', file2);
+    fclose (file2);
+
+    file1 = fopen (filename1, "r");
+    file2 = freopen (filename2, "r", file1);
+    if ((ch = fgetc (file2)) != 'x')
+      {
+	printf ("wrong character in reopened file, value = %d\n", ch);
+	lose = 1;
+      }
+    fclose (file1);
+    fclose (file2);
+    remove (filename1);
+    remove (filename2);
+  }
+
+  puts (lose ? "Test FAILED!" : "Test succeeded.");
+  return lose;
+}