mirror of
https://github.com/nzp-team/fteqw.git
synced 2024-11-14 08:21:05 +00:00
b2f5ae8f1c
xmpp got some major tweaks. more sasl methods etc. multiple accounts. misc other tweaks. git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@4418 fc73d0e0-1445-4013-8a0c-d673dee63da5
649 lines
18 KiB
C
649 lines
18 KiB
C
#include "quakedef.h"
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#if defined(HAVE_WINSSPI)
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cvar_t *tls_ignorecertificateerrors;
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#include <windows.h>
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#define SECURITY_WIN32
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#include <security.h>
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#include <sspi.h>
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#include <schannel.h>
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//hungarian ensures we hit no macros.
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static struct
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{
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void *lib;
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SECURITY_STATUS (WINAPI *pDecryptMessage) (PCtxtHandle,PSecBufferDesc,ULONG,PULONG);
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SECURITY_STATUS (WINAPI *pEncryptMessage) (PCtxtHandle,ULONG,PSecBufferDesc,ULONG);
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SECURITY_STATUS (WINAPI *pAcquireCredentialsHandleA) (SEC_CHAR*,SEC_CHAR*,ULONG,PLUID,PVOID,SEC_GET_KEY_FN,PVOID,PCredHandle,PTimeStamp);
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SECURITY_STATUS (WINAPI *pInitializeSecurityContextA) (PCredHandle,PCtxtHandle,SEC_CHAR*,ULONG,ULONG,ULONG,PSecBufferDesc,ULONG,PCtxtHandle,PSecBufferDesc,PULONG,PTimeStamp);
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SECURITY_STATUS (WINAPI *pCompleteAuthToken) (PCtxtHandle,PSecBufferDesc);
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SECURITY_STATUS (WINAPI *pQueryContextAttributesA) (PCtxtHandle,ULONG,PVOID);
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SECURITY_STATUS (WINAPI *pFreeCredentialsHandle) (PCredHandle);
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SECURITY_STATUS (WINAPI *pDeleteSecurityContext) (PCtxtHandle);
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} secur;
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static struct
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{
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void *lib;
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BOOL (WINAPI *pCertGetCertificateChain) (HCERTCHAINENGINE,PCCERT_CONTEXT,LPFILETIME,HCERTSTORE,PCERT_CHAIN_PARA,DWORD,LPVOID,PCCERT_CHAIN_CONTEXT*);
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BOOL (WINAPI *pCertVerifyCertificateChainPolicy) (LPCSTR,PCCERT_CHAIN_CONTEXT,PCERT_CHAIN_POLICY_PARA,PCERT_CHAIN_POLICY_STATUS);
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void (WINAPI *pCertFreeCertificateChain) (PCCERT_CHAIN_CONTEXT);
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DWORD (WINAPI *pCertNameToStrA) (DWORD dwCertEncodingType, PCERT_NAME_BLOB pName, DWORD dwStrType, LPTSTR psz, DWORD csz);
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} crypt;
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static qboolean SSL_Init(void)
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{
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dllfunction_t secur_functable[] =
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{
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{(void**)&secur.pDecryptMessage, "DecryptMessage"},
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{(void**)&secur.pEncryptMessage, "EncryptMessage"},
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{(void**)&secur.pAcquireCredentialsHandleA, "AcquireCredentialsHandleA"},
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{(void**)&secur.pInitializeSecurityContextA, "InitializeSecurityContextA"},
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{(void**)&secur.pCompleteAuthToken, "CompleteAuthToken"},
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{(void**)&secur.pQueryContextAttributesA, "QueryContextAttributesA"},
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{(void**)&secur.pFreeCredentialsHandle, "FreeCredentialsHandle"},
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{(void**)&secur.pDeleteSecurityContext, "DeleteSecurityContext"},
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{NULL, NULL}
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};
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dllfunction_t crypt_functable[] =
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{
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{(void**)&crypt.pCertGetCertificateChain, "CertGetCertificateChain"},
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{(void**)&crypt.pCertVerifyCertificateChainPolicy, "CertVerifyCertificateChainPolicy"},
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{(void**)&crypt.pCertFreeCertificateChain, "CertFreeCertificateChain"},
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{(void**)&crypt.pCertNameToStrA, "CertNameToStrA"},
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{NULL, NULL}
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};
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tls_ignorecertificateerrors = Cvar_Get("tls_ignorecertificateerrors", "0", CVAR_NOTFROMSERVER, "TLS");
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if (!secur.lib)
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secur.lib = Sys_LoadLibrary("secur32.dll", secur_functable);
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if (!crypt.lib)
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crypt.lib = Sys_LoadLibrary("crypt32.dll", crypt_functable);
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return !!secur.lib && !!crypt.lib;
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}
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#define MessageAttribute (ISC_REQ_SEQUENCE_DETECT | ISC_REQ_REPLAY_DETECT | ISC_REQ_CONFIDENTIALITY | ISC_RET_EXTENDED_ERROR | ISC_REQ_ALLOCATE_MEMORY | ISC_REQ_STREAM | ISC_REQ_MANUAL_CRED_VALIDATION)
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struct sslbuf
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{
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char data[8192];
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int avail;
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int newd;
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};
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typedef struct {
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vfsfile_t funcs;
