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Fix bug with unmounted directory on GNU/Linux

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* src/sysdep.c (emacs_get_current_dir_name): Do not use
get_current_dir_name result unless it is absolute (Bug#27871).
This commit is contained in:
Paul Eggert 2017-10-05 15:55:10 -07:00
parent 16dc580aa6
commit db893ab863
1 changed files with 12 additions and 1 deletions
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13
src/sysdep.c
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@ -232,7 +232,18 @@ emacs_get_current_dir_name (void)
bool use_libc = true;
# endif
if (use_libc)
return get_current_dir_name ();
{
/* GNU/Linux get_current_dir_name can return a string starting
with "(unreachable)" (Bug#27871). */
char *wd = get_current_dir_name ();
if (wd && ! (IS_DIRECTORY_SEP (*wd) || (*wd && IS_DEVICE_SEP (wd[1]))))
{
free (wd);
errno = ENOENT;
return NULL;
}
return wd;
}
# endif
char *buf;