#endif
#ifdef DEBUGGING
if ((SSize_t)size < 0)
- Perl_croak_nocontext("panic: malloc, size=%"UVuf, (UV) size);
+ Perl_croak_nocontext("panic: malloc, size=%" UVuf, (UV) size);
#endif
if (!size) size = 1; /* malloc(0) is NASTY on our system */
#ifdef PERL_DEBUG_READONLY_COW
header->size = size;
#endif
ptr = (Malloc_t)((char*)ptr+PERL_MEMORY_DEBUG_HEADER_SIZE);
- DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%"UVxf": (%05ld) malloc %ld bytes\n",PTR2UV(ptr),(long)PL_an++,(long)size));
+ DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%" UVxf ": (%05ld) malloc %ld bytes\n",PTR2UV(ptr),(long)PL_an++,(long)size));
}
else {
? ((struct perl_memory_debug_header *)((char *)where - PERL_MEMORY_DEBUG_HEADER_SIZE))->size
: 0;
#endif
-#if !defined(STANDARD_C) && !defined(HAS_REALLOC_PROTOTYPE) && !defined(PERL_MICRO)
- Malloc_t PerlMem_realloc();
-#endif /* !defined(STANDARD_C) && !defined(HAS_REALLOC_PROTOTYPE) */
if (!size) {
safesysfree(where);
#endif
#ifdef DEBUGGING
if ((SSize_t)size < 0)
- Perl_croak_nocontext("panic: realloc, size=%"UVuf, (UV)size);
+ Perl_croak_nocontext("panic: realloc, size=%" UVuf, (UV)size);
#endif
#ifdef PERL_DEBUG_READONLY_COW
if ((ptr = mmap(0, size, PROT_READ|PROT_WRITE,
/* In particular, must do that fixup above before logging anything via
*printf(), as it can reallocate memory, which can cause SEGVs. */
- DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%"UVxf": (%05ld) rfree\n",PTR2UV(where),(long)PL_an++));
- DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%"UVxf": (%05ld) realloc %ld bytes\n",PTR2UV(ptr),(long)PL_an++,(long)size));
+ DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%" UVxf ": (%05ld) rfree\n",PTR2UV(where),(long)PL_an++));
+ DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%" UVxf ": (%05ld) realloc %ld bytes\n",PTR2UV(ptr),(long)PL_an++,(long)size));
if (ptr == NULL) {
#ifdef USE_MDH
#ifdef ALWAYS_NEED_THX
dTHX;
#endif
- DEBUG_m( PerlIO_printf(Perl_debug_log, "0x%"UVxf": (%05ld) free\n",PTR2UV(where),(long)PL_an++));
+ DEBUG_m( PerlIO_printf(Perl_debug_log, "0x%" UVxf ": (%05ld) free\n",PTR2UV(where),(long)PL_an++));
if (where) {
#ifdef USE_MDH
Malloc_t where_intrn = (Malloc_t)((char*)where-PERL_MEMORY_DEBUG_HEADER_SIZE);
#endif
#ifdef DEBUGGING
if ((SSize_t)size < 0 || (SSize_t)count < 0)
- Perl_croak_nocontext("panic: calloc, size=%"UVuf", count=%"UVuf,
+ Perl_croak_nocontext("panic: calloc, size=%" UVuf ", count=%" UVuf,
(UV)size, (UV)count);
#endif
#ifdef PERL_DEBUG_READONLY_COW
ptr = (Malloc_t)PerlMem_calloc(count ? count : 1, size ? size : 1);
#endif
PERL_ALLOC_CHECK(ptr);
- DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%"UVxf": (%05ld) calloc %ld x %ld bytes\n",PTR2UV(ptr),(long)PL_an++,(long)count,(long)total_size));
+ DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%" UVxf ": (%05ld) calloc %zu x %zu = %zu bytes\n",PTR2UV(ptr),(long)PL_an++, count, size, total_size));
if (ptr != NULL) {
#ifdef USE_MDH
{
#endif
-/* copy a string up to some (non-backslashed) delimiter, if any */
+/* copy a string up to some (non-backslashed) delimiter, if any.
+ * With allow_escape, converts \<delimiter> to <delimiter>, while leaves
+ * \<non-delimiter> as-is.
+ * Returns the position in the src string of the closing delimiter, if
+ * any, or returns fromend otherwise.
+ * This is the internal implementation for Perl_delimcpy and
+ * Perl_delimcpy_no_escape.
+ */
-char *
-Perl_delimcpy(char *to, const char *toend, const char *from, const char *fromend, int delim, I32 *retlen)
+static char *
+S_delimcpy_intern(char *to, const char *toend, const char *from,
+ const char *fromend, int delim, I32 *retlen,
+ const bool allow_escape)
{
I32 tolen;
PERL_ARGS_ASSERT_DELIMCPY;
for (tolen = 0; from < fromend; from++, tolen++) {
- if (*from == '\\') {
+ if (allow_escape && *from == '\\' && from + 1 < fromend) {
if (from[1] != delim) {
if (to < toend)
*to++ = *from;
return (char *)from;
}
-/* return ptr to little string in big string, NULL if not found */
-/* This routine was donated by Corey Satten. */
-
char *
-Perl_instr(const char *big, const char *little)
+Perl_delimcpy(char *to, const char *toend, const char *from, const char *fromend, int delim, I32 *retlen)
{
+ PERL_ARGS_ASSERT_DELIMCPY;
+
+ return S_delimcpy_intern(to, toend, from, fromend, delim, retlen, 1);
+}
- PERL_ARGS_ASSERT_INSTR;
+char *
+Perl_delimcpy_no_escape(char *to, const char *toend, const char *from,
+ const char *fromend, int delim, I32 *retlen)
+{
+ PERL_ARGS_ASSERT_DELIMCPY_NO_ESCAPE;
- return strstr((char*)big, (char*)little);
+ return S_delimcpy_intern(to, toend, from, fromend, delim, retlen, 0);
}
-/* same as instr but allow embedded nulls. The end pointers point to 1 beyond
- * the final character desired to be checked */
+/*
+=head1 Miscellaneous Functions
+
+=for apidoc Am|char *|ninstr|char * big|char * bigend|char * little|char * little_end
+
+Find the first (leftmost) occurrence of a sequence of bytes within another
+sequence. This is the Perl version of C<strstr()>, extended to handle
+arbitrary sequences, potentially containing embedded C<NUL> characters (C<NUL>
+is what the initial C<n> in the function name stands for; some systems have an
+equivalent, C<memmem()>, but with a somewhat different API).
+
+Another way of thinking about this function is finding a needle in a haystack.
+C<big> points to the first byte in the haystack. C<big_end> points to one byte
+beyond the final byte in the haystack. C<little> points to the first byte in
+the needle. C<little_end> points to one byte beyond the final byte in the
+needle. All the parameters must be non-C<NULL>.
+
+The function returns C<NULL> if there is no occurrence of C<little> within
+C<big>. If C<little> is the empty string, C<big> is returned.
+
+Because this function operates at the byte level, and because of the inherent
+characteristics of UTF-8 (or UTF-EBCDIC), it will work properly if both the
+needle and the haystack are strings with the same UTF-8ness, but not if the
+UTF-8ness differs.
+
+=cut
+
+*/
char *
Perl_ninstr(const char *big, const char *bigend, const char *little, const char *lend)
{
PERL_ARGS_ASSERT_NINSTR;
+
+#ifdef HAS_MEMMEM
+ return ninstr(big, bigend, little, lend);
+#else
+
if (little >= lend)
return (char*)big;
{
const char first = *little;
- const char *s, *x;
bigend -= lend - little++;
OUTER:
while (big <= bigend) {
if (*big++ == first) {
+ const char *s, *x;
for (x=big,s=little; s < lend; x++,s++) {
if (*s != *x)
goto OUTER;
}
}
return NULL;
+
+#endif
+
}
-/* reverse of the above--find last substring */
+/*
+=head1 Miscellaneous Functions
+
+=for apidoc Am|char *|rninstr|char * big|char * bigend|char * little|char * little_end
+
+Like C<L</ninstr>>, but instead finds the final (rightmost) occurrence of a
+sequence of bytes within another sequence, returning C<NULL> if there is no
+such occurrence.