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vfsfile_t *stream;
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wchar_t wpeername[256];
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enum
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{
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HS_ESTABLISHED,
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HS_ERROR,
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HS_STARTCLIENT,
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HS_CLIENT,
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HS_STARTSERVER,
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HS_SERVER
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} handshaking;
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struct sslbuf outraw;
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struct sslbuf outcrypt;
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struct sslbuf inraw;
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struct sslbuf incrypt;
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CredHandle cred;
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SecHandle sechnd;
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int headersize, footersize;
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char headerdata[1024], footerdata[1024];
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} sslfile_t;
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static int SSPI_CopyIntoBuffer(struct sslbuf *buf, const void *data, unsigned int bytes)
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{
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if (bytes > sizeof(buf->data) - buf->avail)
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bytes = sizeof(buf->data) - buf->avail;
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memcpy(buf->data + buf->avail, data, bytes);
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buf->avail += bytes;
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return bytes;
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}
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static void SSPI_Error(sslfile_t *f, char *error)
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{
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Sys_Printf("%s", error);
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if (f->stream)
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VFS_CLOSE(f->stream);
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secur.pDeleteSecurityContext(&f->sechnd);
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secur.pFreeCredentialsHandle(&f->cred);
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f->stream = NULL;
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}
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static void SSPI_TryFlushCryptOut(sslfile_t *f)
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{
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int sent;
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if (f->outcrypt.avail)
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sent = VFS_WRITE(f->stream, f->outcrypt.data, f->outcrypt.avail);
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else
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return;
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if (sent > 0)
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{
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memmove(f->outcrypt.data, f->outcrypt.data + sent, f->outcrypt.avail - sent);
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f->outcrypt.avail -= sent;
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}
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}
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static int SSPI_CheckNewInCrypt(sslfile_t *f)
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{
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int newd;
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if (!f->stream)
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return -1;
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newd = VFS_READ(f->stream, f->incrypt.data+f->incrypt.avail, sizeof(f->incrypt.data) - f->incrypt.avail);
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if (newd < 0)
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return newd;
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else
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f->incrypt.avail += newd;
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return 0;
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}
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//convert inbound crypt->data
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static void SSPI_Decode(sslfile_t *f)
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{
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SECURITY_STATUS ss;
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SecBufferDesc BuffDesc;
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SecBuffer SecBuff[4];
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ULONG ulQop = 0;
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SecBuffer *data = NULL;
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SecBuffer *extra = NULL;
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int i;
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if (!f->incrypt.avail)
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return;
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BuffDesc.ulVersion = SECBUFFER_VERSION;
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BuffDesc.cBuffers = 4;
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BuffDesc.pBuffers = SecBuff;
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SecBuff[0].BufferType = SECBUFFER_DATA;
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SecBuff[0].cbBuffer = f->incrypt.avail;
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SecBuff[0].pvBuffer = f->incrypt.data;
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SecBuff[1].BufferType = SECBUFFER_EMPTY; //space for header
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SecBuff[2].BufferType = SECBUFFER_EMPTY; //space for footer
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SecBuff[3].BufferType = SECBUFFER_EMPTY; //space for extra marker
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ss = secur.pDecryptMessage(&f->sechnd, &BuffDesc, 0, &ulQop);
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if (ss < 0)
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{
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if (ss == SEC_E_INCOMPLETE_MESSAGE)
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return; //no error if its incomplete, we can just get more data later on.
