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ftpd: Check return status of getsockname()

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Update #3530.
This commit is contained in:
Sebastian Huber
2018-10-08 08:14:40 +02:00
parent be8de0ff46
commit 2f784d72d3
1 changed files with 22 additions and 18 deletions
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40
cpukit/ftpd/ftpd.c
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@@ -1531,27 +1531,31 @@ command_pasv(FTPD_SessionInfo_t *info)
syslog(LOG_ERR, "ftpd: Error binding PASV socket: %s", serr());
else if (0 > listen(s, 1))
syslog(LOG_ERR, "ftpd: Error listening on PASV socket: %s", serr());
else if(set_socket_timeout(s, info->idle))
else if (set_socket_timeout(s, info->idle))
{
char buf[FTPD_BUFSIZE];
unsigned char const *ip, *p;
getsockname(s, (struct sockaddr *)&addr, &addrLen);
ip = (unsigned char const*)&(addr.sin_addr);
p = (unsigned char const*)&(addr.sin_port);
snprintf(buf, FTPD_BUFSIZE, "Entering passive mode (%u,%u,%u,%u,%u,%u).",
ip[0], ip[1], ip[2], ip[3], p[0], p[1]);
send_reply(info, 227, buf);
info->pasv_socket = accept(s, (struct sockaddr *)&addr, &addrLen);
if (0 > info->pasv_socket)
syslog(LOG_ERR, "ftpd: Error accepting PASV connection: %s", serr());
else
if (0 == getsockname(s, (struct sockaddr *)&addr, &addrLen))
{
close_socket(s);
s = -1;
err = 0;
char buf[FTPD_BUFSIZE];
unsigned char const *ip, *p;
ip = (unsigned char const*)&(addr.sin_addr);
p = (unsigned char const*)&(addr.sin_port);
snprintf(buf, FTPD_BUFSIZE, "Entering passive mode (%u,%u,%u,%u,%u,%u).",
ip[0], ip[1], ip[2], ip[3], p[0], p[1]);
send_reply(info, 227, buf);
info->pasv_socket = accept(s, (struct sockaddr *)&addr, &addrLen);
if (0 > info->pasv_socket)
syslog(LOG_ERR, "ftpd: Error accepting PASV connection: %s", serr());
else
{
close_socket(s);
s = -1;
err = 0;
}
}
else
syslog(LOG_ERR, "ftpd: Cannot get socket name: %s", serr());
}
}
if(err)