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comm2.c
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C/C++ Source or Header
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1991-02-20
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28KB
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1,176 lines
/*
* COMM2.C
*
* (c)1986 Matthew Dillon 9 October 1986
*
* Version 2.07M by Steve Drew 10-Sep-87
* Version 4.01A by Carlo Borreo & Cesare Dieni 17-Feb-90
* Version 5.00L by Urban Mueller 17-Feb-91
*
*/
#include "shell.h"
/* comm2.c */
static long dptrtosecs(struct DPTR *d);
static long timeof(char *s);
static int evalif(void);
static int clinum(char *name);
static int copydir(long srcdir, long destdir, int recur);
static int copyfile(char *srcname, long srcdir, char *destname, long destdir);
static int file_date(struct DateStamp *date, char *name);
static void changedisk(struct MsgPort *task);
static int func_array(char **fav, int fac);
static int func_int(int i);
static int func_bool(int i);
static int func_string(char *str);
static int commas(char **av, int ac, int n);
static int wordset(char **av, int ac, char **(*func)(char **,int,char**,int,int*,int));
static int split_arg(char **av, int ac);
static char *info_part(char **av, int ac, int n, char *buf);
/* Casting conveniences */
#define BPTR_TO_C(strtag, var) ((struct strtag *)(BADDR( (ULONG) var)))
#define PROC(task) ((struct Process *)task)
#define CLI(proc) (BPTR_TO_C(CommandLineInterface, proc->pr_CLI))
/* Externs */
extern int has_wild; /* flag set if any arg has a ? or * */
/* globals */
static int cp_update, cp_date, cp_flags, cp_fresh;
do_abortline( void )
{
Exec_abortline = 1;
return 0;
}
do_return( void )
{
int retcode=(ac<2 ? 0 : atoi(av[1]));
Exec_abortline = 1;
if (Src_stack) {
#ifdef AZTEC_C
FILE *ptr = Src_base[Src_stack - 1];
ptr->_bp = ptr->_bend;
ptr->_flags |= _IOEOF;
#else
fseek (Src_base[Src_stack - 1], 0L, 2);
#endif
return retcode;
} else
main_exit(retcode);
return 0;
}
/*
* STRHEAD
*
* place a string into a variable removing everything after and including
* the 'break' character
*
* strhead varname breakchar string
*
*/
do_strhead( void )
{
char *s;
if (s=index(av[3],*av[2])) *s='\0';
set_var (LEVEL_SET, av[1], av[3]);
return 0;
}
do_strtail( void )
{
char *s;
if (s=index(av[3],*av[2])) s++; else s=av[3];
set_var (LEVEL_SET, av[1], s);
return 0;
}
static long
dptrtosecs(struct DPTR *d)
{
struct DateStamp *ds=(&d->fib->fib_Date);
return ds->ds_Days*86400 + ds->ds_Minute*60 + ds->ds_Tick/TICKS_PER_SECOND;
}
static long
timeof(char *s)
{
struct DPTR *d;
int dummy;
long n;
if ( (d=dopen(s,&dummy))==NULL ) return 0L;
n=dptrtosecs(d);
dclose(d);
return n;
}
/*
* if -f file (exists) or:
*
* if A < B <, >, =, <=, >=, <>, where A and B are either:
* nothing
* a string
* a value (begins w/ number)
*/
do_if( char *garbage, int com )
{
int result;
switch (com) {
case 0:
if (If_stack && If_base[If_stack - 1])
If_base[If_stack++] = 1;
else {
result=evalif();
If_base[If_stack++]=(options & 64 ? result : !result);
}
break;
case 1:
if (If_stack > 1 && If_base[If_stack - 2]) break;
if (If_stack) If_base[If_stack - 1] ^= 1;
break;
case 2:
if (If_stack) --If_stack;
break;
}
disable = (If_stack) ? If_base[If_stack - 1] : 0;
if (If_stack >= MAXIF) {