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SSPI_Error(f, "DecryptMessage failed\n");
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return;
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}
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for (i = 0; i < BuffDesc.cBuffers; i++)
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{
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if (SecBuff[i].BufferType == SECBUFFER_DATA && !data)
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data = &SecBuff[i];
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if (SecBuff[i].BufferType == SECBUFFER_EXTRA && !extra)
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extra = &SecBuff[i];
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}
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//copy the data out to the result, yay.
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if (data)
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SSPI_CopyIntoBuffer(&f->inraw, data->pvBuffer, data->cbBuffer);
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//retain the extra. if there's no extra then mark it so.
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if (extra)
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{
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memmove(f->incrypt.data, f->incrypt.data + (f->incrypt.avail - extra->cbBuffer), extra->cbBuffer);
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f->incrypt.avail = extra->cbBuffer;
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}
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else
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f->incrypt.avail = 0;
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}
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//convert outgoing data->crypt
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static void SSPI_Encode(sslfile_t *f)
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{
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SECURITY_STATUS ss;
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SecBufferDesc BuffDesc;
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SecBuffer SecBuff[4];
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ULONG ulQop = 0;
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if (f->outcrypt.avail)
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{
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SSPI_TryFlushCryptOut(f);
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if (f->outcrypt.avail)
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return; //don't flood too much
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}
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//don't corrupt the handshake data.
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if (f->handshaking)
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return;
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if (!f->outraw.avail)
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return;
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BuffDesc.ulVersion = SECBUFFER_VERSION;
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BuffDesc.cBuffers = 4;
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BuffDesc.pBuffers = SecBuff;
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SecBuff[0].BufferType = SECBUFFER_STREAM_HEADER;
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SecBuff[0].cbBuffer = f->headersize;
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SecBuff[0].pvBuffer = f->headerdata;
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SecBuff[1].BufferType = SECBUFFER_DATA;
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SecBuff[1].cbBuffer = f->outraw.avail;
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SecBuff[1].pvBuffer = f->outraw.data;
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SecBuff[2].BufferType = SECBUFFER_STREAM_TRAILER;
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SecBuff[2].cbBuffer = f->footersize;
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SecBuff[2].pvBuffer = f->footerdata;
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SecBuff[3].BufferType = SECBUFFER_EMPTY;
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ss = secur.pEncryptMessage(&f->sechnd, ulQop, &BuffDesc, 0);
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if (ss < 0)
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{
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SSPI_Error(f, "EncryptMessage failed\n");
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return;
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}
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f->outraw.avail = 0;
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//fixme: these should be made non-fatal.
