/* doio.c
*
* Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
- * 2000, 2001, 2002, 2003, 2004, 2005, by Larry Wall and others
+ * 2000, 2001, 2002, 2003, 2004, 2005, 2006, by Larry Wall and others
*
* You may distribute under the terms of either the GNU General Public
* License or the Artistic License, as specified in the README file.
{
dVAR;
register IO * const io = GvIOn(gv);
- PerlIO *saveifp = Nullfp;
- PerlIO *saveofp = Nullfp;
+ PerlIO *saveifp = NULL;
+ PerlIO *saveofp = NULL;
int savefd = -1;
char savetype = IoTYPE_CLOSED;
int writing = 0;
"Warning: unable to close filehandle %s properly.\n",
GvENAME(gv));
}
- IoOFP(io) = IoIFP(io) = Nullfp;
+ IoOFP(io) = IoIFP(io) = NULL;
}
if (as_raw) {
IoTYPE(io) = PerlIO_intmode2str(rawmode, &mode[ix], &writing);
- namesv = sv_2mortal(newSVpvn(oname,strlen(oname)));
+ namesv = sv_2mortal(newSVpv(oname,0));
num_svs = 1;
svp = &namesv;
- type = Nullch;
+ type = NULL;
fp = PerlIO_openn(aTHX_ type, mode, -1, rawmode, rawperm, NULL, num_svs, svp);
}
else {
errno = EPIPE;
goto say_false;
}
- if ((*name == '-' && name[1] == '\0') || num_svs)
+ if (!(*name == '-' && name[1] == '\0') || num_svs)
TAINT_ENV();
TAINT_PROPER("piped open");
if (!num_svs && name[len-1] == '|') {
}
else {
GV *thatgv;
- thatgv = gv_fetchpv(type,FALSE,SVt_PVIO);
+ thatgv = gv_fetchpvn_flags(type, tend - type,
+ 0, SVt_PVIO);
thatio = GvIO(thatgv);
}
if (!thatio) {
#ifdef USE_SFIO
/* sfio fails to clear error on next
sfwrite, contrary to documentation.
- -- Nick Clark */
+ -- Nicholas Clark */
if (PerlIO_seek(that_fp, 0, SEEK_CUR) == -1)
PerlIO_clearerr(that_fp);
#endif
fd = -1;
}
if (!num_svs)
- type = Nullch;
+ type = NULL;
if (that_fp) {
fp = PerlIO_fdupopen(aTHX_ that_fp, NULL, dodup);
}
}
else {
if (!num_svs) {
- namesv = sv_2mortal(newSVpvn(type,strlen(type)));
+ namesv = sv_2mortal(newSVpvn(type,tend - type));
num_svs = 1;
svp = &namesv;
- type = Nullch;
+ type = NULL;
}
fp = PerlIO_openn(aTHX_ type,mode,-1,0,0,NULL,num_svs,svp);
}
}
else {
if (!num_svs) {
- namesv = sv_2mortal(newSVpvn(type,strlen(type)));
+ namesv = sv_2mortal(newSVpvn(type,tend - type));
num_svs = 1;
svp = &namesv;
- type = Nullch;
+ type = NULL;
}
fp = PerlIO_openn(aTHX_ type,mode,-1,0,0,NULL,num_svs,svp);
}
}
else {
if (!num_svs) {
- namesv = sv_2mortal(newSVpvn(type,strlen(type)));
+ namesv = sv_2mortal(newSVpvn(type,tend - type));
num_svs = 1;
svp = &namesv;
- type = Nullch;
+ type = NULL;
}
fp = PerlIO_openn(aTHX_ type,mode,-1,0,0,NULL,num_svs,svp);
}
}
#if defined(HAS_FCNTL) && defined(F_SETFD)
if (fd >= 0) {
- int save_errno = errno;
+ const int save_errno = errno;
fcntl(fd,F_SETFD,fd > PL_maxsysfd); /* can change errno */
errno = save_errno;
}
*s = 'w';
if (!(IoOFP(io) = PerlIO_openn(aTHX_ type,s,fd,0,0,NULL,0,svp))) {