fprintf(stderr,"If's too deep\n");
disable = If_stack = 0;
return -1;
}
if (forward_goto) disable = If_base[If_stack - 1] = 0;
return 0;
}
static int
evalif(void)
{
char c, *str, *left, *right, *cmp;
long num, t0, isint, i=1;
switch(options & ~64) {
case 0:
for( i=1; i<ac; i++ )
if( strlen(str=av[i])<=2 && *str && index("<=>",*str) &&
(!str[1] || index("<=>",str[1])))
break;
if ( i==ac )
return ac>1 && *av[1] && strcmp(av[1],"0");
left = compile_av(av,1,i ,0xA0, 0);
right= compile_av(av,i+1,ac,0xA0, 0);
cmp = av[i];
num = Atol(left);
isint = ! IoErr();
num -= Atol(right);
isint &= ! IoErr();
if (!isint) num=strcmp(left,right);
if (num < 0) c='<';
else if (num > 0) c='>';
else if (num == 0) c='=';
return index(cmp, c) != NULL;
case 1:
return do_rpn(NULL,i);
case 2:
return exists(av[i]);
case 4:
t0=timeof(av[i++]);
for ( ; i<ac ; i++)
if (t0<=timeof(av[i])) return 1;
return 0;
case 8:
return AvailMem( MEMF_FAST )!=0;
case 16:
return isdir(av[i])!=0;
case 32:
return get_var(LEVEL_SET,av[i]) != 0;
default:
ierror(NULL,500);
}
return 0;
}
do_label( void )
{
char aseek[32];
if (Src_stack == 0) {
ierror (NULL, 502);
return -1;
}
sprintf (aseek, "%ld %d", Src_pos[Src_stack-1], If_stack);
set_var (LEVEL_LABEL + Src_stack - 1, av[1], aseek);
if (!strcmp(av[1],get_var(LEVEL_SET,v_gotofwd)))
forward_goto = 0;
return 0;
}
do_goto( void )
{
int new;
long pos;
char *lab;
if (Src_stack == 0) {
ierror (NULL, 502);
} else {
lab = get_var (LEVEL_LABEL + Src_stack - 1, av[1]);
if (lab == NULL) {
forward_goto = 1;
set_var (LEVEL_SET, v_gotofwd, av[1]);
return(0);
} else {
pos = atoi(lab);
fseek (Src_base[Src_stack - 1], pos, 0);
Src_pos[Src_stack - 1] = pos;
new = atoi(next_word(lab));
for (; If_stack < new; ++If_stack)
If_base[If_stack] = 0;
If_stack = new;
}
}
Exec_abortline = 1;
return (0); /* Don't execute rest of this line */
}
do_inc(char *garbage, int com)
{
char *var, num[32];
if (ac>2) com *= atoi(av[2]);
if (var = get_var (LEVEL_SET, av[1])) {
sprintf (num, "%d", atoi(var)+com);
set_var (LEVEL_SET, av[1], num);
}
return 0;
}
do_input( void )
{
char *str, in[256], *get, *put;
int i, quote=0;
if( options&2 ) {
if( !IsInteractive(Input()) ) return 20;
setrawcon( -1, 0 );
in[1]=0;
for ( i=1; i<ac; ++i) {
in[0]=getchar();
set_var (LEVEL_SET, av[i], in);
}
setrawcon( 2, 0 );
return 0;
}
for ( i=1; i<ac; ++i)
if (fgets(in,256,stdin)) {
str=in, put=in+strlen(in)-1;
if( *put=='\n' ) *put=0;
if( !(options&1) ) {
while( *str==' ' ) str++;
for( put=get=str; *get; get++) {
if( *get=='\"' )
quote=1-quote;
else if( *get==' ' && !quote )
*put++=0xA0;
else
*put++=*get;
}
*put=0;
while( put>str && *(put-1)==0xA0 ) *--put=0;
}
set_var (LEVEL_SET, av[i], str);
}
return 0;
}
do_ver( void )
{
extern char shellname[];
puts(shellname);
puts("1.00 Lattice (c) 1986 Matthew Dillon\n"
"2.05 Manx (M) versions by Steve Drew\n"
"3.02 ARP (A) versions by Carlo Borreo, Cesare Dieni\n"
"4.00 ARP 1.3 version by Carlo Borreo, Cesare Dieni\n"
"5.00 Lattice version by Urban Mueller (umueller@iiic.ethz.ch)\n");
printf("Compiled: "__DATE__" "__TIME__" with "COMPILER"\n" );
return 0;
}
static int
clinum( char *name )
{
int ncli=(long)FindCLI(0L), count;
struct Task *task;
char cmd[40+1];
if( *name>='0' && *name<='9' )
return atoi( name );
Forbid();
for (count = 1; count <= ncli ; count++)
