/* doio.c * * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, * 2000, 2001, 2002, 2003, 2004, 2005, 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. * */ /* * "Far below them they saw the white waters pour into a foaming bowl, and * then swirl darkly about a deep oval basin in the rocks, until they found * their way out again through a narrow gate, and flowed away, fuming and * chattering, into calmer and more level reaches." */ /* This file contains functions that do the actual I/O on behalf of ops. * For example, pp_print() calls the do_print() function in this file for * each argument needing printing. */ #include "EXTERN.h" #define PERL_IN_DOIO_C #include "perl.h" #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM) #ifndef HAS_SEM #include #endif #ifdef HAS_MSG #include #endif #ifdef HAS_SHM #include # ifndef HAS_SHMAT_PROTOTYPE extern Shmat_t shmat (int, char *, int); # endif #endif #endif #ifdef I_UTIME # if defined(_MSC_VER) || defined(__MINGW32__) # include # else # include # endif #endif #ifdef O_EXCL # define OPEN_EXCL O_EXCL #else # define OPEN_EXCL 0 #endif #define PERL_MODE_MAX 8 #define PERL_FLAGS_MAX 10 #include bool Perl_do_open(pTHX_ GV *gv, register char *name, I32 len, int as_raw, int rawmode, int rawperm, PerlIO *supplied_fp) 3134 { 3134 return do_openn(gv, name, len, as_raw, rawmode, rawperm, supplied_fp, (SV **) NULL, 0); } bool Perl_do_open9(pTHX_ GV *gv, register char *name, I32 len, int as_raw, int rawmode, int rawperm, PerlIO *supplied_fp, SV *svs, I32 num_svs) ###### { ###### (void)num_svs; ###### return do_openn(gv, name, len, as_raw, rawmode, rawperm, supplied_fp, &svs, 1); } bool Perl_do_openn(pTHX_ GV *gv, register char *name, I32 len, int as_raw, int rawmode, int rawperm, PerlIO *supplied_fp, SV **svp, I32 num_svs) 21971 { dVAR; 21971 register IO *io = GvIOn(gv); 21971 PerlIO *saveifp = Nullfp; 21971 PerlIO *saveofp = Nullfp; 21971 int savefd = -1; 21971 char savetype = IoTYPE_CLOSED; 21971 int writing = 0; 21971 PerlIO *fp; 21971 int fd; 21971 int result; 21971 bool was_fdopen = FALSE; 21971 bool in_raw = 0, in_crlf = 0, out_raw = 0, out_crlf = 0; 21971 char *type = NULL; 21971 char mode[PERL_MODE_MAX]; /* stdio file mode ("r\0", "rb\0", "r+b\0" etc.) */ 21971 SV *namesv; 21971 Zero(mode,sizeof(mode),char); 21971 PL_forkprocess = 1; /* assume true if no fork */ /* Collect default raw/crlf info from the op */ 21971 if (PL_op && PL_op->op_type == OP_OPEN) { /* set up IO layers */ 18837 const U8 flags = PL_op->op_private; 18837 in_raw = (flags & OPpOPEN_IN_RAW); 18837 in_crlf = (flags & OPpOPEN_IN_CRLF); 18837 out_raw = (flags & OPpOPEN_OUT_RAW); 18837 out_crlf = (flags & OPpOPEN_OUT_CRLF); } /* If currently open - close before we re-open */ 21971 if (IoIFP(io)) { 1134 fd = PerlIO_fileno(IoIFP(io)); 1134 if (IoTYPE(io) == IoTYPE_STD) { /* This is a clone of one of STD* handles */ 1 result = 0; } 1133 else if (fd >= 0 && fd <= PL_maxsysfd) { /* This is one of the original STD* handles */ 759 saveifp = IoIFP(io); 759 saveofp = IoOFP(io); 759 savetype = IoTYPE(io); 759 savefd = fd; 759 result = 0; } 374 else if (IoTYPE(io) == IoTYPE_PIPE) 3 result = PerlProc_pclose(IoIFP(io)); 371 else if (IoIFP(io) != IoOFP(io)) { 148 if (IoOFP(io)) { 3 result = PerlIO_close(IoOFP(io)); 3 PerlIO_close(IoIFP(io)); /* clear stdio, fd already closed */ } else 145 result = PerlIO_close(IoIFP(io)); } else 223 result = PerlIO_close(IoIFP(io)); 1134 if (result == EOF && fd > PL_maxsysfd) { /* Why is this not Perl_warn*() call ? */ ###### PerlIO_printf(Perl_error_log, "Warning: unable to close filehandle %s properly.\n", GvENAME(gv)); } 1134 IoOFP(io) = IoIFP(io) = Nullfp; } 21971 if (as_raw) { /* sysopen style args, i.e. integer mode and permissions */ 3068 STRLEN ix = 0; 3068 const int appendtrunc = 0 #ifdef O_APPEND /* Not fully portable. */ |O_APPEND #endif #ifdef O_TRUNC /* Not fully portable. */ |O_TRUNC #endif 3068 ; 3068 const int modifyingmode = O_WRONLY|O_RDWR|O_CREAT|appendtrunc; 3068 int ismodifying; 3068 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. */ 3068 if ((ismodifying = (rawmode & modifyingmode))) { 3040 if ((ismodifying & O_WRONLY) == O_WRONLY || (ismodifying & O_RDWR) == O_RDWR || (ismodifying & (O_CREAT|appendtrunc))) 3040 TAINT_PROPER("sysopen"); } 3053 mode[ix++] = IoTYPE_NUMERIC; /* Marker to openn to use numeric "sysopen" */ #if defined(USE_64_BIT_RAWIO) && defined(O_LARGEFILE) 3053 rawmode |= O_LARGEFILE; /* Transparently largefiley. */ #endif 3053 IoTYPE(io) = PerlIO_intmode2str(rawmode, &mode[ix], &writing); 3053 namesv = sv_2mortal(newSVpvn(name,strlen(name))); 3053 num_svs = 1; 3053 svp = &namesv; 3053 type = Nullch; 3053 fp = PerlIO_openn(aTHX_ type, mode, -1, rawmode, rawperm, NULL, num_svs, svp); } else { /* Regular (non-sys) open */ 18903 char *oname = name; 18903 STRLEN olen = len; 18903 char *tend; 18903 int dodup = 0; 18903 PerlIO *that_fp = NULL; 18903 type = savepvn(name, len); 18903 tend = type+len; 18903 SAVEFREEPV(type); /* Lose leading and trailing white space */ 18920 for (; isSPACE(*type); type++) ; 18919 while (tend > type && isSPACE(tend[-1])) 16 *--tend = '\0'; 18903 if (num_svs) { /* New style explicit name, type is just mode and layer info */ #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 */ 1254 name = SvOK(*svp) ? savesvpv (*svp) : savepvn ("", 0); 1254 SAVEFREEPV(name); } else { 17649 name = type; 17649 len = tend-type; } 18903 IoTYPE(io) = *type; 18903 if ((*type == IoTYPE_RDWR) && /* scary */ (*(type+1) == IoTYPE_RDONLY || *(type+1) == IoTYPE_WRONLY) && ((!num_svs || (tend > type+1 && tend[-1] != IoTYPE_PIPE)))) { 37 TAINT_PROPER("open"); 37 mode[1] = *type++; 37 writing = 1; } 18903 if (*type == IoTYPE_PIPE) { 40 if (num_svs) { 2 if (type[1] != IoTYPE_STD) { unknown_open_mode: 4 Perl_croak(aTHX_ "Unknown open() mode '%.