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unixcall.c
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/****************************************************************/
/* unixcall.c
/* 1986-Jul-6 original for Ustation
/* 1986-Dec process id's, file changes, syserrlist
/* 1987-Feb dup,isatty
/* 1987-Apr getwd,stat,time
/* 1988-Jan,Feb socket, select
/* 1988-Dec ioctl
/* 1990-Mar VxWorks
/* Copyright(c) 1988 MATSUI Toshihiro, Electrotechnical Laboratory.
/* 2015 WRITE accepts offset as the third argument
/****************************************************************/
static char *rcsid="@(#)$Id: unixcall.c,v 1.1.1.1 2016/06/26 06:57:53 toshihiro Exp $";
/* SunOS's gettimeofday used to accept only one argument.
#ifdef Solaris2
#define _SVID_GETTOD
#endif
*/
#include "eus.h"
#if vxworks
#define NSIG NUM_SIGNALS
#define SIG_DFL 0
#include <sigLib.h>
#include <socket.h>
#include <in.h>
#else
#include <sys/types.h>
#include <sys/times.h>
#include <sys/stat.h>
#include <signal.h>
#include <sys/ioctl.h>
#include <time.h>
#include <sys/time.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <netinet/in.h>
#include <netdb.h>
#include <sys/mman.h>
#include <string.h>
#include <unistd.h> /* for lseek */
#endif
/*SONY/news doesn't have message queu ipc facilities*/
#if !vxworks
#include <sys/ipc.h>
#include <sys/msg.h>
#endif
#if SunOS4_1 || (mips && !IRIX && !IRIX6)
/* Sun likes to change ioccom constants frequently. */
#define IOC_VOID _IOC_VOID
#define IOC_IN _IOC_IN
#define IOC_OUT _IOC_OUT
#define IOC_INOUT _IOC_INOUT
#endif
#if Linux
#define IOC_VOID 0
#endif
#if Solaris2 || Linux || alpha || Cygwin
#include <errno.h>
#include <dirent.h>
#else
extern int errno;
#endif
#if Linux
#define IOC_VOID 0
#endif
#if alpha
#include <sys/utsname.h>
#include <sys/types.h>
#include <sys/ipc.h>
#include <sys/msg.h>
#endif
#if system5 || Linux || Cygwin
#include <sys/utsname.h>
#endif
#include <time.h>
//extern char *tzname[2];
#if !Cygwin /* extern timezone */
extern time_t timezone, altzone; /*long*/
#endif
extern int daylight;
extern pointer eussigvec[NSIG];
extern eusinteger_t coerceintval(pointer);
/***************** times and status *****************/
#if !vxworks
pointer PTIMES(ctx,n,argv)
register context *ctx;
int n;
pointer argv[];
{ struct tms buffer;
register pointer t;
long et;
ckarg(0);
GC_REGION(et=times(&buffer););
t=cons(ctx,makeint(buffer.tms_cstime),NIL);
t=cons(ctx,makeint(buffer.tms_cutime),t);
t=cons(ctx,makeint(buffer.tms_stime),t);
t=cons(ctx,makeint(buffer.tms_utime),t);
t=cons(ctx,mkbigint(et),t);
return(t);}
pointer RUNTIME(ctx,n,argv)
register context *ctx;
int n;
pointer argv[];
{ struct tms buffer;
ckarg(0);
GC_REGION(times(&buffer););
return(makeint(buffer.tms_utime+buffer.tms_stime));}
pointer LOCALTIME(ctx,n,argv)
register context *ctx;
pointer argv[];
{ long clock;
struct tm *tms;
pointer timevec;
pointer *tv;
pointer tz0, tz1, tz;
struct tm res;
if (n==1) clock=coerceintval(argv[0]);
else clock=time(0);
tms=localtime_r((time_t *)&clock,&res); /* localtime-->localtime_r */
timevec=makevector(C_VECTOR,10);
vpush(timevec);
#ifdef Cygwin
if (getenv("TZ")==NULL) {
tzname[0]="UTC";
tzname[1]="UTC";
}
#endif