PerlIO_close(fp);
- IoIFP(io) = Nullfp;
+ IoIFP(io) = NULL;
goto say_false;
}
}
PerlIO *
Perl_nextargv(pTHX_ register GV *gv)
{
+ dVAR;
register SV *sv;
#ifndef FLEXFILENAMES
int filedev;
IO * const io = GvIOp(gv);
if (!PL_argvoutgv)
- PL_argvoutgv = gv_fetchpv("ARGVOUT",TRUE,SVt_PVIO);
+ PL_argvoutgv = gv_fetchpvs("ARGVOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
if (io && (IoFLAGS(io) & IOf_ARGV) && (IoFLAGS(io) & IOf_START)) {
IoFLAGS(io) &= ~IOf_START;
if (PL_inplace) {
if (!PL_argvout_stack)
PL_argvout_stack = newAV();
- av_push(PL_argvout_stack, SvREFCNT_inc(PL_defoutgv));
+ av_push(PL_argvout_stack, SvREFCNT_inc_simple(PL_defoutgv));
}
}
if (PL_filemode & (S_ISUID|S_ISGID)) {
PL_lastfd = -1;
PL_filemode = 0;
if (!GvAV(gv))
- return Nullfp;
+ return NULL;
while (av_len(GvAV(gv)) >= 0) {
STRLEN oldlen;
sv = av_shift(GvAV(gv));
sv_setsv(GvSVn(gv),sv);
SvSETMAGIC(GvSV(gv));
PL_oldname = SvPVx(GvSV(gv), oldlen);
- if (do_open(gv,PL_oldname,oldlen,PL_inplace!=0,O_RDONLY,0,Nullfp)) {
+ if (do_open(gv,PL_oldname,oldlen,PL_inplace!=0,O_RDONLY,0,NULL)) {
if (PL_inplace) {
TAINT_PROPER("inplace open");
if (oldlen == 1 && *PL_oldname == '-') {
- setdefout(gv_fetchpv("STDOUT",TRUE,SVt_PVIO));
+ setdefout(gv_fetchpvs("STDOUT", GV_ADD|GV_NOTQUAL,
+ SVt_PVIO));
return IoIFP(GvIOp(gv));
}
#ifndef FLEXFILENAMES
if (ckWARN_d(WARN_INPLACE))
Perl_warner(aTHX_ packWARN(WARN_INPLACE),
"Can't rename %s to %"SVf": %s, skipping file",
- PL_oldname, sv, Strerror(errno) );
+ PL_oldname, (void*)sv, Strerror(errno));
do_close(gv,FALSE);
continue;
}
(void)PerlLIO_unlink(SvPVX_const(sv));
(void)PerlLIO_rename(PL_oldname,SvPVX_const(sv));
do_open(gv,(char*)SvPVX_const(sv),SvCUR(sv),PL_inplace!=0,
- O_RDONLY,0,Nullfp);
+ O_RDONLY,0,NULL);
#endif /* DOSISH */
#else
(void)UNLINK(SvPVX_const(sv));
SETERRNO(0,0); /* in case sprintf set errno */
#ifdef VMS
if (!do_open(PL_argvoutgv,(char*)SvPVX_const(sv),SvCUR(sv),
- PL_inplace!=0,O_WRONLY|O_CREAT|O_TRUNC,0,Nullfp))
+ PL_inplace!=0,O_WRONLY|O_CREAT|O_TRUNC,0,NULL))
#else
if (!do_open(PL_argvoutgv,(char*)SvPVX_const(sv),SvCUR(sv),
PL_inplace!=0,O_WRONLY|O_CREAT|OPEN_EXCL,0666,
- Nullfp))
+ NULL))
#endif
{
if (ckWARN_d(WARN_INPLACE))
GV *oldout = (GV*)av_pop(PL_argvout_stack);
setdefout(oldout);
SvREFCNT_dec(oldout);
- return Nullfp;
+ return NULL;
}
- setdefout(gv_fetchpv("STDOUT",TRUE,SVt_PVIO));
+ setdefout(gv_fetchpvs("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO));
}
- return Nullfp;
+ return NULL;
}
/* explicit renamed to avoid C++ conflict -- kja */
bool
Perl_do_close(pTHX_ GV *gv, bool not_implicit)
{
+ dVAR;
bool retval;
IO *io;
bool
Perl_io_close(pTHX_ IO *io, bool not_implicit)
{
+ dVAR;
bool retval = FALSE;