*s'", (int)olen, oname); } 2 type++; } 40 for (type++; isSPACE(*type); type++) ; 40 if (!num_svs) { 38 name = type; 38 len = tend-type; } 40 if (*name == '\0') { /* command is missing 19990114 */ 6 if (ckWARN(WARN_PIPE)) 2 Perl_warner(aTHX_ packWARN(WARN_PIPE), "Missing command in piped open"); 6 errno = EPIPE; 6 goto say_false; } 34 if ((*name == '-' && name[1] == '\0') || num_svs) 23 TAINT_ENV(); 34 TAINT_PROPER("piped open"); 33 if (!num_svs && name[len-1] == '|') { 2 name[--len] = '\0' ; 2 if (ckWARN(WARN_PIPE)) 1 Perl_warner(aTHX_ packWARN(WARN_PIPE), "Can't open bidirectional pipe"); } 33 mode[0] = 'w'; 33 writing = 1; #ifdef HAS_STRLCAT if (out_raw) strlcat(mode, "b", PERL_MODE_MAX); else if (out_crlf) strlcat(mode, "t", PERL_MODE_MAX); #else 33 if (out_raw) ###### strcat(mode, "b"); 33 else if (out_crlf) ###### strcat(mode, "t"); #endif 33 if (num_svs > 1) { ###### fp = PerlProc_popen_list(mode, num_svs, svp); } else { 33 fp = PerlProc_popen(name,mode); } 54 if (num_svs) { 2 if (*type) { ###### if (PerlIO_apply_layers(aTHX_ fp, mode, type) != 0) { ###### goto say_false; } } } } /* IoTYPE_PIPE */ 18863 else if (*type == IoTYPE_WRONLY) { 8886 TAINT_PROPER("open"); 8885 type++; 8885 if (*type == IoTYPE_WRONLY) { /* Two IoTYPE_WRONLYs in a row make for an IoTYPE_APPEND. */ 40 mode[0] = IoTYPE(io) = IoTYPE_APPEND; 40 type++; } else { 8845 mode[0] = 'w'; } 8885 writing = 1; #ifdef HAS_STRLCAT if (out_raw) strlcat(mode, "b", PERL_MODE_MAX); else if (out_crlf) strlcat(mode, "t", PERL_MODE_MAX); #else 8885 if (out_raw) ###### strcat(mode, "b"); 8885 else if (out_crlf) ###### strcat(mode, "t"); #endif 8885 if (*type == '&') { duplicity: 1531 dodup = PERLIO_DUP_FD; 1531 type++; 1531 if (*type == '=') { 28 dodup = 0; 28 type++; } 1531 if (!num_svs && !*type && supplied_fp) { /* "<+&" etc. is used by typemaps */ 17 fp = supplied_fp; } else { 1514 if (num_svs > 1) { ###### Perl_croak(aTHX_ "More than one argument to '%c&' open",IoTYPE(io)); } 1514 for (; isSPACE(*type); type++) ; 1514 if (num_svs && (SvIOK(*svp) || (SvPOK(*svp) && looks_like_number(*svp)))) { 5 fd = SvUV(*svp); 5 num_svs = 0; } 1509 else if (isDIGIT(*type)) { 23 fd = atoi(type); } else { 1486 const IO* thatio; 1486 if (num_svs) { 8 thatio = sv_2io(*svp); } else { 1478 GV *thatgv; 1478 thatgv = gv_fetchpv(type,FALSE,SVt_PVIO); 1478 thatio = GvIO(thatgv); } 1484 if (!thatio) { #ifdef EINVAL 1 SETERRNO(EINVAL,SS_IVCHAN); #endif 1 goto say_false; } 1483 if ((that_fp = IoIFP(thatio))) { /* Flush stdio buffer before dup. --mjd * Unfortunately SEEK_CURing 0 seems to * be optimized away on most platforms; * only Solaris and Linux seem to flush * on that. --jhi */ #ifdef USE_SFIO /* sfio fails to clear error on next sfwrite, contrary to documentation. -- Nick Clark */ if (PerlIO_seek(that_fp, 0, SEEK_CUR) == -1) PerlIO_clearerr(that_fp); #endif /* On the other hand, do all platforms * take gracefully to flushing a read-only * filehandle? Perhaps we should do * fsetpos(src)+fgetpos(dst)? --nik */ 1483 PerlIO_flush(that_fp); 1483 fd = PerlIO_fileno(that_fp); /* When dup()ing STDIN, STDOUT or STDERR * explicitly set appropriate access mode */ 1483 if (that_fp == PerlIO_stdout() || that_fp == PerlIO_stderr()) 1297 IoTYPE(io) = IoTYPE_WRONLY; 186 else if (that_fp == PerlIO_stdin()) 1 IoTYPE(io) = IoTYPE_RDONLY; /* When dup()ing a socket, say result is * one as well */ 185 else if (IoTYPE(thatio) == IoTYPE_SOCKET) ###### IoTYPE(io) = IoTYPE_SOCKET; } else ###### fd = -1; } 1511 if (!num_svs) 1505 type = Nullch; 1511 if (that_fp) { 1483 fp = PerlIO_fdupopen(aTHX_ that_fp, NULL, dodup); } else { 28 if (dodup) 5 fd = PerlLIO_dup(fd); else 23 was_fdopen = TRUE; 28 if (!(fp = PerlIO_openn(aTHX_ type,mode,fd,0,0,NULL,num_svs,svp))) { ###### if (dodup) ###### PerlLIO_close(fd); } } } } /* & */ else { 10686 for (; isSPACE(*type); type++) ; 7374 if (*type == IoTYPE_STD && (!type[1] || isSPACE(type[1]) || type[1] == ':')) { 1 type++; 1 fp = PerlIO_stdout(); 1 IoTYPE(io) = IoTYPE_STD; 1 if (num_svs > 1) { ###### Perl_croak(aTHX_ "More than one argument to '>%c' open",IoTYPE_STD); } } else { 7373 if (!num_svs) { 6277 namesv = sv_2mortal(newSVpvn(type,strlen(type))); 6277 num_svs = 1; 6277 svp = &namesv; 6277 type = Nullch; } 7373 fp = PerlIO_openn(aTHX_ type,mode,-1,0,0,NULL,num_svs,svp); } } /* !& */ 8902 if (!fp && type && *type && *type != ':' && !isIDFIRST(*type)) 1 goto unknown_open_mode; } /* IoTYPE_WRONLY */ 9977 else if (*type == IoTYPE_RDONLY) { 4726 for (type++; isSPACE(*type); type++) ; 4726 mode[0] = 'r'; #ifdef HAS_STRLCAT if (in_raw) strlcat(mode, "b", PERL_MODE_MAX); else if (in_crlf) strlcat(mode, "t", PERL_MODE_MAX); #else 4726 if (in_raw) ###### strcat(mode, "b"); 4726 else if (in_crlf) ###### strcat(mode, "t"); #endif 4726 if (*type == '&') { 20 goto duplicity; } 4706 if (*type == IoTYPE_STD && (!type[1] || isSPACE(type[1]) || type[1] == ':')) { ###### type++; ###### fp = PerlIO_stdin(); ###### IoTYPE(io) = IoTYPE_STD; ###### if (num_svs > 1) { ###### Perl_croak(aTHX_ "More than one argument to '<%c' open",IoTYPE_STD); } } else { 4706 if (!num_svs) { 4570 namesv = sv_2mortal(newSVpvn(type,strlen(type))); 4570 num_svs = 1; 4570 svp = &namesv; 4570 type = Nullch; } 4706 fp = PerlIO_openn(aTHX_ type,mode,-1,0,0,NULL,num_svs,svp); } 4706 if (!fp && type && *type && *type != ':' && !isIDFIRST(*type)) ###### goto unknown_open_mode; } /* IoTYPE_RDONLY */ 5251 else if ((num_svs && /* '-|...' or '...|' */ type[0] == IoTYPE_STD && type[1] == IoTYPE_PIPE) || (!num_svs && tend > type+1 && tend[-1] == IoTYPE_PIPE)) { 1144 if (num_svs) { 4 type += 2; /* skip over '-|' */ } else { 1140 *--tend = '\0'; 1185 while (tend > type && isSPACE(tend[-1])) 45 *--tend = '\0'; 1140 for (; isSPACE(*type); type++) ; 1140 name = type; 1140 len = tend-type; } 1144 if (*name == '\0') { /* command is missing 19990114 */ ###### if (ckWARN(WARN_PIPE)) ###### Perl_warner(aTHX_ packWARN(WARN_PIPE), "Missing command in piped open"); ###### errno = EPIPE; ###### goto say_false; } 1144 if (!(*name == '-' && name[1] == '\0') || num_svs) 1142 TAINT_ENV(); 1144 TAINT_PROPER("piped open"); 1143 mode[0] = 'r'; #ifdef HAS_STRLCAT if (in_raw) strlcat(mode, "b", PERL_MODE_MAX); else if (in_crlf) strlcat(mode, "t", PERL_MODE_MAX); #else 1143 if (in_raw) ###### strcat(mode, "b"); 1143 else if (in_crlf) ###### strcat(mode, "t"); #endif 1143 if (num_svs > 1) { ###### fp = PerlProc_popen_list(mode,num_svs,svp); } else { 1143 fp = PerlProc_popen(name,mode); } 1145 IoTYPE(io) = IoTYPE_PIPE; 1145 if (num_svs) { 4 for (; isSPACE(*type); type++) ; 4 if (*type) { ###### if (PerlIO_apply_layers(aTHX_ fp, mode, type) != 0) { ###### goto say_false; } } } } else { /* layer(Args) */ 4107 if (num_svs) 3 goto unknown_open_mode; 4104 name = type; 4104 IoTYPE(io) = IoTYPE_RDONLY; 4104 for (; isSPACE(*name); name++) ; 4104 mode[0] = 'r'; #ifdef HAS_STRLCAT if (in_raw) strlcat(mode, "b", PERL_MODE_MAX); else if (in_crlf) strlcat(mode, "t", PERL_MODE_MAX); #else 4104 if (in_raw) ###### strcat(mode, "b"); 4104 else if (in_crlf) ###### strcat(mode, "t"); #endif 4104 if (*name == '-' && name[1] == '\0') { 20 fp = PerlIO_stdin(); 20 IoTYPE(io) = IoTYPE_STD; } else { 4084 if (!num_svs) { 4084 namesv = sv_2mortal(newSVpvn(type,strlen(type))); 4084 num_svs = 1; 4084 svp = &namesv; 4084 type = Nullch; } 4084 fp = PerlIO_openn(aTHX_ type,mode,-1,0,0,NULL,num_svs,svp); } } } 21963 if (!fp) { 727 if (ckWARN(WARN_NEWLINE) && IoTYPE(io) == IoTYPE_RDONLY && strchr(name, '\n')) 3 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "open"); 3 