/* dos prompting-style user interface
**
** currently supports interfaces for:
** masm, cref
**
** written by:
** randy nevin, microsoft, 5/15/85
**
** 10/90 - Quick conversion to 32 bit by Jeff Spencer
**
** (c)copyright microsoft corp 1985
*/
#include <stdio.h>
#include <ctype.h>
#include <string.h>
#if defined OS2_2 || defined OS2_NT /* OS2 2.0 or NT? */
/* Use common MSDOS code also */
# define MSDOS
# define FLATMODEL
# define FAR
# define PASCAL
#else
# define FAR far
# define PASCAL pascal
#endif
#ifdef MSDOS
# include <dos.h>
#endif
#ifdef MASM
# include "asmmsg.h"
#else
# include "crefmsg.h"
#endif
#define GLOBAL /* C functions and external vars global by default */
#define LOCAL static
#define EXTERNAL extern
#define MASTER 0 /* file name must be present, and is inherited */
#define INHERIT 1 /* if no file name, inherit from Master */
#define NUL 2 /* file name is NUL.ext if not given */
#define NULL 0
#define SLASHORDASH 0
#define SLASHONLY 1
#define DASHONLY 2
#define TOLOWER(c) (c | 0x20) /* works only for alpha inputs */
#ifdef MSDOS
# define SEPARATOR '\\'
# define ALTSEPARATOR '/'
# if !defined CPDOS && !defined OS2_2 && !defined OS2_NT
# define ARGMAX 128 /* maximum length of all arguments */
# else
# define ARGMAX 512 /* maximum length of all arguments */
# endif
LOCAL char Nul[] = "NUL";
extern char *getenv();
# ifdef MASM
LOCAL unsigned char switchar = SLASHORDASH;
EXTERNAL errorcode;
# else
LOCAL unsigned char switchar = SLASHONLY;
# endif
# define ERRFILE stdout
#else
# define SEPARATOR '/'
# define ARGMAX 5120 /* maximum length of all arguments */
LOCAL char Nul[] = "nul";
LOCAL unsigned char switchar = DASHONLY;
# define ERRFILE stderr
#endif
#if defined MSDOS && !defined FLATMODEL
extern char near * pascal __NMSG_TEXT();
extern char FAR * pascal __FMSG_TEXT();
#endif
#if defined MSDOS && defined FLATMODEL
/* For FLATMODEL map message functions to the replacements */
#define __NMSG_TEXT NMsgText
#define __FMSG_TEXT FMsgText
extern char * NMsgText();
extern char * FMsgText();
#endif
#ifdef MASM
# define FILES 4 /* number to prompt for */
# define EX_HEAP 8 /* exit code if heap fails */
#define EX_DSYM 10 /* error defining symbol from command line */
#define PX87 1
#define CVLINE 1
#define CVSYMBOLS 2
#define TERMINATE(message, exitCode)\
terminate((exitCode << 12) | message)
#define TERMINATE1(message, exitCode, a1)\
terminate((exitCode << 12) | message, a1)
# ifdef MSDOS
LOCAL char *Prompt[FILES] = {
"Source filename [",
"Object filename [",
"Source listing [",
"Cross-reference ["
};
# endif
LOCAL char *Ext[FILES] = { /* default extensions */
# ifdef MSDOS
".ASM",
".OBJ",
".LST",
".CRF"
# else
".asm",
".obj",
".lst",
".crf"
# endif
};
LOCAL unsigned char Default[FILES] = { /* default root file name */
MASTER,
INHERIT,
NUL,
NUL
};
#endif
#ifdef CREF
# define FILES 2 /* number to prompt for */
# define EX_HEAP 1 /* exit code if heap fails */
# ifdef MSDOS
LOCAL char *Prompt[FILES] = {
"Cross-reference [",
"Listing ["
};
# endif
LOCAL char *Ext[FILES] = { /* default extensions */
# ifdef MSDOS
".CRF",
".REF"
# else
".crf",
