X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=doio.c;h=c7c6455dcd08c9ffb29f5fe7c5ab212433ad1177;hb=3937c24e3f4ed26beafd7a2fbe3a20466bfc2b2d;hp=ce0eae37861f50426d21bfb55bd5b9e8918c63dd;hpb=79072805bf63abe5b5978b5928ab00d360ea3e7f;p=p5sagit%2Fp5-mst-13.2.git diff --git a/doio.c b/doio.c index ce0eae3..c7c6455 100644 --- a/doio.c +++ b/doio.c @@ -1,54 +1,17 @@ -/* $RCSfile: doio.c,v $$Revision: 4.1 $$Date: 92/08/07 17:19:42 $ +/* doio.c * - * Copyright (c) 1991, Larry Wall + * Copyright (c) 1991-1997, 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. * - * $Log: doio.c,v $ - * Revision 4.1 92/08/07 17:19:42 lwall - * Stage 6 Snapshot - * - * Revision 4.0.1.6 92/06/11 21:08:16 lwall - * patch34: some systems don't declare h_errno extern in header files - * - * Revision 4.0.1.5 92/06/08 13:00:21 lwall - * patch20: some machines don't define ENOTSOCK in errno.h - * patch20: new warnings for failed use of stat operators on filenames with \n - * patch20: wait failed when STDOUT or STDERR reopened to a pipe - * patch20: end of file latch not reset on reopen of STDIN - * patch20: seek(HANDLE, 0, 1) went to eof because of ancient Ultrix workaround - * patch20: fixed memory leak on system() for vfork() machines - * patch20: get*by* routines now return something useful in a scalar context - * patch20: h_errno now accessible via $? - * - * Revision 4.0.1.4 91/11/05 16:51:43 lwall - * patch11: prepared for ctype implementations that don't define isascii() - * patch11: perl mistook some streams for sockets because they return mode 0 too - * patch11: reopening STDIN, STDOUT and STDERR failed on some machines - * patch11: certain perl errors should set EBADF so that $! looks better - * patch11: truncate on a closed filehandle could dump - * patch11: stats of _ forgot whether prior stat was actually lstat - * patch11: -T returned true on NFS directory - * - * Revision 4.0.1.3 91/06/10 01:21:19 lwall - * patch10: read didn't work from character special files open for writing - * patch10: close-on-exec wrongly set on system file descriptors - * - * Revision 4.0.1.2 91/06/07 10:53:39 lwall - * patch4: new copyright notice - * patch4: system fd's are now treated specially - * patch4: added $^F variable to specify maximum system fd, default 2 - * patch4: character special files now opened with bidirectional stdio buffers - * patch4: taintchecks could improperly modify parent in vfork() - * patch4: many, many itty-bitty portability fixes - * - * Revision 4.0.1.1 91/04/11 17:41:06 lwall - * patch1: hopefully straightened out some of the Xenix mess - * - * Revision 4.0 91/03/20 01:07:06 lwall - * 4.0 baseline. - * + */ + +/* + * "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." */ #include "EXTERN.h" @@ -64,154 +27,259 @@ #endif #ifdef HAS_SHM #include +# ifndef HAS_SHMAT_PROTOTYPE + extern Shmat_t shmat _((int, char *, int)); +# endif #endif #endif #ifdef I_UTIME -#include +# if defined(_MSC_VER) || defined(__MINGW32__) +# include +# else +# include +# endif #endif + #ifdef I_FCNTL #include #endif #ifdef I_SYS_FILE #include #endif +#ifdef O_EXCL +# define OPEN_EXCL O_EXCL +#else +# define OPEN_EXCL 0 +#endif + +#if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX) +#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 + +/* 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 -do_open(gv,name,len) -GV *gv; -register char *name; -I32 len; +do_open(GV *gv, register char *name, I32 len, int as_raw, int rawmode, int rawperm, PerlIO *supplied_fp) { - FILE *fp; - register IO *io = GvIO(gv); - char *myname = savestr(name); - int result; - int fd; - int writing = 0; - char mode[3]; /* stdio file mode ("r\0" or "r+\0") */ - FILE *saveifp = Nullfp; - FILE *saveofp = Nullfp; + register IO *io = GvIOn(gv); + PerlIO *saveifp = Nullfp; + PerlIO *saveofp = Nullfp; char savetype = ' '; + int writing = 0; + PerlIO *fp; + int fd; + int result; + bool was_fdopen = FALSE; - mode[0] = mode[1] = mode[2] = '\0'; - name = myname; - forkprocess = 1; /* assume true if no fork */ - while (len && isSPACE(name[len-1])) - name[--len] = '\0'; - if (!io) - io = GvIO(gv) = newIO(); - else if (io->ifp) { - fd = fileno(io->ifp); - if (io->type == '-') + PL_forkprocess = 1; /* assume true if no fork */ + + if (IoIFP(io)) { + fd = PerlIO_fileno(IoIFP(io)); + if (IoTYPE(io) == '-') result = 0; - else if (fd <= maxsysfd) { - saveifp = io->ifp; - saveofp = io->ofp; - savetype = io->type; + else if (fd <= PL_maxsysfd) { + saveifp = IoIFP(io); + saveofp = IoOFP(io); + savetype = IoTYPE(io); result = 0; } - else if (io->type == '|') - result = my_pclose(io->ifp); - else if (io->ifp != io->ofp) { - if (io->ofp) { - result = fclose(io->ofp); - fclose(io->ifp); /* clear stdio, fd already closed */ + else if (IoTYPE(io) == '|') + 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 */ } else - result = fclose(io->ifp); + result = PerlIO_close(IoIFP(io)); } else - result = fclose(io->ifp); - if (result == EOF && fd > maxsysfd) - fprintf(stderr,"Warning: unable to close filehandle %s properly.\n", + result = PerlIO_close(IoIFP(io)); + if (result == EOF && fd > PL_maxsysfd) + PerlIO_printf(PerlIO_stderr(), "Warning: unable to close filehandle %s properly.