/* doio.c
*
- * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
- * 2000, 2001, 2002, 2003, 2004, 2005, 2006, by Larry Wall and others
+ * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
+ * 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 by Larry Wall and others
*
* You may distribute under the terms of either the GNU General Public
* License or the Artistic License, as specified in the README file.
*/
/*
- * "Far below them they saw the white waters pour into a foaming bowl, and
- * then swirl darkly about a deep oval basin in the rocks, until they found
- * their way out again through a narrow gate, and flowed away, fuming and
- * chattering, into calmer and more level reaches."
+ * 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.
+ *
+ * [p.684 of _The Lord of the Rings_, IV/vi: "The Forbidden Pool"]
*/
/* This file contains functions that do the actual I/O on behalf of ops.
bool was_fdopen = FALSE;
bool in_raw = 0, in_crlf = 0, out_raw = 0, out_crlf = 0;
char *type = NULL;
- char mode[PERL_MODE_MAX]; /* stdio file mode ("r\0", "rb\0", "r+b\0" etc.) */
+ char mode[PERL_MODE_MAX]; /* file mode ("r\0", "rb\0", "ab\0" etc.) */
SV *namesv;
+ PERL_ARGS_ASSERT_DO_OPENN;
+
Zero(mode,sizeof(mode),char);
PL_forkprocess = 1; /* assume true if no fork */
IoTYPE(io) = PerlIO_intmode2str(rawmode, &mode[ix], &writing);
- namesv = sv_2mortal(newSVpv(oname,0));
+ namesv = newSVpvn_flags(oname, len, SVs_TEMP);
num_svs = 1;
svp = &namesv;
type = NULL;
STRLEN olen = len;
char *tend;
int dodup = 0;
- PerlIO *that_fp = NULL;
type = savepvn(oname, len);
tend = type+len;
SAVEFREEPV(type);
/* Lose leading and trailing white space */
- for (; isSPACE(*type); type++) ;
+ while (isSPACE(*type))
+ type++;
while (tend > type && isSPACE(tend[-1]))
*--tend = '\0';
goto say_false;
}
#endif /* USE_STDIO */
- name = SvOK(*svp) ? savesvpv (*svp) : savepvn ("", 0);
+ name = (SvOK(*svp) || SvGMAGICAL(*svp)) ?
+ savesvpv (*svp) : savepvs ("");
SAVEFREEPV(name);
}
else {
}
type++;
}
- for (type++; isSPACE(*type); type++) ;
+ do {
+ type++;
+ } while (isSPACE(*type));
if (!num_svs) {
name = type;
len = tend-type;
}
mode[0] = 'w';
writing = 1;
-#ifdef HAS_STRLCAT
if (out_raw)
- strlcat(mode, "b", PERL_MODE_MAX);
+ mode[1] = 'b';
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
+ mode[1] = 't';
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);
+ mode[1] = 'b';
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
+ mode[1] = 't';
if (*type == '&') {
duplicity:
dodup = PERLIO_DUP_FD;
fp = supplied_fp;
}
else {
+ PerlIO *that_fp = NULL;
if (num_svs > 1) {
+ /* diag_listed_as: More than one argument to '%s' open */
Perl_croak(aTHX_ "More than one argument to '%c&' open",IoTYPE(io));
}
- for (; isSPACE(*type); type++) ;
+ while (isSPACE(*type))
+ type++;
if (num_svs && (SvIOK(*svp) || (SvPOK(*svp) && looks_like_number(*svp)))) {
fd = SvUV(*svp);
num_svs = 0;
thatio = sv_2io(*svp);
}
else {
- GV *thatgv;
- thatgv = gv_fetchpvn_flags(type, tend - type,
+ GV * const thatgv = gv_fetchpvn_flags(type, tend - type,
0, SVt_PVIO);
thatio = GvIO(thatgv);
}
}
} /* & */
else {
- for (; isSPACE(*type); type++) ;
+ while (isSPACE(*type))
+ type++;
if (*type == IoTYPE_STD && (!type[1] || isSPACE(type[1]) || type[1] == ':')) {
type++;
fp = PerlIO_stdout();
IoTYPE(io) = IoTYPE_STD;
if (num_svs > 1) {
+ /* diag_listed_as: More than one argument to '%s' open */
Perl_croak(aTHX_ "More than one argument to '>%c' open",IoTYPE_STD);
}
}
else {
if (!num_svs) {
- namesv = sv_2mortal(newSVpvn(type,tend - type));
+ namesv = newSVpvn_flags(type, tend - type, SVs_TEMP);
num_svs = 1;
svp = &namesv;
type = NULL;
goto unknown_open_mode;
} /* IoTYPE_WRONLY */
else if (*type == IoTYPE_RDONLY) {
- for (type++; isSPACE(*type); type++) ;
+ do {
+ type++;
+ } while (isSPACE(*type));
mode[0] = 'r';
-#ifdef HAS_STRLCAT
if (in_raw)
- strlcat(mode, "b", PERL_MODE_MAX);
+ mode[1] = 'b';
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
+ mode[1] = 't';
if (*type == '&') {
goto duplicity;
}
fp = PerlIO_stdin();
IoTYPE(io) = IoTYPE_STD;
