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Commit a5060cdd authored by rswindell's avatar rswindell
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All SMB functions that access file stream pointers first check if the pointer 

is NULL (not open) and return SMB_ERR_NOT_OPEN in that case.
parent 9110bf83
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with 85 additions and 2 deletions
src/smblib/smblib.c
+ 85
− 2
View file @ a5060cdd
......@@ -348,6 +348,10 @@ int SMBCALL smb_trunchdr(smb_t* smb)
{
time_t start=0;
if(smb->shd_fp==NULL) {
sprintf(smb->last_error,"msgbase not open");
return(SMB_ERR_NOT_OPEN);
}
rewind(smb->shd_fp);
while(1) {
if(!chsize(fileno(smb->shd_fp),0L))
......@@ -380,6 +384,10 @@ int SMBCALL smb_locksmbhdr(smb_t* smb)
{
time_t start=0;
if(smb->shd_fp==NULL) {
sprintf(smb->last_error,"msgbase not open");
return(SMB_ERR_NOT_OPEN);
}
while(1) {
if(!lock(fileno(smb->shd_fp),0L,sizeof(smbhdr_t)+sizeof(smbstatus_t)))
return(0);
......@@ -403,6 +411,10 @@ int SMBCALL smb_getstatus(smb_t* smb)
{
int i;
if(smb->shd_fp==NULL) {
sprintf(smb->last_error,"msgbase not open");
return(SMB_ERR_NOT_OPEN);
}
setvbuf(smb->shd_fp,smb->shd_buf,_IONBF,SHD_BLOCK_LEN);
clearerr(smb->shd_fp);
fseek(smb->shd_fp,sizeof(smbhdr_t),SEEK_SET);
......@@ -421,6 +433,10 @@ int SMBCALL smb_putstatus(smb_t* smb)
{
int i;
if(smb->shd_fp==NULL) {
sprintf(smb->last_error,"msgbase not open");
return(SMB_ERR_NOT_OPEN);
}
clearerr(smb->shd_fp);
fseek(smb->shd_fp,sizeof(smbhdr_t),SEEK_SET);
i=fwrite(&(smb->status),1,sizeof(smbstatus_t),smb->shd_fp);
......@@ -436,6 +452,10 @@ int SMBCALL smb_putstatus(smb_t* smb)
/****************************************************************************/
int SMBCALL smb_unlocksmbhdr(smb_t* smb)
{
if(smb->shd_fp==NULL) {
sprintf(smb->last_error,"msgbase not open");
return(SMB_ERR_NOT_OPEN);
}
return(unlock(fileno(smb->shd_fp),0L,sizeof(smbhdr_t)+sizeof(smbstatus_t)));
}
......@@ -450,6 +470,10 @@ int SMBCALL smb_lockmsghdr(smb_t* smb, smbmsg_t* msg)
{
time_t start=0;
if(smb->shd_fp==NULL) {
sprintf(smb->last_error,"msgbase not open");
return(SMB_ERR_NOT_OPEN);
}
while(1) {
if(!lock(fileno(smb->shd_fp),msg->idx.offset,sizeof(msghdr_t)))
return(0);
......@@ -481,7 +505,7 @@ int SMBCALL smb_getmsgidx(smb_t* smb, smbmsg_t* msg)
if(smb->sid_fp==NULL) {
sprintf(smb->last_error,"index not open");
return(1);
return(SMB_ERR_NOT_OPEN);
}
clearerr(smb->sid_fp);
if(!msg->hdr.number) {
......@@ -539,6 +563,10 @@ int SMBCALL smb_getmsgidx(smb_t* smb, smbmsg_t* msg)
/****************************************************************************/
int SMBCALL smb_getfirstidx(smb_t* smb, idxrec_t *idx)
{
if(smb->sid_fp==NULL) {
sprintf(smb->last_error,"index not open");
return(SMB_ERR_NOT_OPEN);
}
clearerr(smb->sid_fp);
fseek(smb->sid_fp,0,SEEK_SET);
if(!fread(idx,sizeof(idxrec_t),1,smb->sid_fp)) {
......@@ -555,6 +583,10 @@ int SMBCALL smb_getlastidx(smb_t* smb, idxrec_t *idx)
{
long length;
if(smb->sid_fp==NULL) {
sprintf(smb->last_error,"index not open");
return(SMB_ERR_NOT_OPEN);
}
clearerr(smb->sid_fp);
length=filelength(fileno(smb->sid_fp));
if(length<sizeof(idxrec_t)) {
......@@ -616,6 +648,10 @@ int SMBCALL smb_getmsghdr(smb_t* smb, smbmsg_t* msg)
ulong l,offset;
idxrec_t idx;
if(smb->shd_fp==NULL) {
sprintf(smb->last_error,"msgbase not open");
return(SMB_ERR_NOT_OPEN);
}
rewind(smb->shd_fp);
fseek(smb->shd_fp,msg->idx.offset,SEEK_SET);
idx=msg->idx;
......@@ -839,6 +875,10 @@ int SMBCALL smb_copymsgmem(smbmsg_t* msg, smbmsg_t* srcmsg)
/****************************************************************************/
int SMBCALL smb_unlockmsghdr(smb_t* smb, smbmsg_t* msg)
{
if(smb->shd_fp==NULL) {
sprintf(smb->last_error,"msgbase not open");