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if (SSPI_CopyIntoBuffer(&f->outcrypt, SecBuff[0].pvBuffer, SecBuff[0].cbBuffer) < SecBuff[0].cbBuffer)
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{
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SSPI_Error(f, "crypt buffer overflowed\n");
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return;
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}
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if (SSPI_CopyIntoBuffer(&f->outcrypt, SecBuff[1].pvBuffer, SecBuff[1].cbBuffer) < SecBuff[1].cbBuffer)
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{
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SSPI_Error(f, "crypt buffer overflowed\n");
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return;
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}
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if (SSPI_CopyIntoBuffer(&f->outcrypt, SecBuff[2].pvBuffer, SecBuff[2].cbBuffer) < SecBuff[2].cbBuffer)
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{
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SSPI_Error(f, "crypt buffer overflowed\n");
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return;
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}
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SSPI_TryFlushCryptOut(f);
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}
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static DWORD VerifyServerCertificate(PCCERT_CONTEXT pServerCert, PWSTR pwszServerName, DWORD dwCertFlags)
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{
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HTTPSPolicyCallbackData polHttps;
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CERT_CHAIN_POLICY_PARA PolicyPara;
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CERT_CHAIN_POLICY_STATUS PolicyStatus;
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CERT_CHAIN_PARA ChainPara;
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PCCERT_CHAIN_CONTEXT pChainContext;
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DWORD Status;
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LPSTR rgszUsages[] =
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{
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szOID_PKIX_KP_SERVER_AUTH,
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szOID_SERVER_GATED_CRYPTO,
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szOID_SGC_NETSCAPE
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};
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DWORD cUsages = sizeof(rgszUsages) / sizeof(LPSTR);
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if(pServerCert == NULL)
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return SEC_E_WRONG_PRINCIPAL;
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if(!*pwszServerName)
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return SEC_E_WRONG_PRINCIPAL;
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// Build certificate chain.
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memset(&ChainPara, 0, sizeof(ChainPara));
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ChainPara.cbSize = sizeof(ChainPara);
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ChainPara.RequestedUsage.dwType = USAGE_MATCH_TYPE_OR;
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ChainPara.RequestedUsage.Usage.cUsageIdentifier = cUsages;
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ChainPara.RequestedUsage.Usage.rgpszUsageIdentifier = rgszUsages;
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if (!crypt.pCertGetCertificateChain(NULL, pServerCert, NULL, pServerCert->hCertStore, &ChainPara, 0, NULL, &pChainContext))
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{
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Status = GetLastError();
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Sys_Printf("Error 0x%x returned by CertGetCertificateChain!\n", (unsigned int)Status);
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}
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else
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{
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// Validate certificate chain.
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memset(&polHttps, 0, sizeof(HTTPSPolicyCallbackData));
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polHttps.cbStruct = sizeof(HTTPSPolicyCallbackData);
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polHttps.dwAuthType = AUTHTYPE_SERVER;
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polHttps.fdwChecks = dwCertFlags;
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polHttps.pwszServerName = pwszServerName;
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memset(&PolicyPara, 0, sizeof(PolicyPara));
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PolicyPara.cbSize = sizeof(PolicyPara);
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PolicyPara.pvExtraPolicyPara = &polHttps;
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memset(&PolicyStatus, 0, sizeof(PolicyStatus));
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PolicyStatus.cbSize = sizeof(PolicyStatus);
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if (!crypt.pCertVerifyCertificateChainPolicy(CERT_CHAIN_POLICY_SSL, pChainContext, &PolicyPara, &PolicyStatus))
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{
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Status = GetLastError();
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Sys_Printf("Error 0x%x returned by CertVerifyCertificateChainPolicy!\n", (unsigned int)Status);
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}
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else
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{
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if (PolicyStatus.dwError)
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{
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char fmsg[512];
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char *err;
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Status = PolicyStatus.dwError;
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switch (Status)
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{
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case CERT_E_EXPIRED: err = "CERT_E_EXPIRED"; break;
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case CERT_E_VALIDITYPERIODNESTING: err = "CERT_E_VALIDITYPERIODNESTING"; break;
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case CERT_E_ROLE: err = "CERT_E_ROLE"; break;
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case CERT_E_PATHLENCONST: err = "CERT_E_PATHLENCONST"; break;
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case CERT_E_CRITICAL: err = "CERT_E_CRITICAL"; break;
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case CERT_E_PURPOSE: err = "CERT_E_PURPOSE"; break;
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case CERT_E_ISSUERCHAINING: err = "CERT_E_ISSUERCHAINING"; break;
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case CERT_E_MALFORMED: err = "CERT_E_MALFORMED"; break;
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case CERT_E_UNTRUSTEDROOT: err = "CERT_E_UNTRUSTEDROOT"; break;
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case CERT_E_CHAINING: err = "CERT_E_CHAINING"; break;