if (IoIFP(io)) {
retval = TRUE;
else {
if (IoOFP(io) && IoOFP(io) != IoIFP(io)) { /* a socket */
- bool prev_err = PerlIO_error(IoOFP(io));
+ const bool prev_err = PerlIO_error(IoOFP(io));
retval = (PerlIO_close(IoOFP(io)) != EOF && !prev_err);
PerlIO_close(IoIFP(io)); /* clear stdio, fd already closed */
}
else {
- bool prev_err = PerlIO_error(IoIFP(io));
+ const bool prev_err = PerlIO_error(IoIFP(io));
retval = (PerlIO_close(IoIFP(io)) != EOF && !prev_err);
}
}
- IoOFP(io) = IoIFP(io) = Nullfp;
+ IoOFP(io) = IoIFP(io) = NULL;
}
else if (not_implicit) {
SETERRNO(EBADF,SS_IVCHAN);
bool
Perl_do_eof(pTHX_ GV *gv)
{
- register IO *io;
- int ch;
-
- io = GvIO(gv);
+ dVAR;
+ register IO * const io = GvIO(gv);
if (!io)
return TRUE;
report_evil_fh(gv, io, OP_phoney_OUTPUT_ONLY);
while (IoIFP(io)) {
- int saverrno;
-
if (PerlIO_has_cntptr(IoIFP(io))) { /* (the code works without this) */
if (PerlIO_get_cnt(IoIFP(io)) > 0) /* cheat a little, since */
return FALSE; /* this is the most usual case */
}
- saverrno = errno; /* getc and ungetc can stomp on errno */
- ch = PerlIO_getc(IoIFP(io));
- if (ch != EOF) {
- (void)PerlIO_ungetc(IoIFP(io),ch);
+ {
+ /* getc and ungetc can stomp on errno */
+ const int saverrno = errno;
+ const int ch = PerlIO_getc(IoIFP(io));
+ if (ch != EOF) {
+ (void)PerlIO_ungetc(IoIFP(io),ch);
+ errno = saverrno;
+ return FALSE;
+ }
errno = saverrno;
- return FALSE;
}
- errno = saverrno;
if (PerlIO_has_cntptr(IoIFP(io)) && PerlIO_canset_cnt(IoIFP(io))) {
if (PerlIO_get_cnt(IoIFP(io)) < -1)
Off_t
Perl_do_tell(pTHX_ GV *gv)
{
- register IO *io = 0;
+ dVAR;
+ register IO *io = NULL;
register PerlIO *fp;
if (gv && (io = GvIO(gv)) && (fp = IoIFP(io))) {
bool
Perl_do_seek(pTHX_ GV *gv, Off_t pos, int whence)
{
- register IO *io = 0;
+ dVAR;
+ register IO *io = NULL;
register PerlIO *fp;
if (gv && (io = GvIO(gv)) && (fp = IoIFP(io))) {
Off_t
Perl_do_sysseek(pTHX_ GV *gv, Off_t pos, int whence)
{
- register IO *io = 0;
+ dVAR;
+ register IO *io = NULL;
register PerlIO *fp;
if (gv && (io = GvIO(gv)) && (fp = IoIFP(io)))
bool
Perl_do_print(pTHX_ register SV *sv, PerlIO *fp)
{
+ dVAR;
register const char *tmps;
STRLEN len;
+ U8 *tmpbuf = NULL;
+ bool happy = TRUE;
/* assuming fp is checked earlier */
if (!sv)
}
/* FALL THROUGH */
default:
+ /* Do this first to trigger any overloading. */
+ tmps = SvPV_const(sv, len);
if (PerlIO_isutf8(fp)) {
- if (!SvUTF8(sv))
- sv_utf8_upgrade_flags(sv = sv_mortalcopy(sv),
- SV_GMAGIC|SV_UTF8_NO_ENCODING);
+ if (!SvUTF8(sv)) {
+ /* We don't modify the original scalar. */
+ tmpbuf = bytes_to_utf8((const U8*) tmps, &len);
+ tmps = (char *) tmpbuf;
+ }
}
else if (DO_UTF8(sv)) {
- if (!sv_utf8_downgrade((sv = sv_mortalcopy(sv)), TRUE)
- && ckWARN_d(WARN_UTF8))
