static struct selabel_lookup_rec *lookup_best_match(struct selabel_handle *rec,
const char *key,
const char **aliases,
int type)
{
size_t n, i;
int best = -1;
struct spec **specs;
size_t prefix_len = 0;
struct selabel_lookup_rec *lr = NULL;
if (!aliases || !aliases[0])
return lookup(rec, key, type);
for (n = 0; aliases[n]; n++)
;
specs = calloc(n+1, sizeof(struct spec *));
if (!specs)
return NULL;
specs[0] = lookup_common(rec, key, type, false);
if (specs[0]) {
if (!specs[0]->hasMetaChars) {
/* exact match on key */
lr = &specs[0]->lr;
goto out;
}
best = 0;
prefix_len = specs[0]->prefix_len;
}
for (i = 1; i <= n; i++) {
specs[i] = lookup_common(rec, aliases[i-1], type, false);
if (specs[i]) {
if (!specs[i]->hasMetaChars) {
/* exact match on alias */
lr = &specs[i]->lr;
goto out;
}
if (specs[i]->prefix_len > prefix_len) {
best = i;
prefix_len = specs[i]->prefix_len;
}
}
}
if (best >= 0) {
/* longest fixed prefix match on key or alias */
lr = &specs[best]->lr;
} else {
errno = ENOENT;
}
out:
free(specs);
return lr;
}
static struct selabel_lookup_rec *lookup(struct selabel_handle *rec,
const char *key, int type)
{
spec_t *spec;
spec = lookup_common(rec, key, type, false);
if (spec)
return &spec->lr;
return NULL;
}
static char *lookup_string(struct sdtid *s, const char *name, const char *def)
{
char *ret = lookup_common(s, name);
if (!ret && def) {
ret = strdup(def);
if (!ret)
s->error = ERR_NO_MEMORY;
}
return ret;
}
static int lookup_int(struct sdtid *s, const char *name, int def)
{
char *ret = lookup_common(s, name), *endp;
long val;
if (!ret)
return def;
val = strtol(ret, &endp, 0);
if (*endp || !*ret)
s->error = ERR_GENERAL;
free(ret);
return val;
}
static int lookup_b64(struct sdtid *s, const char *name, uint8_t *out,
int buf_len)
{
char *data = lookup_common(s, name), *p;
unsigned long actual = buf_len;
int len;
if (!data)
return -1;
/* <Seed> has a bogus character at the start of the string */
p = data;
if (*p && !strcmp(name, "Seed"))
p++;
len = base64_decode(p, strlen(p), out, &actual) == CRYPT_OK ?
actual : -1;
free(data);
return len == buf_len ? 0 : -1;
}
static int node_present(struct sdtid *s, const char *name)
{
char *str = s ? lookup_common(s, name) : NULL;
free(str);
return !!str;
}
static bool partial_match(struct selabel_handle *rec, const char *key)
{
return lookup_common(rec, key, 0, true) ? true : false;
}
int glite_jpps_fplug_lookup(glite_jp_context_t ctx,const char *uri, glite_jpps_fplug_data_t ***plugin_data)
{
return lookup_common(ctx,uri,NULL,plugin_data);
}