goto say_false; } 21236 if (ckWARN(WARN_IO)) { 3712 if ((IoTYPE(io) == IoTYPE_RDONLY) && (fp == PerlIO_stdout() || fp == PerlIO_stderr())) { 2 Perl_warner(aTHX_ packWARN(WARN_IO), "Filehandle STD%s reopened as %s only for input", ((fp == PerlIO_stdout()) ? "OUT" : "ERR"), GvENAME(gv)); } 3710 else if ((IoTYPE(io) == IoTYPE_WRONLY) && fp == PerlIO_stdin()) { 1 Perl_warner(aTHX_ packWARN(WARN_IO), "Filehandle STDIN reopened as %s only for output", GvENAME(gv)); } } 21236 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 * type probe for socket-ness. */ 21236 if (IoTYPE(io) && IoTYPE(io) != IoTYPE_PIPE && IoTYPE(io) != IoTYPE_STD && fd >= 0) { 19102 if (PerlLIO_fstat(fd,&PL_statbuf) < 0) { /* If PerlIO claims to have fd we had better be able to fstat() it. */ ###### (void) PerlIO_close(fp); ###### goto say_false; } #ifndef PERL_MICRO 19102 if (S_ISSOCK(PL_statbuf.st_mode)) ###### IoTYPE(io) = IoTYPE_SOCKET; /* in case a socket was passed in to us */ #ifdef HAS_SOCKET 19102 else if ( #ifdef S_IFMT !(PL_statbuf.st_mode & S_IFMT) #else !PL_statbuf.st_mode #endif && IoTYPE(io) != IoTYPE_WRONLY /* Dups of STD* filehandles already have */ && IoTYPE(io) != IoTYPE_RDONLY /* type so they aren't marked as sockets */ ) { /* on OS's that return 0 on fstat()ed pipe */ ###### char tmpbuf[256]; ###### Sock_size_t buflen = sizeof tmpbuf; ###### if (PerlSock_getsockname(fd, (struct sockaddr *)tmpbuf, &buflen) >= 0 || errno != ENOTSOCK) ###### IoTYPE(io) = IoTYPE_SOCKET; /* some OS's return 0 on fstat()ed socket */ /* but some return 0 for streams too, sigh */ } #endif /* HAS_SOCKET */ #endif /* !PERL_MICRO */ } /* Eeek - FIXME !!! * If this is a standard handle we discard all the layer stuff * and just dup the fd into whatever was on the handle before ! */ 21236 if (saveifp) { /* must use old fp? */ /* If fd is less that PL_maxsysfd i.e. STDIN..STDERR then dup the new fileno down */ 758 if (saveofp) { 743 PerlIO_flush(saveofp); /* emulate PerlIO_close() */ 743 if (saveofp != saveifp) { /* was a socket? */ 26 PerlIO_close(saveofp); } } 758 if (savefd != fd) { /* 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 */ 758 if (PerlLIO_dup2(fd, savefd) < 0) { 2 (void)PerlIO_close(fp); 2 goto say_false; } #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); } } #endif #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. */ { 756 Pid_t pid; 756 SV *sv; LOCK_FDPID_MUTEX; 756 sv = *av_fetch(PL_fdpid,fd,TRUE); 756 SvUPGRADE(sv, SVt_IV); 756 pid = SvIVX(sv); 756 SvIV_set(sv, 0); 756 sv = *av_fetch(PL_fdpid,savefd,TRUE); 756 SvUPGRADE(sv, SVt_IV); 756 SvIV_set(sv, pid); UNLOCK_FDPID_MUTEX; } #endif 756 if (was_fdopen) { /* need to close fp without closing underlying fd */ 18 int ofd = PerlIO_fileno(fp); 18 int dupfd = PerlLIO_dup(ofd); #if defined(HAS_FCNTL) && defined(F_SETFD) /* Assume if we have F_SETFD we have F_GETFD */ 18 int coe = fcntl(ofd,F_GETFD); #endif 18 PerlIO_close(fp); 18 PerlLIO_dup2(dupfd,ofd); #if defined(HAS_FCNTL) && defined(F_SETFD) /* The dup trick has lost close-on-exec on ofd */ 18 fcntl(ofd,F_SETFD, coe); #endif 18 PerlLIO_close(dupfd); } else 738 PerlIO_close(fp); } 756 fp = saveifp; 756 PerlIO_clearerr(fp); 756 fd = PerlIO_fileno(fp); } #if defined(HAS_FCNTL) && defined(F_SETFD) 21234 if (fd >= 0) { 20298 int save_errno = errno; 20298 fcntl(fd,F_SETFD,fd > PL_maxsysfd); /* can change errno */ 20298 errno = save_errno; } #endif 21234 IoIFP(io) = fp; 21234 IoFLAGS(io) &= ~IOf_NOLINE; 21234 if (writing) { 11934 if (IoTYPE(io) == IoTYPE_SOCKET || (IoTYPE(io) == IoTYPE_WRONLY && fd >= 0 && S_ISCHR(PL_statbuf.st_mode)) ) { 486 char *s = mode; 486 if (*s == IoTYPE_IMPLICIT || *s == IoTYPE_NUMERIC) 1 s++; 486 *s = 'w'; 486 if (!(IoOFP(io) = PerlIO_openn(aTHX_ type,s,fd,0,0,NULL,0,svp))) { ###### PerlIO_close(fp); ###### IoIFP(io) = Nullfp; ###### goto say_false; } } else 11448 IoOFP(io) = fp; } 21234 return TRUE; say_false: 736 IoIFP(io) = saveifp; 736 IoOFP(io) = saveofp; 736 IoTYPE(io) = savetype; 736 return FALSE; } PerlIO * Perl_nextargv(pTHX_ register GV *gv) 80 { 80 register SV *sv; #ifndef FLEXFILENAMES int filedev; int fileino; #endif 80 Uid_t fileuid; 80 Gid_t filegid; 80 IO *io = GvIOp(gv); 80 if (!PL_argvoutgv) 30 PL_argvoutgv = gv_fetchpv("ARGVOUT",TRUE,SVt_PVIO); 80 if (io && (IoFLAGS(io) & IOf_ARGV) && (IoFLAGS(io) & IOf_START)) { 24 IoFLAGS(io) &= ~IOf_START; 24 if (PL_inplace) { 9 if (!PL_argvout_stack) 6 PL_argvout_stack = newAV(); 9 av_push(PL_argvout_stack, SvREFCNT_inc(PL_defoutgv)); } } 80 if (PL_filemode & (S_ISUID|S_ISGID)) { ###### PerlIO_flush(IoIFP(GvIOn(PL_argvoutgv))); /* chmod must follow last write */ #ifdef HAS_FCHMOD ###### if (PL_lastfd != -1) ###### (void)fchmod(PL_lastfd,PL_filemode); #else (void)PerlLIO_chmod(PL_oldname,PL_filemode); #endif } 80 PL_lastfd = -1; 80 PL_filemode = 0; 80 if (!GvAV(gv)) ###### return Nullfp; 83 while (av_len(GvAV(gv)) >= 0) { 44 STRLEN oldlen; 44 sv = av_shift(GvAV(gv)); 44 SAVEFREESV(sv); 44 sv_setsv(GvSVn(gv),sv); 44 SvSETMAGIC(GvSV(gv)); 44 PL_oldname = SvPVx(GvSV(gv), oldlen); 44 if (do_open(gv,PL_oldname,oldlen,PL_inplace!=0,O_RDONLY,0,Nullfp)) { 44 if (PL_inplace) { 17 TAINT_PROPER("inplace open"); 17 if (oldlen == 1 && *PL_oldname == '-') { ###### setdefout(gv_fetchpv("STDOUT",TRUE,SVt_PVIO)); ###### return IoIFP(GvIOp(gv)); } #ifndef FLEXFILENAMES filedev = PL_statbuf.st_dev; fileino = PL_statbuf.st_ino; #endif 17 PL_filemode = PL_statbuf.st_mode; 17 fileuid = PL_statbuf.st_uid; 17 filegid = PL_statbuf.st_gid; 17 if (!S_ISREG(PL_filemode)) { 3 if (ckWARN_d(WARN_INPLACE)) 2 Perl_warner(aTHX_ packWARN(WARN_INPLACE), "Can't do inplace edit: %s is not a regular file", PL_oldname ); 3 do_close(gv,FALSE); 3 continue; } 14 if (*PL_inplace) { 14 char *star = strchr(PL_inplace, '*'); 14 if (star) { 3 char *begin = PL_inplace; 3 sv_setpvn(sv, "", 0); 3 do { 3 sv_catpvn(sv, begin, star - begin); 3 sv_catpvn(sv, PL_oldname, oldlen); 3 begin = ++star; 3 } while ((star = strchr(begin, '*'))); 3 if (*begin) ###### sv_catpv(sv,begin); } else { 11 sv_catpv(sv,PL_inplace); } #ifndef FLEXFILENAMES if ((PerlLIO_stat(SvPVX_const(sv),&PL_statbuf) >= 0 && PL_statbuf.st_dev == filedev && PL_statbuf.st_ino == fileino) #ifdef DJGPP || ((_djstat_fail_bits & _STFAIL_TRUENAME)!