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sesman: scpv0, accept variable length data fields

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speidy 2017-11-22 02:32:28 +02:00 committed by metalefty
parent 3de3a4fab5
commit d958d1f018
1 changed files with 25 additions and 7 deletions
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32
sesman/libscp/libscp_v0.c
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@ -161,7 +161,7 @@ scp_v0s_accept(struct SCP_CONNECTION *c, struct SCP_SESSION **s, int skipVchk)
struct SCP_SESSION *session = 0;
tui16 sz;
tui32 code = 0;
char buf[257];
char *buf = 0;
if (!skipVchk)
{
@ -226,27 +226,31 @@ scp_v0s_accept(struct SCP_CONNECTION *c, struct SCP_SESSION **s, int skipVchk)
/* reading username */
in_uint16_be(c->in_s, sz);
buf[sz] = '\0';
buf = g_new0(char, sz);
in_uint8a(c->in_s, buf, sz);
buf[sz] = '\0';
if (0 != scp_session_set_username(session, buf))
{
scp_session_destroy(session);
log_message(LOG_LEVEL_WARNING, "[v0:%d] connection aborted: error setting username", __LINE__);
g_free(buf);
return SCP_SERVER_STATE_INTERNAL_ERR;
}
g_free(buf);
/* reading password */
in_uint16_be(c->in_s, sz);
buf[sz] = '\0';
buf = g_new0(char, sz);
in_uint8a(c->in_s, buf, sz);
buf[sz] = '\0';
if (0 != scp_session_set_password(session, buf))
{
scp_session_destroy(session);
log_message(LOG_LEVEL_WARNING, "[v0:%d] connection aborted: error setting password", __LINE__);
g_free(buf);
return SCP_SERVER_STATE_INTERNAL_ERR;
}
g_free(buf);
/* width */
in_uint16_be(c->in_s, sz);
@ -272,9 +276,11 @@ scp_v0s_accept(struct SCP_CONNECTION *c, struct SCP_SESSION **s, int skipVchk)
if (sz > 0)
{
buf = g_new0(char, sz);
in_uint8a(c->in_s, buf, sz);
buf[sz] = '\0';
scp_session_set_domain(session, buf);
g_free(buf);
}
}
@ -285,9 +291,11 @@ scp_v0s_accept(struct SCP_CONNECTION *c, struct SCP_SESSION **s, int skipVchk)
if (sz > 0)
{
buf = g_new0(char, sz);
in_uint8a(c->in_s, buf, sz);
buf[sz] = '\0';
scp_session_set_program(session, buf);
g_free(buf);
}
}
@ -298,9 +306,11 @@ scp_v0s_accept(struct SCP_CONNECTION *c, struct SCP_SESSION **s, int skipVchk)
if (sz > 0)
{
buf = g_new0(char, sz);
in_uint8a(c->in_s, buf, sz);
buf[sz] = '\0';
scp_session_set_directory(session, buf);
g_free(buf);
}
}
@ -311,9 +321,11 @@ scp_v0s_accept(struct SCP_CONNECTION *c, struct SCP_SESSION **s, int skipVchk)
if (sz > 0)
{
buf = g_new0(char, sz);
in_uint8a(c->in_s, buf, sz);
buf[sz] = '\0';
scp_session_set_client_ip(session, buf);
g_free(buf);
}
}
}
@ -332,29 +344,35 @@ scp_v0s_accept(struct SCP_CONNECTION *c, struct SCP_SESSION **s, int skipVchk)
scp_session_set_type(session, SCP_GW_AUTHENTICATION);
/* reading username */
in_uint16_be(c->in_s, sz);
buf[sz] = '\0';
buf = g_new0(char, sz);
in_uint8a(c->in_s, buf, sz);
buf[sz] = '\0';
/* g_writeln("Received user name: %s",buf); */
if (0 != scp_session_set_username(session, buf))
{
scp_session_destroy(session);
/* until syslog merge log_message(s_log, LOG_LEVEL_WARNING, "[v0:%d] connection aborted: error setting username", __LINE__);*/
g_free(buf);
return SCP_SERVER_STATE_INTERNAL_ERR;
}
g_free(buf);
/* reading password */
in_uint16_be(c->in_s, sz);
buf[sz] = '\0';
buf = g_new0(char, sz);
in_uint8a(c->in_s, buf, sz);
buf[sz] = '\0';
/* g_writeln("Received password: %s",buf); */
if (0 != scp_session_set_password(session, buf))
{
scp_session_destroy(session);
/* until syslog merge log_message(s_log, LOG_LEVEL_WARNING, "[v0:%d] connection aborted: error setting password", __LINE__); */
g_free(buf);
return SCP_SERVER_STATE_INTERNAL_ERR;
}
g_free(buf);
}
else
{