/* doio.c
*
- * Copyright (c) 1991-2002, Larry Wall
+ * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
+ * 2000, 2001, 2002, 2003, 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.
# define OPEN_EXCL 0
#endif
-#if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX)
#include <signal.h>
-#endif
bool
Perl_do_open(pTHX_ GV *gv, register char *name, I32 len, int as_raw,
/* Collect default raw/crlf info from the op */
if (PL_op && PL_op->op_type == OP_OPEN) {
- /* set up disciplines */
+ /* set up IO layers */
U8 flags = PL_op->op_private;
in_raw = (flags & OPpOPEN_IN_RAW);
in_crlf = (flags & OPpOPEN_IN_CRLF);
(ismodifying & (O_CREAT|appendtrunc)))
TAINT_PROPER("sysopen");
}
- mode[ix++] = '#'; /* Marker to openn to use numeric "sysopen" */
+ mode[ix++] = IoTYPE_NUMERIC; /* Marker to openn to use numeric "sysopen" */
#if defined(USE_64_BIT_RAWIO) && defined(O_LARGEFILE)
rawmode |= O_LARGEFILE; /* Transparently largefiley. */
*--tend = '\0';
if (num_svs) {
- /* New style explict name, type is just mode and discipline/layer info */
+ /* New style explicit name, type is just mode and layer info */
STRLEN l = 0;
#ifdef USE_STDIO
if (SvROK(*svp) && !strchr(name,'&')) {
if (ckWARN(WARN_IO))
Perl_warner(aTHX_ packWARN(WARN_IO),
"Can't open a reference");
- SETERRNO(EINVAL, LIB$_INVARG);
+ SETERRNO(EINVAL, LIB_INVARG);
goto say_false;
}
#endif /* USE_STDIO */
if ((*type == IoTYPE_RDWR) && /* scary */
(*(type+1) == IoTYPE_RDONLY || *(type+1) == IoTYPE_WRONLY) &&
((!num_svs || (tend > type+1 && tend[-1] != IoTYPE_PIPE)))) {
- TAINT_PROPER("open");
+ TAINT_PROPER("open");
mode[1] = *type++;
writing = 1;
}
if (*type == IoTYPE_PIPE) {
if (num_svs) {
if (type[1] != IoTYPE_STD) {
- unknown_desr:
+ unknown_open_mode:
Perl_croak(aTHX_ "Unknown open() mode '%.*s'", (int)olen, oname);
}
type++;
name = type;
len = tend-type;
}
- else {
- if (*type)
- goto unknown_desr;
- }
if (*name == '\0') {
/* command is missing 19990114 */
if (ckWARN(WARN_PIPE))
else {
fp = PerlProc_popen(name,mode);
}
- }
+ if (num_svs) {
+ if (*type) {
+ if (PerlIO_apply_layers(aTHX_ fp, mode, type) != 0) {
+ goto say_false;
+ }
+ }
+ }
+ } /* IoTYPE_PIPE */
else if (*type == IoTYPE_WRONLY) {
TAINT_PROPER("open");
type++;
if (num_svs > 1) {
Perl_croak(aTHX_ "More than one argument to '%c&' open",IoTYPE(io));
}
- if (num_svs && SvIOK(*svp)) {
+ /*SUPPRESS 530*/
+ for (; isSPACE(*type); type++) ;
+ if (num_svs && (SvIOK(*svp) || (SvPOK(*svp) && looks_like_number(*svp)))) {
fd = SvUV(*svp);
+ num_svs = 0;
}
else if (isDIGIT(*type)) {
- /*SUPPRESS 530*/
- for (; isSPACE(*type); type++) ;
fd = atoi(type);
}
else {
}
else {
GV *thatgv;
- /*SUPPRESS 530*/
- for (; isSPACE(*type); type++) ;
thatgv = gv_fetchpv(type,FALSE,SVt_PVIO);
thatio = GvIO(thatgv);
}
if (!thatio) {
#ifdef EINVAL