\n", GvENAME(gv)); - io->ofp = io->ifp = Nullfp; + IoOFP(io) = IoIFP(io) = Nullfp; } - if (*name == '+' && len > 1 && name[len-1] != '|') { /* scary */ - mode[1] = *name++; - mode[2] = '\0'; - --len; - writing = 1; - } - else { - mode[1] = '\0'; - } - io->type = *name; - if (*name == '|') { - /*SUPPRESS 530*/ - for (name++; isSPACE(*name); name++) ; - if (strNE(name,"-")) - TAINT_ENV(); - TAINT_PROPER("piped open"); - fp = my_popen(name,"w"); - writing = 1; + + if (as_raw) { +#if 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) = '<'; + break; + case O_WRONLY: + IoTYPE(io) = '>'; + break; + case O_RDWR: + default: + IoTYPE(io) = '+'; + break; + } + + writing = (result > 0); + fd = PerlLIO_open3(name, rawmode, rawperm); + + if (fd == -1) + fp = NULL; + else { + char *fpmode; + if (result == O_RDONLY) + fpmode = "r"; +#ifdef O_APPEND + else if (rawmode & O_APPEND) + fpmode = (result == O_WRONLY) ? "a" : "a+"; +#endif + else + fpmode = (result == O_WRONLY) ? "w" : "r+"; + fp = PerlIO_fdopen(fd, fpmode); + if (!fp) + PerlLIO_close(fd); + } } - else if (*name == '>') { - TAINT_PROPER("open"); - name++; - if (*name == '>') { - mode[0] = io->type = 'a'; - name++; + 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; + writing = 1; } - else - mode[0] = 'w'; - writing = 1; - if (*name == '&') { - duplicity: + + if (*name == '|') { + /*SUPPRESS 530*/ + for (name++; isSPACE(*name); name++) ; + if (strNE(name,"-")) + TAINT_ENV(); + TAINT_PROPER("piped open"); + if (name[strlen(name)-1] == '|') { + dTHR; + name[strlen(name)-1] = '\0' ; + if (ckWARN(WARN_PIPE)) + warner(WARN_PIPE, "Can't do bidirectional pipe"); + } + fp = PerlProc_popen(name,"w"); + writing = 1; + } + else if (*name == '>') { + TAINT_PROPER("open"); name++; - while (isSPACE(*name)) + if (*name == '>') { + mode[0] = IoTYPE(io) = 'a'; name++; - if (isDIGIT(*name)) - fd = atoi(name); - else { - gv = gv_fetchpv(name,FALSE); - if (!gv || !GvIO(gv)) { + } + else + mode[0] = 'w'; + writing = 1; + + if (*name == '&') { + duplicity: + dodup = 1; + name++; + if (*name == '=') { + dodup = 0; + name++; + } + if (!*name && supplied_fp) + fp = supplied_fp; + else { + /*SUPPRESS 530*/ + for (; isSPACE(*name); name++) ; + if (isDIGIT(*name)) + fd = atoi(name); + else { + IO* thatio; + gv = gv_fetchpv(name,FALSE,SVt_PVIO); + thatio = GvIO(gv); + if (!thatio) { #ifdef EINVAL - errno = EINVAL; + SETERRNO(EINVAL,SS$_IVCHAN); #endif - goto say_false; - } - if (GvIO(gv) && GvIO(gv)->ifp) { - fd = fileno(GvIO(gv)->ifp); - if (GvIO(gv)->type == 's') - io->type = 's'; + goto say_false; + } + if (IoIFP(thatio)) { + fd = PerlIO_fileno(IoIFP(thatio)); + if (IoTYPE(thatio) == 's') + IoTYPE(io) = 's'; + } + else + fd = -1; + } + if (dodup) + fd = PerlLIO_dup(fd); + else + was_fdopen = TRUE; + if (!(fp = PerlIO_fdopen(fd,mode))) { + if (dodup) + PerlLIO_close(fd); + } } - else - fd = -1; - } - if (!(fp = fdopen(fd = dup(fd),mode))) { - close(fd); - } - } - else { - while (isSPACE(*name)) - name++; - if (strEQ(name,"-")) { - fp = stdout; - io->type = '-'; } - else { - fp = fopen(name,mode); + else { + /*SUPPRESS 530*/ + for (; isSPACE(*name); name++) ; + if (strEQ(name,"-")) { + fp = PerlIO_stdout(); + IoTYPE(io) = '-'; + } + else { + fp = PerlIO_open(name,mode); + } } } - } - else { - if (*name == '<') { + else if (*name == '<') { + /*SUPPRESS 530*/ + for (name++; isSPACE(*name); name++) ; mode[0] = 'r'; - name++; - while (isSPACE(*name)) - name++; if (*name == '&') goto duplicity; if (strEQ(name,"-")) { - fp = stdin; - io->type = '-'; + fp = PerlIO_stdin(); + IoTYPE(io) = '-'; } else - fp = fopen(name,mode); + fp = PerlIO_open(name,mode); } - else if (name[len-1] == '|') { + else if (len > 1 && name[len-1] == '|') { name[--len] = '\0'; while (len && isSPACE(name[len-1])) name[--len] = '\0'; @@ -220,109 +288,116 @@ I32 len; if (strNE(name,"-")) TAINT_ENV(); TAINT_PROPER("piped open"); - fp = my_popen(name,"r"); - io->type = '|'; + fp = PerlProc_popen(name,"r"); + IoTYPE(io) = '|'; } else { - io->type = '<'; + IoTYPE(io) = '<'; /*SUPPRESS 530*/ for (; isSPACE(*name); name++) ; if (strEQ(name,"-")) { - fp = stdin; - io->type = '-'; + fp = PerlIO_stdin(); + IoTYPE(io) = '-'; } else - fp = fopen(name,"r"); + fp = PerlIO_open(name,"r"); } } if (!fp) { - if (dowarn && io->type == '<' && index(name, '\n')) - warn(warn_nl, "open"); - Safefree(myname); + dTHR; + if (ckWARN(WARN_NEWLINE) && IoTYPE(io) == '<' && strchr(name, '\n')) + warner(WARN_NEWLINE, PL_warn_nl, "open"); goto say_false; } - Safefree(myname); - if (io->type && - io->type != '|' && io->type != '-') { - if (fstat(fileno(fp),&statbuf) < 0) { - (void)fclose(fp); + if (IoTYPE(io) && + IoTYPE(io) != '|' && IoTYPE(io) != '-') { + dTHR; + if (PerlLIO_fstat(PerlIO_fileno(fp),&PL_statbuf) < 0) { + (void)PerlIO_close(fp); goto say_false; } - if (S_ISSOCK(statbuf.st_mode)) - io->type = 's'; /* in case a socket was passed in to us */ + if (S_ISSOCK(PL_statbuf.st_mode)) + IoTYPE(io) = 's'; /* 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 ) { - I32 buflen = sizeof tokenbuf; - if (getsockname(fileno(fp), tokenbuf, &buflen) >= 0 - || errno != ENOTSOCK) - io->type = 's'; /* some OS's return 0 on fstat()ed socket */ + 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 */ /* but some return 0 for streams too, sigh */ } #endif } if (saveifp) { /* must use old fp? */ - fd = fileno(saveifp); + fd = PerlIO_fileno(saveifp); if (saveofp) { - fflush(saveofp); /* emulate fclose() */ + PerlIO_flush(saveofp); /* emulate PerlIO_close() */ if (saveofp != saveifp) { /* was a socket? */ - fclose(saveofp); + PerlIO_close(saveofp); if (fd > 2) Safefree(saveofp); } } - if (fd != fileno(fp)) { + if (fd != PerlIO_fileno(fp)) { int pid; SV *sv; - dup2(fileno(fp), fd); - sv = *av_fetch(fdpid,fileno(fp),TRUE); - SvUPGRADE(sv, SVt_IV); - pid = SvIV(sv); - SvIV(sv) = 0; - sv = *av_fetch(fdpid,fd,TRUE); - SvUPGRADE(sv, SVt_IV); - SvIV(sv) = pid; - fclose(fp); + PerlLIO_dup2(PerlIO_fileno(fp), fd); + sv = *av_fetch(PL_fdpid,PerlIO_fileno(fp),TRUE); + (void)SvUPGRADE(sv, SVt_IV); + pid = SvIVX(sv); + SvIVX(sv) = 0; + sv = *av_fetch(PL_fdpid,fd,TRUE); + (void)SvUPGRADE(sv, SVt_IV); + SvIVX(sv) = pid; + if (!was_fdopen) + PerlIO_close(fp); } fp = saveifp; - clearerr(fp); + PerlIO_clearerr(fp); + } +#if defined(HAS_FCNTL) && defined(F_SETFD) + { + int save_errno = errno; + fd = PerlIO_fileno(fp); + fcntl(fd,F_SETFD,fd > PL_maxsysfd); /* can change errno */ + errno = save_errno; } -#if defined(HAS_FCNTL) && defined(FFt_SETFD) - fd = fileno(fp); - fcntl(fd,FFt_SETFD,fd > maxsysfd); #endif - io->ifp = fp; + IoIFP(io) = fp; if (writing) { - if (io->type == 's' - || (io->type == '>' && S_ISCHR(statbuf.st_mode)) ) { - if (!