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Kart-Public/src/d_netfil.c

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// SONIC ROBO BLAST 2
//-----------------------------------------------------------------------------
// Copyright (C) 1998-2000 by DooM Legacy Team.
// Copyright (C) 1999-2018 by Sonic Team Junior.
//
// This program is free software distributed under the
// terms of the GNU General Public License, version 2.
// See the 'LICENSE' file for more details.
//-----------------------------------------------------------------------------
/// \file d_netfil.c
/// \brief Transfer a file using HSendPacket.
#include <stdio.h>
#ifndef _WIN32_WCE
#ifdef __OS2__
#include <sys/types.h>
#endif // __OS2__
#include <sys/stat.h>
#endif
#if !defined (UNDER_CE)
#include <time.h>
#endif
#if ((defined (_WIN32) && !defined (_WIN32_WCE)) || defined (__DJGPP__)) && !defined (_XBOX)
#include <io.h>
#include <direct.h>
#elif !defined (_WIN32_WCE) && !(defined (_XBOX) && !defined (__GNUC__))
#include <sys/types.h>
#include <dirent.h>
#include <utime.h>
#endif
#ifdef __GNUC__
#include <unistd.h>
#include <limits.h>
#elif defined (_WIN32) && !defined (_WIN32_WCE)
#include <sys/utime.h>
#endif
#ifdef __DJGPP__
#include <dir.h>
#include <utime.h>
#endif
#include "doomdef.h"
#include "doomstat.h"
#include "d_main.h"
#include "g_game.h"
#include "i_net.h"
#include "i_system.h"
#include "m_argv.h"
#include "d_net.h"
#include "w_wad.h"
#include "d_netfil.h"
#include "z_zone.h"
#include "byteptr.h"
#include "p_setup.h"
#include "m_misc.h"
#include "m_menu.h"
#include "md5.h"
#include "filesrch.h"
#include <errno.h>
// Prototypes
static boolean SV_SendFile(INT32 node, const char *filename, UINT8 fileid);
// Sender structure
typedef struct filetx_s
{
INT32 ram;
union {
char *filename; // Name of the file
char *ram; // Pointer to the data in RAM
} id;
UINT32 size; // Size of the file
UINT8 fileid;
INT32 node; // Destination
struct filetx_s *next; // Next file in the list
} filetx_t;
// Current transfers (one for each node)
typedef struct filetran_s
{
filetx_t *txlist; // Linked list of all files for the node
UINT32 position; // The current position in the file
FILE *currentfile; // The file currently being sent/received
} filetran_t;
static filetran_t transfer[MAXNETNODES];
// Read time of file: stat _stmtime
// Write time of file: utime
// Receiver structure
INT32 fileneedednum; // Number of files needed to join the server
fileneeded_t fileneeded[MAX_WADFILES]; // List of needed files
char downloaddir[512] = "DOWNLOAD";
#ifdef CLIENT_LOADINGSCREEN
// for cl loading screen
INT32 lastfilenum = -1;
#endif
/** Fills a serverinfo packet with information about wad files loaded.
*
* \todo Give this function a better name since it is in global scope.
*
*/
UINT8 *PutFileNeeded(void)
{
size_t i, count = 0;
UINT8 *p = netbuffer->u.serverinfo.fileneeded;
char wadfilename[MAX_WADPATH] = "";
UINT8 filestatus;
size_t bytesused = 0;
for (i = 0; i < numwadfiles; i++)
{
// If it has only music/sound lumps, mark it as unimportant
if (W_VerifyNMUSlumps(wadfiles[i]->filename))
filestatus = 0;
else
filestatus = 1; // Important
// Store in the upper four bits
if (!cv_downloading.value)
filestatus += (2 << 4); // Won't send
else if ((wadfiles[i]->filesize > (UINT32)cv_maxsend.value * 1024))
filestatus += (0 << 4); // Won't send
else
filestatus += (1 << 4); // Will send if requested
bytesused += (nameonlylength(wadfilename) + 22);
// Don't write too far...
