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freebsd/contrib/perl5/pp_sys.c

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/* pp_sys.c
*
* Copyright (c) 1991-1997, Larry Wall
*
* You may distribute under the terms of either the GNU General Public
* License or the Artistic License, as specified in the README file.
*
*/
/*
* But only a short way ahead its floor and the walls on either side were
* cloven by a great fissure, out of which the red glare came, now leaping
* up, now dying down into darkness; and all the while far below there was
* a rumour and a trouble as of great engines throbbing and labouring.
*/
#include "EXTERN.h"
#include "perl.h"
/* XXX If this causes problems, set i_unistd=undef in the hint file. */
#ifdef I_UNISTD
# include <unistd.h>
#endif
#ifdef HAS_SYSCALL
#ifdef __cplusplus
extern "C" int syscall(unsigned long,...);
#endif
#endif
#ifdef I_SYS_WAIT
# include <sys/wait.h>
#endif
#ifdef I_SYS_RESOURCE
# include <sys/resource.h>
#endif
#if defined(HAS_SOCKET) && !defined(VMS) /* VMS handles sockets via vmsish.h */
# include <sys/socket.h>
# ifdef I_NETDB
# include <netdb.h>
# endif
# ifndef ENOTSOCK
# ifdef I_NET_ERRNO
# include <net/errno.h>
# endif
# endif
#endif
#ifdef HAS_SELECT
#ifdef I_SYS_SELECT
#include <sys/select.h>
#endif
#endif
/* XXX Configure test needed.
h_errno might not be a simple 'int', especially for multi-threaded
applications. HOST_NOT_FOUND is typically defined in <netdb.h>.
*/
#if defined(HOST_NOT_FOUND) && !defined(h_errno)
extern int h_errno;
#endif
#ifdef HAS_PASSWD
# ifdef I_PWD
# include <pwd.h>
# else
struct passwd *getpwnam _((char *));
struct passwd *getpwuid _((Uid_t));
# endif
# ifdef HAS_GETPWENT
struct passwd *getpwent _((void));
# endif
#endif
#ifdef HAS_GROUP
# ifdef I_GRP
# include <grp.h>
# else
struct group *getgrnam _((char *));
struct group *getgrgid _((Gid_t));
# endif
# ifdef HAS_GETGRENT
struct group *getgrent _((void));
# endif
#endif
#ifdef I_UTIME
# if defined(_MSC_VER) || defined(__MINGW32__)
# include <sys/utime.h>
# else
# include <utime.h>
# endif
#endif
#ifdef I_FCNTL
#include <fcntl.h>
#endif
#ifdef I_SYS_FILE
#include <sys/file.h>
#endif
/* Put this after #includes because fork and vfork prototypes may conflict. */
#ifndef HAS_VFORK
# define vfork fork
#endif
/* Put this after #includes because <unistd.h> defines _XOPEN_*. */
#ifndef Sock_size_t
# if _XOPEN_VERSION >= 5 || defined(_XOPEN_SOURCE_EXTENDED) || defined(__GLIBC__)
# define Sock_size_t Size_t
# else
# define Sock_size_t int
# endif
#endif
#if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
static int dooneliner _((char *cmd, char *filename));
#endif
#ifdef HAS_CHSIZE
# ifdef my_chsize /* Probably #defined to Perl_my_chsize in embed.h */
# undef my_chsize
# endif
# define my_chsize PerlLIO_chsize
#endif
#ifdef HAS_FLOCK
# define FLOCK flock
#else /* no flock() */
/* fcntl.h might not have been included, even if it exists, because
the current Configure only sets I_FCNTL if it's needed to pick up
the *_OK constants. Make sure it has been included before testing
the fcntl() locking constants. */
# if defined(HAS_FCNTL) && !defined(I_FCNTL)
# include <fcntl.h>
# endif
# if defined(HAS_FCNTL) && defined(F_SETLK) && defined (F_SETLKW)
# define FLOCK fcntl_emulate_flock
# define FCNTL_EMULATE_FLOCK
# else /* no flock() or fcntl(F_SETLK,...) */
# ifdef HAS_LOCKF
# define FLOCK lockf_emulate_flock
# define LOCKF_EMULATE_FLOCK
# endif /* lockf */
# endif /* no flock() or fcntl(F_SETLK,...) */
# ifdef FLOCK
static int FLOCK _((int, int));
/*
* These are the flock() constants. Since this sytems doesn't have
* flock(), the values of the constants are probably not available.
*/
# ifndef LOCK_SH
# define LOCK_SH 1
# endif
# ifndef LOCK_EX
# define LOCK_EX 2
# endif
# ifndef LOCK_NB
# define LOCK_NB 4
# endif
# ifndef LOCK_UN
# define LOCK_UN 8
# endif
# endif /* emulating flock() */
#endif /* no flock() */
#ifndef MAXPATHLEN
# ifdef PATH_MAX
# define MAXPATHLEN PATH_MAX
# else
# define MAXPATHLEN 1024
# endif
#endif
#define ZBTLEN 10
static char zero_but_true[ZBTLEN + 1] = "0 but true";
/* Pushy I/O. */
PP(pp_backtick)
{
djSP; dTARGET;
PerlIO *fp;
char *tmps = POPp;
I32 gimme = GIMME_V;
TAINT_PROPER("``");
fp = PerlProc_popen(tmps, "r");
if (fp) {
if (gimme == G_VOID) {
char tmpbuf[256];
while (PerlIO_read(fp, tmpbuf, sizeof tmpbuf) > 0)
/*SUPPRESS 530*/
;
}
else if (gimme == G_SCALAR) {
sv_setpv(TARG, ""); /* note that this preserves previous buffer */
while (sv_gets(TARG, fp, SvCUR(TARG)) != Nullch)
/*SUPPRESS 530*/
;
XPUSHs(TARG);
SvTAINTED_on(TARG);
}
else {
SV *sv;
for (;;) {
sv = NEWSV(56, 79);
if (sv_gets(sv, fp, 0) == Nullch) {
SvREFCNT_dec(sv);
break;
}
XPUSHs(sv_2mortal(sv));
if (SvLEN(sv) - SvCUR(sv) > 20) {
SvLEN_set(sv, SvCUR(sv)+1);
Renew(SvPVX(sv), SvLEN(sv), char);
}
SvTAINTED_on(sv);
}
}
STATUS_NATIVE_SET(PerlProc_pclose(fp));
TAINT; /* "I believe that this is not gratuitous!" */
}
else {
STATUS_NATIVE_SET(-1);
if (gimme == G_SCALAR)
RETPUSHUNDEF;
}
RETURN;
}
PP(pp_glob)
{
OP *result;
ENTER;
#ifndef VMS
if (PL_tainting) {
/*
* The external globbing program may use things we can't control,
* so for security reasons we must assume the worst.
*/
TAINT;
taint_proper(no_security, "glob");
}
#endif /* !VMS */
SAVESPTR(PL_last_in_gv); /* We don't want this to be permanent. */
PL_last_in_gv = (GV*)*PL_stack_sp--;
SAVESPTR(PL_rs); /* This is not permanent, either. */
PL_rs = sv_2mortal(newSVpv("", 1));
#ifndef DOSISH
#ifndef CSH
*SvPVX(PL_rs) = '\n';
#endif /* !CSH */
#endif /* !DOSISH */
result = do_readline();
LEAVE;
return result;
}
#if 0 /* XXX never used! */
PP(pp_indread)
{
PL_last_in_gv = gv_fetchpv(SvPVx(GvSV((GV*)(*PL_stack_sp--)), PL_na), TRUE,SVt_PVIO);
return do_readline();
}
#endif
PP(pp_rcatline)
{
PL_last_in_gv = cGVOP->op_gv;
return do_readline();
}
PP(pp_warn)
{
djSP; dMARK;
char *tmps;
if (SP - MARK != 1) {
dTARGET;
do_join(TARG, &PL_sv_no, MARK, SP);
tmps = SvPV(TARG, PL_na);
SP = MARK + 1;
}
else {
tmps = SvPV(TOPs, PL_na);
}
if (!tmps || !*tmps) {
SV *error = ERRSV;
(void)SvUPGRADE(error, SVt_PV);
if (SvPOK(error) && SvCUR(error))
sv_catpv(error, "\t...caught");
tmps = SvPV(error, PL_na);
}
if (!tmps || !*tmps)
tmps = "Warning: something's wrong";
warn("%s", tmps);
RETSETYES;
}
PP(pp_die)
{
djSP; dMARK;
char *tmps;
SV *tmpsv = Nullsv;
char *pat = "%s";
if (SP - MARK != 1) {
dTARGET;
do_join(TARG, &PL_sv_no, MARK, SP);
tmps = SvPV(TARG, PL_na);
SP = MARK + 1;
}
else {
tmpsv = TOPs;
tmps = SvROK(tmpsv) ? Nullch : SvPV(tmpsv, PL_na);
}
if (!tmps || !*tmps) {
SV *error = ERRSV;
(void)SvUPGRADE(error, SVt_PV);
if(tmpsv ? SvROK(tmpsv) : SvROK(error)) {
if(tmpsv)
SvSetSV(error,tmpsv);
else if(sv_isobject(error)) {
HV *stash = SvSTASH(SvRV(error));
GV *gv = gv_fetchmethod(stash, "PROPAGATE");
if (gv) {
SV *file = sv_2mortal(newSVsv(GvSV(PL_curcop->cop_filegv)));
SV *line = sv_2mortal(newSViv(PL_curcop->cop_line));
EXTEND(SP, 3);
PUSHMARK(SP);
PUSHs(error);
PUSHs(file);
PUSHs(line);
PUTBACK;
perl_call_sv((SV*)GvCV(gv),
G_SCALAR|G_EVAL|G_KEEPERR);
sv_setsv(error,*PL_stack_sp--);
}
}
pat = Nullch;
}
else {
if (SvPOK(error) && SvCUR(error))
sv_catpv(error, "\t...propagated");
tmps = SvPV(error, PL_na);
}
}
if (!tmps || !*tmps)
tmps = "Died";
DIE(pat, tmps);
}
/* I/O. */
PP(pp_open)
{
djSP; dTARGET;
GV *gv;
SV *sv;
char *tmps;
STRLEN len;
if (MAXARG > 1)
sv = POPs;
if (!isGV(TOPs))
DIE(no_usym, "filehandle");
if (MAXARG <= 1)
sv = GvSV(TOPs);
gv = (GV*)POPs;
if (!isGV(gv))
DIE(no_usym, "filehandle");
if (GvIOp(gv))
IoFLAGS(GvIOp(gv)) &= ~IOf_UNTAINT;
tmps = SvPV(sv, len);
if (do_open(gv, tmps, len, FALSE, O_RDONLY, 0, Nullfp))
PUSHi( (I32)PL_forkprocess );
else if (PL_forkprocess == 0) /* we are a new child */
PUSHi(0);
else
RETPUSHUNDEF;
RETURN;
}
PP(pp_close)
{
djSP;
GV *gv;
MAGIC *mg;
if (MAXARG == 0)
gv = PL_defoutgv;
else
gv = (GV*)POPs;
if (SvRMAGICAL(gv) && (mg = mg_find((SV*)gv, 'q'))) {
PUSHMARK(SP);
XPUSHs(mg->mg_obj);
PUTBACK;
ENTER;
perl_call_method("CLOSE", G_SCALAR);
LEAVE;
SPAGAIN;
RETURN;
}
EXTEND(SP, 1);
PUSHs(boolSV(do_close(gv, TRUE)));
RETURN;
}
PP(pp_pipe_op)
{
djSP;
#ifdef HAS_PIPE
GV *rgv;
GV *wgv;
register IO *rstio;
register IO *wstio;
int fd[2];
wgv = (GV*)POPs;
rgv = (GV*)POPs;
if (!rgv || !wgv)
goto badexit;
if (SvTYPE(rgv) != SVt_PVGV || SvTYPE(wgv) != SVt_PVGV)
DIE(no_usym, "filehandle");
rstio = GvIOn(rgv);
wstio = GvIOn(wgv);
if (IoIFP(rstio))
do_close(rgv, FALSE);
if (IoIFP(wstio))
do_close(wgv, FALSE);
if (PerlProc_pipe(fd) < 0)
goto badexit;
IoIFP(rstio) = PerlIO_fdopen(fd[0], "r");
IoOFP(wstio) = PerlIO_fdopen(fd[1], "w");
IoIFP(wstio) = IoOFP(wstio);
IoTYPE(rstio) = '<';
IoTYPE(wstio) = '>';
if (!IoIFP(rstio) || !IoOFP(wstio)) {
if (IoIFP(rstio)) PerlIO_close(IoIFP(rstio));
else PerlLIO_close(fd[0]);
if (IoOFP(wstio)) PerlIO_close(IoOFP(wstio));
else PerlLIO_close(fd[1]);
goto badexit;
}
RETPUSHYES;
badexit:
RETPUSHUNDEF;
#else
DIE(no_func, "pipe");
#endif
}
PP(pp_fileno)
{
djSP; dTARGET;
GV *gv;
IO *io;
PerlIO *fp;
if (MAXARG < 1)
RETPUSHUNDEF;
gv = (GV*)POPs;
if (!gv || !(io = GvIO(gv)) || !(fp = IoIFP(io)))
RETPUSHUNDEF;
PUSHi(PerlIO_fileno(fp));
RETURN;
}
PP(pp_umask)
{
djSP; dTARGET;
int anum;
#ifdef HAS_UMASK
if (MAXARG < 1) {
anum = PerlLIO_umask(0);
(void)PerlLIO_umask(anum);
}
else
anum = PerlLIO_umask(POPi);
TAINT_PROPER("umask");
XPUSHi(anum);
#else
/* Only DIE if trying to restrict permissions on `user' (self).
* Otherwise it's harmless and more useful to just return undef
* since 'group' and 'other' concepts probably don't exist here. */
if (MAXARG >= 1 && (POPi & 0700))
DIE("umask not implemented");
XPUSHs(&PL_sv_undef);
#endif
RETURN;
}
PP(pp_binmode)
{
djSP;
GV *gv;
IO *io;
PerlIO *fp;
if (MAXARG < 1)
RETPUSHUNDEF;
gv = (GV*)POPs;
EXTEND(SP, 1);
if (!(io = GvIO(gv)) || !(fp = IoIFP(io)))
RETPUSHUNDEF;
if (do_binmode(fp,IoTYPE(io),TRUE))
RETPUSHYES;
else
RETPUSHUNDEF;
}
PP(pp_tie)
{
djSP;
dMARK;
SV *varsv;
HV* stash;
GV *gv;
SV *sv;
I32 markoff = MARK - PL_stack_base;
char *methname;
int how = 'P';
U32 items;
varsv = *++MARK;
switch(SvTYPE(varsv)) {
case SVt_PVHV:
methname = "TIEHASH";
break;
case SVt_PVAV:
methname = "TIEARRAY";
break;
case SVt_PVGV:
methname = "TIEHANDLE";
how = 'q';
break;
default:
methname = "TIESCALAR";
how = 'q';
break;
}
items = SP - MARK++;
if (sv_isobject(*MARK)) {
ENTER;
PUSHSTACKi(PERLSI_MAGIC);
PUSHMARK(SP);
EXTEND(SP,items);
while (items--)
PUSHs(*MARK++);
PUTBACK;
perl_call_method(methname, G_SCALAR);
}
else {
/* Not clear why we don't call perl_call_method here too.