(io->ofp = fdopen(fileno(fp),"w"))) { - fclose(fp); - io->ifp = Nullfp; + dTHR; + if (IoTYPE(io) == 's' + || (IoTYPE(io) == '>' && S_ISCHR(PL_statbuf.st_mode)) ) { + if (!(IoOFP(io) = PerlIO_fdopen(PerlIO_fileno(fp),"w"))) { + PerlIO_close(fp); + IoIFP(io) = Nullfp; goto say_false; } } else - io->ofp = fp; + IoOFP(io) = fp; } return TRUE; say_false: - io->ifp = saveifp; - io->ofp = saveofp; - io->type = savetype; + IoIFP(io) = saveifp; + IoOFP(io) = saveofp; + IoTYPE(io) = savetype; return FALSE; } -FILE * -nextargv(gv) -register GV *gv; +PerlIO * +nextargv(register GV *gv) { register SV *sv; #ifndef FLEXFILENAMES @@ -332,150 +407,167 @@ register GV *gv; int fileuid; int filegid; - if (!argvoutgv) - argvoutgv = gv_fetchpv("ARGVOUT",TRUE); - if (filemode & (S_ISUID|S_ISGID)) { - fflush(GvIO(argvoutgv)->ifp); /* chmod must follow last write */ + if (!PL_argvoutgv) + PL_argvoutgv = gv_fetchpv("ARGVOUT",TRUE,SVt_PVIO); + 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)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 = SvPVnx(GvSV(gv)); - if (do_open(gv,oldname,SvCUR(GvSV(gv)))) { - 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 (strEQ(oldname,"-")) { - sv_free(sv); - defoutgv = gv_fetchpv("STDOUT",TRUE); - return GvIO(gv)->ifp; + 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; + filedev = PL_statbuf.st_dev; + fileino = PL_statbuf.st_ino; #endif - filemode = statbuf.st_mode; - fileuid = statbuf.st_uid; - filegid = statbuf.st_gid; - if (!S_ISREG(filemode)) { + PL_filemode = PL_statbuf.st_mode; + fileuid = PL_statbuf.st_uid; + filegid = PL_statbuf.st_gid; + if (!S_ISREG(PL_filemode)) { warn("Can't do inplace edit: %s is not a regular file", - oldname ); + PL_oldname ); do_close(gv,FALSE); - sv_free(sv); continue; } - if (*inplace) { -#ifdef SUFFIX - add_suffix(sv,inplace); -#else - sv_catpv(sv,inplace); -#endif + if (*PL_inplace) { + char *star = strchr(PL_inplace, '*'); + if (star) { + char *begin = PL_inplace; + sv_setpvn(sv, "", 0); + do { + sv_catpvn(sv, begin, star - begin); + sv_catpvn(sv, PL_oldname, oldlen); + begin = ++star; + } while ((star = strchr(begin, '*'))); + if (*begin) + sv_catpv(sv,begin); + } + else { + sv_catpv(sv,PL_inplace); + } #ifndef FLEXFILENAMES - if (stat(SvPV(sv),&statbuf) >= 0 - && statbuf.st_dev == filedev - && statbuf.st_ino == fileino ) { - warn("Can't do inplace edit: %s > 14 characters", - SvPV(sv) ); + 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) ); do_close(gv,FALSE); - sv_free(sv); continue; } #endif #ifdef HAS_RENAME #ifndef DOSISH - if (rename(oldname,SvPV(sv)) < 0) { + if (PerlLIO_rename(PL_oldname,SvPVX(sv)) < 0) { warn("Can't rename %s to %s: %s, skipping file", - oldname, SvPV(sv), strerror(errno) ); + PL_oldname, SvPVX(sv), Strerror(errno) ); do_close(gv,FALSE); - sv_free(sv); continue; } #else do_close(gv,FALSE); - (void)unlink(SvPV(sv)); - (void)rename(oldname,SvPV(sv)); - do_open(gv,SvPV(sv),SvCUR(GvSV(gv))); -#endif /* MSDOS */ + (void)PerlLIO_unlink(SvPVX(sv)); + (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(SvPV(sv)); - if (link(oldname,SvPV(sv)) < 0) { + (void)UNLINK(SvPVX(sv)); + if (link(PL_oldname,SvPVX(sv)) < 0) { warn("Can't rename %s to %s: %s, skipping file", - oldname, SvPV(sv), strerror(errno) ); + PL_oldname, SvPVX(sv), Strerror(errno) ); do_close(gv,FALSE); - sv_free(sv); continue; } - (void)UNLINK(oldname); + (void)UNLINK(PL_oldname); #endif } else { -#ifndef DOSISH - if (UNLINK(oldname) < 0) { - warn("Can't rename %s to %s: %s, skipping file", - oldname, SvPV(sv), strerror(errno) ); +#if !defined(DOSISH) && !defined(AMIGAOS) +# ifndef VMS /* Don't delete; use automatic file versioning */ + if (UNLINK(PL_oldname) < 0) { + warn("Can't remove %s: %s, skipping file", + PL_oldname, Strerror(errno) ); do_close(gv,FALSE); - sv_free(sv); continue; } +# endif #else - fatal("Can't do inplace edit without backup"); + croak("Can't do inplace edit without backup"); #endif } - sv_setpvn(sv,">",1); - sv_catpv(sv,oldname); - errno = 0; /* in case sprintf set errno */ - if (!do_open(argvoutgv,SvPV(sv),SvCUR(sv))) { + sv_setpvn(sv,">",!PL_inplace); + sv_catpvn(sv,PL_oldname,oldlen); + SETERRNO(0,0); /* in case sprintf set 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 warn("Can't do inplace edit on %s: %s", - oldname, strerror(errno) ); + PL_oldname, Strerror(errno) ); do_close(gv,FALSE); - sv_free(sv); continue; } - defoutgv = argvoutgv; - lastfd = fileno(GvIO(argvoutgv)->ifp); - (void)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 - (void)chmod(oldname,filemode); +# if !