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jsorg71 2005-01-07 00:56:38 +00:00
parent ae38cee2f0
commit de80c9ec17
4 changed files with 1260 additions and 0 deletions
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42
common/arch.h Normal file
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/*
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
xrdp: A Remote Desktop Protocol server.
Copyright (C) Jay Sorg 2004
*/
/* check endianess */
#if __BYTE_ORDER == __LITTLE_ENDIAN
#define L_ENDIAN
#elif __BYTE_ORDER == __BIG_ENDIAN
#define B_ENDIAN
#endif
/* check if we need to align data */
#if defined(__sparc__) || defined(__alpha__) || defined(__hppa__) || \
defined(__AIX__) || defined(__PPC__) || defined(__mips__) || \
defined(__ia64__)
#define NEED_ALIGN
#endif
/* defines for thread creation factor function */
#ifdef _WIN32
#define THREAD_RV unsigned long
#define THREAD_CC __stdcall
#else
#define THREAD_RV void*
#define THREAD_CC
#endif

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common/os_calls.c Normal file
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/*
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
xrdp: A Remote Desktop Protocol server.
Copyright (C) Jay Sorg 2004
generic operating system calls
*/
#ifdef _WIN32
#include <windows.h>
#include <winsock.h>
#else
#include <unistd.h>
#include <pthread.h>
#include <errno.h>
#include <netinet/in.h>
#include <netinet/tcp.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <sys/time.h>
#include <sys/types.h>
#include <dlfcn.h>
#include <arpa/inet.h>
#include <netdb.h>
#endif
#include <stdlib.h>
#include <string.h>
#include <stdarg.h>
#include <stdio.h>
#include <fcntl.h>
#include <openssl/rc4.h>
#include <openssl/md5.h>
#include <openssl/sha.h>
#include <openssl/bn.h>
//#define MEMLEAK
#ifdef _WIN32
static CRITICAL_SECTION g_term_mutex;
#else
static pthread_mutex_t g_term_mutex = PTHREAD_MUTEX_INITIALIZER;
#endif
static int g_term = 0;
#ifdef MEMLEAK
#include "xrdp.h"
#endif
#ifdef MEMLEAK
static int g_memsize = 0;
static int g_memid = 0;
static struct xrdp_list* g_memlist = 0;
#endif
/*****************************************************************************/
int g_init_system(void)
{
#ifdef _WIN32
WSADATA w;
WSAStartup(2, &w);
InitializeCriticalSection(&g_term_mutex);
#endif
#ifdef MEMLEAK
g_memlist = xrdp_list_create();
printf("some info\n\r");
printf("sizeof xrdp_bitmap is %d\n\r", sizeof(struct xrdp_bitmap));
printf("sizeof xrdp_wm is %d\n\r", sizeof(struct xrdp_wm));
printf("sizeof stream is %d\n\r", sizeof(struct stream));
#endif
return 0;
}
/*****************************************************************************/
int g_exit_system(void)
{
#ifdef _WIN32
WSACleanup();
DeleteCriticalSection(&g_term_mutex);
#endif
#ifdef MEMLEAK
int i;
struct xrdp_mem* p;
for (i = 0; i < g_memlist->count; i++)
{
p = (struct xrdp_mem*)xrdp_list_get_item(g_memlist, i);
g_printf("leak size %d id %d\n\r", p->size, p->id);
}
g_printf("mem %d\n\r", g_memsize);
xrdp_list_delete(g_memlist);
g_memlist = 0;
#endif
return 0;
}
/*****************************************************************************/
void* g_malloc(int size, int zero)
{
#ifdef MEMLEAK
char* rv;
struct xrdp_mem* p;
rv = (char*)malloc(size + sizeof(struct xrdp_mem));
if (zero)
memset(rv, 0, size + sizeof(struct xrdp_mem));
g_memsize += size;
p = (struct xrdp_mem*)rv;
p->size = size;
p->id = g_memid;
if (g_memlist != 0)
xrdp_list_add_item(g_memlist, (int)p);
g_memid++;
return rv + sizeof(struct xrdp_mem);
#else
char* rv;
rv = (char*)malloc(size);
if (zero)
memset(rv, 0, size);
return rv;
#endif
}
/*****************************************************************************/
void* g_malloc1(int size, int zero)
{
char* rv;
rv = (char*)malloc(size);
if (zero)
memset(rv, 0, size);
return rv;
}
/*****************************************************************************/
void g_free(void* ptr)
{
#ifdef MEMLEAK
struct xrdp_mem* p;
int i;
if (ptr != 0)
{
p = (struct xrdp_mem*)(((char*)ptr) - sizeof(struct xrdp_mem));
g_memsize -= p->size;
i = xrdp_list_index_of(g_memlist, (int)p);
if (i >= 0)
xrdp_list_remove_item(g_memlist, i);
free(p);
}
#else
if (ptr != 0)
{
free(ptr);
}
#endif
}
/*****************************************************************************/
void g_free1(void* ptr)
{
if (ptr != 0)
{
free(ptr);
}
}
/*****************************************************************************/
void g_printf(char* format, ...)
