Boston, MA 02111-1307, USA
*/
-#ifdef __APPLE__
-// include SDL for IPHONEOS code
-# include <TargetConditionals.h>
-# if TARGET_OS_IPHONE
-# include <SDL.h>
-# endif
-#endif
-
#include <limits.h>
#include <fcntl.h>
#endif
#include "quakedef.h"
+
+#if TARGET_OS_IPHONE
+// include SDL for IPHONEOS code
+# include <SDL.h>
+#endif
+
#include "thread.h"
#include "fs.h"
Mem_Free (buffer);
+ if (
+ eocd->cdir_size < 0 || eocd->cdir_size > filesize ||
+ eocd->cdir_offset < 0 || eocd->cdir_offset >= filesize ||
+ eocd->cdir_offset + eocd->cdir_size > filesize
+ )
+ {
+ // Obviously invalid central directory.
+ return false;
+ }
+
return true;
}
// Load the central directory in memory
central_dir = (unsigned char *)Mem_Alloc (tempmempool, eocd->cdir_size);
- lseek (pack->handle, eocd->cdir_offset, SEEK_SET);
+ if (lseek (pack->handle, eocd->cdir_offset, SEEK_SET) == -1)
+ {
+ Mem_Free (central_dir);
+ return -1;
+ }
if(read (pack->handle, central_dir, eocd->cdir_size) != (fs_offset_t) eocd->cdir_size)
{
Mem_Free (central_dir);
if ((ptr[8] & 0x21) == 0 && (ptr[38] & 0x18) == 0)
{
// Still enough bytes for the name?
- if (remaining < namesize || namesize >= (int)sizeof (*pack->files))
+ if (namesize < 0 || remaining < namesize || namesize >= (int)sizeof (*pack->files))
{
Mem_Free (central_dir);
return -1;
return true;
// Load the local file description
- lseek (pack->handle, pfile->offset, SEEK_SET);
+ if (lseek (pack->handle, pfile->offset, SEEK_SET) == -1)
+ {
+ Con_Printf ("Can't seek in package %s\n", pack->filename);
+ return false;
+ }
count = read (pack->handle, buffer, ZIP_LOCAL_CHUNK_BASE_SIZE);
if (count != ZIP_LOCAL_CHUNK_BASE_SIZE || BuffBigLong (buffer) != ZIP_DATA_HEADER)
{
}
+static void FS_mkdir (const char *path)
+{
+ if(COM_CheckParm("-readonly"))
+ return;
+
+#if WIN32
+ if (_mkdir (path) == -1)
+#else
+ if (mkdir (path, 0777) == -1)
+#endif
+ {
+ // No logging for this. The only caller is FS_CreatePath (which
+ // calls it in ways that will intentionally produce EEXIST),
+ // and its own callers always use the directory afterwards and
+ // thus will detect failure that way.
+ }
+}
+
+
/*
============
FS_CreatePath
numpackfiles = header.dirlen / sizeof(dpackfile_t);
- if (numpackfiles > MAX_FILES_IN_PACK)
+ if (numpackfiles < 0 || numpackfiles > MAX_FILES_IN_PACK)
{
Con_Printf ("%s has %i files\n", packfile, numpackfiles);
close(packhandle);
}
pack = (pack_t *)Mem_Alloc(fs_mempool, sizeof (pack_t));
- pack->ignorecase = false; // PAK is case sensitive
+ pack->ignorecase = true; // PAK is sensitive in Quake1 but insensitive in Quake2
strlcpy (pack->filename, packfile, sizeof (pack->filename));
pack->handle = packhandle;
pack->numfiles = 0;
fs_offset_t offset = (unsigned int)LittleLong (info[i].filepos);
fs_offset_t size = (unsigned int)LittleLong (info[i].filelen);
+ // Ensure a zero terminated file name (required by format).