=0) #endif ) { if (ckWARN_d(WARN_INPLACE)) Perl_warner(aTHX_ packWARN(WARN_INPLACE), "Can't do inplace edit: %"SVf" would not be unique", sv); do_close(gv,FALSE); continue; } #endif #ifdef HAS_RENAME #if !defined(DOSISH) && !defined(__CYGWIN__) && !defined(EPOC) 14 if (PerlLIO_rename(PL_oldname,SvPVX_const(sv)) < 0) { ###### 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) ); ###### do_close(gv,FALSE); ###### continue; } #else do_close(gv,FALSE); (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); #endif /* DOSISH */ #else (void)UNLINK(SvPVX_const(sv)); if (link(PL_oldname,SvPVX_const(sv)) < 0) { 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) ); do_close(gv,FALSE); continue; } (void)UNLINK(PL_oldname); #endif } else { #if !defined(DOSISH) && !defined(AMIGAOS) # ifndef VMS /* Don't delete; use automatic file versioning */ ###### if (UNLINK(PL_oldname) < 0) { ###### if (ckWARN_d(WARN_INPLACE)) ###### Perl_warner(aTHX_ packWARN(WARN_INPLACE), "Can't remove %s: %s, skipping file", PL_oldname, Strerror(errno) ); ###### do_close(gv,FALSE); ###### continue; } # endif #else Perl_croak(aTHX_ "Can't do inplace edit without backup"); #endif } 14 sv_setpvn(sv,">",!PL_inplace); 14 sv_catpvn(sv,PL_oldname,oldlen); 14 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)) #else 14 if (!do_open(PL_argvoutgv,(char*)SvPVX_const(sv),SvCUR(sv), PL_inplace!=0,O_WRONLY|O_CREAT|OPEN_EXCL,0666, Nullfp)) #endif { ###### if (ckWARN_d(WARN_INPLACE)) ###### Perl_warner(aTHX_ packWARN(WARN_INPLACE), "Can't do inplace edit on %s: %s", PL_oldname, Strerror(errno) ); ###### do_close(gv,FALSE); ###### continue; } 14 setdefout(PL_argvoutgv); 14 PL_lastfd = PerlIO_fileno(IoIFP(GvIOp(PL_argvoutgv))); 14 (void)PerlLIO_fstat(PL_lastfd,&PL_statbuf); #ifdef HAS_FCHMOD 14 (void)fchmod(PL_lastfd,PL_filemode); #else # if !(defined(WIN32) && defined(__BORLANDC__)) /* Borland runtime creates a readonly file! */ (void)PerlLIO_chmod(PL_oldname,PL_filemode); # endif #endif 14 if (fileuid != PL_statbuf.st_uid || filegid != PL_statbuf.st_gid) { #ifdef HAS_FCHOWN ###### (void)fchown(PL_lastfd,fileuid,filegid); #else #ifdef HAS_CHOWN (void)PerlLIO_chown(PL_oldname,fileuid,filegid); #endif #endif } } 41 return IoIFP(GvIOp(gv)); } else { ###### if (ckWARN_d(WARN_INPLACE)) { ###### const int eno = errno; ###### if (PerlLIO_stat(PL_oldname, &PL_statbuf) >= 0 && !S_ISREG(PL_statbuf.st_mode)) { ###### Perl_warner(aTHX_ packWARN(WARN_INPLACE), "Can't do inplace edit: %s is not a regular file", PL_oldname); } else ###### Perl_warner(aTHX_ packWARN(WARN_INPLACE), "Can't open %s: %s", PL_oldname, Strerror(eno)); } } } 39 if (io && (IoFLAGS(io) & IOf_ARGV)) 39 IoFLAGS(io) |= IOf_START; 39 if (PL_inplace) { 9 (void)do_close(PL_argvoutgv,FALSE); 9 if (io && (IoFLAGS(io) & IOf_ARGV) && PL_argvout_stack && AvFILLp(PL_argvout_stack) >= 0) { 9 GV *oldout = (GV*)av_pop(PL_argvout_stack); 9 setdefout(oldout); 9 SvREFCNT_dec(oldout); 9 return Nullfp; } ###### setdefout(gv_fetchpv("STDOUT",TRUE,SVt_PVIO)); } 30 return Nullfp; } #ifdef HAS_PIPE void Perl_do_pipe(pTHX_ SV *sv, GV *rgv, GV *wgv) ###### { ###### register IO *rstio; ###### register IO *wstio; ###### int fd[2]; ###### if (!rgv) ###### goto badexit; ###### if (!wgv) ###### goto badexit; ###### 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"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; ###### IoTYPE(wstio) = IoTYPE_WRONLY; ###### 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; } ###### sv_setsv(sv,&PL_sv_yes); ###### return; badexit: ###### sv_setsv(sv,&PL_sv_undef); ###### return; } #endif /* explicit renamed to avoid C++ conflict -- kja */ bool Perl_do_close(pTHX_ GV *gv, bool not_implicit) 18237 { 18237 bool retval; 18237 IO *io; 18237 if (!gv) ###### gv = PL_argvgv; 18237 if (!gv || SvTYPE(gv) != SVt_PVGV) { 6 if (not_implicit) 6 SETERRNO(EBADF,SS_IVCHAN); 6 return FALSE; } 18231 io = GvIO(gv); 18231 if (!io) { /* never opened */ 4 if (not_implicit) { 4 if (ckWARN(WARN_UNOPENED)) /* no check for closed here */ 3 report_evil_fh(gv, io, PL_op->op_type); 3 SETERRNO(EBADF,SS_IVCHAN); } 3 return FALSE; } 18227 retval = io_close(io, not_implicit); 18227 if (not_implicit) { 18164 IoLINES(io) = 0; 18164 IoPAGE(io) = 0; 18164 IoLINES_LEFT(io) = IoPAGE_LEN(io); } 18227 IoTYPE(io) = IoTYPE_CLOSED; 18227 return retval; } bool Perl_io_close(pTHX_ IO *io, bool not_implicit) 20728 { 20728 bool retval = FALSE; 20728 if (IoIFP(io)) { 20696 if (IoTYPE(io) == IoTYPE_PIPE) { 1172 const int status = PerlProc_pclose(IoIFP(io)); 1172 if (not_implicit) { 1163 STATUS_NATIVE_SET(status); 1163 retval = (STATUS_UNIX == 0); } else { 9 retval = (status != -1); } } 19524 else if (IoTYPE(io) == IoTYPE_STD) 16 retval = TRUE; else { 19508 if (IoOFP(io) && IoOFP(io) != IoIFP(io)) { /* a socket */ 469 bool prev_err = PerlIO_error(IoOFP(io)); 469 retval = (PerlIO_close(IoOFP(io)) != EOF && !prev_err); 469 PerlIO_close(IoIFP(io)); /* clear stdio, fd already closed */ } else { 19039 bool prev_err = PerlIO_error(IoIFP(io)); 19039 retval = (PerlIO_close(IoIFP(io)) != EOF && !prev_err); } } 20696 IoOFP(io) = IoIFP(io) = Nullfp; } 32 else if (not_implicit) { 26 SETERRNO(EBADF,SS_IVCHAN); } 20728 return retval; } bool Perl_do_eof(pTHX_ GV *gv) 1548 { 1548 register IO *io; 1548 int ch; 1548 io = GvIO(gv); 1548 if (!io) 18 return TRUE; 1530 else if (ckWARN(WARN_IO) && (IoTYPE(io) == IoTYPE_WRONLY)) 1 report_evil_fh(gv, io, OP_phoney_OUTPUT_ONLY); 1535 while (IoIFP(io)) { 1525 int saverrno; 1525 if (PerlIO_has_cntptr(IoIFP(io))) { /* (the code works without this) */ 1524 if (PerlIO_get_cnt(IoIFP(io)) > 0) /* cheat a little, since */ 1455 return FALSE; /* this is the most usual case */ } 70 saverrno = errno; /* getc and ungetc can stomp on errno */ 70 ch = PerlIO_getc(IoIFP(io)); 70 if (ch != EOF) { 20 (void)PerlIO_ungetc(IoIFP(io),ch); 20 errno = saverrno; 20 return FALSE; } 50 errno = saverrno; 50 if (PerlIO_has_cntptr(IoIFP(io)) && PerlIO_canset_cnt(IoIFP(io))) { 49 if (PerlIO_get_cnt(IoIFP(io)) < -1) ###### PerlIO_set_cnt(IoIFP(io),-1); } 50 if (PL_op->op_flags & OPf_SPECIAL) { /* not necessarily a real EOF yet? */ 9 if (gv != PL_argvgv || !nextargv(gv)) /* get another fp handy */ 4 return TRUE; } else 41 return TRUE; /* normal fp, definitely end of file */ } 10 return TRUE; } Off_t Perl_do_tell(pTHX_ GV *gv) 5392 { 5392 register IO *io = 0; 5392 register PerlIO *fp; 5392 if (gv && (io = GvIO(gv)) && (fp = IoIFP(io))) { #ifdef ULTRIX_STDIO_BOTCH if (PerlIO_eof(fp)) (void)PerlIO_seek(fp, 0L, 2); /* ultrix 1.2 workaround */ #endif 5384 return PerlIO_tell(fp); } 8 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) 2 report_evil_fh(gv, io, PL_op->op_type); 8 SETERRNO(EBADF,RMS_IFI); 8 return (Off_t)-1; } bool Perl_do_seek(pTHX_ GV *gv, Off_t pos, int whence) 29041 { 29041 register IO *io = 0; 29041 register PerlIO *fp; 29041 if (gv && (io = GvIO(gv)) && (fp = IoIFP(io))) { #ifdef ULTRIX_STDIO_BOTCH if (PerlIO_eof(fp)) (void)PerlIO_seek(fp, 0L, 2); /* ultrix 1.2 workaround */ #endif 29036 return PerlIO_seek(fp, pos, whence) >= 0; } 5 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) 2 report_evil_fh(gv, io, PL_op->op_type); 