if (num_svs > 1) {
+ /* diag_listed_as: More than one argument to '%s' open */
Perl_croak(aTHX_ "More than one argument to '<%c' open",IoTYPE_STD);
}
}
else {
if (!num_svs) {
- namesv = sv_2mortal(newSVpvn(type,tend - type));
+ namesv = newSVpvn_flags(type, tend - type, SVs_TEMP);
num_svs = 1;
svp = &namesv;
type = NULL;
TAINT_PROPER("piped open");
mode[0] = 'r';
-#ifdef HAS_STRLCAT
if (in_raw)
- strlcat(mode, "b", PERL_MODE_MAX);
+ mode[1] = 'b';
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
+ mode[1] = 't';
if (num_svs > 1) {
fp = PerlProc_popen_list(mode,num_svs,svp);
}
IoTYPE(io) = IoTYPE_PIPE;
if (num_svs) {
- for (; isSPACE(*type); type++) ;
+ while (isSPACE(*type))
+ type++;
if (*type) {
if (PerlIO_apply_layers(aTHX_ fp, mode, type) != 0) {
goto say_false;
;
mode[0] = 'r';
-#ifdef HAS_STRLCAT
if (in_raw)
- strlcat(mode, "b", PERL_MODE_MAX);
+ mode[1] = 'b';
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
+ mode[1] = 't';
if (*name == '-' && name[1] == '\0') {
fp = PerlIO_stdin();
}
else {
if (!num_svs) {
- namesv = sv_2mortal(newSVpvn(type,tend - type));
+ namesv = newSVpvn_flags(type, tend - type, SVs_TEMP);
num_svs = 1;
svp = &namesv;
type = NULL;
Pid_t pid;
SV *sv;
- LOCK_FDPID_MUTEX;
sv = *av_fetch(PL_fdpid,fd,TRUE);
SvUPGRADE(sv, SVt_IV);
pid = SvIVX(sv);
sv = *av_fetch(PL_fdpid,savefd,TRUE);
SvUPGRADE(sv, SVt_IV);
SvIV_set(sv, pid);
- UNLOCK_FDPID_MUTEX;
}
#endif
}
#if defined(HAS_FCNTL) && defined(F_SETFD)
if (fd >= 0) {
- const int save_errno = errno;
+ dSAVE_ERRNO;
fcntl(fd,F_SETFD,fd > PL_maxsysfd); /* can change errno */
- errno = save_errno;
+ RESTORE_ERRNO;
}
#endif
IoIFP(io) = fp;
Gid_t filegid;
IO * const io = GvIOp(gv);
+ PERL_ARGS_ASSERT_NEXTARGV;
+
if (!PL_argvoutgv)
PL_argvoutgv = gv_fetchpvs("ARGVOUT", GV_ADD|GV_NOTQUAL, 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_simple(PL_defoutgv));
+ assert(PL_defoutgv);
+ Perl_av_create_and_push(aTHX_ &PL_argvout_stack,
+ SvREFCNT_inc_simple_NN(PL_defoutgv));
}
}
if (PL_filemode & (S_ISUID|S_ISGID)) {
fileuid = PL_statbuf.st_uid;
filegid = PL_statbuf.st_gid;
if (!S_ISREG(PL_filemode)) {
- if (ckWARN_d(WARN_INPLACE))
- Perl_warner(aTHX_ packWARN(WARN_INPLACE),
- "Can't do inplace edit: %s is not a regular file",
- PL_oldname );
+ Perl_ck_warner_d(aTHX_ packWARN(WARN_INPLACE),
+ "Can't do inplace edit: %s is not a regular file",
+ PL_oldname );
do_close(gv,FALSE);
continue;
}
- if (*PL_inplace) {
+ if (*PL_inplace && strNE(PL_inplace, "*")) {
const char *star = strchr(PL_inplace, '*');
if (star) {
const char *begin = PL_inplace;
- sv_setpvn(sv, "", 0);
+ sv_setpvs(sv, "");
do {
sv_catpvn(sv, begin, star - begin);
sv_catpvn(sv, PL_oldname, oldlen);
#endif
)
{
- if (ckWARN_d(WARN_INPLACE))
- Perl_warner(aTHX_ packWARN(WARN_INPLACE),
- "Can't do inplace edit: %"SVf" would not be unique",
- sv);
+ Perl_ck_warner_d(aTHX_ packWARN(WARN_INPLACE),
+ "Can't do inplace edit: %"SVf" would not be unique",
+ SVfARG(sv));
do_close(gv,FALSE);
continue;
}
#ifdef HAS_RENAME
#if !defined(DOSISH) && !defined(__CYGWIN__) && !defined(EPOC)
if (PerlLIO_rename(PL_oldname,SvPVX_const(sv)) < 0) {
- if (ckWARN_d(WARN_INPLACE))
- Perl_warner(aTHX_ packWARN(WARN_INPLACE),
- "Can't rename %s to %"SVf": %s, skipping file",
- PL_oldname, sv, Strerror(errno) );
+ Perl_ck_warner_d(aTHX_ packWARN(WARN_INPLACE),
+ "Can't rename %s to %"SVf": %s, skipping file",
+ PL_oldname, SVfARG(sv), Strerror(errno));
do_close(gv,FALSE);
continue;
}
do_close(gv,FALSE);
(void)PerlLIO_unlink(SvPVX_const(sv));
(void)PerlLIO_rename(PL_oldname,SvPVX_const(sv));
- do_open(gv,(char*)SvPVX_const(sv),SvCUR(sv),PL_inplace!=0,
- O_RDONLY,0,NULL);
+ do_open(gv,(char*)SvPVX_const(sv),SvCUR(sv),TRUE,O_RDONLY,0,NULL);
#endif /* DOSISH */
#else
(void)UNLINK(SvPVX_const(sv));
if (link(PL_oldname,SvPVX_const(sv)) < 0) {
- if (ckWARN_d(WARN_INPLACE))
- Perl_warner(aTHX_ packWARN(WARN_INPLACE),
- "Can't rename %s to %"SVf": %s, skipping file",
- PL_oldname, sv, Strerror(errno) );
+ Perl_ck_warner_d(aTHX_ packWARN(WARN_INPLACE),
+ "Can't rename %s to %"SVf": %s, skipping file",