(defined(WIN32) && defined(__BORLANDC__)) + /* Borland runtime creates a readonly file! */ + (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)chown(oldname,fileuid,filegid); + (void)PerlLIO_chown(PL_oldname,fileuid,filegid); #endif #endif } } - sv_free(sv); - return GvIO(gv)->ifp; + return IoIFP(GvIOp(gv)); } else - fprintf(stderr,"Can't open %s: %s\n",SvPVn(sv), strerror(errno)); - sv_free(sv); + PerlIO_printf(PerlIO_stderr(), "Can't open %s: %s\n", + SvPV(sv, oldlen), Strerror(errno)); } - if (inplace) { - (void)do_close(argvoutgv,FALSE); - defoutgv = gv_fetchpv("STDOUT",TRUE); + if (PL_inplace) { + (void)do_close(PL_argvoutgv,FALSE); + setdefout(gv_fetchpv("STDOUT",TRUE,SVt_PVIO)); } return Nullfp; } #ifdef HAS_PIPE void -do_pipe(sv, rgv, wgv) -SV *sv; -GV *rgv; -GV *wgv; +do_pipe(SV *sv, GV *rgv, GV *wgv) { register IO *rstio; register IO *wstio; @@ -486,94 +578,108 @@ GV *wgv; if (!wgv) goto badexit; - rstio = GvIO(rgv); - wstio = GvIO(wgv); + rstio = GvIOn(rgv); + wstio = GvIOn(wgv); - if (!rstio) - rstio = GvIO(rgv) = newIO(); - else if (rstio->ifp) + if (IoIFP(rstio)) do_close(rgv,FALSE); - if (!wstio) - wstio = GvIO(wgv) = newIO(); - else if (wstio->ifp) + if (IoIFP(wstio)) do_close(wgv,FALSE); - if (pipe(fd) < 0) + if (PerlProc_pipe(fd) < 0) goto badexit; - rstio->ifp = fdopen(fd[0], "r"); - wstio->ofp = fdopen(fd[1], "w"); - wstio->ifp = wstio->ofp; - rstio->type = '<'; - wstio->type = '>'; - if (!rstio->ifp || !wstio->ofp) { - if (rstio->ifp) fclose(rstio->ifp); - else close(fd[0]); - if (wstio->ofp) fclose(wstio->ofp); - else close(fd[1]); + IoIFP(rstio) = PerlIO_fdopen(fd[0], "r"); + IoOFP(wstio) = PerlIO_fdopen(fd[1], "w"); + IoIFP(wstio) = IoOFP(wstio); + IoTYPE(rstio) = '<'; + IoTYPE(wstio) = '>'; + 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,&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,explicit) -GV *gv; -bool explicit; +do_close(GV *gv, bool not_implicit) { - bool retval = FALSE; - register IO *io; - int status; + bool retval; + IO *io; if (!gv) - gv = argvgv; - if (!gv) { - errno = EBADF; + gv = PL_argvgv; + if (!gv || SvTYPE(gv) != SVt_PVGV) { + if (not_implicit) + SETERRNO(EBADF,SS$_IVCHAN); return FALSE; } io = GvIO(gv); if (!io) { /* never opened */ - if (dowarn && explicit) - warn("Close on unopened file <%s>",GvENAME(gv)); + if (not_implicit) { + dTHR; + if (ckWARN(WARN_UNOPENED)) + warner(WARN_UNOPENED, + "Close on unopened file <%s>",GvENAME(gv)); + SETERRNO(EBADF,SS$_IVCHAN); + } return FALSE; } - if (io->ifp) { - if (io->type == '|') { - status = my_pclose(io->ifp); - retval = (status == 0); - statusvalue = (unsigned short)status & 0xffff; + retval = io_close(io); + if (not_implicit) { + IoLINES(io) = 0; + IoPAGE(io) = 0; + IoLINES_LEFT(io) = IoPAGE_LEN(io); + } + IoTYPE(io) = ' '; + return retval; +} + +bool +io_close(IO *io) +{ + bool retval = FALSE; + int status; + + if (IoIFP(io)) { + if (IoTYPE(io) == '|') { + status = PerlProc_pclose(IoIFP(io)); + STATUS_NATIVE_SET(status); + retval = (STATUS_POSIX == 0); } - else if (io->type == '-') + else if (IoTYPE(io) == '-') retval = TRUE; else { - if (io->ofp && io->ofp != io->ifp) { /* a socket */ - retval = (fclose(io->ofp) != EOF); - fclose(io->ifp); /* clear stdio, fd already closed */ + if (IoOFP(io) && IoOFP(io) != IoIFP(io)) { /* a socket */ + retval = (PerlIO_close(IoOFP(io)) != EOF); + PerlIO_close(IoIFP(io)); /* clear stdio, fd already closed */ } else - retval = (fclose(io->ifp) != EOF); + retval = (PerlIO_close(IoIFP(io)) != EOF); } - io->ofp = io->ifp = Nullfp; + IoOFP(io) = IoIFP(io) = Nullfp; } - if (explicit) { - io->lines = 0; - io->page = 0; - io->lines_left = io->page_len; + else { + SETERRNO(EBADF,SS$_IVCHAN); } - io->type = ' '; + return retval; } bool -do_eof(gv) -GV *gv; +do_eof(GV *gv) { + dTHR; register IO *io; int ch; @@ -582,24 +688,24 @@ GV *gv; if (!io) return TRUE; - while (io->ifp) { + while (IoIFP(io)) { -#ifdef STDSTDIO /* (the code works without this) */ - if (io->ifp->_cnt > 0) /* cheat a little, since */ - return FALSE; /* this is the most usual case */ -#endif + if (PerlIO_has_cntptr(IoIFP(io))) { /* (the code works without this) */ + if (PerlIO_get_cnt(IoIFP(io)) > 0) /* cheat a little, since */ + return FALSE; /* this is the most usual case */ + } - ch = getc(io->ifp); + ch = PerlIO_getc(IoIFP(io)); if (ch != EOF) { - (void)ungetc(ch, io->ifp); + (void)PerlIO_ungetc(IoIFP(io),ch); return FALSE; } -#ifdef STDSTDIO - if (io->ifp->_cnt < -1) - io->ifp->_cnt = -1; -#endif - if (gv == argvgv) { /* not necessarily a real EOF yet? */ - if (!nextargv(argvgv)) /* get another fp handy */ + if (PerlIO_has_cntptr(IoIFP(io)) && PerlIO_canset_cnt(IoIFP(io))) { + if (PerlIO_get_cnt(IoIFP(io)) < -1) + PerlIO_set_cnt(IoIFP(io),-1); + } + if (PL_op->op_flags & OPf_SPECIAL) { /* not necessarily a real EOF yet? */ + if (!nextargv(PL_argvgv)) /* get another fp handy */ return TRUE; } else @@ -608,159 +714,131 @@ GV *gv; return TRUE; } -long -do_tell(gv) -GV *gv; +Off_t +do_tell(GV *gv) { register IO *io; + register PerlIO *fp; - if (!gv) - goto phooey; - - io = GvIO(gv); - if (!io || !io->ifp) - goto phooey; - + if (gv && (io = GvIO(gv)) && (fp = IoIFP(io))) { #ifdef ULTRIX_STDIO_BOTCH - if (feof(io->ifp)) - (void)fseek (io->ifp, 0L, 2); /* ultrix 1.2 workaround */ + if (PerlIO_eof(fp)) + (void)PerlIO_seek(fp, 0L, 2); /* ultrix 1.2 workaround */ #endif - - return ftell(io->ifp); - -phooey: - if (dowarn) - warn("tell() on unopened file"); - errno = EBADF; - return -1L; + return PerlIO_tell(fp); + } + { + dTHR; + if (ckWARN(WARN_UNOPENED)) + warner(WARN_UNOPENED, "tell() on unopened file"); + } + SETERRNO(EBADF,RMS$_IFI); + return (Off_t)-1; } bool -do_seek(gv, pos, whence) -GV *gv; -long pos; -int whence; +do_seek(GV *gv, Off_t pos, int whence) { register IO *io; + register PerlIO *fp; - if (!gv) - goto nuts; - - io = GvIO(gv); - if (!io || !io->ifp) - goto nuts; - + if (gv && (io = GvIO(gv)) && (fp = IoIFP(io))) { #ifdef ULTRIX_STDIO_BOTCH - if (feof(io->ifp)) - (void)fseek (io->ifp, 0L, 2); /* ultrix 1.2 workaround */ + if (PerlIO_eof(fp)) + (void)PerlIO_seek(fp, 0L, 2); /* ultrix 1.2 workaround */ #endif - - return fseek(io->ifp, pos, whence) >= 0; - -nuts: - if (dowarn) - warn("seek() on unopened file"); - errno = EBADF; + return PerlIO_seek(fp, pos, whence) >= 0; + } + { + dTHR; + if (ckWARN(WARN_UNOPENED)) + warner(WARN_UNOPENED, "seek() on unopened file"); + } + SETERRNO(EBADF,RMS$_IFI); return FALSE; } -I32 -do_ctl(optype,gv,func,argstr) -I32 optype; -GV *gv; -I32 func; -SV *argstr; +Off_t +do_sysseek(GV *gv, Off_t pos, int whence) { register IO *io; - register char *s; - I32 retval; + register PerlIO *fp; - if (!gv || !argstr || !