diff options
Diffstat (limited to 'g10/keygen.c')
| -rw-r--r-- | g10/keygen.c | 35 |
1 files changed, 20 insertions, 15 deletions
diff --git a/g10/keygen.c b/g10/keygen.c index ac6bcc890..d9037d29d 100644 --- a/g10/keygen.c +++ b/g10/keygen.c @@ -227,18 +227,22 @@ print_status_key_not_created (const char *handle) -static void -write_uid( KBNODE root, const char *s ) +static gpg_error_t +write_uid (kbnode_t root, const char *s) { - PACKET *pkt = xmalloc_clear(sizeof *pkt ); - size_t n = strlen(s); - - pkt->pkttype = PKT_USER_ID; - pkt->pkt.user_id = xmalloc_clear (sizeof *pkt->pkt.user_id + n); - pkt->pkt.user_id->len = n; - pkt->pkt.user_id->ref = 1; - strcpy(pkt->pkt.user_id->name, s); - add_kbnode( root, new_kbnode( pkt ) ); + PACKET *pkt = xmalloc_clear (sizeof *pkt); + size_t n = strlen (s); + + if (n > MAX_UID_PACKET_LENGTH - 10) + return gpg_error (GPG_ERR_INV_USER_ID); + + pkt->pkttype = PKT_USER_ID; + pkt->pkt.user_id = xmalloc_clear (sizeof *pkt->pkt.user_id + n); + pkt->pkt.user_id->len = n; + pkt->pkt.user_id->ref = 1; + strcpy (pkt->pkt.user_id->name, s); + add_kbnode (root, new_kbnode (pkt)); + return 0; } static void @@ -5092,10 +5096,11 @@ do_generate_keypair (ctrl_t ctrl, struct para_data_s *para, if (!err && (s = get_parameter_value (para, pUSERID))) { - write_uid (pub_root, s ); - err = write_selfsigs (ctrl, pub_root, pri_psk, - get_parameter_uint (para, pKEYUSAGE), timestamp, - cache_nonce); + err = write_uid (pub_root, s ); + if (!err) + err = write_selfsigs (ctrl, pub_root, pri_psk, + get_parameter_uint (para, pKEYUSAGE), timestamp, + cache_nonce); } /* Write the auth key to the card before the encryption key. This |