tz0=makestring(tzname[0],strlen(tzname[0]));
vpush(tz0);
tz1=makestring(tzname[1],strlen(tzname[1]));
vpush(tz1);
tz=cons(ctx, tz1, NIL);
tz=cons(ctx, tz0, tz);
tv=timevec->c.vec.v;
tv[0]=makeint(tms->tm_sec);
tv[1]=makeint(tms->tm_min);
tv[2]=makeint(tms->tm_hour);
tv[3]=makeint(tms->tm_mday);
tv[4]=makeint(tms->tm_mon);
tv[5]=makeint(tms->tm_year);
tv[6]=makeint(tms->tm_wday);
tv[7]=makeint(tms->tm_yday);
tv[8]=(tms->tm_isdst>0)?T:NIL;
tv[9]=tz;
vpop(); vpop(); vpop();
return(timevec);}
pointer ASCTIME(ctx,n,argv)
register context *ctx;
int n;
register pointer argv[];
{ char *atp;
struct tm tms1, *tms;
pointer a=argv[0];
int i;
#define ASCTIME_STRLEN 30 /* at lease 26 chars */
char at[ASCTIME_STRLEN];
ckarg(1);
if (isintvector(argv[0])) tms=(struct tm *)a->c.ivec.iv;
else if (isvector(a)) {
tms1.tm_sec=ckintval(a->c.vec.v[0]);
tms1.tm_min=ckintval(a->c.vec.v[1]);
tms1.tm_hour=ckintval(a->c.vec.v[2]);
tms1.tm_mday=ckintval(a->c.vec.v[3]);
tms1.tm_mon=ckintval(a->c.vec.v[4]);
tms1.tm_year=ckintval(a->c.vec.v[5]);
tms1.tm_wday=ckintval(a->c.vec.v[6]);
/* tms1.tm_yday=ckintval(a->c.vec.v[7]); */
tms1.tm_isdst=(a->c.vec.v[8]==NIL)?0:1;
tms= &tms1; }
else error(E_NOINTVECTOR);
#if defined(__USE_POSIX) || Cygwin || Linux
atp=asctime_r(tms,at); /* asctime --> asctime_r */
#else
atp=asctime_r(tms,at,ASCTIME_STRLEN); /* asctime --> asctime_r */
#endif
return(makestring(atp,strlen(atp)));}
#if !Solaris2
#include <sys/resource.h>
pointer GETRUSAGE(ctx,n,argv)
register context *ctx;
int n; pointer argv[];
{ register int who,i;
long rusage[18];
eusfloat_t utime,stime;
register pointer r=NIL;
numunion nu;
ckarg(1); who=ckintval(argv[0]);
getrusage(who,(struct rusage *)rusage);
utime=rusage[0]+rusage[1]*1.0e-6;
stime=rusage[2]+rusage[3]*1.0e-6;
for (i=17; i>=4; i--) r=cons(ctx,makeint(rusage[i]),r);
r=cons(ctx,makeflt(stime),r); r=cons(ctx,makeflt(utime),r);
/*(utime stime maxrss ixrss idrss isrss page-reclaims page-faults swap
inblock outblock msgsnd msgrcv nsignals
voluntary-context-switch involuntary-context-switch) */
return(r);}
pointer GETPAGESIZE(ctx,n,argv)
register context *ctx;
int n; pointer argv[];
{ ckarg(0);
return(makeint(getpagesize())); }
#endif
pointer GETTIMEOFDAY(ctx,n,argv)
register context *ctx;
int n;
register pointer argv[];
{ struct timeval /*{long tv_sec, tv_usec;}*/ tm;
eusfloat_t ftime;
pointer p;
/* (sec usec timezone daylight) */
/* timezone is seconds west to the GMT */
gettimeofday(&tm, 0);
p=cons(ctx, makeint(daylight), NIL);
p=cons(ctx, makeint(timezone),p);
p=cons(ctx, makeint(tm.tv_usec), p);
vpush(p);
p=cons(ctx, mkbigint(tm.tv_sec), p);
vpop();
return(p);}
pointer GETITIMER(ctx,n,argv)
register context *ctx;
int n;
register pointer argv[];
{ int stat;
struct itimerval tmval;
eusfloat_t interval,value;
numunion nu;
ckarg(1);
stat=getitimer(ckintval(argv[0]), &tmval);
if (stat<0) return(NIL);
interval=tmval.it_interval.tv_sec + ( tmval.it_interval.tv_usec*1.0E-6);
value=tmval.it_value.tv_sec + (tmval.it_value.tv_usec*1.0E-6);
return(cons(ctx,makeflt(value),
cons(ctx,makeflt(interval),NIL)));}
pointer SETITIMER(ctx,n,argv)
register context *ctx;
int n;
register pointer argv[];
{ int stat;
pointer result=NIL;