* perhaps to get different error message ?
*/
stash = gv_stashsv(*MARK, FALSE);
if (!stash || !(gv = gv_fetchmethod(stash, methname))) {
DIE("Can't locate object method \"%s\" via package \"%s\"",
methname, SvPV(*MARK,PL_na));
}
ENTER;
PUSHSTACKi(PERLSI_MAGIC);
PUSHMARK(SP);
EXTEND(SP,items);
while (items--)
PUSHs(*MARK++);
PUTBACK;
perl_call_sv((SV*)GvCV(gv), G_SCALAR);
}
SPAGAIN;
sv = TOPs;
POPSTACK;
if (sv_isobject(sv)) {
sv_unmagic(varsv, how);
sv_magic(varsv, sv, how, Nullch, 0);
}
LEAVE;
SP = PL_stack_base + markoff;
PUSHs(sv);
RETURN;
}
PP(pp_untie)
{
djSP;
SV * sv ;
sv = POPs;
if (PL_dowarn) {
MAGIC * mg ;
if (SvMAGICAL(sv)) {
if (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
mg = mg_find(sv, 'P') ;
else
mg = mg_find(sv, 'q') ;
if (mg && SvREFCNT(SvRV(mg->mg_obj)) > 1)
warn("untie attempted while %lu inner references still exist",
(unsigned long)SvREFCNT(SvRV(mg->mg_obj)) - 1 ) ;
}
}
if (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
sv_unmagic(sv, 'P');
else
sv_unmagic(sv, 'q');
RETPUSHYES;
}
PP(pp_tied)
{
djSP;
SV * sv ;
MAGIC * mg ;
sv = POPs;
if (SvMAGICAL(sv)) {
if (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
mg = mg_find(sv, 'P') ;
else
mg = mg_find(sv, 'q') ;
if (mg) {
PUSHs(sv_2mortal(newSVsv(mg->mg_obj))) ;
RETURN ;
}
}
RETPUSHUNDEF;
}
PP(pp_dbmopen)
{
djSP;
HV *hv;
dPOPPOPssrl;
HV* stash;
GV *gv;
SV *sv;
hv = (HV*)POPs;
sv = sv_mortalcopy(&PL_sv_no);
sv_setpv(sv, "AnyDBM_File");
stash = gv_stashsv(sv, FALSE);
if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH"))) {
PUTBACK;
perl_require_pv("AnyDBM_File.pm");
SPAGAIN;
if (!(gv = gv_fetchmethod(stash, "TIEHASH")))
DIE("No dbm on this machine");
}
ENTER;
PUSHMARK(SP);
EXTEND(SP, 5);
PUSHs(sv);
PUSHs(left);
if (SvIV(right))
PUSHs(sv_2mortal(newSViv(O_RDWR|O_CREAT)));
else
PUSHs(sv_2mortal(newSViv(O_RDWR)));
PUSHs(right);
PUTBACK;
perl_call_sv((SV*)GvCV(gv), G_SCALAR);
SPAGAIN;
if (!sv_isobject(TOPs)) {
SP--;
PUSHMARK(SP);
PUSHs(sv);
PUSHs(left);
PUSHs(sv_2mortal(newSViv(O_RDONLY)));
PUSHs(right);
PUTBACK;
perl_call_sv((SV*)GvCV(gv), G_SCALAR);
SPAGAIN;
}
if (sv_isobject(TOPs)) {
sv_unmagic((SV *) hv, 'P');
sv_magic((SV*)hv, TOPs, 'P', Nullch, 0);
}
LEAVE;
RETURN;
}
PP(pp_dbmclose)
{
return pp_untie(ARGS);
}
PP(pp_sselect)
{
djSP; dTARGET;
#ifdef HAS_SELECT
register I32 i;
register I32 j;
register char *s;
register SV *sv;
double value;
I32 maxlen = 0;
I32 nfound;
struct timeval timebuf;
struct timeval *tbuf = &timebuf;
I32 growsize;
char *fd_sets[4];
#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
I32 masksize;
I32 offset;
I32 k;
# if BYTEORDER & 0xf0000
# define ORDERBYTE (0x88888888 - BYTEORDER)
# else
# define ORDERBYTE (0x4444 - BYTEORDER)
# endif
#endif
SP -= 4;
for (i = 1; i <= 3; i++) {
if (!SvPOK(SP[i]))
continue;
j = SvCUR(SP[i]);
if (maxlen < j)
maxlen = j;
}
#if BYTEORDER == 0x1234 || BYTEORDER == 0x12345678
/* XXX Configure test needed. */
#if defined(__linux__) || defined(OS2) || defined(NeXT) || defined(__osf__) || defined(sun)
growsize = sizeof(fd_set);
#else
growsize = maxlen; /* little endians can use vecs directly */
#endif
#else
#ifdef NFDBITS
#ifndef NBBY
#define NBBY 8
#endif
masksize = NFDBITS / NBBY;
#else
masksize = sizeof(long); /* documented int, everyone seems to use long */
#endif
growsize = maxlen + (masksize - (maxlen % masksize));
Zero(&fd_sets[0], 4, char*);
#endif
sv = SP[4];
if (SvOK(sv)) {
value = SvNV(sv);
if (value < 0.0)
value = 0.0;
timebuf.tv_sec = (long)value;
value -= (double)timebuf.tv_sec;
timebuf.tv_usec = (long)(value * 1000000.0);
}
else
tbuf = Null(struct timeval*);
for (i = 1; i <= 3; i++) {
sv = SP[i];
if (!SvOK(sv)) {
fd_sets[i] = 0;
continue;
}
else if (!SvPOK(sv))
SvPV_force(sv,PL_na); /* force string conversion */
j = SvLEN(sv);
if (j < growsize) {
Sv_Grow(sv, growsize);
}
j = SvCUR(sv);
s = SvPVX(sv) + j;
while (++j <= growsize) {
*s++ = '\0';
}
#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
s = SvPVX(sv);
New(403, fd_sets[i], growsize, char);
for (offset = 0; offset < growsize; offset += masksize) {
for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
fd_sets[i][j+offset] = s[(k % masksize) + offset];
}
#else
fd_sets[i] = SvPVX(sv);
#endif
}
nfound = PerlSock_select(
maxlen * 8,
(Select_fd_set_t) fd_sets[1],
(Select_fd_set_t) fd_sets[2],
(Select_fd_set_t) fd_sets[3],
tbuf);
for (i = 1; i <= 3; i++) {
if (fd_sets[i]) {
sv = SP[i];
#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
s = SvPVX(sv);
for (offset = 0; offset < growsize; offset += masksize) {
for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
s[(k % masksize) + offset] = fd_sets[i][j+offset];
}
Safefree(fd_sets[i]);
#endif
SvSETMAGIC(sv);
}
}
PUSHi(nfound);
if (GIMME == G_ARRAY && tbuf) {
value = (double)(timebuf.tv_sec) +
(double)(timebuf.tv_usec) / 1000000.0;
PUSHs(sv = sv_mortalcopy(&PL_sv_no));
sv_setnv(sv, value);
}
RETURN;
#else
DIE("select not implemented");
#endif
}
void
setdefout(GV *gv)
{
dTHR;
if (gv)
(void)SvREFCNT_inc(gv);
if (PL_defoutgv)
SvREFCNT_dec(PL_defoutgv);
PL_defoutgv = gv;
}
PP(pp_select)
{
djSP; dTARGET;
GV *newdefout, *egv;
HV *hv;
newdefout = (PL_op->op_private > 0) ? ((GV *) POPs) : (GV *) NULL;
egv = GvEGV(PL_defoutgv);
if (!egv)
egv = PL_defoutgv;
hv = GvSTASH(egv);
if (! hv)
XPUSHs(&PL_sv_undef);
else {
GV **gvp = (GV**)hv_fetch(hv, GvNAME(egv), GvNAMELEN(egv), FALSE);
if (gvp && *gvp == egv) {
gv_efullname3(TARG, PL_defoutgv, Nullch);
XPUSHTARG;
}
else {
XPUSHs(sv_2mortal(newRV((SV*)egv)));
}
}
if (newdefout) {
if (!GvIO(newdefout))
gv_IOadd(newdefout);
setdefout(newdefout);
}
RETURN;
}
PP(pp_getc)
{
djSP; dTARGET;
GV *gv;
MAGIC *mg;
if (MAXARG <= 0)
gv = PL_stdingv;
else
gv = (GV*)POPs;
if (!gv)
gv = PL_argvgv;
if (SvRMAGICAL(gv) && (mg = mg_find((SV*)gv, 'q'))) {
I32 gimme = GIMME_V;
PUSHMARK(SP);
XPUSHs(mg->mg_obj);
PUTBACK;
ENTER;
perl_call_method("GETC", gimme);
LEAVE;
SPAGAIN;
if (gimme == G_SCALAR)
SvSetMagicSV_nosteal(TARG, TOPs);
RETURN;
}
if (!gv || do_eof(gv)) /* make sure we have fp with something */
RETPUSHUNDEF;
TAINT;
sv_setpv(TARG, " ");
*SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
PUSHTARG;
RETURN;
}
PP(pp_read)
{
return pp_sysread(ARGS);
}
STATIC OP *
doform(CV *cv, GV *gv, OP *retop)
{
dTHR;
register PERL_CONTEXT *cx;
I32 gimme = GIMME_V;
AV* padlist = CvPADLIST(cv);
SV** svp = AvARRAY(padlist);
ENTER;
SAVETMPS;
push_return(retop);
PUSHBLOCK(cx, CXt_SUB, PL_stack_sp);
PUSHFORMAT(cx);
SAVESPTR(PL_curpad);
PL_curpad = AvARRAY((AV*)svp[1]);
setdefout(gv); /* locally select filehandle so $% et al work */
return CvSTART(cv);
}
PP(pp_enterwrite)
{
djSP;
register GV *gv;
register IO *io;
GV *fgv;
CV *cv;
if (MAXARG == 0)
gv = PL_defoutgv;
else {
gv = (GV*)POPs;
if (!gv)
gv = PL_defoutgv;
}
EXTEND(SP, 1);
io = GvIO(gv);
if (!io) {
RETPUSHNO;
}
if (IoFMT_GV(io))
fgv = IoFMT_GV(io);
else
fgv = gv;
cv = GvFORM(fgv);
if (!cv) {
if (fgv) {
SV *tmpsv = sv_newmortal();
gv_efullname3(tmpsv, fgv, Nullch);
DIE("Undefined format \"%s\" called",SvPVX(tmpsv));
}
DIE("Not a format reference");
}
if (CvCLONE(cv))
cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
IoFLAGS(io) &= ~IOf_DIDTOP;
return doform(cv,gv,PL_op->op_next);
}
PP(pp_leavewrite)
{
djSP;
GV *gv = cxstack[cxstack_ix].blk_sub.gv;
register IO *io = GvIOp(gv);
PerlIO *ofp = IoOFP(io);
PerlIO *fp;
SV **newsp;
I32 gimme;
register PERL_CONTEXT *cx;
DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
(long)IoLINES_LEFT(io), (long)FmLINES(PL_formtarget)));
if (IoLINES_LEFT(io) < FmLINES(PL_formtarget) &&
PL_formtarget != PL_toptarget)
{
GV *fgv;
CV *cv;
if (!IoTOP_GV(io)) {
GV *topgv;
SV *topname;
if (!IoTOP_NAME(io)) {
if (!IoFMT_NAME(io))
IoFMT_NAME(io) = savepv(GvNAME(gv));
topname = sv_2mortal(newSVpvf("%s_TOP", IoFMT_NAME(io)));
topgv = gv_fetchpv(SvPVX(topname), FALSE, SVt_PVFM);
if ((topgv && GvFORM(topgv)) ||
!gv_fetchpv("top",FALSE,SVt_PVFM))
IoTOP_NAME(io) = savepv(SvPVX(topname));
else
IoTOP_NAME(io) = savepv("top");
}
topgv = gv_fetchpv(IoTOP_NAME(io),FALSE, SVt_PVFM);
if (!topgv || !GvFORM(topgv)) {
IoLINES_LEFT(io) = 100000000;
goto forget_top;
}
IoTOP_GV(io) = topgv;
}
if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
I32 lines = IoLINES_LEFT(io);
char *s = SvPVX(PL_formtarget);
if (lines <= 0) /* Yow, header didn't even fit!!! */
goto forget_top;
while (lines-- > 0) {
s = strchr(s, '\n');
if (!s)
break;
s++;
}
if (s) {
PerlIO_write(ofp, SvPVX(PL_formtarget), s - SvPVX(PL_formtarget));
sv_chop(PL_formtarget, s);
FmLINES(PL_formtarget) -= IoLINES_LEFT(io);
}
}
if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
PerlIO_write(ofp, SvPVX(PL_formfeed), SvCUR(PL_formfeed));
IoLINES_LEFT(io) = IoPAGE_LEN(io);
IoPAGE(io)++;
PL_formtarget = PL_toptarget;
IoFLAGS(io) |= IOf_DIDTOP;
fgv = IoTOP_GV(io);
if (!fgv)
DIE("bad top format reference");
cv = GvFORM(fgv);
if (!cv) {
SV *tmpsv = sv_newmortal();
gv_efullname3(tmpsv, fgv, Nullch);
DIE("Undefined top format \"%s\" called",SvPVX(tmpsv));
}
if (CvCLONE(cv))
cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
return doform(cv,gv,PL_op);
}
forget_top:
POPBLOCK(cx,PL_curpm);
POPFORMAT(cx);
LEAVE;
fp = IoOFP(io);
if (!fp) {
if (PL_dowarn) {
if (IoIFP(io))
warn("Filehandle only opened for input");
else
warn("Write on closed filehandle");
}
PUSHs(&PL_sv_no);
}
else {
if ((IoLINES_LEFT(io) -= FmLINES(PL_formtarget)) < 0) {
if (PL_dowarn)
warn("page overflow");
}
if (!PerlIO_write(ofp, SvPVX(PL_formtarget), SvCUR(PL_formtarget)) ||
PerlIO_error(fp))
PUSHs(&PL_sv_no);
else {
FmLINES(PL_formtarget) = 0;
SvCUR_set(PL_formtarget, 0);
*SvEND(PL_formtarget) = '\0';
if (IoFLAGS(io) & IOf_FLUSH)
(void)PerlIO_flush(fp);
PUSHs(&PL_sv_yes);
}
}
PL_formtarget = PL_bodytarget;
PUTBACK;
return pop_return();
}
PP(pp_prtf)
{
djSP; dMARK; dORIGMARK;
GV *gv;
IO *io;
PerlIO *fp;
SV *sv;
MAGIC *mg;
if (PL_op->op_flags & OPf_STACKED)
gv = (GV*)*++MARK;
else
gv = PL_defoutgv;