{
va_list ap;
va_start(ap, format);
vfprintf(stdout, format, ap);
va_end(ap);
}
/*****************************************************************************/
void g_sprintf(char* dest, char* format, ...)
{
va_list ap;
va_start(ap, format);
vsprintf(dest, format, ap);
va_end(ap);
}
/*****************************************************************************/
/* produce a hex dump */
void g_hexdump(char* p, int len)
{
unsigned char* line;
int i;
int thisline;
int offset;
line = (unsigned char*)p;
offset = 0;
while (offset < len)
{
printf("%04x ", offset);
thisline = len - offset;
if (thisline > 16)
thisline = 16;
for (i = 0; i < thisline; i++)
printf("%02x ", line[i]);
for (; i < 16; i++)
printf(" ");
for (i = 0; i < thisline; i++)
printf("%c", (line[i] >= 0x20 && line[i] < 0x7f) ? line[i] : '.');
printf("\n");
offset += thisline;
line += thisline;
}
}
/*****************************************************************************/
void g_memset(void* ptr, int val, int size)
{
memset(ptr, val, size);
}
/*****************************************************************************/
void g_memcpy(void* d_ptr, const void* s_ptr, int size)
{
memcpy(d_ptr, s_ptr, size);
}
/*****************************************************************************/
int g_getchar(void)
{
return getchar();
}
/*****************************************************************************/
int g_tcp_socket(void)
{
int rv;
int i;
i = 1;
rv = socket(PF_INET, SOCK_STREAM, 0);
setsockopt(rv, IPPROTO_TCP, TCP_NODELAY, (void*)&i, sizeof(i));
return rv;
}
/*****************************************************************************/
int g_tcp_local_socket(void)
{
int rv;
rv = socket(PF_LOCAL, SOCK_STREAM, 0);
return rv;
}
/*****************************************************************************/
void g_tcp_close(int sck)
{
if (sck == 0)
return;
#ifdef _WIN32
closesocket(sck);
#else
close(sck);
#endif
}
/*****************************************************************************/
int g_tcp_connect(int sck, char* address, char* port)
{
struct sockaddr_in s;
struct hostent* h;
g_memset(&s, 0, sizeof(struct sockaddr_in));
s.sin_family = AF_INET;
s.sin_port = htons(atoi(port));
s.sin_addr.s_addr = inet_addr(address);
if (s.sin_addr.s_addr == INADDR_NONE)
{
h = gethostbyname(address);
if (h != 0)
if (h->h_name != 0)
if (h->h_addr_list != 0)
if ((*(h->h_addr_list)) != 0)
s.sin_addr.s_addr = *((int*)(*(h->h_addr_list)));
}
return connect(sck, (struct sockaddr*)&s, sizeof(struct sockaddr_in));
}
/*****************************************************************************/
int g_tcp_set_non_blocking(int sck)
{
unsigned long i;
#ifdef _WIN32
i = 1;
ioctlsocket(sck, FIONBIO, &i);
#else
i = fcntl(sck, F_GETFL);
i = i | O_NONBLOCK;
fcntl(sck, F_SETFL, i);
#endif
return 0;
}
/*****************************************************************************/
int g_tcp_bind(int sck, char* port)
{
struct sockaddr_in s;
memset(&s, 0, sizeof(struct sockaddr_in));
s.sin_family = AF_INET;
s.sin_port = htons(atoi(port));
s.sin_addr.s_addr = INADDR_ANY;
return bind(sck, (struct sockaddr*)&s, sizeof(struct sockaddr_in));
}
/*****************************************************************************/
int g_tcp_local_bind(int sck, char* port)
{
struct sockaddr_un s;
memset(&s, 0, sizeof(struct sockaddr_un));
s.sun_family = AF_UNIX;
strcpy(s.sun_path, port);
return bind(sck, (struct sockaddr*)&s, sizeof(struct sockaddr_un));
}
/*****************************************************************************/
int g_tcp_listen(int sck)