- SETERRNO(EINVAL,SS$_IVCHAN);
+ SETERRNO(EINVAL,SS_IVCHAN);
#endif
goto say_false;
}
fp = PerlIO_openn(aTHX_ type,mode,-1,0,0,NULL,num_svs,svp);
}
} /* !& */
- }
+ if (!fp && type && *type && *type != ':' && !isIDFIRST(*type))
+ goto unknown_open_mode;
+ } /* IoTYPE_WRONLY */
else if (*type == IoTYPE_RDONLY) {
/*SUPPRESS 530*/
for (type++; isSPACE(*type); type++) ;
}
fp = PerlIO_openn(aTHX_ type,mode,-1,0,0,NULL,num_svs,svp);
}
- }
- else if ((num_svs && type[0] == IoTYPE_STD && type[1] == IoTYPE_PIPE) ||
+ if (!fp && type && *type && *type != ':' && !isIDFIRST(*type))
+ goto unknown_open_mode;
+ } /* IoTYPE_RDONLY */
+ else if ((num_svs && /* '-|...' or '...|' */
+ type[0] == IoTYPE_STD && type[1] == IoTYPE_PIPE) ||
(!num_svs && tend > type+1 && tend[-1] == IoTYPE_PIPE)) {
if (num_svs) {
type += 2; /* skip over '-|' */
fp = PerlProc_popen(name,mode);
}
IoTYPE(io) = IoTYPE_PIPE;
+ if (num_svs) {
+ for (; isSPACE(*type); type++) ;
+ if (*type) {
+ if (PerlIO_apply_layers(aTHX_ fp, mode, type) != 0) {
+ goto say_false;
+ }
+ }
+ }
}
- else {
+ else { /* layer(Args) */
if (num_svs)
- goto unknown_desr;
+ goto unknown_open_mode;
name = type;
IoTYPE(io) = IoTYPE_RDONLY;
/*SUPPRESS 530*/
if ((IoTYPE(io) == IoTYPE_RDONLY) &&
(fp == PerlIO_stdout() || fp == PerlIO_stderr())) {
Perl_warner(aTHX_ packWARN(WARN_IO),
- "Filehandle STD%s opened only for input",
- (fp == PerlIO_stdout()) ? "OUT" : "ERR");
+ "Filehandle STD%s reopened as %s only for input",
+ ((fp == PerlIO_stdout()) ? "OUT" : "ERR"),
+ GvENAME(gv));
}
else if ((IoTYPE(io) == IoTYPE_WRONLY) && fp == PerlIO_stdin()) {
Perl_warner(aTHX_ packWARN(WARN_IO),
- "Filehandle STDIN opened only for output");
+ "Filehandle STDIN reopened as %s only for output",
+ GvENAME(gv));
}
}
fd = PerlIO_fileno(fp);
- /* If there is no fd (e.g. PerlIO::Scalar) assume it isn't a
- * socket - this covers PerlIO::Scalar - otherwise unless we "know" the
+ /* If there is no fd (e.g. PerlIO::scalar) assume it isn't a
+ * socket - this covers PerlIO::scalar - otherwise unless we "know" the
* type probe for socket-ness.
*/
if (IoTYPE(io) && IoTYPE(io) != IoTYPE_PIPE && IoTYPE(io) != IoTYPE_STD && fd >= 0) {
}
}
if (savefd != fd) {
- /* Still a small can-of-worms here if (say) PerlIO::Scalar
+ /* Still a small can-of-worms here if (say) PerlIO::scalar
is assigned to (say) STDOUT - for now let dup2() fail
and provide the error
*/
/* need to close fp without closing underlying fd */
int ofd = PerlIO_fileno(fp);
int dupfd = PerlLIO_dup(ofd);
+#if defined(HAS_FCNTL) && defined(F_SETFD)
+ /* Assume if we have F_SETFD we have F_GETFD */
+ int coe = fcntl(ofd,F_GETFD);
+#endif
PerlIO_close(fp);
PerlLIO_dup2(dupfd,ofd);
+#if defined(HAS_FCNTL) && defined(F_SETFD)
+ /* The dup trick has lost close-on-exec on ofd */
+ fcntl(ofd,F_SETFD, coe);