+ PL_oldname, SVfARG(sv), Strerror(errno) );
do_close(gv,FALSE);
continue;
}
#if !defined(DOSISH) && !defined(AMIGAOS)
# ifndef VMS /* Don't delete; use automatic file versioning */
if (UNLINK(PL_oldname) < 0) {
- if (ckWARN_d(WARN_INPLACE))
- Perl_warner(aTHX_ packWARN(WARN_INPLACE),
- "Can't remove %s: %s, skipping file",
- PL_oldname, Strerror(errno) );
+ Perl_ck_warner_d(aTHX_ packWARN(WARN_INPLACE),
+ "Can't remove %s: %s, skipping file",
+ PL_oldname, Strerror(errno) );
do_close(gv,FALSE);
continue;
}
#endif
}
- sv_setpvn(sv,">",!PL_inplace);
- sv_catpvn(sv,PL_oldname,oldlen);
+ sv_setpvn(sv,PL_oldname,oldlen);
SETERRNO(0,0); /* in case sprintf set errno */
+ if (!Perl_do_openn(aTHX_ PL_argvoutgv, (char*)SvPVX_const(sv),
+ SvCUR(sv), TRUE,
#ifdef VMS
- if (!do_open(PL_argvoutgv,(char*)SvPVX_const(sv),SvCUR(sv),
- PL_inplace!=0,O_WRONLY|O_CREAT|O_TRUNC,0,NULL))
+ O_WRONLY|O_CREAT|O_TRUNC,0,
#else
- if (!do_open(PL_argvoutgv,(char*)SvPVX_const(sv),SvCUR(sv),
- PL_inplace!=0,O_WRONLY|O_CREAT|OPEN_EXCL,0666,
- NULL))
+ O_WRONLY|O_CREAT|OPEN_EXCL,0600,
#endif
- {
- if (ckWARN_d(WARN_INPLACE))
- Perl_warner(aTHX_ packWARN(WARN_INPLACE), "Can't do inplace edit on %s: %s",
- PL_oldname, Strerror(errno) );
+ NULL, NULL, 0)) {
+ Perl_ck_warner_d(aTHX_ packWARN(WARN_INPLACE), "Can't do inplace edit on %s: %s",
+ PL_oldname, Strerror(errno) );
do_close(gv,FALSE);
continue;
}
#ifdef HAS_FCHMOD
(void)fchmod(PL_lastfd,PL_filemode);
#else
-# if !(defined(WIN32) && defined(__BORLANDC__))
- /* Borland runtime creates a readonly file! */
(void)PerlLIO_chmod(PL_oldname,PL_filemode);
-# endif
#endif
if (fileuid != PL_statbuf.st_uid || filegid != PL_statbuf.st_gid) {
#ifdef HAS_FCHOWN
if (io && (IoFLAGS(io) & IOf_ARGV)
&& PL_argvout_stack && AvFILLp(PL_argvout_stack) >= 0)
{
- GV *oldout = (GV*)av_pop(PL_argvout_stack);
+ GV * const oldout = MUTABLE_GV(av_pop(PL_argvout_stack));
setdefout(oldout);
SvREFCNT_dec(oldout);
return NULL;
if (!gv)
gv = PL_argvgv;
- if (!gv || SvTYPE(gv) != SVt_PVGV) {
+ if (!gv || !isGV_with_GP(gv)) {
if (not_implicit)
SETERRNO(EBADF,SS_IVCHAN);
return FALSE;
io = GvIO(gv);
if (!io) { /* never opened */
if (not_implicit) {
- if (ckWARN(WARN_UNOPENED)) /* no check for closed here */
- report_evil_fh(gv, io, PL_op->op_type);
+ report_evil_fh(gv);
SETERRNO(EBADF,SS_IVCHAN);
}
return FALSE;
dVAR;
bool retval = FALSE;
+ PERL_ARGS_ASSERT_IO_CLOSE;
+
if (IoIFP(io)) {
if (IoTYPE(io) == IoTYPE_PIPE) {
const int status = PerlProc_pclose(IoIFP(io));
dVAR;
register IO * const io = GvIO(gv);
+ PERL_ARGS_ASSERT_DO_EOF;
+
if (!io)
return TRUE;
- else if ((IoTYPE(io) == IoTYPE_WRONLY) && ckWARN(WARN_IO))
- report_evil_fh(gv, io, OP_phoney_OUTPUT_ONLY);
+ else if (IoTYPE(io) == IoTYPE_WRONLY)
+ report_wrongway_fh(gv, '>');
while (IoIFP(io)) {
if (PerlIO_has_cntptr(IoIFP(io))) { /* (the code works without this) */
{
/* getc and ungetc can stomp on errno */
- const int saverrno = errno;
+ dSAVE_ERRNO;
const int ch = PerlIO_getc(IoIFP(io));
if (ch != EOF) {
(void)PerlIO_ungetc(IoIFP(io),ch);
- errno = saverrno;
+ RESTORE_ERRNO;
return FALSE;
}
- errno = saverrno;
+ RESTORE_ERRNO;
}
if (PerlIO_has_cntptr(IoIFP(io)) && PerlIO_canset_cnt(IoIFP(io))) {
Perl_do_tell(pTHX_ GV *gv)
{
dVAR;
- register IO *io = NULL;
+ IO *const io = GvIO(gv);
register PerlIO *fp;
- if (gv && (io = GvIO(gv)) && (fp = IoIFP(io))) {
+ PERL_ARGS_ASSERT_DO_TELL;
+
+ if (io && (fp = IoIFP(io))) {
#ifdef ULTRIX_STDIO_BOTCH
if (PerlIO_eof(fp))
(void)PerlIO_seek(fp, 0L, 2); /* ultrix 1.2 workaround */
#endif
return PerlIO_tell(fp);
}
- if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
- report_evil_fh(gv, io, PL_op->op_type);
+ report_evil_fh(gv);
SETERRNO(EBADF,RMS_IFI);
return (Off_t)-1;
}
Perl_do_seek(pTHX_ GV *gv, Off_t pos, int whence)
{
dVAR;
- register IO *io = NULL;
+ IO *const io = GvIO(gv);
register PerlIO *fp;
- if (gv && (io = GvIO(gv)) && (fp = IoIFP(io))) {
+ if (io && (fp = IoIFP(io))) {
#ifdef ULTRIX_STDIO_BOTCH
if (PerlIO_eof(fp))
(void)PerlIO_seek(fp, 0L, 2); /* ultrix 1.2 workaround */
#endif
return PerlIO_seek(fp, pos, whence) >= 0;