".ref"
# endif
};
LOCAL unsigned char Default[FILES] = { /* default root file name */
MASTER,
INHERIT
};
#endif
GLOBAL char *file[FILES]; /* results show up here; caller knows how many */
LOCAL char *Buffer;
LOCAL char *Master = NULL;
LOCAL unsigned char Nfile = 0; /* file[Nfile] is the next one to set */
LOCAL unsigned char FirstLine = 1; /* defaults are different for first line */
extern unsigned short warnlevel; /* warning level */
extern unsigned short codeview; /* codeview obj level */
extern char loption; /* listing options */
extern char crefopt; /* cross reference options */
#ifdef MSDOS
# if defined OS2_2 || defined OS2_NT
/* OS2 2.0 command line variables will go here */
# else
# if defined CPDOS
/* OS2 1.X variables */
EXTERNAL unsigned _aenvseg;
EXTERNAL unsigned _acmdln;
# else
/* DOS variables */
EXTERNAL unsigned _psp; /* segment addr of program segment prefix */
# endif
# endif
#endif
#ifdef MASM
LOCAL unsigned char lflag = 0;
LOCAL unsigned char cflag = 0;
EXTERNAL char terse;
EXTERNAL unsigned short errornum;
EXTERNAL char lbuf[256 + 512 + 1];
void PASCAL error_line (struct _iobuf *, unsigned char *, short);
#else
char lbuf[512];
#endif
#ifndef MSDOS
EXTERNAL char *gets();
#endif
EXTERNAL char *malloc();
EXTERNAL char *strcat(), *strcpy(), *_strdup(), *strchr(), *strrchr();
LOCAL int DoArgs(); /* defined below */
LOCAL int DoName(); /* defined below */
LOCAL int DoNull(); /* defined below */
LOCAL char *DoSwitch(); /* defined below */
LOCAL HeapError(); /* defined below */
#ifdef MSDOS
LOCAL DoPrompt(); /* defined below */
LOCAL TryAgain(); /* defined below */
#endif
GLOBAL void
UserInterface (
/* get file names & switches from args and subsequent prompts */
int argc,
char **argv,
char *banner
){
register char *p;
register unsigned length;
#if defined MSDOS && !defined OS2_2 && !defined OS2_NT
char FAR *q;
#else
unsigned count;
#endif
Buffer = lbuf;
#ifdef MASM
# ifdef MSDOS
if ((p = getenv("MASM"))) { /* do initialization vars first */
strcpy( Buffer, p ); /* fetch them into the buffer */
DoArgs(); /* process them */
}
# endif
#endif
p = Buffer;
#if defined MSDOS && !defined OS2_2 && !defined OS2_NT
#if defined CPDOS
/* this is how we get the command line if we're on CPDOS */
FP_SEG( q ) = _aenvseg;
FP_OFF( q ) = _acmdln;
while(*q++) ; /* skip argv[0] */
while (isspace( *q )) /* skip blanks between argv[0] and argv[1] */
q++;
length = sizeof(lbuf) - 1;
while (length-- && (*p++ = *q++)) /* copy command line arguments */
;
# else
/* this is how we get the command line if we're on MSDOS */
FP_SEG( q ) = _psp;
FP_OFF( q ) = 0x80;
length = *q++ & 0xFF;
while (length--)
*p++ = *q++;
*p = '\0';
# endif
#else
/* this is how we get the command line if we're on XENIX or OS2 2.0 */
argv++;
count = ARGMAX - 1;
while (--argc) { /* concatenate args */
if ((length = strlen( *argv )) > count) /* don't overflow */
length = count;
strncpy( p, *argv++, length );
p += length;
if ((count -= length) && *argv) { /* separator */
*p++ = ' ';
count--;
}
}
# if !defined OS2_2 && !defined OS2_NT
*p++ = ';';
# endif
*p = '\0';
#endif
#ifdef CREF
printf( "%s", banner );
