/* doio.c
*
* Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
- * 2000, 2001, 2002, 2003, 2004, by Larry Wall and others
+ * 2000, 2001, 2002, 2003, 2004, 2005, by Larry Wall and others
*
* You may distribute under the terms of either the GNU General Public
* License or the Artistic License, as specified in the README file.
* chattering, into calmer and more level reaches."
*/
+/* This file contains functions that do the actual I/O on behalf of ops.
+ * For example, pp_print() calls the do_print() function in this file for
+ * each argument needing printing.
+ */
+
#include "EXTERN.h"
#define PERL_IN_DOIO_C
#include "perl.h"
# define OPEN_EXCL 0
#endif
-#include <signal.h>
-
-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);
-}
+#define PERL_MODE_MAX 8
+#define PERL_FLAGS_MAX 10
-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);
-}
+#include <signal.h>
bool
-Perl_do_openn(pTHX_ GV *gv, register char *name, I32 len, int as_raw,
+Perl_do_openn(pTHX_ GV *gv, register const char *oname, I32 len, int as_raw,
int rawmode, int rawperm, PerlIO *supplied_fp, SV **svp,
I32 num_svs)
{
- register IO *io = GvIOn(gv);
+ dVAR;
+ register IO * const io = GvIOn(gv);
PerlIO *saveifp = Nullfp;
PerlIO *saveofp = Nullfp;
int savefd = -1;
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.) */
+ char mode[PERL_MODE_MAX]; /* stdio file mode ("r\0", "rb\0", "r+b\0" etc.) */
SV *namesv;
Zero(mode,sizeof(mode),char);
/* Collect default raw/crlf info from the op */
if (PL_op && PL_op->op_type == OP_OPEN) {
/* set up IO layers */
- U8 flags = PL_op->op_private;
+ const U8 flags = PL_op->op_private;
in_raw = (flags & OPpOPEN_IN_RAW);
in_crlf = (flags & OPpOPEN_IN_CRLF);
out_raw = (flags & OPpOPEN_OUT_RAW);
if (as_raw) {
/* sysopen style args, i.e. integer mode and permissions */
STRLEN ix = 0;
- int appendtrunc =
+ const int appendtrunc =
0
#ifdef O_APPEND /* Not fully portable. */
|O_APPEND
|O_TRUNC
#endif
;
- int modifyingmode =
- O_WRONLY|O_RDWR|O_CREAT|appendtrunc;
+ const int modifyingmode = O_WRONLY|O_RDWR|O_CREAT|appendtrunc;
int ismodifying;
if (num_svs != 0) {
IoTYPE(io) = PerlIO_intmode2str(rawmode, &mode[ix], &writing);
- namesv = sv_2mortal(newSVpvn(name,strlen(name)));
+ namesv = sv_2mortal(newSVpvn(oname,strlen(oname)));
num_svs = 1;
svp = &namesv;
type = Nullch;
}
else {
/* Regular (non-sys) open */
- char *oname = name;
+ char *name;
STRLEN olen = len;
char *tend;
int dodup = 0;
PerlIO *that_fp = NULL;
- type = savepvn(name, len);
+ type = savepvn(oname, len);
tend = type+len;
SAVEFREEPV(type);
/* Lose leading and trailing white space */
- /*SUPPRESS 530*/
for (; isSPACE(*type); type++) ;
while (tend > type && isSPACE(tend[-1]))
*--tend = '\0';
if (num_svs) {
/* New style explicit name, type is just mode and layer info */
- STRLEN l = 0;
#ifdef USE_STDIO
- if (SvROK(*svp) && !strchr(name,'&')) {
+ if (SvROK(*svp) && !strchr(oname,'&')) {
if (ckWARN(WARN_IO))
Perl_warner(aTHX_ packWARN(WARN_IO),
"Can't open a reference");
goto say_false;
}
#endif /* USE_STDIO */
- name = SvOK(*svp) ? SvPV(*svp, l) : "";
- len = (I32)l;
- name = savepvn(name, len);
+ name = SvOK(*svp) ? savesvpv (*svp) : savepvn ("", 0);
SAVEFREEPV(name);
}
else {
}
type++;
}
- /*SUPPRESS 530*/
for (type++; isSPACE(*type); type++) ;
if (!num_svs) {
name = type;
errno = EPIPE;
goto say_false;
}
- if (strNE(name,"-") || num_svs)