if (task = (struct Task *)FindCLI(count)) {
if ( !PROC(task)->pr_TaskNum || PROC(task)->pr_CLI == 0) continue;
BtoCStr(cmd, CLI(PROC(task))->cli_CommandName, 40L);
if( !Strcmp( BaseName( cmd ), name ))
goto done;
}
count=-1;
done:
Permit();
return count;
}
do_ps( void )
{
/* this code fragment based on ps.c command by Dewi Williams */
int count; /* loop variable */
struct Task *task; /* EXEC descriptor */
char strbuf[64+1]; /* scratch for btocstr() */
char cmd[40+1], *com; /* holds cmd name */
long ncli,mycli,cli,i;
char onoff[80];
memset( onoff, 0, 80 );
for( i=1; i<ac; i++ )
onoff[ 1+clinum( av[i] ) ]=1;
if( options&2 )
for( i=0; i<80; i++ )
onoff[i]=1-onoff[i];
printf("Proc Command Name CLI Type Pri. Address Directory\n");
Forbid();
ncli=(long)FindCLI(0L);
mycli=interactive() ? Myprocess->pr_TaskNum : -1;
for (count = 1; count <= ncli ; count++) /* or just assume 20?*/
if (task = (struct Task *)FindCLI((long)count)) {/* Sanity check */
cli=PROC(task)->pr_TaskNum;
if( ac>1 && !onoff[1+cli] )
continue;
if ( cli==0 || PROC(task)->pr_CLI == 0) continue; /* or complain? */
BtoCStr(cmd, CLI(PROC(task))->cli_CommandName, 40L);
BtoCStr(strbuf,CLI(PROC(task))->cli_SetName , 64L);
com=cmd;
if( !(options&1) )
com=BaseName(com);
printf("%c%2d %-20.20s %-11.11s %3d %8lx %s\n",
cli==mycli ? '*' : ' ',
count,
com,
task->tc_Node.ln_Name,
(signed char)task->tc_Node.ln_Pri,
task,
strbuf
);
}
Permit();
return 0;
}
/*
* CP [-d] [-u] file file
* CP [-d] [-u] file file file... destdir
* CP [-r][-u][-d] dir dir dir... destdir
*/
char *errstr; /* let's be alittle more informative */
do_copy( void )
{
int recur, ierr;
char *destname;
char destisdir;
FIB *fib;
int i=1;
errstr = "";
ierr = 0;
fib = (FIB *)AllocMem((long)sizeof(FIB), MEMF_PUBLIC);
recur = (options & 0x01);
cp_update = (options & 0x02);
cp_date =!(options & 0x04); /* the default is keep orignal file date */
cp_flags =!(options & 0x08);
cp_fresh = (options & 0x10);
destname = av[ac - 1];
if (ac < i + 2) {
ierr = 500;
goto done;
}
destisdir = isdir(destname);
if (ac > i + 2 && !destisdir) {
ierr = 507;
goto done;
}
/*
* copy set: reduce to:
* file to file file to file
* dir to file (NOT ALLOWED)
* file to dir dir to dir
* dir to dir dir to dir
*
*/
for (; i<ac-1 && !dobreak(); ++i) {
short srcisdir = isdir(av[i]);
if (srcisdir && has_wild && (ac >2)) /* hack to stop dir's from */
continue; /* getting copied if specified */
/* from wild expansion */
if (srcisdir) {
BPTR srcdir, destdir;
if (!destisdir) {
if (exists(destname)) {
ierr = 507; /* disallow dir to file */
goto done;
}
if (destdir = CreateDir(destname)) UnLock(destdir);
destisdir = 1;
}
if (!(destdir = Lock(destname, ACCESS_READ))) {
ierr = 205;
errstr = destname;
goto done;
}
if (!(srcdir = Lock(av[i], ACCESS_READ))) {
ierr = 205;
errstr = av[i];
UnLock(destdir);
goto done;
}
ierr = copydir(srcdir, destdir, recur);
UnLock(srcdir);
UnLock(destdir);
if (ierr) break;
} else { /* FILE to DIR, FILE to FILE */
BPTR destdir, srcdir, tmp;
char *destfilename;
srcdir = (BPTR)(Myprocess->pr_CurrentDir);
if ((tmp = Lock(av[i], ACCESS_READ)) == NULL || !Examine(tmp,fib)) {
if (tmp) UnLock(tmp);
ierr = 205;
errstr = av[i];
goto done;
}
UnLock(tmp);
if (destisdir) {
destdir = Lock(destname, ACCESS_READ);
