diff options
| -rw-r--r-- | src/pwd.c | 5 |
1 files changed, 4 insertions, 1 deletions
@@ -247,7 +247,7 @@ find_dir_entry (struct stat *dot_sb, struct Path *path, size_t parent_height) /* Construct the full, absolute name of the current working directory and store it in *PATH. - The getcwd function does nearly the same task, but is typically + The getcwd function performs nearly the same task, but is typically unable to handle names longer than PATH_MAX. This function has no such limitation. However, this function *can* fail due to permission problems or a lack of memory, while Linux's getcwd @@ -260,6 +260,9 @@ find_dir_entry (struct stat *dot_sb, struct Path *path, size_t parent_height) used as a getcwd replacement. Unfortunately, considering all of the information the caller would require in order to produce good diagnostics, it doesn't seem worth the added complexity. + In any case, any getcwd replacement must *not* exceed the PATH_MAX + limitation. Otherwise, functions like `chdir' would fail with + ENAMETOOLONG. FIXME-maybe: if find_dir_entry fails due to permissions, try getcwd, in case the unreadable directory is close enough to the root that |