- {
- Perl_warner(aTHX_ packWARN(WARN_UTF8), "Wide character in print");
+ STRLEN tmplen = len;
+ bool utf8 = TRUE;
+ U8 *result = bytes_from_utf8((const U8*) tmps, &tmplen, &utf8);
+ if (!utf8) {
+ tmpbuf = result;
+ tmps = (char *) tmpbuf;
+ len = tmplen;
+ }
+ else {
+ assert((char *)result == tmps);
+ if (ckWARN_d(WARN_UTF8)) {
+ Perl_warner(aTHX_ packWARN(WARN_UTF8),
+ "Wide character in print");
+ }
}
}
- tmps = SvPV_const(sv, len);
break;
}
/* To detect whether the process is about to overstep its
* at which we would get EPERM. Note that when using buffered
* io the write failure can be delayed until the flush/close. --jhi */
if (len && (PerlIO_write(fp,tmps,len) == 0))
- return FALSE;
- return !PerlIO_error(fp);
+ happy = FALSE;
+ if (tmpbuf)
+ Safefree(tmpbuf);
+ return happy ? !PerlIO_error(fp) : FALSE;
}
I32
Perl_my_stat(pTHX)
{
+ dVAR;
dSP;
IO *io;
GV* gv;
return PL_laststatval;
if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
report_evil_fh(gv, io, PL_op->op_type);
- PL_statgv = Nullgv;
+ PL_statgv = NULL;
sv_setpvn(PL_statname,"", 0);
return (PL_laststatval = -1);
}
return PL_laststatval;
}
else {
- SV* sv = POPs;
+ SV* const sv = POPs;
const char *s;
STRLEN len;
PUTBACK;
}
s = SvPV_const(sv, len);
- PL_statgv = Nullgv;
+ PL_statgv = NULL;
sv_setpvn(PL_statname, s, len);
s = SvPVX_const(PL_statname); /* s now NUL-terminated */
PL_laststype = OP_STAT;
}
}
-static const char no_prev_lstat[] = "The stat preceding -l _ wasn't an lstat";
I32
Perl_my_lstat(pTHX)
{
+ dVAR;
+ static const char no_prev_lstat[] = "The stat preceding -l _ wasn't an lstat";
dSP;
SV *sv;
if (PL_op->op_flags & OPf_REF) {
Perl_croak(aTHX_ no_prev_lstat);
PL_laststype = OP_LSTAT;
- PL_statgv = Nullgv;
+ PL_statgv = NULL;
sv = POPs;
PUTBACK;
if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV && ckWARN(WARN_IO)) {
#else
if (sp > mark) {
char **a;
- const char *tmps = Nullch;
+ const char *tmps = NULL;
Newx(PL_Argv, sp - mark + 1, char*);
a = PL_Argv;
else
*a++ = "";
}
- *a = Nullch;
+ *a = NULL;
if (really)
tmps = SvPV_nolen_const(really);
if ((!really && *PL_Argv[0] != '/') ||
Perl_warner(aTHX_ packWARN(WARN_EXEC), "Can't exec \"%s\": %s",
(really ? tmps : PL_Argv[0]), Strerror(errno));
if (do_report) {
- int e = errno;
+ const int e = errno;
PerlLIO_write(fd, (void*)&e, sizeof(int));
PerlLIO_close(fd);
void
Perl_do_execfree(pTHX)
{
+ dVAR;
Safefree(PL_Argv);
- PL_Argv = Null(char **);
+ PL_Argv = NULL;
Safefree(PL_Cmd);
- PL_Cmd = Nullch;
+ PL_Cmd = NULL;
}
#ifdef PERL_DEFAULT_DO_EXEC3_IMPLEMENTATION
register char **a;
register char *s;
char *cmd;
- int cmdlen;
/* Make a copy so we can change it */
- cmdlen = strlen(incmd);
+ const int cmdlen = strlen(incmd);
Newx(cmd, cmdlen+1, char);