destfilename = fib->fib_FileName;
} else {
destdir = srcdir;
destfilename = destname;
}
printf(" %s..",av[i]);
fflush(stdout);
ierr = copyfile(av[i], srcdir, destfilename, destdir);
if (destisdir) UnLock(destdir);
if (ierr) break;
}
}
done:
FreeMem(fib, (long)sizeof(FIB));
if (ierr) {
ierror(errstr, ierr);
return(20);
}
return 0;
}
static int
copydir(BPTR srcdir, BPTR destdir, int recur)
{
static int level;
BPTR cwd;
FIB *srcfib;
BPTR destlock, srclock;
int ierr;
level++;
ierr = 0;
srcfib = (FIB *)AllocMem((long)sizeof(FIB), MEMF_PUBLIC);
if (Examine(srcdir, srcfib)) {
while (ExNext(srcdir, srcfib)) {
if (CHECKBREAK())
break;
if (srcfib->fib_DirEntryType < 0) {
printf("%*s%s..",(level-1) * 6," ",srcfib->fib_FileName);
fflush(stdout);
ierr = copyfile(srcfib->fib_FileName,srcdir,srcfib->fib_FileName,destdir);
if (ierr) break;
} else {
if (recur) {
cwd = CurrentDir(srcdir);
if (srclock = Lock(srcfib->fib_FileName, ACCESS_READ)) {
CurrentDir(destdir);
if (!(destlock = Lock(srcfib->fib_FileName,ACCESS_WRITE))) {
destlock = CreateDir(srcfib->fib_FileName);
printf("%*s%s (Dir)....[Created]\n",(level-1) * 6,
" ",srcfib->fib_FileName);
/* UnLock and re Lock if newly created
* for file_date() to work properly */
if (destlock)
UnLock(destlock);
destlock = Lock(srcfib->fib_FileName, ACCESS_WRITE);
} else
printf("%*s%s (Dir)\n",(level-1) * 6," ",srcfib->fib_FileName);
if (destlock) {
ierr = copydir(srclock, destlock, recur);
UnLock(destlock);
} else {
ierr = (int)((long)IoErr());
}
UnLock(srclock);
} else {
ierr = (int)((long)IoErr());
}
CurrentDir(cwd);
if (ierr)
break;
}
}
}
} else {
ierr = IoErr();
}
--level;
FreeMem(srcfib, (long)sizeof(FIB));
return(ierr);
}
#define COPYBUF 8192
static int
copyfile(char *srcname, BPTR srcdir, char *destname, BPTR destdir)
{
BPTR cwd;
BPTR f1, f2;
long i;
int stat,ierr;
char *buf;
struct DPTR *dp, *dps = NULL;
if ((buf = (char *)AllocMem(COPYBUF, MEMF_PUBLIC|MEMF_CLEAR))==NULL)
{ ierr = 103; goto fail; }
ierr = 0;
cwd = CurrentDir(srcdir);
if ((f1=Open(srcname, MODE_OLDFILE))==NULL)
{ errstr = srcname; ierr = 205; goto fail; }
dps = dopen(srcname,&stat);
CurrentDir(destdir);
if (cp_update || cp_fresh) {
if( dp=dopen(destname, &stat) ) {
if ( dptrtosecs(dp) >= dptrtosecs(dps) &&
!Strcmp(dps->fib->fib_FileName, dp->fib->fib_FileName))
{ dclose(dp); Close(f1); printf("..not newer\n"); goto fail; }
dclose(dp);
} else if( cp_fresh ) {
Close(f1); printf("..not there\n"); goto fail;
}
}
if ((f2=Open(destname, MODE_NEWFILE))==NULL)
{ Close(f1); ierr = (int)((long)IoErr()); errstr=destname; goto fail; }
while (i = Read(f1, buf, COPYBUF))
if (Write(f2, buf, i) != i)
{ ierr = IoErr(); break; }
Close(f2);
Close(f1);
if (!ierr) {
if (cp_date) file_date(&dps->fib->fib_Date, destname);
if (cp_flags ) {
SetProtection( destname, dps->fib->fib_Protection&~FIBF_ARCHIVE);
if( *dps->fib->fib_Comment )
SetComment( destname, dps->fib->fib_Comment );
}
printf("..copied\n");
} else
DeleteFile(destname);
fail:
dclose(dps);
if (buf) FreeMem(buf, 8192L);
CurrentDir(cwd);
return(ierr);
}
do_touch( void )
{
struct DateStamp ds;
int i;
DateStamp(&ds);
for (i=1; i<ac; i++)
if (file_date(&ds, av[i]))
ierror(av[i],500);
else
clear_archive_bit( av[i] );
return 0;
}
static int
file_date( struct DateStamp *date, char *name )
{
long packargs[7];