struct itimerval tmval,oldtmval;
eusfloat_t interval,value;
numunion nu;
ckarg(3);
value=ckfltval(argv[1]); interval=ckfltval(argv[2]);
tmval.it_value.tv_sec=value;
tmval.it_value.tv_usec=(value-tmval.it_value.tv_sec)*1.0E6;
tmval.it_interval.tv_sec=interval;
tmval.it_interval.tv_usec=(interval-tmval.it_interval.tv_sec)*1.0E6;
stat=setitimer(ckintval(argv[0]), &tmval, &oldtmval);
if (stat<0) return(result);
interval=oldtmval.it_interval.tv_sec + (oldtmval.it_interval.tv_usec*1.0E-6);
value=oldtmval.it_value.tv_sec + (oldtmval.it_value.tv_usec*1.0E-6);
return(cons(ctx,makeflt(interval),
cons(ctx,makeflt(value),result)));}
#endif /* ! vxworks */
/****************************************************************/
/* signal handling
/****************************************************************/
#ifdef SIGADDSET
#undef SIGADDSET
#endif
#ifdef SIGDELSET
#undef SIGDELSET
#endif
pointer SIGADDSET(ctx,n,argv)
register context *ctx;
int n;
register pointer argv[];
{ int signum;
sigset_t *set;
ckarg(2);
signum=ckintval(argv[1]);
if (isvector(argv[0]) &&
((elmtypeof(argv[0])==ELM_INT) || (elmtypeof(argv[0])==ELM_BIT))) {
set=(sigset_t *)argv[0]->c.ivec.iv;
sigaddset(set, signum);
return(argv[0]);}
else error(E_USER,(pointer)"integer/bit vector expected for sigaddset");
}
pointer SIGDELSET(ctx,n,argv)
register context *ctx;
int n;
register pointer argv[];
{ int signum;
sigset_t *set;
ckarg(2);
signum=ckintval(argv[1]);
if (isvector(argv[0]) &&
((elmtypeof(argv[0])==ELM_INT) || (elmtypeof(argv[0])==ELM_BIT))) {
set=(sigset_t *)argv[0]->c.ivec.iv;
sigdelset(set, signum);
return(argv[0]);}
else error(E_USER,(pointer)"integer/bit vector expected for sigaddset");
}
pointer SIGPROCMASK(ctx,n,argv)
context *ctx;
int n;
pointer argv[];
{ sigset_t *set, *oset;
int how, stat;
ckarg2(2,3);
how=ckintval(argv[0]);
if (isvector(argv[1]) &&
((elmtypeof(argv[1])==ELM_INT) || (elmtypeof(argv[1])==ELM_BIT))) {
set=(sigset_t *)argv[1]->c.ivec.iv;
if (isvector(argv[2]) &&
((elmtypeof(argv[2])==ELM_INT) || (elmtypeof(argv[2])==ELM_BIT)))
oset=(sigset_t *)argv[2]->c.ivec.iv;
else oset=(sigset_t *)0;
stat=sigprocmask(how, set, oset);
if (stat==0) return(T); else return(makeint(-errno));
}
else error(E_USER,(pointer)"integer/bit vector expected for sigprocmask");
}
pointer KILL(ctx,n,argv)
register context *ctx;
int n;
register pointer argv[];
{ ckarg(2);
return(makeint(kill(ckintval(argv[0]),ckintval(argv[1]))));}
#if Solaris2 || Linux || IRIX || IRIX6 || Cygwin
pointer SIGNAL(ctx,n,argv)
register context *ctx;
int n;
pointer argv[];
{ register int s,i;eusinteger_t f;
struct sigaction sv;
register pointer a=argv[1],oldval;
extern void eusint();
ckarg2(1,3);
s=min(ckintval(argv[0]),NSIG-1);
oldval=eussigvec[s];
if (n==1) return(oldval);
if (isint(a)) { f=max(1,intval(a)); eussigvec[s]=NIL;}
else { f=(eusinteger_t)eusint; eussigvec[s]=a;}
sv.sa_handler= (void (*)())f;
#if Linux || Cygwin
#if LIB6 && !Darwin
for (i=0; i< _SIGSET_NWORDS; i++) sv.sa_mask.__val[i]=0;
#else
/* old type sigmask */
sv.sa_mask=0;
#endif
/*LIB6*/
#elif (IRIX || IRIX6) && !IRIX6_2
for (i=0; i<4; i++) sv.sa_mask.sigbits[i]=0;
#else
for (i=0; i<4; i++) sv.sa_mask.__sigbits[i]=0;
#endif