strncpy(cmd, incmd, cmdlen);
cmd[cmdlen] = 0;
if (*s == ' ')
s++;
if (*s++ == '\'') {
- char *ncmd = s;
+ char * const ncmd = s;
while (*s)
s++;
if (*s)
*s++ = '\0';
}
- *a = Nullch;
+ *a = NULL;
if (PL_Argv[0]) {
PERL_FPU_PRE_EXEC
PerlProc_execvp(PL_Argv[0],PL_Argv);
do_execfree();
goto doshell;
}
- {
- if (ckWARN(WARN_EXEC))
- Perl_warner(aTHX_ packWARN(WARN_EXEC), "Can't exec \"%s\": %s",
- PL_Argv[0], Strerror(errno));
- if (do_report) {
- int e = errno;
- PerlLIO_write(fd, (void*)&e, sizeof(int));
- PerlLIO_close(fd);
- }
+ if (ckWARN(WARN_EXEC))
+ Perl_warner(aTHX_ packWARN(WARN_EXEC), "Can't exec \"%s\": %s",
+ PL_Argv[0], Strerror(errno));
+ if (do_report) {
+ const int e = errno;
+ PerlLIO_write(fd, (const void*)&e, sizeof(int));
+ PerlLIO_close(fd);
}
}
do_execfree();
I32
Perl_apply(pTHX_ I32 type, register SV **mark, register SV **sp)
{
+ dVAR;
register I32 val;
register I32 tot = 0;
- const char *what;
+ const char *const what = PL_op_name[type];
const char *s;
SV ** const oldmark = mark;
platforms where kill was not defined. */
#ifndef HAS_KILL
if (type == OP_KILL)
- Perl_die(aTHX_ PL_no_func, "kill");
+ Perl_die(aTHX_ PL_no_func, what);
#endif
#ifndef HAS_CHOWN
if (type == OP_CHOWN)
- Perl_die(aTHX_ PL_no_func, "chown");
+ Perl_die(aTHX_ PL_no_func, what);
#endif
}
switch (type) {
case OP_CHMOD:
- what = "chmod";
APPLY_TAINT_PROPER();
if (++mark <= sp) {
val = SvIVx(*mark);
break;
#ifdef HAS_CHOWN
case OP_CHOWN:
- what = "chown";
APPLY_TAINT_PROPER();
if (sp - mark > 2) {
register I32 val2;
*/
#ifdef HAS_KILL
case OP_KILL:
- what = "kill";
APPLY_TAINT_PROPER();
if (mark == sp)
break;
if (val < 0) {
val = -val;
while (++mark <= sp) {
- I32 proc = SvIVx(*mark);
+ const I32 proc = SvIVx(*mark);
APPLY_TAINT_PROPER();
#ifdef HAS_KILLPG
if (PerlProc_killpg(proc,val)) /* BSD */
}
else {
while (++mark <= sp) {
- I32 proc = SvIVx(*mark);
+ const I32 proc = SvIVx(*mark);
APPLY_TAINT_PROPER();
if (PerlProc_kill(proc, val))
tot--;
break;
#endif
case OP_UNLINK:
- what = "unlink";
APPLY_TAINT_PROPER();
tot = sp - mark;
while (++mark <= sp) {
break;
#if defined(HAS_UTIME) || defined(HAS_FUTIMES)
case OP_UTIME:
- what = "utime";
APPLY_TAINT_PROPER();
if (sp - mark > 2) {
#if defined(HAS_FUTIMES)
void *utbufp = &utbuf;
#endif
- SV* accessed = *++mark;
- SV* modified = *++mark;
+ SV* const accessed = *++mark;
+ SV* const modified = *++mark;
/* Be like C, and if both times are undefined, let the C
* library figure out what to do. This usually means
goto do_futimes;
}
else {
- const char *name = SvPV_nolen_const(*mark);
+ const char * const name = SvPV_nolen_const(*mark);
APPLY_TAINT_PROPER();
#ifdef HAS_FUTIMES
if (utimes(name, utbufp))
* is in the list of groups returned from getgroups().