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case TRUST_E_FAIL: err = "TRUST_E_FAIL"; break;
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case CERT_E_REVOKED: err = "CERT_E_REVOKED"; break;
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case CERT_E_UNTRUSTEDTESTROOT: err = "CERT_E_UNTRUSTEDTESTROOT"; break;
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case CERT_E_REVOCATION_FAILURE: err = "CERT_E_REVOCATION_FAILURE"; break;
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case CERT_E_CN_NO_MATCH:
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err = fmsg;
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Q_strncpyz(fmsg, "Certificate is for ", sizeof(fmsg));
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crypt.pCertNameToStrA(X509_ASN_ENCODING, &pServerCert->pCertInfo->Subject, 0, fmsg+strlen(fmsg), sizeof(fmsg)-strlen(fmsg));
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break;
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case CERT_E_WRONG_USAGE: err = "CERT_E_WRONG_USAGE"; break;
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default: err = "(unknown)"; break;
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}
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Con_Printf("Error verifying certificate for '%S': %s\n", pwszServerName, err);
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if (tls_ignorecertificateerrors->ival)
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{
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Con_Printf("pretending it didn't happen... (tls_ignorecertificateerrors is set)\n");
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Status = SEC_E_OK;
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}
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}
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else
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Status = SEC_E_OK;
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}
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crypt.pCertFreeCertificateChain(pChainContext);
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}
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return Status;
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}
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static void SSPI_Handshake (sslfile_t *f)
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{
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SECURITY_STATUS ss;
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TimeStamp Lifetime;
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SecBufferDesc OutBuffDesc;
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SecBuffer OutSecBuff;
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SecBufferDesc InBuffDesc;
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SecBuffer InSecBuff[2];
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ULONG ContextAttributes;
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SCHANNEL_CRED SchannelCred;
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if (f->outcrypt.avail)
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{
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//don't let things build up too much
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SSPI_TryFlushCryptOut(f);
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if (f->outcrypt.avail)
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return;
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}
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OutBuffDesc.ulVersion = SECBUFFER_VERSION;
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OutBuffDesc.cBuffers = 1;
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OutBuffDesc.pBuffers = &OutSecBuff;
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OutSecBuff.cbBuffer = sizeof(f->outcrypt.data) - f->outcrypt.avail;
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OutSecBuff.BufferType = SECBUFFER_TOKEN;
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OutSecBuff.pvBuffer = f->outcrypt.data + f->outcrypt.avail;
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if (f->handshaking == HS_STARTCLIENT)
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{
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//no input data yet.
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f->handshaking = HS_CLIENT;
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memset(&SchannelCred, 0, sizeof(SchannelCred));
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SchannelCred.dwVersion = SCHANNEL_CRED_VERSION;
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SchannelCred.grbitEnabledProtocols = SP_PROT_TLS1 | SP_PROT_SSL3;
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SchannelCred.dwFlags |= SCH_CRED_NO_DEFAULT_CREDS; /*don't use windows login info or anything*/
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ss = secur.pAcquireCredentialsHandleA (NULL, UNISP_NAME_A, SECPKG_CRED_OUTBOUND, NULL, &SchannelCred, NULL, NULL, &f->cred, &Lifetime);
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if (ss < 0)
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{
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SSPI_Error(f, "AcquireCredentialsHandle failed\n");
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return;
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}
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ss = secur.pInitializeSecurityContextA (&f->cred, NULL, NULL, MessageAttribute, 0, SECURITY_NATIVE_DREP, NULL, 0, &f->sechnd, &OutBuffDesc, &ContextAttributes, &Lifetime);
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}
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else
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{
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//only if we actually have data.
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if (!f->incrypt.avail)
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return;
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InBuffDesc.ulVersion = SECBUFFER_VERSION;
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InBuffDesc.cBuffers = 2;
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InBuffDesc.pBuffers = InSecBuff;
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InSecBuff[0].BufferType = SECBUFFER_TOKEN;
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InSecBuff[0].cbBuffer = f->incrypt.avail;
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InSecBuff[0].pvBuffer = f->incrypt.data;
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InSecBuff[1].BufferType = SECBUFFER_EMPTY;
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InSecBuff[1].pvBuffer = NULL;
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InSecBuff[1].cbBuffer = 0;
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ss = secur.pInitializeSecurityContextA (&f->cred, &f->sechnd, NULL, MessageAttribute, 0, SECURITY_NATIVE_DREP, &InBuffDesc, 0, &f->sechnd, &OutBuffDesc, &ContextAttributes, &Lifetime);
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if (ss == SEC_E_INCOMPLETE_MESSAGE)
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return;
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//any extra data should still remain for the next time around. this might be more handshake data or payload data.