struct MsgPort *task;
struct DPTR *tmp;
BPTR dirlock;
char *ptr;
int stat;
if (!(task = (struct MsgPort *)DeviceProc(name))) return(1);
if (tmp = dopen(name, &stat)) {
dirlock = ParentDir(tmp->lock);
ptr=AllocMem(65L,MEMF_PUBLIC);
CtoBStr(tmp->fib->fib_FileName,(ULONG)ptr >> 2L,64L);
dclose(tmp);
packargs[1]=dirlock;
packargs[2]=(ULONG)ptr >> 2L;
packargs[3]=(long)date;
SendPacket(ACTION_SET_DATE,packargs,task);
UnLock(dirlock);
FreeMem(ptr,65L);
}
return 0;
}
do_addbuffers( void )
{
long packargs[7], i;
struct MsgPort *task;
for( i=1; i<=ac-2; i+=2 ) {
if( i==ac-1 )
{ ierror( av[i], 500 ); return 20; }
if( !(task=(struct MsgPort *)DeviceProc(av[i])))
{ ierror(av[1],510); return 20; }
packargs[0]=myatoi(av[i+1],1,32767); if (atoierr) return 20;
SendPacket(ACTION_MORE_CACHE,packargs,task);
}
return 0;
}
do_relabel( void )
{
long packargs[7];
struct MsgPort *task=(struct MsgPort *)DeviceProc(av[1]);
char *ptr;
if (!task) { ierror(av[1],510); return 20; }
ptr=AllocMem(65L,MEMF_PUBLIC);
CtoBStr(av[2],(ULONG)ptr >> 2L,64L);
packargs[0]=(ULONG)ptr >> 2L;
SendPacket(ACTION_RENAME_DISK,packargs,task);
FreeMem(ptr,65L);
Delay(10);
changedisk(task);
return 0;
}
do_diskchange( void )
{
struct MsgPort *task=(struct MsgPort *)DeviceProc(av[1]);
if (!task) { ierror(av[1],510); return 20; }
changedisk(task);
return 0;
}
static void
changedisk(struct MsgPort *task)
{
long packargs[7];
packargs[0]=1L;
SendPacket(ACTION_INHIBIT,packargs,task);
packargs[0]=0L;
SendPacket(ACTION_INHIBIT,packargs,task);
}
extern int atoierr;
static int
func_array( char *fav[], int fac)
{
char *ret;
if( atoierr ) return 20;
if( fac ) {
ret=compile_av( fav, 0, fac, 0xa0, 0);
set_var( LEVEL_SET, v_value, ret );
free( ret );
} else
unset_var( LEVEL_SET, v_value );
return 0;
}
static int
func_int( int i )
{
char buf[12];
if( atoierr ) return 20;
sprintf(buf,"%d",i);
set_var( LEVEL_SET, v_value, buf );
return 0;
}
static int
func_bool( int i )
{
if( atoierr ) return 20;
set_var( LEVEL_SET, v_value, i ? "1" : "0" );
return 0;
}
static int
func_string( char *str )
{
if( atoierr ) return 20;
set_var( LEVEL_SET, v_value, str ? str : "" );
return 0;
}
static int
commas( char *av[], int ac, int n )
{
int i=0;
while( --ac>=0 )
if( !strcmp( *av++, ",") )
i++;
if( i-=n )
fprintf( stderr, "Need %d comma%s\n", n, (n==1) ? "" : "s" );
return i;
}
extern char **without(), **and(), **or();
static int
wordset( char *av[], int ac, char **(*func)(char **,int,char**,int,int*,int) )
{
char **av1=av, **av2;
int ac1=0, ac2, ret;
if( commas( av, ac, 1 ) ) return 20;
while( strcmp( *av++, ",") ) ac1++;
av2=av, ac2=ac-ac1-1;
av=(*func)( av1, ac1, av2, ac2, &ac, 0 );
ret=func_array( av, ac );
free( av );
return ret;
}
static int
split_arg( char **av, int ac )
{
char **arr, **old, *arg;
int i, j=1, ret;
for( i=strlen(av[0])-1; i>=0; i-- )
if( av[0][i]==' ' )
av[0][i]=0, j++;
arr=old=(char **)malloc( j*sizeof( char * ) );
arg=*av;
for( ; j>0; j-- ) {
*arr++=arg;
arg+=strlen(arg)+1;
}
ret=func_array( old, arr-old );
free(old);
return ret;
}
static char *
info_part( char **av, int ac, int n, char *buf )
{
char *str;
struct DPTR *dp;
int len=0, i, t;
buf[0]=0;
while( --ac>=0 ) {
if( dp=dopen( av[0], &t) ) {
if( n==0 ) {
for (str=buf, i=7; i>=0; i--)
*str++= (dp->fib->fib_Protection & (1L<<i) ?