+
+=cut
+
+*/
char *
Perl_rninstr(const char *big, const char *bigend, const char *little, const char *lend)
=for apidoc fbm_compile
-Analyses the string in order to make fast searches on it using C<fbm_instr()>
+Analyzes the string in order to make fast searches on it using C<fbm_instr()>
-- the Boyer-Moore algorithm.
=cut
SvUPGRADE(sv, SVt_PVMG);
SvIOK_off(sv);
SvNOK_off(sv);
- SvVALID_on(sv);
-
- /* "deep magic", the comment used to add. The use of MAGIC itself isn't
- really. MAGIC was originally added in 79072805bf63abe5 (perl 5.0 alpha 2)
- to call SvVALID_off() if the scalar was assigned to.
-
- The comment itself (and "deeper magic" below) date back to
- 378cc40b38293ffc (perl 2.0). "deep magic" was an annotation on
- str->str_pok |= 2;
- where the magic (presumably) was that the scalar had a BM table hidden
- inside itself.
- As MAGIC is always present on BMs [in Perl 5 :-)], we can use it to store
- the table instead of the previous (somewhat hacky) approach of co-opting
- the string buffer and storing it after the string. */
+ /* add PERL_MAGIC_bm magic holding the FBM lookup table */
assert(!mg_find(sv, PERL_MAGIC_bm));
mg = sv_magicext(sv, NULL, PERL_MAGIC_bm, &PL_vtbl_bm, NULL, 0);
}
}
BmUSEFUL(sv) = 100; /* Initial value */
- if (flags & FBMcf_TAIL)
- SvTAIL_on(sv);
- DEBUG_r(PerlIO_printf(Perl_debug_log, "rarest char %c at %"UVuf"\n",
+ ((XPVNV*)SvANY(sv))->xnv_u.xnv_bm_tail = cBOOL(flags & FBMcf_TAIL);
+ DEBUG_r(PerlIO_printf(Perl_debug_log, "rarest char %c at %" UVuf "\n",
s[rarest], (UV)rarest));
}
const unsigned char *little = (const unsigned char *)SvPV_const(littlestr,l);
STRLEN littlelen = l;
const I32 multiline = flags & FBMrf_MULTILINE;
+ bool valid = SvVALID(littlestr);
+ bool tail = valid ? cBOOL(SvTAIL(littlestr)) : FALSE;
PERL_ARGS_ASSERT_FBM_INSTR;
+ assert(bigend >= big);
+
if ((STRLEN)(bigend - big) < littlelen) {
- if ( SvTAIL(littlestr)
+ if ( tail
&& ((STRLEN)(bigend - big) == littlelen - 1)
&& (littlelen == 1
|| (*big == *little &&
return (char*)big; /* Cannot be SvTAIL! */
case 1:
- if (SvTAIL(littlestr) && !multiline) /* Anchor only! */
+ if (tail && !multiline) /* Anchor only! */
/* [-1] is safe because we know that bigend != big. */
return (char *) (bigend - (bigend[-1] == '\n'));
s = (unsigned char *)memchr((void*)big, *little, bigend-big);
if (s)
return (char *)s;
- if (SvTAIL(littlestr))
+ if (tail)
return (char *) bigend;
return NULL;
case 2:
- if (SvTAIL(littlestr) && !multiline) {
+ if (tail && !multiline) {
/* a littlestr with SvTAIL must be of the form "X\n" (where X
* is a single char). It is anchored, and can only match
* "....X\n" or "....X" */
/* failed to find 2 chars; try anchored match at end without
* the \n */
- if (SvTAIL(littlestr) && bigend[0] == little[0])
+ if (tail && bigend[0] == little[0])
return (char *)bigend;
return NULL;
}
break; /* Only lengths 0 1 and 2 have special-case code. */
}
- if (SvTAIL(littlestr) && !multiline) { /* tail anchored? */
+ if (tail && !multiline) { /* tail anchored? */
s = bigend - littlelen;
if (s >= big && bigend[-1] == '\n' && *s == *little
/* Automatically of length > 2 */
return NULL;
}
- if (!SvVALID(littlestr)) {
+ if (!valid) {
/* not compiled; use Perl_ninstr() instead */
char * const b = ninstr((char*)big,(char*)bigend,
(char*)little, (char*)little + littlelen);
- if (!b && SvTAIL(littlestr)) { /* Automatically multiline! */
- /* Chop \n from littlestr: */
- s = bigend - littlelen + 1;
- if (*s == *little
- && memEQ((char*)s + 1, (char*)little + 1, littlelen - 2))
- {
- return (char*)s;
- }
- return NULL;
- }
+ assert(!tail); /* valid => FBM; tail only set on SvVALID SVs */
return b;
}
}
check_end:
if ( s == bigend
- && SvTAIL(littlestr)
+ && tail
&& memEQ((char *)(bigend - littlelen),
(char *)(oldlittle - littlelen), littlelen) )
return (char*)bigend - littlelen;
}
}
-
-/*
-=for apidoc foldEQ
-
-Returns true if the leading C<len> bytes of the strings C<s1> and C<s2> are the
-same
-case-insensitively; false otherwise. Uppercase and lowercase ASCII range bytes
-match themselves and their opposite case counterparts. Non-cased and non-ASCII
-range bytes match only themselves.
-
-=cut
-*/
-
-
-I32
-Perl_foldEQ(const char *s1, const char *s2, I32 len)
-{
- const U8 *a = (const U8 *)s1;
- const U8 *b = (const U8 *)s2;
-
- PERL_ARGS_ASSERT_FOLDEQ;
-
- assert(len >= 0);
-
- while (len--) {
- if (*a != *b && *a != PL_fold[*b])
- return 0;
- a++,b++;
- }
- return 1;
-}
-I32
-Perl_foldEQ_latin1(const char *s1, const char *s2, I32 len)
-{
- /* Compare non-utf8 using Unicode (Latin1) semantics. Does not work on
- * MICRO_SIGN, LATIN_SMALL_LETTER_SHARP_S, nor
- * LATIN_SMALL_LETTER_Y_WITH_DIAERESIS, and does not check for these. Nor
- * does it check that the strings each have at least 'len' characters */
-
- const U8 *a = (const U8 *)s1;
- const U8 *b = (const U8 *)s2;
-
- PERL_ARGS_ASSERT_FOLDEQ_LATIN1;
-
- assert(len >= 0);
-
- while (len--) {
- if (*a != *b && *a != PL_fold_latin1[*b]) {
- return 0;
- }
- a++, b++;
- }
- return 1;
-}
-
-/*
-=for apidoc foldEQ_locale
-
-Returns true if the leading C<len> bytes of the strings C<s1> and C<s2> are the
-same case-insensitively in the current locale; false otherwise.
-
-=cut
-*/
-
-I32
-Perl_foldEQ_locale(const char *s1, const char *s2, I32 len)
-{
- dVAR;
- const U8 *a = (const U8 *)s1;
- const U8 *b = (const U8 *)s2;
-
- PERL_ARGS_ASSERT_FOLDEQ_LOCALE;
-
- assert(len >= 0);
-
- while (len--) {
- if (*a != *b && *a != PL_fold_locale[*b])
- return 0;
- a++,b++;
- }
- return 1;
-}
-
/* copy a string to a safe spot */
/*
* from the sibling of PL_curcop.
