/**
* check if any dir or file within path is hidden
*/
int path_hidden(const char *path, int branch) {
DBG("%s\n", path);
if (!uopt.cow_enabled) RETURN(false);
char whiteoutpath[PATHLEN_MAX];
if (BUILD_PATH(whiteoutpath, uopt.branches[branch].path, METADIR, path)) RETURN(false);
// -1 as we MUST not end on the next path element
char *walk = whiteoutpath + uopt.branches[branch].path_len + strlen(METADIR) - 1;
// first slashes, e.g. we have path = /dir1/dir2/, will set walk = dir1/dir2/
while (*walk == '/') walk++;
do {
// walk over the directory name, walk will now be /dir2
while (*walk != '\0' && *walk != '/') walk++;
// +1 due to \0, which gets added automatically
char p[PATHLEN_MAX];
// walk - path = strlen(/dir1)
snprintf(p, (walk - whiteoutpath) + 1, "%s", whiteoutpath);
int res = filedir_hidden(p);
if (res) RETURN(res); // path is hidden or error
// as above the do loop, walk over the next slashes, walk = dir2/
while (*walk == '/') walk++;
} while (*walk != '\0');
RETURN(0);
}
/**
* check if any dir or file within path is hidden
*/
bool path_hidden(const char *path, int branch) {
if (!uopt.cow_enabled) return false;
char whiteoutpath[PATHLEN_MAX];
if (BUILD_PATH(whiteoutpath, uopt.roots[branch].path, METADIR, path)) {
syslog (LOG_WARNING, "%s(): Path too long\n", __func__);
return false;
}
char *walk = whiteoutpath;
// first slashes, e.g. we have path = /dir1/dir2/, will set walk = dir1/dir2/
while (*walk != '\0' && *walk == '/') walk++;
bool first = true;
do {
// walk over the directory name, walk will now be /dir2
while (*walk != '\0' && *walk != '/') walk++;
if (first) {
// first dir in path is our branch, no need to check if it is hidden
first = false;
continue;
}
// +1 due to \0, which gets added automatically
char p[PATHLEN_MAX];
snprintf(p, (walk - whiteoutpath) + 1, "%s", whiteoutpath); // walk - path = strlen(/dir1)
bool res = filedir_hidden(p);
if (res) return res; // path is hidden
// as above the do loop, walk over the next slashes, walk = dir2/
while (*walk != '\0' && *walk == '/') walk++;
} while (*walk != '\0');
return 0;
}