*/
{
+ dVAR;
#ifdef DOSISH
/* [Comments and code from Len Reed]
* MS-DOS "user" is similar to UNIX's "superuser," but can't write
/* This is simply not correct for AppleShare, but fix it yerself. */
return TRUE;
#else
+ dVAR;
if (testgid == (effective ? PL_egid : PL_gid))
return TRUE;
#ifdef HAS_GETGROUPS
-#ifndef NGROUPS
-#define NGROUPS 32
-#endif
{
- Groups_t gary[NGROUPS];
+ Groups_t *gary = NULL;
I32 anum;
+ bool rc = FALSE;
- anum = getgroups(NGROUPS,gary);
+ anum = getgroups(0, gary);
+ Newx(gary, anum, Groups_t);
+ anum = getgroups(anum, gary);
while (--anum >= 0)
- if (gary[anum] == testgid)
- return TRUE;
+ if (gary[anum] == testgid) {
+ rc = TRUE;
+ break;
+ }
+
+ Safefree(gary);
+ return rc;
}
-#endif
+#else
return FALSE;
#endif
+#endif
}
#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
I32
Perl_do_ipcget(pTHX_ I32 optype, SV **mark, SV **sp)
{
- key_t key = (key_t)SvNVx(*++mark);
+ dVAR;
+ const key_t key = (key_t)SvNVx(*++mark);
const I32 n = (optype == OP_MSGGET) ? 0 : SvIVx(*++mark);
const I32 flags = SvIVx(*++mark);
- (void)sp;
+
+ PERL_UNUSED_ARG(sp);
SETERRNO(0,0);
switch (optype)
I32
Perl_do_ipcctl(pTHX_ I32 optype, SV **mark, SV **sp)
{
- SV *astr;
+ dVAR;
char *a;
- STRLEN infosize;
- I32 getinfo;
I32 ret = -1;
const I32 id = SvIVx(*++mark);
+#ifdef Semctl
const I32 n = (optype == OP_SEMCTL) ? SvIVx(*++mark) : 0;
+#endif
const I32 cmd = SvIVx(*++mark);
- PERL_UNUSED_ARG(sp);
+ SV * const astr = *++mark;
+ STRLEN infosize = 0;
+ I32 getinfo = (cmd == IPC_STAT);
- astr = *++mark;
- infosize = 0;
- getinfo = (cmd == IPC_STAT);
+ PERL_UNUSED_ARG(sp);
switch (optype)
{
}
else
{
- IV i = SvIV(astr);
+ const IV i = SvIV(astr);
a = INT2PTR(char *,i); /* ouch */
}
SETERRNO(0,0);
I32
Perl_do_msgsnd(pTHX_ SV **mark, SV **sp)
{
+ dVAR;
#ifdef HAS_MSG
- SV *mstr;
- const char *mbuf;
- I32 msize, flags;
STRLEN len;
const I32 id = SvIVx(*++mark);
+ SV * const mstr = *++mark;
+ const I32 flags = SvIVx(*++mark);
+ const char * const mbuf = SvPV_const(mstr, len);
+ const I32 msize = len - sizeof(long);
+
PERL_UNUSED_ARG(sp);
- mstr = *++mark;
- flags = SvIVx(*++mark);
- mbuf = SvPV_const(mstr, len);
- if ((msize = len - sizeof(long)) < 0)
+ if (msize < 0)
Perl_croak(aTHX_ "Arg too short for msgsnd");
SETERRNO(0,0);
return msgsnd(id, (struct msgbuf *)mbuf, msize, flags);
Perl_do_msgrcv(pTHX_ SV **mark, SV **sp)
{
#ifdef HAS_MSG
- SV *mstr;
+ dVAR;
char *mbuf;
long mtype;
I32 msize, flags, ret;
const I32 id = SvIVx(*++mark);
+ SV * const mstr = *++mark;
PERL_UNUSED_ARG(sp);
- mstr = *++mark;