*/
- const COP *cop =
- closest_cop(PL_curcop, OpSIBLING(PL_curcop), PL_op, FALSE);
- if (!cop)
- cop = PL_curcop;
+ if (PL_curcop) {
+ const COP *cop =
+ closest_cop(PL_curcop, OpSIBLING(PL_curcop), PL_op, FALSE);
+ if (!cop)
+ cop = PL_curcop;
+
+ if (CopLINE(cop))
+ Perl_sv_catpvf(aTHX_ sv, " at %s line %" IVdf,
+ OutCopFILE(cop), (IV)CopLINE(cop));
+ }
- if (CopLINE(cop))
- Perl_sv_catpvf(aTHX_ sv, " at %s line %"IVdf,
- OutCopFILE(cop), (IV)CopLINE(cop));
/* Seems that GvIO() can be untrustworthy during global destruction. */
if (GvIO(PL_last_in_gv) && (SvTYPE(GvIOp(PL_last_in_gv)) == SVt_PVIO)
&& IoLINES(GvIOp(PL_last_in_gv)))
STRLEN l;
const bool line_mode = (RsSIMPLE(PL_rs) &&
*SvPV_const(PL_rs,l) == '\n' && l == 1);
- Perl_sv_catpvf(aTHX_ sv, ", <%"SVf"> %s %"IVdf,
+ Perl_sv_catpvf(aTHX_ sv, ", <%" SVf "> %s %" IVdf,
SVfARG(PL_last_in_gv == PL_argvgv
? &PL_sv_no
: sv_2mortal(newSVhek(GvNAME_HEK(PL_last_in_gv)))),
STATIC bool
S_invoke_exception_hook(pTHX_ SV *ex, bool warn)
{
+ dVAR;
HV *stash;
GV *gv;
CV *cv;
/* sv_2cv might call Perl_croak() or Perl_warner() */
SV * const oldhook = *hook;
- if (!oldhook)
+ if (!oldhook || oldhook == PERL_WARNHOOK_FATAL)
return FALSE;
ENTER;
=cut
*/
-#ifdef _MSC_VER
-# pragma warning( push )
-# pragma warning( disable : 4646 ) /* warning C4646: function declared with
- __declspec(noreturn) has non-void return type */
-# pragma warning( disable : 4645 ) /* warning C4645: function declared with
-__declspec(noreturn) has a return statement */
-#endif
+/* silence __declspec(noreturn) warnings */
+MSVC_DIAG_IGNORE(4646 4645)
OP *
Perl_die_sv(pTHX_ SV *baseex)
{
/* NOTREACHED */
NORETURN_FUNCTION_END;
}
-#ifdef _MSC_VER
-# pragma warning( pop )
-#endif
+MSVC_DIAG_RESTORE
/*
=for apidoc Am|OP *|die|const char *pat|...
*/
#if defined(PERL_IMPLICIT_CONTEXT)
-#ifdef _MSC_VER
-# pragma warning( push )
-# pragma warning( disable : 4646 ) /* warning C4646: function declared with
- __declspec(noreturn) has non-void return type */
-# pragma warning( disable : 4645 ) /* warning C4645: function declared with
-__declspec(noreturn) has a return statement */
-#endif
+
+/* silence __declspec(noreturn) warnings */
+MSVC_DIAG_IGNORE(4646 4645)
OP *
Perl_die_nocontext(const char* pat, ...)
{
va_end(args);
NORETURN_FUNCTION_END;
}
-#ifdef _MSC_VER
-# pragma warning( pop )
-#endif
+MSVC_DIAG_RESTORE
+
#endif /* PERL_IMPLICIT_CONTEXT */
-#ifdef _MSC_VER
-# pragma warning( push )
-# pragma warning( disable : 4646 ) /* warning C4646: function declared with
- __declspec(noreturn) has non-void return type */
-# pragma warning( disable : 4645 ) /* warning C4645: function declared with
-__declspec(noreturn) has a return statement */
-#endif
+/* silence __declspec(noreturn) warnings */
+MSVC_DIAG_IGNORE(4646 4645)
OP *
Perl_die(pTHX_ const char* pat, ...)
{
va_end(args);
NORETURN_FUNCTION_END;
}
-#ifdef _MSC_VER
-# pragma warning( pop )
-#endif
+MSVC_DIAG_RESTORE
/*
=for apidoc Am|void|croak_sv|SV *baseex
Copy(val, s+(nlen+1), vlen, char); \
*(s+(nlen+1+vlen)) = '\0'
+
+
#ifdef USE_ENVIRON_ARRAY
- /* VMS' my_setenv() is in vms.c */
-#if !defined(WIN32) && !defined(NETWARE)
+/* NB: VMS' my_setenv() is in vms.c */
+
+/* Configure doesn't test for HAS_SETENV yet, so decide based on platform.
+ * For Solaris, setenv() and unsetenv() were introduced in Solaris 9, so
+ * testing for HAS UNSETENV is sufficient.
+ */
+# if defined(__CYGWIN__)|| defined(__SYMBIAN32__) || defined(__riscos__) || (defined(__sun) && defined(HAS_UNSETENV)) || defined(PERL_DARWIN)
+# define MY_HAS_SETENV
+# endif
+
+/* small wrapper for use by Perl_my_setenv that mallocs, or reallocs if
+ * 'current' is non-null, with up to three sizes that are added together.
+ * It handles integer overflow.
+ */
+# ifndef MY_HAS_SETENV
+static char *
+S_env_alloc(void *current, Size_t l1, Size_t l2, Size_t l3, Size_t size)
+{
+ void *p;
+ Size_t sl, l = l1 + l2;
+
+ if (l < l2)
+ goto panic;
+ l += l3;
+ if (l < l3)
+ goto panic;
+ sl = l * size;
+ if (sl < l)
+ goto panic;
+
+ p = current
+ ? safesysrealloc(current, sl)
+ : safesysmalloc(sl);
+ if (p)
+ return (char*)p;
+
+ panic:
+ croak_memory_wrap();
+}
+# endif
+
+
+# if !defined(WIN32) && !defined(NETWARE)
+
void
Perl_my_setenv(pTHX_ const char *nam, const char *val)
{
dVAR;
-#ifdef __amigaos4__
+# ifdef __amigaos4__
amigaos4_obtain_environ(__FUNCTION__);
-#endif
-#ifdef USE_ITHREADS
+# endif
+
+# ifdef USE_ITHREADS
/* only parent thread can modify process environment */
if (PL_curinterp == aTHX)
-#endif
+# endif
{
-#ifndef PERL_USE_SAFE_PUTENV
+
+# ifndef PERL_USE_SAFE_PUTENV
if (!PL_use_safe_putenv) {
/* most putenv()s leak, so we manipulate environ directly */
- I32 i;
- const I32 len = strlen(nam);
- int nlen, vlen;
+ UV i;
+ Size_t vlen, nlen = strlen(nam);
/* where does it go? */
for (i = 0; environ[i]; i++) {
- if (strnEQ(environ[i],nam,len) && environ[i][len] == '=')
+ if (strnEQ(environ[i], nam, nlen) && environ[i][nlen] == '=')
break;
}
if (environ == PL_origenviron) { /* need we copy environment? */
- I32 j;
- I32 max;
+ UV j, max;
char **tmpenv;
max = i;
while (environ[max])
max++;
- tmpenv = (char**)safesysmalloc((max+2) * sizeof(char*));
+
+ /* XXX shouldn't that be max+1 rather than max+2 ??? - DAPM */
+ tmpenv = (char**)S_env_alloc(NULL, max, 2, 0, sizeof(char*));
+
for (j=0; j<max; j++) { /* copy environment */
- const int len = strlen(environ[j]);
- tmpenv[j] = (char*)safesysmalloc((len+1)*sizeof(char));
+ const Size_t len = strlen(environ[j]);
+ tmpenv[j] = S_env_alloc(NULL, len, 1, 0, 1);
Copy(environ[j], tmpenv[j], len+1, char);
}
+
tmpenv[max] = NULL;
environ = tmpenv; /* tell exec where it is now */
}
+
if (!val) {
safesysfree(environ[i]);
while (environ[i]) {
environ[i] = environ[i+1];
i++;
}
-#ifdef __amigaos4__
+# ifdef __amigaos4__
goto my_setenv_out;
-#else
+# else
return;
-#endif
+# endif
}
+
if (!environ[i]) { /* does not exist yet */
- environ = (char**)safesysrealloc(environ, (i+2) * sizeof(char*));
+ environ = (char**)S_env_alloc(environ, i, 2, 0, sizeof(char*));
environ[i+1] = NULL; /* make sure it's null terminated */
}
else
safesysfree(environ[i]);
- nlen = strlen(nam);
+
vlen = strlen(val);
- environ[i] = (char*)safesysmalloc((nlen+vlen+2) * sizeof(char));
+ environ[i] = S_env_alloc(NULL, nlen, vlen, 2, 1);
/* all that work just for this */
my_setenv_format(environ[i], nam, nlen, val, vlen);
- } else {
-# endif
- /* This next branch should only be called #if defined(HAS_SETENV), but
- Configure doesn't test for that yet. For Solaris, setenv() and unsetenv()
- were introduced in Solaris 9, so testing for HAS UNSETENV is sufficient.