+ if ((*name == '-' && name[1] == '\0') || num_svs)
TAINT_ENV();
TAINT_PROPER("piped open");
if (!num_svs && name[len-1] == '|') {
}
mode[0] = 'w';
writing = 1;
+#ifdef HAS_STRLCAT
+ if (out_raw)
+ strlcat(mode, "b", PERL_MODE_MAX);
+ else if (out_crlf)
+ strlcat(mode, "t", PERL_MODE_MAX);
+#else
if (out_raw)
strcat(mode, "b");
else if (out_crlf)
strcat(mode, "t");
+#endif
if (num_svs > 1) {
fp = PerlProc_popen_list(mode, num_svs, svp);
}
}
writing = 1;
+#ifdef HAS_STRLCAT
+ if (out_raw)
+ strlcat(mode, "b", PERL_MODE_MAX);
+ else if (out_crlf)
+ strlcat(mode, "t", PERL_MODE_MAX);
+#else
if (out_raw)
strcat(mode, "b");
else if (out_crlf)
strcat(mode, "t");
-
+#endif
if (*type == '&') {
duplicity:
dodup = PERLIO_DUP_FD;
if (num_svs > 1) {
Perl_croak(aTHX_ "More than one argument to '%c&' open",IoTYPE(io));
}
- /*SUPPRESS 530*/
for (; isSPACE(*type); type++) ;
if (num_svs && (SvIOK(*svp) || (SvPOK(*svp) && looks_like_number(*svp)))) {
fd = SvUV(*svp);
fd = atoi(type);
}
else {
- IO* thatio;
+ const IO* thatio;
if (num_svs) {
thatio = sv_2io(*svp);
}
else
was_fdopen = TRUE;
if (!(fp = PerlIO_openn(aTHX_ type,mode,fd,0,0,NULL,num_svs,svp))) {
- if (dodup)
+ if (dodup && fd >= 0)
PerlLIO_close(fd);
}
}
}
} /* & */
else {
- /*SUPPRESS 530*/
for (; isSPACE(*type); type++) ;
if (*type == IoTYPE_STD && (!type[1] || isSPACE(type[1]) || type[1] == ':')) {
- /*SUPPRESS 530*/
type++;
fp = PerlIO_stdout();
IoTYPE(io) = IoTYPE_STD;
goto unknown_open_mode;
} /* IoTYPE_WRONLY */
else if (*type == IoTYPE_RDONLY) {
- /*SUPPRESS 530*/
for (type++; isSPACE(*type); type++) ;
mode[0] = 'r';
+#ifdef HAS_STRLCAT
+ if (in_raw)
+ strlcat(mode, "b", PERL_MODE_MAX);
+ else if (in_crlf)
+ strlcat(mode, "t", PERL_MODE_MAX);
+#else
if (in_raw)
strcat(mode, "b");
else if (in_crlf)
strcat(mode, "t");
-
+#endif
if (*type == '&') {
goto duplicity;
}
if (*type == IoTYPE_STD && (!type[1] || isSPACE(type[1]) || type[1] == ':')) {
- /*SUPPRESS 530*/
type++;
fp = PerlIO_stdin();
IoTYPE(io) = IoTYPE_STD;
*--tend = '\0';
while (tend > type && isSPACE(tend[-1]))
*--tend = '\0';
- /*SUPPRESS 530*/
- for (; isSPACE(*type); type++) ;
+ for (; isSPACE(*type); type++)
+ ;
name = type;
len = tend-type;
}
errno = EPIPE;
goto say_false;
}
- if (strNE(name,"-") || num_svs)
+ if (!(*name == '-' && name[1] == '\0') || num_svs)
TAINT_ENV();
TAINT_PROPER("piped open");
mode[0] = 'r';
+
+#ifdef HAS_STRLCAT
+ if (in_raw)
+ strlcat(mode, "b", PERL_MODE_MAX);
+ else if (in_crlf)
+ strlcat(mode, "t", PERL_MODE_MAX);
+#else
if (in_raw)
strcat(mode, "b");
else if (in_crlf)
strcat(mode, "t");
+#endif
+
if (num_svs > 1) {
fp = PerlProc_popen_list(mode,num_svs,svp);
}
goto unknown_open_mode;
name = type;
IoTYPE(io) = IoTYPE_RDONLY;
- /*SUPPRESS 530*/
- for (; isSPACE(*name); name++) ;
+ for (; isSPACE(*name); name++)
+ ;
mode[0] = 'r';
+
+#ifdef HAS_STRLCAT
+ if (in_raw)
+ strlcat(mode, "b", PERL_MODE_MAX);
+ else if (in_crlf)
+ strlcat(mode, "t", PERL_MODE_MAX);
+#else
if (in_raw)
strcat(mode, "b");
else if (in_crlf)
strcat(mode, "t");
- if (strEQ(name,"-")) {
+#endif
+
+ if (*name == '-' && name[1] == '\0') {
fp = PerlIO_stdin();
IoTYPE(io) = IoTYPE_STD;
}
}
}
if (!fp) {
- if (ckWARN(WARN_NEWLINE) && IoTYPE(io) == IoTYPE_RDONLY && strchr(name, '\n'))
+ if (IoTYPE(io) == IoTYPE_RDONLY && ckWARN(WARN_NEWLINE)
+ && strchr(oname, '\n')
+
+ )
Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "open");