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if (InSecBuff[1].BufferType == SECBUFFER_EXTRA)
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{
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memmove(f->incrypt.data, f->incrypt.data + (f->incrypt.avail - InSecBuff[1].cbBuffer), InSecBuff[1].cbBuffer);
|
|
f->incrypt.avail = InSecBuff[1].cbBuffer;
|
|
}
|
|
else f->incrypt.avail = 0;
|
|
}
|
|
|
|
if (ss == SEC_I_INCOMPLETE_CREDENTIALS)
|
|
{
|
|
SSPI_Error(f, "server requires credentials\n");
|
|
return;
|
|
}
|
|
|
|
if (ss < 0)
|
|
{
|
|
SSPI_Error(f, "InitializeSecurityContext failed\n");
|
|
return;
|
|
}
|
|
|
|
if ((SEC_I_COMPLETE_NEEDED == ss) || (SEC_I_COMPLETE_AND_CONTINUE == ss))
|
|
{
|
|
ss = secur.pCompleteAuthToken (&f->sechnd, &OutBuffDesc);
|
|
if (ss < 0)
|
|
{
|
|
SSPI_Error(f, "CompleteAuthToken failed\n");
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (SSPI_CopyIntoBuffer(&f->outcrypt, OutSecBuff.pvBuffer, OutSecBuff.cbBuffer) < OutSecBuff.cbBuffer)
|
|
{
|
|
SSPI_Error(f, "crypt overflow\n");
|
|
return;
|
|
}
|
|
|
|
//send early, send often.
|
|
SSPI_TryFlushCryptOut(f);
|
|
|
|
//its all okay and established if we get this far.
|
|
if (ss == SEC_E_OK)
|
|
{
|
|
SecPkgContext_StreamSizes strsizes;
|
|
CERT_CONTEXT *remotecert;
|
|
|
|
secur.pQueryContextAttributesA(&f->sechnd, SECPKG_ATTR_STREAM_SIZES, &strsizes);
|
|
f->headersize = strsizes.cbHeader;
|
|
f->footersize = strsizes.cbTrailer;
|
|
f->handshaking = HS_ESTABLISHED;
|
|
|
|
if (*f->wpeername)
|
|
{
|
|
ss = secur.pQueryContextAttributesA(&f->sechnd, SECPKG_ATTR_REMOTE_CERT_CONTEXT, &remotecert);
|
|
if (ss != SEC_E_OK)
|
|
{
|
|
f->handshaking = HS_ERROR;
|
|
SSPI_Error(f, "unable to read server's certificate\n");
|
|
return;
|
|
}
|
|
if (VerifyServerCertificate(remotecert, f->wpeername, 0))
|
|
{
|
|
f->handshaking = HS_ERROR;
|
|
SSPI_Error(f, "Error validating certificante\n");
|
|
}
|
|
}
|
|
else
|
|
Sys_Printf("SSL/TLS Server name not specified, skipping verification\n");
|
|
|
|
|
|
SSPI_Encode(f);
|
|
}
|
|
}
|
|
|
|
static int QDECL SSPI_ReadBytes (struct vfsfile_s *file, void *buffer, int bytestoread)
|
|
{
|
|
sslfile_t *f = (sslfile_t *)file;
|
|
int err = SSPI_CheckNewInCrypt(f);
|
|
|
|
if (f->handshaking)
|
|
{
|
|
SSPI_Handshake(f);
|
|
return err;
|
|
}
|
|
|
|
SSPI_Encode(f);
|
|
|
|
SSPI_Decode(f);
|
|
|
|
bytestoread = min(bytestoread, f->inraw.avail);
|
|
if (bytestoread)
|
|
{
|
|
memcpy(buffer, f->inraw.data, bytestoread);