#endif
DoArgs();
#ifdef MASM
if (!terse)
printf( "%s", banner );
#endif
#ifdef MSDOS
FirstLine = 0;
while (Nfile < FILES)
DoPrompt();
#endif
if (Master && Master != Nul)
free( Master );
}
LOCAL int
DoArgs ()
/* process concatenated args looking for file names and switches */
{
register char *p;
register char *q;
char *filename = NULL;
for (p = Buffer; *p; p++)
#ifdef MSDOS
if (*p == '/'
&& (switchar == SLASHONLY || switchar == SLASHORDASH)
|| *p == '-'
&& (switchar == DASHONLY || switchar == SLASHORDASH))
#else
if (*p == '-')
#endif
{ /* application dependent switch */
#ifdef MSDOS
if (switchar == SLASHORDASH)
switchar = *p == '/' ? SLASHONLY : DASHONLY;
#endif
p = DoSwitch( p );
}
else if (*p == ';') { /* use defaults for everything else */
if (DoName( filename )) { /* possibly NULL */
#ifdef MSDOS
TryAgain();
return( 1 );
#else
# ifdef MASM
printf( __NMSG_TEXT(ER_EXS) );
# else
printf( __NMSG_TEXT(ER_EXC) );
# endif
exit( 1 );
#endif
}
FirstLine = 0; /* ...and away we go! */
while (Nfile < FILES)
if (DoNull()) {
#ifdef MSDOS
TryAgain();
return( 1 );
#else
# ifdef MASM
printf( __NMSG_TEXT(ER_EXS) );
# else
printf( __NMSG_TEXT(ER_EXC) );
# endif
exit( 1 );
#endif
}
return( 0 );
}
else if (*p == ',') { /* file name separator */
if (DoName( filename )) { /* possibly NULL */
#ifdef MSDOS
TryAgain();
return( 1 );
#else
# ifdef MASM
printf( __NMSG_TEXT(ER_EXS) );
# else
printf( __NMSG_TEXT(ER_EXC) );
# endif
exit( 1 );
#endif
}
filename = NULL;
}
else if (!isspace( *p )) { /* gather filename */
q = p + 1;
while (*q && *q != ';' && *q != ',' && !isspace( *q )) {
#ifdef MSDOS
if (*q == '/')
if (switchar == SLASHONLY)
break;
else if (switchar == SLASHORDASH) {
switchar = SLASHONLY;
break;
}
#endif
q++;
}
if (filename) { /* already have one */
if (DoName( filename )) {
#ifdef MSDOS
TryAgain();
return( 1 );
#else
# ifdef MASM
printf( __NMSG_TEXT(ER_EXS) );
# else
printf( __NMSG_TEXT(ER_EXC) );
# endif
exit( 1 );
#endif
}
}
if (!(filename = malloc( q - p + 1 )))
HeapError();
else { /* remember file name */
strncpy( filename, p, q - p );
filename[q - p] = '\0';
}
p = q - 1; /* go to end of file name */
}
if (filename && DoName( filename )) {
#ifdef MSDOS
TryAgain();
return( 1 );
#else
# ifdef MASM
printf( __NMSG_TEXT(ER_EXS) );
# else
printf( __NMSG_TEXT(ER_EXC) );
# endif
exit( 1 );
#endif
}
return( 0 );
}
LOCAL int
DoName ( filename )
/* enter filename as next file name, if appropriate (possibly NULL) */
char *filename;
{
register char *p;
register char *q;
int cb;
if (Nfile >= FILES) { /* too many file names */
if (filename) {
fprintf(ERRFILE,__NMSG_TEXT(ER_EXT) );
free( filename );
}
return( 0 );
}
if (!filename) /* try (MASTER)/INHERIT/NUL */
return( DoNull() );
if (p = strrchr( filename, SEPARATOR ))
p++;
#ifdef MSDOS
else if ((p = strrchr( filename, ':' )) && /* look for drive specifier */
p[1] != NULL )
p++;
#endif
else
p = filename;
#ifdef MSDOS
if (q = strrchr( p, ALTSEPARATOR ))
p = q + 1;
#endif
/* p points to first char of filename past last '\' or ':', if any */
if (!*p) /* last char of filename is '\' or ':'; assume directory */