if (n==3) sv.sa_flags= ckintval(argv[2]);
else sv.sa_flags=0;
/* printf("signal %d flag=%d\n", s, sv.sa_flags); */
s=sigaction(s,&sv,0);
if (s== -1) return(makeint(-errno)); else return(oldval);
}
#else
pointer SIGNAL(ctx,n,argv)
register context *ctx;
int n;
pointer argv[];
{ register int s;eusinteger_t f;
struct sigvec sv;
register pointer a=argv[1],oldval;
extern void eusint();
ckarg2(1,3);
s=min(ckintval(argv[0]),NSIG-1);
oldval=eussigvec[s];
if (n==1) return(oldval);
if (isint(a)) { f=max(1,intval(a)); eussigvec[s]=NIL;}
else { f=(eusinteger_t)eusint; eussigvec[s]=a;}/* ???? */
sv.sv_handler=(void (*)())f;
sv.sv_mask=0; /*sigmask(s)???;*/
/*news doesn't have system5 compatible signal handling option*/
#if sun3 || sun4 || mips || alpha
if (n==3) sv.sv_flags=ckintval(argv[2]);
else sv.sv_flags=0;
#endif
s=sigvec(s,&sv,0);
if (s== -1) return(makeint(-errno)); else return(oldval);
}
#endif
#if !vxworks
#include <sys/wait.h>
pointer WAIT(ctx,n,argv)
register context *ctx;
int n;
pointer argv[];
{ int completion=0, stat;
GC_REGION(stat = wait(&completion););
return(cons(ctx,makeint(stat),
cons(ctx,makeint(completion),NIL)));}
pointer ALARM(ctx,n,argv)
register context *ctx;
int n; pointer argv[];
{ ckarg(1);
return(makeint(alarm(ckintval(argv[0]))));}
#if sun3 || sun4 || news || sanyo || alpha || i386 || x86_64 || ARM
#if !Solaris2
pointer UALARM(ctx,n,argv)
register context *ctx;
int n; pointer argv[];
{ ckarg(2);
return(makeint(ualarm(ckintval(argv[0]), ckintval(argv[1]))));}
#endif
#endif
#endif /*!vxworks*/
/**********************************************/
/* process, user, and group identification
/**********************************************/
pointer GETPID(ctx,n,argv)
register context *ctx;
int n;
pointer *argv; /* unused argument */
{ ckarg(0);
return(makeint(getpid()));}
#if !vxworks
pointer GETPPID(ctx,n,argv)
register context *ctx;
int n;
pointer argv[];
{ ckarg(0);
return(makeint(getppid()));}
pointer GETPGRP(ctx,n,argv)
register context *ctx;
int n;
pointer argv[];
#if system5 | Linux | Cygwin
{ ckarg(0);
return(makeint(getpgrp()));}
#else
{ int pid;
if (n==1) pid=ckintval(argv[0]);
else pid=getpid();
return(makeint(getpgrp(pid)));}
#endif
pointer SETPGRP(context *ctx, int n, pointer *argv)
#if system5 | Linux | Cygwin
{ ckarg(0);
return(makeint(setpgrp()));}
#else
{ int pid;
ckarg(2);
return(makeint(setpgrp(ckintval(argv[0]),ckintval(argv[1]))));}
#endif
pointer GETUID(context *ctx, int n, pointer *argv)
{ ckarg(0);
return(makeint(getuid()));}
pointer GETEUID(ctx,n,argv)
register context *ctx;
int n;
pointer argv[];
{ ckarg(0);
return(makeint(geteuid()));}
pointer GETGID(ctx,n,argv)
register context *ctx;
int n;
pointer argv[];
{ ckarg(0);
return(makeint(getgid()));}
pointer GETEGID(ctx,n,argv)
register context *ctx;
int n;
pointer argv[];
{ ckarg(0);
return(makeint(getegid()));}
pointer SETUID(ctx,n,argv)
register context *ctx;
int n;
pointer argv[];
{ ckarg(1);
n=setuid(ckintval(argv[0]));
if (n<0) return(makeint(errno)); else return(T);}
pointer SETGID(ctx,n,argv)
register context *ctx;
int n;
pointer argv[];
{ ckarg(1);
n=setgid(ckintval(argv[0]));
if (n<0) return(makeint(errno)); else return(T);}
#endif /*!vxworks*/