+#endif
PerlLIO_close(dupfd);
}
else
if (writing) {
if (IoTYPE(io) == IoTYPE_SOCKET
|| (IoTYPE(io) == IoTYPE_WRONLY && fd >= 0 && S_ISCHR(PL_statbuf.st_mode)) ) {
- mode[0] = 'w';
- if (!(IoOFP(io) = PerlIO_openn(aTHX_ type,mode,fd,0,0,NULL,0,svp))) {
+ char *s = mode;
+ if (*s == IoTYPE_IMPLICIT || *s == IoTYPE_NUMERIC)
+ s++;
+ *s = 'w';
+ if (!(IoOFP(io) = PerlIO_openn(aTHX_ type,s,fd,0,0,NULL,0,svp))) {
PerlIO_close(fp);
IoIFP(io) = Nullfp;
goto say_false;
#endif
}
PL_filemode = 0;
+ if (!GvAV(gv))
+ return Nullfp;
while (av_len(GvAV(gv)) >= 0) {
STRLEN oldlen;
sv = av_shift(GvAV(gv));
{
if (ckWARN_d(WARN_INPLACE))
Perl_warner(aTHX_ packWARN(WARN_INPLACE),
- "Can't do inplace edit: %s would not be unique",
- SvPVX(sv));
+ "Can't do inplace edit: %"SVf" would not be unique",
+ sv);
do_close(gv,FALSE);
continue;
}
if (PerlLIO_rename(PL_oldname,SvPVX(sv)) < 0) {
if (ckWARN_d(WARN_INPLACE))
Perl_warner(aTHX_ packWARN(WARN_INPLACE),
- "Can't rename %s to %s: %s, skipping file",
- PL_oldname, SvPVX(sv), Strerror(errno) );
+ "Can't rename %s to %"SVf": %s, skipping file",
+ PL_oldname, sv, Strerror(errno) );
do_close(gv,FALSE);
continue;
}
if (link(PL_oldname,SvPVX(sv)) < 0) {
if (ckWARN_d(WARN_INPLACE))
Perl_warner(aTHX_ packWARN(WARN_INPLACE),
- "Can't rename %s to %s: %s, skipping file",
- PL_oldname, SvPVX(sv), Strerror(errno) );
+ "Can't rename %s to %"SVf": %s, skipping file",
+ PL_oldname, sv, Strerror(errno) );
do_close(gv,FALSE);
continue;
}
if (PerlProc_pipe(fd) < 0)
goto badexit;
- IoIFP(rstio) = PerlIO_fdopen(fd[0], "r");
- IoOFP(wstio) = PerlIO_fdopen(fd[1], "w");
+ IoIFP(rstio) = PerlIO_fdopen(fd[0], "r"PIPE_OPEN_MODE);
+ IoOFP(wstio) = PerlIO_fdopen(fd[1], "w"PIPE_OPEN_MODE);
IoOFP(rstio) = IoIFP(rstio);
IoIFP(wstio) = IoOFP(wstio);
IoTYPE(rstio) = IoTYPE_RDONLY;
gv = PL_argvgv;
if (!gv || SvTYPE(gv) != SVt_PVGV) {
if (not_implicit)
- SETERRNO(EBADF,SS$_IVCHAN);
+ SETERRNO(EBADF,SS_IVCHAN);
return FALSE;
}
io = GvIO(gv);
if (not_implicit) {
if (ckWARN(WARN_UNOPENED)) /* no check for closed here */
report_evil_fh(gv, io, PL_op->op_type);
- SETERRNO(EBADF,SS$_IVCHAN);
+ SETERRNO(EBADF,SS_IVCHAN);
}
return FALSE;
}
IoOFP(io) = IoIFP(io) = Nullfp;
}
else if (not_implicit) {
- SETERRNO(EBADF,SS$_IVCHAN);
+ SETERRNO(EBADF,SS_IVCHAN);
}
return retval;
report_evil_fh(gv, io, OP_phoney_OUTPUT_ONLY);
while (IoIFP(io)) {
+ int saverrno;
if (PerlIO_has_cntptr(IoIFP(io))) { /* (the code works without this) */
if (PerlIO_get_cnt(IoIFP(io)) > 0) /* cheat a little, since */
return FALSE; /* this is the most usual case */
}
+ saverrno = errno; /* getc and ungetc can stomp on errno */
ch = PerlIO_getc(IoIFP(io));
if (ch != EOF) {
(void)PerlIO_ungetc(IoIFP(io),ch);
+ errno = saverrno;
return FALSE;
}
+ errno = saverrno;
