int pr_memcache_conn_set_namespace(pr_memcache_t *mcache, module *m,
const char *prefix) {
if (mcache == NULL ||
m == NULL) {
errno = EINVAL;
return -1;
}
if (mcache->namespace_tab == NULL) {
pr_table_t *tab;
tab = pr_table_alloc(mcache->pool, 0);
if (pr_table_ctl(tab, PR_TABLE_CTL_SET_KEY_CMP, modptr_cmp_cb) < 0) {
pr_trace_msg(trace_channel, 4,
"error setting key comparison callback for namespace table: %s",
strerror(errno));
}
if (pr_table_ctl(tab, PR_TABLE_CTL_SET_KEY_HASH, modptr_hash_cb) < 0) {
pr_trace_msg(trace_channel, 4,
"error setting key hash callback for namespace table: %s",
strerror(errno));
}
mcache->namespace_tab = tab;
}
if (prefix != NULL) {
int count;
size_t prefix_len;
prefix_len = strlen(prefix);
count = pr_table_kexists(mcache->namespace_tab, m, sizeof(module *));
if (count <= 0) {
if (pr_table_kadd(mcache->namespace_tab, m, sizeof(module *),
pstrndup(mcache->pool, prefix, prefix_len), prefix_len) < 0) {
pr_trace_msg(trace_channel, 7,
"error adding namespace prefix '%s' for module 'mod_%s.c': %s",
prefix, m->name, strerror(errno));
}
} else {
if (pr_table_kset(mcache->namespace_tab, m, sizeof(module *),
pstrndup(mcache->pool, prefix, prefix_len), prefix_len) < 0) {
pr_trace_msg(trace_channel, 7,
"error setting namespace prefix '%s' for module 'mod_%s.c': %s",
prefix, m->name, strerror(errno));
}
}
} else {
/* A NULL prefix means the caller is removing their namespace maping. */
(void) pr_table_kremove(mcache->namespace_tab, m, sizeof(module *), NULL);
}
return 0;
}
static void gidcache_add(gid_t gid, const char *name) {
if (!(auth_caching & PR_AUTH_CACHE_FL_GID2NAME)) {
return;
}
gidcache_create();
if (gid_tab) {
int count;
(void) pr_table_rewind(gid_tab);
count = pr_table_kexists(gid_tab, (const void *) &gid, sizeof(gid_t));
if (count <= 0) {
gid_t *cache_gid;
/* Allocate memory for a GID out of the ID cache pool, so that this
* GID can be used as a key.
*/
cache_gid = palloc(auth_pool, sizeof(gid_t));
*cache_gid = gid;
if (pr_table_kadd(gid_tab, (const void *) cache_gid, sizeof(gid_t),
pstrdup(auth_pool, name), strlen(name) + 1) < 0 &&
errno != EEXIST) {
pr_trace_msg(trace_channel, 3,
"error adding name '%s' for GID %lu to the gidcache: %s", name,
(unsigned long) gid, strerror(errno));
} else {
pr_trace_msg(trace_channel, 5,
"stashed name '%s' for GID %lu in the gidcache", name,
(unsigned long) gid);
}
}
}
}
