X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=doio.c;h=fd40ae08fcf490d48cb2015beb009053a6721d2e;hb=3f7d42d86a70d697ec5a8fca00c89984282b399e;hp=3a365bfbf4392739489088017a35db531104dbfa;hpb=3d66d7bbcb640a64506c070858513969e07f7fc1;p=p5sagit%2Fp5-mst-13.2.git diff --git a/doio.c b/doio.c index 3a365bf..fd40ae0 100644 --- a/doio.c +++ b/doio.c @@ -1,6 +1,6 @@ /* doio.c * - * Copyright (c) 1991-1997, Larry Wall + * Copyright (c) 1991-2001, 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. @@ -15,20 +15,20 @@ */ #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_SEM -#include -#endif #ifdef HAS_SHM #include # ifndef HAS_SHMAT_PROTOTYPE - extern Shmat_t shmat _((int, char *, int)); + extern Shmat_t shmat (int, char *, int); # endif #endif #endif @@ -41,12 +41,6 @@ # endif #endif -#ifdef I_FCNTL -#include -#endif -#ifdef I_SYS_FILE -#include -#endif #ifdef O_EXCL # define OPEN_EXCL O_EXCL #else @@ -57,158 +51,279 @@ #include #endif -/* XXX If this causes problems, set i_unistd=undef in the hint file. */ -#ifdef I_UNISTD -# include -#endif - -#if defined(HAS_SOCKET) && !defined(VMS) /* VMS handles sockets via vmsish.h */ -# include -# include -# ifndef ENOTSOCK -# ifdef I_NET_ERRNO -# include -# endif -# endif -#endif +bool +Perl_do_open(pTHX_ GV *gv, register char *name, I32 len, int as_raw, + int rawmode, int rawperm, PerlIO *supplied_fp) +{ + return do_openn(gv, name, len, as_raw, rawmode, rawperm, + supplied_fp, (SV **) NULL, 0); +} -/* Put this after #includes because defines _XOPEN_*. */ -#ifndef Sock_size_t -# if _XOPEN_VERSION >= 5 || defined(_XOPEN_SOURCE_EXTENDED) || defined(__GLIBC__) -# define Sock_size_t Size_t -# else -# define Sock_size_t int -# endif -#endif +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) +{ + return do_openn(gv, name, len, as_raw, rawmode, rawperm, + supplied_fp, &svs, 1); +} bool -do_open(GV *gv, register char *name, I32 len, int as_raw, int rawmode, int rawperm, PerlIO *supplied_fp) +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) { register IO *io = GvIOn(gv); PerlIO *saveifp = Nullfp; PerlIO *saveofp = Nullfp; - char savetype = ' '; + int savefd = -1; + char savetype = IoTYPE_CLOSED; int writing = 0; PerlIO *fp; int fd; int result; bool was_fdopen = FALSE; + bool in_raw = 0, in_crlf = 0, out_raw = 0, out_crlf = 0; + char *type = NULL; + char mode[8]; /* stdio file mode ("r\0", "rb\0", "r+b\0" etc.) */ + SV *namesv; + + Zero(mode,sizeof(mode),char); + PL_forkprocess = 1; /* assume true if no fork */ + + /* Collect default raw/crlf info from the op */ + if (PL_op && PL_op->op_type == OP_OPEN) { + /* set up disciplines */ + U8 flags = PL_op->op_private; + in_raw = (flags & OPpOPEN_IN_RAW); + in_crlf = (flags & OPpOPEN_IN_CRLF); + out_raw = (flags & OPpOPEN_OUT_RAW); + out_crlf = (flags & OPpOPEN_OUT_CRLF); + } - forkprocess = 1; /* assume true if no fork */ - + /* If currently open - close before we re-open */ if (IoIFP(io)) { fd = PerlIO_fileno(IoIFP(io)); - if (IoTYPE(io) == '-') + if (IoTYPE(io) == IoTYPE_STD) { + /* This is a clone of one of STD* handles */ result = 0; - else if (fd <= maxsysfd) { - saveifp = IoIFP(io); - saveofp = IoOFP(io); + } + else if (fd >= 0 && fd <= PL_maxsysfd) { + /* This is one of the original STD* handles */ + saveifp = IoIFP(io); + saveofp = IoOFP(io); savetype = IoTYPE(io); - result = 0; + savefd = fd; + result = 0; } - else if (IoTYPE(io) == '|') + else if (IoTYPE(io) == IoTYPE_PIPE) result = PerlProc_pclose(IoIFP(io)); else if (IoIFP(io) != IoOFP(io)) { if (IoOFP(io)) { result = PerlIO_close(IoOFP(io)); - PerlIO_close(IoIFP(io)); /* clear stdio, fd already closed */ + PerlIO_close(IoIFP(io)); /* clear stdio, fd already closed */ } else result = PerlIO_close(IoIFP(io)); } else result = PerlIO_close(IoIFP(io)); - if (result == EOF && fd > maxsysfd) - PerlIO_printf(PerlIO_stderr(), "Warning: unable to close filehandle %s properly.\n", - GvENAME(gv)); + 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)); + } IoOFP(io) = IoIFP(io) = Nullfp; } if (as_raw) { - result = rawmode & 3; - IoTYPE(io) = "<>++"[result]; + /* sysopen style args, i.e. integer mode and permissions */ + STRLEN ix = 0; + if (num_svs != 0) { + Perl_croak(aTHX_ "panic:sysopen with multiple args"); + } + mode[ix++] = '#'; /* Marker to openn to use numeric "sysopen" */ + +#if defined(USE_64_BIT_RAWIO) && defined(O_LARGEFILE) + rawmode |= O_LARGEFILE; +#endif + +#ifndef O_ACCMODE +#define O_ACCMODE 3 /* Assume traditional implementation */ +#endif + + switch (result = rawmode & O_ACCMODE) { + case O_RDONLY: + IoTYPE(io) = IoTYPE_RDONLY; + break; + case O_WRONLY: + IoTYPE(io) = IoTYPE_WRONLY; + break; + case O_RDWR: + default: + IoTYPE(io) = IoTYPE_RDWR; + break; + } writing = (result > 0); - fd = PerlLIO_open3(name, rawmode, rawperm); - if (fd == -1) - fp = NULL; - else { - char *fpmode; - if (result == 0) - fpmode = "r"; + + if (result == O_RDONLY) { + mode[ix++] = 'r'; + } #ifdef O_APPEND - else if (rawmode & O_APPEND) - fpmode = (result == 1) ? "a" : "a+"; + else if (rawmode & O_APPEND) { + mode[ix++] = 'a'; + if (result != O_WRONLY) + mode[ix++] = '+'; + } #endif - else - fpmode = (result == 1) ? "w" : "r+"; - fp = PerlIO_fdopen(fd, fpmode); - if (!fp) - PerlLIO_close(fd); + else { + if (result == O_WRONLY) + mode[ix++] = 'w'; + else { + mode[ix++] = 'r'; + mode[ix++] = '+'; + } } + if (rawmode & O_BINARY) + mode[ix++] = 'b'; + mode[ix] = '\0'; + + namesv = sv_2mortal(newSVpvn(name,strlen(name))); + num_svs = 1; + svp = &namesv; + type = Nullch; + fp = PerlIO_openn(aTHX_ type,mode, -1, rawmode, rawperm, NULL, num_svs, svp); } else { - char *myname; - char mode[3]; /* stdio file mode ("r\0" or "r+\0") */ - int dodup; - - myname = savepvn(name, len); - SAVEFREEPV(myname); - name = myname; - while (len && isSPACE(name[len-1])) - name[--len] = '\0'; - - mode[0] = mode[1] = mode[2] = '\0'; - IoTYPE(io) = *name; - if (*name == '+' && len > 1 && name[len-1] != '|') { /* scary */ - mode[1] = *name++; - --len; + /* Regular (non-sys) open */ + char *oname = name; + STRLEN olen = len; + char *tend; + int dodup = 0; + + type = savepvn(name, len); + tend = type+len; + SAVEFREEPV(type); + /* Loose trailing white space */ + while (tend > type && isSPACE(tend[-1])) + *tend-- = '\0'; + if (num_svs) { + /* New style explict name, type is just mode and discipline/layer info */ + STRLEN l = 0; + name = SvOK(*svp) ? SvPV(*svp, l) : ""; + len = (I32)l; + name = savepvn(name, len); + SAVEFREEPV(name); + /*SUPPRESS 530*/ + for (; isSPACE(*type); type++) ; + } + else { + name = type; + len = tend-type; + } + IoTYPE(io) = *type; + if ((*type == IoTYPE_RDWR) && ((!num_svs || tend > type+1 && tend[-1] != IoTYPE_PIPE))) { /* scary */ + mode[1] = *type++; writing = 1; } - if (*name == '|') { + if (*type == IoTYPE_PIPE) { + if (num_svs) { + if (type[1] != IoTYPE_STD) { + unknown_desr: + Perl_croak(aTHX_ "Unknown open() mode '%.