+ info[i].name[sizeof(info[i].name) - 1] = 0;
+
FS_AddFileToPack (info[i].name, pack, offset, size, size, PACKFILE_FLAG_TRUEOFFS);
}
if(access(va(vabuf, sizeof(vabuf), "%s%s/", userdir, gamedirname1), W_OK | X_OK) >= 0)
fd = 1;
else
- fd = 0;
+ fd = -1;
#endif
if(fd >= 0)
{
*/
fs_offset_t FS_Write (qfile_t* file, const void* data, size_t datasize)
{
- fs_offset_t result;
+ fs_offset_t written = 0;
// If necessary, seek to the exact file position we're supposed to be
if (file->buff_ind != file->buff_len)
- lseek (file->handle, file->buff_ind - file->buff_len, SEEK_CUR);
+ {
+ if (lseek (file->handle, file->buff_ind - file->buff_len, SEEK_CUR) == -1)
+ {
+ Con_Printf("WARNING: could not seek in %s.\n");
+ }
+ }
// Purge cached data
FS_Purge (file);
// Write the buffer and update the position
- result = write (file->handle, data, (fs_offset_t)datasize);
+ // LordHavoc: to hush a warning about passing size_t to an unsigned int parameter on Win64 we do this as multiple writes if the size would be too big for an integer (we never write that big in one go, but it's a theory)
+ while (written < (fs_offset_t)datasize)
+ {
+ // figure out how much to write in one chunk
+ fs_offset_t maxchunk = 1<<30; // 1 GiB
+ int chunk = (int)min((fs_offset_t)datasize - written, maxchunk);
+ int result = (int)write (file->handle, (const unsigned char *)data + written, chunk);
+ // if at least some was written, add it to our accumulator
+ if (result > 0)
+ written += result;
+ // if the result is not what we expected, consider the write to be incomplete
+ if (result != chunk)
+ break;
+ }
file->position = lseek (file->handle, 0, SEEK_CUR);
if (file->real_length < file->position)
file->real_length = file->position;
- if (result < 0)
- return 0;
-
- return result;
+ // note that this will never be less than 0 even if the write failed
+ return written;
}
{
if (count > (fs_offset_t)buffersize)
count = (fs_offset_t)buffersize;
- lseek (file->handle, file->offset + file->position, SEEK_SET);
+ if (lseek (file->handle, file->offset + file->position, SEEK_SET) == -1)
+ {
+ // Seek failed. When reading from a pipe, and
+ // the caller never called FS_Seek, this still
+ // works fine. So no reporting this error.
+ }
nb = read (file->handle, &((unsigned char*)buffer)[done], count);
if (nb > 0)
{
{
if (count > (fs_offset_t)sizeof (file->buff))
count = (fs_offset_t)sizeof (file->buff);
- lseek (file->handle, file->offset + file->position, SEEK_SET);
+ if (lseek (file->handle, file->offset + file->position, SEEK_SET) == -1)
+ {
+ // Seek failed. When reading from a pipe, and
+ // the caller never called FS_Seek, this still
+ // works fine. So no reporting this error.
+ }
nb = read (file->handle, file->buff, count);
if (nb > 0)
{
ztk->in_len = 0;
ztk->in_position = 0;
file->position = 0;
- lseek (file->handle, file->offset, SEEK_SET);
+ if (lseek (file->handle, file->offset, SEEK_SET) == -1)
+ Con_Printf("IMPOSSIBLE: couldn't seek in already opened pk3 file.\n");
// Reset the Zlib stream
ztk->zstream.next_in = ztk->input;
return FS_SysFileType (path) != FS_FILETYPE_NONE;
}
-void FS_mkdir (const char *path)
-{
- if(COM_CheckParm("-readonly"))
- return;
-
-#if WIN32
- _mkdir (path);
-#else
- mkdir (path, 0777);
-#endif
-}
-
/*
===========
FS_Search
}
strm.next_in = (unsigned char*)data;
- strm.avail_in = size;
+ strm.avail_in = (unsigned int)size;
tmp = (unsigned char *) Mem_Alloc(tempmempool, size);
if(!tmp)
}
strm.next_out = tmp;
- strm.avail_out = size;
+ strm.avail_out = (unsigned int)size;
if(qz_deflate(&strm, Z_FINISH) != Z_STREAM_END)
{
}
strm.next_in = (unsigned char*)data;
- strm.avail_in = size;
+ strm.avail_in = (unsigned int)size;
do
{
projects / xonotic / darkplaces.git / blobdiff