}
- if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
- report_evil_fh(gv, io, PL_op->op_type);
+ report_evil_fh(gv);
SETERRNO(EBADF,RMS_IFI);
return FALSE;
}
Perl_do_sysseek(pTHX_ GV *gv, Off_t pos, int whence)
{
dVAR;
- register IO *io = NULL;
+ IO *const io = GvIO(gv);
register PerlIO *fp;
- if (gv && (io = GvIO(gv)) && (fp = IoIFP(io)))
+ PERL_ARGS_ASSERT_DO_SYSSEEK;
+
+ if (io && (fp = IoIFP(io)))
return PerlLIO_lseek(PerlIO_fileno(fp), pos, whence);
- if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
- report_evil_fh(gv, io, PL_op->op_type);
+ report_evil_fh(gv);
SETERRNO(EBADF,RMS_IFI);
return (Off_t)-1;
}
int
-Perl_mode_from_discipline(pTHX_ SV *discp)
+Perl_mode_from_discipline(pTHX_ const char *s, STRLEN len)
{
int mode = O_BINARY;
- if (discp) {
- STRLEN len;
- const char *s = SvPV_const(discp,len);
+ if (s) {
while (*s) {
if (*s == ':') {
switch (s[1]) {
/* code courtesy of William Kucharski */
#define HAS_CHSIZE
- struct flock fl;
Stat_t filebuf;
if (PerlLIO_fstat(fd, &filebuf) < 0)
}
else {
/* truncate length */
-
+ struct flock fl;
fl.l_whence = 0;
fl.l_len = 0;
fl.l_start = length;
Perl_do_print(pTHX_ register SV *sv, PerlIO *fp)
{
dVAR;
- register const char *tmps;
- STRLEN len;
+
+ PERL_ARGS_ASSERT_DO_PRINT;
/* assuming fp is checked earlier */
if (!sv)
return TRUE;
- switch (SvTYPE(sv)) {
- case SVt_NULL:
- if (ckWARN(WARN_UNINITIALIZED))
- report_uninit(sv);
- return TRUE;
- case SVt_IV:
- if (SvIOK(sv)) {
- SvGETMAGIC(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 (SvTYPE(sv) == SVt_IV && SvIOK(sv)) {
+ assert(!SvGMAGICAL(sv));
+ if (SvIsUV(sv))
+ PerlIO_printf(fp, "%"UVuf, (UV)SvUVX(sv));
+ else
+ PerlIO_printf(fp, "%"IVdf, (IV)SvIVX(sv));
+ return !PerlIO_error(fp);
+ }
+ else {
+ STRLEN len;
+ /* Do this first to trigger any overloading. */
+ const char *tmps = SvPV_const(sv, len);
+ U8 *tmpbuf = NULL;
+ bool happy = TRUE;
+
if (PerlIO_isutf8(fp)) {
- if (!SvUTF8(sv))
- sv_utf8_upgrade_flags(sv = sv_mortalcopy(sv),
- SV_GMAGIC|SV_UTF8_NO_ENCODING);
+ if (!SvUTF8(sv)) {
+ /* We don't modify the original scalar. */
+ tmpbuf = bytes_to_utf8((const U8*) tmps, &len);
+ tmps = (char *) tmpbuf;
+ }
+ else if (ckWARN_d(WARN_UTF8)) {
+ (void) check_utf8_print((const U8*) tmps, len);
+ }
}
else if (DO_UTF8(sv)) {
- if (!sv_utf8_downgrade((sv = sv_mortalcopy(sv)), TRUE)
- && ckWARN_d(WARN_UTF8))
- {
- Perl_warner(aTHX_ packWARN(WARN_UTF8), "Wide character in print");
+ STRLEN tmplen = len;
+ bool utf8 = TRUE;
+ U8 * const result = bytes_from_utf8((const U8*) tmps, &tmplen, &utf8);
+ if (!utf8) {
+ tmpbuf = result;
+ tmps = (char *) tmpbuf;
+ len = tmplen;
+ }
+ else {
+ assert((char *)result == tmps);
+ Perl_ck_warner_d(aTHX_ packWARN(WARN_UTF8),
+ "Wide character in %s",
+ PL_op ? OP_DESC(PL_op) : "print"
+ );
+ /* Could also check that isn't one of the things to avoid
+ * in utf8 by using check_utf8_print(), but not doing so,
+ * since the stream isn't a UTF8 stream */
}
}
- tmps = SvPV_const(sv, len);
- break;
+ /* To detect whether the process is about to overstep its
+ * filesize limit we would need getrlimit(). We could then
+ * also transparently raise the limit with setrlimit() --
+ * but only until the system hard limit/the filesystem limit,
+ * at which we would get EPERM. Note that when using buffered
+ * io the write failure can be delayed until the flush/close. --jhi */
+ if (len && (PerlIO_write(fp,tmps,len) == 0))
+ happy = FALSE;
+ Safefree(tmpbuf);
+ return happy ? !PerlIO_error(fp) : FALSE;
}
- /* 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
-Perl_my_stat(pTHX)
+Perl_my_stat_flags(pTHX_ const U32 flags)
{
dVAR;
dSP;
EXTEND(SP,1);
gv = cGVOP_gv;
do_fstat:
+ if (gv == PL_defgv)
+ return PL_laststatval;
io = GvIO(gv);
- if (io && IoIFP(io)) {
- PL_statgv = gv;
- sv_setpvn(PL_statname,"", 0);
- PL_laststype = OP_STAT;
- return (PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache));
- }
- else {
- if (gv == PL_defgv)
- return PL_laststatval;
- if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
- report_evil_fh(gv, io, PL_op->op_type);