*s'", (int)olen, oname); + } + type++; + } /*SUPPRESS 530*/ - for (name++; isSPACE(*name); name++) ; - if (strNE(name,"-")) + for (type++; isSPACE(*type); type++) ; + if (!num_svs) { + name = type; + len = tend-type; + } + if (*name == '\0') { + /* command is missing 19990114 */ + if (ckWARN(WARN_PIPE)) + Perl_warner(aTHX_ WARN_PIPE, "Missing command in piped open"); + errno = EPIPE; + goto say_false; + } + if (strNE(name,"-") || num_svs) TAINT_ENV(); TAINT_PROPER("piped open"); - if (name[strlen(name)-1] == '|') { - name[strlen(name)-1] = '\0' ; - if (dowarn) - warn("Can't do bidirectional pipe"); + if (!num_svs && name[len-1] == '|') { + name[--len] = '\0' ; + if (ckWARN(WARN_PIPE)) + Perl_warner(aTHX_ WARN_PIPE, "Can't open bidirectional pipe"); } - fp = PerlProc_popen(name,"w"); + mode[0] = 'w'; writing = 1; + if (out_raw) + strcat(mode, "b"); + else if (out_crlf) + strcat(mode, "t"); + if (num_svs > 1) { + fp = PerlProc_popen_list(mode, num_svs, svp); + } + else { + fp = PerlProc_popen(name,mode); + } } - else if (*name == '>') { + else if (*type == IoTYPE_WRONLY) { TAINT_PROPER("open"); - name++; - if (*name == '>') { - mode[0] = IoTYPE(io) = 'a'; - name++; + type++; + if (*type == IoTYPE_WRONLY) { + /* Two IoTYPE_WRONLYs in a row make for an IoTYPE_APPEND. */ + mode[0] = IoTYPE(io) = IoTYPE_APPEND; + type++; } - else + else { mode[0] = 'w'; + } writing = 1; - if (*name == '&') { + if (out_raw) + strcat(mode, "b"); + else if (out_crlf) + strcat(mode, "t"); + + if (*type == '&') { duplicity: dodup = 1; - name++; - if (*name == '=') { + type++; + if (*type == '=') { dodup = 0; - name++; + type++; } - if (!*name && supplied_fp) + if (!num_svs && !*type && supplied_fp) { + /* "<+&" etc. is used by typemaps */ fp = supplied_fp; + } else { - /*SUPPRESS 530*/ - for (; isSPACE(*name); name++) ; - if (isDIGIT(*name)) - fd = atoi(name); + if (num_svs > 1) { + Perl_croak(aTHX_ "More than one argument to '%c&' open",IoTYPE(io)); + } + if (num_svs && SvIOK(*svp)) { + fd = SvUV(*svp); + } + else if (isDIGIT(*type)) { + /*SUPPRESS 530*/ + for (; isSPACE(*type); type++) ; + fd = atoi(type); + } else { IO* thatio; - gv = gv_fetchpv(name,FALSE,SVt_PVIO); - thatio = GvIO(gv); + if (num_svs) { + thatio = sv_2io(*svp); + } + 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); @@ -216,9 +331,36 @@ do_open(GV *gv, register char *name, I32 len, int as_raw, int rawmode, int rawpe goto say_false; } if (IoIFP(thatio)) { - fd = PerlIO_fileno(IoIFP(thatio)); - if (IoTYPE(thatio) == 's') - IoTYPE(io) = 's'; + PerlIO *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(fp, 0, SEEK_CUR) == -1) + PerlIO_clearerr(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 */ + PerlIO_flush(fp); + fd = PerlIO_fileno(fp); + /* When dup()ing STDIN, STDOUT or STDERR + * explicitly set appropriate access mode */ + if (IoIFP(thatio) == PerlIO_stdout() + || IoIFP(thatio) == PerlIO_stderr()) + IoTYPE(io) = IoTYPE_WRONLY; + else if (IoIFP(thatio) == PerlIO_stdin()) + IoTYPE(io) = IoTYPE_RDONLY; + /* When dup()ing a socket, say result is + * one as well */ + else if (IoTYPE(thatio) == IoTYPE_SOCKET) + IoTYPE(io) = IoTYPE_SOCKET; } else fd = -1; @@ -227,132 +369,238 @@ do_open(GV *gv, register char *name, I32 len, int as_raw, int rawmode, int rawpe fd = PerlLIO_dup(fd); else was_fdopen = TRUE; - if (!(fp = PerlIO_fdopen(fd,mode))) { + if (!num_svs) + type = Nullch; + if (!(fp = PerlIO_openn(aTHX_ type,mode,fd,0,0,NULL,num_svs,svp))) { if (dodup) PerlLIO_close(fd); - } + } } - } + } /* & */ else { + if (num_svs > 1) { + Perl_croak(aTHX_ "More than one argument to '>' open"); + } /*SUPPRESS 530*/ - for (; isSPACE(*name); name++) ; - if (strEQ(name,"-")) { + for (; isSPACE(*type); type++) ; + if (*type == IoTYPE_STD && (!type[1] || isSPACE(type[1]) || type[1] == ':')) { + /*SUPPRESS 530*/ + type++; fp = PerlIO_stdout(); - IoTYPE(io) = '-'; + IoTYPE(io) = IoTYPE_STD; } else { - fp = PerlIO_open(name,mode); + if (!num_svs) { + namesv = sv_2mortal(newSVpvn(type,strlen(type))); + num_svs = 1; + svp = &namesv; + type = Nullch; + } + fp = PerlIO_openn(aTHX_ type,mode,-1,0,0,NULL,num_svs,svp); } - } + } /* !& */ } - else if (*name == '<') { + else if (*type == IoTYPE_RDONLY) { + if (num_svs > 1) { + Perl_croak(aTHX_ "More than one argument to '<' open"); + } /*SUPPRESS 530*/ - for (name++; isSPACE(*name); name++) ; + for (type++; isSPACE(*type); type++) ; mode[0] = 'r'; - if (*name == '&') + if (in_raw) + strcat(mode, "b"); + else if (in_crlf) + strcat(mode, "t"); + + if (*type == '&') { goto duplicity; - if (strEQ(name,"-")) { + } + if (*type == IoTYPE_STD && (!type[1] || isSPACE(type[1]) || type[1] == ':')) { + /*SUPPRESS 530*/ + type++; fp = PerlIO_stdin(); - IoTYPE(io) = '-'; + IoTYPE(io) = IoTYPE_STD; + } + else { + if (!num_svs) { + namesv = sv_2mortal(newSVpvn(type,strlen(type))); + num_svs = 1; + svp = &namesv; + type = Nullch; + } + fp = PerlIO_openn(aTHX_ type,mode,-1,0,0,NULL,num_svs,svp); } - else - fp = PerlIO_open(name,mode); } - else if (len > 1 && name[len-1] == '|') { - name[--len] = '\0'; - while (len && isSPACE(name[len-1])) - name[--len] = '\0'; - /*SUPPRESS 530*/ - for (; isSPACE(*name); name++) ; - if (strNE(name,"-")) + else if ((num_svs && type[0] == IoTYPE_STD && type[1] == IoTYPE_PIPE) || + (!num_svs && tend > type+1 && tend[-1] == IoTYPE_PIPE)) { + if (num_svs) { + type += 2; /* skip over '-|' */ + } + else { + *--tend = '\0'; + while (tend > type && isSPACE(tend[-1])) + *--tend = '\0'; + /*SUPPRESS 530*/ + for (; isSPACE(*type); type++) ; + name = type; + len = tend-type; + } + if (*name == '\0') { + /* command is missing 19990114 */ + if (ckWARN(WARN_PIPE)) + Perl_warner(aTHX_ WARN_PIPE, "Missing command in piped open"); + errno = EPIPE; + goto say_false; + } + if (strNE(name,"-") || num_svs) TAINT_ENV(); TAINT_PROPER("piped open"); - fp = PerlProc_popen(name,"r"); - IoTYPE(io) = '|'; + mode[0] = 'r'; + if (in_raw) + strcat(mode, "b"); + else if (in_crlf) + strcat(mode, "t"); + if (num_svs > 1) { + fp = PerlProc_popen_list(mode,num_svs,svp); + } + else { + fp = PerlProc_popen(name,mode); + } + IoTYPE(io) = IoTYPE_PIPE; } else { - IoTYPE(io) = '<'; + if (num_svs) + goto unknown_desr; + name = type; + IoTYPE(io) = IoTYPE_RDONLY; /*SUPPRESS 530*/ for (; isSPACE(*name); name++) ; + mode[0] = 'r'; + if (in_raw) + strcat(mode, "b"); + else if (in_crlf) + strcat(mode, "t"); if (strEQ(name,"-")) { fp = PerlIO_stdin(); - IoTYPE(io) = '-'; + IoTYPE(io) = IoTYPE_STD; + } + else { + if (!num_svs) { + namesv = sv_2mortal(newSVpvn(type,strlen(type))); + num_svs = 1; + svp = &namesv; + type = Nullch; + } + fp = PerlIO_openn(aTHX_ type,mode,-1,0,0,NULL,num_svs,svp); } - else - fp = PerlIO_open(name,"r"); } } if (!fp) { - if (dowarn && IoTYPE(io) == '<' && strchr(name, '\n')) - warn(warn_nl, "open"); + if (ckWARN(WARN_NEWLINE) && IoTYPE(io) == IoTYPE_RDONLY && strchr(name, '\n')) + Perl_warner(aTHX_ WARN_NEWLINE, PL_warn_nl, "open"); goto say_false; } - if (IoTYPE(io) && - IoTYPE(io) != '|' && IoTYPE(io) != '-') { - dTHR; - if (PerlLIO_fstat(PerlIO_fileno(fp),&statbuf) < 0) { + + 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"); + } + else if ((IoTYPE(io) == IoTYPE_WRONLY) && fp == PerlIO_stdin()) { + Perl_warner(aTHX_ WARN_IO, + "Filehandle STDIN opened only for output"); + } + } + + if (IoTYPE(io) && IoTYPE(io) != IoTYPE_PIPE && IoTYPE(io) != IoTYPE_STD && + /* FIXME: This next term is a hack to avoid fileno on PerlIO::Scalar */ + !(num_svs && SvROK(*svp))) { + if (PerlLIO_fstat(PerlIO_fileno(fp),&PL_statbuf) < 0) { (void)PerlIO_close(fp); goto say_false; } - if (S_ISSOCK(statbuf.st_mode)) - IoTYPE(io) = 's'; /* in case a socket was passed in to us */ + if (S_ISSOCK(PL_statbuf.st_mode)) + IoTYPE(io) = IoTYPE_SOCKET; /* in case a socket was passed in to us */ #ifdef HAS_SOCKET else if ( #ifdef S_IFMT - !(statbuf.st_mode & S_IFMT) + !(PL_statbuf.st_mode & S_IFMT) #else - !statbuf.st_mode + !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(PerlIO_fileno(fp), (struct sockaddr *)tmpbuf, &buflen) >= 0 || errno != ENOTSOCK) - IoTYPE(io) = 's'; /* some OS's return 0 on fstat()ed socket */ + IoTYPE(io) = IoTYPE_SOCKET; /* some OS's return 0 on fstat()ed socket */ /* but some return 0 for streams too, sigh */ } #endif } if (saveifp) { /* must use old fp? */ - fd = PerlIO_fileno(saveifp); + /* If fd is less that PL_maxsysfd i.e. STDIN..STDERR + then dup the new fileno down + */ + fd = PerlIO_fileno(fp); if (saveofp) { - PerlIO_flush(saveofp); /* emulate PerlIO_close() */ + PerlIO_flush(saveofp); /* emulate PerlIO_close() */ if (saveofp != saveifp) { /* was a socket? */ PerlIO_close(saveofp); - if (fd > 2) - Safefree(saveofp); } } - if (fd != PerlIO_fileno(fp)) { - int pid; + if (savefd != fd) { + Pid_t pid; SV *sv; - - PerlLIO_dup2(PerlIO_fileno(fp), fd); - sv = *av_fetch(fdpid,PerlIO_fileno(fp),TRUE); + if (PerlLIO_dup2(fd, savefd) < 0) { + (void)PerlIO_close(fp); + goto say_false; + } +#ifdef VMS + if (savefd != PerlIO_fileno(PerlIO_stdin())) { + char newname[FILENAME_MAX+1]; + if (fgetname(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(fdpid,fd,TRUE); + sv = *av_fetch(PL_fdpid,savefd,TRUE); + UNLOCK_FDPID_MUTEX; (void)SvUPGRADE(sv, SVt_IV); SvIVX(sv) = pid; if (!was_fdopen) PerlIO_close(fp); - } fp = saveifp; PerlIO_clearerr(fp); } #if defined(HAS_FCNTL) && defined(F_SETFD) - fd = PerlIO_fileno(fp); - fcntl(fd,F_SETFD,fd > maxsysfd); + { + int save_errno = errno; + fd = PerlIO_fileno(fp); + fcntl(fd,F_SETFD,fd > PL_maxsysfd); /* can change errno */ + errno = save_errno; + } #endif IoIFP(io) = fp; + + IoFLAGS(io) &= ~IOf_NOLINE; if (writing) { - dTHR; - if (IoTYPE(io) == 's' - || (IoTYPE(io) == '>' && S_ISCHR(statbuf.st_mode)) ) { - if (!(IoOFP(io) = PerlIO_fdopen(PerlIO_fileno(fp),"w"))) { + if (IoTYPE(io) == IoTYPE_SOCKET + || (IoTYPE(io) == IoTYPE_WRONLY && S_ISCHR(PL_statbuf.st_mode)) ) { + mode[0] = 'w'; + if (!(IoOFP(io) = PerlIO_openn(aTHX_ type,mode,PerlIO_fileno(fp),0,0,NULL,num_svs,svp))) { PerlIO_close(fp); IoIFP(io) = Nullfp; goto say_false; @@ -371,164 +619,212 @@ say_false: } PerlIO * -nextargv(register GV *gv) +Perl_nextargv(pTHX_ register GV *gv) { register SV *sv; #ifndef FLEXFILENAMES int filedev; int fileino; #endif - int fileuid; - int filegid; - - if (!argvoutgv) - argvoutgv = gv_fetchpv("ARGVOUT",TRUE,SVt_PVIO); - if (filemode & (S_ISUID|S_ISGID)) { - PerlIO_flush(IoIFP(GvIOn(argvoutgv))); /* chmod must follow last write */ + Uid_t fileuid; + Gid_t filegid; + IO *io = GvIOp(gv); + + if (!PL_argvoutgv) + PL_argvoutgv = gv_fetchpv("ARGVOUT",TRUE,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)); + } + } + if (PL_filemode & (S_ISUID|S_ISGID)) { + PerlIO_flush(IoIFP(GvIOn(PL_argvoutgv))); /* chmod must follow last write */ #ifdef HAS_FCHMOD - (void)fchmod(lastfd,filemode); + (void)fchmod(PL_lastfd,PL_filemode); #else - (void)PerlLIO_chmod(oldname,filemode); + (void)PerlLIO_chmod(PL_oldname,PL_filemode); #endif } - filemode = 0; + PL_filemode = 0; while (av_len(GvAV(gv)) >= 0) { - dTHR; STRLEN oldlen; sv = av_shift(GvAV(gv)); SAVEFREESV(sv); sv_setsv(GvSV(gv),sv); SvSETMAGIC(GvSV(gv)); - oldname = SvPVx(GvSV(gv), oldlen); - if (do_open(gv,oldname,oldlen,inplace!=0,0,0,Nullfp)) { - if (inplace) { + PL_oldname = SvPVx(GvSV(gv), oldlen); + if (do_open(gv,PL_oldname,oldlen,PL_inplace!=0,O_RDONLY,0,Nullfp)) { + if (PL_inplace) { TAINT_PROPER("inplace open"); - if (oldlen == 1 && *oldname == '-') { + if (oldlen == 1 && *PL_oldname == '-') { setdefout(gv_fetchpv("STDOUT",TRUE,SVt_PVIO)); return IoIFP(GvIOp(gv)); } #ifndef FLEXFILENAMES - filedev = statbuf.st_dev; - fileino = statbuf.st_ino; -#endif - filemode = statbuf.st_mode; - fileuid = statbuf.st_uid; - filegid = statbuf.st_gid; - if (!S_ISREG(filemode)) { - warn("Can't do inplace edit: %s is not a regular file", - oldname ); + filedev = PL_statbuf.st_dev; + fileino = PL_statbuf.st_ino; +#endif + PL_filemode = PL_statbuf.st_mode; + fileuid = PL_statbuf.st_uid; + filegid = PL_statbuf.st_gid; + if (!S_ISREG(PL_filemode)) { + if (ckWARN_d(WARN_INPLACE)) + Perl_warner(aTHX_ WARN_INPLACE, + "Can't do inplace edit: %s is not a regular file", + PL_oldname ); do_close(gv,FALSE); continue; } - if (*inplace) { - char *star = strchr(inplace, '*'); + if (*PL_inplace) { + char *star = strchr(PL_inplace, '*'); if (star) { - char *begin = inplace; + char *begin = PL_inplace; sv_setpvn(sv, "", 0); do { sv_catpvn(sv, begin, star - begin); - sv_catpvn(sv, oldname, oldlen); + sv_catpvn(sv, PL_oldname, oldlen); begin = ++star; } while ((star = strchr(begin, '*'))); if (*begin) sv_catpv(sv,begin); } else { - sv_catpv(sv,inplace); + sv_catpv(sv,PL_inplace); } #ifndef FLEXFILENAMES - if (PerlLIO_stat(SvPVX(sv),&statbuf) >= 0 - && statbuf.st_dev == filedev - && statbuf.st_ino == fileino + if (PerlLIO_stat(SvPVX(sv),&PL_statbuf) >= 0 + && PL_statbuf.st_dev == filedev + && PL_statbuf.st_ino == fileino #ifdef DJGPP || (_djstat_fail_bits & _STFAIL_TRUENAME)!