switch (Default[Nfile]) {
case MASTER:
#ifdef MSDOS
fprintf(ERRFILE,__NMSG_TEXT(ER_INV) );
#endif
free( filename );
return( 1 );
break;
default:
/* case NUL: */
#ifdef MSDOS
if (!FirstLine) {
if (!(p = malloc( strlen( filename )
+ strlen( Nul )
+ strlen( Ext[Nfile] ) + 1 )))
HeapError();
strcat( strcat( strcpy( p, filename ), Nul ), Ext[Nfile] );
break;
}
/* else just treat as inherited from Master */
#endif
case INHERIT:
if (!Master)
Master = Nul;
if (!(p = malloc( strlen( filename )
+ strlen( Master )
+ strlen( Ext[Nfile] ) + 1 )))
HeapError();
strcat( strcat( strcpy( p, filename ), Master ), Ext[Nfile] );
break;
}
else { /* some sort of file name is present */
if (Default[Nfile] == MASTER) /* save Master file name */
if (q = strchr( p, '.' )) {
if (!(Master = malloc( q - p + 1 )))
HeapError();
strncpy( Master, p, q - p );
Master[q - p] = '\0';
}
else if (!(Master = _strdup( p )))
HeapError();
if (strchr( p, '.' )) { /* extension present */
if (!(p = _strdup( filename )))
HeapError();
}
else { /* supply default extension */
cb = 0;
if (p[1] == ':' && p[2] == NULL)
cb = strlen(Master);
if (!(p = malloc( strlen( filename )
+ strlen( Ext[Nfile] ) + 1 + cb ) ))
HeapError();
strcat(strcat(strcpy( p,
filename ),
(cb)? Master: ""),
Ext[Nfile] );
}
}
file[Nfile++] = p;
free( filename );
return( 0 );
}
LOCAL int
DoNull ()
/* select the default name (depends on if FirstLine or not) */
{
char *p;
switch (Default[Nfile]) {
case MASTER:
#ifdef MSDOS
fprintf(ERRFILE,__NMSG_TEXT(ER_INV) );
#endif
return( 1 );
break;
default:
/* case NUL: */
if (!FirstLine
#ifdef MASM
&& !(lflag && Nfile == 2)
&& !(cflag && Nfile == 3)
#endif
) {
if (!(p = malloc( strlen( Nul ) + 1
+ strlen( Ext[Nfile] ) )))
HeapError();
strcat( strcpy( p, Nul ), Ext[Nfile] );
break;
}
/* else just treat as inherited from Master */
case INHERIT:
if (!Master)
Master = Nul;
if (!(p = malloc( strlen( Master ) + 1
+ strlen( Ext[Nfile] ) )))
HeapError();
strcat( strcpy( p, Master ), Ext[Nfile] );
break;
}
file[Nfile++] = p;
return( 0 );
}
#ifdef MASM
# define FALSE 0
# define TRUE 1
#ifdef MSDOS
# define DEF_OBJBUFSIZ 8
#endif
# define CASEU 0
# define CASEL 1
# define CASEX 2
# define INCLUDEMAX 10
# define EX_ARGE 1
# ifdef MSDOS
EXTERNAL unsigned short obufsiz;
# endif
EXTERNAL char segalpha;
EXTERNAL char debug;
EXTERNAL char fltemulate;
EXTERNAL char X87type;
EXTERNAL char inclcnt;
EXTERNAL char *inclpath[];
EXTERNAL char caseflag;
EXTERNAL char dumpsymbols;
EXTERNAL char verbose;
EXTERNAL char origcond;
EXTERNAL char listconsole;
EXTERNAL char checkpure;
int PASCAL definesym();
/* process masm switches */
LOCAL char * DoSwitch ( p )
register char *p;
{
char *q;
char *r;
char c;
int i;
switch (TOLOWER(*++p)) {
case 'a':
segalpha = TRUE;
break;
# ifdef MSDOS
case 'b':
for(p++; isdigit(p[1]); p++);
break;
# endif
case 'c':
cflag = TRUE;
if (isalpha (p[1])) {
if (TOLOWER(*++p) == 's')
crefopt++;
else {
TERMINATE1(ER_UNS, EX_ARGE, *p );
return;
}
}
break;
case 'd':
if (!*++p || isspace( *p ) || *p == ',' || *p == ';') {
debug = TRUE;
p--;
}
else {
for (q = p + 1; *q && !isspace( *q )
&& *q != '=' && *q != ','
