X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=doio.c;h=2da66c620bdc77e95170526e8635f79279074483;hb=f5e3445d922108beb0eda8afa05a86411da18e40;hp=be27b93b07ec87c83db5dd0e8384f4bf854901f7;hpb=ccfc67b7b0a9fa9e1a1cbb2090b71ea33fc44ae7;p=p5sagit%2Fp5-mst-13.2.git diff --git a/doio.c b/doio.c index be27b93..2da66c6 100644 --- a/doio.c +++ b/doio.c @@ -1,6 +1,6 @@ /* doio.c * - * Copyright (c) 1991-2001, Larry Wall + * Copyright (c) 1991-2002, 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. @@ -140,18 +140,44 @@ Perl_do_openn(pTHX_ GV *gv, register char *name, I32 len, int as_raw, if (as_raw) { /* sysopen style args, i.e. integer mode and permissions */ STRLEN ix = 0; - if (num_svs != 0) { - Perl_croak(aTHX_ "panic: sysopen with multiple args"); - } - if (rawmode & (O_WRONLY|O_RDWR|O_CREAT + int appendtrunc = + 0 #ifdef O_APPEND /* Not fully portable. */ - |O_APPEND + |O_APPEND #endif #ifdef O_TRUNC /* Not fully portable. */ - |O_TRUNC + |O_TRUNC #endif - )) - TAINT_PROPER("sysopen"); + ; + int modifyingmode = + O_WRONLY|O_RDWR|O_CREAT|appendtrunc; + int ismodifying; + + if (num_svs != 0) { + Perl_croak(aTHX_ "panic: sysopen with multiple args"); + } + /* It's not always + + O_RDONLY 0 + O_WRONLY 1 + O_RDWR 2 + + It might be (in OS/390 and Mac OS Classic it is) + + O_WRONLY 1 + O_RDONLY 2 + O_RDWR 3 + + This means that simple & with O_RDWR would look + like O_RDONLY is present. Therefore we have to + be more careful. + */ + if ((ismodifying = (rawmode & modifyingmode))) { + if ((ismodifying & O_WRONLY) == O_WRONLY || + (ismodifying & O_RDWR) == O_RDWR || + (ismodifying & (O_CREAT|appendtrunc))) + TAINT_PROPER("sysopen"); + } mode[ix++] = '#'; /* Marker to openn to use numeric "sysopen" */ #if defined(USE_64_BIT_RAWIO) && defined(O_LARGEFILE) @@ -187,6 +213,15 @@ Perl_do_openn(pTHX_ GV *gv, register char *name, I32 len, int as_raw, if (num_svs) { /* New style explict name, type is just mode and discipline/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); + goto say_false; + } +#endif /* USE_STDIO */ name = SvOK(*svp) ? SvPV(*svp, l) : ""; len = (I32)l; name = savepvn(name, len); @@ -222,7 +257,7 @@ Perl_do_openn(pTHX_ GV *gv, register char *name, I32 len, int as_raw, if (*name == '\0') { /* command is missing 19990114 */ if (ckWARN(WARN_PIPE)) - Perl_warner(aTHX_ WARN_PIPE, "Missing command in piped open"); + Perl_warner(aTHX_ packWARN(WARN_PIPE), "Missing command in piped open"); errno = EPIPE; goto say_false; } @@ -232,7 +267,7 @@ Perl_do_openn(pTHX_ GV *gv, register char *name, I32 len, int as_raw, if (!num_svs && name[len-1] == '|') { name[--len] = '\0' ; if (ckWARN(WARN_PIPE)) - Perl_warner(aTHX_ WARN_PIPE, "Can't open bidirectional pipe"); + Perl_warner(aTHX_ packWARN(WARN_PIPE), "Can't open bidirectional pipe"); } mode[0] = 'w'; writing = 1; @@ -246,6 +281,13 @@ Perl_do_openn(pTHX_ GV *gv, register char *name, I32 len, int as_raw, else { fp = PerlProc_popen(name,mode); } + if (num_svs) { + if (*type) { + if (PerlIO_apply_layers(aTHX_ fp, mode, type) != 0) { + goto say_false; + } + } + } } else if (*type == IoTYPE_WRONLY) { TAINT_PROPER("open"); @@ -281,8 +323,9 @@ Perl_do_openn(pTHX_ GV *gv, register char *name, I32 len, int as_raw, if (num_svs > 1) { Perl_croak(aTHX_ "More than one argument to '%c&' open",IoTYPE(io)); } - if (num_svs && SvIOK(*svp)) { + if (num_svs && (SvIOK(*svp) || (SvPOK(*svp) && looks_like_number(*svp)))) { fd = SvUV(*svp); + num_svs = 0; } else if (isDIGIT(*type)) { /*SUPPRESS 530*/ @@ -303,7 +346,7 @@ Perl_do_openn(pTHX_ GV *gv, register char *name, I32 len, int as_raw, } if (!thatio) { #ifdef EINVAL - SETERRNO(EINVAL,SS$_IVCHAN); + SETERRNO(EINVAL,SS_IVCHAN); #endif goto say_false; } @@ -429,7 +472,7 @@ Perl_do_openn(pTHX_ GV *gv, register char *name, I32 len, int as_raw, if (*name == '\0') { /* command is missing 19990114 */ if (ckWARN(WARN_PIPE)) - Perl_warner(aTHX_ WARN_PIPE, "Missing command in piped open"); + Perl_warner(aTHX_ packWARN(WARN_PIPE), "Missing command in piped open"); errno = EPIPE; goto say_false; } @@ -448,6 +491,14 @@ Perl_do_openn(pTHX_ GV *gv, register char *name, I32 len, int as_raw, 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 { if (num_svs) @@ -478,26 +529,28 @@ Perl_do_openn(pTHX_ GV *gv, register char *name, I32 len, int as_raw, } if (!fp) { if (ckWARN(WARN_NEWLINE) && IoTYPE(io) == IoTYPE_RDONLY && strchr(name, '\n')) - Perl_warner(aTHX_ WARN_NEWLINE, PL_warn_nl, "open"); + Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "open"); goto say_false; } if (ckWARN(WARN_IO)) { if ((IoTYPE(io) == IoTYPE_RDONLY) && (fp == PerlIO_stdout() || fp == PerlIO_stderr())) { - Perl_warner(aTHX_ WARN_IO, - "Filehandle STD%s opened only for input", - (fp == PerlIO_stdout()) ? "OUT" : "ERR"); + Perl_warner(aTHX_ packWARN(WARN_IO), + "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_ WARN_IO, - "Filehandle STDIN opened only for output"); + Perl_warner(aTHX_ packWARN(WARN_IO), + "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) { @@ -546,9 +599,7 @@ Perl_do_openn(pTHX_ GV *gv, register char *name, I32 len, int as_raw, } } if (savefd != fd) { - Pid_t pid; - SV *sv; - /* 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 */ @@ -558,25 +609,45 @@ Perl_do_openn(pTHX_ GV *gv, register char *name, I32 len, int as_raw, } #ifdef VMS if (savefd != PerlIO_fileno(PerlIO_stdin())) { - char newname[FILENAME_MAX+1]; - if (PerlIO_getname(fp, newname)) { - if (fd == PerlIO_fileno(PerlIO_stdout())) Perl_vmssetuserlnm(aTHX_ "SYS$OUTPUT", newname); - if (fd == PerlIO_fileno(PerlIO_stderr())) Perl_vmssetuserlnm(aTHX_ "SYS$ERROR", newname); - } + char newname[FILENAME_MAX+1]; + if (PerlIO_getname(fp, newname)) { + if (fd == PerlIO_fileno(PerlIO_stdout())) + Perl_vmssetuserlnm(aTHX_ "SYS$OUTPUT", newname); + if (fd == PerlIO_fileno(PerlIO_stderr())) + Perl_vmssetuserlnm(aTHX_ "SYS$ERROR", newname); + } } #endif - LOCK_FDPID_MUTEX; - sv = *av_fetch(PL_fdpid,fd,TRUE); - (void)SvUPGRADE(sv, SVt_IV); - pid = SvIVX(sv); - SvIVX(sv) = 0; - sv = *av_fetch(PL_fdpid,savefd,TRUE); - UNLOCK_FDPID_MUTEX; - (void)SvUPGRADE(sv, SVt_IV); - SvIVX(sv) = pid; - if (!was_fdopen) { - PerlIO_close(fp); + +#if !defined(WIN32) + /* PL_fdpid isn't used on Windows, so avoid this useless work. + * XXX Probably the same for a lot of other places. */ + { + Pid_t pid; + SV *sv; + + LOCK_FDPID_MUTEX; + sv = *av_fetch(PL_fdpid,fd,TRUE); + (void)SvUPGRADE(sv, SVt_IV); + pid = SvIVX(sv); + SvIVX(sv) = 0; + sv = *av_fetch(PL_fdpid,savefd,TRUE); + (void)SvUPGRADE(sv, SVt_IV); + SvIVX(sv) = pid; + UNLOCK_FDPID_MUTEX; + } +#endif + + if (was_fdopen) { + /* need to close fp without closing underlying fd */ + int ofd = PerlIO_fileno(fp); + int dupfd = PerlLIO_dup(ofd); + PerlIO_close(fp); + PerlLIO_dup2(dupfd,ofd); + PerlLIO_close(dupfd); } + else + PerlIO_close(fp); } fp = saveifp; PerlIO_clearerr(fp); @@ -595,8 +666,11 @@ Perl_do_openn(pTHX_ GV *gv, register char *name, I32 len, int as_raw, 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,num_svs,svp))) { + char *s = mode; + if (*s == 'I' || *s == '#') + 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; @@ -668,7 +742,7 @@ Perl_nextargv(pTHX_ register GV *gv) filegid = PL_statbuf.st_gid; if (!S_ISREG(PL_filemode)) { if (ckWARN_d(WARN_INPLACE)) - Perl_warner(aTHX_ WARN_INPLACE, + Perl_warner(aTHX_ packWARN(WARN_INPLACE), "Can't do inplace edit: %s is not a regular file", PL_oldname ); do_close(gv,FALSE); @@ -700,7 +774,7 @@ Perl_nextargv(pTHX_ register GV *gv) ) { if (ckWARN_d(WARN_INPLACE)) - Perl_warner(aTHX_ WARN_INPLACE, + Perl_warner(aTHX_ packWARN(WARN_INPLACE), "Can't do inplace edit: %s would not be unique", SvPVX(sv)); do_close(gv,FALSE); @@ -708,10 +782,10 @@ Perl_nextargv(pTHX_ register GV *gv) } #endif #ifdef HAS_RENAME -#if !defined(DOSISH) && !defined(__CYGWIN__) +#if !defined(DOSISH) && !defined(__CYGWIN__) && !defined(EPOC) if (PerlLIO_rename(PL_oldname,SvPVX(sv)) < 0) { if (ckWARN_d(WARN_INPLACE)) - Perl_warner(aTHX_ WARN_INPLACE, + Perl_warner(aTHX_ packWARN(WARN_INPLACE), "Can't rename %s to %s: %s, skipping file", PL_oldname, SvPVX(sv), Strerror(errno) ); do_close(gv,FALSE); @@ -727,7 +801,7 @@ Perl_nextargv(pTHX_ register GV *gv) (void)UNLINK(SvPVX(sv)); if (link(PL_oldname,SvPVX(sv)) < 0) { if (ckWARN_d(WARN_INPLACE)) - Perl_warner(aTHX_ WARN_INPLACE, + Perl_warner(aTHX_ packWARN(WARN_INPLACE), "Can't rename %s to %s: %s, skipping file", PL_oldname, SvPVX(sv), Strerror(errno) ); do_close(gv,FALSE); @@ -741,7 +815,7 @@ Perl_nextargv(pTHX_ register GV *gv) # ifndef VMS /* Don't delete; use automatic file versioning */ if (UNLINK(PL_oldname) < 0) { if (ckWARN_d(WARN_INPLACE)) - Perl_warner(aTHX_ WARN_INPLACE, + Perl_warner(aTHX_ packWARN(WARN_INPLACE), "Can't remove %s: %s, skipping file", PL_oldname, Strerror(errno) ); do_close(gv,FALSE); @@ -765,7 +839,7 @@ Perl_nextargv(pTHX_ register GV *gv) #endif { if (ckWARN_d(WARN_INPLACE)) - Perl_warner(aTHX_ WARN_INPLACE, "Can't do inplace edit on %s: %s", + Perl_warner(aTHX_ packWARN(WARN_INPLACE), "Can't do inplace edit on %s: %s", PL_oldname, Strerror(errno) ); do_close(gv,FALSE); continue; @@ -799,12 +873,12 @@ Perl_nextargv(pTHX_ register GV *gv) if (PerlLIO_stat(PL_oldname, &PL_statbuf) >= 0 && !S_ISREG(PL_statbuf.st_mode)) { - Perl_warner(aTHX_ WARN_INPLACE, + Perl_warner(aTHX_ packWARN(WARN_INPLACE), "Can't do inplace edit: %s is not a regular file", PL_oldname); } else - Perl_warner(aTHX_ WARN_INPLACE, "Can't open %s: %s", + Perl_warner(aTHX_ packWARN(WARN_INPLACE), "Can't open %s: %s", PL_oldname, Strerror(eno)); } } @@ -851,6 +925,7 @@ Perl_do_pipe(pTHX_ SV *sv, GV *rgv, GV *wgv) goto badexit; IoIFP(rstio) = PerlIO_fdopen(fd[0], "r"); IoOFP(wstio) = PerlIO_fdopen(fd[1], "w"); + IoOFP(rstio) = IoIFP(rstio); IoIFP(wstio) = IoOFP(wstio); IoTYPE(rstio) = IoTYPE_RDONLY; IoTYPE(wstio) = IoTYPE_WRONLY; @@ -882,7 +957,7 @@ Perl_do_close(pTHX_ GV *gv, bool not_implicit) 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); @@ -890,7 +965,7 @@ Perl_do_close(pTHX_ GV *gv, bool not_implicit) if (not_implicit) { if (ckWARN(WARN_UNOPENED)) /* no check for closed here */ report_evil_fh(gv, io, PL_op->op_type); - SETERRNO(EBADF,SS$_IVCHAN); + SETERRNO(EBADF,SS_IVCHAN); } return FALSE; } @@ -934,7 +1009,7 @@ Perl_io_close(pTHX_ IO *io, bool not_implicit) IoOFP(io) = IoIFP(io) = Nullfp; } else if (not_implicit) { - SETERRNO(EBADF,SS$_IVCHAN); + SETERRNO(EBADF,SS_IVCHAN); } return retval; @@ -971,7 +1046,7 @@ Perl_do_eof(pTHX_ GV *gv) PerlIO_set_cnt(IoIFP(io),-1); } if (PL_op->op_flags & OPf_SPECIAL) { /* not necessarily a real EOF yet? */ - if (!nextargv(PL_argvgv)) /* get another fp handy */ + if (gv != PL_argvgv || !nextargv(gv)) /* get another fp handy */ return TRUE; } else @@ -995,7 +1070,7 @@ Perl_do_tell(pTHX_ GV *gv) } if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) report_evil_fh(gv, io, PL_op->op_type); - SETERRNO(EBADF,RMS$_IFI); + SETERRNO(EBADF,RMS_IFI); return (Off_t)-1; } @@ -1014,7 +1089,7 @@ Perl_do_seek(pTHX_ GV *gv, Off_t pos, int whence) } if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) report_evil_fh(gv, io, PL_op->op_type); - SETERRNO(EBADF,RMS$_IFI); + SETERRNO(EBADF,RMS_IFI); return FALSE; } @@ -1028,7 +1103,7 @@ Perl_do_sysseek(pTHX_ GV *gv, Off_t pos, int whence) 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; } @@ -1110,7 +1185,7 @@ I32 fd; /* file descriptor */ Off_t length; /* length to set file to */ { struct flock fl; - struct stat filebuf; + Stat_t filebuf; if (PerlLIO_fstat(fd, &filebuf) < 0) return -1; @@ -1197,9 +1272,9 @@ Perl_do_print(pTHX_ register SV *sv, PerlIO *fp) } else if (DO_UTF8(sv)) { if (!sv_utf8_downgrade((sv = sv_mortalcopy(sv)), TRUE) - && ckWARN(WARN_UTF8)) + && ckWARN_d(WARN_UTF8)) { - Perl_warner(aTHX_ WARN_UTF8, "Wide character in print"); + Perl_warner(aTHX_ packWARN(WARN_UTF8), "Wide character in print"); } } tmps = SvPV(sv, len); @@ -1264,7 +1339,7 @@ Perl_my_stat(pTHX) PL_laststype = OP_STAT; PL_laststatval = PerlLIO_stat(s, &PL_statcache); if (PL_laststatval < 0 && ckWARN(WARN_NEWLINE) && strchr(s, '\n')) - Perl_warner(aTHX_ WARN_NEWLINE, PL_warn_nl, "stat"); + Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "stat"); return PL_laststatval; } } @@ -1282,17 +1357,26 @@ Perl_my_lstat(pTHX) Perl_croak(aTHX_ "The stat preceding -l _ wasn't an lstat"); return PL_laststatval; } - Perl_croak(aTHX_ "You can't use -l on a filehandle"); + if (ckWARN(WARN_IO)) { + Perl_warner(aTHX_ packWARN(WARN_IO), "Use of -l on filehandle %s", + GvENAME(cGVOP_gv)); + return (PL_laststatval = -1); + } } PL_laststype = OP_LSTAT; PL_statgv = Nullgv; sv = POPs; PUTBACK; + if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV && ckWARN(WARN_IO)) { + Perl_warner(aTHX_ packWARN(WARN_IO), "Use of -l on filehandle %s", + GvENAME((GV*) SvRV(sv))); + return (PL_laststatval = -1); + } sv_setpv(PL_statname,SvPV(sv, n_a)); PL_laststatval = PerlLIO_lstat(SvPV(sv, n_a),&PL_statcache); if (PL_laststatval < 0 && ckWARN(WARN_NEWLINE) && strchr(SvPV(sv, n_a), '\n')) - Perl_warner(aTHX_ WARN_NEWLINE, PL_warn_nl, "lstat"); + Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "lstat"); return PL_laststatval; } @@ -1333,7 +1417,7 @@ Perl_do_aexec5(pTHX_ SV *really, register SV **mark, register SV **sp, else PerlProc_execvp(PL_Argv[0],EXEC_ARGV_CAST(PL_Argv)); if (ckWARN(WARN_EXEC)) - Perl_warner(aTHX_ WARN_EXEC, "Can't exec \"%s\": %s", + Perl_warner(aTHX_ packWARN(WARN_EXEC), "Can't exec \"%s\": %s", (really ? tmps : PL_Argv[0]), Strerror(errno)); if (do_report) { int e = errno; @@ -1471,7 +1555,7 @@ Perl_do_exec3(pTHX_ char *cmd, int fd, int do_report) int e = errno; if (ckWARN(WARN_EXEC)) - Perl_warner(aTHX_ WARN_EXEC, "Can't exec \"%s\": %s", + Perl_warner(aTHX_ packWARN(WARN_EXEC), "Can't exec \"%s\": %s", PL_Argv[0], Strerror(errno)); if (do_report) { PerlLIO_write(fd, (void*)&e, sizeof(int)); @@ -2008,7 +2092,7 @@ Perl_do_semop(pTHX_ SV **mark, SV **sp) opbuf = SvPV(opstr, opsize); if (opsize < 3 * SHORTSIZE || (opsize % (3 * SHORTSIZE))) { - SETERRNO(EINVAL,LIB$_INVARG); + SETERRNO(EINVAL,LIB_INVARG); return -1; } SETERRNO(0,0); @@ -2065,7 +2149,7 @@ Perl_do_shmio(pTHX_ I32 optype, SV **mark, SV **sp) if (shmctl(id, IPC_STAT, &shmds) == -1) return -1; if (mpos < 0 || msize < 0 || mpos + msize > shmds.shm_segsz) { - SETERRNO(EFAULT,SS$_ACCVIO); /* can't do as caller requested */ + SETERRNO(EFAULT,SS_ACCVIO); /* can't do as caller requested */ return -1; } shm = (char *)shmat(id, (char*)NULL, (optype == OP_SHMREAD) ? SHM_RDONLY : 0); @@ -2192,7 +2276,7 @@ Perl_start_glob (pTHX_ SV *tmpglob, IO *io) } if (cxt) (void)lib$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);