=0 #endif - ) { - warn("Can't do inplace edit: %s would not be uniq", - SvPVX(sv) ); + ) + { + if (ckWARN_d(WARN_INPLACE)) + Perl_warner(aTHX_ WARN_INPLACE, + "Can't do inplace edit: %s would not be unique", + SvPVX(sv)); do_close(gv,FALSE); continue; } #endif #ifdef HAS_RENAME -#ifndef DOSISH - if (PerlLIO_rename(oldname,SvPVX(sv)) < 0) { - warn("Can't rename %s to %s: %s, skipping file", - oldname, SvPVX(sv), Strerror(errno) ); +#if !defined(DOSISH) && !defined(__CYGWIN__) + if (PerlLIO_rename(PL_oldname,SvPVX(sv)) < 0) { + if (ckWARN_d(WARN_INPLACE)) + Perl_warner(aTHX_ WARN_INPLACE, + "Can't rename %s to %s: %s, skipping file", + PL_oldname, SvPVX(sv), Strerror(errno) ); do_close(gv,FALSE); continue; } #else do_close(gv,FALSE); (void)PerlLIO_unlink(SvPVX(sv)); - (void)PerlLIO_rename(oldname,SvPVX(sv)); - do_open(gv,SvPVX(sv),SvCUR(sv),inplace!=0,0,0,Nullfp); + (void)PerlLIO_rename(PL_oldname,SvPVX(sv)); + do_open(gv,SvPVX(sv),SvCUR(sv),PL_inplace!=0,O_RDONLY,0,Nullfp); #endif /* DOSISH */ #else (void)UNLINK(SvPVX(sv)); - if (link(oldname,SvPVX(sv)) < 0) { - warn("Can't rename %s to %s: %s, skipping file", - oldname, SvPVX(sv), Strerror(errno) ); + if (link(PL_oldname,SvPVX(sv)) < 0) { + if (ckWARN_d(WARN_INPLACE)) + Perl_warner(aTHX_ WARN_INPLACE, + "Can't rename %s to %s: %s, skipping file", + PL_oldname, SvPVX(sv), Strerror(errno) ); do_close(gv,FALSE); continue; } - (void)UNLINK(oldname); + (void)UNLINK(PL_oldname); #endif } else { #if !defined(DOSISH) && !defined(AMIGAOS) # ifndef VMS /* Don't delete; use automatic file versioning */ - if (UNLINK(oldname) < 0) { - warn("Can't remove %s: %s, skipping file", - oldname, Strerror(errno) ); + if (UNLINK(PL_oldname) < 0) { + if (ckWARN_d(WARN_INPLACE)) + Perl_warner(aTHX_ WARN_INPLACE, + "Can't remove %s: %s, skipping file", + PL_oldname, Strerror(errno) ); do_close(gv,FALSE); continue; } # endif #else - croak("Can't do inplace edit without backup"); + Perl_croak(aTHX_ "Can't do inplace edit without backup"); #endif } - sv_setpvn(sv,">",!inplace); - sv_catpvn(sv,oldname,oldlen); + sv_setpvn(sv,">",!PL_inplace); + sv_catpvn(sv,PL_oldname,oldlen); SETERRNO(0,0); /* in case sprintf set errno */ - if (!do_open(argvoutgv,SvPVX(sv),SvCUR(sv),inplace!=0, - O_WRONLY|O_CREAT|OPEN_EXCL,0666,Nullfp)) { - warn("Can't do inplace edit on %s: %s", - oldname, Strerror(errno) ); +#ifdef VMS + if (!do_open(PL_argvoutgv,SvPVX(sv),SvCUR(sv),PL_inplace!=0, + O_WRONLY|O_CREAT|O_TRUNC,0,Nullfp)) +#else + if (!do_open(PL_argvoutgv,SvPVX(sv),SvCUR(sv),PL_inplace!=0, + O_WRONLY|O_CREAT|OPEN_EXCL,0666,Nullfp)) +#endif + { + if (ckWARN_d(WARN_INPLACE)) + Perl_warner(aTHX_ WARN_INPLACE, "Can't do inplace edit on %s: %s", + PL_oldname, Strerror(errno) ); do_close(gv,FALSE); continue; } - setdefout(argvoutgv); - lastfd = PerlIO_fileno(IoIFP(GvIOp(argvoutgv))); - (void)PerlLIO_fstat(lastfd,&statbuf); + setdefout(PL_argvoutgv); + PL_lastfd = PerlIO_fileno(IoIFP(GvIOp(PL_argvoutgv))); + (void)PerlLIO_fstat(PL_lastfd,&PL_statbuf); #ifdef HAS_FCHMOD - (void)fchmod(lastfd,filemode); + (void)fchmod(PL_lastfd,PL_filemode); #else # if !(defined(WIN32) && defined(__BORLANDC__)) /* Borland runtime creates a readonly file! */ - (void)PerlLIO_chmod(oldname,filemode); + (void)PerlLIO_chmod(PL_oldname,PL_filemode); # endif #endif - if (fileuid != statbuf.st_uid || filegid != statbuf.st_gid) { + if (fileuid != PL_statbuf.st_uid || filegid != PL_statbuf.st_gid) { #ifdef HAS_FCHOWN - (void)fchown(lastfd,fileuid,filegid); + (void)fchown(PL_lastfd,fileuid,filegid); #else #ifdef HAS_CHOWN - (void)PerlLIO_chown(oldname,fileuid,filegid); + (void)PerlLIO_chown(PL_oldname,fileuid,filegid); #endif #endif } } return IoIFP(GvIOp(gv)); } - else - PerlIO_printf(PerlIO_stderr(), "Can't open %s: %s\n", - SvPV(sv, na), Strerror(errno)); + else { + if (ckWARN_d(WARN_INPLACE)) { + int eno = errno; + if (PerlLIO_stat(PL_oldname, &PL_statbuf) >= 0 + && !S_ISREG(PL_statbuf.st_mode)) + { + Perl_warner(aTHX_ 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", + PL_oldname, Strerror(eno)); + } + } } - if (inplace) { - (void)do_close(argvoutgv,FALSE); + if (io && (IoFLAGS(io) & IOf_ARGV)) + IoFLAGS(io) |= IOf_START; + if (PL_inplace) { + (void)do_close(PL_argvoutgv,FALSE); + if (io && (IoFLAGS(io) & IOf_ARGV) + && PL_argvout_stack && AvFILLp(PL_argvout_stack) >= 0) + { + GV *oldout = (GV*)av_pop(PL_argvout_stack); + setdefout(oldout); + SvREFCNT_dec(oldout); + return Nullfp; + } setdefout(gv_fetchpv("STDOUT",TRUE,SVt_PVIO)); } return Nullfp; @@ -536,7 +832,7 @@ nextargv(register GV *gv) #ifdef HAS_PIPE void -do_pipe(SV *sv, GV *rgv, GV *wgv) +Perl_do_pipe(pTHX_ SV *sv, GV *rgv, GV *wgv) { register IO *rstio; register IO *wstio; @@ -560,8 +856,8 @@ do_pipe(SV *sv, GV *rgv, GV *wgv) IoIFP(rstio) = PerlIO_fdopen(fd[0], "r"); IoOFP(wstio) = PerlIO_fdopen(fd[1], "w"); IoIFP(wstio) = IoOFP(wstio); - IoTYPE(rstio) = '<'; - IoTYPE(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]); @@ -570,24 +866,24 @@ do_pipe(SV *sv, GV *rgv, GV *wgv) goto badexit; } - sv_setsv(sv,&sv_yes); + sv_setsv(sv,&PL_sv_yes); return; badexit: - sv_setsv(sv,&sv_undef); + sv_setsv(sv,&PL_sv_undef); return; } #endif /* explicit renamed to avoid C++ conflict -- kja */ bool -do_close(GV *gv, bool not_implicit) +Perl_do_close(pTHX_ GV *gv, bool not_implicit) { bool retval; IO *io; if (!gv) - gv = argvgv; + gv = PL_argvgv; if (!gv || SvTYPE(gv) != SVt_PVGV) { if (not_implicit) SETERRNO(EBADF,SS$_IVCHAN); @@ -596,35 +892,40 @@ do_close(GV *gv, bool not_implicit) io = GvIO(gv); if (!io) { /* never opened */ if (not_implicit) { - if (dowarn) - warn("Close on unopened file <%s>",GvENAME(gv)); + if (ckWARN(WARN_UNOPENED)) /* no check for closed here */ + report_evil_fh(gv, io, PL_op->op_type); SETERRNO(EBADF,SS$_IVCHAN); } return FALSE; } - retval = io_close(io); + retval = io_close(io, not_implicit); if (not_implicit) { IoLINES(io) = 0; IoPAGE(io) = 0; IoLINES_LEFT(io) = IoPAGE_LEN(io); } - IoTYPE(io) = ' '; + IoTYPE(io) = IoTYPE_CLOSED; return retval; } bool -io_close(IO *io) +Perl_io_close(pTHX_ IO *io, bool not_implicit) { bool retval = FALSE; int status; if (IoIFP(io)) { - if (IoTYPE(io) == '|') { + if (IoTYPE(io) == IoTYPE_PIPE) { status = PerlProc_pclose(IoIFP(io)); - STATUS_NATIVE_SET(status); - retval = (STATUS_POSIX == 0); + if (not_implicit) { + STATUS_NATIVE_SET(status); + retval = (STATUS_POSIX == 0); + } + else { + retval = (status != -1); + } } - else if (IoTYPE(io) == '-') + else if (IoTYPE(io) == IoTYPE_STD) retval = TRUE; else { if (IoOFP(io) && IoOFP(io) != IoIFP(io)) { /* a socket */ @@ -636,7 +937,7 @@ io_close(IO *io) } IoOFP(io) = IoIFP(io) = Nullfp; } - else { + else if (not_implicit) { SETERRNO(EBADF,SS$_IVCHAN); } @@ -644,9 +945,8 @@ io_close(IO *io) } bool -do_eof(GV *gv) +Perl_do_eof(pTHX_ GV *gv) { - dTHR; register IO *io; int ch; @@ -654,6 +954,22 @@ do_eof(GV *gv) if (!io) return TRUE; + else if (ckWARN(WARN_IO) && (IoTYPE(io) == IoTYPE_WRONLY)) + { + /* integrate to report_evil_fh()? */ + char *name = NULL; + if (isGV(gv)) { + SV* sv = sv_newmortal(); + gv_efullname4(sv, gv, Nullch, FALSE); + name = SvPV_nolen(sv); + } + if (name && *name) + Perl_warner(aTHX_ WARN_IO, + "Filehandle %s opened only for output", name); + else + Perl_warner(aTHX_ WARN_IO, + "Filehandle opened only for output"); + } while (IoIFP(io)) { @@ -667,12 +983,13 @@ do_eof(GV *gv) (void)PerlIO_ungetc(IoIFP(io),ch); return FALSE; } + if (PerlIO_has_cntptr(IoIFP(io)) && PerlIO_canset_cnt(IoIFP(io))) { if (PerlIO_get_cnt(IoIFP(io)) < -1) PerlIO_set_cnt(IoIFP(io),-1); } - if (op->op_flags & OPf_SPECIAL) { /* not necessarily a real EOF yet? */ - if (!nextargv(argvgv)) /* get another fp handy */ + if (PL_op->op_flags & OPf_SPECIAL) { /* not necessarily a real EOF yet? */ + if (!nextargv(PL_argvgv)) /* get another fp handy */ return TRUE; } else @@ -681,8 +998,8 @@ do_eof(GV *gv) return TRUE; } -long -do_tell(GV *gv) +Off_t +Perl_do_tell(pTHX_ GV *gv) { register IO *io; register PerlIO *fp; @@ -694,14 +1011,14 @@ do_tell(GV *gv) #endif return PerlIO_tell(fp); } - if (dowarn) - warn("tell() on unopened file"); + if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) + report_evil_fh(gv, io, PL_op->op_type); SETERRNO(EBADF,RMS$_IFI); - return -1L; + return (Off_t)-1; } bool -do_seek(GV *gv, long int pos, int whence) +Perl_do_seek(pTHX_ GV *gv, Off_t pos, int whence) { register IO *io; register PerlIO *fp; @@ -713,64 +1030,89 @@ do_seek(GV *gv, long int pos, int whence) #endif return PerlIO_seek(fp, pos, whence) >= 0; } - if (dowarn) - warn("seek() on unopened file"); + if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) + report_evil_fh(gv, io, PL_op->op_type); SETERRNO(EBADF,RMS$_IFI); return FALSE; } -long -do_sysseek(GV *gv, long int pos, int whence) +Off_t +Perl_do_sysseek(pTHX_ GV *gv, Off_t pos, int whence) { register IO *io; register PerlIO *fp; if (gv && (io = GvIO(gv)) && (fp = IoIFP(io))) return PerlLIO_lseek(PerlIO_fileno(fp), pos, whence); - if (dowarn) - warn("sysseek() on unopened file"); + if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) + report_evil_fh(gv, io, PL_op->op_type); SETERRNO(EBADF,RMS$_IFI); - return -1L; + return (Off_t)-1; } int -do_binmode(PerlIO *fp, int iotype, int flag) +Perl_mode_from_discipline(pTHX_ SV *discp) { - if (flag != TRUE) - croak("panic: unsetting binmode"); /* Not implemented yet */ -#ifdef DOSISH -#ifdef atarist - if (!PerlIO_flush(fp) && (fp->_flag |= _IOBIN)) - return 1; - else - return 0; -#else - if (PerlLIO_setmode(PerlIO_fileno(fp), OP_BINARY) != -1) { -#if defined(WIN32) && defined(__BORLANDC__) - /* The translation mode of the stream is maintained independent - * of the translation mode of the fd in the Borland RTL (heavy - * digging through their runtime sources reveal). User has to - * set the mode explicitly for the stream (though they don't - * document this anywhere). GSAR 97-5-24 - */ - PerlIO_seek(fp,0L,0); - ((FILE*)fp)->flags |= _F_BIN; -#endif - return 1; - } - else - return 0; -#endif -#else -#if defined(USEMYBINMODE) - if (my_binmode(fp,iotype) != NULL) - return 1; - else - return 0; + int mode = O_BINARY; + if (discp) { + STRLEN len; + char *s = SvPV(discp,len); + while (*s) { + if (*s == ':') { + switch (s[1]) { + case 'r': + if (len > 3 && strnEQ(s+1, "raw", 3) + && (!s[4] || s[4] == ':' || isSPACE(s[4]))) + { + mode = O_BINARY; + s += 4; + len -= 4; + break; + } + /* FALL THROUGH */ + case 'c': + if (len > 4 && strnEQ(s+1, "crlf", 4) + && (!s[5] || s[5] == ':' || isSPACE(s[5]))) + { + mode = O_TEXT; + s += 5; + len -= 5; + break; + } + /* FALL THROUGH */ + default: + goto fail_discipline; + } + } + else if (isSPACE(*s)) { + ++s; + --len; + } + else { + char *end; +fail_discipline: + end = strchr(s+1, ':'); + if (!end) + end = s+len; +#ifndef PERLIO_LAYERS + Perl_croak(aTHX_ "Unknown discipline '%.*s'", end-s, s); #else - return 1; -#endif + s = end; #endif + } + } + } + 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. + */ + char *name = (O_BINARY != O_TEXT && !(mode & O_BINARY)) ? ":crlf" : ":raw"; + return PerlIO_binmode(aTHX_ fp, iotype, mode, name); } #if !defined(HAS_TRUNCATE) && !defined(HAS_CHSIZE) && defined(F_FREESP) @@ -825,7 +1167,7 @@ Off_t length; /* length to set file to */ #endif /* F_FREESP */ bool -do_print(register SV *sv, PerlIO *fp) +Perl_do_print(pTHX_ register SV *sv, PerlIO *fp) { register char *tmps; STRLEN len; @@ -833,171 +1175,213 @@ do_print(register SV *sv, PerlIO *fp) /* assuming fp is checked earlier */ if (!sv) return TRUE; - if (ofmt) { + if (PL_ofmt) { if (SvGMAGICAL(sv)) mg_get(sv); if (SvIOK(sv) && SvIVX(sv) != 0) { - PerlIO_printf(fp, ofmt, (double)SvIVX(sv)); + PerlIO_printf(fp, PL_ofmt, (NV)SvIVX(sv)); return !PerlIO_error(fp); } if ( (SvNOK(sv) && SvNVX(sv) != 0.0) || (looks_like_number(sv) && sv_2nv(sv) != 0.0) ) { - PerlIO_printf(fp, ofmt, SvNVX(sv)); + PerlIO_printf(fp, PL_ofmt, SvNVX(sv)); return !PerlIO_error(fp); } } switch (SvTYPE(sv)) { case SVt_NULL: - if (dowarn) - warn(warn_uninit); + if (ckWARN(WARN_UNINITIALIZED)) + report_uninit(); return TRUE; case SVt_IV: if (SvIOK(sv)) { if (SvGMAGICAL(sv)) mg_get(sv); - PerlIO_printf(fp, "%ld", (long)SvIVX(sv)); + if (SvIsUV(sv)) + PerlIO_printf(fp, "%"UVuf, (UV)SvUVX(sv)); + else + PerlIO_printf(fp, "%"IVdf, (IV)SvIVX(sv)); return !PerlIO_error(fp); } /* FALL THROUGH */ default: + if (PerlIO_isutf8(fp)) { + if (!SvUTF8(sv)) + sv_utf8_upgrade(sv = sv_mortalcopy(sv)); + } + else if (DO_UTF8(sv)) { + if (!sv_utf8_downgrade((sv = sv_mortalcopy(sv)), TRUE)) { + Perl_warner(aTHX_ WARN_UTF8, "Wide character in print"); + } + } tmps = SvPV(sv, len); break; } - if (len && (PerlIO_write(fp,tmps,len) == 