5 SETERRNO(EBADF,RMS_IFI); 5 return FALSE; } Off_t Perl_do_sysseek(pTHX_ GV *gv, Off_t pos, int whence) 43 { 43 register IO *io = 0; 43 register PerlIO *fp; 43 if (gv && (io = GvIO(gv)) && (fp = IoIFP(io))) 38 return PerlLIO_lseek(PerlIO_fileno(fp), pos, whence); 5 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) 2 report_evil_fh(gv, io, PL_op->op_type); 5 SETERRNO(EBADF,RMS_IFI); 5 return (Off_t)-1; } int Perl_mode_from_discipline(pTHX_ SV *discp) 11026 { 11026 int mode = O_BINARY; 11026 if (discp) { 984 STRLEN len; 984 const char *s = SvPV_const(discp,len); 2026 while (*s) { 1042 if (*s == ':') { 218 switch (s[1]) { case 'r': 40 if (s[2] == 'a' && s[3] == 'w' && (!s[4] || s[4] == ':' || isSPACE(s[4]))) { 40 mode = O_BINARY; 40 s += 4; 40 len -= 4; 40 break; } /* FALL THROUGH */ case 'c': 9 if (s[2] == 'r' && s[3] == 'l' && s[4] == 'f' && (!s[5] || s[5] == ':' || isSPACE(s[5]))) { 9 mode = O_TEXT; 9 s += 5; 9 len -= 5; 9 break; } /* FALL THROUGH */ default: 824 goto fail_discipline; } } 824 else if (isSPACE(*s)) { 28 ++s; 28 --len; } else { 965 const char *end; fail_discipline: 965 end = strchr(s+1, ':'); 965 if (!end) 962 end = s+len; #ifndef PERLIO_LAYERS Perl_croak(aTHX_ "IO layers (like '%.*s') unavailable", end-s, s); #else 965 len -= end-s; 965 s = end; #endif } } } 11026 return mode; } int Perl_do_binmode(pTHX_ PerlIO *fp, int iotype, int mode) ###### { /* The old body of this is now in non-LAYER part of perlio.c * This is a stub for any XS code which might have been calling it. */ ###### const char *name = ":raw"; #ifdef PERLIO_USING_CRLF if (!(mode & O_BINARY)) name = ":crlf"; #endif ###### return PerlIO_binmode(aTHX_ fp, iotype, mode, name); } #if !defined(HAS_TRUNCATE) && !defined(HAS_CHSIZE) I32 my_chsize(int fd, Off_t length) { #ifdef F_FREESP /* code courtesy of William Kucharski */ #define HAS_CHSIZE struct flock fl; Stat_t filebuf; if (PerlLIO_fstat(fd, &filebuf) < 0) return -1; if (filebuf.st_size < length) { /* extend file length */ if ((PerlLIO_lseek(fd, (length - 1), 0)) < 0) return -1; /* write a "0" byte */ if ((PerlLIO_write(fd, "", 1)) != 1) return -1; } else { /* truncate length */ fl.l_whence = 0; fl.l_len = 0; fl.l_start = length; fl.l_type = F_WRLCK; /* write lock on file space */ /* * This relies on the UNDOCUMENTED F_FREESP argument to * fcntl(2), which truncates the file so that it ends at the * position indicated by fl.l_start. * * Will minor miracles never cease? */ if (fcntl(fd, F_FREESP, &fl) < 0) return -1; } return 0; #else Perl_croak_nocontext("truncate not implemented"); #endif /* F_FREESP */ return -1; } #endif /* !HAS_TRUNCATE && !HAS_CHSIZE */ bool Perl_do_print(pTHX_ register SV *sv, PerlIO *fp) 1184661 { 1184661 register const char *tmps; 1184661 STRLEN len; /* assuming fp is checked earlier */ 1184661 if (!sv) ###### return TRUE; 1184661 switch (SvTYPE(sv)) { case SVt_NULL: 32 if (ckWARN(WARN_UNINITIALIZED)) 18 report_uninit(sv); 31 return TRUE; case SVt_IV: 20815 if (SvIOK(sv)) { 20815 if (SvGMAGICAL(sv)) ###### mg_get(sv); 20815 if (SvIsUV(sv)) ###### PerlIO_printf(fp, "%"UVuf, (UV)SvUVX(sv)); else 20815 PerlIO_printf(fp, "%"IVdf, (IV)SvIVX(sv)); 20815 return !PerlIO_error(fp); } /* FALL THROUGH */ default: 1163814 if (PerlIO_isutf8(fp)) { 2874 if (!SvUTF8(sv)) 865 sv_utf8_upgrade_flags(sv = sv_mortalcopy(sv), SV_GMAGIC|SV_UTF8_NO_ENCODING); } 1160940 else if (DO_UTF8(sv)) { 57 if (!sv_utf8_downgrade((sv = sv_mortalcopy(sv)), TRUE) && ckWARN_d(WARN_UTF8)) { 7 Perl_warner(aTHX_ packWARN(WARN_UTF8), "Wide character in print"); } } 1163814 tmps = SvPV_const(sv, len); 1163813 break; } /* To detect whether the process is about to overstep its * filesize limit we would need getrlimit(). We could then * also transparently raise the limit with setrlimit() -- * but only until the system hard limit/the filesystem limit, * at which we would get EPERM. Note that when using buffered * io the write failure can be delayed until the flush/close. --jhi */ 1163813 if (len && (PerlIO_write(fp,tmps,len) == 0)) ###### return FALSE; 1163813 return !PerlIO_error(fp); } I32 Perl_my_stat(pTHX) 57185 { 57185 dSP; 57185 IO *io; 57185 GV* gv; 57185 if (PL_op->op_flags & OPf_REF) { 8731 EXTEND(SP,1); 8731 gv = cGVOP_gv; do_fstat: 8914 io = GvIO(gv); 8914 if (io && IoIFP(io)) { 343 PL_statgv = gv; 343 sv_setpvn(PL_statname,"", 0); 343 PL_laststype = OP_STAT; 343 return (PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache)); } else { 8571 if (gv == PL_defgv) 8569 return PL_laststatval; 2 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) 1 report_evil_fh(gv, io, PL_op->op_type); 2 PL_statgv = Nullgv; 2 sv_setpvn(PL_statname,"", 0); 2 return (PL_laststatval = -1); } } 48454 else if (PL_op->op_private & OPpFT_STACKED) { 8 return PL_laststatval; } else { 48446 SV* sv = POPs; 48446 const char *s; 48446 STRLEN len; 48446 PUTBACK; 48446 if (SvTYPE(sv) == SVt_PVGV) { 2 gv = (GV*)sv; 2 goto do_fstat; } 48444 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) { 181 gv = (GV*)SvRV(sv); 181 goto do_fstat; } 48263 s = SvPV_const(sv, len); 48262 PL_statgv = Nullgv; 48262 sv_setpvn(PL_statname, s, len); 48262 s = SvPVX_const(PL_statname); /* s now NUL-terminated */ 48262 PL_laststype = OP_STAT; 48262 PL_laststatval = PerlLIO_stat(s, &PL_statcache); 48262 if (PL_laststatval < 0 && ckWARN(WARN_NEWLINE) && strchr(s, '\n')) ###### Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "stat"); 48262 return PL_laststatval; } } static const char no_prev_lstat[] = "The stat preceding -l _ wasn't an lstat"; I32 Perl_my_lstat(pTHX) 383 { 383 dSP; 383 SV *sv; 383 if (PL_op->op_flags & OPf_REF) { 151 EXTEND(SP,1); 151 if (cGVOP_gv == PL_defgv) { 149 if (PL_laststype != OP_LSTAT) 2 Perl_croak(aTHX_ no_prev_lstat); 147 return PL_laststatval; } 2 if (ckWARN(WARN_IO)) { 1 Perl_warner(aTHX_ packWARN(WARN_IO), "Use of -l on filehandle %s", GvENAME(cGVOP_gv)); 1 return (PL_laststatval = -1); } } 232 else if (ckWARN(WARN_IO) && PL_laststype != OP_LSTAT && (PL_op->op_private & OPpFT_STACKED)) ###### Perl_croak(aTHX_ no_prev_lstat); 233 PL_laststype = OP_LSTAT; 233 PL_statgv = Nullgv; 233 sv = POPs; 233 PUTBACK; 233 if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV && ckWARN(WARN_IO)) { 1 Perl_warner(aTHX_ packWARN(WARN_IO), "Use of -l on filehandle %s", GvENAME((GV*) SvRV(sv))); 1 return (PL_laststatval = -1); } /* XXX Do really need to be calling SvPV() all these times? */ 232 sv_setpv(PL_statname,SvPV_nolen_const(sv)); 232 PL_laststatval = PerlLIO_lstat(SvPV_nolen_const(sv),&PL_statcache); 232 if (PL_laststatval < 0 && ckWARN(WARN_NEWLINE) && strchr(SvPV_nolen_const(sv), '\n')) ###### Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "lstat"); 