if (PerlIO_has_cntptr(IoIFP(io)) && PerlIO_canset_cnt(IoIFP(io))) {
if (PerlIO_get_cnt(IoIFP(io)) < -1)
}
if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
report_evil_fh(gv, io, PL_op->op_type);
- SETERRNO(EBADF,RMS$_IFI);
+ SETERRNO(EBADF,RMS_IFI);
return (Off_t)-1;
}
}
if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
report_evil_fh(gv, io, PL_op->op_type);
- SETERRNO(EBADF,RMS$_IFI);
+ SETERRNO(EBADF,RMS_IFI);
return FALSE;
}
return PerlLIO_lseek(PerlIO_fileno(fp), pos, whence);
if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
report_evil_fh(gv, io, PL_op->op_type);
- SETERRNO(EBADF,RMS$_IFI);
+ SETERRNO(EBADF,RMS_IFI);
return (Off_t)-1;
}
if (!end)
end = s+len;
#ifndef PERLIO_LAYERS
- Perl_croak(aTHX_ "Unknown discipline '%.*s'", end-s, s);
+ Perl_croak(aTHX_ "IO layers (like '%.*s') unavailable", end-s, s);
#else
s = end;
#endif
default:
if (PerlIO_isutf8(fp)) {
if (!SvUTF8(sv))
- sv_utf8_upgrade(sv = sv_mortalcopy(sv));
+ sv_utf8_upgrade_flags(sv = sv_mortalcopy(sv),
+ SV_GMAGIC|SV_UTF8_NO_ENCODING);
}
else if (DO_UTF8(sv)) {
if (!sv_utf8_downgrade((sv = sv_mortalcopy(sv)), TRUE)
else {
SV* sv = POPs;
char *s;
- STRLEN n_a;
+ STRLEN len;
PUTBACK;
if (SvTYPE(sv) == SVt_PVGV) {
gv = (GV*)sv;
goto do_fstat;
}
- s = SvPV(sv, n_a);
+ s = SvPV(sv, len);
PL_statgv = Nullgv;
- sv_setpv(PL_statname, s);
+ sv_setpvn(PL_statname, s, len);
+ s = SvPVX(PL_statname); /* s now NUL-terminated */
PL_laststype = OP_STAT;
PL_laststatval = PerlLIO_stat(s, &PL_statcache);
if (PL_laststatval < 0 && ckWARN(WARN_NEWLINE) && strchr(s, '\n'))
return PL_laststatval;
}
+#ifndef OS2
bool
Perl_do_aexec(pTHX_ SV *really, register SV **mark, register SV **sp)
{
return do_aexec5(really, mark, sp, 0, 0);
}
+#endif
bool
Perl_do_aexec5(pTHX_ SV *really, register SV **mark, register SV **sp,
if ((!really && *PL_Argv[0] != '/') ||
(really && *tmps != '/')) /* will execvp use PATH? */
TAINT_ENV(); /* testing IFS here is overkill, probably */
+ PERL_FPU_PRE_EXEC
if (really && *tmps)
PerlProc_execvp(tmps,EXEC_ARGV_CAST(PL_Argv));
else
PerlProc_execvp(PL_Argv[0],EXEC_ARGV_CAST(PL_Argv));
+ PERL_FPU_POST_EXEC
if (ckWARN(WARN_EXEC))
Perl_warner(aTHX_ packWARN(WARN_EXEC), "Can't exec \"%s\": %s",
(really ? tmps : PL_Argv[0]), Strerror(errno));
*--s = '\0';
if (s[-1] == '\'') {
*--s = '\0';
+ PERL_FPU_PRE_EXEC
PerlProc_execl(PL_cshname,"csh", flags, ncmd, (char*)0);
+ PERL_FPU_POST_EXEC
*s = '\'';
return FALSE;
}
while (*t && isSPACE(*t))
++t;
- if (!*t && (dup2(1,2) != -1)) {
+ if (!*t && (PerlLIO_dup2(1,2) != -1)) {
s[-2] = '\0';
break;
}
}
doshell:
+ PERL_FPU_PRE_EXEC
PerlProc_execl(PL_sh_path, "sh", "-c", cmd, (char*)0);
+ PERL_FPU_POST_EXEC
return FALSE;
}
}
}
*a = Nullch;
if (PL_Argv[0]) {
+ PERL_FPU_PRE_EXEC
PerlProc_execvp(PL_Argv[0],PL_Argv);
+ PERL_FPU_POST_EXEC
