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2002-05-13 Marcus Brinkmann <marcus@gnu.org>

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* hurd/hurdchdir.c (_hurd_change_directory_port_from_name):
        Allocate three, not two, more than LEN when appending '/.'.
        * sysdeps/mach/hurd/chroot.c (chroot): Likewise.  Don't check
        if NAME ends with '/.' if it is shorter than 2 chars.
This commit is contained in:
Roland McGrath 2002-05-13 01:49:55 +00:00
parent 0ef1284028
commit a79fccef13
2 changed files with 3 additions and 3 deletions
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2
hurd/hurdchdir.c
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@ -40,7 +40,7 @@ _hurd_change_directory_port_from_name (struct hurd_port *portcell,
lookup = name;
else
{
char *n = alloca (len + 2);
char *n = alloca (len + 3);
memcpy (n, name, len);
n[len] = '/';
n[len + 1] = '.';

4
sysdeps/mach/hurd/chroot.c
View File

@ -36,11 +36,11 @@ chroot (const char *path)
/* Append trailing "/." to directory name to force ENOTDIR if it's not a
directory and EACCES if we don't have search permission. */
len = strlen (path);
if (path[len - 2] == '/' && path[len - 1] == '.')
if (len >= 2 && path[len - 2] == '/' && path[len - 1] == '.')
lookup = path;
else
{
char *n = alloca (len + 2);
char *n = alloca (len + 3);
memcpy (n, path, len);
n[len] = '/';
n[len + 1] = '.';