#if system5 || Linux || Cygwin
pointer UNAME(ctx,n,argv)
register context *ctx;
int n;
pointer *argv;
{ struct utsname u;
pointer s;
ckarg(0);
uname(&u);
vpush(makestring(u.sysname,strlen(u.sysname)));
vpush(makestring(u.nodename,strlen(u.nodename)));
vpush(makestring(u.release,strlen(u.release)));
vpush(makestring(u.version,strlen(u.version)));
vpush(makestring(u.machine,strlen(u.machine)));
s=stacknlist(ctx,5);
return(s);}
#endif
/****************************************************************/
/* process creation and deletion
/****************************************************************/
#if !vxworks
#if !Solaris2 || !THREADED
pointer FORK(ctx,n,argv)
register context *ctx;
int n;
pointer *argv;
{ ckarg(0);
return(makeint(fork()));
}
#else
/* for the problem of calling fork(2) in MT *
* Jan. 10 2003 by [email protected] */
static int ctxid_in_child;
static void *prepare(void) {
int i, me=thr_self();
/* preserve current context */
ctxid_in_child=me;
/* suspend all threads except self */
for (i=0; i<MAXTHREAD; i++) {
if (euscontexts[i]!=0 && i!=me &&
euscontexts[i]->threadobj->c.thrp.suspend==NIL) {
thr_suspend(i);
euscontexts[i]->threadobj->c.thrp.suspend=T; } }
}
static void *parent(void) {
/* continue all suspended threads */
int i, me=thr_self();
for (i=0; i<MAXTHREAD; i++) {
if (euscontexts[i]!=0 && i!=me) {
euscontexts[i]->threadobj->c.thrp.suspend=NIL;
thr_continue(i); } }
}
static void *child(void) {
/* do not continue suspended threads */
int me=thr_self();
/* copy current context (tid changed in child) */
euscontexts[me] = euscontexts[ctxid_in_child];
}
pointer FORK(register context *ctx, int n, pointer *argv)
{ckarg(0);
pthread_atfork (prepare, parent, child);
return(makeint(fork()));
}
#endif /* endof Solaris || THREADED */
#if Solaris2
pointer FORK1(ctx,n,argv)
register context *ctx;
int n;
pointer *argv;
{ ckarg(0);
return(makeint(fork1()));
}
#endif
#if sun3 || sun4 || vax || news || sanyo || (mips && !IRIX && !IRIX6) || i386 || alpha || x86_64 || ARM
pointer VFORK(ctx,n,argv)
register context *ctx;
int n;
pointer *argv;
{ ckarg(0);
return(makeint(vfork()));}
#endif
pointer EXEC(ctx,n,argv)
register context *ctx;
int n;
pointer *argv;
{ byte *exeargv[512];
int i=0,stat;
if (n>512) error(E_MISMATCHARG);
while (i<n) {
exeargv[i]=Getstring(argv[i])->c.str.chars;
i++;}
exeargv[i]=0;
stat=execvp(exeargv[0],(char **)exeargv);
return(makeint(-errno));}
#if !Solaris2
static pointer SETPRIORITY(ctx,n,argv)
register context *ctx;
int n;
pointer *argv;
/* (SETPRIORITY which who priority)
which 0:process, 1:process-group, 2:user
who 0:self, others pid, pgrp-id user-id */
{ ckarg(3);
return(makeint(setpriority(ckintval(argv[0]),
ckintval(argv[1]),
ckintval(argv[2]))));}
static pointer GETPRIORITY(ctx,n,argv)
register context *ctx;
int n;
pointer *argv;
/* (GETPRIORITY which who) */
{ ckarg(2);
return(makeint(getpriority(ckintval(argv[0]), ckintval(argv[1]))));}
#endif /*!Solaris2*/
#endif /*!vxworks*/
pointer EXIT(ctx,n,argv)
register context *ctx;
int n;
pointer *argv;
{ pointer exithook=speval(QEXITHOOK);
/*
Exit function can not finish threads which create in Euslisp
on SunOS 4.1. So we use thr_exit function on SunOS 4.1.