if (SvRMAGICAL(gv) && (mg = mg_find((SV*)gv, 'q'))) {
if (MARK == ORIGMARK) {
MEXTEND(SP, 1);
++MARK;
Move(MARK, MARK + 1, (SP - MARK) + 1, SV*);
++SP;
}
PUSHMARK(MARK - 1);
*MARK = mg->mg_obj;
PUTBACK;
ENTER;
perl_call_method("PRINTF", G_SCALAR);
LEAVE;
SPAGAIN;
MARK = ORIGMARK + 1;
*MARK = *SP;
SP = MARK;
RETURN;
}
sv = NEWSV(0,0);
if (!(io = GvIO(gv))) {
if (PL_dowarn) {
gv_fullname3(sv, gv, Nullch);
warn("Filehandle %s never opened", SvPV(sv,PL_na));
}
SETERRNO(EBADF,RMS$_IFI);
goto just_say_no;
}
else if (!(fp = IoOFP(io))) {
if (PL_dowarn) {
gv_fullname3(sv, gv, Nullch);
if (IoIFP(io))
warn("Filehandle %s opened only for input", SvPV(sv,PL_na));
else
warn("printf on closed filehandle %s", SvPV(sv,PL_na));
}
SETERRNO(EBADF,IoIFP(io)?RMS$_FAC:RMS$_IFI);
goto just_say_no;
}
else {
#ifdef USE_LOCALE_NUMERIC
if (PL_op->op_private & OPpLOCALE)
SET_NUMERIC_LOCAL();
else
SET_NUMERIC_STANDARD();
#endif
do_sprintf(sv, SP - MARK, MARK + 1);
if (!do_print(sv, fp))
goto just_say_no;
if (IoFLAGS(io) & IOf_FLUSH)
if (PerlIO_flush(fp) == EOF)
goto just_say_no;
}
SvREFCNT_dec(sv);
SP = ORIGMARK;
PUSHs(&PL_sv_yes);
RETURN;
just_say_no:
SvREFCNT_dec(sv);
SP = ORIGMARK;
PUSHs(&PL_sv_undef);
RETURN;
}
PP(pp_sysopen)
{
djSP;
GV *gv;
SV *sv;
char *tmps;
STRLEN len;
int mode, perm;
if (MAXARG > 3)
perm = POPi;
else
perm = 0666;
mode = POPi;
sv = POPs;
gv = (GV *)POPs;
tmps = SvPV(sv, len);
if (do_open(gv, tmps, len, TRUE, mode, perm, Nullfp)) {
IoLINES(GvIOp(gv)) = 0;
PUSHs(&PL_sv_yes);
}
else {
PUSHs(&PL_sv_undef);
}
RETURN;
}
PP(pp_sysread)
{
djSP; dMARK; dORIGMARK; dTARGET;
int offset;
GV *gv;
IO *io;
char *buffer;
SSize_t length;
Sock_size_t bufsize;
SV *bufsv;
STRLEN blen;
MAGIC *mg;
gv = (GV*)*++MARK;
if ((PL_op->op_type == OP_READ || PL_op->op_type == OP_SYSREAD) &&
SvRMAGICAL(gv) && (mg = mg_find((SV*)gv, 'q')))
{
SV *sv;
PUSHMARK(MARK-1);
*MARK = mg->mg_obj;
ENTER;
perl_call_method("READ", G_SCALAR);
LEAVE;
SPAGAIN;
sv = POPs;
SP = ORIGMARK;
PUSHs(sv);
RETURN;
}
if (!gv)
goto say_undef;
bufsv = *++MARK;
if (! SvOK(bufsv))
sv_setpvn(bufsv, "", 0);
buffer = SvPV_force(bufsv, blen);
length = SvIVx(*++MARK);
if (length < 0)
DIE("Negative length");
SETERRNO(0,0);
if (MARK < SP)
offset = SvIVx(*++MARK);
else
offset = 0;
io = GvIO(gv);
if (!io || !IoIFP(io))
goto say_undef;
#ifdef HAS_SOCKET
if (PL_op->op_type == OP_RECV) {
char namebuf[MAXPATHLEN];
#if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE)
bufsize = sizeof (struct sockaddr_in);
#else
bufsize = sizeof namebuf;
#endif
buffer = SvGROW(bufsv, length+1);
/* 'offset' means 'flags' here */
length = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset,
(struct sockaddr *)namebuf, &bufsize);
if (length < 0)
RETPUSHUNDEF;
SvCUR_set(bufsv, length);
*SvEND(bufsv) = '\0';
(void)SvPOK_only(bufsv);
SvSETMAGIC(bufsv);
/* This should not be marked tainted if the fp is marked clean */
if (!(IoFLAGS(io) & IOf_UNTAINT))
SvTAINTED_on(bufsv);
SP = ORIGMARK;
sv_setpvn(TARG, namebuf, bufsize);
PUSHs(TARG);
RETURN;
}
#else
if (PL_op->op_type == OP_RECV)
DIE(no_sock_func, "recv");
#endif
if (offset < 0) {
if (-offset > blen)
DIE("Offset outside string");
offset += blen;
}
bufsize = SvCUR(bufsv);
buffer = SvGROW(bufsv, length+offset+1);
if (offset > bufsize) { /* Zero any newly allocated space */
Zero(buffer+bufsize, offset-bufsize, char);
}
if (PL_op->op_type == OP_SYSREAD) {
length = PerlLIO_read(PerlIO_fileno(IoIFP(io)), buffer+offset, length);
}
else
#ifdef HAS_SOCKET__bad_code_maybe
if (IoTYPE(io) == 's') {
char namebuf[MAXPATHLEN];
#if defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)
bufsize = sizeof (struct sockaddr_in);
#else
bufsize = sizeof namebuf;
#endif
length = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer+offset, length, 0,
(struct sockaddr *)namebuf, &bufsize);
}
else
#endif
{
length = PerlIO_read(IoIFP(io), buffer+offset, length);
/* fread() returns 0 on both error and EOF */
if (length == 0 && PerlIO_error(IoIFP(io)))
length = -1;
}
if (length < 0)
goto say_undef;
SvCUR_set(bufsv, length+offset);
*SvEND(bufsv) = '\0';
(void)SvPOK_only(bufsv);
SvSETMAGIC(bufsv);
/* This should not be marked tainted if the fp is marked clean */
if (!(IoFLAGS(io) & IOf_UNTAINT))
SvTAINTED_on(bufsv);
SP = ORIGMARK;
PUSHi(length);
RETURN;
say_undef:
SP = ORIGMARK;
RETPUSHUNDEF;
}
PP(pp_syswrite)
{
return pp_send(ARGS);
}
PP(pp_send)
{
djSP; dMARK; dORIGMARK; dTARGET;
GV *gv;
IO *io;
int offset;
SV *bufsv;
char *buffer;
int length;
STRLEN blen;
MAGIC *mg;
gv = (GV*)*++MARK;
if (PL_op->op_type == OP_SYSWRITE &&
SvRMAGICAL(gv) && (mg = mg_find((SV*)gv, 'q')))
{
SV *sv;
PUSHMARK(MARK-1);
*MARK = mg->mg_obj;
ENTER;
perl_call_method("WRITE", G_SCALAR);
LEAVE;
SPAGAIN;
sv = POPs;
SP = ORIGMARK;
PUSHs(sv);
RETURN;
}
if (!gv)
goto say_undef;
bufsv = *++MARK;
buffer = SvPV(bufsv, blen);
length = SvIVx(*++MARK);
if (length < 0)
DIE("Negative length");
SETERRNO(0,0);
io = GvIO(gv);
if (!io || !IoIFP(io)) {
length = -1;
if (PL_dowarn) {
if (PL_op->op_type == OP_SYSWRITE)
warn("Syswrite on closed filehandle");
else
warn("Send on closed socket");
}
}
else if (PL_op->op_type == OP_SYSWRITE) {
if (MARK < SP) {
offset = SvIVx(*++MARK);
if (offset < 0) {
if (-offset > blen)
DIE("Offset outside string");
offset += blen;
} else if (offset >= blen && blen > 0)
DIE("Offset outside string");
} else
offset = 0;
if (length > blen - offset)
length = blen - offset;
length = PerlLIO_write(PerlIO_fileno(IoIFP(io)), buffer+offset, length);
}
#ifdef HAS_SOCKET
else if (SP > MARK) {
char *sockbuf;
STRLEN mlen;
sockbuf = SvPVx(*++MARK, mlen);
length = PerlSock_sendto(PerlIO_fileno(IoIFP(io)), buffer, blen, length,
(struct sockaddr *)sockbuf, mlen);
}
else
length = PerlSock_send(PerlIO_fileno(IoIFP(io)), buffer, blen, length);
#else
else
DIE(no_sock_func, "send");
#endif
if (length < 0)
goto say_undef;
SP = ORIGMARK;
PUSHi(length);
RETURN;
say_undef:
SP = ORIGMARK;
RETPUSHUNDEF;
}
PP(pp_recv)
{
return pp_sysread(ARGS);
}
PP(pp_eof)
{
djSP;
GV *gv;
if (MAXARG <= 0)
gv = PL_last_in_gv;
else
gv = PL_last_in_gv = (GV*)POPs;
PUSHs(boolSV(!gv || do_eof(gv)));
RETURN;
}
PP(pp_tell)
{
djSP; dTARGET;
GV *gv;
if (MAXARG <= 0)
gv = PL_last_in_gv;
else
gv = PL_last_in_gv = (GV*)POPs;
PUSHi( do_tell(gv) );
RETURN;
}
PP(pp_seek)
{
return pp_sysseek(ARGS);
}
PP(pp_sysseek)
{
djSP;
GV *gv;
int whence = POPi;
long offset = POPl;
gv = PL_last_in_gv = (GV*)POPs;
if (PL_op->op_type == OP_SEEK)
PUSHs(boolSV(do_seek(gv, offset, whence)));
else {
long n = do_sysseek(gv, offset, whence);
PUSHs((n < 0) ? &PL_sv_undef
: sv_2mortal(n ? newSViv((IV)n)
: newSVpv(zero_but_true, ZBTLEN)));
}
RETURN;
}
PP(pp_truncate)
{
djSP;
Off_t len = (Off_t)POPn;
int result = 1;
GV *tmpgv;
SETERRNO(0,0);
#if defined(HAS_TRUNCATE) || defined(HAS_CHSIZE) || defined(F_FREESP)
if (PL_op->op_flags & OPf_SPECIAL) {
tmpgv = gv_fetchpv(POPp, FALSE, SVt_PVIO);
do_ftruncate:
TAINT_PROPER("truncate");
if (!GvIO(tmpgv) || !IoIFP(GvIOp(tmpgv)) ||
#ifdef HAS_TRUNCATE
ftruncate(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
#else
my_chsize(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
#endif
result = 0;
}
else {
SV *sv = POPs;
char *name;
if (SvTYPE(sv) == SVt_PVGV) {
tmpgv = (GV*)sv; /* *main::FRED for example */
goto do_ftruncate;
}
else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
tmpgv = (GV*) SvRV(sv); /* \*main::FRED for example */
goto do_ftruncate;
}
name = SvPV(sv, PL_na);
TAINT_PROPER("truncate");
#ifdef HAS_TRUNCATE
if (truncate(name, len) < 0)
result = 0;
#else
{
int tmpfd;
if ((tmpfd = PerlLIO_open(name, O_RDWR)) < 0)
result = 0;
else {
if (my_chsize(tmpfd, len) < 0)
result = 0;
PerlLIO_close(tmpfd);
}
}
#endif
}
if (result)
RETPUSHYES;
if (!errno)
SETERRNO(EBADF,RMS$_IFI);
RETPUSHUNDEF;
#else
DIE("truncate not implemented");
#endif
}
PP(pp_fcntl)
{
return pp_ioctl(ARGS);
}
PP(pp_ioctl)
{
djSP; dTARGET;
SV *argsv = POPs;
unsigned int func = U_I(POPn);
int optype = PL_op->op_type;
char *s;
IV retval;
GV *gv = (GV*)POPs;
IO *io = GvIOn(gv);
if (!io || !argsv || !IoIFP(io)) {
SETERRNO(EBADF,RMS$_IFI); /* well, sort of... */
RETPUSHUNDEF;
}
if (SvPOK(argsv) || !SvNIOK(argsv)) {
STRLEN len;
STRLEN need;
s = SvPV_force(argsv, len);
need = IOCPARM_LEN(func);
if (len < need) {
s = Sv_Grow(argsv, need + 1);
SvCUR_set(argsv, need);
}
s[SvCUR(argsv)] = 17; /* a little sanity check here */
}
else {
retval = SvIV(argsv);
s = (char*)retval; /* ouch */
}
TAINT_PROPER(optype == OP_IOCTL ? "ioctl" : "fcntl");
if (optype == OP_IOCTL)
#ifdef HAS_IOCTL
retval = PerlLIO_ioctl(PerlIO_fileno(IoIFP(io)), func, s);
#else
DIE("ioctl is not implemented");
#endif
else
#ifdef HAS_FCNTL
#if defined(OS2) && defined(__EMX__)
retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
#else
retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
#endif
#else
DIE("fcntl is not implemented");
#endif
if (SvPOK(argsv)) {
if (s[SvCUR(argsv)] != 17)
DIE("Possible memory corruption: %s overflowed 3rd argument",
op_name[optype]);
s[SvCUR(argsv)] = 0; /* put our null back */
SvSETMAGIC(argsv); /* Assume it has changed */
}
if (retval == -1)
RETPUSHUNDEF;
if (retval != 0) {
PUSHi(retval);
}
else {
PUSHp(zero_but_true, ZBTLEN);
}
RETURN;
}
PP(pp_flock)
{
djSP; dTARGET;
I32 value;
int argtype;
GV *gv;
PerlIO *fp;
#ifdef FLOCK
argtype = POPi;
if (MAXARG <= 0)
gv = PL_last_in_gv;
else
gv = (GV*)POPs;
if (gv && GvIO(gv))
fp = IoIFP(GvIOp(gv));
else
fp = Nullfp;
if (fp) {
(void)PerlIO_flush(fp);
value = (I32)(PerlLIO_flock(PerlIO_fileno(fp), argtype) >= 0);
}
else
value = 0;
PUSHi(value);
RETURN;
#else
DIE(no_func, "flock()");
#endif
}
/* Sockets. */
PP(pp_socket)
{
djSP;
#ifdef HAS_SOCKET
GV *gv;
register IO *io;
int protocol = POPi;
int type = POPi;
int domain = POPi;
int fd;
gv = (GV*)POPs;
if (!gv) {
SETERRNO(EBADF,LIB$_INVARG);
RETPUSHUNDEF;
}
io = GvIOn(gv);
if (IoIFP(io))
do_close(gv, FALSE);
TAINT_PROPER("socket");