if (bytesused > sizeof(netbuffer->u.serverinfo.fileneeded))
I_Error("Too many wad files added to host a game. (%s, stopped on %s)\n", sizeu1(bytesused), wadfilename);
WRITEUINT8(p, filestatus);
count++;
WRITEUINT32(p, wadfiles[i]->filesize);
nameonly(strcpy(wadfilename, wadfiles[i]->filename));
WRITESTRINGN(p, wadfilename, MAX_WADPATH);
WRITEMEM(p, wadfiles[i]->md5sum, 16);
}
netbuffer->u.serverinfo.fileneedednum = (UINT8)count;
return p;
}
/** Parses the serverinfo packet and fills the fileneeded table on client
*
* \param fileneedednum_parm The number of files needed to join the server
* \param fileneededstr The memory block containing the list of needed files
*
*/
void D_ParseFileneeded(INT32 fileneedednum_parm, UINT8 *fileneededstr)
{
INT32 i;
UINT8 *p;
UINT8 filestatus;
fileneedednum = fileneedednum_parm;
p = (UINT8 *)fileneededstr;
for (i = 0; i < fileneedednum; i++)
{
fileneeded[i].status = FS_NOTFOUND; // We haven't even started looking for the file yet
filestatus = READUINT8(p); // The first byte is the file status
fileneeded[i].important = (UINT8)(filestatus & 3);
fileneeded[i].willsend = (UINT8)(filestatus >> 4);
fileneeded[i].totalsize = READUINT32(p); // The four next bytes are the file size
fileneeded[i].file = NULL; // The file isn't open yet
READSTRINGN(p, fileneeded[i].filename, MAX_WADPATH); // The next bytes are the file name
READMEM(p, fileneeded[i].md5sum, 16); // The last 16 bytes are the file checksum
}
}
void CL_PrepareDownloadSaveGame(const char *tmpsave)
{
fileneedednum = 1;
fileneeded[0].status = FS_REQUESTED;
fileneeded[0].totalsize = UINT32_MAX;
fileneeded[0].file = NULL;
memset(fileneeded[0].md5sum, 0, 16);
strcpy(fileneeded[0].filename, tmpsave);
}
/** Checks the server to see if we CAN download all the files,
* before starting to create them and requesting.
*
* \return True if we can download all the files
*
*/
boolean CL_CheckDownloadable(void)
{
UINT8 i,dlstatus = 0;
for (i = 0; i < fileneedednum; i++)
if (fileneeded[i].status != FS_FOUND && fileneeded[i].status != FS_OPEN && fileneeded[i].important)
{
if (fileneeded[i].willsend == 1)
continue;
if (fileneeded[i].willsend == 0)
dlstatus = 1;
else //if (fileneeded[i].willsend == 2)
dlstatus = 2;
}
// Downloading locally disabled
if (!dlstatus && M_CheckParm("-nodownload"))
dlstatus = 3;
if (!dlstatus)
return true;
// not downloadable, put reason in console
CONS_Alert(CONS_NOTICE, M_GetText("You need additional files to connect to this server:\n"));
for (i = 0; i < fileneedednum; i++)
if (fileneeded[i].status != FS_FOUND && fileneeded[i].status != FS_OPEN && fileneeded[i].important)
{
CONS_Printf(" * \"%s\" (%dK)", fileneeded[i].filename, fileneeded[i].totalsize >> 10);
if (fileneeded[i].status == FS_NOTFOUND)
CONS_Printf(M_GetText(" not found, md5: "));
else if (fileneeded[i].status == FS_MD5SUMBAD)
CONS_Printf(M_GetText(" wrong version, md5: "));
{
INT32 j;
char md5tmp[33];
for (j = 0; j < 16; j++)
sprintf(&md5tmp[j*2], "%02x", fileneeded[i].md5sum[j]);
CONS_Printf("%s", md5tmp);
}
CONS_Printf("\n");
}
switch (dlstatus)
{
case 1:
CONS_Printf(M_GetText("Some files are larger than the server is willing to send.\n"));
break;
case 2:
CONS_Printf(M_GetText("The server is not allowing download requests.\n"));
break;
case 3:
CONS_Printf(M_GetText("All files downloadable, but you have chosen to disable downloading locally.\n"));
break;
}
return false;
}
/** Sends requests for files in the ::fileneeded table with a status of
* ::FS_NOTFOUND.