/* suppress warning when reading into undef var --jhi */
if (! SvOK(mstr))
sv_setpvn(mstr, "", 0);
Perl_do_semop(pTHX_ SV **mark, SV **sp)
{
#ifdef HAS_SEM
- SV *opstr;
- const char *opbuf;
+ dVAR;
STRLEN opsize;
const I32 id = SvIVx(*++mark);
+ SV * const opstr = *++mark;
+ const char * const opbuf = SvPV_const(opstr, opsize);
PERL_UNUSED_ARG(sp);
- opstr = *++mark;
- opbuf = SvPV_const(opstr, opsize);
if (opsize < 3 * SHORTSIZE
|| (opsize % (3 * SHORTSIZE))) {
SETERRNO(EINVAL,LIB_INVARG);
{
const int nsops = opsize / (3 * sizeof (short));
int i = nsops;
- short *ops = (short *) opbuf;
+ short * const ops = (short *) opbuf;
short *o = ops;
struct sembuf *temps, *t;
I32 result;
Perl_do_shmio(pTHX_ I32 optype, SV **mark, SV **sp)
{
#ifdef HAS_SHM
- SV *mstr;
+ dVAR;
char *shm;
- I32 mpos, msize;
struct shmid_ds shmds;
const I32 id = SvIVx(*++mark);
+ SV * const mstr = *++mark;
+ const I32 mpos = SvIVx(*++mark);
+ const I32 msize = SvIVx(*++mark);
PERL_UNUSED_ARG(sp);
- mstr = *++mark;
- mpos = SvIVx(*++mark);
- msize = SvIVx(*++mark);
SETERRNO(0,0);
if (shmctl(id, IPC_STAT, &shmds) == -1)
return -1;
- if (mpos < 0 || msize < 0 || mpos + msize > shmds.shm_segsz) {
+ if (mpos < 0 || msize < 0 || (size_t)mpos + msize > shmds.shm_segsz) {
SETERRNO(EFAULT,SS_ACCVIO); /* can't do as caller requested */
return -1;
}
- shm = (char *)shmat(id, (char*)NULL, (optype == OP_SHMREAD) ? SHM_RDONLY : 0);
+ shm = (char *)shmat(id, NULL, (optype == OP_SHMREAD) ? SHM_RDONLY : 0);
if (shm == (char *)-1) /* I hate System V IPC, I really do */
return -1;
if (optype == OP_SHMREAD) {
if (! SvOK(mstr))
sv_setpvn(mstr, "", 0);
SvPV_force_nolen(mstr);
- mbuf = SvGROW(mstr, msize+1);
+ mbuf = SvGROW(mstr, (STRLEN)msize+1);
Copy(shm + mpos, mbuf, msize, char);
SvCUR_set(mstr, msize);
Perl_start_glob (pTHX_ SV *tmpglob, IO *io)
{
dVAR;
- SV * const tmpcmd = NEWSV(55, 0);
+ SV * const tmpcmd = newSV(0);
PerlIO *fp;
ENTER;
SAVEFREESV(tmpcmd);
#ifdef VMS /* expand the wildcards right here, rather than opening a pipe, */
/* since spawning off a process is a real performance hit */
- {
-#include <descrip.h>
-#include <lib$routines.h>
-#include <nam.h>
-#include <rmsdef.h>
- char rslt[NAM$C_MAXRSS+1+sizeof(unsigned short int)] = {'\0','\0'};
- char vmsspec[NAM$C_MAXRSS+1];
- char * const rstr = rslt + sizeof(unsigned short int);
- char *begin, *end, *cp;
- $DESCRIPTOR(dfltdsc,"SYS$DISK:[]*.*;");
- PerlIO *tmpfp;
- STRLEN i;
- struct dsc$descriptor_s wilddsc
- = {0, DSC$K_DTYPE_T, DSC$K_CLASS_S, 0};
- struct dsc$descriptor_vs rsdsc
- = {sizeof rslt, DSC$K_DTYPE_VT, DSC$K_CLASS_VS, rslt};