return(SMB_ERR_NOT_OPEN);
}
return(unlock(fileno(smb->shd_fp),msg->idx.offset,sizeof(msghdr_t)));
}
......@@ -1050,7 +1090,10 @@ int SMBCALL smb_putmsg(smb_t* smb, smbmsg_t* msg)
/****************************************************************************/
int SMBCALL smb_putmsgidx(smb_t* smb, smbmsg_t* msg)
{
if(smb->sid_fp==NULL) {
sprintf(smb->last_error,"index not open");
return(SMB_ERR_NOT_OPEN);
}
clearerr(smb->sid_fp);
fseek(smb->sid_fp,msg->offset*sizeof(idxrec_t),SEEK_SET);
if(!fwrite(&msg->idx,sizeof(idxrec_t),1,smb->sid_fp)) {
......@@ -1073,6 +1116,10 @@ int SMBCALL smb_putmsghdr(smb_t* smb, smbmsg_t* msg)
ushort i;
ulong l;
if(smb->shd_fp==NULL) {
sprintf(smb->last_error,"msgbase not open");
return(SMB_ERR_NOT_OPEN);
}
if(msg->idx.offset<sizeof(smbhdr_t)+sizeof(smbstatus_t)
|| msg->idx.offset<smb->status.header_offset) {
sprintf(smb->last_error,"invalid header offset: %ld",msg->idx.offset);
......@@ -1142,6 +1189,10 @@ int SMBCALL smb_create(smb_t* smb)
char str[128];
smbhdr_t hdr;
if(smb->shd_fp==NULL || smb->sdt_fp==NULL || smb->sid_fp==NULL) {
sprintf(smb->last_error,"msgbase not open");
return(SMB_ERR_NOT_OPEN);
}
if(filelength(fileno(smb->shd_fp))>=sizeof(smbhdr_t)+sizeof(smbstatus_t)
&& smb_locksmbhdr(smb)) /* header exists, so lock it */
return(1);
......@@ -1213,6 +1264,10 @@ long SMBCALL smb_allocdat(smb_t* smb, ulong length, ushort headers)
ushort i,j;
ulong l,blocks,offset=0L;
if(smb->sda_fp==NULL) {
sprintf(smb->last_error,"msgbase not open");
return(SMB_ERR_NOT_OPEN);
}
blocks=smb_datblocks(length);
j=0; /* j is consecutive unused block counter */
fflush(smb->sda_fp);
......@@ -1247,6 +1302,10 @@ long SMBCALL smb_fallocdat(smb_t* smb, ulong length, ushort headers)
{
ulong l,blocks,offset;
if(smb->sda_fp==NULL) {
sprintf(smb->last_error,"msgbase not open");
return(SMB_ERR_NOT_OPEN);
}
fflush(smb->sda_fp);
clearerr(smb->sda_fp);
blocks=smb_datblocks(length);
......@@ -1322,6 +1381,10 @@ int SMBCALL smb_incdat(smb_t* smb, ulong offset, ulong length, ushort headers)
ushort i;
ulong l,blocks;
if(smb->sda_fp==NULL) {
sprintf(smb->last_error,"msgbase not open");
return(SMB_ERR_NOT_OPEN);
}
clearerr(smb->sda_fp);
blocks=smb_datblocks(length);
for(l=0;l<blocks;l++) {
......@@ -1350,6 +1413,10 @@ int SMBCALL smb_freemsghdr(smb_t* smb, ulong offset, ulong length)
uchar c=0;
ulong l,blocks;
if(smb->sha_fp==NULL) {
sprintf(smb->last_error,"msgbase not open");
return(SMB_ERR_NOT_OPEN);
}
clearerr(smb->sha_fp);
blocks=smb_hdrblocks(length);
fseek(smb->sha_fp,offset/SHD_BLOCK_LEN,SEEK_SET);
......@@ -1397,6 +1464,10 @@ long SMBCALL smb_allochdr(smb_t* smb, ulong length)
ushort i;
ulong l,blocks,offset=0;
if(smb->sha_fp==NULL) {
sprintf(smb->last_error,"msgbase not open");
return(SMB_ERR_NOT_OPEN);
}
blocks=smb_hdrblocks(length);
i=0; /* i is consecutive unused block counter */
fflush(smb->sha_fp);
......@@ -1433,6 +1504,10 @@ long SMBCALL smb_fallochdr(smb_t* smb, ulong length)
uchar c=1;
ulong l,blocks,offset;
if(smb->sha_fp==NULL) {
sprintf(smb->last_error,"msgbase not open");
return(SMB_ERR_NOT_OPEN);
}
blocks=smb_hdrblocks(length);
fflush(smb->sha_fp);
clearerr(smb->sha_fp);
......@@ -1456,6 +1531,10 @@ long SMBCALL smb_hallochdr(smb_t* smb)
{
ulong l;
if(smb->shd_fp==NULL) {
sprintf(smb->last_error,"msgbase not open");
return(SMB_ERR_NOT_OPEN);
}
fflush(smb->shd_fp);
fseek(smb->shd_fp,0L,SEEK_END);
l=ftell(smb->shd_fp);
......@@ -1476,6 +1555,10 @@ long SMBCALL smb_hallocdat(smb_t* smb)
{
long l;
if(smb->sdt_fp==NULL) {
sprintf(smb->last_error,"msgbase not open");
return(SMB_ERR_NOT_OPEN);
}
fflush(smb->sdt_fp);
fseek(smb->sdt_fp,0L,SEEK_END);
l=ftell(smb->sdt_fp);
......
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