232 return PL_laststatval; } #ifndef OS2 bool Perl_do_aexec(pTHX_ SV *really, register SV **mark, register SV **sp) 58 { 58 return do_aexec5(really, mark, sp, 0, 0); } #endif bool Perl_do_aexec5(pTHX_ SV *really, register SV **mark, register SV **sp, int fd, int do_report) 86 { dVAR; #if defined(MACOS_TRADITIONAL) || defined(SYMBIAN) Perl_croak(aTHX_ "exec? I'm not *that* kind of operating system"); #else 86 register char **a; 86 const char *tmps = Nullch; 86 if (sp > mark) { 86 New(401,PL_Argv, sp - mark + 1, char*); 86 a = PL_Argv; 449 while (++mark <= sp) { 363 if (*mark) 363 *a++ = (char*)SvPV_nolen_const(*mark); else ###### *a++ = ""; } 86 *a = Nullch; 86 if (really) 1 tmps = SvPV_nolen_const(really); 86 if ((!really && *PL_Argv[0] != '/') || (really && *tmps != '/')) /* will execvp use PATH? */ 50 TAINT_ENV(); /* testing IFS here is overkill, probably */ 86 PERL_FPU_PRE_EXEC 86 if (really && *tmps) 1 PerlProc_execvp(tmps,EXEC_ARGV_CAST(PL_Argv)); else 85 PerlProc_execvp(PL_Argv[0],EXEC_ARGV_CAST(PL_Argv)); 5 PERL_FPU_POST_EXEC 5 if (ckWARN(WARN_EXEC)) 2 Perl_warner(aTHX_ packWARN(WARN_EXEC), "Can't exec \"%s\": %s", (really ? tmps : PL_Argv[0]), Strerror(errno)); 5 if (do_report) { ###### int e = errno; ###### PerlLIO_write(fd, (void*)&e, sizeof(int)); ###### PerlLIO_close(fd); } } 5 do_execfree(); #endif 5 return FALSE; } void Perl_do_execfree(pTHX) 4428 { 4428 Safefree(PL_Argv); 4428 PL_Argv = Null(char **); 4428 Safefree(PL_Cmd); 4428 PL_Cmd = Nullch; } #if !defined(OS2) && !defined(WIN32) && !defined(DJGPP) && !defined(EPOC) && !defined(SYMBIAN) && !defined(MACOS_TRADITIONAL) bool Perl_do_exec(pTHX_ char *cmd) 6 { 6 return do_exec3(cmd,0,0); } bool Perl_do_exec3(pTHX_ char *cmd, int fd, int do_report) 4373 { dVAR; 4373 register char **a; 4373 register char *s; 4389 while (*cmd && isSPACE(*cmd)) 16 cmd++; /* save an extra exec if possible */ #ifdef CSH { 4373 char flags[PERL_FLAGS_MAX]; 4373 if (strnEQ(cmd,PL_cshname,PL_cshlen) && strnEQ(cmd+PL_cshlen," -c",3)) { #ifdef HAS_STRLCPY strlcpy(flags, "-c", PERL_FLAGS_MAX); #else 3 strcpy(flags,"-c"); #endif 3 s = cmd+PL_cshlen+3; 3 if (*s == 'f') { 3 s++; #ifdef HAS_STRLCPY strlcat(flags, "f", PERL_FLAGS_MAX); #else 3 strcat(flags,"f"); #endif } 3 if (*s == ' ') 3 s++; 3 if (*s++ == '\'') { 3 char *ncmd = s; 118 while (*s) 115 s++; 3 if (s[-1] == '\n') ###### *--s = '\0'; 3 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; } } } } #endif /* CSH */ /* see if there are shell metacharacters in it */ 4373 if (*cmd == '.' && isSPACE(cmd[1])) 4373 goto doshell; 4373 if (strnEQ(cmd,"exec",4) && isSPACE(cmd[4])) 4373 goto doshell; 4373 for (s = cmd; *s && isALNUM(*s); s++) ; /* catch VAR=val gizmo */ 4373 if (*s == '=') ###### goto doshell; 170012 for (s = cmd; *s; s++) { 168294 if (*s != ' ' && !isALPHA(*s) && strchr("$&*(){}[]'\";\\|?<>~`\n",*s)) { 2655 if (*s == '\n' && !s[1]) { ###### *s = '\0'; ###### break; } /* handle the 2>&1 construct at the end */ 2655 if (*s == '>' && s[1] == '&' && s[2] == '1' && s > cmd + 1 && s[-1] == '2' && isSPACE(s[-2]) && (!s[3] || isSPACE(s[3]))) { 187 const char *t = s + 3; 187 while (*t && isSPACE(*t)) ###### ++t; 187 if (!*t && (PerlLIO_dup2(1,2) != -1)) { 187 s[-2] = '\0'; 187 break; } } doshell: 2468 PERL_FPU_PRE_EXEC 2468 PerlProc_execl(PL_sh_path, "sh", "-c", cmd, (char*)0); ###### PERL_FPU_POST_EXEC ###### return FALSE; } } 1905 New(402,PL_Argv, (s - cmd) / 2 + 2, char*); 1905 PL_Cmd = savepvn(cmd, s-cmd); 1905 a = PL_Argv; 3451 for (s = PL_Cmd; *s;) { 4620 while (*s && isSPACE(*s)) s++; 3451 if (*s) 3451 *(a++) = s; 76777 while (*s && !isSPACE(*s)) s++; 3451 if (*s) 1546 *s++ = '\0'; } 1905 *a = Nullch; 1905 if (PL_Argv[0]) { 1905 PERL_FPU_PRE_EXEC 1905 PerlProc_execvp(PL_Argv[0],PL_Argv); 1 PERL_FPU_POST_EXEC 1 if (errno == ENOEXEC) { /* for system V NIH syndrome */ ###### do_execfree(); ###### goto doshell; } { 1 if (ckWARN(WARN_EXEC)) ###### Perl_warner(aTHX_ packWARN(WARN_EXEC), "Can't exec \"%s\": %s", PL_Argv[0], Strerror(errno)); 1 if (do_report) { ###### int e = errno; ###### PerlLIO_write(fd, (void*)&e, sizeof(int)); ###### PerlLIO_close(fd); } } } 1 do_execfree(); 1 return FALSE; } #endif /* OS2 || WIN32 */ I32 Perl_apply(pTHX_ I32 type, register SV **mark, register SV **sp) 3382 { 3382 register I32 val; 3382 register I32 tot = 0; 3382 const char *what; 3382 const char *s; 3382 SV **oldmark = mark; #define APPLY_TAINT_PROPER() \ STMT_START { \ if (PL_tainted) { TAINT_PROPER(what); } \ } STMT_END /* This is a first heuristic; it doesn't catch tainting magic. */ 3382 if (PL_tainting) { 641 while (++mark <= sp) { 338 if (SvTAINTED(*mark)) { 13 TAINT; break; } } 316 mark = oldmark; } 3382 switch (type) { case OP_CHMOD: 891 what = "chmod"; 891 APPLY_TAINT_PROPER(); 890 if (++mark <= sp) { 890 val = SvIVx(*mark); 890 APPLY_TAINT_PROPER(); 890 tot = sp - mark; 1781 while (++mark <= sp) { 891 const char *name = SvPV_nolen_const(*mark); 891 APPLY_TAINT_PROPER(); 891 if (PerlLIO_chmod(name, val)) 159 tot--; } } 2 break; #ifdef HAS_CHOWN case OP_CHOWN: 2 what = "chown"; 2 APPLY_TAINT_PROPER(); 1 if (sp - mark > 2) { ###### register I32 val2; ###### val = SvIVx(*++mark); ###### val2 = SvIVx(*++mark); ###### APPLY_TAINT_PROPER(); ###### tot = sp - mark; ###### while (++mark <= sp) { ###### const char *name = SvPV_nolen_const(*mark); ###### APPLY_TAINT_PROPER(); ###### if (PerlLIO_chown(name, val, val2)) ###### tot--; } } 304 break; #endif /* XXX Should we make lchown() directly available from perl? For now, we'll let Configure test for HAS_LCHOWN, but do nothing in the core. --AD 5/1998 */ #ifdef HAS_KILL case OP_KILL: 304 what = "kill"; 304 APPLY_TAINT_PROPER(); 119 if (mark == sp) ###### break; 119 s = SvPVx_nolen_const(*++mark); 119 if (isALPHA(*s)) { 14 if (*s == 'S' && s[1] == 'I' && s[2] == 'G') ###### s += 3; 14 if ((val = whichsig(s)) < 0) ###### Perl_croak(aTHX_ "Unrecognized signal name \"%s\"",s); } else 105 val = SvIVx(*mark); 119 APPLY_TAINT_PROPER(); 119 tot = sp - mark; #ifdef VMS /* kill() doesn't do process groups (job trees?) under VMS */ if (val < 0) val = -val; if (val == SIGKILL) { # include /* Use native sys$delprc() to insure that target process is * deleted; supervisor-mode images don't pay attention to * CRTL's emulation of Unix-style signals and kill() */ while (++mark <= sp) { I32 proc = SvIVx(*mark); register unsigned long int __vmssts; APPLY_TAINT_PROPER(); if (!