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Ignore DCC ACCEPT if we didn't request a DCC RESUME

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Mark DCC connections that we have requested RESUME on, so that we know
whether or not to act on a DCC ACCEPT that is received.

Also fixes up a slightly wrong message in /DCC RESUME.
This commit is contained in:
Kevin Easton
2015-10-04 00:44:47 +10:00
parent c173af3f65
commit 726884b0b0
3 changed files with 19 additions and 8 deletions
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24
source/dcc.c
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@@ -1415,6 +1415,7 @@ UserList *ul = NULL;
if (autoresume && stat(fullname, &sb) != -1) {
n->transfer_orders.byteoffset = sb.st_size;
n->bytes_read = 0L;
new_d->sock.flags |= DCC_RESUME_REQ;
send_ctcp(CTCP_PRIVMSG, nick, CTCP_DCC, "RESUME %s %d %ld", n->filename, ntohs(n->remport), sb.st_size);
} else {
DCC_int *new = NULL;
@@ -3430,6 +3431,7 @@ void dcc_getfile_resume_start (char *nick, char *description, char *address, cha
{
SocketList *s;
DCC_int *n;
const DCC_List *pending;
char *tmp = NULL;
char *fullname = NULL;
struct stat sb;
@@ -3442,6 +3444,14 @@ struct stat sb;
put_it("%s", convert_output_format("$G %RDCC%n warning in dcc_getfile_resume_start", NULL));
return;
}
pending = find_dcc_pending(nick, description, NULL, DCC_FILEREAD, 0, -1);
if (!pending || !(pending->sock.flags & DCC_RESUME_REQ))
{
put_it("%s", convert_output_format("$G %RDCC%n Ignoring unsolicited ACCEPT from $0", "%s", nick));
return;
}
if (!(n = dcc_create(nick, description, NULL, 0, port?atol(port):0, DCC_FILEREAD, DCC_TWOCLIENTS|DCC_OFFER, start_dcc_get)))
return;
@@ -3486,19 +3496,15 @@ int old_dp, old_dn, old_dc;
int blocksize = 0;
user = get_dcc_args(&args, &passwd, &port, &blocksize);
if (!user)
{
put_it("%s", convert_output_format("$G %RDCC%n You must supply a nickname for DCC get", NULL, NULL));
return;
}
if (!blocksize || blocksize > MAX_DCC_BLOCK_SIZE)
blocksize = get_int_var(DCC_BLOCK_SIZE_VAR);
if (!user)
{
put_it("%s", convert_output_format("$G %RDCC%n You must supply a nickname for DCC RESUME", NULL));
return;
}
if (!blocksize || blocksize > MAX_DCC_BLOCK_SIZE)
blocksize = get_int_var(DCC_BLOCK_SIZE_VAR);
if (args && *args)
filename = args;
@@ -3557,6 +3563,8 @@ int blocksize = 0;
n->blocksize = blocksize;
n->transfer_orders.byteoffset = sb.st_size;
s->flags |= DCC_RESUME_REQ;
old_dp = doing_privmsg; old_dn = doing_notice; old_dc = in_ctcp_flag;
/* Just in case we have to fool the protocol enforcement. */
doing_privmsg = doing_notice = in_ctcp_flag = 0;