{
return listen(sck, 2);
}
/*****************************************************************************/
int g_tcp_accept(int sck)
{
struct sockaddr_in s;
#ifdef _WIN32
signed int i;
#else
unsigned int i;
#endif
i = sizeof(struct sockaddr_in);
memset(&s, 0, i);
return accept(sck, (struct sockaddr*)&s, &i);
}
/*****************************************************************************/
void g_sleep(int msecs)
{
#ifdef _WIN32
Sleep(msecs);
#else
usleep(msecs * 1000);
#endif
}
/*****************************************************************************/
int g_tcp_last_error_would_block(int sck)
{
#ifdef _WIN32
return WSAGetLastError() == WSAEWOULDBLOCK;
#else
return errno == EWOULDBLOCK;
#endif
}
/*****************************************************************************/
int g_tcp_recv(int sck, void* ptr, int len, int flags)
{
return recv(sck, ptr, len, flags);
}
/*****************************************************************************/
int g_tcp_force_recv(int sck, char* data, int len)
{
int rcvd;
while (len > 0)
{
rcvd = g_tcp_recv(sck, data, len, 0);
if (rcvd == -1)
{
if (g_tcp_last_error_would_block(sck))
g_sleep(1);
else
return 1;
}
else if (rcvd == 0)
return 1;
else
{
data += rcvd;
len -= rcvd;
}
}
return 0;
}
/*****************************************************************************/
int g_tcp_send(int sck, void* ptr, int len, int flags)
{
return send(sck, ptr, len, flags);
}
/*****************************************************************************/
int g_tcp_force_send(int sck, char* data, int len)
{
int sent;
while (len > 0)
{
sent = g_tcp_send(sck, data, len, 0);
if (sent == -1)
{
if (g_tcp_last_error_would_block(sck))
g_sleep(1);
else
return 1;
}
else if (sent == 0)
return 1;
else
{
data += sent;
len -= sent;
}
}
return 0;
}
/*****************************************************************************/
int g_tcp_select(int sck1, int sck2)
{
fd_set rfds;
struct timeval time;
int max;
int rv;
time.tv_sec = 0;
time.tv_usec = 0;
FD_ZERO(&rfds);
FD_SET(((unsigned int)sck1), &rfds);
FD_SET(((unsigned int)sck2), &rfds);
max = sck1;
if (sck2 > max)
max = sck2;
rv = select(max + 1, &rfds, 0, 0, &time);
if (rv > 0)
{
rv = 0;
if (FD_ISSET(((unsigned int)sck1), &rfds))
rv = rv | 1;
if (FD_ISSET(((unsigned int)sck2), &rfds))
rv = rv | 2;
}
return rv;
}
/*****************************************************************************/
int g_is_term(void)
{
int rv;
#ifdef _WIN32
EnterCriticalSection(&g_term_mutex);
rv = g_term;
LeaveCriticalSection(&g_term_mutex);
#else
pthread_mutex_lock(&g_term_mutex);
rv = g_term;
pthread_mutex_unlock(&g_term_mutex);
#endif
return rv;
}
/*****************************************************************************/
void g_set_term(int in_val)
{
#ifdef _WIN32
EnterCriticalSection(&g_term_mutex);
g_term = in_val;
LeaveCriticalSection(&g_term_mutex);
#else
pthread_mutex_lock(&g_term_mutex);
g_term = in_val;
pthread_mutex_unlock(&g_term_mutex);
#endif
}
/*****************************************************************************/
#ifdef _WIN32
int g_thread_create(unsigned long (__stdcall * start_routine)(void*), void* arg)
{
DWORD thread;
return !CreateThread(0, 0, start_routine, arg, 0, &thread);
}
#else
int g_thread_create(void* (* start_routine)(void*), void* arg)
{
pthread_t thread;
return pthread_create(&thread, 0, start_routine, arg);
}
#endif
/* rc4 stuff */
/*****************************************************************************/
void* g_rc4_info_create(void)
{
return g_malloc(sizeof(RC4_KEY), 1);;
