#include "includes.h"
#include "openbsd-compat/fake-queue.h"
-RCSID("$OpenBSD: ssh-agent.c,v 1.94 2002/06/15 01:27:48 markus Exp $");
+RCSID("$OpenBSD: ssh-agent.c,v 1.101 2002/08/22 19:27:53 stevesk Exp $");
#include <openssl/evp.h>
#include <openssl/md5.h>
char *__progname;
#endif
+static void
+close_socket(SocketEntry *e)
+{
+ shutdown(e->fd, SHUT_RDWR);
+ close(e->fd);
+ e->fd = -1;
+ e->type = AUTH_UNUSED;
+ buffer_free(&e->input);
+ buffer_free(&e->output);
+ buffer_free(&e->request);
+}
+
static void
idtab_init(void)
{
int i;
+
for (i = 0; i <=2; i++) {
TAILQ_INIT(&idtable[i].idlist);
idtable[i].nentries = 0;
process_request_identities(SocketEntry *e, int version)
{
Idtab *tab = idtab_lookup(version);
- Buffer msg;
Identity *id;
+ Buffer msg;
buffer_init(&msg);
buffer_put_char(&msg, (version == 1) ?
static void
process_authentication_challenge1(SocketEntry *e)
{
- Identity *id;
- Key *key;
+ u_char buf[32], mdbuf[16], session_id[16];
+ u_int response_type;
BIGNUM *challenge;
+ Identity *id;
int i, len;
Buffer msg;
MD5_CTX md;
- u_char buf[32], mdbuf[16], session_id[16];
- u_int response_type;
+ Key *key;
buffer_init(&msg);
key = key_new(KEY_RSA1);
if ((challenge = BN_new()) == NULL)
fatal("process_authentication_challenge1: BN_new failed");
- buffer_get_int(&e->request); /* ignored */
+ (void) buffer_get_int(&e->request); /* ignored */
buffer_get_bignum(&e->request, key->rsa->e);
buffer_get_bignum(&e->request, key->rsa->n);
buffer_get_bignum(&e->request, challenge);
static void
process_sign_request2(SocketEntry *e)
{
- extern int datafellows;
- Key *key;
u_char *blob, *data, *signature = NULL;
u_int blen, dlen, slen = 0;
- int flags;
+ extern int datafellows;
+ int ok = -1, flags;
Buffer msg;
- int ok = -1;
+ Key *key;
datafellows = 0;
static void
process_remove_identity(SocketEntry *e, int version)
{
+ u_int blen, bits;
+ int success = 0;
Key *key = NULL;
u_char *blob;
- u_int blen;
- u_int bits;
- int success = 0;
switch (version) {
case 1:
buffer_get_bignum(&e->request, key->rsa->n);
if (bits != key_size(key))
- log("Warning: identity keysize mismatch: actual %d, announced %d",
+ log("Warning: identity keysize mismatch: actual %u, announced %u",
key_size(key), bits);
break;
case 2:
/* Send success. */
buffer_put_int(&e->output, 1);
buffer_put_char(&e->output, SSH_AGENT_SUCCESS);
- return;
}
static void
reaper(void)
{
- Idtab *tab;
+ u_int now = time(NULL);
Identity *id, *nxt;
int version;
- u_int now = time(NULL);
+ Idtab *tab;
for (version = 1; version < 3; version++) {
tab = idtab_lookup(version);
static void
process_add_identity(SocketEntry *e, int version)
{
- Key *k = NULL;
- char *type_name;
- char *comment;
- int type, success = 0, death = 0;
Idtab *tab = idtab_lookup(version);
+ int type, success = 0, death = 0;
+ char *type_name, *comment;
+ Key *k = NULL;
switch (version) {
case 1:
k = key_new_private(KEY_RSA1);
- buffer_get_int(&e->request); /* ignored */
+ (void) buffer_get_int(&e->request); /* ignored */
buffer_get_bignum(&e->request, k->rsa->n);
buffer_get_bignum(&e->request, k->rsa->e);
buffer_get_bignum(&e->request, k->rsa->d);
static void
process_lock_agent(SocketEntry *e, int lock)
{
- char *passwd;
int success = 0;
+ char *passwd;
passwd = buffer_get_string(&e->request, NULL);
if (locked && !lock && strcmp(passwd, lock_passwd) == 0) {
}
memset(passwd, 0, strlen(passwd));
