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/*
* keys.c Key management for nfsd. Currently, keys
* are kept in a single file only, but eventually,
* support for a key server should be added.
*
* Copyright (C) 1995 Olaf Kirch <okir@monad.swb.de>
*/
#include "config.h"
#include <sys/stat.h>
#include "nfslib.h"
#include "exportfs.h"
#include "xmalloc.h"
struct keycache {
struct keycache * k_next;
struct nfskeyent k_data;
};
static struct keycache * keycache = NULL;
static time_t lastmod = 0;
static void key_reload(void);
struct nfskey *
key_lookup(char *hname)
{
struct keycache *kc;
key_reload();
for (kc = keycache; kc; kc = kc->k_next) {
#if 0
if (matchhostname(kc->k_data.k_hostname, hname))
#else
if (!strcmp(kc->k_data.k_hostname, hname))
#endif
return &kc->k_data.k_key;
}
return NULL;
}
static void
key_reload(void)
{
struct stat stb;
struct keycache *cp;
struct nfskeyent *kp;
if (stat(_PATH_NFSKEYS, &stb) >= 0 && stb.st_mtime == lastmod)
return;
while (keycache) {
cp = keycache->k_next;
xfree(keycache);
keycache = cp;
}
setnfskeyent(_PATH_NFSKEYS);
while ((kp = getnfskeyent()) != NULL) {
cp = (struct keycache *) xmalloc(sizeof(*cp));
cp->k_data = *kp;
cp->k_next = keycache;
keycache = cp;
}
endnfskeyent();
lastmod = stb.st_mtime;
}
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