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Fixed segfault when sending version rejects: VNAK/VFUL

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This commit is contained in:
Erik Ekman 2008-08-07 14:16:12 +00:00
parent 798bbb64db
commit 188e69aa1f
2 changed files with 7 additions and 11 deletions
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1
CHANGELOG
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@ -10,6 +10,7 @@ CHANGES:
server to client are now always fast instead of cycling from server to client are now always fast instead of cycling from
fast to 1000 ms. fast to 1000 ms.
- The server now replies to all received queries. - The server now replies to all received queries.
- Fixed segfault in server when sending version reject.
2008-08-06: 0.4.2 "Opened Zone" 2008-08-06: 0.4.2 "Opened Zone"
- Applied a few small patches from Maxim Bourmistrov and Gregor Herrmann - Applied a few small patches from Maxim Bourmistrov and Gregor Herrmann

17
src/iodined.c
View File

@ -127,7 +127,7 @@ typedef enum {
} version_ack_t; } version_ack_t;
static void static void
send_version_response(int fd, version_ack_t ack, uint32_t payload, struct user *u) send_version_response(int fd, version_ack_t ack, uint32_t payload, int userid, struct query *q)
{ {
char out[9]; char out[9];
@ -147,14 +147,9 @@ send_version_response(int fd, version_ack_t ack, uint32_t payload, struct user *
out[5] = ((payload >> 16) & 0xff); out[5] = ((payload >> 16) & 0xff);
out[6] = ((payload >> 8) & 0xff); out[6] = ((payload >> 8) & 0xff);
out[7] = ((payload) & 0xff); out[7] = ((payload) & 0xff);
if (u) { out[8] = userid & 0xff;
out[8] = u->id;
} else {
out[8] = 0;
}
write_dns(fd, q, out, sizeof(out));
write_dns(fd, &u->q, out, sizeof(out));
} }
static void static void
@ -208,14 +203,14 @@ handle_null_request(int tun_fd, int dns_fd, struct query *q)
memcpy(&(users[userid].q), q, sizeof(struct query)); memcpy(&(users[userid].q), q, sizeof(struct query));
users[userid].encoder = get_base32_encoder(); users[userid].encoder = get_base32_encoder();
send_version_response(dns_fd, VERSION_ACK, users[userid].seed, &users[userid]); send_version_response(dns_fd, VERSION_ACK, users[userid].seed, userid, q);
users[userid].q.id = 0; users[userid].q.id = 0;
} else { } else {
/* No space for another user */ /* No space for another user */
send_version_response(dns_fd, VERSION_FULL, USERS, NULL); send_version_response(dns_fd, VERSION_FULL, USERS, 0, q);
} }
} else { } else {
send_version_response(dns_fd, VERSION_NACK, VERSION, NULL); send_version_response(dns_fd, VERSION_NACK, VERSION, 0, q);
} }
} else if(in[0] == 'L' || in[0] == 'l') { } else if(in[0] == 'L' || in[0] == 'l') {
read = unpack_data(unpacked, sizeof(unpacked), &(in[1]), read - 1, b32); read = unpack_data(unpacked, sizeof(unpacked), &(in[1]), read - 1, b32);