((__vmssts = sys$delprc(&proc,0)) & 1)) { tot--; switch (__vmssts) { case SS$_NONEXPR: case SS$_NOSUCHNODE: SETERRNO(ESRCH,__vmssts); break; case SS$_NOPRIV: SETERRNO(EPERM,__vmssts); break; default: SETERRNO(EVMSERR,__vmssts); } } } break; } #endif 119 if (val < 0) { ###### val = -val; ###### while (++mark <= sp) { ###### I32 proc = SvIVx(*mark); ###### APPLY_TAINT_PROPER(); #ifdef HAS_KILLPG ###### if (PerlProc_killpg(proc,val)) /* BSD */ #else if (PerlProc_kill(-proc,val)) /* SYSV */ #endif ###### tot--; } } else { 137 while (++mark <= sp) { 18 I32 proc = SvIVx(*mark); 18 APPLY_TAINT_PROPER(); 18 if (PerlProc_kill(proc, val)) ###### tot--; } } 1952 break; #endif case OP_UNLINK: 1952 what = "unlink"; 1952 APPLY_TAINT_PROPER(); 1951 tot = sp - mark; 4385 while (++mark <= sp) { 2434 s = SvPV_nolen_const(*mark); 2434 APPLY_TAINT_PROPER(); 2434 if (PL_euid || PL_unsafe) { 2434 if (UNLINK(s)) 987 tot--; } else { /* don't let root wipe out directories without -U */ ###### if (PerlLIO_lstat(s,&PL_statbuf) < 0 || S_ISDIR(PL_statbuf.st_mode)) ###### tot--; else { ###### if (UNLINK(s)) ###### tot--; } } } 233 break; #ifdef HAS_UTIME case OP_UTIME: 233 what = "utime"; 233 APPLY_TAINT_PROPER(); 232 if (sp - mark > 2) { #if defined(I_UTIME) || defined(VMS) 230 struct utimbuf utbuf; 230 struct utimbuf *utbufp = &utbuf; #else struct { Time_t actime; Time_t modtime; } utbuf; void *utbufp = &utbuf; #endif 230 SV* accessed = *++mark; 230 SV* modified = *++mark; /* Be like C, and if both times are undefined, let the C * library figure out what to do. This usually means * "current time". */ 230 if ( accessed == &PL_sv_undef && modified == &PL_sv_undef ) ###### utbufp = NULL; else { 230 Zero(&utbuf, sizeof utbuf, char); #ifdef BIG_TIME utbuf.actime = (Time_t)SvNVx(accessed); /* time accessed */ utbuf.modtime = (Time_t)SvNVx(modified); /* time modified */ #else 230 utbuf.actime = (Time_t)SvIVx(accessed); /* time accessed */ 230 utbuf.modtime = (Time_t)SvIVx(modified); /* time modified */ #endif } 230 APPLY_TAINT_PROPER(); 230 tot = sp - mark; 460 while (++mark <= sp) { 230 char *name = SvPV_nolen(*mark); 230 APPLY_TAINT_PROPER(); 230 if (PerlLIO_utime(name, utbufp)) 1 tot--; } } else 2 tot = 0; break; #endif } 3193 return tot; #undef APPLY_TAINT_PROPER } /* Do the permissions allow some operation? Assumes statcache already set. */ #ifndef VMS /* VMS' cando is in vms.c */ bool Perl_cando(pTHX_ Mode_t mode, Uid_t effective, register const Stat_t *statbufp) /* Note: we use "effective" both for uids and gids. * Here we are betting on Uid_t being equal or wider than Gid_t. */ 2499 { #ifdef DOSISH /* [Comments and code from Len Reed] * MS-DOS "user" is similar to UNIX's "superuser," but can't write * to write-protected files. The execute permission bit is set * by the Miscrosoft C library stat() function for the following: * .exe files * .com files * .bat files * directories * All files and directories are readable. * Directories and special files, e.g. "CON", cannot be * write-protected. * [Comment by Tom Dinger -- a directory can have the write-protect * bit set in the file system, but DOS permits changes to * the directory anyway. In addition, all bets are off * here for networked software, such as Novell and * Sun's PC-NFS.] */ /* Atari stat() does pretty much the same thing. we set x_bit_set_in_stat * too so it will actually look into the files for magic numbers */ return (mode & statbufp->st_mode) ? TRUE : FALSE; #else /* ! DOSISH */ 2499 if ((effective ? PL_euid : PL_uid) == 0) { /* root is special */ ###### if (mode == S_IXUSR) { ###### if (statbufp->st_mode & 0111 || S_ISDIR(statbufp->st_mode)) ###### return TRUE; } else ###### return TRUE; /* root reads and writes anything */ ###### return FALSE; } 2499 if (statbufp->st_uid == (effective ? PL_euid : PL_uid) ) { 1742 if (statbufp->st_mode & mode) 1730 return TRUE; /* ok as "user" */ } 757 else if (ingroup(statbufp->st_gid,effective)) { ###### if (statbufp->st_mode & mode >> 3) ###### return TRUE; /* ok as "group" */ } 757 else if (statbufp->st_mode & mode >> 6) 757 return TRUE; /* ok as "other" */ 12 return FALSE; #endif /* ! DOSISH */ } #endif /* ! VMS */ bool Perl_ingroup(pTHX_ Gid_t testgid, Uid_t effective) 757 { #ifdef MACOS_TRADITIONAL /* This is simply not correct for AppleShare, but fix it yerself. */ return TRUE; #else 757 if (testgid == (effective ? PL_egid : PL_gid)) ###### return TRUE; #ifdef HAS_GETGROUPS #ifndef NGROUPS #define NGROUPS 32 #endif { 757 Groups_t gary[NGROUPS]; 757 I32 anum; 757 anum = getgroups(NGROUPS,gary); 2271 while (--anum >= 0) 1514 if (gary[anum] == testgid) ###### return TRUE; } #endif 757 return FALSE; #endif } #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM) I32 Perl_do_ipcget(pTHX_ I32 optype, SV **mark, SV **sp) 6 { 6 key_t key = (key_t)SvNVx(*++mark); 6 const I32 n = (optype == OP_MSGGET) ? 0 : SvIVx(*++mark); 6 const I32 flags = SvIVx(*++mark); 6 (void)sp; 6 SETERRNO(0,0); 6 switch (optype) { #ifdef HAS_MSG case OP_MSGGET: 3 return msgget(key, flags); #endif #ifdef HAS_SEM case OP_SEMGET: 2 return semget(key, n, flags); #endif #ifdef HAS_SHM case OP_SHMGET: 1 return shmget(key, n, flags); #endif #if !defined(HAS_MSG) || !defined(HAS_SEM) || !defined(HAS_SHM) default: Perl_croak(aTHX_ "%s not implemented", PL_op_desc[optype]); #endif } ###### return -1; /* should never happen */ } I32 Perl_do_ipcctl(pTHX_ I32 optype, SV **mark, SV **sp) 22 { 22 SV *astr; 22 char *a; 22 STRLEN infosize; 22 I32 getinfo; 22 I32 ret = -1; 22 const I32 id = SvIVx(*++mark); 22 const I32 n = (optype == OP_SEMCTL) ? SvIVx(*++mark) : 0; 22 const I32 cmd = SvIVx(*++mark); 22 (void)sp; 22 astr = *++mark; 22 infosize = 0; 22 getinfo = (cmd == IPC_STAT); 22 switch (optype) { #ifdef HAS_MSG case OP_MSGCTL: 6 if (cmd == IPC_STAT || cmd == IPC_SET) 3 infosize = sizeof(struct msqid_ds); 3 break; #endif #ifdef HAS_SHM case OP_SHMCTL: 1 if (cmd == IPC_STAT || cmd == IPC_SET) ###### infosize = sizeof(struct shmid_ds); ###### break; #endif #ifdef HAS_SEM case OP_SEMCTL: #ifdef Semctl 15 if (cmd == IPC_STAT || cmd == IPC_SET) 2 infosize = sizeof(struct semid_ds); 13 else if (cmd == GETALL || cmd == SETALL) { 8 struct semid_ds semds; 8 union semun semun; #ifdef EXTRA_F_IN_SEMUN_BUF semun.buff = &semds; #else 8 semun.buf = &semds; #endif 8 getinfo = (cmd == GETALL); 8 if (Semctl(id, 0, IPC_STAT, semun) == -1) ###### return -1; 8 infosize = semds.sem_nsems * sizeof(short); /* "short" is technically wrong but much more portable than guessing about u_?short(_t)? */ } #else Perl_croak(aTHX_ "%s not implemented", PL_op_desc[optype]); #endif break; #endif #if !defined(HAS_MSG) || !defined(HAS_SEM) || !defined(HAS_SHM) default: Perl_croak(aTHX_ "%s not implemented", PL_op_desc[optype]); #endif } 22 if (infosize) { 13 if (getinfo) { 9 SvPV_force_nolen(astr); 9 a = SvGROW(astr, infosize+1); } else { 4 STRLEN len; 4 a = SvPV(astr, len); 4 if (len != infosize) ###### Perl_croak(aTHX_ "Bad arg length