(io = GvIO(gv)) || !io->ifp) { - errno = EBADF; /* well, sort of... */ - return -1; + if (gv && (io = GvIO(gv)) && (fp = IoIFP(io))) + return PerlLIO_lseek(PerlIO_fileno(fp), pos, whence); + { + dTHR; + if (ckWARN(WARN_UNOPENED)) + warner(WARN_UNOPENED, "sysseek() on unopened file"); } + SETERRNO(EBADF,RMS$_IFI); + return -1L; +} - if (SvPOK(argstr) || !SvNIOK(argstr)) { - if (!SvPOK(argstr)) - s = SvPVn(argstr); - -#ifdef IOCPARM_MASK -#ifndef IOCPARM_LEN -#define IOCPARM_LEN(x) (((x) >> 16) & IOCPARM_MASK) -#endif -#endif -#ifdef IOCPARM_LEN - retval = IOCPARM_LEN(func); /* on BSDish systes we're safe */ -#else - retval = 256; /* otherwise guess at what's safe */ -#endif - if (SvCUR(argstr) < retval) { - Sv_Grow(argstr,retval+1); - SvCUR_set(argstr, retval); - } - - s = SvPV(argstr); - s[SvCUR(argstr)] = 17; /* a little sanity check here */ - } - else { - retval = SvIVn(argstr); +int +do_binmode(PerlIO *fp, int iotype, int flag) +{ + if (flag != TRUE) + croak("panic: unsetting binmode"); /* Not implemented yet */ #ifdef DOSISH - s = (char*)(long)retval; /* ouch */ +#ifdef atarist + if (!PerlIO_flush(fp) && (fp->_flag |= _IOBIN)) + return 1; + else + return 0; #else - s = (char*)retval; /* ouch */ + 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; } - -#ifndef lint - if (optype == OP_IOCTL) - retval = ioctl(fileno(io->ifp), func, s); else -#ifdef DOSISH - fatal("fcntl is not implemented"); + return 0; +#endif #else -#ifdef HAS_FCNTL - retval = fcntl(fileno(io->ifp), func, s); +#if defined(USEMYBINMODE) + if (my_binmode(fp,iotype) != NULL) + return 1; + else + return 0; #else - fatal("fcntl is not implemented"); + return 1; #endif #endif -#else /* lint */ - retval = 0; -#endif /* lint */ - - if (SvPOK(argstr)) { - if (s[SvCUR(argstr)] != 17) - fatal("Return value overflowed string"); - s[SvCUR(argstr)] = 0; /* put our null back */ - } - return retval; } -#if !defined(HAS_TRUNCATE) && !defined(HAS_CHSIZE) && defined(FFt_FREESP) +#if !defined(HAS_TRUNCATE) && !defined(HAS_CHSIZE) && defined(F_FREESP) /* code courtesy of William Kucharski */ #define HAS_CHSIZE -I32 chsize(fd, length) +I32 my_chsize(fd, length) I32 fd; /* file descriptor */ -off_t length; /* length to set file to */ +Off_t length; /* length to set file to */ { - extern long lseek(); struct flock fl; struct stat filebuf; - if (fstat(fd, &filebuf) < 0) + if (PerlLIO_fstat(fd, &filebuf) < 0) return -1; if (filebuf.st_size < length) { /* extend file length */ - if ((lseek(fd, (length - 1), 0)) < 0) + if ((PerlLIO_lseek(fd, (length - 1), 0)) < 0) return -1; /* write a "0" byte */ - if ((write(fd, "", 1)) != 1) + if ((PerlLIO_write(fd, "", 1)) != 1) return -1; } else { @@ -769,240 +847,220 @@ off_t length; /* length to set file to */ fl.l_whence = 0; fl.l_len = 0; fl.l_start = length; - fl.l_type = FFt_WRLCK; /* write lock on file space */ + fl.l_type = F_WRLCK; /* write lock on file space */ /* - * This relies on the UNDOCUMENTED FFt_FREESP argument to + * 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, FFt_FREESP, &fl) < 0) + if (fcntl(fd, F_FREESP, &fl) < 0) return -1; } return 0; } -#endif /* FFt_FREESP */ - -I32 -looks_like_number(sv) -SV *sv; -{ - register char *s; - register char *send; - - if (!SvPOK(sv)) - return TRUE; - s = SvPV(sv); - send = s + SvCUR(sv); - while (isSPACE(*s)) - s++; - if (s >= send) - return FALSE; - if (*s == '+' || *s == '-') - s++; - while (isDIGIT(*s)) - s++; - if (s == send) - return TRUE; - if (*s == '.') - s++; - else if (s == SvPV(sv)) - return FALSE; - while (isDIGIT(*s)) - s++; - if (s == send) - return TRUE; - if (*s == 'e' || *s == 'E') { - s++; - if (*s == '+' || *s == '-') - s++; - while (isDIGIT(*s)) - s++; - } - while (isSPACE(*s)) - s++; - if (s >= send) - return TRUE; - return FALSE; -} +#endif /* F_FREESP */ bool -do_print(sv,fp) -register SV *sv; -FILE *fp; +do_print(register SV *sv, PerlIO *fp) { register char *tmps; - SV* tmpstr; + STRLEN len; /* assuming fp is checked earlier */ if (!sv) return TRUE; - if (ofmt) { - if (SvMAGICAL(sv)) + if (PL_ofmt) { + if (SvGMAGICAL(sv)) mg_get(sv); - if (SvIOK(sv) && SvIV(sv) != 0) { - fprintf(fp, ofmt, (double)SvIV(sv)); - return !ferror(fp); + if (SvIOK(sv) && SvIVX(sv) != 0) { + PerlIO_printf(fp, PL_ofmt, (double)SvIVX(sv)); + return !PerlIO_error(fp); } - if ( (SvNOK(sv) && SvNV(sv) != 0.0) + if ( (SvNOK(sv) && SvNVX(sv) != 0.0) || (looks_like_number(sv) && sv_2nv(sv) != 0.0) ) { - fprintf(fp, ofmt, SvNV(sv)); - return !ferror(fp); + PerlIO_printf(fp, PL_ofmt, SvNVX(sv)); + return !PerlIO_error(fp); } } switch (SvTYPE(sv)) { case SVt_NULL: + { + dTHR; + if (ckWARN(WARN_UNINITIALIZED)) + warner(WARN_UNINITIALIZED, PL_warn_uninit); + } return TRUE; - case SVt_REF: - fprintf(fp, "%s", sv_2pv(sv)); - return !ferror(fp); case SVt_IV: - if (SvMAGICAL(sv)) - mg_get(sv); - fprintf(fp, "%d", SvIV(sv)); - return !ferror(fp); + if (SvIOK(sv)) { + if (SvGMAGICAL(sv)) + mg_get(sv); + PerlIO_printf(fp, "%ld", (long)SvIVX(sv)); + return !PerlIO_error(fp); + } + /* FALL THROUGH */ default: - tmps = SvPVn(sv); + tmps = SvPV(sv, len); break; } - if (SvCUR(sv) && (fwrite(tmps,1,SvCUR(sv),fp) == 0 || ferror(fp))) + if (len && (PerlIO_write(fp,tmps,len) == 0 || PerlIO_error(fp))) return FALSE; - return TRUE; + return !PerlIO_error(fp); } I32 -my_stat(ARGS) -dARGS +my_stat(ARGSproto) { - dSP; + djSP; IO *io; - - if (op->op_flags & OPf_SPECIAL) { - EXTEND(sp,1); - io = GvIO(cGVOP->op_gv); - if (io && io->ifp) { - statgv = cGVOP->op_gv; - sv_setpv(statname,""); - laststype = OP_STAT; - return (laststatval = fstat(fileno(io->ifp), &statcache)); + GV* tmpgv; + + if (PL_op->op_flags & OPf_REF) { + EXTEND(SP,1); + tmpgv = cGVOP->op_gv; + do_fstat: + io = GvIO(tmpgv); + if (io && IoIFP(io)) { + PL_statgv = tmpgv; + sv_setpv(PL_statname,""); + PL_laststype = OP_STAT; + return (PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache)); } else { - if (cGVOP->op_gv == defgv) - return laststatval; - if (dowarn) - warn("Stat on unopened file <%s>", - GvENAME(cGVOP->op_gv)); - statgv = Nullgv; - sv_setpv(statname,""); - return (laststatval = -1); + if (tmpgv == PL_defgv) + return PL_laststatval; + if (ckWARN(WARN_UNOPENED)) + warner(WARN_UNOPENED, "Stat on unopened file <%s>", + GvENAME(tmpgv)); + PL_statgv = Nullgv; + sv_setpv(PL_statname,""); + return (PL_laststatval = -1); } } else { - dPOPss; + SV* sv = POPs; + char *s; + STRLEN n_a; PUTBACK; - statgv = Nullgv; - sv_setpv(statname,SvPVn(sv)); - laststype = OP_STAT; - laststatval = stat(SvPVn(sv),&statcache); - if (laststatval < 0 && dowarn && index(SvPVn(sv), '\n')) - warn(warn_nl, "stat"); - return laststatval; + if (SvTYPE(sv) == SVt_PVGV) { + tmpgv = (GV*)sv; + goto do_fstat; + } + else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) { + tmpgv = (GV*)SvRV(sv); + goto do_fstat; + } + + 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')) + warner(WARN_NEWLINE, PL_warn_nl, "stat"); + return PL_laststatval; } } I32 -my_lstat(ARGS) -dARGS +my_lstat(ARGSproto) { - dSP; + djSP; SV *sv; - if (op->op_flags & OPf_SPECIAL) { - EXTEND(sp,1); - if (cGVOP->op_gv == defgv) { - if (laststype != OP_LSTAT) - fatal("The stat preceding -l _ wasn't an lstat"); - return laststatval; + STRLEN n_a; + if (PL_op->op_flags & OPf_REF) { + EXTEND(SP,1); + if (cGVOP->op_gv == PL_defgv) { + if (PL_laststype != OP_LSTAT) + croak("The stat preceding -l _ wasn't an lstat"); + return PL_laststatval; } - fatal("You can't use -l on a filehandle"); + croak("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,SvPVn(sv)); + sv_setpv(PL_statname,SvPV(sv, n_a)); #ifdef HAS_LSTAT - laststatval = lstat(SvPVn(sv),&statcache); + PL_laststatval = PerlLIO_lstat(SvPV(sv, n_a),&PL_statcache); #else - laststatval = stat(SvPVn(sv),&statcache); + PL_laststatval = PerlLIO_stat(SvPV(sv, n_a),&PL_statcache); #endif - if (laststatval < 0 && dowarn && index(SvPVn(sv), '\n')) - warn(warn_nl, "lstat"); - return laststatval; + if (PL_laststatval < 0 && ckWARN(WARN_NEWLINE) && strchr(SvPV(sv, n_a), '\n')) + warner(WARN_NEWLINE, PL_warn_nl, "lstat"); + return PL_laststatval; } bool -do_aexec(really,mark,sp) -SV *really; -register SV **mark; -register SV **sp; +do_aexec(SV *really, register SV **mark, register SV **sp) { register char **a; char *tmps; + STRLEN n_a; if (sp > mark) { - New(401,Argv, sp - mark + 1, char*); - a = Argv; + dTHR; + New(401,PL_Argv, sp - mark + 1, char*); + a = PL_Argv; while (++mark <= sp) { if (*mark) - *a++ = SvPVnx(*mark); + *a++ = SvPVx(*mark, n_a); else *a++ = ""; } *a = Nullch; - if (*Argv[0] != '/') /* will execvp use PATH? */ + if (*PL_Argv[0] != '/') /* will execvp use PATH? */ TAINT_ENV(); /* testing IFS here is overkill, probably */ - if (really && *(tmps = SvPVn(really))) - execvp(tmps,Argv); + if (really && *(tmps = SvPV(really, n_a))) + PerlProc_execvp(tmps,PL_Argv); else - execvp(Argv[0],Argv); + PerlProc_execvp(PL_Argv[0],PL_Argv); + if (ckWARN(WARN_EXEC)) + warner(WARN_EXEC, "Can't exec \"%s\": %s", + PL_Argv[0], Strerror(errno)); } do_execfree(); return FALSE; } void -do_execfree() +do_execfree(void) { - 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) + bool -do_exec(cmd) -char *cmd; +do_exec(char *cmd) { register char **a; register char *s; char flags[10]; + while (*cmd && isSPACE(*cmd)) + 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"); @@ -1018,7 +1076,7 @@ char *cmd; *--s = '\0'; if (s[-1] == '\'') { *--s = '\0'; - execl(cshname,"csh", flags,ncmd,(char*)0); + PerlProc_execl(PL_cshname,"csh", flags,ncmd,(char*)0); *s = '\''; return FALSE; } @@ -1028,25 +1086,32 @@ char *cmd; /* see if there are shell metacharacters in it */ - /*SUPPRESS 530*/ + if (*cmd == '.' && isSPACE(cmd[1])) + goto doshell; + + if (strnEQ(cmd,"exec",4) && isSPACE(cmd[4])) + goto doshell; + for (s = cmd; *s && isALPHA(*s); s++) ; /* catch VAR=val gizmo */ if (*s == '=') goto doshell; + for (s = cmd; *s; s++) { - if (*s != ' ' && !isALPHA(*s) && index("$&*(){}[]'\";\\|?<>~`\n",*s)) { + if (*s != ' ' && !isALPHA(*s) && strchr("$&*(){}[]'\";\\|?<>~`\n",*s)) { if (*s == '\n' && !s[1]) { *s = '\0'; break; } doshell: - execl("/bin/sh","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 = nsavestr(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; @@ -1055,107 +1120,179 @@ char *cmd; *s++ = '\0'; } *a = Nullch; - if (Argv[0]) { - 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; } + { + dTHR; + if (ckWARN(WARN_EXEC)) + warner(WARN_EXEC, "Can't exec \"%s\": %s", + PL_Argv[0], Strerror(errno)); + } } do_execfree(); return FALSE; } +#endif /* OS2 || WIN32 */ + I32 -apply(type,mark,sp) -I32 type; -register SV **mark; -register SV **sp; +apply(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; -#ifdef TAINT - while (++mark <= sp) - TAINT_IF((*mark)->sv_tainted); - mark = oldmark; -#endif +#define APPLY_TAINT_PROPER() \ + STMT_START { \ + if (PL_tainting && PL_tainted) { goto taint_proper_label; } \ + } STMT_END + + /* This is a first heuristic; it doesn't