fd = PerlSock_socket(domain, type, protocol);
if (fd < 0)
RETPUSHUNDEF;
IoIFP(io) = PerlIO_fdopen(fd, "r"); /* stdio gets confused about sockets */
IoOFP(io) = PerlIO_fdopen(fd, "w");
IoTYPE(io) = 's';
if (!IoIFP(io) || !IoOFP(io)) {
if (IoIFP(io)) PerlIO_close(IoIFP(io));
if (IoOFP(io)) PerlIO_close(IoOFP(io));
if (!IoIFP(io) && !IoOFP(io)) PerlLIO_close(fd);
RETPUSHUNDEF;
}
RETPUSHYES;
#else
DIE(no_sock_func, "socket");
#endif
}
PP(pp_sockpair)
{
djSP;
#ifdef HAS_SOCKETPAIR
GV *gv1;
GV *gv2;
register IO *io1;
register IO *io2;
int protocol = POPi;
int type = POPi;
int domain = POPi;
int fd[2];
gv2 = (GV*)POPs;
gv1 = (GV*)POPs;
if (!gv1 || !gv2)
RETPUSHUNDEF;
io1 = GvIOn(gv1);
io2 = GvIOn(gv2);
if (IoIFP(io1))
do_close(gv1, FALSE);
if (IoIFP(io2))
do_close(gv2, FALSE);
TAINT_PROPER("socketpair");
if (PerlSock_socketpair(domain, type, protocol, fd) < 0)
RETPUSHUNDEF;
IoIFP(io1) = PerlIO_fdopen(fd[0], "r");
IoOFP(io1) = PerlIO_fdopen(fd[0], "w");
IoTYPE(io1) = 's';
IoIFP(io2) = PerlIO_fdopen(fd[1], "r");
IoOFP(io2) = PerlIO_fdopen(fd[1], "w");
IoTYPE(io2) = 's';
if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
if (!IoIFP(io1) && !IoOFP(io1)) PerlLIO_close(fd[0]);
if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
if (!IoIFP(io2) && !IoOFP(io2)) PerlLIO_close(fd[1]);
RETPUSHUNDEF;
}
RETPUSHYES;
#else
DIE(no_sock_func, "socketpair");
#endif
}
PP(pp_bind)
{
djSP;
#ifdef HAS_SOCKET
#ifdef MPE /* Requires PRIV mode to bind() to ports < 1024 */
extern GETPRIVMODE();
extern GETUSERMODE();
#endif
SV *addrsv = POPs;
char *addr;
GV *gv = (GV*)POPs;
register IO *io = GvIOn(gv);
STRLEN len;
int bind_ok = 0;
#ifdef MPE
int mpeprivmode = 0;
#endif
if (!io || !IoIFP(io))
goto nuts;
addr = SvPV(addrsv, len);
TAINT_PROPER("bind");
#ifdef MPE /* Deal with MPE bind() peculiarities */
if (((struct sockaddr *)addr)->sa_family == AF_INET) {
/* The address *MUST* stupidly be zero. */
((struct sockaddr_in *)addr)->sin_addr.s_addr = INADDR_ANY;
/* PRIV mode is required to bind() to ports < 1024. */
if (((struct sockaddr_in *)addr)->sin_port < 1024 &&
((struct sockaddr_in *)addr)->sin_port > 0) {
GETPRIVMODE(); /* If this fails, we are aborted by MPE/iX. */
mpeprivmode = 1;
}
}
#endif /* MPE */
if (PerlSock_bind(PerlIO_fileno(IoIFP(io)),
(struct sockaddr *)addr, len) >= 0)
bind_ok = 1;
#ifdef MPE /* Switch back to USER mode */
if (mpeprivmode)
GETUSERMODE();
#endif /* MPE */
if (bind_ok)
RETPUSHYES;
else
RETPUSHUNDEF;
nuts:
if (PL_dowarn)
warn("bind() on closed fd");
SETERRNO(EBADF,SS$_IVCHAN);
RETPUSHUNDEF;
#else
DIE(no_sock_func, "bind");
#endif
}
PP(pp_connect)
{
djSP;
#ifdef HAS_SOCKET
SV *addrsv = POPs;
char *addr;
GV *gv = (GV*)POPs;
register IO *io = GvIOn(gv);
STRLEN len;
if (!io || !IoIFP(io))
goto nuts;
addr = SvPV(addrsv, len);
TAINT_PROPER("connect");
if (PerlSock_connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
RETPUSHYES;
else
RETPUSHUNDEF;
nuts:
if (PL_dowarn)
warn("connect() on closed fd");
SETERRNO(EBADF,SS$_IVCHAN);
RETPUSHUNDEF;
#else
DIE(no_sock_func, "connect");
#endif
}
PP(pp_listen)
{
djSP;
#ifdef HAS_SOCKET
int backlog = POPi;
GV *gv = (GV*)POPs;
register IO *io = GvIOn(gv);
if (!io || !IoIFP(io))
goto nuts;
if (PerlSock_listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
RETPUSHYES;
else
RETPUSHUNDEF;
nuts:
if (PL_dowarn)
warn("listen() on closed fd");
SETERRNO(EBADF,SS$_IVCHAN);
RETPUSHUNDEF;
#else
DIE(no_sock_func, "listen");
#endif
}
PP(pp_accept)
{
djSP; dTARGET;
#ifdef HAS_SOCKET
GV *ngv;
GV *ggv;
register IO *nstio;
register IO *gstio;
struct sockaddr saddr; /* use a struct to avoid alignment problems */
Sock_size_t len = sizeof saddr;
int fd;
ggv = (GV*)POPs;
ngv = (GV*)POPs;
if (!ngv)
goto badexit;
if (!ggv)
goto nuts;
gstio = GvIO(ggv);
if (!gstio || !IoIFP(gstio))
goto nuts;
nstio = GvIOn(ngv);
if (IoIFP(nstio))
do_close(ngv, FALSE);
fd = PerlSock_accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *)&saddr, &len);
if (fd < 0)
goto badexit;
IoIFP(nstio) = PerlIO_fdopen(fd, "r");
IoOFP(nstio) = PerlIO_fdopen(fd, "w");
IoTYPE(nstio) = 's';
if (!IoIFP(nstio) || !IoOFP(nstio)) {
if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
if (!IoIFP(nstio) && !IoOFP(nstio)) PerlLIO_close(fd);
goto badexit;
}
PUSHp((char *)&saddr, len);
RETURN;
nuts:
if (PL_dowarn)
warn("accept() on closed fd");
SETERRNO(EBADF,SS$_IVCHAN);
badexit:
RETPUSHUNDEF;
#else
DIE(no_sock_func, "accept");
#endif
}
PP(pp_shutdown)
{
djSP; dTARGET;
#ifdef HAS_SOCKET
int how = POPi;
GV *gv = (GV*)POPs;
register IO *io = GvIOn(gv);
if (!io || !IoIFP(io))
goto nuts;
PUSHi( PerlSock_shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
RETURN;
nuts:
if (PL_dowarn)
warn("shutdown() on closed fd");
SETERRNO(EBADF,SS$_IVCHAN);
RETPUSHUNDEF;
#else
DIE(no_sock_func, "shutdown");
#endif
}
PP(pp_gsockopt)
{
#ifdef HAS_SOCKET
return pp_ssockopt(ARGS);
#else
DIE(no_sock_func, "getsockopt");
#endif
}
PP(pp_ssockopt)
{
djSP;
#ifdef HAS_SOCKET
int optype = PL_op->op_type;
SV *sv;
int fd;
unsigned int optname;
unsigned int lvl;
GV *gv;
register IO *io;
Sock_size_t len;
if (optype == OP_GSOCKOPT)
sv = sv_2mortal(NEWSV(22, 257));
else
sv = POPs;
optname = (unsigned int) POPi;
lvl = (unsigned int) POPi;
gv = (GV*)POPs;
io = GvIOn(gv);
if (!io || !IoIFP(io))
goto nuts;
fd = PerlIO_fileno(IoIFP(io));
switch (optype) {
case OP_GSOCKOPT:
SvGROW(sv, 257);
(void)SvPOK_only(sv);
SvCUR_set(sv,256);
*SvEND(sv) ='\0';
len = SvCUR(sv);
if (PerlSock_getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
goto nuts2;
SvCUR_set(sv, len);
*SvEND(sv) ='\0';
PUSHs(sv);
break;
case OP_SSOCKOPT: {
char *buf;
int aint;
if (SvPOKp(sv)) {
buf = SvPV(sv, PL_na);
len = PL_na;
}
else {
aint = (int)SvIV(sv);
buf = (char*)&aint;
len = sizeof(int);
}
if (PerlSock_setsockopt(fd, lvl, optname, buf, len) < 0)
goto nuts2;
PUSHs(&PL_sv_yes);
}
break;
}
RETURN;
nuts:
if (PL_dowarn)
warn("[gs]etsockopt() on closed fd");
SETERRNO(EBADF,SS$_IVCHAN);
nuts2:
RETPUSHUNDEF;
#else
DIE(no_sock_func, "setsockopt");
#endif
}
PP(pp_getsockname)
{
#ifdef HAS_SOCKET
return pp_getpeername(ARGS);
#else
DIE(no_sock_func, "getsockname");
#endif
}
PP(pp_getpeername)
{
djSP;
#ifdef HAS_SOCKET
int optype = PL_op->op_type;
SV *sv;
int fd;
GV *gv = (GV*)POPs;
register IO *io = GvIOn(gv);
Sock_size_t len;
if (!io || !IoIFP(io))
goto nuts;
sv = sv_2mortal(NEWSV(22, 257));
(void)SvPOK_only(sv);
len = 256;
SvCUR_set(sv, len);
*SvEND(sv) ='\0';
fd = PerlIO_fileno(IoIFP(io));
switch (optype) {
case OP_GETSOCKNAME:
if (PerlSock_getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
goto nuts2;
break;
case OP_GETPEERNAME:
if (PerlSock_getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
goto nuts2;
#if defined(VMS_DO_SOCKETS) && defined (DECCRTL_SOCKETS)
{
static const char nowhere[] = "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0";
/* If the call succeeded, make sure we don't have a zeroed port/addr */
if (((struct sockaddr *)SvPVX(sv))->sa_family == AF_INET &&
!memcmp((char *)SvPVX(sv) + sizeof(u_short), nowhere,
sizeof(u_short) + sizeof(struct in_addr))) {
goto nuts2;
}
}
#endif
break;
}
#ifdef BOGUS_GETNAME_RETURN
/* Interactive Unix, getpeername() and getsockname()
does not return valid namelen */
if (len == BOGUS_GETNAME_RETURN)
len = sizeof(struct sockaddr);
#endif
SvCUR_set(sv, len);
*SvEND(sv) ='\0';
PUSHs(sv);
RETURN;
nuts:
if (PL_dowarn)
warn("get{sock, peer}name() on closed fd");
SETERRNO(EBADF,SS$_IVCHAN);
nuts2:
RETPUSHUNDEF;
#else
DIE(no_sock_func, "getpeername");
#endif
}
/* Stat calls. */
PP(pp_lstat)
{
return pp_stat(ARGS);
}
PP(pp_stat)
{
djSP;
GV *tmpgv;
I32 gimme;
I32 max = 13;
if (PL_op->op_flags & OPf_REF) {
tmpgv = cGVOP->op_gv;
do_fstat:
if (tmpgv != PL_defgv) {
PL_laststype = OP_STAT;
PL_statgv = tmpgv;
sv_setpv(PL_statname, "");
PL_laststatval = (GvIO(tmpgv) && IoIFP(GvIOp(tmpgv))
? PerlLIO_fstat(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), &PL_statcache) : -1);
}
if (PL_laststatval < 0)
max = 0;
}
else {
SV* sv = POPs;
if (SvTYPE(sv) == SVt_PVGV) {
tmpgv = (GV*)sv;
goto do_fstat;
}
else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
tmpgv = (GV*)SvRV(sv);
goto do_fstat;
}
sv_setpv(PL_statname, SvPV(sv,PL_na));
PL_statgv = Nullgv;
#ifdef HAS_LSTAT
PL_laststype = PL_op->op_type;
if (PL_op->op_type == OP_LSTAT)
PL_laststatval = PerlLIO_lstat(SvPV(PL_statname, PL_na), &PL_statcache);
else
#endif
PL_laststatval = PerlLIO_stat(SvPV(PL_statname, PL_na), &PL_statcache);
if (PL_laststatval < 0) {
if (PL_dowarn && strchr(SvPV(PL_statname, PL_na), '\n'))
warn(warn_nl, "stat");
max = 0;
}
}
gimme = GIMME_V;
if (gimme != G_ARRAY) {
if (gimme != G_VOID)
XPUSHs(boolSV(max));
RETURN;
}
if (max) {
EXTEND(SP, max);
EXTEND_MORTAL(max);
PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_dev)));
PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_ino)));
PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_mode)));
PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_nlink)));
PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_uid)));
PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_gid)));
#ifdef USE_STAT_RDEV
PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_rdev)));
#else
PUSHs(sv_2mortal(newSVpv("", 0)));
#endif
PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_size)));
#ifdef BIG_TIME
PUSHs(sv_2mortal(newSVnv((U32)PL_statcache.st_atime)));
PUSHs(sv_2mortal(newSVnv((U32)PL_statcache.st_mtime)));
PUSHs(sv_2mortal(newSVnv((U32)PL_statcache.st_ctime)));
#else
PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_atime)));
PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_mtime)));
PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_ctime)));
#endif
#ifdef USE_STAT_BLOCKS
PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_blksize)));
PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_blocks)));
#else
PUSHs(sv_2mortal(newSVpv("", 0)));
PUSHs(sv_2mortal(newSVpv("", 0)));