for %s, is %lu, should be %ld", PL_op_desc[optype], (unsigned long)len, (long)infosize); } } else { 9 IV i = SvIV(astr); 9 a = INT2PTR(char *,i); /* ouch */ } 22 SETERRNO(0,0); 22 switch (optype) { #ifdef HAS_MSG case OP_MSGCTL: 6 ret = msgctl(id, cmd, (struct msqid_ds *)a); 6 break; #endif #ifdef HAS_SEM case OP_SEMCTL: { #ifdef Semctl 15 union semun unsemds; #ifdef EXTRA_F_IN_SEMUN_BUF unsemds.buff = (struct semid_ds *)a; #else 15 unsemds.buf = (struct semid_ds *)a; #endif 15 ret = Semctl(id, n, cmd, unsemds); #else Perl_croak(aTHX_ "%s not implemented", PL_op_desc[optype]); #endif } 15 break; #endif #ifdef HAS_SHM case OP_SHMCTL: 1 ret = shmctl(id, cmd, (struct shmid_ds *)a); break; #endif } 22 if (getinfo && ret >= 0) { 9 SvCUR_set(astr, infosize); 9 *SvEND(astr) = '\0'; 9 SvSETMAGIC(astr); } 22 return ret; } I32 Perl_do_msgsnd(pTHX_ SV **mark, SV **sp) 3 { #ifdef HAS_MSG 3 SV *mstr; 3 const char *mbuf; 3 I32 msize, flags; 3 STRLEN len; 3 const I32 id = SvIVx(*++mark); 3 (void)sp; 3 mstr = *++mark; 3 flags = SvIVx(*++mark); 3 mbuf = SvPV_const(mstr, len); 3 if ((msize = len - sizeof(long)) < 0) ###### Perl_croak(aTHX_ "Arg too short for msgsnd"); 3 SETERRNO(0,0); 3 return msgsnd(id, (struct msgbuf *)mbuf, msize, flags); #else Perl_croak(aTHX_ "msgsnd not implemented"); #endif } I32 Perl_do_msgrcv(pTHX_ SV **mark, SV **sp) 3 { #ifdef HAS_MSG 3 SV *mstr; 3 char *mbuf; 3 long mtype; 3 I32 msize, flags, ret; 3 const I32 id = SvIVx(*++mark); 3 (void)sp; 3 mstr = *++mark; /* suppress warning when reading into undef var --jhi */ 3 if (! SvOK(mstr)) 2 sv_setpvn(mstr, "", 0); 3 msize = SvIVx(*++mark); 3 mtype = (long)SvIVx(*++mark); 3 flags = SvIVx(*++mark); 3 SvPV_force_nolen(mstr); 3 mbuf = SvGROW(mstr, sizeof(long)+msize+1); 3 SETERRNO(0,0); 3 ret = msgrcv(id, (struct msgbuf *)mbuf, msize, mtype, flags); 3 if (ret >= 0) { 3 SvCUR_set(mstr, sizeof(long)+ret); 3 *SvEND(mstr) = '\0'; #ifndef INCOMPLETE_TAINTS /* who knows who has been playing with this message? */ 3 SvTAINTED_on(mstr); #endif } 3 return ret; #else Perl_croak(aTHX_ "msgrcv not implemented"); #endif } I32 Perl_do_semop(pTHX_ SV **mark, SV **sp) 1 { #ifdef HAS_SEM 1 SV *opstr; 1 const char *opbuf; 1 STRLEN opsize; 1 const I32 id = SvIVx(*++mark); 1 (void)sp; 1 opstr = *++mark; 1 opbuf = SvPV_const(opstr, opsize); 1 if (opsize < 3 * SHORTSIZE || (opsize % (3 * SHORTSIZE))) { ###### SETERRNO(EINVAL,LIB_INVARG); ###### return -1; } 1 SETERRNO(0,0); /* We can't assume that sizeof(struct sembuf) == 3 * sizeof(short). */ { 1 const int nsops = opsize / (3 * sizeof (short)); 1 int i = nsops; 1 short *ops = (short *) opbuf; 1 short *o = ops; 1 struct sembuf *temps, *t; 1 I32 result; 1 New (0, temps, nsops, struct sembuf); 1 t = temps; 2 while (i--) { 1 t->sem_num = *o++; 1 t->sem_op = *o++; 1 t->sem_flg = *o++; 1 t++; } 1 result = semop(id, temps, nsops); 1 t = temps; 1 o = ops; 1 i = nsops; 2 while (i--) { 1 *o++ = t->sem_num; 1 *o++ = t->sem_op; 1 *o++ = t->sem_flg; 1 t++; } 1 Safefree(temps); 1 return result; } #else Perl_croak(aTHX_ "semop not implemented"); #endif } I32 Perl_do_shmio(pTHX_ I32 optype, SV **mark, SV **sp) 2 { #ifdef HAS_SHM 2 SV *mstr; 2 char *shm; 2 I32 mpos, msize; 2 struct shmid_ds shmds; 2 const I32 id = SvIVx(*++mark); 2 (void)sp; 2 mstr = *++mark; 2 mpos = SvIVx(*++mark); 2 msize = SvIVx(*++mark); 2 SETERRNO(0,0); 2 if (shmctl(id, IPC_STAT, &shmds) == -1) ###### return -1; 2 if (mpos < 0 || msize < 0 || mpos + msize > shmds.shm_segsz) { ###### SETERRNO(EFAULT,SS_ACCVIO); /* can't do as caller requested */ ###### return -1; } 2 shm = (char *)shmat(id, (char*)NULL, (optype == OP_SHMREAD) ? SHM_RDONLY : 0); 2 if (shm == (char *)-1) /* I hate System V IPC, I really do */ ###### return -1; 2 if (optype == OP_SHMREAD) { 1 const char *mbuf; /* suppress warning when reading into undef var (tchrist 3/Mar/00) */ 1 if (! SvOK(mstr)) 1 sv_setpvn(mstr, "", 0); 1 SvPV_force_nolen(mstr); 1 mbuf = SvGROW(mstr, msize+1); 1 Copy(shm + mpos, mbuf, msize, char); 1 SvCUR_set(mstr, msize); 1 *SvEND(mstr) = '\0'; 1 SvSETMAGIC(mstr); #ifndef INCOMPLETE_TAINTS /* who knows who has been playing with this shared memory? */ 1 SvTAINTED_on(mstr); #endif } else { 1 I32 n; 1 STRLEN len; 1 const char *mbuf = SvPV_const(mstr, len); 1 if ((n = len) > msize) ###### n = msize; 1 Copy(mbuf, shm + mpos, n, char); 1 if (n < msize) 1 memzero(shm + mpos + n, msize - n); } 2 return shmdt(shm); #else Perl_croak(aTHX_ "shm I/O not implemented"); #endif } #endif /* SYSV IPC */ /* =head1 IO Functions =for apidoc start_glob Function called by C to spawn a glob (or do the glob inside perl on VMS). This code used to be inline, but now perl uses C this glob starter is only used by miniperl during the build process. Moving it away shrinks pp_hot.c; shrinking pp_hot.c helps speed perl up. =cut */ PerlIO * Perl_start_glob (pTHX_ SV *tmpglob, IO *io) 3 { dVAR; 3 SV *tmpcmd = NEWSV(55, 0); 3 PerlIO *fp; 3 ENTER; 3 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 #include #include #include char rslt[NAM$C_MAXRSS+1+sizeof(unsigned short int)] = {'\0','\0'}; char vmsspec[NAM$C_MAXRSS+1]; char *rstr = rslt + sizeof(unsigned short int), *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$_SYN ? EINVAL : EVMSERR),sts); } PerlIO_close(tmpfp); fp = NULL; } else { PerlIO_rewind(tmpfp); IoTYPE(io) = IoTYPE_RDONLY; IoIFP(io) = fp = tmpfp; IoFLAGS(io) &= ~IOf_UNTAINT; /* maybe redundant */ } } } #else /* !VMS */ #ifdef MACOS_TRADITIONAL sv_setpv(tmpcmd, "glob "); sv_catsv(tmpcmd, tmpglob); sv_catpv(tmpcmd, " |"); #else #ifdef DOSISH #ifdef OS2 sv_setpv(tmpcmd, "for a in "); sv_catsv(tmpcmd, tmpglob); sv_catpv(tmpcmd, "; do echo \"$a\\0\\c\"; done |"); #else #ifdef DJGPP sv_setpv(tmpcmd, "/dev/dosglob/"); /* File System Extension */ sv_catsv(tmpcmd, tmpglob); #else sv_setpv(tmpcmd, "perlglob "); sv_catsv(tmpcmd, tmpglob); sv_catpv(tmpcmd, " |"); #endif /* !DJGPP */ #endif /* !OS2 */ #else /* !DOSISH */ #if defined(CSH) 3 sv_setpvn(tmpcmd, PL_cshname, PL_cshlen); 3 sv_catpv(tmpcmd, " -cf 'set nonomatch; glob "); 3 sv_catsv(tmpcmd, tmpglob); 3 sv_catpv(tmpcmd, "' 2>/dev/null |"); #else sv_setpv(tmpcmd, "echo "); sv_catsv(tmpcmd, tmpglob); #if 'z' - 'a' == 25 sv_catpv(tmpcmd, "|tr -s ' \t\f\r' '\\012\\012\\012\\012'|"); #else sv_catpv(tmpcmd, "|tr -s ' \t\f\r' '\\n\\n\\n\\n'|"); #endif #endif /* !CSH */ #endif /* !DOSISH */ #endif /* MACOS_TRADITIONAL */ 3 (void)do_open(PL_last_in_gv, (char*)SvPVX_const(tmpcmd), SvCUR(tmpcmd), FALSE, O_RDONLY, 0, Nullfp); 3 fp = IoIFP(io); #endif /* !VMS */ 3 LEAVE; 3 return fp; } /* * Local variables: * c-indentation-style: bsd * c-basic-offset: 4 * indent-tabs-mode: t * End: * * ex: set ts=8 sts=4 sw=4 noet: */