*/
#if SunOS4_1 /* changed by H.Nakagaki at 28-Jun-1995 */
if (n==0) thr_exit(0);
else thr_exit(ckintval(argv[0]));
#else
if (exithook != NIL) {
ufuncall(ctx,exithook,exithook,(pointer)(ctx->vsp-n),0,n);}
if (n==0) exit(0);
else exit(ckintval(argv[0]));
#endif
}
pointer _EXIT(ctx,n,argv)
register context *ctx;
int n;
pointer *argv;
{ pointer exithook=speval(QEXITHOOK);
if (n==0) _exit(0);
else _exit(ckintval(argv[0]));
}
/****************************************************************/
/* unix raw I/O and file systems
/****************************************************************/
pointer UNIXREAD(ctx,n,argv)
register context *ctx;
int n;
pointer argv[];
/* (unix:read stream [length]) */
/* (unix:read fd buffer [length [offset]]) */
#if (WORD_SIZE == 64)
{ register int fd,offset=0;
register long int size;
#else
{ register int fd,size,offset=0;
#endif
register pointer strm,buf,count;
byte *bufp;
ckarg2(1,4);
strm=argv[0];
if (isiostream(strm)) strm=strm->c.iostream.in;
if (isfilestream(strm)) {
if (strm->c.stream.direction!=K_IN) error(E_IODIRECTION);
if (isint(strm->c.fstream.fname)) error(E_STREAM);
buf=strm->c.fstream.buffer;
bufp=buf->c.str.chars;
fd=intval(strm->c.fstream.fd);
if (n==2) size=min(strlength(buf),ckintval(argv[1]));
else size=strlength(buf);}
else if (isint(strm)) {
fd=intval(strm);
buf=argv[1];
if (isvector(buf) && (elmtypeof(buf)==ELM_FOREIGN))
bufp=buf->c.foreign.chars;
else if (isstring(buf)) bufp=buf->c.str.chars;
else error(E_NOSTRING);
if (n>=3) size=min(strlength(buf),ckintval(argv[2]));
else size=strlength(buf);
if (n==4) offset=ckintval(argv[3]);}
else error(E_STREAM);
GC_REGION(size=read(fd, &bufp[offset],size););
count=makeint(size);
if (isstream(strm)) {
strm->c.stream.count=0; strm->c.stream.tail=count;}
if (size<0) return(makeint(-errno));
else return(count);}
pointer UNIXWRITE(ctx,n,argv)
register context *ctx;
register int n;
pointer *argv;
/* (unix:write fd string [count])
(unix:write stream string [count]) */
{ pointer strm,buf;
int start, size, fd;
byte *bufp;
ckarg2(2,4);
strm=argv[0];
if (isiostream(strm)) strm=strm->c.iostream.out;
if (isfilestream(strm)) {
if (strm->c.stream.direction!=K_OUT) error(E_IODIRECTION);
if (isint(strm->c.fstream.fname)) error(E_STREAM);
fd=intval(strm->c.fstream.fd);}
else if (isint(strm)) fd=intval(strm);
else error(E_STREAM);
buf=argv[1];
if (isvector(buf) && (elmtypeof(buf)==ELM_FOREIGN))
bufp=buf->c.foreign.chars;
else if (isstring(buf)) bufp=buf->c.str.chars;
else error(E_NOSTRING);
// changed to accept offset as the third arg by T. Matsui, 2015
size=strlength(buf);
if (n==2) start=0;
else {
start=ckintval(argv[2]);
if (n==3) size= size-start;
else size=min(size-start, ckintval(argv[3])); }
size=write(fd,bufp+start,size);
return(makeint(size));}
pointer UNIXCLOSE(ctx,n,argv)
register context *ctx;
int n;
pointer argv[];