goto say_false;
}
LOCK_FDPID_MUTEX;
sv = *av_fetch(PL_fdpid,fd,TRUE);
- (void)SvUPGRADE(sv, SVt_IV);
+ SvUPGRADE(sv, SVt_IV);
pid = SvIVX(sv);
- SvIVX(sv) = 0;
+ SvIV_set(sv, 0);
sv = *av_fetch(PL_fdpid,savefd,TRUE);
- (void)SvUPGRADE(sv, SVt_IV);
- SvIVX(sv) = pid;
+ SvUPGRADE(sv, SVt_IV);
+ SvIV_set(sv, pid);
UNLOCK_FDPID_MUTEX;
}
#endif
#endif
Uid_t fileuid;
Gid_t filegid;
- IO *io = GvIOp(gv);
+ IO * const io = GvIOp(gv);
if (!PL_argvoutgv)
PL_argvoutgv = gv_fetchpv("ARGVOUT",TRUE,SVt_PVIO);
STRLEN oldlen;
sv = av_shift(GvAV(gv));
SAVEFREESV(sv);
- sv_setsv(GvSV(gv),sv);
+ sv_setsv(GvSVn(gv),sv);
SvSETMAGIC(GvSV(gv));
PL_oldname = SvPVx(GvSV(gv), oldlen);
if (do_open(gv,PL_oldname,oldlen,PL_inplace!=0,O_RDONLY,0,Nullfp)) {
continue;
}
if (*PL_inplace) {
- char *star = strchr(PL_inplace, '*');
+ const char *star = strchr(PL_inplace, '*');
if (star) {
- char *begin = PL_inplace;
+ const char *begin = PL_inplace;
sv_setpvn(sv, "", 0);
do {
sv_catpvn(sv, begin, star - begin);
sv_catpv(sv,PL_inplace);
}
#ifndef FLEXFILENAMES
- if ((PerlLIO_stat(SvPVX(sv),&PL_statbuf) >= 0
+ if ((PerlLIO_stat(SvPVX_const(sv),&PL_statbuf) >= 0
&& PL_statbuf.st_dev == filedev
&& PL_statbuf.st_ino == fileino)
#ifdef DJGPP
#endif
#ifdef HAS_RENAME
#if !defined(DOSISH) && !defined(__CYGWIN__) && !defined(EPOC)
- if (PerlLIO_rename(PL_oldname,SvPVX(sv)) < 0) {
+ if (PerlLIO_rename(PL_oldname,SvPVX_const(sv)) < 0) {
if (ckWARN_d(WARN_INPLACE))
Perl_warner(aTHX_ packWARN(WARN_INPLACE),
"Can't rename %s to %"SVf": %s, skipping file",
}
#else
do_close(gv,FALSE);
- (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);
+ (void)PerlLIO_unlink(SvPVX_const(sv));
+ (void)PerlLIO_rename(PL_oldname,SvPVX_const(sv));
+ do_open(gv,(char*)SvPVX_const(sv),SvCUR(sv),PL_inplace!=0,
+ O_RDONLY,0,Nullfp);
#endif /* DOSISH */
#else
- (void)UNLINK(SvPVX(sv));
- if (link(PL_oldname,SvPVX(sv)) < 0) {
+ (void)UNLINK(SvPVX_const(sv));
+ if (link(PL_oldname,SvPVX_const(sv)) < 0) {
if (ckWARN_d(WARN_INPLACE))
Perl_warner(aTHX_ packWARN(WARN_INPLACE),
"Can't rename %s to %"SVf": %s, skipping file",
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))
+ if (!do_open(PL_argvoutgv,(char*)SvPVX_const(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))
+ if (!do_open(PL_argvoutgv,(char*)SvPVX_const(sv),SvCUR(sv),
+ PL_inplace!=0,O_WRONLY|O_CREAT|OPEN_EXCL,0666,
+ Nullfp))
#endif
{
if (ckWARN_d(WARN_INPLACE))
}
else {
if (ckWARN_d(WARN_INPLACE)) {
- int eno = errno;
+ const int eno = errno;
if (PerlLIO_stat(PL_oldname, &PL_statbuf) >= 0
&& !S_ISREG(PL_statbuf.st_mode))
{
return Nullfp;
}
-#ifdef HAS_PIPE
-void
-Perl_do_pipe(pTHX_ SV *sv, GV *rgv, GV *wgv)
-{
- register IO *rstio;
- register IO *wstio;
- int fd[2];
-
- if (!rgv)
- goto badexit;
- if (!wgv)
- goto badexit;
-
- rstio = GvIOn(rgv);
- wstio = GvIOn(wgv);
-
- if (IoIFP(rstio))
- do_close(rgv,FALSE);
- if (IoIFP(wstio))
- do_close(wgv,FALSE);
-
- if (PerlProc_pipe(fd) < 0)
- goto badexit;
- IoIFP(rstio) = PerlIO_fdopen(fd[0], "r"PIPE_OPEN_MODE);
- IoOFP(wstio) = PerlIO_fdopen(fd[1], "w"PIPE_OPEN_MODE);
- IoOFP(rstio) = IoIFP(rstio);
- IoIFP(wstio) = IoOFP(wstio);
- IoTYPE(rstio) = IoTYPE_RDONLY;
- IoTYPE(wstio) = IoTYPE_WRONLY;
- if (!IoIFP(rstio) || !IoOFP(wstio)) {
- if (IoIFP(rstio)) PerlIO_close(IoIFP(rstio));
- else PerlLIO_close(fd[0]);
- if (IoOFP(wstio)) PerlIO_close(IoOFP(wstio));