0 || PerlIO_error(fp))) + /* 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 */ + if (len && (PerlIO_write(fp,tmps,len) == 0)) return FALSE; return !PerlIO_error(fp); } I32 -my_stat(ARGSproto) +Perl_my_stat(pTHX) { - djSP; + dSP; IO *io; - GV* tmpgv; + GV* gv; - if (op->op_flags & OPf_REF) { + if (PL_op->op_flags & OPf_REF) { EXTEND(SP,1); - tmpgv = cGVOP->op_gv; + gv = cGVOP_gv; do_fstat: - io = GvIO(tmpgv); + io = GvIO(gv); if (io && IoIFP(io)) { - statgv = tmpgv; - sv_setpv(statname,""); - laststype = OP_STAT; - return (laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &statcache)); + PL_statgv = gv; + sv_setpv(PL_statname,""); + PL_laststype = OP_STAT; + return (PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache)); } else { - if (tmpgv == defgv) - return laststatval; - if (dowarn) - warn("Stat on unopened file <%s>", - GvENAME(tmpgv)); - statgv = Nullgv; - sv_setpv(statname,""); - return (laststatval = -1); + if (gv == PL_defgv) + return PL_laststatval; + if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) + report_evil_fh(gv, io, PL_op->op_type); + PL_statgv = Nullgv; + sv_setpv(PL_statname,""); + return (PL_laststatval = -1); } } else { SV* sv = POPs; char *s; + STRLEN n_a; PUTBACK; if (SvTYPE(sv) == SVt_PVGV) { - tmpgv = (GV*)sv; + gv = (GV*)sv; goto do_fstat; } else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) { - tmpgv = (GV*)SvRV(sv); + gv = (GV*)SvRV(sv); goto do_fstat; } - s = SvPV(sv, na); - statgv = Nullgv; - sv_setpv(statname, s); - laststype = OP_STAT; - laststatval = PerlLIO_stat(s, &statcache); - if (laststatval < 0 && dowarn && strchr(s, '\n')) - warn(warn_nl, "stat"); - return laststatval; + s = SvPV(sv, n_a); + PL_statgv = Nullgv; + sv_setpv(PL_statname, s); + 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"); + return PL_laststatval; } } I32 -my_lstat(ARGSproto) +Perl_my_lstat(pTHX) { - djSP; + dSP; SV *sv; - if (op->op_flags & OPf_REF) { + STRLEN n_a; + if (PL_op->op_flags & OPf_REF) { EXTEND(SP,1); - if (cGVOP->op_gv == defgv) { - if (laststype != OP_LSTAT) - croak("The stat preceding -l _ wasn't an lstat"); - return laststatval; + if (cGVOP_gv == PL_defgv) { + if (PL_laststype != OP_LSTAT) + Perl_croak(aTHX_ "The stat preceding -l _ wasn't an lstat"); + return PL_laststatval; } - croak("You can't use -l on a filehandle"); + Perl_croak(aTHX_ "You can't use -l on a filehandle"); } - laststype = OP_LSTAT; - statgv = Nullgv; + PL_laststype = OP_LSTAT; + PL_statgv = Nullgv; sv = POPs; PUTBACK; - sv_setpv(statname,SvPV(sv, na)); -#ifdef HAS_LSTAT - laststatval = PerlLIO_lstat(SvPV(sv, na),&statcache); -#else - laststatval = PerlLIO_stat(SvPV(sv, na),&statcache); -#endif - if (laststatval < 0 && dowarn && strchr(SvPV(sv, na), '\n')) - warn(warn_nl, "lstat"); - return laststatval; + 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"); + return PL_laststatval; +} + +bool +Perl_do_aexec(pTHX_ SV *really, register SV **mark, register SV **sp) +{ + return do_aexec5(really, mark, sp, 0, 0); } bool -do_aexec(SV *really, register SV **mark, register SV **sp) +Perl_do_aexec5(pTHX_ SV *really, register SV **mark, register SV **sp, + int fd, int do_report) { +#ifdef MACOS_TRADITIONAL + Perl_croak(aTHX_ "exec? I'm not *that* kind of operating system"); +#else register char **a; char *tmps; + STRLEN n_a; if (sp > mark) { - dTHR; - New(401,Argv, sp - mark + 1, char*); - a = Argv; + New(401,PL_Argv, sp - mark + 1, char*); + a = PL_Argv; while (++mark <= sp) { if (*mark) - *a++ = SvPVx(*mark, na); + *a++ = SvPVx(*mark, n_a); else *a++ = ""; } *a = Nullch; - if (*Argv[0] != '/') /* will execvp use PATH? */ + if (really) + tmps = SvPV(really, n_a); + if ((!really && *PL_Argv[0] != '/') || + (really && *tmps != '/')) /* will execvp use PATH? */ TAINT_ENV(); /* testing IFS here is overkill, probably */ - if (really && *(tmps = SvPV(really, na))) - PerlProc_execvp(tmps,Argv); + if (really && *tmps) + PerlProc_execvp(tmps,EXEC_ARGV_CAST(PL_Argv)); else - PerlProc_execvp(Argv[0],Argv); - if (dowarn) - warn("Can't exec \"%s\": %s", Argv[0], Strerror(errno)); + PerlProc_execvp(PL_Argv[0],EXEC_ARGV_CAST(PL_Argv)); + if (ckWARN(WARN_EXEC)) + Perl_warner(aTHX_ WARN_EXEC, "Can't exec \"%s\": %s", + (really ? tmps : PL_Argv[0]), Strerror(errno)); + if (do_report) { + int e = errno; + + PerlLIO_write(fd, (void*)&e, sizeof(int)); + PerlLIO_close(fd); + } } do_execfree(); +#endif return FALSE; } void -do_execfree(void) +Perl_do_execfree(pTHX) { - if (Argv) { - Safefree(Argv); - Argv = Null(char **); + if (PL_Argv) { + Safefree(PL_Argv); + PL_Argv = Null(char **); } - if (Cmd) { - Safefree(Cmd); - Cmd = Nullch; + if (PL_Cmd) { + Safefree(PL_Cmd); + PL_Cmd = Nullch; } } -#if !defined(OS2) && !defined(WIN32) && !defined(DJGPP) +#if !defined(OS2) && !defined(WIN32) && !defined(DJGPP) && !defined(EPOC) && !defined(MACOS_TRADITIONAL) bool -do_exec(char *cmd) +Perl_do_exec(pTHX_ char *cmd) +{ + return do_exec3(cmd,0,0); +} + +bool +Perl_do_exec3(pTHX_ char *cmd, int fd, int do_report) { register char **a; register char *s; @@ -1009,9 +1393,9 @@ do_exec(char *cmd) /* save an extra exec if possible */ #ifdef CSH - if (strnEQ(cmd,cshname,cshlen) && strnEQ(cmd+cshlen," -c",3)) { + if (strnEQ(cmd,PL_cshname,PL_cshlen) && strnEQ(cmd+PL_cshlen," -c",3)) { strcpy(flags,"-c"); - s = cmd+cshlen+3; + s = cmd+PL_cshlen+3; if (*s == 'f') { s++; strcat(flags,"f"); @@ -1027,7 +1411,7 @@ do_exec(char *cmd) *--s = '\0'; if (s[-1] == '\'') { *--s = '\0'; - PerlProc_execl(cshname,"csh", flags,ncmd,(char*)0); + PerlProc_execl(PL_cshname,"csh", flags,ncmd,(char*)0); *s = '\''; return FALSE; } @@ -1043,7 +1427,7 @@ do_exec(char *cmd) if (strnEQ(cmd,"exec",4) && isSPACE(cmd[4])) goto doshell; - for (s = cmd; *s && isALPHA(*s); s++) ; /* catch VAR=val gizmo */ + for (s = cmd; *s && isALNUM(*s); s++) ; /* catch VAR=val gizmo */ if (*s == '=') goto doshell; @@ -1053,16 +1437,30 @@ do_exec(char *cmd) *s = '\0'; break; } + /* handle the 2>&1 construct at the end */ + if (*s == '>' && s[1] == '&' && s[2] == '1' + && s > cmd + 1 && s[-1] == '2' && isSPACE(s[-2]) + && (!s[3] || isSPACE(s[3]))) + { + char *t = s + 3; + + while (*t && isSPACE(*t)) + ++t; + if (!