{ ckarg(1);
if (close(ckintval(argv[0]))==0) return(T); else return(makeint(errno));}
#if !Cygwin /* Cygwin does not have lockf */
pointer LOCKF(ctx,n,argv)
register context *ctx;
int n;
pointer argv[];
{ register pointer a=argv[0];
int fd,func,size,result;
ckarg2(2,3);
if (isiostream(a)) a=a->c.iostream.out;
if (isfilestream(a)) fd=intval(a->c.fstream.fd);
else if (isint(argv[0])) fd=intval(argv[0]);
else error(E_STREAM);
func= ckintval(argv[1]);
if (n==3) size=ckintval(argv[2]);
else size=0;
result=lockf(fd,func,size);
return(makeint(result));}
#endif
#include <fcntl.h>
pointer FCNTL(ctx,n,argv)
register context *ctx;
int n;
pointer argv[];
{ register pointer a=argv[0]; int fd,result;
ckarg(3);
if (isiostream(a)) a=a->c.iostream.in;
if (isfilestream(a)) fd=intval(a->c.fstream.fd);
else if (isint(argv[0])) fd=intval(argv[0]);
else error(E_STREAM);
result=fcntl(fd,ckintval(argv[1]),ckintval(argv[2]));
return(makeint(result));}
pointer IOCTL(ctx,n,argv)
register context *ctx;
int n;
register pointer argv[];
{ register pointer strm;
eusinteger_t ctlarg;
int request;
int fd;
ckarg(3);
strm=argv[0];
if (isiostream(strm)) strm=strm->c.iostream.out;
if (isfilestream(strm)) {
fd=intval(strm->c.fstream.fd);
if (isint(strm->c.fstream.fname)) error(E_STREAM);}
else fd=ckintval(argv[0]);
if (isint(argv[1])) request=ckintval(argv[1]);
else if (isflt(argv[1])) error(E_NOINT);
else request=argv[1]->c.ivec.iv[0];
if (isstring(argv[2])) ctlarg=(eusinteger_t)(argv[2]->c.str.chars);/* ???? */
else ctlarg=ckintval(argv[2]);
return(makeint(ioctl(fd,request,ctlarg)));
}
#if !vxworks && !Solaris2
int bytesize(p)
pointer p;
{ register int s=vecsize(p);
switch (elmtypeof(p)) {
case ELM_BIT: return((s+7)/8);
case ELM_BYTE: case ELM_CHAR: case ELM_FOREIGN: return(s);
case ELM_FLOAT: return(s*sizeof(float));
case ELM_INT: return(s*sizeof(int));
default: return(s*sizeof(pointer));}}
#if Linux_ppc
#define IOC_IN _IOC_READ
#define IOC_OUT _IOC_WRITE
#define IOC_INOUT (IOC_IN | IOC_OUT)
#endif
pointer IOCTL_(ctx,n,argv)
register context *ctx;
/* (UNIX:IOCTL_ stream command1 command2) */
/* equivalent to C's ioctl(dev, _IO(command1, command2), addr) */
int n;
register pointer argv[];
{ register pointer strm;
int size=0,x,y,fd;
eusinteger_t addr;
ckarg(3);
strm=argv[0];
if (isiostream(strm)) strm=strm->c.iostream.out;
if (isfilestream(strm)) fd=intval(strm->c.fstream.fd);
else fd=ckintval(strm);
if (isint(strm->c.fstream.fname)) error(E_STREAM);
x=ckintval(argv[1]); y=ckintval(argv[2]);
#if alpha || Linux_ppc
if (ioctl(fd,_IO(x, y), addr))
#else
if (ioctl(fd,IOC_VOID | (size<<16) | (x<<8) | y, addr))
#endif
return(makeint(-errno));
else return(T); }
pointer IOCTL_R(ctx,n,argv)
register context *ctx;
/* (UNIX:IOCTL_R stream x y buffer [size]) */
/* equivalent to C's ioctl(dev, _IORN(size, x, y), addr) */
int n;
register pointer argv[];