*
* \return True if the packet was successfully sent
* \note Sends a PT_REQUESTFILE packet
*
*/
boolean CL_SendRequestFile(void)
{
char *p;
INT32 i;
INT64 totalfreespaceneeded = 0, availablefreespace;
#ifdef PARANOIA
if (M_CheckParm("-nodownload"))
I_Error("Attempted to download files in -nodownload mode");
for (i = 0; i < fileneedednum; i++)
if (fileneeded[i].status != FS_FOUND && fileneeded[i].status != FS_OPEN
&& fileneeded[i].important && (fileneeded[i].willsend == 0 || fileneeded[i].willsend == 2))
{
I_Error("Attempted to download files that were not sendable");
}
#endif
netbuffer->packettype = PT_REQUESTFILE;
p = (char *)netbuffer->u.textcmd;
for (i = 0; i < fileneedednum; i++)
if ((fileneeded[i].status == FS_NOTFOUND || fileneeded[i].status == FS_MD5SUMBAD)
&& fileneeded[i].important)
{
totalfreespaceneeded += fileneeded[i].totalsize;
nameonly(fileneeded[i].filename);
WRITEUINT8(p, i); // fileid
WRITESTRINGN(p, fileneeded[i].filename, MAX_WADPATH);
// put it in download dir
strcatbf(fileneeded[i].filename, downloaddir, "/");
fileneeded[i].status = FS_REQUESTED;
}
WRITEUINT8(p, 0xFF);
I_GetDiskFreeSpace(&availablefreespace);
if (totalfreespaceneeded > availablefreespace)
I_Error("To play on this server you must download %s KB,\n"
"but you have only %s KB free space on this drive\n",
sizeu1((size_t)(totalfreespaceneeded>>10)), sizeu2((size_t)(availablefreespace>>10)));
// prepare to download
I_mkdir(downloaddir, 0755);
return HSendPacket(servernode, true, 0, p - (char *)netbuffer->u.textcmd);
}
// get request filepak and put it on the send queue
// returns false if a requested file was not found or cannot be sent
boolean Got_RequestFilePak(INT32 node)
{
char wad[MAX_WADPATH+1];
UINT8 *p = netbuffer->u.textcmd;
UINT8 id;
while (p < netbuffer->u.textcmd + MAXTEXTCMD-1) // Don't allow hacked client to overflow
{
id = READUINT8(p);
if (id == 0xFF)
break;
READSTRINGN(p, wad, MAX_WADPATH);
if (!SV_SendFile(node, wad, id))
{
SV_AbortSendFiles(node);
return false; // don't read the rest of the files
}
}
return true; // no problems with any files
}
/** Checks if the files needed aren't already loaded or on the disk
*
* \return 0 if some files are missing
* 1 if all files exist
* 2 if some already loaded files are not requested or are in a different order
*
*/
INT32 CL_CheckFiles(void)
{
INT32 i, j;
char wadfilename[MAX_WADPATH];
INT32 ret = 1;
size_t packetsize = 0;
size_t filestoget = 0;
serverinfo_pak *dummycheck = NULL;
// Shut the compiler up.
(void)dummycheck;
// if (M_CheckParm("-nofiles"))
// return 1;
// the first is the iwad (the main wad file)
// we don't care if it's called srb2.srb or srb2.wad.
// Never download the IWAD, just assume it's there and identical
fileneeded[0].status = FS_OPEN;
// Modified game handling -- check for an identical file list
// must be identical in files loaded AND in order
// Return 2 on failure -- disconnect from server
if (modifiedgame)
{
CONS_Debug(DBG_NETPLAY, "game is modified; only doing basic checks\n");
for (i = 1, j = 1; i < fileneedednum || j < numwadfiles;)
{
if (i < fileneedednum && !fileneeded[i].important)
{
// Eh whatever, don't care
++i;
continue;
}
if (j < numwadfiles && W_VerifyNMUSlumps(wadfiles[j]->filename))
{
// Unimportant on our side. still don't care.