- */
-# if defined(__CYGWIN__)|| defined(__SYMBIAN32__) || defined(__riscos__) || (defined(__sun) && defined(HAS_UNSETENV)) || defined(PERL_DARWIN)
-# if defined(HAS_UNSETENV)
+ }
+ else {
+
+# endif /* !PERL_USE_SAFE_PUTENV */
+
+# ifdef MY_HAS_SETENV
+# if defined(HAS_UNSETENV)
if (val == NULL) {
(void)unsetenv(nam);
} else {
(void)setenv(nam, val, 1);
}
-# else /* ! HAS_UNSETENV */
+# else /* ! HAS_UNSETENV */
(void)setenv(nam, val, 1);
-# endif /* HAS_UNSETENV */
-# else
-# if defined(HAS_UNSETENV)
+# endif /* HAS_UNSETENV */
+
+# elif defined(HAS_UNSETENV)
+
if (val == NULL) {
if (environ) /* old glibc can crash with null environ */
(void)unsetenv(nam);
} else {
- const int nlen = strlen(nam);
- const int vlen = strlen(val);
- char * const new_env =
- (char*)safesysmalloc((nlen + vlen + 2) * sizeof(char));
+ const Size_t nlen = strlen(nam);
+ const Size_t vlen = strlen(val);
+ char * const new_env = S_env_alloc(NULL, nlen, vlen, 2, 1);
my_setenv_format(new_env, nam, nlen, val, vlen);
(void)putenv(new_env);
}
-# else /* ! HAS_UNSETENV */
+
+# else /* ! HAS_UNSETENV */
+
char *new_env;
- const int nlen = strlen(nam);
- int vlen;
+ const Size_t nlen = strlen(nam);
+ Size_t vlen;
if (!val) {
val = "";
}
vlen = strlen(val);
- new_env = (char*)safesysmalloc((nlen + vlen + 2) * sizeof(char));
+ new_env = S_env_alloc(NULL, nlen, vlen, 2, 1);
/* all that work just for this */
my_setenv_format(new_env, nam, nlen, val, vlen);
(void)putenv(new_env);
-# endif /* HAS_UNSETENV */
-# endif /* __CYGWIN__ */
-#ifndef PERL_USE_SAFE_PUTENV
+
+# endif /* MY_HAS_SETENV */
+
+# ifndef PERL_USE_SAFE_PUTENV
}
-#endif
+# endif
}
-#ifdef __amigaos4__
+
+# ifdef __amigaos4__
my_setenv_out:
amigaos4_release_environ(__FUNCTION__);
-#endif
+# endif
}
-#else /* WIN32 || NETWARE */
+# else /* WIN32 || NETWARE */
void
Perl_my_setenv(pTHX_ const char *nam, const char *val)
{
dVAR;
char *envstr;
- const int nlen = strlen(nam);
- int vlen;
+ const Size_t nlen = strlen(nam);
+ Size_t vlen;
if (!val) {
val = "";
}
vlen = strlen(val);
- Newx(envstr, nlen+vlen+2, char);
+ envstr = S_env_alloc(NULL, nlen, vlen, 2, 1);
my_setenv_format(envstr, nam, nlen, val, vlen);
(void)PerlEnv_putenv(envstr);
Safefree(envstr);
}
-#endif /* WIN32 || NETWARE */
+# endif /* WIN32 || NETWARE */
+
+#endif /* USE_ENVIRON_ARRAY */
+
+
-#endif /* !VMS */
#ifdef UNLINK_ALL_VERSIONS
I32
}
#endif
-/* this is a drop-in replacement for bcopy(), except for the return
- * value, which we need to be able to emulate memcpy() */
-#if !defined(HAS_MEMCPY) || (!defined(HAS_MEMMOVE) && !defined(HAS_SAFE_MEMCPY))
-void *
-Perl_my_bcopy(const void *vfrom, void *vto, size_t len)
-{
-#if defined(HAS_BCOPY) && defined(HAS_SAFE_BCOPY)
- bcopy(vfrom, vto, len);
-#else
- const unsigned char *from = (const unsigned char *)vfrom;
- unsigned char *to = (unsigned char *)vto;
-
- PERL_ARGS_ASSERT_MY_BCOPY;
-
- if (from - to >= 0) {
- while (len--)
- *to++ = *from++;
- }
- else {
- to += len;
- from += len;
- while (len--)
- *(--to) = *(--from);
- }
-#endif
-
- return vto;
-}
-#endif
-
-/* this is a drop-in replacement for memset() */
-#ifndef HAS_MEMSET
-void *
-Perl_my_memset(void *vloc, int ch, size_t len)
-{
- unsigned char *loc = (unsigned char *)vloc;
-
- PERL_ARGS_ASSERT_MY_MEMSET;
-
- while (len--)
- *loc++ = ch;
- return vloc;
-}
-#endif
-
-/* this is a drop-in replacement for bzero() */
-#if !defined(HAS_BZERO) && !defined(HAS_MEMSET)
-void *
-Perl_my_bzero(void *vloc, size_t len)
-{
- unsigned char *loc = (unsigned char *)vloc;
-
- PERL_ARGS_ASSERT_MY_BZERO;
-
- while (len--)
- *loc++ = 0;
- return vloc;
-}
-#endif
-
-/* this is a drop-in replacement for memcmp() */
-#if !defined(HAS_MEMCMP) || !defined(HAS_SANE_MEMCMP)
-int
-Perl_my_memcmp(const void *vs1, const void *vs2, size_t len)
-{
- const U8 *a = (const U8 *)vs1;
- const U8 *b = (const U8 *)vs2;
- int tmp;
-
- PERL_ARGS_ASSERT_MY_MEMCMP;
-
- while (len--) {
- if ((tmp = *a++ - *b++))
- return tmp;
- }
- return 0;
-}
-#endif /* !HAS_MEMCMP || !HAS_SANE_MEMCMP */
-
-#ifndef HAS_VPRINTF
-/* This vsprintf replacement should generally never get used, since
- vsprintf was available in both System V and BSD 2.11. (There may
- be some cross-compilation or embedded set-ups where it is needed,
- however.)
-
- If you encounter a problem in this function, it's probably a symptom
- that Configure failed to detect your system's vprintf() function.
- See the section on "item vsprintf" in the INSTALL file.
-
- This version may compile on systems with BSD-ish <stdio.h>,
- but probably won't on others.