"hspa----" : "----rwed")[7-i];
*str=0;
} else len+= dp->fib->fib_NumBlocks+1;
dclose( dp );
}
}
if( n ) sprintf(buf, "%d", len);
return buf;
}
static struct FileRequester freq;
static char *
file_request(char **av, int ac, char *path)
{
struct FileRequester fr;
char filebuf[128];
path[0]=0; filebuf[0]=0;
fr=freq; /* clear everything */
fr.fr_Hail="";
if( ac>0 ) {
fr.fr_Hail=av[0];
if( ac>1 ) {
strcpy( path,av[1]);
if( ac>2 )
strcpy(filebuf,av[2]);
}
}
fr.fr_File = filebuf;
fr.fr_Dir = path;
fr.fr_Flags2= FR2F_LongPath;
if( !FileRequest( &fr ) )
return NULL;
TackOn( path,filebuf );
return path;
}
int
confirm( char *title, char *file )
{
char buf[80];
buf[0]=0;
if( !confirmed ) {
fprintf(stderr,"%s %s%-16s%s [YES/no/all/done] ? ",
title,o_hilite,file,o_lolite);
strupr(fgets(buf,80,stdin));
if( *buf=='A' )
confirmed=1;
if( *buf=='D' || breakcheck() )
confirmed=2;
}
if( confirmed==2 )
return 0;
return confirmed || *buf != 'N';
}
enum funcid {
FN_STUB=1, FN_MEMBER, FN_DIRS, FN_NAMEEXT, FN_NAMEROOT, FN_FILES,
FN_FILELEN, FN_SORTARGS, FN_UPPER, FN_WORDS, FN_ABBREV, FN_ABS,
FN_BINTODEC, FN_CENTER, FN_COMPARE, FN_DECTOHEX, FN_DELWORD,
FN_DELWORDS, FN_EXISTS, FN_INDEX, FN_STRCMP, FN_SUBWORDS,
FN_WORD, FN_MIN, FN_MAX, FN_DRIVES, FN_WITHOUT, FN_UNION, FN_INTERSECT,
FN_AVAILMEM, FN_UNIQUE, FN_RPN, FN_CONCAT, FN_SPLIT, FN_DRIVE,
FN_FILEPROT, FN_FILEBLKS, FN_LOWER, FN_HOWMANY, FN_COMPLETE, FN_FIRST,
FN_LAST, FN_MATCH, FN_CLINUM, FN_FREEBYTES, FN_FREEBLKS, FN_INFO,
FN_MEGS, FN_FREESTORE, FN_CHECKPORT, FN_PICKOPTS, FN_PICKARGS,
FN_FILEREQ, FN_VOLUME, FN_LOOKFOR, FN_APPSUFF, FN_PATHNAME, FN_AGE,
FN_GETCLASS, FN_CONFIRM, FN_WINWIDTH, FN_WINHEIGHT, FN_WINTOP,
FN_WINLEFT
};
struct FUNCTION {
short id, minargs, maxargs;
char *name;
} Function[]={
FN_ABBREV, 2, 3, "abbrev",
FN_ABS, 1, 1, "abs",
FN_AGE, 1, 1, "age",
FN_APPSUFF, 2, 2, "appsuff",
FN_AVAILMEM, 0, 1, "availmem",
FN_STUB, 1, 1, "basename",
FN_CENTER, 2, 2, "center",
FN_CHECKPORT,1, 1, "checkport",
FN_CLINUM, 1, 1, "clinum",
FN_COMPLETE, 1, MAXAV, "complete",
FN_CONCAT, 0, MAXAV, "concat",
FN_CONFIRM, 1, MAXAV, "confirm",
FN_DECTOHEX, 1, 1, "dectohex",
FN_DELWORD, 1, MAXAV, "delword",
FN_DELWORDS, 2, MAXAV, "delwords",
FN_DIRS, 0, MAXAV, "dirs",
FN_DRIVE, 1, 1, "drive",
FN_DRIVES, 0, 0, "drives",
FN_EXISTS, 1, 1, "exists",
FN_FILEBLKS, 1, MAXAV, "fileblks",
FN_FILELEN, 0, MAXAV, "filelen",
FN_FILEPROT, 1, 1, "fileprot",
FN_FILEREQ, 0, 3, "filereq",
FN_FILES, 0, MAXAV, "files",
FN_FREEBLKS, 1, 1, "freeblks",
FN_FREEBYTES,1, 1, "freebytes",
FN_FREESTORE,1, 1, "freestore",
FN_FIRST, 0, MAXAV, "first",
FN_STUB, 1, 1, "getenv",
FN_GETCLASS, 1, 1, "getclass",
FN_HOWMANY, 0, 0, "howmany",
FN_INDEX, 2, 2, "index",
FN_INFO, 1, 1, "info",
FN_INTERSECT,1, MAXAV, "intersect",
FN_LAST, 0, MAXAV, "last",
FN_LOOKFOR, 2, 2, "lookfor",
FN_LOWER, 0, MAXAV, "lower",
FN_MATCH, 1, MAXAV, "match",
FN_MAX, 1, MAXAV, "max",
FN_MEGS, 1, 1, "megs",
FN_MEMBER, 1, MAXAV, "member",
FN_MIN, 1, MAXAV, "min",
FN_NAMEEXT, 1, 1, "nameext",
FN_NAMEROOT, 1, 1, "nameroot",
FN_PATHNAME, 1, 1, "pathname",
FN_PICKARGS, 0, MAXAV, "pickargs",
FN_PICKOPTS, 0, MAXAV, "pickopts",
FN_RPN, 1, MAXAV, "rpn",
