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authorDavid Oberhollenzer <david.oberhollenzer@sigma-star.at>2021-03-25 14:23:58 +0100
committerDavid Oberhollenzer <david.oberhollenzer@sigma-star.at>2021-03-25 14:35:39 +0100
commitb0b88d26c9df6d336167f87ce926bba9b56f6af0 (patch)
tree39733ee0a0127380bc7b4c93cd67f6a15afc74e4 /lib/fstree
parentbd87f7c8a46cabe6d4c71d9cea74329898da31a7 (diff)
libfstree: Allow / as argument for "glob" and "dir" commands
This allows putting globbed files & directories into the filesystem root, as well as explicitly setting attributes of the root directory from the file lisiting. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
Diffstat (limited to 'lib/fstree')
-rw-r--r--lib/fstree/add_by_path.c7
-rw-r--r--lib/fstree/fstree.c1
-rw-r--r--lib/fstree/fstree_from_file.c26
3 files changed, 24 insertions, 10 deletions
diff --git a/lib/fstree/add_by_path.c b/lib/fstree/add_by_path.c
index 7c9063e..8918efc 100644
--- a/lib/fstree/add_by_path.c
+++ b/lib/fstree/add_by_path.c
@@ -17,6 +17,11 @@ tree_node_t *fstree_add_generic(fstree_t *fs, const char *path,
tree_node_t *child, *parent;
const char *name;
+ if (*path == '\0') {
+ child = fs->root;
+ goto out;
+ }
+
parent = fstree_get_node_by_path(fs, fs->root, path, true, true);
if (parent == NULL)
return NULL;
@@ -27,7 +32,7 @@ tree_node_t *fstree_add_generic(fstree_t *fs, const char *path,
child = parent->data.dir.children;
while (child != NULL && strcmp(child->name, name) != 0)
child = child->next;
-
+out:
if (child != NULL) {
if (!S_ISDIR(child->mode) || !S_ISDIR(sb->st_mode) ||
!child->data.dir.created_implicitly) {
diff --git a/lib/fstree/fstree.c b/lib/fstree/fstree.c
index b2e199d..7c00755 100644
--- a/lib/fstree/fstree.c
+++ b/lib/fstree/fstree.c
@@ -120,6 +120,7 @@ int fstree_init(fstree_t *fs, char *defaults)
return -1;
}
+ fs->root->data.dir.created_implicitly = true;
return 0;
}
diff --git a/lib/fstree/fstree_from_file.c b/lib/fstree/fstree_from_file.c
index dd7ca22..3bf8cd1 100644
--- a/lib/fstree/fstree_from_file.c
+++ b/lib/fstree/fstree_from_file.c
@@ -344,19 +344,20 @@ static const struct callback_t {
unsigned int mode;
bool need_extra;
bool is_glob;
+ bool allow_root;
int (*callback)(fstree_t *fs, const char *filename, size_t line_num,
const char *path, struct stat *sb,
const char *basepath, unsigned int glob_flags,
const char *extra);
} file_list_hooks[] = {
- { "dir", S_IFDIR, false, false, add_generic },
- { "slink", S_IFLNK, true, false, add_generic },
- { "link", 0, true, false, add_hard_link },
- { "nod", 0, true, false, add_device },
- { "pipe", S_IFIFO, false, false, add_generic },
- { "sock", S_IFSOCK, false, false, add_generic },
- { "file", S_IFREG, false, false, add_file },
- { "glob", 0, true, true, glob_files },
+ { "dir", S_IFDIR, false, false, true, add_generic },
+ { "slink", S_IFLNK, true, false, false, add_generic },
+ { "link", 0, true, false, false, add_hard_link },
+ { "nod", 0, true, false, false, add_device },
+ { "pipe", S_IFIFO, false, false, false, add_generic },
+ { "sock", S_IFSOCK, false, false, false, add_generic },
+ { "file", S_IFREG, false, false, false, add_file },
+ { "glob", 0, true, true, true, glob_files },
};
#define NUM_HOOKS (sizeof(file_list_hooks) / sizeof(file_list_hooks[0]))
@@ -456,9 +457,12 @@ static int handle_line(fstree_t *fs, const char *filename,
if ((line = read_str(line, &path)) == NULL)
goto fail_ent;
- if (canonicalize_name(path) || *path == '\0')
+ if (canonicalize_name(path))
goto fail_ent;
+ if (*path == '\0' && !cb->allow_root)
+ goto fail_root;
+
if (cb->is_glob && *line == '*') {
++line;
mode = 0;
@@ -507,6 +511,10 @@ static int handle_line(fstree_t *fs, const char *filename,
return cb->callback(fs, filename, line_num, path,
&sb, basepath, glob_flags, extra);
+fail_root:
+ fprintf(stderr, "%s: " PRI_SZ ": cannot use / as argument for %s.\n",
+ filename, line_num, cb->keyword);
+ return -1;
fail_no_extra:
fprintf(stderr, "%s: " PRI_SZ ": missing argument for %s.\n",
filename, line_num, cb->keyword);