}
/*****************************************************************************/
void g_rc4_info_delete(void* rc4_info)
{
g_free(rc4_info);
}
/*****************************************************************************/
void g_rc4_set_key(void* rc4_info, char* key, int len)
{
RC4_set_key((RC4_KEY*)rc4_info, len, (unsigned char*)key);
}
/*****************************************************************************/
void g_rc4_crypt(void* rc4_info, char* data, int len)
{
RC4((RC4_KEY*)rc4_info, len, (unsigned char*)data, (unsigned char*)data);
}
/* sha1 stuff */
/*****************************************************************************/
void* g_sha1_info_create(void)
{
return g_malloc(sizeof(SHA_CTX), 1);
}
/*****************************************************************************/
void g_sha1_info_delete(void* sha1_info)
{
g_free(sha1_info);
}
/*****************************************************************************/
void g_sha1_clear(void* sha1_info)
{
SHA1_Init((SHA_CTX*)sha1_info);
}
/*****************************************************************************/
void g_sha1_transform(void* sha1_info, char* data, int len)
{
SHA1_Update((SHA_CTX*)sha1_info, data, len);
}
/*****************************************************************************/
void g_sha1_complete(void* sha1_info, char* data)
{
SHA1_Final((unsigned char*)data, (SHA_CTX*)sha1_info);
}
/* md5 stuff */
/*****************************************************************************/
void* g_md5_info_create(void)
{
return g_malloc(sizeof(MD5_CTX), 1);
}
/*****************************************************************************/
void g_md5_info_delete(void* md5_info)
{
g_free(md5_info);
}
/*****************************************************************************/
void g_md5_clear(void* md5_info)
{
MD5_Init((MD5_CTX*)md5_info);
}
/*****************************************************************************/
void g_md5_transform(void* md5_info, char* data, int len)
{
MD5_Update((MD5_CTX*)md5_info, data, len);
}
/*****************************************************************************/
void g_md5_complete(void* md5_info, char* data)
{
MD5_Final((unsigned char*)data, (MD5_CTX*)md5_info);
}
/*****************************************************************************/
int g_mod_exp(char* out, char* in, char* mod, char* exp)
{
BN_CTX* ctx;
BIGNUM lmod;
BIGNUM lexp;
BIGNUM lin;
BIGNUM lout;
int rv;
ctx = BN_CTX_new();
BN_init(&lmod);
BN_init(&lexp);
BN_init(&lin);
BN_init(&lout);
BN_bin2bn((unsigned char*)mod, 64, &lmod);
BN_bin2bn((unsigned char*)exp, 64, &lexp);
BN_bin2bn((unsigned char*)in, 64, &lin);
BN_mod_exp(&lout, &lin, &lexp, &lmod, ctx);
rv = BN_bn2bin(&lout, (unsigned char*)out);
BN_free(&lin);
BN_free(&lout);
BN_free(&lexp);
BN_free(&lmod);
BN_CTX_free(ctx);
return rv;
}
/*****************************************************************************/
void g_random(char* data, int len)
{
#ifdef _WIN32
memset(data, 0x44, len);
#else
int fd;
memset(data, 0x44, len);
fd = open("/dev/urandom", O_RDONLY);
if (fd == -1)
fd = open("/dev/random", O_RDONLY);
if (fd != -1)
{
read(fd, data, len);
close(fd);
}
#endif
}
/*****************************************************************************/
int g_abs(int i)
{
return abs(i);
}
/*****************************************************************************/
int g_memcmp(void* s1, void* s2, int len)
{
return memcmp(s1, s2, len);
}
/*****************************************************************************/
int g_file_open(char* file_name)