++j;
continue;
}
// If this test is true, we've reached the end of one file list
// and the other still has a file that's important
if (i >= fileneedednum || j >= numwadfiles)
return 2;
// For the sake of speed, only bother with a md5 check
if (memcmp(wadfiles[j]->md5sum, fileneeded[i].md5sum, 16))
return 2;
// It's accounted for! let's keep going.
CONS_Debug(DBG_NETPLAY, "'%s' accounted for\n", fileneeded[i].filename);
fileneeded[i].status = FS_OPEN;
++i;
++j;
}
return 1;
}
// See W_LoadWadFile in w_wad.c
for (i = 0; i < numwadfiles; i++)
packetsize += nameonlylength(wadfiles[i]->filename) + 22;
for (i = 1; i < fileneedednum; i++)
{
CONS_Debug(DBG_NETPLAY, "searching for '%s' ", fileneeded[i].filename);
// Check in already loaded files
for (j = 1; wadfiles[j]; j++)
{
nameonly(strcpy(wadfilename, wadfiles[j]->filename));
if (!stricmp(wadfilename, fileneeded[i].filename) &&
!memcmp(wadfiles[j]->md5sum, fileneeded[i].md5sum, 16))
{
CONS_Debug(DBG_NETPLAY, "already loaded\n");
fileneeded[i].status = FS_OPEN;
break;
}
}
if (fileneeded[i].status != FS_NOTFOUND || !fileneeded[i].important)
continue;
packetsize += nameonlylength(fileneeded[i].filename) + 22;
if ((numwadfiles+filestoget >= MAX_WADFILES)
|| (packetsize > sizeof(dummycheck->fileneeded)))
return 3;
filestoget++;
fileneeded[i].status = findfile(fileneeded[i].filename, fileneeded[i].md5sum, true);
CONS_Debug(DBG_NETPLAY, "found %d\n", fileneeded[i].status);
if (fileneeded[i].status != FS_FOUND)
ret = 0;
}
return ret;
}
// Load it now
void CL_LoadServerFiles(void)
{
INT32 i;
// if (M_CheckParm("-nofiles"))
// return;
for (i = 1; i < fileneedednum; i++)
{
if (fileneeded[i].status == FS_OPEN)
continue; // Already loaded
else if (fileneeded[i].status == FS_FOUND)
{
P_AddWadFile(fileneeded[i].filename, NULL);
G_SetGameModified(true);
fileneeded[i].status = FS_OPEN;
}
else if (fileneeded[i].status == FS_MD5SUMBAD)
{
// If the file is marked important, don't even bother proceeding.
if (fileneeded[i].important)
I_Error("Wrong version of important file %s", fileneeded[i].filename);
// If it isn't, no need to worry the user with a console message,
// although it can't hurt to put something in the debug file.
// ...but wait a second. What if the local version is "important"?
if (!W_VerifyNMUSlumps(fileneeded[i].filename))
I_Error("File %s should only contain music and sound effects!",
fileneeded[i].filename);
// Okay, NOW we know it's safe. Whew.
P_AddWadFile(fileneeded[i].filename, NULL);
if (fileneeded[i].important)
G_SetGameModified(true);
fileneeded[i].status = FS_OPEN;
DEBFILE(va("File %s found but with different md5sum\n", fileneeded[i].filename));
}
else if (fileneeded[i].important)
{
const char *s;
switch(fileneeded[i].status)
{
case FS_NOTFOUND:
s = "FS_NOTFOUND";
break;
case FS_REQUESTED:
s = "FS_REQUESTED";
break;
case FS_DOWNLOADING:
s = "FS_DOWNLOADING";
break;
default:
s = "unknown";
break;
}
I_Error("Try to load file \"%s\" with status of %d (%s)\n", fileneeded[i].filename,
fileneeded[i].status, s);
}
}
}
// Number of files to send
// Little optimization to quickly test if there is a file in the queue
static INT32 filestosend = 0;
/** Adds a file to the file list for a node
*
* \param node The node to send the file to
* \param filename The file to send
* \param fileid ???