FN_SORTARGS, 0, MAXAV, "sortargs",
FN_SPLIT, 0, MAXAV, "split",
FN_STRCMP, 2, 2, "strcmp",
FN_STUB, 2, 2, "strhead",
FN_STUB, 2, 2, "strleft",
FN_STUB, 2, 3, "strmid",
FN_STUB, 2, 2, "strright",
FN_STUB, 2, 2, "strtail",
FN_SUBWORDS, 2, MAXAV, "subwords",
FN_STUB, 2, 2, "tackon",
FN_UNION, 1, MAXAV, "union",
FN_UNIQUE, 0, MAXAV, "unique",
FN_UPPER, 0, MAXAV, "upper",
FN_VOLUME, 1, 1, "volume",
FN_WINHEIGHT,0, 0, "winheight",
FN_WINLEFT, 0, 0, "winleft",
FN_WINTOP, 0, 0, "wintop",
FN_WINWIDTH, 0, 0, "winwidth",
FN_WITHOUT, 1, MAXAV, "without",
FN_WORD, 1, MAXAV, "word",
FN_WORDS, 0, MAXAV, "words",
0, 0, NULL
};
extern char shellctr[];
char *strstr(), *rindex();
int
dofunc( int id, char **av, int ac)
{
char **oldav=av, **get=av, buf[200], *str=buf;
int oldac=ac, i=0, j=0, n=0, n2=1, l;
buf[0]=0;
av[ac]=NULL;
switch( id ) {
case FN_ABBREV:
if( ac==3 ) i=posatoi(av[2] ); else i=strlen(av[0]);
return func_bool( !Strncmp( av[0], av[1], i ));
case FN_ABS:
i=unlatoi(av[0]);
return func_int( i>= 0 ? i : -i );
case FN_AGE: {
struct DateStamp ds; long time;
DateStamp( &ds ); if( ds.ds_Days==0 ) return 99999;
if( !(time=timeof(av[0]))) return 99999;
return func_int( (ds.ds_Days*86400+ds.ds_Minute*60-time)/86400 ); }
case FN_APPSUFF:
strcpy(buf,av[0]);
l=strlen(av[0])-strlen(av[1]);
if( l<0 || Strcmp(av[0]+l,av[1])) {
strcat(buf,".");
strcat(buf,av[1]);
}
return func_string( buf );
case FN_AVAILMEM:
if( ac==1 && !Strcmp(av[0],"chip")) n=MEMF_CHIP;
if( ac==1 && !Strcmp(av[0],"fast")) n=MEMF_FAST;
return func_int( AvailMem( n ));
case FN_CENTER:
if( (n=posatoi( av[1] )) > (l=strlen(av[0])) ) i=(n-l)/2, j=n-i-l;
sprintf( buf, "%*s%s%*s", i,"",av[0], j,"" );
return func_string( buf );
case FN_CHECKPORT:
return func_bool( (int)FindPort( av[0] ) );
case FN_GETCLASS:
if( str=getclass(av[0]) )
if( str=index(strncpy( buf,str,100 ),0xA0) )
*str=0;
return func_string(buf);
case FN_COMPLETE:
for( i=1, l=strlen(av[0]); i<ac; i++ )
if( !Strncmp( av[0], av[i], l ) )
{ str=av[i]; break; }
return func_string( str );
case FN_CONCAT:
return func_string( compile_av( av, 0, ac, ' ', 1));
case FN_CONFIRM:
for( i=1, get++, confirmed=0; i<ac; i++ )
if( confirm( av[0], av[i]) )
*get++=av[i];
return func_array( av+1, (get-av)-1 );
case FN_DECTOHEX:
sprintf( buf, "%x", unlatoi( av[0] ));
return func_string( buf );
case FN_DELWORDS:
n2=posatoi( av[--ac] ); if( atoierr ) return 20;
case FN_DELWORD:
n=posatoi( av[--ac] )-1;
for( ; i<ac && i<n; i++ ) *av++=*get++;
for( ; i<ac && i<n+n2; i++ ) get++;
for( ; i<ac ; i++ ) *av++=*get++;
return func_array( oldav, av-oldav );
case FN_DIRS:
for( ; --ac>=0; get++ )
if( exists( *get ) && isdir( *get ) )
*av++=*get;
return func_array( oldav, av-oldav );
case FN_DRIVE:
return func_string( drive_name( av[0] ) );
case FN_DRIVES:
get_drives( buf );
return func_string( buf );
case FN_EXISTS:
return func_bool( exists( av[0] ));
case FN_FILEBLKS:
return func_string( info_part( av, ac, 1, buf ) );
case FN_FILELEN:
while( --ac>=0 )
i+=filesize( *av++ );
return func_int( i );
case FN_FILEPROT:
return func_string( info_part( av, ac, 0, buf ) );
case FN_FILEREQ:
return func_string( file_request( av, ac, buf ) );