*t && (dup2(1,2) != -1)) { + s[-2] = '\0'; + break; + } + } doshell: - PerlProc_execl(sh_path, "sh", "-c", cmd, (char*)0); + PerlProc_execl(PL_sh_path, "sh", "-c", cmd, (char*)0); return FALSE; } } - New(402,Argv, (s - cmd) / 2 + 2, char*); - Cmd = savepvn(cmd, s-cmd); - a = Argv; - for (s = Cmd; *s;) { + New(402,PL_Argv, (s - cmd) / 2 + 2, char*); + PL_Cmd = savepvn(cmd, s-cmd); + a = PL_Argv; + for (s = PL_Cmd; *s;) { while (*s && isSPACE(*s)) s++; if (*s) *(a++) = s; @@ -1071,14 +1469,23 @@ do_exec(char *cmd) *s++ = '\0'; } *a = Nullch; - if (Argv[0]) { - PerlProc_execvp(Argv[0],Argv); + if (PL_Argv[0]) { + PerlProc_execvp(PL_Argv[0],PL_Argv); if (errno == ENOEXEC) { /* for system V NIH syndrome */ do_execfree(); goto doshell; } - if (dowarn) - warn("Can't exec \"%s\": %s", Argv[0], Strerror(errno)); + { + int e = errno; + + if (ckWARN(WARN_EXEC)) + Perl_warner(aTHX_ WARN_EXEC, "Can't exec \"%s\": %s", + PL_Argv[0], Strerror(errno)); + if (do_report) { + PerlLIO_write(fd, (void*)&e, sizeof(int)); + PerlLIO_close(fd); + } + } } do_execfree(); return FALSE; @@ -1087,23 +1494,23 @@ do_exec(char *cmd) #endif /* OS2 || WIN32 */ I32 -apply(I32 type, register SV **mark, register SV **sp) +Perl_apply(pTHX_ I32 type, register SV **mark, register SV **sp) { - dTHR; register I32 val; register I32 val2; register I32 tot = 0; char *what; char *s; SV **oldmark = mark; + STRLEN n_a; #define APPLY_TAINT_PROPER() \ - STMT_START { \ - if (tainting && tainted) { goto taint_proper_label; } \ + STMT_START { \ + if (PL_tainted) { TAINT_PROPER(what); } \ } STMT_END /* This is a first heuristic; it doesn't catch tainting magic. */ - if (tainting) { + if (PL_tainting) { while (++mark <= sp) { if (SvTAINTED(*mark)) { TAINT; @@ -1121,7 +1528,7 @@ apply(I32 type, register SV **mark, register SV **sp) APPLY_TAINT_PROPER(); tot = sp - mark; while (++mark <= sp) { - char *name = SvPVx(*mark, na); + char *name = SvPVx(*mark, n_a); APPLY_TAINT_PROPER(); if (PerlLIO_chmod(name, val)) tot--; @@ -1138,7 +1545,7 @@ apply(I32 type, register SV **mark, register SV **sp) APPLY_TAINT_PROPER(); tot = sp - mark; while (++mark <= sp) { - char *name = SvPVx(*mark, na); + char *name = SvPVx(*mark, n_a); APPLY_TAINT_PROPER(); if (PerlLIO_chown(name, val, val2)) tot--; @@ -1146,7 +1553,7 @@ apply(I32 type, register SV **mark, register SV **sp) } 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. @@ -1158,12 +1565,12 @@ nothing in the core. APPLY_TAINT_PROPER(); if (mark == sp) break; - s = SvPVx(*++mark, na); + s = SvPVx(*++mark, n_a); if (isUPPER(*s)) { if (*s == 'S' && s[1] == 'I' && s[2] == 'G') s += 3; if (!(val = whichsig(s))) - croak("Unrecognized signal name \"%s\"",s); + Perl_croak(aTHX_ "Unrecognized signal name \"%s\"",s); } else val = SvIVx(*mark); @@ -1228,18 +1635,14 @@ nothing in the core. APPLY_TAINT_PROPER(); tot = sp - mark; while (++mark <= sp) { - s = SvPVx(*mark, na); + s = SvPVx(*mark, n_a); APPLY_TAINT_PROPER(); - if (euid || unsafe) { + if (PL_euid || PL_unsafe) { if (UNLINK(s)) tot--; } else { /* don't let root wipe out directories without -U */ -#ifdef HAS_LSTAT - if (PerlLIO_lstat(s,&statbuf) < 0 || S_ISDIR(statbuf.st_mode)) -#else - if (PerlLIO_stat(s,&statbuf) < 0 || S_ISDIR(statbuf.st_mode)) -#endif + if (PerlLIO_lstat(s,&PL_statbuf) < 0 || S_ISDIR(PL_statbuf.st_mode)) tot--; else { if (UNLINK(s)) @@ -1257,23 +1660,23 @@ nothing in the core. struct utimbuf utbuf; #else struct { - long actime; - long modtime; + Time_t actime; + Time_t modtime; } utbuf; #endif Zero(&utbuf, sizeof utbuf, char); #ifdef BIG_TIME - utbuf.actime = (Time_t)SvNVx(*++mark); /* time accessed */ - utbuf.modtime = (Time_t)SvNVx(*++mark); /* time modified */ + utbuf.actime = (Time_t)SvNVx(*++mark); /* time accessed */ + utbuf.modtime = (Time_t)SvNVx(*++mark); /* time modified */ #else - utbuf.actime = SvIVx(*++mark); /* time accessed */ - utbuf.modtime = SvIVx(*++mark); /* time modified */ + utbuf.actime = (Time_t)SvIVx(*++mark); /* time accessed */ + utbuf.modtime = (Time_t)SvIVx(*++mark); /* time modified */ #endif APPLY_TAINT_PROPER(); tot = sp - mark; while (++mark <= sp) { - char *name = SvPVx(*mark, na); + char *name = SvPVx(*mark, n_a); APPLY_TAINT_PROPER(); if (PerlLIO_utime(name, &utbuf)) tot--; @@ -1286,17 +1689,15 @@ nothing in the core. } return tot; - taint_proper_label: - TAINT_PROPER(what); - return 0; /* this should never happen */ - #undef APPLY_TAINT_PROPER } /* Do the permissions allow some operation? Assumes statcache already set. */ #ifndef VMS /* VMS' cando is in vms.c */ -I32 -cando(I32 bit, I32 effective, register struct stat *statbufp) +bool +Perl_cando(pTHX_ Mode_t mode, Uid_t effective, register 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. */ { #ifdef DOSISH /* [Comments and code from Len Reed] @@ -1320,11 +1721,11 @@ cando(I32 bit, I32 effective, register struct stat *statbufp) /* 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 (bit & statbufp->st_mode) ? TRUE : FALSE; + return (mode & statbufp->st_mode) ? TRUE : FALSE; #else /* ! DOSISH */ - if ((effective ? euid : uid) == 0) { /* root is special */ - if (bit == S_IXUSR) { + 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; } @@ -1332,25 +1733,29 @@ cando(I32 bit, I32 effective, register struct stat *statbufp) return TRUE; /* root reads and writes anything */ return FALSE; } - if (statbufp->st_uid == (effective ? euid : uid) ) { - if (statbufp->st_mode & bit) + if (statbufp->st_uid == (effective ? PL_euid : PL_uid) ) { + if (statbufp->st_mode & mode) return TRUE; /* ok as "user" */ } - else if (ingroup((I32)statbufp->st_gid,effective)) { - if (statbufp->st_mode & bit >> 3) + else if (ingroup(statbufp->st_gid,effective)) { + if (statbufp->st_mode & mode >> 3) return TRUE; /* ok as "group" */ } - else if (statbufp->st_mode & bit >> 6) + else if (statbufp->st_mode & mode >> 6) return TRUE; /* ok as "other" */ return FALSE; #endif /* ! DOSISH */ } #endif /* ! VMS */ -I32 -ingroup(I32 testgid, I32 effective) +bool +Perl_ingroup(pTHX_ Gid_t testgid, Uid_t effective) { - if (testgid == (effective ? egid : gid)) +#ifdef MACOS_TRADITIONAL + /* This is simply not correct for AppleShare, but fix it yerself. */ + return TRUE; +#else + if (testgid == (effective ? PL_egid : PL_gid)) return TRUE; #ifdef HAS_GETGROUPS #ifndef NGROUPS @@ -1367,14 +1772,14 @@ ingroup(I32 testgid, I32 effective) } #endif return FALSE; +#endif } #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM) I32 -do_ipcget(I32 optype, SV **mark, SV **sp) +Perl_do_ipcget(pTHX_ I32 optype, SV **mark, SV **sp) { - dTHR; key_t key; I32 n, flags; @@ -1398,16 +1803,15 @@ do_ipcget(I32 optype, SV **mark, SV **sp) #endif #if !defined(HAS_MSG) || !defined(HAS_SEM) || !defined(HAS_SHM) default: - croak("%s not implemented", op_desc[optype]); + Perl_croak(aTHX_ "%s not