xfree(passwd);
-
+
buffer_put_int(&e->output, 1);
buffer_put_char(&e->output,
success ? SSH_AGENT_SUCCESS : SSH_AGENT_FAILURE);
- return;
}
static void
static void
process_add_smartcard_key (SocketEntry *e)
{
- Identity *id;
- Idtab *tab;
- Key **keys, *k;
char *sc_reader_id = NULL, *pin;
int i, version, success = 0;
+ Key **keys, *k;
+ Identity *id;
+ Idtab *tab;
sc_reader_id = buffer_get_string(&e->request, NULL);
pin = buffer_get_string(&e->request, NULL);
static void
process_remove_smartcard_key(SocketEntry *e)
{
- Identity *id;
- Idtab *tab;
- Key **keys, *k = NULL;
char *sc_reader_id = NULL, *pin;
int i, version, success = 0;
+ Key **keys, *k = NULL;
+ Identity *id;
+ Idtab *tab;
sc_reader_id = buffer_get_string(&e->request, NULL);
pin = buffer_get_string(&e->request, NULL);
static void
process_message(SocketEntry *e)
{
- u_int msg_len;
- u_int type;
+ u_int msg_len, type;
u_char *cp;
/* kill dead keys */
cp = buffer_ptr(&e->input);
msg_len = GET_32BIT(cp);
if (msg_len > 256 * 1024) {
- shutdown(e->fd, SHUT_RDWR);
- close(e->fd);
- e->type = AUTH_UNUSED;
- buffer_free(&e->input);
- buffer_free(&e->output);
- buffer_free(&e->request);
+ close_socket(e);
return;
}
if (buffer_len(&e->input) < msg_len + 4)
new_socket(sock_type type, int fd)
{
u_int i, old_alloc;
+
if (fcntl(fd, F_SETFL, O_NONBLOCK) < 0)
error("fcntl O_NONBLOCK: %s", strerror(errno));
static void
after_select(fd_set *readset, fd_set *writeset)
{
- u_int i;
- int len, sock;
+ struct sockaddr_un sunaddr;
socklen_t slen;
char buf[1024];
- struct sockaddr_un sunaddr;
+ int len, sock;
+ u_int i;
for (i = 0; i < sockets_alloc; i++)
switch (sockets[i].type) {
break;
} while (1);
if (len <= 0) {
- shutdown(sockets[i].fd, SHUT_RDWR);
- close(sockets[i].fd);
- sockets[i].type = AUTH_UNUSED;
- buffer_free(&sockets[i].input);
- buffer_free(&sockets[i].output);
- buffer_free(&sockets[i].request);
+ close_socket(&sockets[i]);
break;
}
buffer_consume(&sockets[i].output, len);
break;
} while (1);
if (len <= 0) {
- shutdown(sockets[i].fd, SHUT_RDWR);
- close(sockets[i].fd);
- sockets[i].type = AUTH_UNUSED;
- buffer_free(&sockets[i].input);
- buffer_free(&sockets[i].output);
- buffer_free(&sockets[i].request);
+ close_socket(&sockets[i]);
break;
}
buffer_append(&sockets[i].input, buf, len);
main(int ac, char **av)
{
int sock, c_flag = 0, d_flag = 0, k_flag = 0, s_flag = 0, ch, nalloc;
+ char *shell, *format, *pidstr, *agentsocket = NULL;
+ fd_set *readsetp = NULL, *writesetp = NULL;
struct sockaddr_un sunaddr;
#ifdef HAVE_SETRLIMIT
struct rlimit rlim;
#ifdef HAVE_CYGWIN
int prev_mask;
#endif
- pid_t pid;
- char *shell, *format, *pidstr, pidstrbuf[1 + 3 * sizeof pid];
- char *agentsocket = NULL;
extern int optind;
- fd_set *readsetp = NULL, *writesetp = NULL;
+ extern char *optarg;
+ pid_t pid;
+ char pidstrbuf[1 + 3 * sizeof pid];
+
+ /* drop */
+ setegid(getgid());
+ setgid(getgid());
SSLeay_add_all_algorithms();
init_rng();
seed_rng();
-#ifdef __GNU_LIBRARY__
- while ((ch = getopt(ac, av, "+cdksa:")) != -1) {
-#else /* __GNU_LIBRARY__ */
while ((ch = getopt(ac, av, "cdksa:")) != -1) {
-#endif /* __GNU_LIBRARY__ */
switch (ch) {
case 'c':
if (s_flag)
#ifdef HAVE_CYGWIN
umask(prev_mask);
#endif
- if (listen(sock, 5) < 0) {
+ if (listen(sock, 128) < 0) {
perror("listen");
cleanup_exit(1);
}
andersk / openssh.git / blobdiff