-*/
-
-#ifdef USE_CHAR_VSPRINTF
-char *
-#else
-int
-#endif
-vsprintf(char *dest, const char *pat, void *args)
-{
- FILE fakebuf;
-
-#if defined(STDIO_PTR_LVALUE) && defined(STDIO_CNT_LVALUE)
- FILE_ptr(&fakebuf) = (STDCHAR *) dest;
- FILE_cnt(&fakebuf) = 32767;
-#else
- /* These probably won't compile -- If you really need
- this, you'll have to figure out some other method. */
- fakebuf._ptr = dest;
- fakebuf._cnt = 32767;
-#endif
-#ifndef _IOSTRG
-#define _IOSTRG 0
-#endif
- fakebuf._flag = _IOWRT|_IOSTRG;
- _doprnt(pat, args, &fakebuf); /* what a kludge */
-#if defined(STDIO_PTR_LVALUE)
- *(FILE_ptr(&fakebuf)++) = '\0';
-#else
- /* PerlIO has probably #defined away fputc, but we want it here. */
-# ifdef fputc
-# undef fputc /* XXX Should really restore it later */
-# endif
- (void)fputc('\0', &fakebuf);
-#endif
-#ifdef USE_CHAR_VSPRINTF
- return(dest);
-#else
- return 0; /* perl doesn't use return value */
-#endif
-}
-
-#endif /* HAS_VPRINTF */
-
PerlIO *
Perl_my_popen_list(pTHX_ const char *mode, int n, SV **args)
{
taint_env();
taint_proper("Insecure %s%s", "EXEC");
}
- if (PerlProc_pipe(p) < 0)
+ if (PerlProc_pipe_cloexec(p) < 0)
return NULL;
/* Try for another pipe pair for error return */
- if (PerlProc_pipe(pp) >= 0)
+ if (PerlProc_pipe_cloexec(pp) >= 0)
did_pipes = 1;
while ((pid = PerlProc_fork()) < 0) {
if (errno != EAGAIN) {
#define THIS that
#define THAT This
/* Close parent's end of error status pipe (if any) */
- if (did_pipes) {
+ if (did_pipes)
PerlLIO_close(pp[0]);
-#if defined(HAS_FCNTL) && defined(F_SETFD) && defined(FD_CLOEXEC)
- /* Close error pipe automatically if exec works */
- if (fcntl(pp[1], F_SETFD, FD_CLOEXEC) < 0)
- return NULL;
-#endif
- }
/* Now dup our end of _the_ pipe to right position */
if (p[THIS] != (*mode == 'r')) {
PerlLIO_dup2(p[THIS], *mode == 'r');
if (p[THAT] != (*mode == 'r')) /* if dup2() didn't close it */
PerlLIO_close(p[THAT]); /* close parent's end of _the_ pipe */
}
- else
+ else {
+ setfd_cloexec_or_inhexec_by_sysfdness(p[THIS]);
PerlLIO_close(p[THAT]); /* close parent's end of _the_ pipe */
+ }
#if !defined(HAS_FCNTL) || !defined(F_SETFD)
/* No automatic close - do it by hand */
# ifndef NOFILE
#undef THAT
}
/* Parent */
- do_execfree(); /* free any memory malloced by child on fork */
if (did_pipes)
PerlLIO_close(pp[1]);
/* Keep the lower of the two fd numbers */
if (p[that] < p[This]) {
- PerlLIO_dup2(p[This], p[that]);
+ PerlLIO_dup2_cloexec(p[This], p[that]);
PerlLIO_close(p[This]);
p[This] = p[that];
}
if (did_pipes && pid > 0) {
int errkid;
unsigned n = 0;
- SSize_t n1;
while (n < sizeof(int)) {
- n1 = PerlLIO_read(pp[0],
+ const SSize_t n1 = PerlLIO_read(pp[0],
(void*)(((char*)&errkid)+n),
(sizeof(int)) - n);
if (n1 <= 0)
taint_env();
taint_proper("Insecure %s%s", "EXEC");
}
- if (PerlProc_pipe(p) < 0)
+ if (PerlProc_pipe_cloexec(p) < 0)
return NULL;
- if (doexec && PerlProc_pipe(pp) >= 0)
+ if (doexec && PerlProc_pipe_cloexec(pp) >= 0)
did_pipes = 1;
while ((pid = PerlProc_fork()) < 0) {
if (errno != EAGAIN) {
#undef THAT
#define THIS that
#define THAT This
- if (did_pipes) {
+ if (did_pipes)
PerlLIO_close(pp[0]);
-#if defined(HAS_FCNTL) && defined(F_SETFD)
- if (fcntl(pp[1], F_SETFD, FD_CLOEXEC) < 0)
- return NULL;
-#endif
- }
if (p[THIS] != (*mode == 'r')) {
PerlLIO_dup2(p[THIS], *mode == 'r');
PerlLIO_close(p[THIS]);
if (p[THAT] != (*mode == 'r')) /* if dup2() didn't close it */
PerlLIO_close(p[THAT]);
}
- else
+ else {
+ setfd_cloexec_or_inhexec_by_sysfdness(p[THIS]);
PerlLIO_close(p[THAT]);
+ }
#ifndef OS2
if (doexec) {
#if !defined(HAS_FCNTL) || !defined(F_SETFD)
#undef THIS
#undef THAT
}
- do_execfree(); /* free any memory malloced by child on vfork */
if (did_pipes)
PerlLIO_close(pp[1]);
if (p[that] < p[This]) {
- PerlLIO_dup2(p[This], p[that]);
+ PerlLIO_dup2_cloexec(p[This], p[that]);
PerlLIO_close(p[This]);
p[This] = p[that];
}
if (did_pipes && pid > 0) {
int errkid;
unsigned n = 0;
- SSize_t n1;
while (n < sizeof(int)) {
- n1 = PerlLIO_read(pp[0],
+ const SSize_t n1 = PerlLIO_read(pp[0],
(void*)(((char*)&errkid)+n),
(sizeof(int)) - n);
if (n1 <= 0)
PerlLIO_close(pp[0]);
return PerlIO_fdopen(p[This], mode);
}
-#else
-#if defined(DJGPP)
+#elif defined(DJGPP)
FILE *djgpp_popen();
PerlIO *
Perl_my_popen(pTHX_ const char *cmd, const char *mode)
*/
return PerlIO_importFILE(djgpp_popen(cmd, mode), 0);
}
-#else
-#if defined(__LIBCATAMOUNT__)
+#elif defined(__LIBCATAMOUNT__)
PerlIO *
Perl_my_popen(pTHX_ const char *cmd, const char *mode)
{
return NULL;
}
-#endif
-#endif
#endif /* !DOSISH */
: 0
);
}
-#else
-#if defined(__LIBCATAMOUNT__)
+#elif defined(__LIBCATAMOUNT__)
I32
Perl_my_pclose(pTHX_ PerlIO *ptr)
{
return -1;
}
-#endif
#endif /* !DOSISH */
#if (!defined(DOSISH) || defined(OS2) || defined(WIN32) || defined(NETWARE)) && !defined(__LIBCATAMOUNT__)
}
#endif
-#if defined(OS2) || defined(__amigaos4__)
-# if defined(__amigaos4__) && defined(pclose)
-# undef pclose
-# endif
+#if defined(OS2)
int pclose();
#ifdef HAS_FORK
int /* Cannot prototype with I32
if (len < sizeof tmpbuf)
tmpbuf[len] = '\0';
# else
- s = delimcpy(tmpbuf, tmpbuf + sizeof tmpbuf, s, bufend,
- ':',
- &len);
+ s = delimcpy_no_escape(tmpbuf, tmpbuf + sizeof tmpbuf, s, bufend,
+ ':', &len);
# endif
if (s < bufend)
s++;
if (error)
Perl_croak_nocontext("panic: pthread_getspecific, error=%d", error);
return (void*)t;
-# else
-# ifdef I_MACH_CTHREADS
+# elif defined(I_MACH_CTHREADS)
return (void*)cthread_data(cthread_self());
-# else
+# else
return (void*)PTHREAD_GETSPECIFIC(PL_thr_key);
-# endif
# endif
#else
return (void*)NULL;
long open_max = -1;
# ifdef PERL_FFLUSH_ALL_FOPEN_MAX
open_max = PERL_FFLUSH_ALL_FOPEN_MAX;
-# else
-# if defined(HAS_SYSCONF) && defined(_SC_OPEN_MAX)
+# elif defined(HAS_SYSCONF) && defined(_SC_OPEN_MAX)
open_max = sysconf(_SC_OPEN_MAX);
-# else
-# ifdef FOPEN_MAX
+# elif defined(FOPEN_MAX)
open_max = FOPEN_MAX;
-# else
-# ifdef OPEN_MAX
+# elif defined(OPEN_MAX)
open_max = OPEN_MAX;
-# else
-# ifdef _NFILE
+# elif defined(_NFILE)
open_max = _NFILE;
-# endif
-# endif
-# endif
-# endif
-# endif
+# endif
if (open_max > 0) {
long i;
for (i = 0; i < open_max; i++)
if (name && HEK_LEN(name))
Perl_warner(aTHX_ packWARN(WARN_IO),
- "Filehandle %"HEKf" opened only for %sput",
+ "Filehandle %" HEKf " opened only for %sput",
HEKfARG(name), direction);
else
Perl_warner(aTHX_ packWARN(WARN_IO),
? "socket" : "filehandle");
const bool have_name = name && SvCUR(name);
Perl_warner(aTHX_ packWARN(warn_type),
- "%s%s on %s %s%s%"SVf, func, pars, vile, type,
+ "%s%s on %s %s%s%" SVf, func, pars, vile, type,
have_name ? " " : "",
SVfARG(have_name ? name : &PL_sv_no));
if (io && IoDIRP(io) && !(IoFLAGS(io) & IOf_FAKE_DIRP))
Perl_warner(
aTHX_ packWARN(warn_type),
- "\t(Are you trying to call %s%s on dirhandle%s%"SVf"?)\n",
+ "\t(Are you trying to call %s%s on dirhandle%s%" SVf "?)\n",
func, pars, have_name ? " " : "",
SVfARG(have_name ? name : &PL_sv_no)
);
* This algorithm also fails to handle years before A.D. 1 gracefully, but
* that's still outside the scope for POSIX time manipulation, so I don't
* care.