#endif
}
RETURN;
}
PP(pp_ftrread)
{
I32 result = my_stat(ARGS);
djSP;
if (result < 0)
RETPUSHUNDEF;
if (cando(S_IRUSR, 0, &PL_statcache))
RETPUSHYES;
RETPUSHNO;
}
PP(pp_ftrwrite)
{
I32 result = my_stat(ARGS);
djSP;
if (result < 0)
RETPUSHUNDEF;
if (cando(S_IWUSR, 0, &PL_statcache))
RETPUSHYES;
RETPUSHNO;
}
PP(pp_ftrexec)
{
I32 result = my_stat(ARGS);
djSP;
if (result < 0)
RETPUSHUNDEF;
if (cando(S_IXUSR, 0, &PL_statcache))
RETPUSHYES;
RETPUSHNO;
}
PP(pp_fteread)
{
I32 result = my_stat(ARGS);
djSP;
if (result < 0)
RETPUSHUNDEF;
if (cando(S_IRUSR, 1, &PL_statcache))
RETPUSHYES;
RETPUSHNO;
}
PP(pp_ftewrite)
{
I32 result = my_stat(ARGS);
djSP;
if (result < 0)
RETPUSHUNDEF;
if (cando(S_IWUSR, 1, &PL_statcache))
RETPUSHYES;
RETPUSHNO;
}
PP(pp_fteexec)
{
I32 result = my_stat(ARGS);
djSP;
if (result < 0)
RETPUSHUNDEF;
if (cando(S_IXUSR, 1, &PL_statcache))
RETPUSHYES;
RETPUSHNO;
}
PP(pp_ftis)
{
I32 result = my_stat(ARGS);
djSP;
if (result < 0)
RETPUSHUNDEF;
RETPUSHYES;
}
PP(pp_fteowned)
{
return pp_ftrowned(ARGS);
}
PP(pp_ftrowned)
{
I32 result = my_stat(ARGS);
djSP;
if (result < 0)
RETPUSHUNDEF;
if (PL_statcache.st_uid == (PL_op->op_type == OP_FTEOWNED ? PL_euid : PL_uid) )
RETPUSHYES;
RETPUSHNO;
}
PP(pp_ftzero)
{
I32 result = my_stat(ARGS);
djSP;
if (result < 0)
RETPUSHUNDEF;
if (!PL_statcache.st_size)
RETPUSHYES;
RETPUSHNO;
}
PP(pp_ftsize)
{
I32 result = my_stat(ARGS);
djSP; dTARGET;
if (result < 0)
RETPUSHUNDEF;
PUSHi(PL_statcache.st_size);
RETURN;
}
PP(pp_ftmtime)
{
I32 result = my_stat(ARGS);
djSP; dTARGET;
if (result < 0)
RETPUSHUNDEF;
PUSHn( ((I32)PL_basetime - (I32)PL_statcache.st_mtime) / 86400.0 );
RETURN;
}
PP(pp_ftatime)
{
I32 result = my_stat(ARGS);
djSP; dTARGET;
if (result < 0)
RETPUSHUNDEF;
PUSHn( ((I32)PL_basetime - (I32)PL_statcache.st_atime) / 86400.0 );
RETURN;
}
PP(pp_ftctime)
{
I32 result = my_stat(ARGS);
djSP; dTARGET;
if (result < 0)
RETPUSHUNDEF;
PUSHn( ((I32)PL_basetime - (I32)PL_statcache.st_ctime) / 86400.0 );
RETURN;
}
PP(pp_ftsock)
{
I32 result = my_stat(ARGS);
djSP;
if (result < 0)
RETPUSHUNDEF;
if (S_ISSOCK(PL_statcache.st_mode))
RETPUSHYES;
RETPUSHNO;
}
PP(pp_ftchr)
{
I32 result = my_stat(ARGS);
djSP;
if (result < 0)
RETPUSHUNDEF;
if (S_ISCHR(PL_statcache.st_mode))
RETPUSHYES;
RETPUSHNO;
}
PP(pp_ftblk)
{
I32 result = my_stat(ARGS);
djSP;
if (result < 0)
RETPUSHUNDEF;
if (S_ISBLK(PL_statcache.st_mode))
RETPUSHYES;
RETPUSHNO;
}
PP(pp_ftfile)
{
I32 result = my_stat(ARGS);
djSP;
if (result < 0)
RETPUSHUNDEF;
if (S_ISREG(PL_statcache.st_mode))
RETPUSHYES;
RETPUSHNO;
}
PP(pp_ftdir)
{
I32 result = my_stat(ARGS);
djSP;
if (result < 0)
RETPUSHUNDEF;
if (S_ISDIR(PL_statcache.st_mode))
RETPUSHYES;
RETPUSHNO;
}
PP(pp_ftpipe)
{
I32 result = my_stat(ARGS);
djSP;
if (result < 0)
RETPUSHUNDEF;
if (S_ISFIFO(PL_statcache.st_mode))
RETPUSHYES;
RETPUSHNO;
}
PP(pp_ftlink)
{
I32 result = my_lstat(ARGS);
djSP;
if (result < 0)
RETPUSHUNDEF;
if (S_ISLNK(PL_statcache.st_mode))
RETPUSHYES;
RETPUSHNO;
}
PP(pp_ftsuid)
{
djSP;
#ifdef S_ISUID
I32 result = my_stat(ARGS);
SPAGAIN;
if (result < 0)
RETPUSHUNDEF;
if (PL_statcache.st_mode & S_ISUID)
RETPUSHYES;
#endif
RETPUSHNO;
}
PP(pp_ftsgid)
{
djSP;
#ifdef S_ISGID
I32 result = my_stat(ARGS);
SPAGAIN;
if (result < 0)
RETPUSHUNDEF;
if (PL_statcache.st_mode & S_ISGID)
RETPUSHYES;
#endif
RETPUSHNO;
}
PP(pp_ftsvtx)
{
djSP;
#ifdef S_ISVTX
I32 result = my_stat(ARGS);
SPAGAIN;
if (result < 0)
RETPUSHUNDEF;
if (PL_statcache.st_mode & S_ISVTX)
RETPUSHYES;
#endif
RETPUSHNO;
}
PP(pp_fttty)
{
djSP;
int fd;
GV *gv;
char *tmps = Nullch;
if (PL_op->op_flags & OPf_REF)
gv = cGVOP->op_gv;
else if (isGV(TOPs))
gv = (GV*)POPs;
else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
gv = (GV*)SvRV(POPs);
else
gv = gv_fetchpv(tmps = POPp, FALSE, SVt_PVIO);
if (GvIO(gv) && IoIFP(GvIOp(gv)))
fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
else if (tmps && isDIGIT(*tmps))
fd = atoi(tmps);
else
RETPUSHUNDEF;
if (PerlLIO_isatty(fd))
RETPUSHYES;
RETPUSHNO;
}
#if defined(atarist) /* this will work with atariST. Configure will
make guesses for other systems. */
# define FILE_base(f) ((f)->_base)
# define FILE_ptr(f) ((f)->_ptr)
# define FILE_cnt(f) ((f)->_cnt)
# define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
#endif
PP(pp_fttext)
{
djSP;
I32 i;
I32 len;
I32 odd = 0;
STDCHAR tbuf[512];
register STDCHAR *s;
register IO *io;
register SV *sv;
GV *gv;
if (PL_op->op_flags & OPf_REF)
gv = cGVOP->op_gv;
else if (isGV(TOPs))
gv = (GV*)POPs;
else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
gv = (GV*)SvRV(POPs);
else
gv = Nullgv;
if (gv) {
EXTEND(SP, 1);
if (gv == PL_defgv) {
if (PL_statgv)
io = GvIO(PL_statgv);
else {
sv = PL_statname;
goto really_filename;
}
}
else {
PL_statgv = gv;
PL_laststatval = -1;
sv_setpv(PL_statname, "");
io = GvIO(PL_statgv);
}
if (io && IoIFP(io)) {
if (! PerlIO_has_base(IoIFP(io)))
DIE("-T and -B not implemented on filehandles");
PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
if (PL_laststatval < 0)
RETPUSHUNDEF;
if (S_ISDIR(PL_statcache.st_mode)) /* handle NFS glitch */
if (PL_op->op_type == OP_FTTEXT)
RETPUSHNO;
else
RETPUSHYES;
if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
i = PerlIO_getc(IoIFP(io));
if (i != EOF)
(void)PerlIO_ungetc(IoIFP(io),i);
}
if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
RETPUSHYES;
len = PerlIO_get_bufsiz(IoIFP(io));
s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
/* sfio can have large buffers - limit to 512 */
if (len > 512)
len = 512;
}
else {
if (PL_dowarn)
warn("Test on unopened file <%s>",
GvENAME(cGVOP->op_gv));
SETERRNO(EBADF,RMS$_IFI);
RETPUSHUNDEF;
}
}
else {
sv = POPs;
really_filename:
PL_statgv = Nullgv;
PL_laststatval = -1;
sv_setpv(PL_statname, SvPV(sv, PL_na));
#ifdef HAS_OPEN3
i = PerlLIO_open3(SvPV(sv, PL_na), O_RDONLY, 0);
#else
i = PerlLIO_open(SvPV(sv, PL_na), 0);
#endif
if (i < 0) {
if (PL_dowarn && strchr(SvPV(sv, PL_na), '\n'))
warn(warn_nl, "open");
RETPUSHUNDEF;
}
PL_laststatval = PerlLIO_fstat(i, &PL_statcache);
if (PL_laststatval < 0)
RETPUSHUNDEF;
len = PerlLIO_read(i, tbuf, 512);
(void)PerlLIO_close(i);
if (len <= 0) {
if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT)
RETPUSHNO; /* special case NFS directories */
RETPUSHYES; /* null file is anything */
}
s = tbuf;
}
/* now scan s to look for textiness */
/* XXX ASCII dependent code */
for (i = 0; i < len; i++, s++) {
if (!*s) { /* null never allowed in text */
odd += len;
break;
}
#ifdef EBCDIC
else if (!(isPRINT(*s) || isSPACE(*s)))
odd++;
#else
else if (*s & 128)
odd++;
else if (*s < 32 &&
*s != '\n' && *s != '\r' && *s != '\b' &&
*s != '\t' && *s != '\f' && *s != 27)
odd++;
#endif
}
if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
RETPUSHNO;
else
RETPUSHYES;
}
PP(pp_ftbinary)
{
return pp_fttext(ARGS);
}
/* File calls. */
PP(pp_chdir)
{
djSP; dTARGET;
char *tmps;
SV **svp;
if (MAXARG < 1)
tmps = Nullch;
else
tmps = POPp;
if (!tmps || !*tmps) {
svp = hv_fetch(GvHVn(PL_envgv), "HOME", 4, FALSE);
if (svp)
tmps = SvPV(*svp, PL_na);
}
if (!tmps || !*tmps) {
svp = hv_fetch(GvHVn(PL_envgv), "LOGDIR", 6, FALSE);
if (svp)
tmps = SvPV(*svp, PL_na);
}
#ifdef VMS
if (!tmps || !*tmps) {
svp = hv_fetch(GvHVn(PL_envgv), "SYS$LOGIN", 9, FALSE);
if (svp)
tmps = SvPV(*svp, PL_na);
}
#endif
TAINT_PROPER("chdir");
PUSHi( PerlDir_chdir(tmps) >= 0 );
#ifdef VMS
/* Clear the DEFAULT element of ENV so we'll get the new value
* in the future. */
hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD);
#endif
RETURN;
}
PP(pp_chown)
{
djSP; dMARK; dTARGET;
I32 value;
#ifdef HAS_CHOWN
value = (I32)apply(PL_op->op_type, MARK, SP);
SP = MARK;
PUSHi(value);
RETURN;
#else
DIE(no_func, "Unsupported function chown");
#endif
}
PP(pp_chroot)
{
djSP; dTARGET;
char *tmps;
#ifdef HAS_CHROOT
tmps = POPp;
TAINT_PROPER("chroot");
PUSHi( chroot(tmps) >= 0 );
RETURN;
#else
DIE(no_func, "chroot");
#endif
}
PP(pp_unlink)
{
djSP; dMARK; dTARGET;
I32 value;
value = (I32)apply(PL_op->op_type, MARK, SP);
SP = MARK;
PUSHi(value);
RETURN;
}
PP(pp_chmod)
{
djSP; dMARK; dTARGET;
I32 value;
value = (I32)apply(PL_op->op_type, MARK, SP);
SP = MARK;
PUSHi(value);
RETURN;
}
PP(pp_utime)
{
djSP; dMARK; dTARGET;
I32 value;
value = (I32)apply(PL_op->op_type, MARK, SP);
SP = MARK;
PUSHi(value);
RETURN;
}
PP(pp_rename)
{
djSP; dTARGET;
int anum;
char *tmps2 = POPp;
char *tmps = SvPV(TOPs, PL_na);
TAINT_PROPER("rename");
#ifdef HAS_RENAME
anum = PerlLIO_rename(tmps, tmps2);
#else
if (!(anum = PerlLIO_stat(tmps, &PL_statbuf))) {
if (same_dirent(tmps2, tmps)) /* can always rename to same name */
anum = 1;
else {
if (PL_euid || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode))
(void)UNLINK(tmps2);
if (!(anum = link(tmps, tmps2)))
anum = UNLINK(tmps);
}
}
#endif
SETi( anum >= 0 );
RETURN;
}
PP(pp_link)
{
djSP; dTARGET;
#ifdef HAS_LINK
char *tmps2 = POPp;
char *tmps = SvPV(TOPs, PL_na);
TAINT_PROPER("link");
SETi( link(tmps, tmps2) >= 0 );
#else
DIE(no_func, "Unsupported function link");
#endif
RETURN;
}
PP(pp_symlink)
{
djSP; dTARGET;
#ifdef HAS_SYMLINK
char *tmps2 = POPp;
char *tmps = SvPV(TOPs, PL_na);
TAINT_PROPER("symlink");
SETi( symlink(tmps, tmps2) >= 0 );
RETURN;
#else
DIE(no_func, "symlink");
#endif
}
PP(pp_readlink)
{
djSP; dTARGET;
#ifdef HAS_SYMLINK
char *tmps;
char buf[MAXPATHLEN];
int len;
#ifndef INCOMPLETE_TAINTS
TAINT;
#endif
tmps = POPp;
len = readlink(tmps, buf, sizeof buf);
EXTEND(SP, 1);
if (len < 0)
RETPUSHUNDEF;
PUSHp(buf, len);
RETURN;
#else
EXTEND(SP, 1);
RETSETUNDEF; /* just pretend it's a normal file */
#endif
}
#if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
static int
dooneliner(cmd, filename)
char *cmd;
char *filename;
{
char *save_filename = filename;
char *cmdline;
char *s;
PerlIO *myfp;
int anum = 1;
New(666, cmdline, strlen(cmd) + (strlen(filename) * 2) + 10, char);
strcpy(cmdline, cmd);
strcat(cmdline, " ");
for (s = cmdline + strlen(cmdline); *filename; ) {