case FN_FILES:
for( ; --ac>=0; get++ )
if( exists( *get ) && !isdir( *get ) )
*av++=*get;
return func_array( oldav, av-oldav );
case FN_FIRST:
return func_string( av[0] );
case FN_FREEBLKS:
return func_string( oneinfo( av[0], 3 ));
case FN_FREEBYTES:
return func_string( oneinfo( av[0], 2 ));
case FN_FREESTORE:
return func_string( oneinfo( av[0], 4 ));
case FN_HOWMANY:
Getenv( shellctr, buf, 10);
return func_string( buf );
case FN_INDEX:
str=strstr( av[0], av[1] );
return func_int( str ? (str-av[0])+1 : 0 );
case FN_INFO:
return func_string( oneinfo( av[0], 1 ));
case FN_INTERSECT:
return wordset( av, ac, and );
case FN_LAST:
return func_string( ac ? av[ac-1] : "" );
case FN_LOOKFOR:
return func_string( dofind( av[0], "", buf, av[1]));
case FN_LOWER:
while( --ac>=0 ) strlwr( *av++ );
return func_array( oldav, av-oldav );
case FN_MATCH:
for( str=av[--ac]; --ac>=0; get++ )
if( compare_ok( str, *get, 0 ) )
*av++=*get;
return func_array( oldav, av-oldav );
case FN_MAX:
for( n=MININT; i<ac; i++ )
{ if( (j=unlatoi(av[i] )) > n ) n=j; if( atoierr ) return 20; }
return func_int( n );
case FN_MEGS:
return func_string( itok( atoi( av[0] )));
case FN_MEMBER:
for( i=1; i<ac && Strcmp(av[0],av[i]) ; i++ ) ;
return func_bool( ac!=i );
case FN_MIN:
for( n=MAXINT; i<ac; i++ )
{ if( (j=unlatoi(av[i] )) < n ) n=j; if( atoierr ) return 20; }
return func_int( n );
case FN_NAMEEXT:
return func_string( rindex(av[0],'.') ? rindex(av[0],'.')+1 : NULL);
case FN_NAMEROOT:
if( rindex(av[0],'.') ) *rindex(av[0],'.')=0;
return func_string( av[0] );
case FN_PATHNAME:
str=av[0]+strlen(av[0])-1;
while( str>av[0] && *str!=':' && *str!='/' ) str--;
if( *str==':' ) str++;
*str=0;
return func_string(av[0]);
case FN_PICKARGS:
for( ; *get ; get++ )
if( **get!='-' )
*av++=*get;
return func_array( oldav, av-oldav );
case FN_PICKOPTS:
for( ; *get ; get++ )
if( **get=='-' )
*av++=*get;
return func_array( oldav, av-oldav );
case FN_CLINUM:
return func_int( clinum( av[0] ) );
case FN_RPN:
return func_int( eval_rpn( av, ac, 1 ));
case FN_SORTARGS:
QuickSort( av, ac );
return func_array( av, ac );
case FN_SPLIT:
return split_arg( av, ac );
case FN_STRCMP:
return func_int( strcmp( av[0], av[1] ) );
case FN_UNION:
return wordset( av, ac, or );
case FN_UNIQUE:
QuickSort( av, ac );
while( *get )
{ *av++=*get++; while( *get && !Strcmp(*get,*(get-1)))
get++; }
return func_array( oldav, av-oldav );
case FN_UPPER:
while( --ac>=0 ) strupr( *av++ );
return func_array( oldav, oldac );
case FN_VOLUME:
return func_string( oneinfo( av[0], 5 ));
case FN_WINTOP:
return func_int( Win ? Win->TopEdge : 0 );
case FN_WINLEFT:
return func_int( Win ? Win->LeftEdge: 0 );
case FN_WINHEIGHT:
return func_int( Win ? Win->Height : 0 );
case FN_WINWIDTH:
return func_int( Win ? Win->Width : 0 );
case FN_WORD:
n2=1; goto wordf;
case FN_SUBWORDS:
n2=posatoi( av[--ac] ); if( atoierr ) return 20;
wordf:
n=posatoi( av[--ac] )-1; if( atoierr ) return 20;
for( i=0; i<ac && i<n; i++ ) get++;
for( ; i<ac && i<n+n2; i++ ) *av++=*get++;;
return func_array( oldav, av-oldav );
case FN_WITHOUT:
return wordset( av, ac, without );
case FN_WORDS:
return func_int( ac );
}
return func_string( "" );
}