* \sa SV_SendRam
*
*/
static boolean SV_SendFile(INT32 node, const char *filename, UINT8 fileid)
{
filetx_t **q; // A pointer to the "next" field of the last file in the list
filetx_t *p; // The new file request
INT32 i;
char wadfilename[MAX_WADPATH];
if (cv_noticedownload.value)
CONS_Printf("Sending file \"%s\" to node %d (%s)\n", filename, node, I_GetNodeAddress(node));
// Find the last file in the list and set a pointer to its "next" field
q = &transfer[node].txlist;
while (*q)
q = &((*q)->next);
// Allocate a file request and append it to the file list
p = *q = (filetx_t *)malloc(sizeof (filetx_t));
if (!p)
I_Error("SV_SendFile: No more memory\n");
// Initialise with zeros
memset(p, 0, sizeof (filetx_t));
// Allocate the file name
p->id.filename = (char *)malloc(MAX_WADPATH);
if (!p->id.filename)
I_Error("SV_SendFile: No more memory\n");
// Set the file name and get rid of the path
strlcpy(p->id.filename, filename, MAX_WADPATH);
nameonly(p->id.filename);
// Look for the requested file through all loaded files
for (i = 0; wadfiles[i]; i++)
{
strlcpy(wadfilename, wadfiles[i]->filename, MAX_WADPATH);
nameonly(wadfilename);
if (!stricmp(wadfilename, p->id.filename))
{
// Copy file name with full path
strlcpy(p->id.filename, wadfiles[i]->filename, MAX_WADPATH);
break;
}
}
// Handle non-loaded file requests
if (!wadfiles[i])
{
DEBFILE(va("%s not found in wadfiles\n", filename));
// This formerly checked if (!findfile(p->id.filename, NULL, true))
// Not found
// Don't inform client (probably someone who thought they could leak 2.2 ACZ)
DEBFILE(va("Client %d request %s: not found\n", node, filename));
free(p->id.filename);
free(p);
*q = NULL;
return false; // cancel the rest of the requests
}
// Handle huge file requests (i.e. bigger than cv_maxsend.value KB)
if (wadfiles[i]->filesize > (UINT32)cv_maxsend.value * 1024)
{
// Too big
// Don't inform client (client sucks, man)
DEBFILE(va("Client %d request %s: file too big, not sending\n", node, filename));
free(p->id.filename);
free(p);
*q = NULL;
return false; // cancel the rest of the requests
}
DEBFILE(va("Sending file %s (id=%d) to %d\n", filename, fileid, node));
p->ram = SF_FILE; // It's a file, we need to close it and free its name once we're done sending it
p->fileid = fileid;
p->next = NULL; // End of list
filestosend++;
return true;
}
/** Adds a memory block to the file list for a node
*
* \param node The node to send the memory block to
* \param data The memory block to send
* \param size The size of the block in bytes
* \param freemethod How to free the block after it has been sent
* \param fileid ???