- else PerlLIO_close(fd[1]);
- goto badexit;
- }
-
- sv_setsv(sv,&PL_sv_yes);
- return;
-
-badexit:
- sv_setsv(sv,&PL_sv_undef);
- return;
-}
-#endif
-
/* explicit renamed to avoid C++ conflict -- kja */
bool
Perl_do_close(pTHX_ GV *gv, bool not_implicit)
Perl_io_close(pTHX_ IO *io, bool not_implicit)
{
bool retval = FALSE;
- int status;
if (IoIFP(io)) {
if (IoTYPE(io) == IoTYPE_PIPE) {
- status = PerlProc_pclose(IoIFP(io));
+ const int status = PerlProc_pclose(IoIFP(io));
if (not_implicit) {
- STATUS_NATIVE_SET(status);
- retval = (STATUS_POSIX == 0);
+ STATUS_NATIVE_CHILD_SET(status);
+ retval = (STATUS_UNIX == 0);
}
else {
retval = (status != -1);
retval = TRUE;
else {
if (IoOFP(io) && IoOFP(io) != IoIFP(io)) { /* a socket */
- retval = (PerlIO_close(IoOFP(io)) != EOF);
+ bool prev_err = PerlIO_error(IoOFP(io));
+ retval = (PerlIO_close(IoOFP(io)) != EOF && !prev_err);
PerlIO_close(IoIFP(io)); /* clear stdio, fd already closed */
}
- else
- retval = (PerlIO_close(IoIFP(io)) != EOF);
+ else {
+ bool prev_err = PerlIO_error(IoIFP(io));
+ retval = (PerlIO_close(IoIFP(io)) != EOF && !prev_err);
+ }
}
IoOFP(io) = IoIFP(io) = Nullfp;
}
if (!io)
return TRUE;
- else if (ckWARN(WARN_IO) && (IoTYPE(io) == IoTYPE_WRONLY))
+ else if ((IoTYPE(io) == IoTYPE_WRONLY) && ckWARN(WARN_IO))
report_evil_fh(gv, io, OP_phoney_OUTPUT_ONLY);
while (IoIFP(io)) {
int mode = O_BINARY;
if (discp) {
STRLEN len;
- char *s = SvPV(discp,len);
+ const char *s = SvPV_const(discp,len);
while (*s) {
if (*s == ':') {
switch (s[1]) {
case 'r':
- if (len > 3 && strnEQ(s+1, "raw", 3)
+ if (s[2] == 'a' && s[3] == 'w'
&& (!s[4] || s[4] == ':' || isSPACE(s[4])))
{
mode = O_BINARY;
}
/* FALL THROUGH */
case 'c':
- if (len > 4 && strnEQ(s+1, "crlf", 4)
+ if (s[2] == 'r' && s[3] == 'l' && s[4] == 'f'
&& (!s[5] || s[5] == ':' || isSPACE(s[5])))
{
mode = O_TEXT;
--len;
}
else {
- char *end;
+ const char *end;
fail_discipline:
end = strchr(s+1, ':');
if (!end)
return mode;
}
-int
-Perl_do_binmode(pTHX_ PerlIO *fp, int iotype, int mode)
+#if !defined(HAS_TRUNCATE) && !defined(HAS_CHSIZE)
+I32
+my_chsize(int fd, Off_t length)
{
- /* 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 = ":raw";
-#ifdef PERLIO_USING_CRLF
- if (!(mode & O_BINARY))
- name = ":crlf";
-#endif
- return PerlIO_binmode(aTHX_ fp, iotype, mode, name);
-}
-
-#if !defined(HAS_TRUNCATE) && !defined(HAS_CHSIZE) && defined(F_FREESP)
+#ifdef F_FREESP
/* code courtesy of William Kucharski */
#define HAS_CHSIZE
-I32 my_chsize(fd, length)
-I32 fd; /* file descriptor */
-Off_t length; /* length to set file to */
-{
struct flock fl;
Stat_t filebuf;
return -1;
}
-
return 0;
-}
+#else
+ Perl_croak_nocontext("truncate not implemented");
#endif /* F_FREESP */
+ return -1;
+}
+#endif /* !HAS_TRUNCATE && !HAS_CHSIZE */
bool
Perl_do_print(pTHX_ register SV *sv, PerlIO *fp)
{
- register char *tmps;
+ register const char *tmps;
STRLEN len;
/* assuming fp is checked earlier */
if (!sv)
return TRUE;
- if (PL_ofmt) {
- if (SvGMAGICAL(sv))
- mg_get(sv);
- if (SvIOK(sv) && SvIVX(sv) != 0) {
- 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, PL_ofmt, SvNVX(sv));
- return !PerlIO_error(fp);
- }
- }
switch (SvTYPE(sv)) {
case SVt_NULL:
if (ckWARN(WARN_UNINITIALIZED))
return TRUE;
case SVt_IV:
if (SvIOK(sv)) {
- if (SvGMAGICAL(sv))
- mg_get(sv);
+ SvGETMAGIC(sv);
if (SvIsUV(sv))
PerlIO_printf(fp, "%"UVuf, (UV)SvUVX(sv));
