(_IO_new_file_fopen): Recognize new mode specifier 'm' to enable mmap I/O.

diff --git a/libio/fileops.c b/libio/fileops.c
index e9e9193..c1892f3 100644 (file)
--- a/libio/fileops.c
+++ b/libio/fileops.c
@@ -290,7 +290,7 @@ _IO_new_file_fopen (fp, filename, mode, is32not64)
 #ifdef _LIBC
   last_recognized = mode;
 #endif
-  for (i = 1; i < 4; ++i)
+  for (i = 1; i < 5; ++i)
     {
       switch (*++mode)
        {
@@ -313,6 +313,10 @@ _IO_new_file_fopen (fp, filename, mode, is32not64)
 #ifdef _LIBC
          last_recognized = mode;
 #endif
+         continue;
+       case 'm':
+         fp->_flags2 |= _IO_FLAGS2_MMAP;
+         continue;
        default:
          /* Ignore.  */
          continue;