* \sa SV_SendFile
*
*/
void SV_SendRam(INT32 node, void *data, size_t size, freemethod_t freemethod, UINT8 fileid)
{
filetx_t **q; // A pointer to the "next" field of the last file in the list
filetx_t *p; // The new file request
// Find the last file in the list and set a pointer to its "next" field
q = &transfer[node].txlist;
while (*q)
q = &((*q)->next);
// Allocate a file request and append it to the file list
p = *q = (filetx_t *)malloc(sizeof (filetx_t));
if (!p)
I_Error("SV_SendRam: No more memory\n");
// Initialise with zeros
memset(p, 0, sizeof (filetx_t));
p->ram = freemethod; // Remember how to free the memory block for when we're done sending it
p->id.ram = data;
p->size = (UINT32)size;
p->fileid = fileid;
p->next = NULL; // End of list
DEBFILE(va("Sending ram %p(size:%u) to %d (id=%u)\n",p->id.ram,p->size,node,fileid));
filestosend++;
}
/** Stops sending a file for a node, and removes the file request from the list,
* either because the file has been fully sent or because the node was disconnected
*
* \param node The destination
*
*/
static void SV_EndFileSend(INT32 node)
{
filetx_t *p = transfer[node].txlist;
// Free the file request according to the freemethod parameter used with SV_SendFile/Ram
switch (p->ram)
{
case SF_FILE: // It's a file, close it and free its filename
if (cv_noticedownload.value)
CONS_Printf("Ending file transfer for node %d\n", node);
if (transfer[node].currentfile)
fclose(transfer[node].currentfile);
free(p->id.filename);
break;
case SF_Z_RAM: // It's a memory block allocated with Z_Alloc or the likes, use Z_Free
Z_Free(p->id.ram);
break;
case SF_RAM: // It's a memory block allocated with malloc, use free
free(p->id.ram);
case SF_NOFREERAM: // Nothing to free
break;
}
// Remove the file request from the list
transfer[node].txlist = p->next;
free(p);
// Indicate that the transmission is over
transfer[node].currentfile = NULL;
filestosend--;
}
#define PACKETPERTIC net_bandwidth/(TICRATE*software_MAXPACKETLENGTH)
/** Handles file transmission
*
* \todo Use an acknowledging method more adapted to file transmission
* The current download speed suffers from lack of ack packets,
* especially when the one downloading has high latency
*
*/
void SV_FileSendTicker(void)
{
static INT32 currentnode = 0;
filetx_pak *p;
size_t size;
filetx_t *f;
INT32 packetsent, ram, i, j;
INT32 maxpacketsent;
if (!filestosend) // No file to send
return;
if (cv_downloadspeed.value) // New (and experimental) behavior
{
packetsent = cv_downloadspeed.value;
// Don't send more packets than we have free acks
#ifndef NONET
maxpacketsent = Net_GetFreeAcks(false) - 5; // Let 5 extra acks just in case
#else
maxpacketsent = 1;
#endif
if (packetsent > maxpacketsent && maxpacketsent > 0) // Send at least one packet
packetsent = maxpacketsent;
}
else // Old behavior
{
packetsent = PACKETPERTIC;
if (!packetsent)
packetsent = 1;
}
netbuffer->packettype = PT_FILEFRAGMENT;
// (((sendbytes-nowsentbyte)*TICRATE)/(I_GetTime()-starttime)<(UINT32)net_bandwidth)
while (packetsent-- && filestosend != 0)
{
for (i = currentnode, j = 0; j < MAXNETNODES;
i = (i+1) % MAXNETNODES, j++)
{
if (transfer[i].txlist)
goto found;
}
// no transfer to do
I_Error("filestosend=%d but no file to send found\n", filestosend);
found:
currentnode = (i+1) % MAXNETNODES;
f = transfer[i].txlist;
ram = f->ram;
// Open the file if it isn't open yet, or
if (!transfer[i].currentfile)
{
if (!ram) // Sending a file
{
long filesize;
transfer[i].currentfile =
fopen(f->id.filename, "rb");
if (!transfer[i].currentfile)
I_Error("File %s does not exist",
f->id.filename);
fseek(transfer[i].currentfile, 0, SEEK_END);
filesize = ftell(transfer[i].currentfile);
// Nobody wants to transfer a file bigger
// than 4GB!
if (filesize >= LONG_MAX)
I_Error("filesize of %s is too large", f->id.filename);
if (filesize == -1)
I_Error("Error getting filesize of %s", f->id.filename);
f->size = (UINT32)filesize;
fseek(transfer[i].currentfile, 0, SEEK_SET);
}
else // Sending RAM
transfer[i].currentfile = (FILE *)1; // Set currentfile to a non-null value to indicate that it is open
transfer[i].position = 0;
}
// Build a packet containing a file fragment
p = &netbuffer->u.filetxpak;
size = software_MAXPACKETLENGTH - (FILETXHEADER + BASEPACKETSIZE);
if (f->size-transfer[i].position < size)
size = f->size-transfer[i].position;
if (ram)
M_Memcpy(p->data, &f->id.ram[transfer[i].position], size);
else if (fread(p->data, 1, size, transfer[i].currentfile) != size)
I_Error("SV_FileSendTicker: can't read %s byte on %s at %d because %s", sizeu1(size), f->id.filename, transfer[i].position, strerror(ferror(transfer[i].currentfile)));
p->position = LONG(transfer[i].position);
// Put flag so receiver knows the total size
if (transfer[i].position + size == f->size)
p->position |= LONG(0x80000000);
p->fileid = f->fileid;
p->size = SHORT((UINT16)size);
// Send the packet
if (HSendPacket(i, true, 0, FILETXHEADER + size)) // Reliable SEND
{ // Success
transfer[i].position = (UINT32)(transfer[i].position + size);
if (transfer[i].position == f->size) // Finish?