- unsigned long int cxt = 0, sts = 0, ok = 1, hasdir = 0, hasver = 0, isunix = 0;
-
- /* We could find out if there's an explicit dev/dir or version
- by peeking into lib$find_file's internal context at
- ((struct NAM *)((struct FAB *)cxt)->fab$l_nam)->nam$l_fnb
- but that's unsupported, so I don't want to do it now and
- have it bite someone in the future. */
- cp = SvPV(tmpglob,i);
- for (; i; i--) {
- if (cp[i] == ';') hasver = 1;
- if (cp[i] == '.') {
- if (sts) hasver = 1;
- else sts = 1;
- }
- if (cp[i] == '/') {
- hasdir = isunix = 1;
- break;
- }
- if (cp[i] == ']' || cp[i] == '>' || cp[i] == ':') {
- hasdir = 1;
- break;
- }
- }
- if ((tmpfp = PerlIO_tmpfile()) != NULL) {
- Stat_t st;
- if (!PerlLIO_stat(SvPVX_const(tmpglob),&st) && S_ISDIR(st.st_mode))
- ok = ((wilddsc.dsc$a_pointer = tovmspath(SvPVX(tmpglob),vmsspec)) != NULL);
- else ok = ((wilddsc.dsc$a_pointer = tovmsspec(SvPVX(tmpglob),vmsspec)) != NULL);
- if (ok) wilddsc.dsc$w_length = (unsigned short int) strlen(wilddsc.dsc$a_pointer);
- for (cp=wilddsc.dsc$a_pointer; ok && cp && *cp; cp++)
- if (*cp == '?') *cp = '%'; /* VMS style single-char wildcard */
- while (ok && ((sts = lib$find_file(&wilddsc,&rsdsc,&cxt,
- &dfltdsc,NULL,NULL,NULL))&1)) {
- /* with varying string, 1st word of buffer contains result length */
- end = rstr + *((unsigned short int*)rslt);
- if (!hasver) while (*end != ';' && end > rstr) end--;
- *(end++) = '\n'; *end = '\0';
- for (cp = rstr; *cp; cp++) *cp = _tolower(*cp);
- if (hasdir) {
- if (isunix) trim_unixpath(rstr,SvPVX(tmpglob),1);
- begin = rstr;
- }
- else {
- begin = end;
- while (*(--begin) != ']' && *begin != '>') ;
- ++begin;
- }
- ok = (PerlIO_puts(tmpfp,begin) != EOF);
- }
- if (cxt) (void)lib$find_file_end(&cxt);
- if (ok && sts != RMS$_NMF &&
- sts != RMS$_DNF && sts != RMS_FNF) ok = 0;
- if (!ok) {
- if (!(sts & 1)) {
- SETERRNO((sts == RMS$_SYN ? EINVAL : EVMSERR),sts);
- }
- PerlIO_close(tmpfp);
- fp = NULL;
- }
- else {
- PerlIO_rewind(tmpfp);
- IoTYPE(io) = IoTYPE_RDONLY;
- IoIFP(io) = fp = tmpfp;
- IoFLAGS(io) &= ~IOf_UNTAINT; /* maybe redundant */
- }
- }
- }
+
+PerlIO *
+Perl_vms_start_glob
+ (pTHX_ SV *tmpglob,
+ IO *io);
+
+ fp = Perl_vms_start_glob(aTHX_ tmpglob, io);
+
#else /* !VMS */
#ifdef MACOS_TRADITIONAL
sv_setpv(tmpcmd, "glob ");
#endif /* !DOSISH */
#endif /* MACOS_TRADITIONAL */
(void)do_open(PL_last_in_gv, (char*)SvPVX_const(tmpcmd), SvCUR(tmpcmd),
- FALSE, O_RDONLY, 0, Nullfp);
+ FALSE, O_RDONLY, 0, NULL);
fp = IoIFP(io);
#endif /* !VMS */
LEAVE;
https://perl5.git.perl.org / perl5.git / blobdiff