+ *
+ * - lwall
*/
year = 1900 + ptm->tm_year;
{
#ifdef HAS_STRFTIME
- /* Note that yday and wday effectively are ignored by this function, as mini_mktime() overwrites them */
+ /* strftime(), but with a different API so that the return value is a pointer
+ * to the formatted result (which MUST be arranged to be FREED BY THE
+ * CALLER). This allows this function to increase the buffer size as needed,
+ * so that the caller doesn't have to worry about that.
+ *
+ * Note that yday and wday effectively are ignored by this function, as
+ * mini_mktime() overwrites them */
char *buf;
int buflen;
buflen = 64;
Newx(buf, buflen, char);
- GCC_DIAG_IGNORE(-Wformat-nonliteral); /* fmt checked by caller */
+ GCC_DIAG_IGNORE_STMT(-Wformat-nonliteral); /* fmt checked by caller */
len = strftime(buf, buflen, fmt, &mytm);
- GCC_DIAG_RESTORE;
+ GCC_DIAG_RESTORE_STMT;
/*
** The following is needed to handle to the situation where
Renew(buf, bufsize, char);
while (buf) {
- GCC_DIAG_IGNORE(-Wformat-nonliteral); /* fmt checked by caller */
+ GCC_DIAG_IGNORE_STMT(-Wformat-nonliteral); /* fmt checked by caller */
buflen = strftime(buf, bufsize, fmt, &mytm);
- GCC_DIAG_RESTORE;
+ GCC_DIAG_RESTORE_STMT;
if (buflen > 0 && buflen < bufsize)
break;
#define SV_CWD_RETURN_UNDEF \
-sv_setsv(sv, &PL_sv_undef); \
-return FALSE
+ sv_set_undef(sv); \
+ return FALSE
#define SV_CWD_ISDOT(dp) \
(dp->d_name[0] == '.' && (dp->d_name[1] == '\0' || \
return TRUE;
}
else {
- sv_setsv(sv, &PL_sv_undef);
- return FALSE;
+ SV_CWD_RETURN_UNDEF;
}
}
return -1;
}
+#ifdef SOCK_CLOEXEC
+ type &= ~SOCK_CLOEXEC;
+#endif
+
#ifdef EMULATE_SOCKETPAIR_UDP
if (type == SOCK_DGRAM)
return S_socketpair_udp(fd);
abort_tidy_up_and_fail:
#ifdef ECONNABORTED
errno = ECONNABORTED; /* This would be the standard thing to do. */
-#else
-# ifdef ECONNREFUSED
+#elif defined(ECONNREFUSED)
errno = ECONNREFUSED; /* E.g. Symbian does not have ECONNABORTED. */
-# else
+#else
errno = ETIMEDOUT; /* Desperation time. */
-# endif
#endif
tidy_up_and_fail:
{
if (*p) {
if (isDIGIT(*p)) {
- const char* endptr;
+ const char* endptr = p + strlen(p);
UV uv;
if (grok_atoUV(p, &uv, &endptr) && uv <= U32_MAX) {
opt = (U32)uv;
the_end_of_the_opts_parser:
if (opt & ~PERL_UNICODE_ALL_FLAGS)
- Perl_croak(aTHX_ "Unknown Unicode option value %"UVuf,
+ Perl_croak(aTHX_ "Unknown Unicode option value %" UVuf,
(UV) (opt & ~PERL_UNICODE_ALL_FLAGS));
*popt = p;
# define PERL_RANDOM_DEVICE "/dev/urandom"
# endif
#endif
- fd = PerlLIO_open(PERL_RANDOM_DEVICE, 0);
+ fd = PerlLIO_open_cloexec(PERL_RANDOM_DEVICE, 0);
if (fd != -1) {
if (PerlLIO_read(fd, (void*)&u, sizeof u) != sizeof u)
u = 0;
void
Perl_get_hash_seed(pTHX_ unsigned char * const seed_buffer)
{
+#ifndef NO_PERL_HASH_ENV
const char *env_pv;
+#endif
unsigned long i;
PERL_ARGS_ASSERT_GET_HASH_SEED;
+#ifndef NO_PERL_HASH_ENV
env_pv= PerlEnv_getenv("PERL_HASH_SEED");
if ( env_pv )
-#ifndef USE_HASH_SEED_EXPLICIT
{
/* ignore leading spaces */
while (isSPACE(*env_pv))
env_pv++;
-#ifdef USE_PERL_PERTURB_KEYS
+# ifdef USE_PERL_PERTURB_KEYS
/* if they set it to "0" we disable key traversal randomization completely */
if (strEQ(env_pv,"0")) {
PL_hash_rand_bits_enabled= 0;
/* otherwise switch to deterministic mode */
PL_hash_rand_bits_enabled= 2;
}
-#endif
+# endif
/* ignore a leading 0x... if it is there */
if (env_pv[0] == '0' && env_pv[1] == 'x')
env_pv += 2;
/* should we warn about insufficient hex? */
}
else
-#endif
+#endif /* NO_PERL_HASH_ENV */
{
- (void)seedDrand01((Rand_seed_t)seed());
-
for( i = 0; i < PERL_HASH_SEED_BYTES; i++ ) {
- seed_buffer[i] = (unsigned char)(Drand01() * (U8_MAX+1));
+ seed_buffer[i] = (unsigned char)(Perl_internal_drand48() * (U8_MAX+1));
}
}
#ifdef USE_PERL_PERTURB_KEYS
PL_hash_rand_bits = ROTL_UV(PL_hash_rand_bits,8);
}
}
+# ifndef NO_PERL_HASH_ENV
env_pv= PerlEnv_getenv("PERL_PERTURB_KEYS");
if (env_pv) {
if (strEQ(env_pv,"0") || strEQ(env_pv,"NO")) {
Perl_warn(aTHX_ "perl: warning: strange setting in '$ENV{PERL_PERTURB_KEYS}': '%s'\n", env_pv);
}
}
+# endif
#endif
}
* timeval. */
{
STRLEN len;
- const char* endptr;
+ const char* endptr = pmlenv + strlen(pmlenv);
int fd;
UV uv;
if (grok_atoUV(pmlenv, &uv, &endptr) /* Ignore endptr. */
switch (mlt) {
case MLT_ALLOC:
len = my_snprintf(buf, sizeof(buf),
- "alloc: %s:%d:%s: %"IVdf" %"UVuf
- " %s = %"IVdf": %"UVxf"\n",
+ "alloc: %s:%d:%s: %" IVdf " %" UVuf
+ " %s = %" IVdf ": %" UVxf "\n",
filename, linenumber, funcname, n, typesize,
type_name, n * typesize, PTR2UV(newalloc));
break;
case MLT_REALLOC:
len = my_snprintf(buf, sizeof(buf),
- "realloc: %s:%d:%s: %"IVdf" %"UVuf
- " %s = %"IVdf": %"UVxf" -> %"UVxf"\n",
+ "realloc: %s:%d:%s: %" IVdf " %" UVuf
+ " %s = %" IVdf ": %" UVxf " -> %" UVxf "\n",
filename, linenumber, funcname, n, typesize,
type_name, n * typesize, PTR2UV(oldalloc),
PTR2UV(newalloc));
break;
case MLT_FREE:
len = my_snprintf(buf, sizeof(buf),
- "free: %s:%d:%s: %"UVxf"\n",
+ "free: %s:%d:%s: %" UVxf "\n",
filename, linenumber, funcname,
PTR2UV(oldalloc));
break;
case MLT_NEW_SV:
case MLT_DEL_SV:
len = my_snprintf(buf, sizeof(buf),
- "%s_SV: %s:%d:%s: %"UVxf SV_LOG_SERIAL_FMT "\n",
+ "%s_SV: %s:%d:%s: %" UVxf SV_LOG_SERIAL_FMT "\n",
mlt == MLT_NEW_SV ? "new" : "del",
filename, linenumber, funcname,
PTR2UV(sv) _SV_LOG_SERIAL_ARG(sv));
const char *filename, const int linenumber,
const char *funcname)
{
+ PERL_ARGS_ASSERT_MEM_LOG_ALLOC;
+
mem_log_common_if(MLT_ALLOC, n, typesize, type_name,
NULL, NULL, newalloc,
filename, linenumber, funcname);
const char *filename, const int linenumber,
const char *funcname)
{
+ PERL_ARGS_ASSERT_MEM_LOG_REALLOC;
+
mem_log_common_if(MLT_REALLOC, n, typesize, type_name,
NULL, oldalloc, newalloc,
filename, linenumber, funcname);
const char *filename, const int linenumber,
const char *funcname)
{
+ PERL_ARGS_ASSERT_MEM_LOG_FREE;
+
mem_log_common_if(MLT_FREE, 0, 0, "", NULL, oldalloc, NULL,
filename, linenumber, funcname);
return oldalloc;
#endif /* PERL_MEM_LOG */
/*
-=for apidoc my_sprintf
-
-The C library C<sprintf>, wrapped if necessary, to ensure that it will return
-the length of the string written to the buffer. Only rare pre-ANSI systems
-need the wrapper function - usually this is a direct call to C<sprintf>.