*s++ = '\\';
*s++ = *filename++;
}
strcpy(s, " 2>&1");
myfp = PerlProc_popen(cmdline, "r");
Safefree(cmdline);
if (myfp) {
SV *tmpsv = sv_newmortal();
/* Need to save/restore 'PL_rs' ?? */
s = sv_gets(tmpsv, myfp, 0);
(void)PerlProc_pclose(myfp);
if (s != Nullch) {
int e;
for (e = 1;
#ifdef HAS_SYS_ERRLIST
e <= sys_nerr
#endif
; e++)
{
/* you don't see this */
char *errmsg =
#ifdef HAS_SYS_ERRLIST
sys_errlist[e]
#else
strerror(e)
#endif
;
if (!errmsg)
break;
if (instr(s, errmsg)) {
SETERRNO(e,0);
return 0;
}
}
SETERRNO(0,0);
#ifndef EACCES
#define EACCES EPERM
#endif
if (instr(s, "cannot make"))
SETERRNO(EEXIST,RMS$_FEX);
else if (instr(s, "existing file"))
SETERRNO(EEXIST,RMS$_FEX);
else if (instr(s, "ile exists"))
SETERRNO(EEXIST,RMS$_FEX);
else if (instr(s, "non-exist"))
SETERRNO(ENOENT,RMS$_FNF);
else if (instr(s, "does not exist"))
SETERRNO(ENOENT,RMS$_FNF);
else if (instr(s, "not empty"))
SETERRNO(EBUSY,SS$_DEVOFFLINE);
else if (instr(s, "cannot access"))
SETERRNO(EACCES,RMS$_PRV);
else
SETERRNO(EPERM,RMS$_PRV);
return 0;
}
else { /* some mkdirs return no failure indication */
anum = (PerlLIO_stat(save_filename, &PL_statbuf) >= 0);
if (PL_op->op_type == OP_RMDIR)
anum = !anum;
if (anum)
SETERRNO(0,0);
else
SETERRNO(EACCES,RMS$_PRV); /* a guess */
}
return anum;
}
else
return 0;
}
#endif
PP(pp_mkdir)
{
djSP; dTARGET;
int mode = POPi;
#ifndef HAS_MKDIR
int oldumask;
#endif
char *tmps = SvPV(TOPs, PL_na);
TAINT_PROPER("mkdir");
#ifdef HAS_MKDIR
SETi( PerlDir_mkdir(tmps, mode) >= 0 );
#else
SETi( dooneliner("mkdir", tmps) );
oldumask = PerlLIO_umask(0);
PerlLIO_umask(oldumask);
PerlLIO_chmod(tmps, (mode & ~oldumask) & 0777);
#endif
RETURN;
}
PP(pp_rmdir)
{
djSP; dTARGET;
char *tmps;
tmps = POPp;
TAINT_PROPER("rmdir");
#ifdef HAS_RMDIR
XPUSHi( PerlDir_rmdir(tmps) >= 0 );
#else
XPUSHi( dooneliner("rmdir", tmps) );
#endif
RETURN;
}
/* Directory calls. */
PP(pp_open_dir)
{
djSP;
#if defined(Direntry_t) && defined(HAS_READDIR)
char *dirname = POPp;
GV *gv = (GV*)POPs;
register IO *io = GvIOn(gv);
if (!io)
goto nope;
if (IoDIRP(io))
PerlDir_close(IoDIRP(io));
if (!(IoDIRP(io) = PerlDir_open(dirname)))
goto nope;
RETPUSHYES;
nope:
if (!errno)
SETERRNO(EBADF,RMS$_DIR);
RETPUSHUNDEF;
#else
DIE(no_dir_func, "opendir");
#endif
}
PP(pp_readdir)
{
djSP;
#if defined(Direntry_t) && defined(HAS_READDIR)
#ifndef I_DIRENT
Direntry_t *readdir _((DIR *));
#endif
register Direntry_t *dp;
GV *gv = (GV*)POPs;
register IO *io = GvIOn(gv);
SV *sv;
if (!io || !IoDIRP(io))
goto nope;
if (GIMME == G_ARRAY) {
/*SUPPRESS 560*/
while (dp = (Direntry_t *)PerlDir_read(IoDIRP(io))) {
#ifdef DIRNAMLEN
sv = newSVpv(dp->d_name, dp->d_namlen);
#else
sv = newSVpv(dp->d_name, 0);
#endif
#ifndef INCOMPLETE_TAINTS
SvTAINTED_on(sv);
#endif
XPUSHs(sv_2mortal(sv));
}
}
else {
if (!(dp = (Direntry_t *)PerlDir_read(IoDIRP(io))))
goto nope;
#ifdef DIRNAMLEN
sv = newSVpv(dp->d_name, dp->d_namlen);
#else
sv = newSVpv(dp->d_name, 0);
#endif
#ifndef INCOMPLETE_TAINTS
SvTAINTED_on(sv);
#endif
XPUSHs(sv_2mortal(sv));
}
RETURN;
nope:
if (!errno)
SETERRNO(EBADF,RMS$_ISI);
if (GIMME == G_ARRAY)
RETURN;
else
RETPUSHUNDEF;
#else
DIE(no_dir_func, "readdir");
#endif
}
PP(pp_telldir)
{
djSP; dTARGET;
#if defined(HAS_TELLDIR) || defined(telldir)
# ifdef NEED_TELLDIR_PROTO /* XXX does _anyone_ need this? --AD 2/20/1998 */
long telldir _((DIR *));
# endif
GV *gv = (GV*)POPs;
register IO *io = GvIOn(gv);
if (!io || !IoDIRP(io))
goto nope;
PUSHi( PerlDir_tell(IoDIRP(io)) );
RETURN;
nope:
if (!errno)
SETERRNO(EBADF,RMS$_ISI);
RETPUSHUNDEF;
#else
DIE(no_dir_func, "telldir");
#endif
}
PP(pp_seekdir)
{
djSP;
#if defined(HAS_SEEKDIR) || defined(seekdir)
long along = POPl;
GV *gv = (GV*)POPs;
register IO *io = GvIOn(gv);
if (!io || !IoDIRP(io))
goto nope;
(void)PerlDir_seek(IoDIRP(io), along);
RETPUSHYES;
nope:
if (!errno)
SETERRNO(EBADF,RMS$_ISI);
RETPUSHUNDEF;
#else
DIE(no_dir_func, "seekdir");
#endif
}
PP(pp_rewinddir)
{
djSP;
#if defined(HAS_REWINDDIR) || defined(rewinddir)
GV *gv = (GV*)POPs;
register IO *io = GvIOn(gv);
if (!io || !IoDIRP(io))
goto nope;
(void)PerlDir_rewind(IoDIRP(io));
RETPUSHYES;
nope:
if (!errno)
SETERRNO(EBADF,RMS$_ISI);
RETPUSHUNDEF;
#else
DIE(no_dir_func, "rewinddir");
#endif
}
PP(pp_closedir)
{
djSP;
#if defined(Direntry_t) && defined(HAS_READDIR)
GV *gv = (GV*)POPs;
register IO *io = GvIOn(gv);
if (!io || !IoDIRP(io))
goto nope;
#ifdef VOID_CLOSEDIR
PerlDir_close(IoDIRP(io));
#else
if (PerlDir_close(IoDIRP(io)) < 0) {
IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
goto nope;
}
#endif
IoDIRP(io) = 0;
RETPUSHYES;
nope:
if (!errno)
SETERRNO(EBADF,RMS$_IFI);
RETPUSHUNDEF;
#else
DIE(no_dir_func, "closedir");
#endif
}
/* Process control. */
PP(pp_fork)
{
#ifdef HAS_FORK
djSP; dTARGET;
int childpid;
GV *tmpgv;
EXTEND(SP, 1);
childpid = fork();
if (childpid < 0)
RETSETUNDEF;
if (!childpid) {
/*SUPPRESS 560*/
if (tmpgv = gv_fetchpv("$", TRUE, SVt_PV))
sv_setiv(GvSV(tmpgv), (IV)getpid());
hv_clear(PL_pidstatus); /* no kids, so don't wait for 'em */
}
PUSHi(childpid);
RETURN;
#else
DIE(no_func, "Unsupported function fork");
#endif
}
PP(pp_wait)
{
#if !defined(DOSISH) || defined(OS2) || defined(WIN32)
djSP; dTARGET;
int childpid;
int argflags;
childpid = wait4pid(-1, &argflags, 0);
STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
XPUSHi(childpid);
RETURN;
#else
DIE(no_func, "Unsupported function wait");
#endif
}
PP(pp_waitpid)
{
#if !defined(DOSISH) || defined(OS2) || defined(WIN32)
djSP; dTARGET;
int childpid;
int optype;
int argflags;
optype = POPi;
childpid = TOPi;
childpid = wait4pid(childpid, &argflags, optype);
STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
SETi(childpid);
RETURN;
#else
DIE(no_func, "Unsupported function waitpid");
#endif
}
PP(pp_system)
{
djSP; dMARK; dORIGMARK; dTARGET;
I32 value;
int childpid;
int result;
int status;
Sigsave_t ihand,qhand; /* place to save signals during system() */
if (SP - MARK == 1) {
if (PL_tainting) {
char *junk = SvPV(TOPs, PL_na);
TAINT_ENV();
TAINT_PROPER("system");
}
}
#if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2)
while ((childpid = vfork()) == -1) {
if (errno != EAGAIN) {
value = -1;
SP = ORIGMARK;
PUSHi(value);
RETURN;
}
sleep(5);
}
if (childpid > 0) {
rsignal_save(SIGINT, SIG_IGN, &ihand);
rsignal_save(SIGQUIT, SIG_IGN, &qhand);
do {
result = wait4pid(childpid, &status, 0);
} while (result == -1 && errno == EINTR);
(void)rsignal_restore(SIGINT, &ihand);
(void)rsignal_restore(SIGQUIT, &qhand);
STATUS_NATIVE_SET(result == -1 ? -1 : status);
do_execfree(); /* free any memory child malloced on vfork */
SP = ORIGMARK;
PUSHi(STATUS_CURRENT);
RETURN;
}
if (PL_op->op_flags & OPf_STACKED) {
SV *really = *++MARK;
value = (I32)do_aexec(really, MARK, SP);
}
else if (SP - MARK != 1)
value = (I32)do_aexec(Nullsv, MARK, SP);
else {
value = (I32)do_exec(SvPVx(sv_mortalcopy(*SP), PL_na));
}
PerlProc__exit(-1);
#else /* ! FORK or VMS or OS/2 */
if (PL_op->op_flags & OPf_STACKED) {
SV *really = *++MARK;
value = (I32)do_aspawn(really, (void **)MARK, (void **)SP);
}
else if (SP - MARK != 1)
value = (I32)do_aspawn(Nullsv, (void **)MARK, (void **)SP);
else {
value = (I32)do_spawn(SvPVx(sv_mortalcopy(*SP), PL_na));
}
STATUS_NATIVE_SET(value);
do_execfree();
SP = ORIGMARK;
PUSHi(STATUS_CURRENT);
#endif /* !FORK or VMS */
RETURN;
}
PP(pp_exec)
{
djSP; dMARK; dORIGMARK; dTARGET;
I32 value;
if (PL_op->op_flags & OPf_STACKED) {
SV *really = *++MARK;
value = (I32)do_aexec(really, MARK, SP);
}
else if (SP - MARK != 1)
#ifdef VMS
value = (I32)vms_do_aexec(Nullsv, MARK, SP);
#else
value = (I32)do_aexec(Nullsv, MARK, SP);
#endif
else {
if (PL_tainting) {
char *junk = SvPV(*SP, PL_na);
TAINT_ENV();
TAINT_PROPER("exec");
}
#ifdef VMS
value = (I32)vms_do_exec(SvPVx(sv_mortalcopy(*SP), PL_na));
#else
value = (I32)do_exec(SvPVx(sv_mortalcopy(*SP), PL_na));
#endif
}
SP = ORIGMARK;
PUSHi(value);
RETURN;
}
PP(pp_kill)
{
djSP; dMARK; dTARGET;
I32 value;
#ifdef HAS_KILL
value = (I32)apply(PL_op->op_type, MARK, SP);
SP = MARK;
PUSHi(value);
RETURN;
#else
DIE(no_func, "Unsupported function kill");
#endif
}
PP(pp_getppid)
{
#ifdef HAS_GETPPID
djSP; dTARGET;
XPUSHi( getppid() );
RETURN;
#else
DIE(no_func, "getppid");
#endif
}
PP(pp_getpgrp)
{
#ifdef HAS_GETPGRP
djSP; dTARGET;
int pid;
I32 value;
if (MAXARG < 1)
pid = 0;
else
pid = SvIVx(POPs);
#ifdef BSD_GETPGRP
value = (I32)BSD_GETPGRP(pid);
#else
if (pid != 0 && pid != getpid())
DIE("POSIX getpgrp can't take an argument");
value = (I32)getpgrp();
#endif
XPUSHi(value);
RETURN;
#else
DIE(no_func, "getpgrp()");
#endif
}
PP(pp_setpgrp)
{
#ifdef HAS_SETPGRP
djSP; dTARGET;
int pgrp;
int pid;
if (MAXARG < 2) {
pgrp = 0;
pid = 0;
}
else {
pgrp = POPi;
pid = TOPi;
}
TAINT_PROPER("setpgrp");
#ifdef BSD_SETPGRP
SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
#else
if ((pgrp != 0 && pgrp != getpid()) || (pid != 0 && pid != getpid()))
DIE("POSIX setpgrp can't take an argument");
SETi( setpgrp() >= 0 );
#endif /* USE_BSDPGRP */
RETURN;
#else
DIE(no_func, "setpgrp()");
#endif
}
PP(pp_getpriority)
{
djSP; dTARGET;
int which;
int who;
#ifdef HAS_GETPRIORITY
who = POPi;
which = TOPi;
SETi( getpriority(which, who) );
RETURN;
#else
DIE(no_func, "getpriority()");
#endif
}
PP(pp_setpriority)
{
djSP; dTARGET;
int which;
int who;
int niceval;
#ifdef HAS_SETPRIORITY
niceval = POPi;
who = POPi;
which = TOPi;
TAINT_PROPER("setpriority");
SETi( setpriority(which, who, niceval) >= 0 );
RETURN;
#else
DIE(no_func, "setpriority()");
#endif
}
/* Time calls. */
PP(pp_time)
{
djSP; dTARGET;
#ifdef BIG_TIME
XPUSHn( time(Null(Time_t*)) );
#else
XPUSHi( time(Null(Time_t*)) );
#endif
RETURN;
}
/* XXX The POSIX name is CLK_TCK; it is to be preferred
to HZ. Probably. For now, assume that if the system
defines HZ, it does so correctly. (Will this break
on VMS?)
Probably we ought to use _sysconf(_SC_CLK_TCK), if
it's supported. --AD 9/96.