&& *q != ';'; q++)
;
if (*q == '=') {
q++;
while (*q && !isspace( *q )
&& *q != ',' && *q != ';')
q++;
}
c = *q;
*q = '\0';
definesym( p );
if (errorcode){
error_line (ERRFILE, "command line", 0);
if (errornum)
exit (EX_DSYM);
}
*q = c;
p = q - 1;
}
break;
case 'e':
fltemulate = TRUE;
X87type = PX87;
break;
case 'h':
#ifdef FLATMODEL
printf("%s\n", __FMSG_TEXT(ER_HDUSE));
#else
printf("%Fs\n", __FMSG_TEXT(ER_HDUSE));
#endif
for (i = ER_H01; i <= ER_H18; i++)
#ifdef FLATMODEL
printf( "\n/%s", __FMSG_TEXT(i));
#else
printf( "\n/%Fs", __FMSG_TEXT(i));
#endif
exit( 0 ); /* let him start again */
break;
case 'i':
for (q = ++p; *q &&
!isspace( *q ) && *q != ',' && *q != ';' &&
*q != (switchar == DASHONLY? '-': '/'); q++)
;
if (q == p)
TERMINATE(ER_PAT, EX_ARGE );
if (inclcnt < INCLUDEMAX - 1) {
if (!(r = malloc( q - p + 1 )))
HeapError();
strncpy( r, p, q - p );
r[q - p] = '\0';
inclpath[inclcnt++] = r;
}
p = q - 1;
break;
case 'l':
lflag = TRUE;
if (isalpha (p[1])) {
if (TOLOWER(*++p) == 'a')
loption++;
else {
TERMINATE1(ER_UNS, EX_ARGE, *p );
return;
}
}
break;
case 'm':
switch (TOLOWER(*++p)) {
case 'l':
caseflag = CASEL;
break;
case 'u':
caseflag = CASEU;
break;
case 'x':
caseflag = CASEX;
break;
default:
TERMINATE1(ER_UNC, EX_ARGE, *p );
return;
}
break;
case 'n':
dumpsymbols = FALSE;
break;
case 'p':
checkpure = TRUE;
break;
case 'r': /* old switch ignored */
break;
case 's':
segalpha = FALSE;
break;
case 't':
terse = TRUE;
verbose = FALSE;
break;
case 'v':
verbose = TRUE;
terse = FALSE;
break;
case 'w':
if (! isdigit(p[1]) ||
(warnlevel = atoi(&p[1])) > 2){
TERMINATE(ER_WAN, EX_ARGE );
return;
}
for(p++; isdigit(p[1]); p++);
break;
case 'x':
origcond = TRUE;
break;
case 'z': /* Zd or Zi apply to codeview */
if (TOLOWER(p[1]) == 'd'){
codeview = CVLINE;
p++;
break;
}
else if (TOLOWER(p[1]) == 'i'){
codeview = CVSYMBOLS;
p++;
break;
}
/* else its just a Z */
listconsole = TRUE;
break;
default:
TERMINATE1(ER_UNS, EX_ARGE, *p );
return;
}
return( p );
}
#endif
#ifdef CREF
LOCAL char *
DoSwitch ( /* p */ )
/* process cref switches (presently, none) */
/* char *p; */
{
fprintf( stderr, "cref has no switches\n" );
exit( 1 );
}
#endif
#ifdef MSDOS
LOCAL
DoPrompt ()
/* prompt user for a file name (any number of optional switches) */
{
unsigned char oldNfile;
fprintf(stderr, Prompt[Nfile] );
switch (Default[Nfile]) {
case MASTER:
break;
case INHERIT:
fprintf(stderr, Master );
break;
default:
/* case NUL: */
fprintf(stderr, Nul );
break;
}
fprintf(stderr, "%s]: ", Ext[Nfile] );
if (!gets( Buffer )) {
fprintf(ERRFILE,__NMSG_TEXT(ER_SIN) );
# ifdef MASM
exit( EX_ARGE );
# else
exit( 1 );
# endif
}
oldNfile = Nfile;
if (!DoArgs() && oldNfile == Nfile && DoNull())
TryAgain();
}
#endif
LOCAL
HeapError ()
/* malloc() has failed; exit program */
{
#ifdef CREF
fprintf(ERRFILE,__NMSG_TEXT(ER_HEP));
exit(EX_HEAP);
#else
TERMINATE(ER_HEP, EX_HEAP);
#endif
}
#ifdef MSDOS
LOCAL
TryAgain ()
/* user caused fatal error; start reprompting from beginning */
{
if (Master && Master != Nul) {
free( Master );
Master = NULL;
}
while (Nfile)
free( file[--Nfile] );
}
#endif