{
#ifdef _WIN32
return (int)CreateFile(file_name, GENERIC_READ | GENERIC_WRITE,
FILE_SHARE_READ | FILE_SHARE_WRITE,
0, OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, 0);
#else
return open(file_name, O_RDWR | O_CREAT);
#endif
}
/*****************************************************************************/
int g_file_close(int fd)
{
#ifdef _WIN32
CloseHandle((HANDLE)fd);
#else
close(fd);
#endif
return 0;
}
/*****************************************************************************/
/* read from file*/
int g_file_read(int fd, char* ptr, int len)
{
#ifdef _WIN32
if (ReadFile((HANDLE)fd, (LPVOID)ptr, (DWORD)len, (LPDWORD)&len, 0))
return len;
else
return -1;
#else
return read(fd, ptr, len);
#endif
}
/*****************************************************************************/
/* write to file */
int g_file_write(int fd, char* ptr, int len)
{
#ifdef _WIN32
if (WriteFile((HANDLE)fd, (LPVOID)ptr, (DWORD)len, (LPDWORD)&len, 0))
return len;
else
return -1;
#else
return write(fd, ptr, len);
#endif
}
/*****************************************************************************/
/* move file pointer */
int g_file_seek(int fd, int offset)
{
#ifdef _WIN32
return SetFilePointer((HANDLE)fd, offset, 0, FILE_BEGIN);
#else
return lseek(fd, offset, SEEK_SET);
#endif
}
/*****************************************************************************/
/* do a write lock on a file */
/* return boolean */
int g_file_lock(int fd, int start, int len)
{
#ifdef _WIN32
return LockFile((HANDLE)fd, start, 0, len, 0);
#else
struct flock lock;
lock.l_type = F_WRLCK;
lock.l_whence = SEEK_SET;
lock.l_start = start;
lock.l_len = len;
if (fcntl(fd, F_SETLK, &lock) == -1)
return 0;
return 1;
#endif
}
/*****************************************************************************/
int g_strlen(char* text)
{
return strlen(text);
}
/*****************************************************************************/
char* g_strcpy(char* dest, char* src)
{
return strcpy(dest, src);
}
/*****************************************************************************/
char* g_strncpy(char* dest, char* src, int len)
{
char* rv;
rv = strncpy(dest, src, len);
dest[len] = 0;
return rv;
}
/*****************************************************************************/
char* g_strcat(char* dest, char* src)
{
return strcat(dest, src);
}
/*****************************************************************************/
char* g_strdup(char* in)
{
int len;
char* p;
if (in == 0)
return 0;
len = g_strlen(in);
p = (char*)g_malloc(len + 1, 0);
g_strcpy(p, in);
return p;
}
/*****************************************************************************/
int g_strcmp(char* c1, char* c2)
{
return strcmp(c1, c2);
}
/*****************************************************************************/
int g_load_library(char* in)
{
return (int)dlopen(in, RTLD_LOCAL | RTLD_LAZY);
}
/*****************************************************************************/
int g_free_library(int lib)
{
if (lib == 0)
return 0;
return dlclose((void*)lib);
}
/*****************************************************************************/
/* returns NULL if not found */
void* g_get_proc_address(int lib, char* name)
{
if (lib == 0)
return 0;
return dlsym((void*)lib, name);
}
/*****************************************************************************/
int g_system(char* aexec)
{
return system(aexec);
}

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/*
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
xrdp: A Remote Desktop Protocol server.