else
Perl_warner(aTHX_ packWARN(WARN_UTF8), "Wide character in print");
}
}
- tmps = SvPV(sv, len);
+ tmps = SvPV_const(sv, len);
break;
}
/* To detect whether the process is about to overstep its
io = GvIO(gv);
if (io && IoIFP(io)) {
PL_statgv = gv;
- sv_setpv(PL_statname,"");
+ sv_setpvn(PL_statname,"", 0);
PL_laststype = OP_STAT;
return (PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache));
}
if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
report_evil_fh(gv, io, PL_op->op_type);
PL_statgv = Nullgv;
- sv_setpv(PL_statname,"");
+ sv_setpvn(PL_statname,"", 0);
return (PL_laststatval = -1);
}
}
}
else {
SV* sv = POPs;
- char *s;
+ const char *s;
STRLEN len;
PUTBACK;
if (SvTYPE(sv) == SVt_PVGV) {
goto do_fstat;
}
- s = SvPV(sv, len);
+ s = SvPV_const(sv, len);
PL_statgv = Nullgv;
sv_setpvn(PL_statname, s, len);
- s = SvPVX(PL_statname); /* s now NUL-terminated */
+ s = SvPVX_const(PL_statname); /* s now NUL-terminated */
PL_laststype = OP_STAT;
PL_laststatval = PerlLIO_stat(s, &PL_statcache);
if (PL_laststatval < 0 && ckWARN(WARN_NEWLINE) && strchr(s, '\n'))
}
}
-static char no_prev_lstat[] = "The stat preceding -l _ wasn't an lstat";
+static const char no_prev_lstat[] = "The stat preceding -l _ wasn't an lstat";
I32
Perl_my_lstat(pTHX)
{
dSP;
SV *sv;
- STRLEN n_a;
if (PL_op->op_flags & OPf_REF) {
EXTEND(SP,1);
if (cGVOP_gv == PL_defgv) {
return (PL_laststatval = -1);
}
}
- else if (ckWARN(WARN_IO) && PL_laststype != OP_LSTAT
- && (PL_op->op_private & OPpFT_STACKED))
+ else if (PL_laststype != OP_LSTAT
+ && (PL_op->op_private & OPpFT_STACKED) && ckWARN(WARN_IO))
Perl_croak(aTHX_ no_prev_lstat);
PL_laststype = OP_LSTAT;
GvENAME((GV*) SvRV(sv)));
return (PL_laststatval = -1);
}
- sv_setpv(PL_statname,SvPV(sv, n_a));
- PL_laststatval = PerlLIO_lstat(SvPV(sv, n_a),&PL_statcache);
- if (PL_laststatval < 0 && ckWARN(WARN_NEWLINE) && strchr(SvPV(sv, n_a), '\n'))
+ /* XXX Do really need to be calling SvPV() all these times? */
+ sv_setpv(PL_statname,SvPV_nolen_const(sv));
+ PL_laststatval = PerlLIO_lstat(SvPV_nolen_const(sv),&PL_statcache);
+ if (PL_laststatval < 0 && ckWARN(WARN_NEWLINE) && strchr(SvPV_nolen_const(sv), '\n'))
Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "lstat");
return PL_laststatval;
}
-#ifndef OS2
-bool
-Perl_do_aexec(pTHX_ SV *really, register SV **mark, register SV **sp)
-{
- return do_aexec5(really, mark, sp, 0, 0);
-}
-#endif
-
bool
Perl_do_aexec5(pTHX_ SV *really, register SV **mark, register SV **sp,
int fd, int do_report)
{
-#ifdef MACOS_TRADITIONAL
+ dVAR;
+#if defined(MACOS_TRADITIONAL) || defined(__SYMBIAN32__)
Perl_croak(aTHX_ "exec? I'm not *that* kind of operating system");
#else
- register char **a;
- char *tmps = Nullch;
- STRLEN n_a;
-
if (sp > mark) {
- New(401,PL_Argv, sp - mark + 1, char*);
+ char **a;
+ const char *tmps = Nullch;
+ Newx(PL_Argv, sp - mark + 1, char*);
a = PL_Argv;
+
while (++mark <= sp) {
if (*mark)
- *a++ = SvPVx(*mark, n_a);
+ *a++ = (char*)SvPV_nolen_const(*mark);
else
*a++ = "";
}
*a = Nullch;
if (really)
- tmps = SvPV(really, n_a);
+ tmps = SvPV_nolen_const(really);
if ((!really && *PL_Argv[0] != '/') ||
(really && *tmps != '/')) /* will execvp use PATH? */
TAINT_ENV(); /* testing IFS here is overkill, probably */
void
Perl_do_execfree(pTHX)
{
- if (PL_Argv) {
- Safefree(PL_Argv);
- PL_Argv = Null(char **);
- }
- if (PL_Cmd) {
