tests/extended_getdirentries64.c

   1 #ifdef T_NAMESPACE
   2 #undef T_NAMESPACE
   3 #endif
   4
   5 #include <darwintest.h>
   6 #include <darwintest_multiprocess.h>
   7
   8 #define PRIVATE 1
   9 #include "../bsd/sys/dirent.h"
  10
  11 T_GLOBAL_META(T_META_RUN_CONCURRENTLY(true));
  12
  13 ssize_t __getdirentries64(int fd, void *buf, size_t bufsize, off_t *basep);
  14
  15 T_DECL(getdirentries64_extended, "check for GETDIRENTRIES64_EOF")
  16 {
  17         char buf[GETDIRENTRIES64_EXTENDED_BUFSIZE];
  18         getdirentries64_flags_t *flags;
  19         ssize_t result;
  20         off_t offset;
  21         int fd;
  22         bool eof = false;
  23
  24         flags = (getdirentries64_flags_t *)(uintptr_t)(buf + sizeof(buf) -
  25             sizeof(getdirentries64_flags_t));
  26         fd = open("/", O_DIRECTORY | O_RDONLY);
  27         T_ASSERT_POSIX_SUCCESS(fd, "open(/)");
  28
  29         for (;;) {
  30                 *flags = (getdirentries64_flags_t)~0;
  31                 result = __getdirentries64(fd, buf, sizeof(buf), &offset);
  32                 T_ASSERT_POSIX_SUCCESS(result, "__getdirentries64()");
  33                 T_ASSERT_LE((size_t)result, sizeof(buf) - sizeof(getdirentries64_flags_t),
  34                     "The kernel should have left space for the flags");
  35                 T_ASSERT_NE(*flags, (getdirentries64_flags_t)~0,
  36                     "The kernel should have returned status");
  37                 if (eof) {
  38                         T_ASSERT_EQ(result, 0l, "At EOF, we really should be done");
  39                         T_ASSERT_TRUE(*flags & GETDIRENTRIES64_EOF, "And EOF should still be set");
  40                         T_END;
  41                 }
  42                 T_ASSERT_NE(result, 0l, "We're not at EOF, we should have an entry");
  43                 eof = (*flags & GETDIRENTRIES64_EOF);
  44         }
  45 }