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fix segfault in ftp.c (ftp_loop_internal)

This commit is contained in:
Tim Ruehsen 2013-06-19 10:02:20 +02:00 committed by Giuseppe Scrivano
parent 7f43748544
commit 4df7703d62
3 changed files with 22 additions and 15 deletions
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6
src/ChangeLog
View File

@ -1,3 +1,9 @@
2013-06-19 Tim Ruehsen <tim.ruehsen@gmx.de>
* connect.c (socket_ip_address): zero out ip address structure to
avoid access to uninitialized values by inet_ntop().
* ftp.c (ftp_loop_internal): fix segfault caused by warc_tmp NULL pointer.
2013-05-21 Ray Satiro <raysatiro@yahoo.com>
* url.c (url_file_name): Use MAX_PATH in Windows.

1
src/connect.c
View File

@ -559,6 +559,7 @@ socket_ip_address (int sock, ip_address *ip, int endpoint)
if (ret < 0)
return false;
memset(ip, 0, sizeof(ip_address));
ip->family = sockaddr->sa_family;
switch (sockaddr->sa_family)
{

30
src/ftp.c
View File

@ -1449,21 +1449,6 @@ ftp_loop_internal (struct url *u, struct fileinfo *f, ccon *con, char **local_fi
orig_lp = con->cmd & LEAVE_PENDING ? 1 : 0;
/* For file RETR requests, we can write a WARC record.
We record the file contents to a temporary file. */
if (warc_enabled && (con->cmd & DO_RETR))
{
warc_tmp = warc_tempfile ();
if (warc_tmp == NULL)
return WARC_TMP_FOPENERR;
if (!con->proxy && con->csock != -1)
{
warc_ip = (ip_address *) alloca (sizeof (ip_address));
socket_ip_address (con->csock, warc_ip, ENDPOINT_PEER);
}
}
/* THE loop. */
do
{
@ -1491,6 +1476,21 @@ ftp_loop_internal (struct url *u, struct fileinfo *f, ccon *con, char **local_fi
con->cmd |= DO_CWD;
}
/* For file RETR requests, we can write a WARC record.
We record the file contents to a temporary file. */
if (warc_enabled && (con->cmd & DO_RETR) && warc_tmp == NULL)
{
warc_tmp = warc_tempfile ();
if (warc_tmp == NULL)
return WARC_TMP_FOPENERR;
if (!con->proxy && con->csock != -1)
{
warc_ip = (ip_address *) alloca (sizeof (ip_address));
socket_ip_address (con->csock, warc_ip, ENDPOINT_PEER);
}
}
/* Decide whether or not to restart. */
if (con->cmd & DO_LIST)
restval = 0;