Copyright (C) Jay Sorg 2004
generic operating system calls
*/
int g_init_system(void);
int g_exit_system(void);
void g_printf(char *format, ...);
void g_sprintf(char* dest, ...);
void g_hexdump(char* p, int len);
void* g_malloc(int size, int zero);
void* g_malloc1(int size, int zero);
void g_free(void* ptr);
void g_free1(void* ptr);
void g_memset(void* ptr, int val, int size);
void g_memcpy(void* d_ptr, const void* s_ptr, int size);
int g_getchar(void);
int g_tcp_socket(void);
int g_tcp_local_socket(void);
void g_tcp_close(int sck);
int g_tcp_connect(int sck, char* address, char* port);
int g_tcp_force_send(int sck, char* data, int len);
int g_tcp_force_recv(int sck, char* data, int len);
int g_tcp_set_non_blocking(int sck);
int g_tcp_bind(int sck, char* port);
int g_tcp_local_bind(int sck, char* port);
int g_tcp_listen(int sck);
int g_tcp_accept(int sck);
int g_tcp_recv(int sck, void* ptr, int len, int flags);
int g_tcp_send(int sck, void* ptr, int len, int flags);
int g_tcp_last_error_would_block(int sck);
int g_tcp_select(int sck1, int sck2);
int g_is_term(void);
void g_set_term(int in_val);
void g_sleep(int msecs);
int g_thread_create(THREAD_RV (THREAD_CC * start_routine)(void*), void* arg);
void* g_rc4_info_create(void);
void g_rc4_info_delete(void* rc4_info);
void g_rc4_set_key(void* rc4_info, char* key, int len);
void g_rc4_crypt(void* rc4_info, char* data, int len);
void* g_sha1_info_create(void);
void g_sha1_info_delete(void* sha1_info);
void g_sha1_clear(void* sha1_info);
void g_sha1_transform(void* sha1_info, char* data, int len);
void g_sha1_complete(void* sha1_info, char* data);
void* g_md5_info_create(void);
void g_md5_info_delete(void* md5_info);
void g_md5_clear(void* md5_info);
void g_md5_transform(void* md5_info, char* data, int len);
void g_md5_complete(void* md5_info, char* data);
int g_mod_exp(char* out, char* in, char* mod, char* exp);
void g_random(char* data, int len);
int g_abs(int i);
int g_memcmp(void* s1, void* s2, int len);
int g_file_open(char* file_name);
int g_file_close(int fd);
int g_file_read(int fd, char* ptr, int len);
int g_file_write(int fd, char* ptr, int len);
int g_file_seek(int fd, int offset);
int g_file_lock(int fd, int start, int len);
int g_strlen(char* text);
char* g_strcpy(char* dest, char* src);
char* g_strncpy(char* dest, char* src, int len);
char* g_strcat(char* dest, char* src);
char* g_strdup(char* in);
int g_strcmp(char* c1, char* c2);
int g_load_library(char* in);
int g_free_library(int lib);
void* g_get_proc_address(int lib, char* name);
int g_system(char* aexec);

299
common/parse.h Normal file
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@ -0,0 +1,299 @@
/*
rdesktop: A Remote Desktop Protocol client.
Parsing primitives
Copyright (C) Matthew Chapman 1999-2002
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/* modified for xrdp */
/* this is a super fast stream method, you bet */
#if defined L_ENDIAN
#elif defined B_ENDIAN
#else
#error Unknown endianness.
#endif
/* parser state */
struct stream
{
char* p;
char* end;
char* data;
int size;
/* offsets of various headers */
char* iso_hdr;
char* mcs_hdr;
char* sec_hdr;
char* rdp_hdr;
char* channel_hdr;
char* next_packet;
};
/******************************************************************************/
#define s_check(s) (s->p <= s->end)
/******************************************************************************/
#define s_check_rem(s, n) (s->p + n <= s->end)
/******************************************************************************/
#define s_check_end(s) (s->p == s->end)
/******************************************************************************/
#define make_stream(s) \
{ \
s = (struct stream*)g_malloc(sizeof(struct stream), 1); \
}
/******************************************************************************/
#define init_stream(s, v) \
{ \
if (v > s->size) \
{ \
g_free(s->data); \
s->data = (char*)g_malloc(v, 0); \
s->size = v; \
} \
s->p = s->data; \
s->end = s->data; \
s->next_packet = 0; \
}
/******************************************************************************/
#define free_stream(s) \
{ \
if (s != 0) \
g_free(s->data); \
g_free(s); \
} \
/******************************************************************************/
#define s_push_layer(s, h, n) \
{ \
s->h = s->p; \
s->p += n; \
}
/******************************************************************************/
#define s_pop_layer(s, h) \
{ \