catch tainting magic. */ + if (PL_tainting) { + while (++mark <= sp) { + if (SvTAINTED(*mark)) { + TAINT; + break; + } + } + mark = oldmark; + } switch (type) { case OP_CHMOD: - TAINT_PROPER("chmod"); + what = "chmod"; + APPLY_TAINT_PROPER(); if (++mark <= sp) { + val = SvIVx(*mark); + APPLY_TAINT_PROPER(); tot = sp - mark; - val = SvIVnx(*mark); while (++mark <= sp) { - if (chmod(SvPVnx(*mark),val)) + char *name = SvPVx(*mark, n_a); + APPLY_TAINT_PROPER(); + if (PerlLIO_chmod(name, val)) tot--; } } break; #ifdef HAS_CHOWN case OP_CHOWN: - TAINT_PROPER("chown"); + what = "chown"; + APPLY_TAINT_PROPER(); if (sp - mark > 2) { + val = SvIVx(*++mark); + val2 = SvIVx(*++mark); + APPLY_TAINT_PROPER(); tot = sp - mark; - val = SvIVnx(*++mark); - val2 = SvIVnx(*++mark); while (++mark <= sp) { - if (chown(SvPVnx(*mark),val,val2)) + char *name = SvPVx(*mark, n_a); + APPLY_TAINT_PROPER(); + if (PerlLIO_chown(name, val, val2)) tot--; } } 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: - TAINT_PROPER("kill"); - s = SvPVnx(*++mark); - tot = sp - mark; + what = "kill"; + APPLY_TAINT_PROPER(); + if (mark == sp) + break; + s = SvPVx(*++mark, n_a); if (isUPPER(*s)) { if (*s == 'S' && s[1] == 'I' && s[2] == 'G') s += 3; if (!(val = whichsig(s))) - fatal("Unrecognized signal name \"%s\"",s); + croak("Unrecognized signal name \"%s\"",s); } else - val = SvIVnx(*mark); + val = SvIVx(*mark); + APPLY_TAINT_PROPER(); + 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 if (val < 0) { val = -val; while (++mark <= sp) { - I32 proc = SvIVnx(*mark); + I32 proc = SvIVx(*mark); + APPLY_TAINT_PROPER(); #ifdef HAS_KILLPG - if (killpg(proc,val)) /* BSD */ + if (PerlProc_killpg(proc,val)) /* BSD */ #else - if (kill(-proc,val)) /* SYSV */ + if (PerlProc_kill(-proc,val)) /* SYSV */ #endif tot--; } } else { while (++mark <= sp) { - if (kill(SvIVnx(*mark),val)) + I32 proc = SvIVx(*mark); + APPLY_TAINT_PROPER(); + if (PerlProc_kill(proc, val)) tot--; } } break; #endif case OP_UNLINK: - TAINT_PROPER("unlink"); + what = "unlink"; + APPLY_TAINT_PROPER(); tot = sp - mark; while (++mark <= sp) { - s = SvPVnx(*mark); - if (euid || unsafe) { + s = SvPVx(*mark, n_a); + APPLY_TAINT_PROPER(); + if (PL_euid || PL_unsafe) { if (UNLINK(s)) tot--; } else { /* don't let root wipe out directories without -U */ #ifdef HAS_LSTAT - if (lstat(s,&statbuf) < 0 || S_ISDIR(statbuf.st_mode)) + if (PerlLIO_lstat(s,&PL_statbuf) < 0 || S_ISDIR(PL_statbuf.st_mode)) #else - if (stat(s,&statbuf) < 0 || S_ISDIR(statbuf.st_mode)) + if (PerlLIO_stat(s,&PL_statbuf) < 0 || S_ISDIR(PL_statbuf.st_mode)) #endif tot--; else { @@ -1165,10 +1302,12 @@ register SV **sp; } } break; +#ifdef HAS_UTIME case OP_UTIME: - TAINT_PROPER("utime"); + what = "utime"; + APPLY_TAINT_PROPER(); if (sp - mark > 2) { -#ifdef I_UTIME +#if defined(I_UTIME) || defined(VMS) struct utimbuf utbuf; #else struct { @@ -1178,28 +1317,40 @@ register SV **sp; #endif Zero(&utbuf, sizeof utbuf, char); - utbuf.actime = SvIVnx(*++mark); /* time accessed */ - utbuf.modtime = SvIVnx(*++mark); /* time modified */ +#ifdef BIG_TIME + 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 */ +#endif + APPLY_TAINT_PROPER(); tot = sp - mark; while (++mark <= sp) { - if (utime(SvPVnx(*mark),&utbuf)) + char *name = SvPVx(*mark, n_a); + APPLY_TAINT_PROPER(); + if (PerlLIO_utime(name, &utbuf)) tot--; } } else tot = 0; break; +#endif } 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(bit, effective, statbufp) -I32 bit; -I32 effective; -register struct stat *statbufp; +cando(I32 bit, I32 effective, register struct stat *statbufp) { #ifdef DOSISH /* [Comments and code from Len Reed] @@ -1225,8 +1376,8 @@ register struct stat *statbufp; */ return (bit & statbufp->st_mode) ? TRUE : FALSE; -#else /* ! MSDOS */ - if ((effective ? euid : uid) == 0) { /* root is special */ +#else /* ! DOSISH */ + if ((effective ? PL_euid : PL_uid) == 0) { /* root is special */ if (bit == S_IXUSR) { if (statbufp->st_mode & 0111 || S_ISDIR(statbufp->st_mode)) return TRUE; @@ -1235,7 +1386,7 @@ register struct stat *statbufp; return TRUE; /* root reads and writes anything */ return FALSE; } - if (statbufp->st_uid == (effective ? euid : uid) ) { + if (statbufp->st_uid == (effective ? PL_euid : PL_uid) ) { if (statbufp->st_mode & bit) return TRUE; /* ok as "user" */ } @@ -1246,22 +1397,21 @@ register struct stat *statbufp; else if (statbufp->st_mode & bit >> 6) return TRUE; /* ok as "other" */ return FALSE; -#endif /* ! MSDOS */ +#endif /* ! DOSISH */ } +#endif /* ! VMS */ I32 -ingroup(testgid,effective) -I32 testgid; -I32 effective; +ingroup(I32 testgid, I32 effective) { - if (testgid == (effective ? egid : gid)) + if (testgid == (effective ? PL_egid : PL_gid)) return TRUE; #ifdef HAS_GETGROUPS #ifndef NGROUPS #define NGROUPS 32 #endif { - GROUPSTYPE gary[NGROUPS]; + Groups_t gary[NGROUPS]; I32 anum; anum = getgroups(NGROUPS,gary); @@ -1276,18 +1426,16 @@ I32 effective; #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM) I32 -do_ipcget(optype, mark, sp) -I32 optype; -SV **mark; -SV **sp; +do_ipcget(I32 optype, SV **mark, SV **sp) { + dTHR; key_t key; I32 n, flags; - key = (key_t)SvNVnx(*++mark); - n = (optype == OP_MSGGET) ? 0 : SvIVnx(*++mark); - flags = SvIVnx(*++mark); - errno = 0; + key = (key_t)SvNVx(*++mark); + n = (optype == OP_MSGGET) ? 