SV_EndFileSend(i);
}
else
{ // Not sent for some odd reason, retry at next call
if (!ram)
fseek(transfer[i].currentfile,transfer[i].position, SEEK_SET);
// Exit the while (can't send this one so why should i send the next?)
break;
}
}
}
void Got_Filetxpak(void)
{
INT32 filenum = netbuffer->u.filetxpak.fileid;
fileneeded_t *file = &fileneeded[filenum];
char *filename = file->filename;
static INT32 filetime = 0;
if (!(strcmp(filename, "srb2.srb")
&& strcmp(filename, "srb2.wad")
&& strcmp(filename, "zones.dta")
&& strcmp(filename, "player.dta")
&& strcmp(filename, "rings.dta")
&& strcmp(filename, "patch.dta")
&& strcmp(filename, "music.dta")
))
I_Error("Tried to download \"%s\"", filename);
if (filenum >= fileneedednum)
{
DEBFILE(va("fileframent not needed %d>%d\n", filenum, fileneedednum));
//I_Error("Received an unneeded file fragment (file id received: %d, file id needed: %d)\n", filenum, fileneedednum);
return;
}
if (file->status == FS_REQUESTED)
{
if (file->file)
I_Error("Got_Filetxpak: already open file\n");
file->file = fopen(filename, "wb");
if (!file->file)
I_Error("Can't create file %s: %s", filename, strerror(errno));
CONS_Printf("\r%s...\n",filename);
file->currentsize = 0;
file->status = FS_DOWNLOADING;
}
if (file->status == FS_DOWNLOADING)
{
UINT32 pos = LONG(netbuffer->u.filetxpak.position);
UINT16 size = SHORT(netbuffer->u.filetxpak.size);
// Use a special trick to know when the file is complete (not always used)
// WARNING: file fragments can arrive out of order so don't stop yet!
if (pos & 0x80000000)
{
pos &= ~0x80000000;
file->totalsize = pos + size;
}
// We can receive packet in the wrong order, anyway all os support gaped file
fseek(file->file, pos, SEEK_SET);
if (fwrite(netbuffer->u.filetxpak.data,size,1,file->file) != 1)
I_Error("Can't write to %s: %s\n",filename, strerror(ferror(file->file)));
file->currentsize += size;
// Finished?
if (file->currentsize == file->totalsize)
{
fclose(file->file);
file->file = NULL;
file->status = FS_FOUND;
CONS_Printf(M_GetText("Downloading %s...(done)\n"),
filename);
}
}
else
{
const char *s;
switch(file->status)
{
case FS_NOTFOUND:
s = "FS_NOTFOUND";
break;
case FS_FOUND:
s = "FS_FOUND";
break;
case FS_OPEN:
s = "FS_OPEN";
break;
case FS_MD5SUMBAD:
s = "FS_MD5SUMBAD";
break;
default:
s = "unknown";
break;
}
I_Error("Received a file not requested (file id: %d, file status: %s)\n", filenum, s);
}
// Send ack back quickly
if (++filetime == 3)
{
Net_SendAcks(servernode);
filetime = 0;
}
#ifdef CLIENT_LOADINGSCREEN
lastfilenum = filenum;
#endif
}
/** \brief Checks if a node is downloading a file
*
* \param node The node to check for
* \return True if the node is downloading a file
*
*/
boolean SV_SendingFile(INT32 node)
{
return transfer[node].txlist != NULL;
}
/** Cancels all file requests for a node
*
* \param node The destination
* \sa SV_EndFileSend
*
*/
void SV_AbortSendFiles(INT32 node)
{
while (transfer[node].txlist)
SV_EndFileSend(node);
}
void CloseNetFile(void)
{
INT32 i;
// Is sending?