- PL_statgv = NULL;
- sv_setpvn(PL_statname,"", 0);
- return (PL_laststatval = -1);
- }
+ do_fstat_have_io:
+ PL_laststype = OP_STAT;
+ PL_statgv = gv;
+ sv_setpvs(PL_statname, "");
+ if(io) {
+ if (IoIFP(io)) {
+ return (PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache));
+ } else if (IoDIRP(io)) {
+ return (PL_laststatval = PerlLIO_fstat(my_dirfd(IoDIRP(io)), &PL_statcache));
+ } else {
+ report_evil_fh(gv);
+ return (PL_laststatval = -1);
+ }
+ } else {
+ report_evil_fh(gv);
+ return (PL_laststatval = -1);
+ }
}
else if (PL_op->op_private & OPpFT_STACKED) {
return PL_laststatval;
const char *s;
STRLEN len;
PUTBACK;
- if (SvTYPE(sv) == SVt_PVGV) {
- gv = (GV*)sv;
- goto do_fstat;
- }
- else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
- gv = (GV*)SvRV(sv);
+ if ((gv = MAYBE_DEREF_GV_flags(sv,flags))) {
goto do_fstat;
}
+ else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVIO) {
+ io = MUTABLE_IO(SvRV(sv));
+ gv = NULL;
+ goto do_fstat_have_io;
+ }
- s = SvPV_const(sv, len);
+ s = SvPV_flags_const(sv, len, flags);
PL_statgv = NULL;
sv_setpvn(PL_statname, s, len);
s = SvPVX_const(PL_statname); /* s now NUL-terminated */
I32
-Perl_my_lstat(pTHX)
+Perl_my_lstat_flags(pTHX_ const U32 flags)
{
dVAR;
static const char no_prev_lstat[] = "The stat preceding -l _ wasn't an lstat";
dSP;
SV *sv;
+ const char *file;
if (PL_op->op_flags & OPf_REF) {
EXTEND(SP,1);
if (cGVOP_gv == PL_defgv) {
if (ckWARN(WARN_IO)) {
Perl_warner(aTHX_ packWARN(WARN_IO), "Use of -l on filehandle %s",
GvENAME(cGVOP_gv));
- return (PL_laststatval = -1);
}
+ return (PL_laststatval = -1);
}
else if (PL_laststype != OP_LSTAT
&& (PL_op->op_private & OPpFT_STACKED) && ckWARN(WARN_IO))
PL_statgv = NULL;
sv = POPs;
PUTBACK;
- if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV && ckWARN(WARN_IO)) {
+ if (SvROK(sv) && isGV_with_GP(SvRV(sv)) && ckWARN(WARN_IO)) {
Perl_warner(aTHX_ packWARN(WARN_IO), "Use of -l on filehandle %s",
- GvENAME((GV*) SvRV(sv)));
+ GvENAME((const GV *)SvRV(sv)));
return (PL_laststatval = -1);
}
- /* 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'))
+ file = SvPV_flags_const_nolen(sv, flags);
+ sv_setpv(PL_statname,file);
+ PL_laststatval = PerlLIO_lstat(file,&PL_statcache);
+ if (PL_laststatval < 0 && ckWARN(WARN_NEWLINE) && strchr(file, '\n'))
Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "lstat");
return PL_laststatval;
}
+static void
+S_exec_failed(pTHX_ const char *cmd, int fd, int do_report)
+{
+ const int e = errno;
+ PERL_ARGS_ASSERT_EXEC_FAILED;
+ if (ckWARN(WARN_EXEC))
+ Perl_warner(aTHX_ packWARN(WARN_EXEC), "Can't exec \"%s\": %s",
+ cmd, Strerror(e));
+ if (do_report) {
+ PerlLIO_write(fd, (void*)&e, sizeof(int));
+ PerlLIO_close(fd);
+ }
+}
+
bool
Perl_do_aexec5(pTHX_ SV *really, register SV **mark, register SV **sp,
int fd, int do_report)
{
dVAR;
-#if defined(MACOS_TRADITIONAL) || defined(__SYMBIAN32__)
+ PERL_ARGS_ASSERT_DO_AEXEC5;
+#if defined(__SYMBIAN32__) || defined(__LIBCATAMOUNT__)
Perl_croak(aTHX_ "exec? I'm not *that* kind of operating system");
#else
if (sp > mark) {
- char **a;
+ const char **a;
const char *tmps = NULL;
- Newx(PL_Argv, sp - mark + 1, char*);
+ Newx(PL_Argv, sp - mark + 1, const char*);
a = PL_Argv;
while (++mark <= sp) {
if (*mark)
- *a++ = (char*)SvPV_nolen_const(*mark);
+ *a++ = SvPV_nolen_const(*mark);
else
*a++ = "";
}
else
PerlProc_execvp(PL_Argv[0],EXEC_ARGV_CAST(PL_Argv));
PERL_FPU_POST_EXEC
- if (ckWARN(WARN_EXEC))
- Perl_warner(aTHX_ packWARN(WARN_EXEC), "Can't exec \"%s\": %s",
- (really ? tmps : PL_Argv[0]), Strerror(errno));
- if (do_report) {
- const int e = errno;
-
- PerlLIO_write(fd, (void*)&e, sizeof(int));
- PerlLIO_close(fd);
- }
+ S_exec_failed(aTHX_ (really ? tmps : PL_Argv[0]), fd, do_report);
}
do_execfree();
#endif
Perl_do_exec3(pTHX_ const char *incmd, int fd, int do_report)
{
dVAR;
- register char **a;
+ register const char **a;
register char *s;
+ char *buf;
char *cmd;
-
/* Make a copy so we can change it */
- const int cmdlen = strlen(incmd);
- Newx(cmd, cmdlen+1, char);