{ register pointer strm;
int size,x,y,fd;
eusinteger_t addr;
ckarg2(4,5);
strm=argv[0];
if (isiostream(strm)) strm=strm->c.iostream.out;
if (isfilestream(strm)) fd=intval(strm->c.fstream.fd);
else fd=ckintval(strm);
if (isint(strm->c.fstream.fname)) error(E_STREAM);
x=ckintval(argv[1]); y=ckintval(argv[2]);
if (isstring(argv[3]) || isintvector(argv[3]))
addr=(eusinteger_t)(argv[3]->c.str.chars);/* ???? */
else error(E_NOSTRING);
if (n==5) size=ckintval(argv[4]);
else size=bytesize(argv[3]);
#if alpha
if (ioctl(fd,_IOC(IOC_OUT, x, y, size), addr))
#else
if (ioctl(fd,IOC_OUT | (size<<16) | (x<<8) | y, addr))
#endif
return(makeint(-errno));
else return(T); }
pointer IOCTL_W(ctx,n,argv)
register context *ctx;
/* (UNIX:IOCTL_W stream x y buffer [size]) */
/* equivalent to C's ioctl(dev, _IOWN(size, x, y), addr) */
int n;
register pointer argv[];
{ register pointer strm;
int size,x,y,fd;
eusinteger_t addr;
ckarg2(4,5);
strm=argv[0];
if (isiostream(strm)) strm=strm->c.iostream.out;
if (isfilestream(strm)) fd=intval(strm->c.fstream.fd);
else fd=ckintval(strm);
if (isint(strm->c.fstream.fname)) error(E_STREAM);
x=ckintval(argv[1]); y=ckintval(argv[2]);
if (isstring(argv[3]) || isintvector(argv[3]))
addr=(eusinteger_t)(argv[3]->c.str.chars);/* ???? */
else error(E_NOSTRING);
if (n==5) size=ckintval(argv[4]);
else size=bytesize(argv[3]);
#if alpha || Linux_ppc
if (ioctl(fd,_IOC(IOC_IN, x, y, size), addr))
#else
if (ioctl(fd,IOC_IN | (size<<16) | (x<<8) | y, addr))
#endif
return(makeint(-errno));
else return(T); }
#if !Cygwin /* Cygwin does not have IOC_INOUT */
pointer IOCTL_WR(ctx,n,argv)
register context *ctx;
/* (UNIX:IOCTL_WR stream x y buffer [size]) */
/* equivalent to C's ioctl(dev, _IOWRN(size, x, y), addr) */
int n;
register pointer argv[];
{ register pointer strm=argv[0];
int size,x,y,fd;
eusinteger_t addr;
ckarg2(4,5);
if (isiostream(strm)) strm=strm->c.iostream.out;
if (isfilestream(strm)) fd=intval(strm->c.fstream.fd);
else fd=ckintval(strm);
if (isint(strm->c.fstream.fname)) error(E_STREAM);
x=ckintval(argv[1]); y=ckintval(argv[2]);
if (isstring(argv[3]) || isintvector(argv[3]))
addr=(eusinteger_t)(argv[3]->c.str.chars);
else error(E_NOSTRING);
if (n==5) size=ckintval(argv[4]);
else size=bytesize(argv[3]);
#if alpha || Linux_ppc
if (ioctl(fd,_IOC(IOC_INOUT, x, y, size), addr))
#else
if (ioctl(fd,IOC_INOUT | (size <<16) | (x<<8) | y, addr))
#endif
return(makeint(-errno)) ;
else return(T); }
#endif /*Cygwin*/
#endif /*vxworks*/
/* DUP and DUP2 work only for numeric fd, not for stream obj.*/
#if !vxworks
pointer DUP(ctx,n,argv)
register context *ctx;
int n;
pointer *argv;
{ int newfd,oldfd;
ckarg(1);
oldfd=ckintval(argv[0]);
newfd=dup(oldfd);
return(makeint(newfd));}
pointer DUP2(ctx,n,argv)
register context *ctx;
int n;
pointer *argv;
{ int newfd,oldfd,stat;
ckarg(2);
newfd=ckintval(argv[0]);