166 lines
3.3 KiB
C
166 lines
3.3 KiB
C
//
|
|
//
|
|
// GETSBREC.C - Reads records from the .SBR file and stores the fields
|
|
// in the appropriate r_.. buffers.
|
|
//
|
|
|
|
#include "sbrfdef.h"
|
|
#include "..\mbrmake\mbrmake.h"
|
|
|
|
// globals for communicating with clients
|
|
|
|
BYTE near r_rectyp; // current record type
|
|
BYTE near r_majv; // major version num
|
|
BYTE near r_minv; // minor version num
|
|
BYTE near r_lang; // source language
|
|
BYTE near r_fcol; // read column #'s
|
|
WORD near r_lineno; // current line number
|
|
BYTE near r_column = 0; // def/ref column num
|
|
WORD near r_ordinal; // symbol ordinal
|
|
WORD near r_attrib; // symbol attribute
|
|
char near r_bname[PATH_BUF]; // symbol or filename
|
|
char near r_cwd[PATH_BUF]; // .sbr file working directory
|
|
|
|
int near fhCur; // Current input handle
|
|
|
|
#pragma intrinsic(memcpy)
|
|
#pragma intrinsic(strcpy)
|
|
#pragma intrinsic(strlen)
|
|
|
|
#define MY_BUF_SIZE 16384
|
|
|
|
static char sbrBuf[MY_BUF_SIZE + 1];
|
|
static char *pchBuf;
|
|
static int cchBuf;
|
|
|
|
#define GetByte(X) \
|
|
{ \
|
|
if (!cchBuf) { \
|
|
cchBuf = read(fhCur, sbrBuf, MY_BUF_SIZE); \
|
|
sbrBuf[cchBuf] = 0; \
|
|
pchBuf = sbrBuf; \
|
|
\
|
|
if (cchBuf == 0) \
|
|
SBRCorrupt("premature EOF"); \
|
|
} \
|
|
\
|
|
cchBuf--; \
|
|
(X) = (unsigned char)*pchBuf++; \
|
|
}
|
|
|
|
#define GetWord(X) \
|
|
{ \
|
|
\
|
|
GetByte(((char *)&(X))[0]); \
|
|
GetByte(((char *)&(X))[1]); \
|
|
}
|
|
|
|
void
|
|
GetStr(char *buf)
|
|
// get null terminated string from current .sbr file
|
|
//
|
|
{
|
|
register int l;
|
|
|
|
for (;;) {
|
|
// there is always a NULL after the real buffer
|
|
l = strlen(pchBuf);
|
|
|
|
if (l++ < cchBuf) {
|
|
strcpy(buf, pchBuf);
|
|
cchBuf -= l;
|
|
pchBuf += l;
|
|
return;
|
|
}
|
|
|
|
memcpy(buf, pchBuf, cchBuf);
|
|
buf += cchBuf;
|
|
|
|
cchBuf = read(fhCur, sbrBuf, MY_BUF_SIZE);
|
|
sbrBuf[cchBuf] = 0;
|
|
pchBuf = sbrBuf;
|
|
|
|
if (cchBuf == 0)
|
|
SBRCorrupt("premature EOF");
|
|
}
|
|
}
|
|
|
|
BYTE
|
|
GetSBRRec()
|
|
// read the next record from the current .sbr file
|
|
//
|
|
{
|
|
static fFoundHeader;
|
|
BYTE col;
|
|
|
|
// read rectype, check for EOF as we go
|
|
|
|
|
|
if (!cchBuf) {
|
|
cchBuf = read(fhCur, sbrBuf, MY_BUF_SIZE);
|
|
sbrBuf[cchBuf] = 0;
|
|
pchBuf = sbrBuf;
|
|
|
|
if (cchBuf == 0) {
|
|
fFoundHeader = 0; // this is in case we are reinitialized
|
|
return S_EOF;
|
|
}
|
|
}
|
|
|
|
cchBuf--;
|
|
r_rectyp = (unsigned char)*pchBuf++;
|
|
|
|
switch(r_rectyp) {
|
|
case SBR_REC_HEADER:
|
|
if (fFoundHeader)
|
|
SBRCorrupt("Multiple Headers");
|
|
|
|
fFoundHeader = 1;
|
|
GetByte(r_majv);
|
|
GetByte(r_minv);
|
|
GetByte(r_lang);
|
|
GetByte(r_fcol);
|
|
|
|
if (r_majv != 1 || r_minv != 1)
|
|
break;
|
|
|
|
GetStr (r_cwd);
|
|
break;
|
|
|
|
case SBR_REC_MODULE:
|
|
GetStr (r_bname);
|
|
break;
|
|
|
|
case SBR_REC_LINDEF:
|
|
GetWord (r_lineno);
|
|
if (r_lineno)
|
|
r_lineno--;
|
|
break;
|
|
|
|
case SBR_REC_SYMDEF:
|
|
GetWord (r_attrib);
|
|
GetWord (r_ordinal);
|
|
if (r_fcol) GetByte (col);
|
|
GetStr (r_bname);
|
|
break;
|
|
|
|
case SBR_REC_OWNER:
|
|
GetWord (r_ordinal);
|
|
break;
|
|
|
|
case SBR_REC_SYMREFUSE:
|
|
case SBR_REC_SYMREFSET:
|
|
GetWord (r_ordinal);
|
|
if (r_fcol) GetByte (col);
|
|
break;
|
|
|
|
case SBR_REC_MACROBEG:
|
|
case SBR_REC_MACROEND:
|
|
case SBR_REC_BLKBEG:
|
|
case SBR_REC_BLKEND:
|
|
case SBR_REC_MODEND:
|
|
break;
|
|
}
|
|
return (r_rectyp);
|
|
}
|