- strncpy(cmd, incmd, cmdlen);
- cmd[cmdlen] = 0;
+ const Size_t cmdlen = strlen(incmd) + 1;
+
+ PERL_ARGS_ASSERT_DO_EXEC3;
+
+ Newx(buf, cmdlen, char);
+ cmd = buf;
+ memcpy(cmd, incmd, cmdlen);
while (*cmd && isSPACE(*cmd))
cmd++;
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
+ my_strlcpy(flags, "-c", PERL_FLAGS_MAX);
s = cmd+PL_cshlen+3;
if (*s == 'f') {
s++;
-#ifdef HAS_STRLCPY
- strlcat(flags, "f", PERL_FLAGS_MAX);
-#else
- strcat(flags,"f");
-#endif
+ my_strlcat(flags, "f", PERL_FLAGS_MAX - 2);
}
if (*s == ' ')
s++;
if (s[-1] == '\'') {
*--s = '\0';
PERL_FPU_PRE_EXEC
- PerlProc_execl(PL_cshname,"csh", flags, ncmd, (char*)0);
+ PerlProc_execl(PL_cshname, "csh", flags, ncmd, (char*)NULL);
PERL_FPU_POST_EXEC
*s = '\'';
- Safefree(cmd);
+ S_exec_failed(aTHX_ PL_cshname, fd, do_report);
+ Safefree(buf);
return FALSE;
}
}
if (strnEQ(cmd,"exec",4) && isSPACE(cmd[4]))
goto doshell;
- for (s = cmd; *s && isALNUM(*s); s++) ; /* catch VAR=val gizmo */
+ s = cmd;
+ while (isALNUM(*s))
+ s++; /* catch VAR=val gizmo */
if (*s == '=')
goto doshell;
}
doshell:
PERL_FPU_PRE_EXEC
- PerlProc_execl(PL_sh_path, "sh", "-c", cmd, (char*)0);
+ PerlProc_execl(PL_sh_path, "sh", "-c", cmd, (char *)NULL);
PERL_FPU_POST_EXEC
- Safefree(cmd);
+ S_exec_failed(aTHX_ PL_sh_path, fd, do_report);
+ Safefree(buf);
return FALSE;
}
}
- Newx(PL_Argv, (s - cmd) / 2 + 2, char*);
+ Newx(PL_Argv, (s - cmd) / 2 + 2, const char*);
PL_Cmd = savepvn(cmd, s-cmd);
a = PL_Argv;
for (s = PL_Cmd; *s;) {
- while (*s && isSPACE(*s)) s++;
+ while (isSPACE(*s))
+ s++;
if (*s)
*(a++) = s;
- while (*s && !isSPACE(*s)) s++;
+ while (*s && !isSPACE(*s))
+ s++;
if (*s)
*s++ = '\0';
}
*a = NULL;
if (PL_Argv[0]) {
PERL_FPU_PRE_EXEC
- PerlProc_execvp(PL_Argv[0],PL_Argv);
+ PerlProc_execvp(PL_Argv[0],EXEC_ARGV_CAST(PL_Argv));
PERL_FPU_POST_EXEC
if (errno == ENOEXEC) { /* for system V NIH syndrome */
do_execfree();
goto doshell;
}
- if (ckWARN(WARN_EXEC))
- Perl_warner(aTHX_ packWARN(WARN_EXEC), "Can't exec \"%s\": %s",
- PL_Argv[0], Strerror(errno));
- if (do_report) {
- const int e = errno;
- PerlLIO_write(fd, (const void*)&e, sizeof(int));
- PerlLIO_close(fd);
- }
+ S_exec_failed(aTHX_ PL_Argv[0], fd, do_report);
}
do_execfree();
- Safefree(cmd);
+ Safefree(buf);
return FALSE;
}
const char *s;
SV ** const oldmark = mark;
+ PERL_ARGS_ASSERT_APPLY;
+
/* Doing this ahead of the switch statement preserves the old behaviour,
where attempting to use kill as a taint test test would fail on
platforms where kill was not defined. */
case OP_CHMOD:
APPLY_TAINT_PROPER();
if (++mark <= sp) {
- val = SvIVx(*mark);
+ val = SvIV(*mark);
APPLY_TAINT_PROPER();
tot = sp - mark;
while (++mark <= sp) {
GV* gv;
- if (SvTYPE(*mark) == SVt_PVGV) {
- gv = (GV*)*mark;
- do_fchmod:
+ if ((gv = MAYBE_DEREF_GV(*mark))) {
if (GvIO(gv) && IoIFP(GvIOp(gv))) {
#ifdef HAS_FCHMOD
APPLY_TAINT_PROPER();
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);
+ const char *name = SvPV_nomg_const_nolen(*mark);
APPLY_TAINT_PROPER();
if (PerlLIO_chmod(name, val))
tot--;
tot = sp - mark;
while (++mark <= sp) {
GV* gv;
- if (SvTYPE(*mark) == SVt_PVGV) {
- gv = (GV*)*mark;
- do_fchown:
+ if ((gv = MAYBE_DEREF_GV(*mark))) {
if (GvIO(gv) && IoIFP(GvIOp(gv))) {
#ifdef HAS_FCHOWN
APPLY_TAINT_PROPER();
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);
+ const char *name = SvPV_nomg_const_nolen(*mark);
APPLY_TAINT_PROPER();
if (PerlLIO_chown(name, val, val2))
tot--;
Perl_croak(aTHX_ "Unrecognized signal name \"%s\"",s);
}
else
- val = SvIVx(*mark);
+ val = SvIV(*mark);
APPLY_TAINT_PROPER();
tot = sp - mark;
#ifdef VMS
* CRTL's emulation of Unix-style signals and kill()
*/
while (++mark <= sp) {
- I32 proc = SvIVx(*mark);
+ I32 proc;
register unsigned long int __vmssts;
+ SvGETMAGIC(*mark);
+ if (!(SvIOK(*mark) || SvNOK(*mark) || looks_like_number(*mark)))
+ Perl_croak(aTHX_ "Can't kill a non-numeric process ID");
+ proc = SvIV_nomg(*mark);
APPLY_TAINT_PROPER();
if (!((__vmssts = sys$delprc(&proc,0)) & 1)) {
tot--;
}
}
}
+ PERL_ASYNC_CHECK();
break;
}
#endif
if (val < 0) {
val = -val;
while (++mark <= sp) {
