int config_parse_strv(const char *unit,
const char *filename,
unsigned line,
const char *section,
unsigned section_line,
const char *lvalue,
int ltype,
const char *rvalue,
void *data,
void *userdata) {
char *** sv = data, *w, *state;
size_t l;
int r;
assert(filename);
assert(lvalue);
assert(rvalue);
assert(data);
if (isempty(rvalue)) {
char **empty;
/* Empty assignment resets the list. As a special rule
* we actually fill in a real empty array here rather
* than NULL, since some code wants to know if
* something was set at all... */
empty = strv_new(NULL, NULL);
if (!empty)
return log_oom();
strv_free(*sv);
*sv = empty;
return 0;
}
FOREACH_WORD_QUOTED(w, l, rvalue, state) {
_cleanup_free_ char *n;
n = cunescape_length(w, l);
if (!n)
return log_oom();
if (!utf8_is_valid(n)) {
log_syntax(unit, LOG_ERR, filename, line, EINVAL,
"String is not UTF-8 clean, ignoring: %s", rvalue);
continue;
}
r = strv_extend(sv, n);
if (r < 0)
return log_oom();
}
int pull_find_old_etags(
const char *url,
const char *image_root,
int dt,
const char *prefix,
const char *suffix,
char ***etags) {
_cleanup_free_ char *escaped_url = NULL;
_cleanup_closedir_ DIR *d = NULL;
_cleanup_strv_free_ char **l = NULL;
struct dirent *de;
int r;
assert(url);
assert(etags);
if (!image_root)
image_root = "/var/lib/machines";
escaped_url = xescape(url, FILENAME_ESCAPE);
if (!escaped_url)
return -ENOMEM;
d = opendir(image_root);
if (!d) {
if (errno == ENOENT) {
*etags = NULL;
return 0;
}
return -errno;
}
FOREACH_DIRENT_ALL(de, d, return -errno) {
const char *a, *b;
char *u;
if (de->d_type != DT_UNKNOWN &&
de->d_type != dt)
continue;
if (prefix) {
a = startswith(de->d_name, prefix);
if (!a)
continue;
} else
a = de->d_name;
a = startswith(a, escaped_url);
if (!a)
continue;
a = startswith(a, ".");
if (!a)
continue;
if (suffix) {
b = endswith(de->d_name, suffix);
if (!b)
continue;
} else
b = strchr(de->d_name, 0);
if (a >= b)
continue;
r = cunescape_length(a, b - a, 0, &u);
if (r < 0)
return r;
if (!http_etag_is_valid(u)) {
free(u);
continue;
}
r = strv_consume(&l, u);
if (r < 0)
return r;
}
*etags = l;
l = NULL;
return 0;
}