-
-=cut
-*/
-#ifndef SPRINTF_RETURNS_STRLEN
-int
-Perl_my_sprintf(char *buffer, const char* pat, ...)
-{
- va_list args;
- PERL_ARGS_ASSERT_MY_SPRINTF;
- va_start(args, pat);
- vsprintf(buffer, pat, args);
- va_end(args);
- return strlen(buffer);
-}
-#endif
-
-/*
=for apidoc quadmath_format_single
C<quadmath_snprintf()> is very strict about its C<format> string and will
if (qfmt) {
/* If the format looked promising, use it as quadmath. */
retval = quadmath_snprintf(buffer, len, qfmt, va_arg(ap, NV));
- if (retval == -1)
+ if (retval == -1) {
+ if (qfmt != format) {
+ dTHX;
+ SAVEFREEPV(qfmt);
+ }
Perl_croak_nocontext("panic: quadmath_snprintf failed, format \"%s\"", qfmt);
+ }
quadmath_valid = TRUE;
if (qfmt != format)
Safefree(qfmt);
#ifdef HAS_VSNPRINTF
/* vsnprintf() shows failure with >= len */
||
- (len > 0 && (Size_t)retval >= len)
+ (len > 0 && (Size_t)retval >= len)
#endif
)
Perl_croak_nocontext("panic: my_snprintf buffer overflow");
PERL_UNUSED_ARG(buffer);
PERL_UNUSED_ARG(len);
PERL_UNUSED_ARG(format);
- PERL_UNUSED_ARG(ap);
+ /* the cast is to avoid gcc -Wsizeof-array-argument complaining */
+ PERL_UNUSED_ARG((void*)ap);
Perl_croak_nocontext("panic: my_vsnprintf not available with quadmath");
return 0;
#else
#ifdef HAS_VSNPRINTF
/* vsnprintf() shows failure with >= len */
||
- (len > 0 && (Size_t)retval >= len)
+ (len > 0 && (Size_t)retval >= len)
#endif
)
Perl_croak_nocontext("panic: my_vsnprintf buffer overflow");
#ifdef PERL_IMPLICIT_CONTEXT
-/* Implements the MY_CXT_INIT macro. The first time a module is loaded,
-the global PL_my_cxt_index is incremented, and that value is assigned to
-that module's static my_cxt_index (who's address is passed as an arg).
-Then, for each interpreter this function is called for, it makes sure a
-void* slot is available to hang the static data off, by allocating or
-extending the interpreter's PL_my_cxt_list array */
-
-#ifndef PERL_GLOBAL_STRUCT_PRIVATE
-void *
-Perl_my_cxt_init(pTHX_ int *index, size_t size)
-{
- dVAR;
- void *p;
- PERL_ARGS_ASSERT_MY_CXT_INIT;
- if (*index == -1) {
- /* this module hasn't been allocated an index yet */
-#if defined(USE_ITHREADS)
- MUTEX_LOCK(&PL_my_ctx_mutex);
-#endif
- *index = PL_my_cxt_index++;
-#if defined(USE_ITHREADS)
- MUTEX_UNLOCK(&PL_my_ctx_mutex);
-#endif
- }
-
- /* make sure the array is big enough */
- if (PL_my_cxt_size <= *index) {
- if (PL_my_cxt_size) {
- while (PL_my_cxt_size <= *index)
- PL_my_cxt_size *= 2;
- Renew(PL_my_cxt_list, PL_my_cxt_size, void *);
- }
- else {
- PL_my_cxt_size = 16;
- Newx(PL_my_cxt_list, PL_my_cxt_size, void *);
- }
- }
- /* newSV() allocates one more than needed */
- p = (void*)SvPVX(newSV(size-1));
- PL_my_cxt_list[*index] = p;
- Zero(p, size, char);
- return p;
-}
-#else /* #ifndef PERL_GLOBAL_STRUCT_PRIVATE */
+# ifdef PERL_GLOBAL_STRUCT_PRIVATE
+/* rather than each module having a static var holding its index,
+ * use a global array of name to index mappings
+ */
int
Perl_my_cxt_index(pTHX_ const char *my_cxt_key)
{
}
return -1;
}
+# endif
+
+
+/* Implements the MY_CXT_INIT macro. The first time a module is loaded,
+the global PL_my_cxt_index is incremented, and that value is assigned to
+that module's static my_cxt_index (who's address is passed as an arg).
+Then, for each interpreter this function is called for, it makes sure a
+void* slot is available to hang the static data off, by allocating or
+extending the interpreter's PL_my_cxt_list array */
void *
+# ifdef PERL_GLOBAL_STRUCT_PRIVATE
Perl_my_cxt_init(pTHX_ const char *my_cxt_key, size_t size)
+# else
+Perl_my_cxt_init(pTHX_ int *indexp, size_t size)
+# endif
{
dVAR;
void *p;
PERL_ARGS_ASSERT_MY_CXT_INIT;
+# ifdef PERL_GLOBAL_STRUCT_PRIVATE
index = Perl_my_cxt_index(aTHX_ my_cxt_key);
+# else
+ index = *indexp;
+# endif
+ /* do initial check without locking.