for (i = 0; i < MAXNETNODES; i++)
SV_AbortSendFiles(i);
// Receiving a file?
for (i = 0; i < MAX_WADFILES; i++)
if (fileneeded[i].status == FS_DOWNLOADING && fileneeded[i].file)
{
fclose(fileneeded[i].file);
// File is not complete delete it
remove(fileneeded[i].filename);
}
// Remove PT_FILEFRAGMENT from acknowledge list
Net_AbortPacketType(PT_FILEFRAGMENT);
}
// Functions cut and pasted from Doomatic :)
void nameonly(char *s)
{
size_t j, len;
void *ns;
for (j = strlen(s); j != (size_t)-1; j--)
if ((s[j] == '\\') || (s[j] == ':') || (s[j] == '/'))
{
ns = &(s[j+1]);
len = strlen(ns);
if (false)
M_Memcpy(s, ns, len+1);
else
memmove(s, ns, len+1);
return;
}
}
// Returns the length in characters of the last element of a path.
size_t nameonlylength(const char *s)
{
size_t j, len = strlen(s);
for (j = len; j != (size_t)-1; j--)
if ((s[j] == '\\') || (s[j] == ':') || (s[j] == '/'))
return len - j - 1;
return len;
}
#ifndef O_BINARY
#define O_BINARY 0
#endif
filestatus_t checkfilemd5(char *filename, const UINT8 *wantedmd5sum)
{
#if defined (NOMD5) || defined (_arch_dreamcast)
(void)wantedmd5sum;
(void)filename;
#else
FILE *fhandle;
UINT8 md5sum[16];
if (!wantedmd5sum)
return FS_FOUND;
fhandle = fopen(filename, "rb");
if (fhandle)
{
md5_stream(fhandle,md5sum);
fclose(fhandle);
if (!memcmp(wantedmd5sum, md5sum, 16))
return FS_FOUND;
return FS_MD5SUMBAD;
}
I_Error("Couldn't open %s for md5 check", filename);
#endif
return FS_FOUND; // will never happen, but makes the compiler shut up
}
// Rewritten by Monster Iestyn to be less stupid
// Note: if completepath is true, "filename" is modified, but only if FS_FOUND is going to be returned
// (Don't worry about WinCE's version of filesearch, nobody cares about that OS anymore)
filestatus_t findfile(char *filename, const UINT8 *wantedmd5sum, boolean completepath)
{
filestatus_t homecheck; // store result of last file search
boolean badmd5 = false; // store whether md5 was bad from either of the first two searches (if nothing was found in the third)
// first, check SRB2's "home" directory
homecheck = filesearch(filename, srb2home, wantedmd5sum, completepath, 10);
if (homecheck == FS_FOUND) // we found the file, so return that we have :)
return FS_FOUND;
else if (homecheck == FS_MD5SUMBAD) // file has a bad md5; move on and look for a file with the right md5
badmd5 = true;
// if not found at all, just move on without doing anything
// next, check SRB2's "path" directory
homecheck = filesearch(filename, srb2path, wantedmd5sum, completepath, 10);
if (homecheck == FS_FOUND) // we found the file, so return that we have :)
return FS_FOUND;
else if (homecheck == FS_MD5SUMBAD) // file has a bad md5; move on and look for a file with the right md5
badmd5 = true;
// if not found at all, just move on without doing anything
// finally check "." directory
#ifdef _arch_dreamcast
homecheck = filesearch(filename, "/cd", wantedmd5sum, completepath, 10);
#else
homecheck = filesearch(filename, ".", wantedmd5sum, completepath, 10);
#endif
if (homecheck != FS_NOTFOUND) // if not found this time, fall back on the below return statement
return homecheck; // otherwise return the result we got
return (badmd5 ? FS_MD5SUMBAD : FS_NOTFOUND); // md5 sum bad or file not found
}
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