- Safefree(PL_Cmd);
- PL_Cmd = Nullch;
- }
+ Safefree(PL_Argv);
+ PL_Argv = Null(char **);
+ Safefree(PL_Cmd);
+ PL_Cmd = Nullch;
}
-#if !defined(OS2) && !defined(WIN32) && !defined(DJGPP) && !defined(EPOC) && !defined(MACOS_TRADITIONAL)
+#ifdef PERL_DEFAULT_DO_EXEC3_IMPLEMENTATION
bool
-Perl_do_exec(pTHX_ char *cmd)
-{
- return do_exec3(cmd,0,0);
-}
-
-bool
-Perl_do_exec3(pTHX_ char *cmd, int fd, int do_report)
+Perl_do_exec3(pTHX_ const char *incmd, int fd, int do_report)
{
+ dVAR;
register char **a;
register char *s;
+ char *cmd;
+ int cmdlen;
+
+ /* Make a copy so we can change it */
+ cmdlen = strlen(incmd);
+ Newx(cmd, cmdlen+1, char);
+ strncpy(cmd, incmd, cmdlen);
+ cmd[cmdlen] = 0;
while (*cmd && isSPACE(*cmd))
cmd++;
#ifdef CSH
{
- char flags[10];
+ char flags[PERL_FLAGS_MAX];
if (strnEQ(cmd,PL_cshname,PL_cshlen) &&
strnEQ(cmd+PL_cshlen," -c",3)) {
+#ifdef HAS_STRLCPY
+ strlcpy(flags, "-c", PERL_FLAGS_MAX);
+#else
strcpy(flags,"-c");
+#endif
s = cmd+PL_cshlen+3;
if (*s == 'f') {
s++;
+#ifdef HAS_STRLCPY
+ strlcat(flags, "f", PERL_FLAGS_MAX);
+#else
strcat(flags,"f");
+#endif
}
if (*s == ' ')
s++;
PerlProc_execl(PL_cshname,"csh", flags, ncmd, (char*)0);
PERL_FPU_POST_EXEC
*s = '\'';
+ Safefree(cmd);
return FALSE;
}
}
&& s > cmd + 1 && s[-1] == '2' && isSPACE(s[-2])
&& (!s[3] || isSPACE(s[3])))
{
- char *t = s + 3;
+ const char *t = s + 3;
while (*t && isSPACE(*t))
++t;
PERL_FPU_PRE_EXEC
PerlProc_execl(PL_sh_path, "sh", "-c", cmd, (char*)0);
PERL_FPU_POST_EXEC
+ Safefree(cmd);
return FALSE;
}
}
- New(402,PL_Argv, (s - cmd) / 2 + 2, char*);
+ Newx(PL_Argv, (s - cmd) / 2 + 2, char*);
PL_Cmd = savepvn(cmd, s-cmd);
a = PL_Argv;
for (s = PL_Cmd; *s;) {
goto doshell;
}
{
- int e = errno;
-
if (ckWARN(WARN_EXEC))
Perl_warner(aTHX_ packWARN(WARN_EXEC), "Can't exec \"%s\": %s",
PL_Argv[0], Strerror(errno));
if (do_report) {
+ int e = errno;
PerlLIO_write(fd, (void*)&e, sizeof(int));
PerlLIO_close(fd);
}
}
}
do_execfree();
+ Safefree(cmd);
return FALSE;
}
Perl_apply(pTHX_ I32 type, register SV **mark, register SV **sp)
{
register I32 val;
- register I32 val2;
register I32 tot = 0;
- char *what;
- char *s;
- SV **oldmark = mark;
- STRLEN n_a;
+ const char *what;
+ const char *s;
+ SV ** const oldmark = mark;
#define APPLY_TAINT_PROPER() \
STMT_START { \
APPLY_TAINT_PROPER();
tot = sp - mark;
while (++mark <= sp) {
- char *name = SvPVx(*mark, n_a);
- APPLY_TAINT_PROPER();
- if (PerlLIO_chmod(name, val))
- tot--;
+ GV* gv;
+ if (SvTYPE(*mark) == SVt_PVGV) {
+ gv = (GV*)*mark;
+ do_fchmod:
+ if (GvIO(gv) && IoIFP(GvIOp(gv))) {
+#ifdef HAS_FCHMOD
+ APPLY_TAINT_PROPER();
+ if (fchmod(PerlIO_fileno(IoIFP(GvIOn(gv))), val))
+ tot--;
+#else
+ Perl_die(aTHX_ PL_no_func, "fchmod");
+#endif
+ }
+ else {
+ tot--;
+ }
+ }
+ else if (SvROK(*mark) && SvTYPE(SvRV(*mark)) == SVt_PVGV) {
+ gv = (GV*)SvRV(*mark);
+ goto do_fchmod;
+ }
+ else {
+ const char *name = SvPV_nolen_const(*mark);
+ APPLY_TAINT_PROPER();
+ if (PerlLIO_chmod(name, val))
+ tot--;
+ }
}
}
break;
what = "chown";
APPLY_TAINT_PROPER();
if (sp - mark > 2) {
+ register I32 val2;
val = SvIVx(*++mark);
val2 = SvIVx(*++mark);
APPLY_TAINT_PROPER();
tot = sp - mark;
while (++mark <= sp) {
- char *name = SvPVx(*mark, n_a);
- APPLY_TAINT_PROPER();
- if (PerlLIO_chown(name, val, val2))
- tot--;
+ GV* gv;
+ if (SvTYPE(*mark) == SVt_PVGV) {
+ gv = (GV*)*mark;
+ do_fchown:
