diff options
| -rw-r--r-- | ChangeLog | 3 | ||||
| -rw-r--r-- | sysdeps/unix/fdopendir.c | 10 |
2 files changed, 13 insertions, 0 deletions
@@ -1,5 +1,8 @@ 2005-10-15 Ulrich Drepper <drepper@redhat.com> + * sysdeps/unix/fdopendir.c (fdopendir): Make sure descriptor + allows reading. + * wcsmbs/tst-mbrtowc2.c: Use de_DE.UTF-8 instead of en_US.UTF-8. * wcsmbs/Makefile: Define tst-mbrtowc2-ENV. diff --git a/sysdeps/unix/fdopendir.c b/sysdeps/unix/fdopendir.c index ef6c97c..23d08fd 100644 --- a/sysdeps/unix/fdopendir.c +++ b/sysdeps/unix/fdopendir.c @@ -18,6 +18,7 @@ #include <dirent.h> #include <errno.h> +#include <fcntl.h> #include <sys/stat.h> #include <not-cancel.h> @@ -35,6 +36,15 @@ fdopendir (int fd) __set_errno (ENOTDIR); return NULL; } + /* Make sure the descriptor allows for reading. */ + int flags = __fcntl (fd, F_GETFL); + if (__builtin_expect (flags == -1, 0)) + return NULL; + if (__builtin_expect ((flags & O_ACCMODE) == O_WRONLY, 0)) + { + __set_errno (EINVAL); + return NULL; + } return __alloc_dir (fd, false, &statbuf); } |