/* Returns NULL on failure */
hash_t** SMBCALL smb_msghashes(smbmsg_t* msg, const uchar* body)
{
size_t h=0;
uchar flags=SMB_HASH_CRC16|SMB_HASH_CRC32|SMB_HASH_MD5;
hash_t** hashes; /* This is a NULL-terminated list of hashes */
hash_t* hash;
time_t t=time(NULL);
if((hashes=(hash_t**)malloc(sizeof(hash_t*)*(SMB_HASH_SOURCE_TYPES+1)))==NULL)
return(NULL);
memset(hashes, 0, sizeof(hash_t*)*(SMB_HASH_SOURCE_TYPES+1));
if(msg->id!=NULL &&
(hash=smb_hashstr(msg->hdr.number, t, SMB_HASH_SOURCE_MSG_ID, flags, msg->id))!=NULL)
hashes[h++]=hash;
if(msg->ftn_msgid!=NULL &&
(hash=smb_hashstr(msg->hdr.number, t, SMB_HASH_SOURCE_FTN_ID, flags, msg->ftn_msgid))!=NULL)
hashes[h++]=hash;
flags|=SMB_HASH_STRIP_WSP;
if(body!=NULL &&
(hash=smb_hashstr(msg->hdr.number, t, SMB_HASH_SOURCE_BODY, flags, body))!=NULL)
hashes[h++]=hash;
return(hashes);
}
/* length=0 specifies ASCIIZ data */
int SMBCALL smb_getmsgidx_by_hash(smb_t* smb, smbmsg_t* msg, unsigned source
,unsigned flags, const void* data, size_t length)
{
int retval;
size_t n;
hash_t** hashes;
hash_t found;
if((hashes=(hash_t**)malloc(sizeof(hash_t*)*2))==NULL)
return(SMB_ERR_MEM);
if(length==0)
hashes[0]=smb_hashstr(0,0,source,flags,data);
else
hashes[0]=smb_hash(0,0,source,flags,data,length);
if(hashes[0]==NULL)
return(SMB_ERR_MEM);
hashes[1]=NULL; /* terminate list */
if((retval=smb_findhash(smb, hashes, &found, 1<<source, FALSE))==SMB_SUCCESS) {
if(found.number==0)
retval=SMB_FAILURE; /* use better error value here? */
else {
msg->hdr.number=found.number;
retval=smb_getmsgidx(smb, msg);
}
}
FREE_LIST(hashes,n);
return(retval);
}
/* Returns NULL on failure */
hash_t** SMBCALL smb_msghashes(smbmsg_t* msg, const uchar* body, long source_mask)
{
size_t h=0;
uchar flags=SMB_HASH_CRC16|SMB_HASH_CRC32|SMB_HASH_MD5;
hash_t** hashes; /* This is a NULL-terminated list of hashes */
hash_t* hash;
time_t t=time(NULL);
if((hashes=(hash_t**)malloc(sizeof(hash_t*)*(SMB_HASH_SOURCE_TYPES+1)))==NULL)
return(NULL);
memset(hashes, 0, sizeof(hash_t*)*(SMB_HASH_SOURCE_TYPES+1));
if(msg->id!=NULL && (source_mask&(1<<SMB_HASH_SOURCE_MSG_ID)) &&
(hash=smb_hashstr(msg->hdr.number, (uint32_t)t, SMB_HASH_SOURCE_MSG_ID, flags, msg->id))!=NULL)
hashes[h++]=hash;
if(msg->ftn_msgid!=NULL && (source_mask&(1<<SMB_HASH_SOURCE_FTN_ID)) &&
(hash=smb_hashstr(msg->hdr.number, (uint32_t)t, SMB_HASH_SOURCE_FTN_ID, flags, msg->ftn_msgid))!=NULL)
hashes[h++]=hash;
if(body!=NULL && (source_mask&(1<<SMB_HASH_SOURCE_BODY)) &&
(hash=smb_hashstr(msg->hdr.number, (uint32_t)t, SMB_HASH_SOURCE_BODY, flags|SMB_HASH_STRIP_WSP|SMB_HASH_STRIP_CTRL_A, (const char *)body))!=NULL)
hashes[h++]=hash;
if(msg->subj!=NULL && (source_mask&(1<<SMB_HASH_SOURCE_SUBJECT))) {
char* p=msg->subj;
while(*p) {
char* tp=strchr(p,':');
char* sp=strchr(p,' ');
if(tp!=NULL && (sp==NULL || tp<sp)) {
p=tp+1;
SKIP_WHITESPACE(p);
continue;
}
break;
}
if((hash=smb_hashstr(msg->hdr.number, (uint32_t)t, SMB_HASH_SOURCE_SUBJECT, flags, p))!=NULL)
hashes[h++]=hash;
}
return(hashes);
}