- const I32 proc = SvIVx(*mark);
+ I32 proc;
+ SvGETMAGIC(*mark);
+ if (!(SvIOK(*mark) || SvNOK(*mark) || looks_like_number(*mark)))
+ Perl_croak(aTHX_ "Can't kill a non-numeric process ID");
+ proc = SvIV_nomg(*mark);
APPLY_TAINT_PROPER();
#ifdef HAS_KILLPG
if (PerlProc_killpg(proc,val)) /* BSD */
}
else {
while (++mark <= sp) {
- const I32 proc = SvIVx(*mark);
+ I32 proc;
+ SvGETMAGIC(*mark);
+ if (!(SvIOK(*mark) || SvNOK(*mark) || looks_like_number(*mark)))
+ Perl_croak(aTHX_ "Can't kill a non-numeric process ID");
+ proc = SvIV_nomg(*mark);
APPLY_TAINT_PROPER();
if (PerlProc_kill(proc, val))
tot--;
}
}
+ PERL_ASYNC_CHECK();
break;
#endif
case OP_UNLINK:
else {
Zero(&utbuf, sizeof utbuf, char);
#ifdef HAS_FUTIMES
- utbuf[0].tv_sec = (long)SvIVx(accessed); /* time accessed */
+ utbuf[0].tv_sec = (long)SvIV(accessed); /* time accessed */
utbuf[0].tv_usec = 0;
- utbuf[1].tv_sec = (long)SvIVx(modified); /* time modified */
+ utbuf[1].tv_sec = (long)SvIV(modified); /* time modified */
utbuf[1].tv_usec = 0;
#elif defined(BIG_TIME)
- utbuf.actime = (Time_t)SvNVx(accessed); /* time accessed */
- utbuf.modtime = (Time_t)SvNVx(modified); /* time modified */
+ utbuf.actime = (Time_t)SvNV(accessed); /* time accessed */
+ utbuf.modtime = (Time_t)SvNV(modified); /* time modified */
#else
- utbuf.actime = (Time_t)SvIVx(accessed); /* time accessed */
- utbuf.modtime = (Time_t)SvIVx(modified); /* time modified */
+ utbuf.actime = (Time_t)SvIV(accessed); /* time accessed */
+ utbuf.modtime = (Time_t)SvIV(modified); /* time modified */
#endif
}
APPLY_TAINT_PROPER();
tot = sp - mark;
while (++mark <= sp) {
GV* gv;
- if (SvTYPE(*mark) == SVt_PVGV) {
- gv = (GV*)*mark;
- do_futimes:
+ if ((gv = MAYBE_DEREF_GV(*mark))) {
if (GvIO(gv) && IoIFP(GvIOp(gv))) {
#ifdef HAS_FUTIMES
APPLY_TAINT_PROPER();
- if (futimes(PerlIO_fileno(IoIFP(GvIOn(gv))), utbufp))
+ if (futimes(PerlIO_fileno(IoIFP(GvIOn(gv))),
+ (struct timeval *) utbufp))
tot--;
#else
Perl_die(aTHX_ PL_no_func, "futimes");
tot--;
}
}
- else if (SvROK(*mark) && SvTYPE(SvRV(*mark)) == SVt_PVGV) {
- gv = (GV*)SvRV(*mark);
- goto do_futimes;
- }
else {
- const char * const name = SvPV_nolen_const(*mark);
+ const char * const name = SvPV_nomg_const_nolen(*mark);
APPLY_TAINT_PROPER();
#ifdef HAS_FUTIMES
- if (utimes(name, utbufp))
+ if (utimes(name, (struct timeval *)utbufp))
#else
if (PerlLIO_utime(name, utbufp))
#endif
*/
{
dVAR;
+
+ PERL_ARGS_ASSERT_CANDO;
+
#ifdef DOSISH
/* [Comments and code from Len Reed]
* MS-DOS "user" is similar to UNIX's "superuser," but can't write
* to write-protected files. The execute permission bit is set
- * by the Miscrosoft C library stat() function for the following:
+ * by the Microsoft C library stat() function for the following:
* .exe files
* .com files
* .bat files
return (mode & statbufp->st_mode) ? TRUE : FALSE;
#else /* ! DOSISH */
+# ifdef __CYGWIN__
+ if (ingroup(544,effective)) { /* member of Administrators */
+# else
if ((effective ? PL_euid : PL_uid) == 0) { /* root is special */
+# endif
if (mode == S_IXUSR) {
if (statbufp->st_mode & 0111 || S_ISDIR(statbufp->st_mode))
return TRUE;
}
#endif /* ! VMS */
-bool
-Perl_ingroup(pTHX_ Gid_t testgid, bool effective)
+static bool
+S_ingroup(pTHX_ Gid_t testgid, bool effective)
{
-#ifdef MACOS_TRADITIONAL
- /* This is simply not correct for AppleShare, but fix it yerself. */
- return TRUE;
-#else
dVAR;
if (testgid == (effective ? PL_egid : PL_gid))
return TRUE;
#else
return FALSE;
#endif
-#endif
}
#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
{
dVAR;
const key_t key = (key_t)SvNVx(*++mark);
- const I32 n = (optype == OP_MSGGET) ? 0 : SvIVx(*++mark);
+ SV *nsv = optype == OP_MSGGET ? NULL : *++mark;
const I32 flags = SvIVx(*++mark);
+ PERL_ARGS_ASSERT_DO_IPCGET;
PERL_UNUSED_ARG(sp);
SETERRNO(0,0);
#endif
#ifdef HAS_SEM
case OP_SEMGET:
- return semget(key, n, flags);
+ return semget(key, (int) SvIV(nsv), flags);
#endif
#ifdef HAS_SHM
case OP_SHMGET:
- return shmget(key, n, flags);
+ return shmget(key, (size_t) SvUV(nsv), flags);
#endif
