static void
BuildFileList0(const TCHAR *config_dir, bool warn_duplicates)
{
WIN32_FIND_DATA find_obj;
HANDLE find_handle;
TCHAR find_string[MAX_PATH];
TCHAR subdir_table[MAX_CONFIG_SUBDIRS][MAX_PATH];
TCHAR fullpath[MAX_PATH];
int subdirs = 0;
int i;
_sntprintf_0(find_string, _T("%s\\*"), config_dir);
find_handle = FindFirstFile(find_string, &find_obj);
if (find_handle == INVALID_HANDLE_VALUE)
return;
/* Loop over each config file in main config dir */
do
{
if (o.num_configs >= MAX_CONFIGS)
{
ShowLocalizedMsg(IDS_ERR_MANY_CONFIGS, MAX_CONFIGS);
break;
}
match_t match_type = match(&find_obj, o.ext_string);
if (match_type == match_file)
{
_sntprintf_0(fullpath, _T("%s\\%s"), config_dir, find_obj.cFileName);
if (ConfigAlreadyExists(find_obj.cFileName))
{
if (warn_duplicates)
ShowLocalizedMsg(IDS_ERR_CONFIG_EXIST, find_obj.cFileName);
continue;
}
if (CheckReadAccess (fullpath))
AddConfigFileToList(o.num_configs++, find_obj.cFileName, config_dir);
}
else if (match_type == match_dir)
{
if (_tcsncmp(find_obj.cFileName, _T("."), _tcslen(find_obj.cFileName)) != 0
&& _tcsncmp(find_obj.cFileName, _T(".."), _tcslen(find_obj.cFileName)) != 0
&& subdirs < MAX_CONFIG_SUBDIRS)
{
/* Add dir to dir_table */
_sntprintf_0(subdir_table[subdirs], _T("%s\\%s"), config_dir, find_obj.cFileName);
subdirs++;
}
}
} while (FindNextFile(find_handle, &find_obj));
FindClose(find_handle);
/* Loop over each config file in every subdir */
for (i = 0; i < subdirs; ++i)
{
_sntprintf_0(find_string, _T("%s\\*"), subdir_table[i]);
find_handle = FindFirstFile (find_string, &find_obj);
if (find_handle == INVALID_HANDLE_VALUE)
continue;
do
{
if (o.num_configs >= MAX_CONFIGS)
{
ShowLocalizedMsg(IDS_ERR_MANY_CONFIGS, MAX_CONFIGS);
FindClose(find_handle);
return;
}
/* does file have the correct type and extension? */
if (match(&find_obj, o.ext_string) != match_file)
continue;
if (ConfigAlreadyExists(find_obj.cFileName))
{
if (warn_duplicates)
ShowLocalizedMsg(IDS_ERR_CONFIG_EXIST, find_obj.cFileName);
continue;
}
AddConfigFileToList(o.num_configs++, find_obj.cFileName, subdir_table[i]);
} while (FindNextFile(find_handle, &find_obj));
FindClose(find_handle);
}
}
/*
* write specified amount of bytes from buffer to given desc/offset
* return amount of read bytes or negative error code if call failed
*/
int32_t ZVMWriteHandle(struct NaClApp *nap,
int ch, const char *buffer, int32_t size, int64_t offset)
{
struct ChannelDesc *channel;
int64_t tail;
const char *sys_buffer;
int32_t retcode = ERR_CODE;
assert(nap != NULL);
assert(nap->system_manifest != NULL);
assert(nap->system_manifest->channels != NULL);
/* check the channel number */
if(ch < 0 || ch >= nap->system_manifest->channels_count) return -EINVAL;
channel = &nap->system_manifest->channels[ch];
/* check buffer and convert address */
if(CheckReadAccess(nap, buffer, size) == ERR_CODE) return -EINVAL;
sys_buffer = (char*)NaClUserToSys(nap, (uintptr_t) buffer);
/* prevent writing to the not writable channel */
if(CHANNEL_WRITEABLE(channel) == 0) return -EBADF;
/* ignore user offset for sequential access write */
if(CHANNEL_SEQ_WRITEABLE(channel)) offset = channel->putpos;
/* check arguments sanity */
if(size == 0) return 0; /* success. user has read 0 bytes */
if(size < 0) return -EFAULT;
if(offset < 0) return -EINVAL;
/* check limits */
if(channel->counters[PutsLimit] >= channel->limits[PutsLimit])
return -EDQUOT;
tail = channel->limits[PutSizeLimit] - channel->counters[PutSizeLimit];
if(offset >= channel->limits[PutSizeLimit] &&
!CHANNEL_READABLE(channel)) return -EINVAL;
if(offset >= channel->size + tail) return -EINVAL;
if(size > tail) size = tail;
if(size < 1) return -EDQUOT;
ZLOGS(LOG_DEBUG, "channel %s, buffer=0x%lx, size=%d, offset=%ld",
channel->alias, (intptr_t)buffer, size, offset);
/* write data and update position */
switch(channel->source)
{
case ChannelRegular:
retcode = pwrite(channel->handle, sys_buffer, (size_t)size, (off_t)offset);
if(retcode == -1) retcode = -errno;
break;
case ChannelCharacter:
case ChannelFIFO:
case ChannelSocket:
retcode = fwrite(sys_buffer, 1, (size_t)size, (FILE*)channel->socket);
if(retcode == -1) retcode = -errno;
break;
case ChannelTCP:
retcode = SendMessage(channel, sys_buffer, size);
if(retcode == -1) retcode = -EIO;
break;
default: /* design error */
ZLOGFAIL(1, EFAULT, "invalid channel source");
break;
}
/* update the channel counter, size, position and tag */
++channel->counters[PutsLimit];
if(retcode > 0)
{
channel->counters[PutSizeLimit] += retcode;
UpdateChannelTag(channel, (const char*)sys_buffer, retcode);
channel->putpos = offset + retcode;
channel->size = channel->type == SGetRPut ?
MAX(channel->size, channel->putpos) : channel->putpos;
channel->getpos = channel->putpos;
}
return retcode;
}