s->p = s->h; \
}
/******************************************************************************/
#define s_mark_end(s) \
{ \
s->end = s->p; \
}
/******************************************************************************/
#define in_uint8(s, v) \
{ \
v = *((unsigned char*)(s->p)); \
s->p++; \
}
/******************************************************************************/
#if defined B_ENDIAN || defined NEED_ALIGN
#define in_sint16_le(s, v) \
{ \
v = (signed short) \
( \
(*((unsigned char*)(s->p + 0)) << 0) | \
(*((unsigned char*)(s->p + 1)) << 8) \
); \
s->p += 2; \
}
#else
#define in_sint16_le(s, v) \
{ \
v = *((signed short*)(s->p)); \
s->p += 2; \
}
#endif
/******************************************************************************/
#if defined B_ENDIAN || defined NEED_ALIGN
#define in_uint16_le(s, v) \
{ \
v = (unsigned short) \
( \
(*((unsigned char*)(s->p + 0)) << 0) | \
(*((unsigned char*)(s->p + 1)) << 8) \
); \
s->p += 2; \
}
#else
#define in_uint16_le(s, v) \
{ \
v = *((unsigned short*)(s->p)); \
s->p += 2; \
}
#endif
/******************************************************************************/
#define in_uint16_be(s, v) \
{ \
v = *((unsigned char*)(s->p)); \
s->p++; \
v = v << 8; \
v = v | *((unsigned char*)(s->p)); \
s->p++; \
}
/******************************************************************************/
#if defined B_ENDIAN || defined NEED_ALIGN
#define in_uint32_le(s, v) \
{ \
v = (unsigned long) \
( \
(*((unsigned char*)(s->p + 0)) << 0) | \
(*((unsigned char*)(s->p + 1)) << 8) | \
(*((unsigned char*)(s->p + 2)) << 16) | \
(*((unsigned char*)(s->p + 3)) << 24) \
); \
s->p += 4; \
}
#else
#define in_uint32_le(s, v) \
{ \
v = *((unsigned long*)(s->p)); \
s->p += 4; \
}
#endif
/******************************************************************************/
#define in_uint32_be(s, v) \
{ \
v = *((unsigned char*)(s->p)); \
s->p++; \
v = v << 8; \
v = v | *((unsigned char*)(s->p)); \
s->p++; \
v = v << 8; \
v = v | *((unsigned char*)(s->p)); \
s->p++; \
v = v << 8; \
v = v | *((unsigned char*)(s->p)); \
s->p++; \
}
/******************************************************************************/
#define out_uint8(s, v) \
{ \
*(s->p) = (unsigned char)(v); \
s->p++; \
}
/******************************************************************************/
#if defined B_ENDIAN || defined NEED_ALIGN
#define out_uint16_le(s, v) \
{ \
*(s->p) = (unsigned char)(v); \
s->p++; \
*(s->p) = (unsigned char)((v) >> 8); \
s->p++; \
}
#else
#define out_uint16_le(s, v) \
{ \
*((unsigned short*)(s->p)) = (unsigned short)(v); \
s->p += 2; \
}
#endif
/******************************************************************************/
#define out_uint16_be(s, v) \
{ \
*(s->p) = (unsigned char)((v) >> 8); \
s->p++; \
*(s->p) = (unsigned char)(v); \
s->p++; \
}
/******************************************************************************/
#if defined B_ENDIAN || defined NEED_ALIGN
#define out_uint32_le(s, v) \
{ \
*(s->p) = (unsigned char)(v); \
s->p++; \
*(s->p) = (unsigned char)((v) >> 8); \
s->p++; \
*(s->p) = (unsigned char)((v) >> 16); \
s->p++; \
*(s->p) = (unsigned char)((v) >> 24); \
s->p++; \
}
#else
#define out_uint32_le(s, v) \
{ \
*((unsigned long*)(s->p)) = (v); \
s->p += 4; \
}
#endif
/******************************************************************************/
#define out_uint32_be(s, v) \
{ \
*(s->p) = (unsigned char)((v) >> 24); \
s->p++; \
*(s->p) = (unsigned char)((v) >> 16); \
s->p++; \
*(s->p) = (unsigned char)((v) >> 8); \
s->p++; \
*(s->p) = (unsigned char)(v); \
s->p++; \
}
/******************************************************************************/
#define in_uint8p(s, v, n) \
{ \
v = s->p; \
s->p += n; \
}
/******************************************************************************/
#define in_uint8a(s, v, n) \
{ \
g_memcpy(v, s->p, n); \
s->p += n; \
}
/******************************************************************************/
#define in_uint8s(s, n) \
{ \
s->p += n; \
}
/******************************************************************************/
#define out_uint8p(s, v, n) \
{ \
g_memcpy(s->p, v, n); \
s->p += n; \
}
/******************************************************************************/
#define out_uint8a(s, v, n) \
{ \
out_uint8p(s, v, n); \
}
/******************************************************************************/
#define out_uint8s(s, n) \
{ \
g_memset(s->p, 0, n); \
s->p += n; \
}