return adjust_shared_perm(path);
}
-int safe_create_leading_directories(char *path)
+enum scld_error safe_create_leading_directories(char *path)
{
char *next_component = path + offset_1st_component(path);
+ enum scld_error ret = SCLD_OK;
- while (next_component) {
+ while (ret == SCLD_OK && next_component) {
struct stat st;
char *slash = strchr(next_component, '/');
if (!slash)
break;
- while (*(slash + 1) == '/')
- slash++;
+
next_component = slash + 1;
+ while (*next_component == '/')
+ next_component++;
if (!*next_component)
break;
*slash = '\0';
if (!stat(path, &st)) {
/* path exists */
- if (!S_ISDIR(st.st_mode)) {
- *slash = '/';
- return -3;
- }
+ if (!S_ISDIR(st.st_mode))
+ ret = SCLD_EXISTS;
} else if (mkdir(path, 0777)) {
if (errno == EEXIST &&
- !stat(path, &st) && S_ISDIR(st.st_mode)) {
+ !stat(path, &st) && S_ISDIR(st.st_mode))
; /* somebody created it since we checked */
- } else {
- *slash = '/';
- return -1;
- }
+ else if (errno == ENOENT)
+ /*
+ * Either mkdir() failed because
+ * somebody just pruned the containing
+ * directory, or stat() failed because
+ * the file that was in our way was
+ * just removed. Either way, inform
+ * the caller that it might be worth
+ * trying again:
+ */
+ ret = SCLD_VANISHED;
+ else
+ ret = SCLD_FAILED;
} else if (adjust_shared_perm(path)) {
- *slash = '/';
- return -2;
+ ret = SCLD_PERMS;
}
*slash = '/';
}
- return 0;
+ return ret;
}
-int safe_create_leading_directories_const(const char *path)
+enum scld_error safe_create_leading_directories_const(const char *path)
{
/* path points to cache entries, so xstrdup before messing with it */
char *buf = xstrdup(path);
- int result = safe_create_leading_directories(buf);
+ enum scld_error result = safe_create_leading_directories(buf);
free(buf);
return result;
}