#if !defined(HAS_MSG) || !defined(HAS_SEM) || !defined(HAS_SHM)
default:
+ /* diag_listed_as: msg%s not implemented */
Perl_croak(aTHX_ "%s not implemented", PL_op_desc[optype]);
#endif
}
char *a;
I32 ret = -1;
const I32 id = SvIVx(*++mark);
+#ifdef Semctl
const I32 n = (optype == OP_SEMCTL) ? SvIVx(*++mark) : 0;
+#endif
const I32 cmd = SvIVx(*++mark);
SV * const astr = *++mark;
STRLEN infosize = 0;
I32 getinfo = (cmd == IPC_STAT);
+ PERL_ARGS_ASSERT_DO_IPCCTL;
PERL_UNUSED_ARG(sp);
switch (optype)
than guessing about u_?short(_t)? */
}
#else
+ /* diag_listed_as: sem%s not implemented */
Perl_croak(aTHX_ "%s not implemented", PL_op_desc[optype]);
#endif
break;
#endif
#if !defined(HAS_MSG) || !defined(HAS_SEM) || !defined(HAS_SHM)
default:
+ /* diag_listed_as: shm%s not implemented */
Perl_croak(aTHX_ "%s not implemented", PL_op_desc[optype]);
#endif
}
#endif
ret = Semctl(id, n, cmd, unsemds);
#else
+ /* diag_listed_as: sem%s not implemented */
Perl_croak(aTHX_ "%s not implemented", PL_op_desc[optype]);
#endif
}
const char * const mbuf = SvPV_const(mstr, len);
const I32 msize = len - sizeof(long);
+ PERL_ARGS_ASSERT_DO_MSGSND;
PERL_UNUSED_ARG(sp);
if (msize < 0)
SETERRNO(0,0);
return msgsnd(id, (struct msgbuf *)mbuf, msize, flags);
#else
+ PERL_UNUSED_ARG(sp);
+ PERL_UNUSED_ARG(mark);
+ /* diag_listed_as: msg%s not implemented */
Perl_croak(aTHX_ "msgsnd not implemented");
#endif
}
I32 msize, flags, ret;
const I32 id = SvIVx(*++mark);
SV * const mstr = *++mark;
+
+ PERL_ARGS_ASSERT_DO_MSGRCV;
PERL_UNUSED_ARG(sp);
/* suppress warning when reading into undef var --jhi */
if (! SvOK(mstr))
- sv_setpvn(mstr, "", 0);
+ sv_setpvs(mstr, "");
msize = SvIVx(*++mark);
mtype = (long)SvIVx(*++mark);
flags = SvIVx(*++mark);
}
return ret;
#else
+ PERL_UNUSED_ARG(sp);
+ PERL_UNUSED_ARG(mark);
+ /* diag_listed_as: msg%s not implemented */
Perl_croak(aTHX_ "msgrcv not implemented");
#endif
}
const I32 id = SvIVx(*++mark);
SV * const opstr = *++mark;
const char * const opbuf = SvPV_const(opstr, opsize);
+
+ PERL_ARGS_ASSERT_DO_SEMOP;
PERL_UNUSED_ARG(sp);
if (opsize < 3 * SHORTSIZE
return result;
}
#else
+ /* diag_listed_as: sem%s not implemented */
Perl_croak(aTHX_ "semop not implemented");
#endif
}
SV * const mstr = *++mark;
const I32 mpos = SvIVx(*++mark);
const I32 msize = SvIVx(*++mark);
+
+ PERL_ARGS_ASSERT_DO_SHMIO;
PERL_UNUSED_ARG(sp);
SETERRNO(0,0);
if (shmctl(id, IPC_STAT, &shmds) == -1)
return -1;
- if (mpos < 0 || msize < 0 || mpos + msize > shmds.shm_segsz) {
+ if (mpos < 0 || msize < 0
+ || (size_t)mpos + msize > (size_t)shmds.shm_segsz) {
SETERRNO(EFAULT,SS_ACCVIO); /* can't do as caller requested */
return -1;
}
if (shm == (char *)-1) /* I hate System V IPC, I really do */
return -1;
if (optype == OP_SHMREAD) {
- const char *mbuf;
+ char *mbuf;
/* suppress warning when reading into undef var (tchrist 3/Mar/00) */
if (! SvOK(mstr))
- sv_setpvn(mstr, "", 0);
- SvPV_force_nolen(mstr);
- mbuf = SvGROW(mstr, msize+1);
+ sv_setpvs(mstr, "");
+ sv_upgrade(mstr, SVt_PV);
+ SvPOK_only(mstr);
+ mbuf = SvGROW(mstr, (STRLEN)msize+1);
Copy(shm + mpos, mbuf, msize, char);
SvCUR_set(mstr, msize);
#endif
}
else {
- I32 n;
STRLEN len;
const char *mbuf = SvPV_const(mstr, len);
- if ((n = len) > msize)
- n = msize;
+ const I32 n = ((I32)len > msize) ? msize : (I32)len;
Copy(mbuf, shm + mpos, n, char);
if (n < msize)
memzero(shm + mpos + n, msize - n);
}
return shmdt(shm);
#else
+ /* diag_listed_as: shm%s not implemented */
Perl_croak(aTHX_ "shm I/O not implemented");
#endif
}
dVAR;
SV * const tmpcmd = newSV(0);
PerlIO *fp;
+
+ PERL_ARGS_ASSERT_START_GLOB;
+
ENTER;
SAVEFREESV(tmpcmd);
#ifdef VMS /* expand the wildcards right here, rather than opening a pipe, */
fp = Perl_vms_start_glob(aTHX_ tmpglob, io);
#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 ");
#endif
#endif /* !CSH */
#endif /* !DOSISH */
-#endif /* MACOS_TRADITIONAL */
+ save_hash(gv_fetchpvs("ENV", 0, SVt_PVHV));
(void)do_open(PL_last_in_gv, (char*)SvPVX_const(tmpcmd), SvCUR(tmpcmd),
FALSE, O_RDONLY, 0, NULL);
fp = IoIFP(io);
https://perl5.git.perl.org / perl5.git / blobdiff