+ if (GvIO(gv) && IoIFP(GvIOp(gv))) {
+#ifdef HAS_FCHOWN
+ APPLY_TAINT_PROPER();
+ if (fchown(PerlIO_fileno(IoIFP(GvIOn(gv))), val, val2))
+ tot--;
+#else
+ Perl_die(aTHX_ PL_no_func, "fchown");
+#endif
+ }
+ else {
+ tot--;
+ }
+ }
+ else if (SvROK(*mark) && SvTYPE(SvRV(*mark)) == SVt_PVGV) {
+ gv = (GV*)SvRV(*mark);
+ goto do_fchown;
+ }
+ else {
+ const char *name = SvPV_nolen_const(*mark);
+ APPLY_TAINT_PROPER();
+ if (PerlLIO_chown(name, val, val2))
+ tot--;
+ }
}
}
break;
APPLY_TAINT_PROPER();
if (mark == sp)
break;
- s = SvPVx(*++mark, n_a);
+ s = SvPVx_nolen_const(*++mark);
if (isALPHA(*s)) {
if (*s == 'S' && s[1] == 'I' && s[2] == 'G')
s += 3;
APPLY_TAINT_PROPER();
tot = sp - mark;
while (++mark <= sp) {
- s = SvPVx(*mark, n_a);
+ s = SvPV_nolen_const(*mark);
APPLY_TAINT_PROPER();
if (PL_euid || PL_unsafe) {
if (UNLINK(s))
if (sp - mark > 2) {
#if defined(I_UTIME) || defined(VMS)
struct utimbuf utbuf;
+ struct utimbuf *utbufp = &utbuf;
#else
struct {
Time_t actime;
Time_t modtime;
} utbuf;
+ void *utbufp = &utbuf;
#endif
SV* accessed = *++mark;
SV* modified = *++mark;
- void * utbufp = &utbuf;
/* Be like C, and if both times are undefined, let the C
* library figure out what to do. This usually means
utbuf.modtime = (Time_t)SvIVx(modified); /* time modified */
#endif
}
- APPLY_TAINT_PROPER();
+ APPLY_TAINT_PROPER();
tot = sp - mark;
while (++mark <= sp) {
- char *name = SvPVx(*mark, n_a);
+ char *name = SvPV_nolen(*mark);
APPLY_TAINT_PROPER();
- if (PerlLIO_utime(name, utbufp))
+ if (PerlLIO_utime(name, utbufp))
tot--;
}
}
/* Do the permissions allow some operation? Assumes statcache already set. */
#ifndef VMS /* VMS' cando is in vms.c */
bool
-Perl_cando(pTHX_ Mode_t mode, Uid_t effective, register Stat_t *statbufp)
-/* Note: we use `effective' both for uids and gids.
+Perl_cando(pTHX_ Mode_t mode, Uid_t effective, register const Stat_t *statbufp)
+/* Note: we use "effective" both for uids and gids.
* Here we are betting on Uid_t being equal or wider than Gid_t. */
{
#ifdef DOSISH
I32
Perl_do_ipcget(pTHX_ I32 optype, SV **mark, SV **sp)
{
- key_t key;
- I32 n, flags;
+ key_t key = (key_t)SvNVx(*++mark);
+ const I32 n = (optype == OP_MSGGET) ? 0 : SvIVx(*++mark);
+ const I32 flags = SvIVx(*++mark);
+ (void)sp;
- key = (key_t)SvNVx(*++mark);
- n = (optype == OP_MSGGET) ? 0 : SvIVx(*++mark);
- flags = SvIVx(*++mark);
SETERRNO(0,0);
switch (optype)
{
{
SV *astr;
char *a;
- I32 id, n, cmd, infosize, getinfo;
+ STRLEN infosize;
+ I32 getinfo;
I32 ret = -1;
+ const I32 id = SvIVx(*++mark);
+ const I32 n = (optype == OP_SEMCTL) ? SvIVx(*++mark) : 0;
+ const I32 cmd = SvIVx(*++mark);
+ PERL_UNUSED_ARG(sp);
- id = SvIVx(*++mark);
- n = (optype == OP_SEMCTL) ? SvIVx(*++mark) : 0;
- cmd = SvIVx(*++mark);
astr = *++mark;
infosize = 0;
getinfo = (cmd == IPC_STAT);
if (infosize)
{
- STRLEN len;
if (getinfo)
{
- SvPV_force(astr, len);
+ SvPV_force_nolen(astr);
a = SvGROW(astr, infosize+1);
}
else
{
+ STRLEN len;
a = SvPV(astr, len);
if (len != infosize)
Perl_croak(aTHX_ "Bad arg length for %s, is %lu, should be %ld",
{
#ifdef HAS_MSG
SV *mstr;
- char *mbuf;
- I32 id, msize, flags;
+ const char *mbuf;
+ I32 msize, flags;
STRLEN len;
+ const I32 id = SvIVx(*++mark);
+ PERL_UNUSED_ARG(sp);
- id = SvIVx(*++mark);
mstr = *++mark;
flags = SvIVx(*++mark);
- mbuf = SvPV(mstr, len);
+ mbuf = SvPV_const(mstr, len);
if ((msize = len - sizeof(long)) < 0)