if (errno == ENOEXEC) { /* for system V NIH syndrome */
do_execfree();
goto doshell;
if (mark == sp)
break;
s = SvPVx(*++mark, n_a);
- if (isUPPER(*s)) {
+ if (isALPHA(*s)) {
if (*s == 'S' && s[1] == 'I' && s[2] == 'G')
s += 3;
- if (!(val = whichsig(s)))
+ if ((val = whichsig(s)) < 0)
Perl_croak(aTHX_ "Unrecognized signal name \"%s\"",s);
}
else
SV* modified = *++mark;
void * utbufp = &utbuf;
- /* be like C, and if both times are undefined, let the C
- library figure out what to do. This usually means
- "current time" */
+ /* Be like C, and if both times are undefined, let the C
+ * library figure out what to do. This usually means
+ * "current time". */
if ( accessed == &PL_sv_undef && modified == &PL_sv_undef )
- utbufp = NULL;
-
- Zero(&utbuf, sizeof utbuf, char);
+ utbufp = NULL;
+ else {
+ Zero(&utbuf, sizeof utbuf, char);
#ifdef BIG_TIME
- utbuf.actime = (Time_t)SvNVx(accessed); /* time accessed */
- utbuf.modtime = (Time_t)SvNVx(modified); /* time modified */
+ utbuf.actime = (Time_t)SvNVx(accessed); /* time accessed */
+ utbuf.modtime = (Time_t)SvNVx(modified); /* time modified */
#else
- utbuf.actime = (Time_t)SvIVx(accessed); /* time accessed */
- utbuf.modtime = (Time_t)SvIVx(modified); /* time modified */
+ utbuf.actime = (Time_t)SvIVx(accessed); /* time accessed */
+ utbuf.modtime = (Time_t)SvIVx(modified); /* time modified */
#endif
- APPLY_TAINT_PROPER();
+ }
+ APPLY_TAINT_PROPER();
tot = sp - mark;
while (++mark <= sp) {
char *name = SvPVx(*mark, n_a);
opbuf = SvPV(opstr, opsize);
if (opsize < 3 * SHORTSIZE
|| (opsize % (3 * SHORTSIZE))) {
- SETERRNO(EINVAL,LIB$_INVARG);
+ SETERRNO(EINVAL,LIB_INVARG);
return -1;
}
SETERRNO(0,0);
if (shmctl(id, IPC_STAT, &shmds) == -1)
return -1;
if (mpos < 0 || msize < 0 || mpos + msize > shmds.shm_segsz) {
- SETERRNO(EFAULT,SS$_ACCVIO); /* can't do as caller requested */
+ SETERRNO(EFAULT,SS_ACCVIO); /* can't do as caller requested */
return -1;
}
shm = (char *)shmat(id, (char*)NULL, (optype == OP_SHMREAD) ? SHM_RDONLY : 0);
if (*cp == '?') *cp = '%'; /* VMS style single-char wildcard */
while (ok && ((sts = lib$find_file(&wilddsc,&rsdsc,&cxt,
&dfltdsc,NULL,NULL,NULL))&1)) {
- end = rstr + (unsigned long int) *rslt;
- if (!hasver) while (*end != ';') end--;
+ /* with varying string, 1st word of buffer contains result length */
+ end = rstr + *((unsigned short int*)rslt);
+ if (!hasver) while (*end != ';' && end > rstr) end--;
*(end++) = '\n'; *end = '\0';
for (cp = rstr; *cp; cp++) *cp = _tolower(*cp);
if (hasdir) {
}
if (cxt) (void)lib$find_file_end(&cxt);
if (ok && sts != RMS$_NMF &&
- sts != RMS$_DNF && sts != RMS$_FNF) ok = 0;
+ sts != RMS$_DNF && sts != RMS_FNF) ok = 0;
if (!ok) {
if (!(sts & 1)) {
SETERRNO((sts == RMS$_SYN ? EINVAL : EVMSERR),sts);
https://perl5.git.perl.org / perl5.git / blobdiff