implemented", PL_op_desc[optype]); #endif } return -1; /* should never happen */ } I32 -do_ipcctl(I32 optype, SV **mark, SV **sp) +Perl_do_ipcctl(pTHX_ I32 optype, SV **mark, SV **sp) { - dTHR; SV *astr; char *a; I32 id, n, cmd, infosize, getinfo; @@ -1436,14 +1840,18 @@ do_ipcctl(I32 optype, SV **mark, SV **sp) #endif #ifdef HAS_SEM case OP_SEMCTL: +#ifdef Semctl if (cmd == IPC_STAT || cmd == IPC_SET) infosize = sizeof(struct semid_ds); else if (cmd == GETALL || cmd == SETALL) { struct semid_ds semds; union semun semun; - +#ifdef EXTRA_F_IN_SEMUN_BUF + semun.buff = &semds; +#else semun.buf = &semds; +#endif getinfo = (cmd == GETALL); if (Semctl(id, 0, IPC_STAT, semun) == -1) return -1; @@ -1451,11 +1859,14 @@ do_ipcctl(I32 optype, SV **mark, SV **sp) /* "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: - croak("%s not implemented", op_desc[optype]); + Perl_croak(aTHX_ "%s not implemented", PL_op_desc[optype]); #endif } @@ -1471,14 +1882,16 @@ do_ipcctl(I32 optype, SV **mark, SV **sp) { a = SvPV(astr, len); if (len != infosize) - croak("Bad arg length for %s, is %lu, should be %ld", - op_desc[optype], (unsigned long)len, (long)infosize); + Perl_croak(aTHX_ "Bad arg length for %s, is %lu, should be %ld", + PL_op_desc[optype], + (unsigned long)len, + (long)infosize); } } else { IV i = SvIV(astr); - a = (char *)i; /* ouch */ + a = INT2PTR(char *,i); /* ouch */ } SETERRNO(0,0); switch (optype) @@ -1490,10 +1903,18 @@ do_ipcctl(I32 optype, SV **mark, SV **sp) #endif #ifdef HAS_SEM case OP_SEMCTL: { +#ifdef Semctl union semun unsemds; +#ifdef EXTRA_F_IN_SEMUN_BUF + unsemds.buff = (struct semid_ds *)a; +#else unsemds.buf = (struct semid_ds *)a; +#endif ret = Semctl(id, n, cmd, unsemds); +#else + Perl_croak(aTHX_ "%s not implemented", PL_op_desc[optype]); +#endif } break; #endif @@ -1512,10 +1933,9 @@ do_ipcctl(I32 optype, SV **mark, SV **sp) } I32 -do_msgsnd(SV **mark, SV **sp) +Perl_do_msgsnd(pTHX_ SV **mark, SV **sp) { #ifdef HAS_MSG - dTHR; SV *mstr; char *mbuf; I32 id, msize, flags; @@ -1526,19 +1946,18 @@ do_msgsnd(SV **mark, SV **sp) flags = SvIVx(*++mark); mbuf = SvPV(mstr, len); if ((msize = len - sizeof(long)) < 0) - croak("Arg too short for msgsnd"); + Perl_croak(aTHX_ "Arg too short for msgsnd"); SETERRNO(0,0); return msgsnd(id, (struct msgbuf *)mbuf, msize, flags); #else - croak("msgsnd not implemented"); + Perl_croak(aTHX_ "msgsnd not implemented"); #endif } I32 -do_msgrcv(SV **mark, SV **sp) +Perl_do_msgrcv(pTHX_ SV **mark, SV **sp) { #ifdef HAS_MSG - dTHR; SV *mstr; char *mbuf; long mtype; @@ -1547,35 +1966,35 @@ do_msgrcv(SV **mark, SV **sp) id = SvIVx(*++mark); mstr = *++mark; + /* suppress warning when reading into undef var --jhi */ + if (! SvOK(mstr)) + sv_setpvn(mstr, "", 0); msize = SvIVx(*++mark); mtype = (long)SvIVx(*++mark); flags = SvIVx(*++mark); - if (SvTHINKFIRST(mstr)) { - if (SvREADONLY(mstr)) - croak("Can't msgrcv to readonly var"); - if (SvROK(mstr)) - sv_unref(mstr); - } SvPV_force(mstr, len); mbuf = SvGROW(mstr, sizeof(long)+msize+1); - + SETERRNO(0,0); ret = msgrcv(id, (struct msgbuf *)mbuf, msize, mtype, flags); if (ret >= 0) { SvCUR_set(mstr, sizeof(long)+ret); *SvEND(mstr) = '\0'; +#ifndef INCOMPLETE_TAINTS + /* who knows who has been playing with this message? */ + SvTAINTED_on(mstr); +#endif } return ret; #else - croak("msgrcv not implemented"); + Perl_croak(aTHX_ "msgrcv not implemented"); #endif } I32 -do_semop(SV **mark, SV **sp) +Perl_do_semop(pTHX_ SV **mark, SV **sp) { #ifdef HAS_SEM - dTHR; SV *opstr; char *opbuf; I32 id; @@ -1592,15 +2011,14 @@ do_semop(SV **mark, SV **sp) SETERRNO(0,0); return semop(id, (struct sembuf *)opbuf, opsize/sizeof(struct sembuf)); #else - croak("semop not implemented"); + Perl_croak(aTHX_ "semop not implemented"); #endif } I32 -do_shmio(I32 optype, SV **mark, SV **sp) +Perl_do_shmio(pTHX_ I32 optype, SV **mark, SV **sp) { #ifdef HAS_SHM - dTHR; SV *mstr; char *mbuf, *shm; I32 id, mpos, msize; @@ -1622,6 +2040,9 @@ do_shmio(I32 optype, SV **mark, SV **sp) if (shm == (char *)-1) /* I hate System V IPC, I really do */ return -1; if (optype == OP_SHMREAD) { + /* suppress warning when reading into undef var (tchrist 3/Mar/00) */ + if (! SvOK(mstr)) + sv_setpvn(mstr, "", 0); SvPV_force(mstr, len); mbuf = SvGROW(mstr, msize+1); @@ -1629,6 +2050,10 @@ do_shmio(I32 optype, SV **mark, SV **sp) SvCUR_set(mstr, msize); *SvEND(mstr) = '\0'; SvSETMAGIC(mstr); +#ifndef INCOMPLETE_TAINTS + /* who knows who has been playing with this shared memory? */ + SvTAINTED_on(mstr); +#endif } else { I32 n; @@ -1642,9 +2067,155 @@ do_shmio(I32 optype, SV **mark, SV **sp) } return shmdt(shm); #else - croak("shm I/O not implemented"); + Perl_croak(aTHX_ "shm I/O not implemented"); #endif } #endif /* SYSV IPC */ +/* +=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 proccess. +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) +{ + SV *tmpcmd = NEWSV(55, 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 +#include +#include +#include + char rslt[NAM$C_MAXRSS+1+sizeof(unsigned short int)] = {'\0','\0'}; + char vmsspec[NAM$C_MAXRSS+1]; + char *rstr = rslt + sizeof(unsigned short int), *begin, *end, *cp; + char tmpfnam[L_tmpnam] = "SYS$SCRATCH:"; + $DESCRIPTOR(dfltdsc,"SYS$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$l_fnb + but that's unsupported, so I don't want to do it now and + have it bite someone in the future. */ + strcat(tmpfnam,PerlLIO_tmpnam(NULL)); + cp = SvPV(tmpglob,i); + for (; i; i--) { + if (cp[i] == ';') hasver = 1; + if (cp[i] == '.') { + if (sts) hasver = 1; + else sts = 1; + } + if (cp[i] == '/') { + hasdir = isunix = 1; + break; + } + if (cp[i] == ']' || cp[i] == '>' || cp[i] == ':') { + hasdir = 1; + break; + } + } + if ((tmpfp = PerlIO_open(tmpfnam,"w+","fop=dlt")) != NULL) { + Stat_t st; + if (!PerlLIO_stat(SvPVX(tmpglob),&st) && S_ISDIR(st.st_mode)) + ok = ((wilddsc.dsc$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$a_pointer); + while (ok && ((sts = lib$find_file(&wilddsc,&rsdsc,&cxt, + &dfltdsc,NULL,NULL,NULL))&1)) { + end = rstr + (unsigned long int) *rslt; + if (!hasver) while (*end != ';') end--; + *(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) + sv_setpvn(tmpcmd, PL_cshname, PL_cshlen); + sv_catpv(tmpcmd, " -cf 'set nonomatch; glob "); + sv_catsv(tmpcmd, tmpglob); + 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 */ + (void)do_open(PL_last_in_gv, SvPVX(tmpcmd), SvCUR(tmpcmd), + FALSE, O_RDONLY, 0, Nullfp); + fp = IoIFP(io); +#endif /* !VMS */ + LEAVE; + return fp; +}