0 : SvIVx(*++mark); + flags = SvIVx(*++mark); + SETERRNO(0,0); switch (optype) { #ifdef HAS_MSG @@ -1304,25 +1452,24 @@ SV **sp; #endif #if !defined(HAS_MSG) || !defined(HAS_SEM) || !defined(HAS_SHM) default: - fatal("%s not implemented", op_name[optype]); + croak("%s not implemented", PL_op_desc[optype]); #endif } return -1; /* should never happen */ } I32 -do_ipcctl(optype, mark, sp) -I32 optype; -SV **mark; -SV **sp; +do_ipcctl(I32 optype, SV **mark, SV **sp) { + dTHR; SV *astr; char *a; - I32 id, n, cmd, infosize, getinfo, ret; + I32 id, n, cmd, infosize, getinfo; + I32 ret = -1; - id = SvIVnx(*++mark); - n = (optype == OP_SEMCTL) ? SvIVnx(*++mark) : 0; - cmd = SvIVnx(*++mark); + id = SvIVx(*++mark); + n = (optype == OP_SEMCTL) ? SvIVx(*++mark) : 0; + cmd = SvIVx(*++mark); astr = *++mark; infosize = 0; getinfo = (cmd == IPC_STAT); @@ -1348,9 +1495,12 @@ SV **sp; else if (cmd == GETALL || cmd == SETALL) { struct semid_ds semds; - if (semctl(id, 0, IPC_STAT, &semds) == -1) - return -1; + union semun semun; + + semun.buf = &semds; getinfo = (cmd == GETALL); + if (Semctl(id, 0, IPC_STAT, semun) == -1) + return -1; infosize = semds.sem_nsems * sizeof(short); /* "short" is technically wrong but much more portable than guessing about u_?short(_t)? */ @@ -1359,33 +1509,34 @@ SV **sp; #endif #if !defined(HAS_MSG) || !defined(HAS_SEM) || !defined(HAS_SHM) default: - fatal("%s not implemented", op_name[optype]); + croak("%s not implemented", PL_op_desc[optype]); #endif } if (infosize) { + STRLEN len; if (getinfo) { - SvGROW(astr, infosize+1); - a = SvPVn(astr); + SvPV_force(astr, len); + a = SvGROW(astr, infosize+1); } else { - a = SvPVn(astr); - if (SvCUR(astr) != infosize) - { - errno = EINVAL; - return -1; - } + a = SvPV(astr, len); + if (len != infosize) + croak("Bad arg length for %s, is %lu, should be %ld", + PL_op_desc[optype], + (unsigned long)len, + (long)infosize); } } else { - I32 i = SvIVn(astr); + IV i = SvIV(astr); a = (char *)i; /* ouch */ } - errno = 0; + SETERRNO(0,0); switch (optype) { #ifdef HAS_MSG @@ -1394,8 +1545,12 @@ SV **sp; break; #endif #ifdef HAS_SEM - case OP_SEMCTL: - ret = semctl(id, n, cmd, (struct semid_ds *)a); + case OP_SEMCTL: { + union semun unsemds; + + unsemds.buf = (struct semid_ds *)a; + ret = Semctl(id, n, cmd, unsemds); + } break; #endif #ifdef HAS_SHM @@ -1407,57 +1562,60 @@ SV **sp; if (getinfo && ret >= 0) { SvCUR_set(astr, infosize); *SvEND(astr) = '\0'; + SvSETMAGIC(astr); } return ret; } I32 -do_msgsnd(mark, sp) -SV **mark; -SV **sp; +do_msgsnd(SV **mark, SV **sp) { #ifdef HAS_MSG + dTHR; SV *mstr; char *mbuf; I32 id, msize, flags; + STRLEN len; - id = SvIVnx(*++mark); + id = SvIVx(*++mark); mstr = *++mark; - flags = SvIVnx(*++mark); - mbuf = SvPVn(mstr); - if ((msize = SvCUR(mstr) - sizeof(long)) < 0) { - errno = EINVAL; - return -1; - } - errno = 0; + flags = SvIVx(*++mark); + mbuf = SvPV(mstr, len); + if ((msize = len - sizeof(long)) < 0) + croak("Arg too short for msgsnd"); + SETERRNO(0,0); return msgsnd(id, (struct msgbuf *)mbuf, msize, flags); #else - fatal("msgsnd not implemented"); + croak("msgsnd not implemented"); #endif } I32 -do_msgrcv(mark, sp) -SV **mark; -SV **sp; +do_msgrcv(SV **mark, SV **sp) { #ifdef HAS_MSG + dTHR; SV *mstr; char *mbuf; long mtype; I32 id, msize, flags, ret; + STRLEN len; - id = SvIVnx(*++mark); + id = SvIVx(*++mark); mstr = *++mark; - msize = SvIVnx(*++mark); - mtype = (long)SvIVnx(*++mark); - flags = SvIVnx(*++mark); - mbuf = SvPVn(mstr); - if (SvCUR(mstr) < sizeof(long)+msize+1) { - SvGROW(mstr, sizeof(long)+msize+1); - mbuf = SvPVn(mstr); + 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); } - errno = 0; + 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); @@ -1465,79 +1623,74 @@ SV **sp; } return ret; #else - fatal("msgrcv not implemented"); + croak("msgrcv not implemented"); #endif } I32 -do_semop(mark, sp) -SV **mark; -SV **sp; +do_semop(SV **mark, SV **sp) { #ifdef HAS_SEM + dTHR; SV *opstr; char *opbuf; - I32 id, opsize; + I32 id; + STRLEN opsize; - id = SvIVnx(*++mark); + id = SvIVx(*++mark); opstr = *++mark; - opbuf = SvPVn(opstr); - opsize = SvCUR(opstr); + opbuf = SvPV(opstr, opsize); if (opsize < sizeof(struct sembuf) || (opsize % sizeof(struct sembuf)) != 0) { - errno = EINVAL; + SETERRNO(EINVAL,LIB$_INVARG); return -1; } - errno = 0; + SETERRNO(0,0); return semop(id, (struct sembuf *)opbuf, opsize/sizeof(struct sembuf)); #else - fatal("semop not implemented"); + croak("semop not implemented"); #endif } I32 -do_shmio(optype, mark, sp) -I32 optype; -SV **mark; -SV **sp; +do_shmio(I32 optype, SV **mark, SV **sp) { #ifdef HAS_SHM + dTHR; SV *mstr; char *mbuf, *shm; I32 id, mpos, msize; + STRLEN len; struct shmid_ds shmds; -#ifndef VOIDSHMAT - extern char *shmat(); -#endif - id = SvIVnx(*++mark); + id = SvIVx(*++mark); mstr = *++mark; - mpos = SvIVnx(*++mark); - msize = SvIVnx(*++mark); - errno = 0; + mpos = SvIVx(*++mark); + msize = SvIVx(*++mark); + SETERRNO(0,0); if (shmctl(id, IPC_STAT, &shmds) == -1) return -1; if (mpos < 0 || msize < 0 || mpos + msize > shmds.shm_segsz) { - errno = EFAULT; /* can't do as caller requested */ + SETERRNO(EFAULT,SS$_ACCVIO); /* can't do as caller requested */ return -1; } - shm = (char*)shmat(id, (char*)NULL, (optype == OP_SHMREAD) ? SHM_RDONLY : 0); + shm = (char *)shmat(id, (char*)NULL, (optype == OP_SHMREAD) ? SHM_RDONLY : 0); if (shm == (char *)-1) /* I hate System V IPC, I really do */ return -1; - mbuf = SvPVn(mstr); if (optype == OP_SHMREAD) { - if (SvCUR(mstr) < msize) { - SvGROW(mstr, msize+1); - mbuf = SvPVn(mstr); - } + SvPV_force(mstr, len); + mbuf = SvGROW(mstr, msize+1); + Copy(shm + mpos, mbuf, msize, char); SvCUR_set(mstr, msize); *SvEND(mstr) = '\0'; + SvSETMAGIC(mstr); } else { I32 n; - if ((n = SvCUR(mstr)) > msize) + mbuf = SvPV(mstr, len); + if ((n = len) > msize) n = msize; Copy(mbuf, shm + mpos, n, char); if (n < msize) @@ -1545,8 +1698,9 @@ SV **sp; } return shmdt(shm); #else - fatal("shm I/O not implemented"); + croak("shm I/O not implemented"); #endif } #endif /* SYSV IPC */ +