*/
#ifndef HZ
# ifdef CLK_TCK
# define HZ CLK_TCK
# else
# define HZ 60
# endif
#endif
PP(pp_tms)
{
djSP;
#ifndef HAS_TIMES
DIE("times not implemented");
#else
EXTEND(SP, 4);
#ifndef VMS
(void)PerlProc_times(&PL_timesbuf);
#else
(void)PerlProc_times((tbuffer_t *)&PL_timesbuf); /* time.h uses different name for */
/* struct tms, though same data */
/* is returned. */
#endif
PUSHs(sv_2mortal(newSVnv(((double)PL_timesbuf.tms_utime)/HZ)));
if (GIMME == G_ARRAY) {
PUSHs(sv_2mortal(newSVnv(((double)PL_timesbuf.tms_stime)/HZ)));
PUSHs(sv_2mortal(newSVnv(((double)PL_timesbuf.tms_cutime)/HZ)));
PUSHs(sv_2mortal(newSVnv(((double)PL_timesbuf.tms_cstime)/HZ)));
}
RETURN;
#endif /* HAS_TIMES */
}
PP(pp_localtime)
{
return pp_gmtime(ARGS);
}
PP(pp_gmtime)
{
djSP;
Time_t when;
struct tm *tmbuf;
static char *dayname[] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
static char *monname[] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
"Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
if (MAXARG < 1)
(void)time(&when);
else
#ifdef BIG_TIME
when = (Time_t)SvNVx(POPs);
#else
when = (Time_t)SvIVx(POPs);
#endif
if (PL_op->op_type == OP_LOCALTIME)
tmbuf = localtime(&when);
else
tmbuf = gmtime(&when);
EXTEND(SP, 9);
EXTEND_MORTAL(9);
if (GIMME != G_ARRAY) {
dTARGET;
SV *tsv;
if (!tmbuf)
RETPUSHUNDEF;
tsv = newSVpvf("%s %s %2d %02d:%02d:%02d %d",
dayname[tmbuf->tm_wday],
monname[tmbuf->tm_mon],
tmbuf->tm_mday,
tmbuf->tm_hour,
tmbuf->tm_min,
tmbuf->tm_sec,
tmbuf->tm_year + 1900);
PUSHs(sv_2mortal(tsv));
}
else if (tmbuf) {
PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_sec)));
PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_min)));
PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_hour)));
PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_mday)));
PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_mon)));
PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_year)));
PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_wday)));
PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_yday)));
PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_isdst)));
}
RETURN;
}
PP(pp_alarm)
{
djSP; dTARGET;
int anum;
#ifdef HAS_ALARM
anum = POPi;
anum = alarm((unsigned int)anum);
EXTEND(SP, 1);
if (anum < 0)
RETPUSHUNDEF;
PUSHi((I32)anum);
RETURN;
#else
DIE(no_func, "Unsupported function alarm");
#endif
}
PP(pp_sleep)
{
djSP; dTARGET;
I32 duration;
Time_t lasttime;
Time_t when;
(void)time(&lasttime);
if (MAXARG < 1)
PerlProc_pause();
else {
duration = POPi;
PerlProc_sleep((unsigned int)duration);
}
(void)time(&when);
XPUSHi(when - lasttime);
RETURN;
}
/* Shared memory. */
PP(pp_shmget)
{
return pp_semget(ARGS);
}
PP(pp_shmctl)
{
return pp_semctl(ARGS);
}
PP(pp_shmread)
{
return pp_shmwrite(ARGS);
}
PP(pp_shmwrite)
{
#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
djSP; dMARK; dTARGET;
I32 value = (I32)(do_shmio(PL_op->op_type, MARK, SP) >= 0);
SP = MARK;
PUSHi(value);
RETURN;
#else
return pp_semget(ARGS);
#endif
}
/* Message passing. */
PP(pp_msgget)
{
return pp_semget(ARGS);
}
PP(pp_msgctl)
{
return pp_semctl(ARGS);
}
PP(pp_msgsnd)
{
#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
djSP; dMARK; dTARGET;
I32 value = (I32)(do_msgsnd(MARK, SP) >= 0);
SP = MARK;
PUSHi(value);
RETURN;
#else
return pp_semget(ARGS);
#endif
}
PP(pp_msgrcv)
{
#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
djSP; dMARK; dTARGET;
I32 value = (I32)(do_msgrcv(MARK, SP) >= 0);
SP = MARK;
PUSHi(value);
RETURN;
#else
return pp_semget(ARGS);
#endif
}
/* Semaphores. */
PP(pp_semget)
{
#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
djSP; dMARK; dTARGET;
int anum = do_ipcget(PL_op->op_type, MARK, SP);
SP = MARK;
if (anum == -1)
RETPUSHUNDEF;
PUSHi(anum);
RETURN;
#else
DIE("System V IPC is not implemented on this machine");
#endif
}
PP(pp_semctl)
{
#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
djSP; dMARK; dTARGET;
int anum = do_ipcctl(PL_op->op_type, MARK, SP);
SP = MARK;
if (anum == -1)
RETSETUNDEF;
if (anum != 0) {
PUSHi(anum);
}
else {
PUSHp(zero_but_true, ZBTLEN);
}
RETURN;
#else
return pp_semget(ARGS);
#endif
}
PP(pp_semop)
{
#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
djSP; dMARK; dTARGET;
I32 value = (I32)(do_semop(MARK, SP) >= 0);
SP = MARK;
PUSHi(value);
RETURN;
#else
return pp_semget(ARGS);
#endif
}
/* Get system info. */
PP(pp_ghbyname)
{
#ifdef HAS_GETHOSTBYNAME
return pp_ghostent(ARGS);
#else
DIE(no_sock_func, "gethostbyname");
#endif
}
PP(pp_ghbyaddr)
{
#ifdef HAS_GETHOSTBYADDR
return pp_ghostent(ARGS);
#else
DIE(no_sock_func, "gethostbyaddr");
#endif
}
PP(pp_ghostent)
{
djSP;
#if defined(HAS_GETHOSTBYNAME) || defined(HAS_GETHOSTBYADDR) || defined(HAS_GETHOSTENT)
I32 which = PL_op->op_type;
register char **elem;
register SV *sv;
#ifndef HAS_GETHOST_PROTOS /* XXX Do we need individual probes? */
struct hostent *PerlSock_gethostbyaddr(Netdb_host_t, Netdb_hlen_t, int);
struct hostent *PerlSock_gethostbyname(Netdb_name_t);
struct hostent *PerlSock_gethostent(void);
#endif
struct hostent *hent;
unsigned long len;
EXTEND(SP, 10);
if (which == OP_GHBYNAME)
#ifdef HAS_GETHOSTBYNAME
hent = PerlSock_gethostbyname(POPp);
#else
DIE(no_sock_func, "gethostbyname");
#endif
else if (which == OP_GHBYADDR) {
#ifdef HAS_GETHOSTBYADDR
int addrtype = POPi;
SV *addrsv = POPs;
STRLEN addrlen;
Netdb_host_t addr = (Netdb_host_t) SvPV(addrsv, addrlen);
hent = PerlSock_gethostbyaddr(addr, (Netdb_hlen_t) addrlen, addrtype);
#else
DIE(no_sock_func, "gethostbyaddr");
#endif
}
else
#ifdef HAS_GETHOSTENT
hent = PerlSock_gethostent();
#else
DIE(no_sock_func, "gethostent");
#endif
#ifdef HOST_NOT_FOUND
if (!hent)
STATUS_NATIVE_SET(h_errno);
#endif
if (GIMME != G_ARRAY) {
PUSHs(sv = sv_newmortal());
if (hent) {
if (which == OP_GHBYNAME) {
if (hent->h_addr)
sv_setpvn(sv, hent->h_addr, hent->h_length);
}
else
sv_setpv(sv, (char*)hent->h_name);
}
RETURN;
}
if (hent) {
PUSHs(sv = sv_mortalcopy(&PL_sv_no));
sv_setpv(sv, (char*)hent->h_name);
PUSHs(sv = sv_mortalcopy(&PL_sv_no));
for (elem = hent->h_aliases; elem && *elem; elem++) {
sv_catpv(sv, *elem);
if (elem[1])
sv_catpvn(sv, " ", 1);
}
PUSHs(sv = sv_mortalcopy(&PL_sv_no));
sv_setiv(sv, (IV)hent->h_addrtype);
PUSHs(sv = sv_mortalcopy(&PL_sv_no));
len = hent->h_length;
sv_setiv(sv, (IV)len);
#ifdef h_addr
for (elem = hent->h_addr_list; elem && *elem; elem++) {
XPUSHs(sv = sv_mortalcopy(&PL_sv_no));
sv_setpvn(sv, *elem, len);
}
#else
PUSHs(sv = sv_mortalcopy(&PL_sv_no));
if (hent->h_addr)
sv_setpvn(sv, hent->h_addr, len);
#endif /* h_addr */
}
RETURN;
#else
DIE(no_sock_func, "gethostent");
#endif
}
PP(pp_gnbyname)
{
#ifdef HAS_GETNETBYNAME
return pp_gnetent(ARGS);
#else
DIE(no_sock_func, "getnetbyname");
#endif
}
PP(pp_gnbyaddr)
{
#ifdef HAS_GETNETBYADDR
return pp_gnetent(ARGS);
#else
DIE(no_sock_func, "getnetbyaddr");
#endif
}
PP(pp_gnetent)
{
djSP;
#if defined(HAS_GETNETBYNAME) || defined(HAS_GETNETBYADDR) || defined(HAS_GETNETENT)
I32 which = PL_op->op_type;
register char **elem;
register SV *sv;
#ifndef HAS_GETNET_PROTOS /* XXX Do we need individual probes? */
struct netent *PerlSock_getnetbyaddr(Netdb_net_t, int);
struct netent *PerlSock_getnetbyname(Netdb_name_t);
struct netent *PerlSock_getnetent(void);
#endif
struct netent *nent;
if (which == OP_GNBYNAME)
#ifdef HAS_GETNETBYNAME
nent = PerlSock_getnetbyname(POPp);
#else
DIE(no_sock_func, "getnetbyname");
#endif
else if (which == OP_GNBYADDR) {
#ifdef HAS_GETNETBYADDR
int addrtype = POPi;
Netdb_net_t addr = (Netdb_net_t) U_L(POPn);
nent = PerlSock_getnetbyaddr(addr, addrtype);
#else
DIE(no_sock_func, "getnetbyaddr");
#endif
}
else
#ifdef HAS_GETNETENT
nent = PerlSock_getnetent();
#else
DIE(no_sock_func, "getnetent");
#endif
EXTEND(SP, 4);
if (GIMME != G_ARRAY) {
PUSHs(sv = sv_newmortal());
if (nent) {
if (which == OP_GNBYNAME)
sv_setiv(sv, (IV)nent->n_net);
else
sv_setpv(sv, nent->n_name);
}
RETURN;
}
if (nent) {
PUSHs(sv = sv_mortalcopy(&PL_sv_no));
sv_setpv(sv, nent->n_name);
PUSHs(sv = sv_mortalcopy(&PL_sv_no));
for (elem = nent->n_aliases; elem && *elem; elem++) {
sv_catpv(sv, *elem);
if (elem[1])
sv_catpvn(sv, " ", 1);
}
PUSHs(sv = sv_mortalcopy(&PL_sv_no));
sv_setiv(sv, (IV)nent->n_addrtype);
PUSHs(sv = sv_mortalcopy(&PL_sv_no));
sv_setiv(sv, (IV)nent->n_net);
}
RETURN;
#else
DIE(no_sock_func, "getnetent");
#endif
}
PP(pp_gpbyname)
{
#ifdef HAS_GETPROTOBYNAME
return pp_gprotoent(ARGS);
#else
DIE(no_sock_func, "getprotobyname");
#endif
}
PP(pp_gpbynumber)
{
#ifdef HAS_GETPROTOBYNUMBER
return pp_gprotoent(ARGS);
#else
DIE(no_sock_func, "getprotobynumber");
#endif
}
PP(pp_gprotoent)
{
djSP;
#if defined(HAS_GETPROTOBYNAME) || defined(HAS_GETPROTOBYNUMBER) || defined(HAS_GETPROTOENT)
I32 which = PL_op->op_type;
register char **elem;
register SV *sv;
#ifndef HAS_GETPROTO_PROTOS /* XXX Do we need individual probes? */
struct protoent *PerlSock_getprotobyname(Netdb_name_t);
struct protoent *PerlSock_getprotobynumber(int);
struct protoent *PerlSock_getprotoent(void);
#endif
struct protoent *pent;
if (which == OP_GPBYNAME)
#ifdef HAS_GETPROTOBYNAME
pent = PerlSock_getprotobyname(POPp);
#else
DIE(no_sock_func, "getprotobyname");
#endif
else if (which == OP_GPBYNUMBER)
#ifdef HAS_GETPROTOBYNUMBER
pent = PerlSock_getprotobynumber(POPi);
#else
DIE(no_sock_func, "getprotobynumber");
#endif
else
#ifdef HAS_GETPROTOENT
pent = PerlSock_getprotoent();
#else
DIE(no_sock_func, "getprotoent");
#endif
EXTEND(SP, 3);
if (GIMME != G_ARRAY) {
PUSHs(sv = sv_newmortal());
if (pent) {
if (which == OP_GPBYNAME)
sv_setiv(sv, (IV)pent->p_proto);
else
sv_setpv(sv, pent->p_name);
}
RETURN;
}
if (pent) {
PUSHs(sv = sv_mortalcopy(&PL_sv_no));
sv_setpv(sv, pent->p_name);
PUSHs(sv = sv_mortalcopy(&PL_sv_no));
for (elem = pent->p_aliases; elem && *elem; elem++) {
sv_catpv(sv, *elem);
if (elem[1])
sv_catpvn(sv, " ", 1);
}
PUSHs(sv = sv_mortalcopy(&PL_sv_no));
sv_setiv(sv, (IV)pent->p_proto);
}
RETURN;
#else
DIE(no_sock_func, "getprotoent");
#endif
}
PP(pp_gsbyname)
{
#ifdef HAS_GETSERVBYNAME
return pp_gservent(ARGS);
#else
DIE(no_sock_func, "getservbyname");
#endif
}
PP(pp_gsbyport)
{
#ifdef HAS_GETSERVBYPORT
return pp_gservent(ARGS);
#else
DIE(no_sock_func, "getservbyport");
#endif
}
PP(pp_gservent)
{
djSP;
#if defined(HAS_GETSERVBYNAME) || defined(HAS_GETSERVBYPORT) || defined(HAS_GETSERVENT)
I32 which = PL_op->op_type;
register char **elem;
register SV *sv;
#ifndef HAS_GETSERV_PROTOS /* XXX Do we need individual probes? */
struct servent *PerlSock_getservbyname(Netdb_name_t, Netdb_name_t);
struct servent *PerlSock_getservbyport(int, Netdb_name_t);
struct servent *PerlSock_getservent(void);
#endif
struct servent *sent;
if (which == OP_GSBYNAME) {
#ifdef HAS_GETSERVBYNAME
char *proto = POPp;
char *name = POPp;
if (proto && !*proto)
proto = Nullch;
sent = PerlSock_getservbyname(name, proto);
#else
DIE(no_sock_func, "getservbyname");
