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| author | Sergey Bugaev <bugaevc@gmail.com> | 2023-02-12 14:10:33 +0300 |
|---|---|---|
| committer | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2023-02-12 15:52:07 +0100 |
| commit | f4315054b46d5e58b44a709a51943fb73f846afb (patch) | |
| tree | 08dd446b613f6549260c17b3060453fa040eb4d8 /sysdeps/mach/hurd/readlinkat.c | |
| parent | 8a86e7b6a67f21294ada5bf67f3484ae3e134848 (diff) | |
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hurd: Use mach_msg_type_number_t where appropriate
It has been decided that on x86_64, mach_msg_type_number_t stays 32-bit.
Therefore, it's not possible to use mach_msg_type_number_t
interchangeably with size_t, in particular this breaks when a pointer to
a variable is passed to a MIG routine.
Signed-off-by: Sergey Bugaev <bugaevc@gmail.com>
Message-Id: <20230212111044.610942-3-bugaevc@gmail.com>
Diffstat (limited to 'sysdeps/mach/hurd/readlinkat.c')
| -rw-r--r-- | sysdeps/mach/hurd/readlinkat.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/sysdeps/mach/hurd/readlinkat.c b/sysdeps/mach/hurd/readlinkat.c index dabdbb3713..5bb8b75371 100644 --- a/sysdeps/mach/hurd/readlinkat.c +++ b/sysdeps/mach/hurd/readlinkat.c @@ -35,6 +35,7 @@ __readlinkat (int fd, const char *file_name, char *buf, size_t len) char retryname[1024]; file_t file; char *rbuf = buf; + mach_msg_type_number_t nread = len; file_stat = __file_name_lookup_at (fd, 0, file_name, O_NOLINK, 0); if (file_stat == MACH_PORT_NULL) @@ -59,15 +60,16 @@ __readlinkat (int fd, const char *file_name, char *buf, size_t len) goto out; } - err = __io_read (file, &rbuf, &len, 0, len); + err = __io_read (file, &rbuf, &nread, 0, len); __mach_port_deallocate (__mach_task_self (), file); if (err) goto out; + len = nread; if (rbuf != buf) { memcpy (buf, rbuf, len); - __vm_deallocate (__mach_task_self (), (vm_address_t) rbuf, len); + __vm_deallocate (__mach_task_self (), (vm_address_t) rbuf, nread); } |