|
|
f->inraw.avail -= bytestoread;
|
|
memmove(f->inraw.data, f->inraw.data + bytestoread, f->inraw.avail);
|
|
}
|
|
else
|
|
{
|
|
if (err)
|
|
return err;
|
|
}
|
|
return bytestoread;
|
|
}
|
|
static int QDECL SSPI_WriteBytes (struct vfsfile_s *file, const void *buffer, int bytestowrite)
|
|
{
|
|
sslfile_t *f = (sslfile_t *)file;
|
|
|
|
bytestowrite = SSPI_CopyIntoBuffer(&f->outraw, buffer, bytestowrite);
|
|
|
|
if (f->handshaking)
|
|
{
|
|
SSPI_CheckNewInCrypt(f); //make sure its ticking over
|
|
SSPI_Handshake(f);
|
|
}
|
|
else
|
|
{
|
|
SSPI_Encode(f);
|
|
}
|
|
|
|
return bytestowrite;
|
|
}
|
|
static qboolean QDECL SSPI_Seek (struct vfsfile_s *file, unsigned long pos)
|
|
{
|
|
SSPI_Error((sslfile_t*)file, "unable to seek on streams\n");
|
|
return false;
|
|
}
|
|
static unsigned long QDECL SSPI_Tell (struct vfsfile_s *file)
|
|
{
|
|
SSPI_Error((sslfile_t*)file, "unable to seek on streams\n");
|
|
return 0;
|
|
}
|
|
static unsigned long QDECL SSPI_GetLen (struct vfsfile_s *file)
|
|
{
|
|
return 0;
|
|
}
|
|
static void QDECL SSPI_Close (struct vfsfile_s *file)
|
|
{
|
|
SSPI_Error((sslfile_t*)file, "");
|
|
Z_Free(file);
|
|
}
|
|
|
|
#include <wchar.h>
|
|
vfsfile_t *FS_OpenSSL(const char *hostname, vfsfile_t *source, qboolean server)
|
|
{
|
|
sslfile_t *newf;
|
|
int i = 0;
|
|
int err;
|
|
unsigned int c;
|
|
|
|
if (!source || !SSL_Init())
|
|
{
|
|
VFS_CLOSE(source);
|
|
return NULL;
|
|
}
|
|
if (!hostname)
|
|
hostname = "";
|
|
|
|
if (server) //unsupported
|
|
{
|
|
VFS_CLOSE(source);
|
|
return NULL;
|
|
}
|
|
|
|
newf = Z_Malloc(sizeof(*newf));
|
|
while(*hostname)
|
|
{
|
|
c = utf8_decode(&err, hostname, (void*)&hostname);
|
|
if (c > WCHAR_MAX)
|
|
err = true; //no 16bit surrogates. they're evil.
|
|
else if (i == sizeof(newf->wpeername)/sizeof(newf->wpeername[0]) - 1)
|
|
err = true; //no space to store it
|
|
else
|
|
newf->wpeername[i++] = c;
|
|
if (err)
|
|
{
|
|
Z_Free(newf);
|
|
VFS_CLOSE(source);
|
|
return NULL;
|
|
}
|
|
}
|
|
newf->wpeername[i] = 0;
|
|
newf->handshaking = server?HS_STARTSERVER:HS_STARTCLIENT;
|
|
newf->stream = source;
|
|
newf->funcs.Close = SSPI_Close;
|
|
newf->funcs.Flush = NULL;
|
|
newf->funcs.GetLen = SSPI_GetLen;
|
|
newf->funcs.ReadBytes = SSPI_ReadBytes;
|
|
newf->funcs.Seek = SSPI_Seek;
|
|
newf->funcs.Tell = SSPI_Tell;
|
|
newf->funcs.WriteBytes = SSPI_WriteBytes;
|
|
newf->funcs.seekingisabadplan = true;
|
|
|
|
return &newf->funcs;
|
|
}
|
|
#endif
|