#endif
}
else if (which == OP_GSBYPORT) {
#ifdef HAS_GETSERVBYPORT
char *proto = POPp;
unsigned short port = POPu;
#ifdef HAS_HTONS
port = PerlSock_htons(port);
#endif
sent = PerlSock_getservbyport(port, proto);
#else
DIE(no_sock_func, "getservbyport");
#endif
}
else
#ifdef HAS_GETSERVENT
sent = PerlSock_getservent();
#else
DIE(no_sock_func, "getservent");
#endif
EXTEND(SP, 4);
if (GIMME != G_ARRAY) {
PUSHs(sv = sv_newmortal());
if (sent) {
if (which == OP_GSBYNAME) {
#ifdef HAS_NTOHS
sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
#else
sv_setiv(sv, (IV)(sent->s_port));
#endif
}
else
sv_setpv(sv, sent->s_name);
}
RETURN;
}
if (sent) {
PUSHs(sv = sv_mortalcopy(&PL_sv_no));
sv_setpv(sv, sent->s_name);
PUSHs(sv = sv_mortalcopy(&PL_sv_no));
for (elem = sent->s_aliases; elem && *elem; elem++) {
sv_catpv(sv, *elem);
if (elem[1])
sv_catpvn(sv, " ", 1);
}
PUSHs(sv = sv_mortalcopy(&PL_sv_no));
#ifdef HAS_NTOHS
sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
#else
sv_setiv(sv, (IV)(sent->s_port));
#endif
PUSHs(sv = sv_mortalcopy(&PL_sv_no));
sv_setpv(sv, sent->s_proto);
}
RETURN;
#else
DIE(no_sock_func, "getservent");
#endif
}
PP(pp_shostent)
{
djSP;
#ifdef HAS_SETHOSTENT
PerlSock_sethostent(TOPi);
RETSETYES;
#else
DIE(no_sock_func, "sethostent");
#endif
}
PP(pp_snetent)
{
djSP;
#ifdef HAS_SETNETENT
PerlSock_setnetent(TOPi);
RETSETYES;
#else
DIE(no_sock_func, "setnetent");
#endif
}
PP(pp_sprotoent)
{
djSP;
#ifdef HAS_SETPROTOENT
PerlSock_setprotoent(TOPi);
RETSETYES;
#else
DIE(no_sock_func, "setprotoent");
#endif
}
PP(pp_sservent)
{
djSP;
#ifdef HAS_SETSERVENT
PerlSock_setservent(TOPi);
RETSETYES;
#else
DIE(no_sock_func, "setservent");
#endif
}
PP(pp_ehostent)
{
djSP;
#ifdef HAS_ENDHOSTENT
PerlSock_endhostent();
EXTEND(SP,1);
RETPUSHYES;
#else
DIE(no_sock_func, "endhostent");
#endif
}
PP(pp_enetent)
{
djSP;
#ifdef HAS_ENDNETENT
PerlSock_endnetent();
EXTEND(SP,1);
RETPUSHYES;
#else
DIE(no_sock_func, "endnetent");
#endif
}
PP(pp_eprotoent)
{
djSP;
#ifdef HAS_ENDPROTOENT
PerlSock_endprotoent();
EXTEND(SP,1);
RETPUSHYES;
#else
DIE(no_sock_func, "endprotoent");
#endif
}
PP(pp_eservent)
{
djSP;
#ifdef HAS_ENDSERVENT
PerlSock_endservent();
EXTEND(SP,1);
RETPUSHYES;
#else
DIE(no_sock_func, "endservent");
#endif
}
PP(pp_gpwnam)
{
#ifdef HAS_PASSWD
return pp_gpwent(ARGS);
#else
DIE(no_func, "getpwnam");
#endif
}
PP(pp_gpwuid)
{
#ifdef HAS_PASSWD
return pp_gpwent(ARGS);
#else
DIE(no_func, "getpwuid");
#endif
}
PP(pp_gpwent)
{
djSP;
#if defined(HAS_PASSWD) && defined(HAS_GETPWENT)
I32 which = PL_op->op_type;
register SV *sv;
struct passwd *pwent;
if (which == OP_GPWNAM)
pwent = getpwnam(POPp);
else if (which == OP_GPWUID)
pwent = getpwuid(POPi);
else
pwent = (struct passwd *)getpwent();
EXTEND(SP, 10);
if (GIMME != G_ARRAY) {
PUSHs(sv = sv_newmortal());
if (pwent) {
if (which == OP_GPWNAM)
sv_setiv(sv, (IV)pwent->pw_uid);
else
sv_setpv(sv, pwent->pw_name);
}
RETURN;
}
if (pwent) {
PUSHs(sv = sv_mortalcopy(&PL_sv_no));
sv_setpv(sv, pwent->pw_name);
PUSHs(sv = sv_mortalcopy(&PL_sv_no));
#ifdef PWPASSWD
sv_setpv(sv, pwent->pw_passwd);
#endif
PUSHs(sv = sv_mortalcopy(&PL_sv_no));
sv_setiv(sv, (IV)pwent->pw_uid);
PUSHs(sv = sv_mortalcopy(&PL_sv_no));
sv_setiv(sv, (IV)pwent->pw_gid);
/* pw_change, pw_quota, and pw_age are mutually exclusive. */
PUSHs(sv = sv_mortalcopy(&PL_sv_no));
#ifdef PWCHANGE
sv_setiv(sv, (IV)pwent->pw_change);
#else
# ifdef PWQUOTA
sv_setiv(sv, (IV)pwent->pw_quota);
# else
# ifdef PWAGE
sv_setpv(sv, pwent->pw_age);
# endif
# endif
#endif
/* pw_class and pw_comment are mutually exclusive. */
PUSHs(sv = sv_mortalcopy(&PL_sv_no));
#ifdef PWCLASS
sv_setpv(sv, pwent->pw_class);
#else
# ifdef PWCOMMENT
sv_setpv(sv, pwent->pw_comment);
# endif
#endif
PUSHs(sv = sv_mortalcopy(&PL_sv_no));
#ifdef PWGECOS
sv_setpv(sv, pwent->pw_gecos);
#endif
#ifndef INCOMPLETE_TAINTS
/* pw_gecos is tainted because user himself can diddle with it. */
SvTAINTED_on(sv);
#endif
PUSHs(sv = sv_mortalcopy(&PL_sv_no));
sv_setpv(sv, pwent->pw_dir);
PUSHs(sv = sv_mortalcopy(&PL_sv_no));
sv_setpv(sv, pwent->pw_shell);
#ifdef PWEXPIRE
PUSHs(sv = sv_mortalcopy(&PL_sv_no));
sv_setiv(sv, (IV)pwent->pw_expire);
#endif
}
RETURN;
#else
DIE(no_func, "getpwent");
#endif
}
PP(pp_spwent)
{
djSP;
#if defined(HAS_PASSWD) && defined(HAS_SETPWENT) && !defined(CYGWIN32)
setpwent();
RETPUSHYES;
#else
DIE(no_func, "setpwent");
#endif
}
PP(pp_epwent)
{
djSP;
#if defined(HAS_PASSWD) && defined(HAS_ENDPWENT)
endpwent();
RETPUSHYES;
#else
DIE(no_func, "endpwent");
#endif
}
PP(pp_ggrnam)
{
#ifdef HAS_GROUP
return pp_ggrent(ARGS);
#else
DIE(no_func, "getgrnam");
#endif
}
PP(pp_ggrgid)
{
#ifdef HAS_GROUP
return pp_ggrent(ARGS);
#else
DIE(no_func, "getgrgid");
#endif
}
PP(pp_ggrent)
{
djSP;
#if defined(HAS_GROUP) && defined(HAS_GETGRENT)
I32 which = PL_op->op_type;
register char **elem;
register SV *sv;
struct group *grent;
if (which == OP_GGRNAM)
grent = (struct group *)getgrnam(POPp);
else if (which == OP_GGRGID)
grent = (struct group *)getgrgid(POPi);
else
grent = (struct group *)getgrent();
EXTEND(SP, 4);
if (GIMME != G_ARRAY) {
PUSHs(sv = sv_newmortal());
if (grent) {
if (which == OP_GGRNAM)
sv_setiv(sv, (IV)grent->gr_gid);
else
sv_setpv(sv, grent->gr_name);
}
RETURN;
}
if (grent) {
PUSHs(sv = sv_mortalcopy(&PL_sv_no));
sv_setpv(sv, grent->gr_name);
PUSHs(sv = sv_mortalcopy(&PL_sv_no));
#ifdef GRPASSWD
sv_setpv(sv, grent->gr_passwd);
#endif
PUSHs(sv = sv_mortalcopy(&PL_sv_no));
sv_setiv(sv, (IV)grent->gr_gid);
PUSHs(sv = sv_mortalcopy(&PL_sv_no));
for (elem = grent->gr_mem; elem && *elem; elem++) {
sv_catpv(sv, *elem);
if (elem[1])
sv_catpvn(sv, " ", 1);
}
}
RETURN;
#else
DIE(no_func, "getgrent");
#endif
}
PP(pp_sgrent)
{
djSP;
#if defined(HAS_GROUP) && defined(HAS_SETGRENT)
setgrent();
RETPUSHYES;
#else
DIE(no_func, "setgrent");
#endif
}
PP(pp_egrent)
{
djSP;
#if defined(HAS_GROUP) && defined(HAS_ENDGRENT)
endgrent();
RETPUSHYES;
#else
DIE(no_func, "endgrent");
#endif
}
PP(pp_getlogin)
{
djSP; dTARGET;
#ifdef HAS_GETLOGIN
char *tmps;
EXTEND(SP, 1);
if (!(tmps = PerlProc_getlogin()))
RETPUSHUNDEF;
PUSHp(tmps, strlen(tmps));
RETURN;
#else
DIE(no_func, "getlogin");
#endif
}
/* Miscellaneous. */
PP(pp_syscall)
{
#ifdef HAS_SYSCALL
djSP; dMARK; dORIGMARK; dTARGET;
register I32 items = SP - MARK;
unsigned long a[20];
register I32 i = 0;
I32 retval = -1;
MAGIC *mg;
if (PL_tainting) {
while (++MARK <= SP) {
if (SvTAINTED(*MARK)) {
TAINT;
break;
}
}
MARK = ORIGMARK;
TAINT_PROPER("syscall");
}
/* This probably won't work on machines where sizeof(long) != sizeof(int)
* or where sizeof(long) != sizeof(char*). But such machines will
* not likely have syscall implemented either, so who cares?
*/
while (++MARK <= SP) {
if (SvNIOK(*MARK) || !i)
a[i++] = SvIV(*MARK);
else if (*MARK == &PL_sv_undef)
a[i++] = 0;
else
a[i++] = (unsigned long)SvPV_force(*MARK, PL_na);
if (i > 15)
break;
}
switch (items) {
default:
DIE("Too many args to syscall");
case 0:
DIE("Too few args to syscall");
case 1:
retval = syscall(a[0]);
break;
case 2:
retval = syscall(a[0],a[1]);
break;
case 3:
retval = syscall(a[0],a[1],a[2]);
break;
case 4:
retval = syscall(a[0],a[1],a[2],a[3]);
break;
case 5:
retval = syscall(a[0],a[1],a[2],a[3],a[4]);
break;
case 6:
retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
break;
case 7:
retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
break;
case 8:
retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
break;
#ifdef atarist
case 9:
retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]);
break;
case 10:
retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9]);
break;
case 11:
retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
a[10]);
break;
case 12:
retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
a[10],a[11]);
break;
case 13:
retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
a[10],a[11],a[12]);
break;
case 14:
retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
a[10],a[11],a[12],a[13]);
break;
#endif /* atarist */
}
SP = ORIGMARK;
PUSHi(retval);
RETURN;
#else
DIE(no_func, "syscall");
#endif
}
#ifdef FCNTL_EMULATE_FLOCK
/* XXX Emulate flock() with fcntl().
What's really needed is a good file locking module.
*/
static int
fcntl_emulate_flock(int fd, int operation)
{
struct flock flock;
switch (operation & ~LOCK_NB) {
case LOCK_SH:
flock.l_type = F_RDLCK;
break;
case LOCK_EX:
flock.l_type = F_WRLCK;
break;
case LOCK_UN:
flock.l_type = F_UNLCK;
break;
default:
errno = EINVAL;
return -1;
}
flock.l_whence = SEEK_SET;
flock.l_start = flock.l_len = 0L;
return fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock);
}
#endif /* FCNTL_EMULATE_FLOCK */
#ifdef LOCKF_EMULATE_FLOCK
/* XXX Emulate flock() with lockf(). This is just to increase
portability of scripts. The calls are not completely
interchangeable. What's really needed is a good file
locking module.
*/
/* The lockf() constants might have been defined in <unistd.h>.
Unfortunately, <unistd.h> causes troubles on some mixed
(BSD/POSIX) systems, such as SunOS 4.1.3.
Further, the lockf() constants aren't POSIX, so they might not be
visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
just stick in the SVID values and be done with it. Sigh.
*/
# ifndef F_ULOCK
# define F_ULOCK 0 /* Unlock a previously locked region */
# endif
# ifndef F_LOCK
# define F_LOCK 1 /* Lock a region for exclusive use */
# endif
# ifndef F_TLOCK
# define F_TLOCK 2 /* Test and lock a region for exclusive use */
# endif
# ifndef F_TEST
# define F_TEST 3 /* Test a region for other processes locks */
# endif
static int
lockf_emulate_flock (fd, operation)
int fd;
int operation;
{
int i;
int save_errno;
Off_t pos;
/* flock locks entire file so for lockf we need to do the same */
save_errno = errno;
pos = PerlLIO_lseek(fd, (Off_t)0, SEEK_CUR); /* get pos to restore later */
if (pos > 0) /* is seekable and needs to be repositioned */
if (PerlLIO_lseek(fd, (Off_t)0, SEEK_SET) < 0)
pos = -1; /* seek failed, so don't seek back afterwards */
errno = save_errno;
switch (operation) {
/* LOCK_SH - get a shared lock */
case LOCK_SH:
/* LOCK_EX - get an exclusive lock */
case LOCK_EX:
i = lockf (fd, F_LOCK, 0);
break;
/* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
case LOCK_SH|LOCK_NB:
/* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
case LOCK_EX|LOCK_NB:
i = lockf (fd, F_TLOCK, 0);
if (i == -1)
if ((errno == EAGAIN) || (errno == EACCES))
errno = EWOULDBLOCK;
break;
/* LOCK_UN - unlock (non-blocking is a no-op) */
case LOCK_UN:
case LOCK_UN|LOCK_NB:
i = lockf (fd, F_ULOCK, 0);
break;
/* Default - can't decipher operation */
default:
i = -1;
errno = EINVAL;
break;
}
if (pos > 0) /* need to restore position of the handle */
PerlLIO_lseek(fd, pos, SEEK_SET); /* ignore error here */
return (i);
}
#endif /* LOCKF_EMULATE_FLOCK */
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