Perl_croak(aTHX_ "Arg too short for msgsnd");
SETERRNO(0,0);
SV *mstr;
char *mbuf;
long mtype;
- I32 id, msize, flags, ret;
- STRLEN len;
+ I32 msize, flags, ret;
+ const I32 id = SvIVx(*++mark);
+ PERL_UNUSED_ARG(sp);
- id = SvIVx(*++mark);
mstr = *++mark;
/* suppress warning when reading into undef var --jhi */
if (! SvOK(mstr))
msize = SvIVx(*++mark);
mtype = (long)SvIVx(*++mark);
flags = SvIVx(*++mark);
- SvPV_force(mstr, len);
+ SvPV_force_nolen(mstr);
mbuf = SvGROW(mstr, sizeof(long)+msize+1);
SETERRNO(0,0);
{
#ifdef HAS_SEM
SV *opstr;
- char *opbuf;
- I32 id;
+ const char *opbuf;
STRLEN opsize;
+ const I32 id = SvIVx(*++mark);
+ PERL_UNUSED_ARG(sp);
- id = SvIVx(*++mark);
opstr = *++mark;
- opbuf = SvPV(opstr, opsize);
+ opbuf = SvPV_const(opstr, opsize);
if (opsize < 3 * SHORTSIZE
|| (opsize % (3 * SHORTSIZE))) {
SETERRNO(EINVAL,LIB_INVARG);
SETERRNO(0,0);
/* We can't assume that sizeof(struct sembuf) == 3 * sizeof(short). */
{
- int nsops = opsize / (3 * sizeof (short));
+ const int nsops = opsize / (3 * sizeof (short));
int i = nsops;
short *ops = (short *) opbuf;
short *o = ops;
struct sembuf *temps, *t;
I32 result;
- New (0, temps, nsops, struct sembuf);
+ Newx (temps, nsops, struct sembuf);
t = temps;
while (i--) {
t->sem_num = *o++;
{
#ifdef HAS_SHM
SV *mstr;
- char *mbuf, *shm;
- I32 id, mpos, msize;
- STRLEN len;
+ char *shm;
+ I32 mpos, msize;
struct shmid_ds shmds;
+ const I32 id = SvIVx(*++mark);
+ PERL_UNUSED_ARG(sp);
- id = SvIVx(*++mark);
mstr = *++mark;
mpos = SvIVx(*++mark);
msize = SvIVx(*++mark);
if (shm == (char *)-1) /* I hate System V IPC, I really do */
return -1;
if (optype == OP_SHMREAD) {
+ const char *mbuf;
/* suppress warning when reading into undef var (tchrist 3/Mar/00) */
if (! SvOK(mstr))
sv_setpvn(mstr, "", 0);
- SvPV_force(mstr, len);
+ SvPV_force_nolen(mstr);
mbuf = SvGROW(mstr, msize+1);
Copy(shm + mpos, mbuf, msize, char);
}
else {
I32 n;
+ STRLEN len;
- mbuf = SvPV(mstr, len);
+ const char *mbuf = SvPV_const(mstr, len);
if ((n = len) > msize)
n = msize;
Copy(mbuf, shm + mpos, n, char);
PerlIO *
Perl_start_glob (pTHX_ SV *tmpglob, IO *io)
{
- SV *tmpcmd = NEWSV(55, 0);
+ dVAR;
+ SV * const tmpcmd = NEWSV(55, 0);
PerlIO *fp;
ENTER;
SAVEFREESV(tmpcmd);
#include <rmsdef.h>
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 * const rstr = rslt + sizeof(unsigned short int);
+ char *begin, *end, *cp;
$DESCRIPTOR(dfltdsc,"SYS$DISK:[]*.*;");
PerlIO *tmpfp;
STRLEN i;
}
if ((tmpfp = PerlIO_tmpfile()) != NULL) {
Stat_t st;
- if (!PerlLIO_stat(SvPVX(tmpglob),&st) && S_ISDIR(st.st_mode))
+ if (!PerlLIO_stat(SvPVX_const(tmpglob),&st) && S_ISDIR(st.st_mode))
ok = ((wilddsc.dsc$a_pointer = tovmspath(SvPVX(tmpglob),vmsspec)) != NULL);
else ok = ((wilddsc.dsc$a_pointer = tovmsspec(SvPVX(tmpglob),vmsspec)) != NULL);
if (ok) wilddsc.dsc$w_length = (unsigned short int) strlen(wilddsc.dsc$a_pointer);
#endif /* !CSH */
#endif /* !DOSISH */
#endif /* MACOS_TRADITIONAL */
- (void)do_open(PL_last_in_gv, SvPVX(tmpcmd), SvCUR(tmpcmd),
+ (void)do_open(PL_last_in_gv, (char*)SvPVX_const(tmpcmd), SvCUR(tmpcmd),
FALSE, O_RDONLY, 0, Nullfp);
fp = IoIFP(io);
#endif /* !VMS */
LEAVE;
return fp;
}
+
+/*
+ * Local variables:
+ * c-indentation-style: bsd
+ * c-basic-offset: 4
+ * indent-tabs-mode: t
+ * End:
+ *
+ * ex: set ts=8 sts=4 sw=4 noet:
+ */
https://perl5.git.perl.org / perl5.git / blobdiff