+ * -1: not allocated or another thread currently allocating
+ * other: already allocated by another thread
+ */
if (index == -1) {
- /* this module hasn't been allocated an index yet */
-#if defined(USE_ITHREADS)
MUTEX_LOCK(&PL_my_ctx_mutex);
-#endif
- index = PL_my_cxt_index++;
-#if defined(USE_ITHREADS)
+ /*now a stricter check with locking */
+# ifdef PERL_GLOBAL_STRUCT_PRIVATE
+ index = Perl_my_cxt_index(aTHX_ my_cxt_key);
+# else
+ index = *indexp;
+# endif
+ if (index == -1)
+ /* this module hasn't been allocated an index yet */
+# ifdef PERL_GLOBAL_STRUCT_PRIVATE
+ index = PL_my_cxt_index++;
+
+ /* Store the index in a global MY_CXT_KEY string to index mapping
+ * table. This emulates the perl-module static my_cxt_index var on
+ * builds which don't allow static vars */
+ if (PL_my_cxt_keys_size <= index) {
+ int old_size = PL_my_cxt_keys_size;
+ int i;
+ if (PL_my_cxt_keys_size) {
+ IV new_size = PL_my_cxt_keys_size;
+ while (new_size <= index)
+ new_size *= 2;
+ PL_my_cxt_keys = (const char **)PerlMemShared_realloc(
+ PL_my_cxt_keys,
+ new_size * sizeof(const char *));
+ PL_my_cxt_keys_size = new_size;
+ }
+ else {
+ PL_my_cxt_keys_size = 16;
+ PL_my_cxt_keys = (const char **)PerlMemShared_malloc(
+ PL_my_cxt_keys_size * sizeof(const char *));
+ }
+ for (i = old_size; i < PL_my_cxt_keys_size; i++) {
+ PL_my_cxt_keys[i] = 0;
+ }
+ }
+ PL_my_cxt_keys[index] = my_cxt_key;
+# else
+ *indexp = PL_my_cxt_index++;
+ index = *indexp;
+# endif
MUTEX_UNLOCK(&PL_my_ctx_mutex);
-#endif
}
/* make sure the array is big enough */
if (PL_my_cxt_size <= index) {
- int old_size = PL_my_cxt_size;
- int i;
if (PL_my_cxt_size) {
- while (PL_my_cxt_size <= index)
- PL_my_cxt_size *= 2;
- Renew(PL_my_cxt_list, PL_my_cxt_size, void *);
- Renew(PL_my_cxt_keys, PL_my_cxt_size, const char *);
+ IV new_size = PL_my_cxt_size;
+ while (new_size <= index)
+ new_size *= 2;
+ Renew(PL_my_cxt_list, new_size, void *);
+ PL_my_cxt_size = new_size;
}
else {
PL_my_cxt_size = 16;
Newx(PL_my_cxt_list, PL_my_cxt_size, void *);
- Newx(PL_my_cxt_keys, PL_my_cxt_size, const char *);
- }
- for (i = old_size; i < PL_my_cxt_size; i++) {
- PL_my_cxt_keys[i] = 0;
- PL_my_cxt_list[i] = 0;
}
}
- PL_my_cxt_keys[index] = my_cxt_key;
/* newSV() allocates one more than needed */
p = (void*)SvPVX(newSV(size-1));
PL_my_cxt_list[index] = p;
Zero(p, size, char);
return p;
}
-#endif /* #ifndef PERL_GLOBAL_STRUCT_PRIVATE */
+
#endif /* PERL_IMPLICIT_CONTEXT */
if(apiverlen != sizeof("v" PERL_API_VERSION_STRING)-1
|| memNE(api_p, "v" PERL_API_VERSION_STRING,
sizeof("v" PERL_API_VERSION_STRING)-1))
- Perl_croak_nocontext("Perl API version %s of %"SVf" does not match %s",
+ Perl_croak_nocontext("Perl API version %s of %" SVf " does not match %s",
api_p, SVfARG(PL_stack_base[ax + 0]),
"v" PERL_API_VERSION_STRING);
}
else {
/* XXX GV_ADDWARN */
vn = "XS_VERSION";
- sv = get_sv(Perl_form(aTHX_ "%"SVf"::%s", SVfARG(module), vn), 0);
+ sv = get_sv(Perl_form(aTHX_ "%" SVf "::%s", SVfARG(module), vn), 0);
if (!sv || !SvOK(sv)) {
vn = "VERSION";
- sv = get_sv(Perl_form(aTHX_ "%"SVf"::%s", SVfARG(module), vn), 0);
+ sv = get_sv(Perl_form(aTHX_ "%" SVf "::%s", SVfARG(module), vn), 0);
}
}
if (sv) {
xssv = upg_version(xssv, 0);
if ( vcmp(pmsv,xssv) ) {
SV *string = vstringify(xssv);
- SV *xpt = Perl_newSVpvf(aTHX_ "%"SVf" object version %"SVf
+ SV *xpt = Perl_newSVpvf(aTHX_ "%" SVf " object version %" SVf
" does not match ", SVfARG(module), SVfARG(string));
SvREFCNT_dec(string);
string = vstringify(pmsv);
if (vn) {
- Perl_sv_catpvf(aTHX_ xpt, "$%"SVf"::%s %"SVf, SVfARG(module), vn,
+ Perl_sv_catpvf(aTHX_ xpt, "$%" SVf "::%s %" SVf, SVfARG(module), vn,
SVfARG(string));
} else {
- Perl_sv_catpvf(aTHX_ xpt, "bootstrap parameter %"SVf, SVfARG(string));
+ Perl_sv_catpvf(aTHX_ xpt, "bootstrap parameter %" SVf, SVfARG(string));
}
SvREFCNT_dec(string);
the result is guaranteed to be C<NUL>-terminated if there is room. Note that
room for the C<NUL> should be included in C<size>.
+The return value is the total length that C<dst> would have if C<size> is
+sufficiently large. Thus it is the initial length of C<dst> plus the length of
+C<src>. If C<size> is smaller than the return, the excess was not appended.
+
=cut
-Description stolen from http://www.openbsd.org/cgi-bin/man.cgi?query=strlcat
+Description stolen from http://man.openbsd.org/strlcat.3
*/
#ifndef HAS_STRLCAT
Size_t
C<my_strlcpy()> copies up to S<C<size - 1>> characters from the string C<src>
to C<dst>, C<NUL>-terminating the result if C<size> is not 0.
+The return value is the total length C<src> would be if the copy completely
+succeeded. If it is larger than C<size>, the excess was not copied.
+
=cut
-Description stolen from http://www.openbsd.org/cgi-bin/man.cgi?query=strlcpy
+Description stolen from http://man.openbsd.org/strlcpy.3
*/
#ifndef HAS_STRLCPY
Size_t
}
#endif
+/*
+=for apidoc my_strnlen
+
+The C library C<strnlen> if available, or a Perl implementation of it.
+
+C<my_strnlen()> computes the length of the string, up to C<maxlen>
+characters. It will will never attempt to address more than C<maxlen>
+characters, making it suitable for use with strings that are not
+guaranteed to be NUL-terminated.
+
+=cut
+
+Description stolen from http://man.openbsd.org/strnlen.3,
+implementation stolen from PostgreSQL.
+*/
+#ifndef HAS_STRNLEN
+Size_t
+Perl_my_strnlen(const char *str, Size_t maxlen)
+{
+ const char *p = str;
+
+ PERL_ARGS_ASSERT_MY_STRNLEN;
+
+ while(maxlen-- && *p)
+ p++;
+
+ return p - str;
+}
+#endif
+
#if defined(_MSC_VER) && (_MSC_VER >= 1300) && (_MSC_VER < 1400) && (WINVER < 0x0500)
/* VC7 or 7.1, building with pre-VC7 runtime libraries. */
long _ftol( double ); /* Defined by VC6 C libs. */
#endif
}
+#if !defined(HAS_MKOSTEMP) || !defined(HAS_MKSTEMP)
+
+#define TEMP_FILE_CH "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvxyz0123456789"
+#define TEMP_FILE_CH_COUNT (sizeof(TEMP_FILE_CH)-1)
+
+static int
+S_my_mkostemp(char *templte, int flags) {
+ dTHX;
+ STRLEN len = strlen(templte);
+ int fd;
+ int attempts = 0;
+
+ if (len < 6 ||
+ templte[len-1] != 'X' || templte[len-2] != 'X' || templte[len-3] != 'X' ||
+ templte[len-4] != 'X' || templte[len-5] != 'X' || templte[len-6] != 'X') {
+ SETERRNO(EINVAL, LIB_INVARG);
+ return -1;
+ }
+
+ do {
+ int i;
+ for (i = 1; i <= 6; ++i) {
+ templte[len-i] = TEMP_FILE_CH[(int)(Perl_internal_drand48() * TEMP_FILE_CH_COUNT)];
+ }
+ fd = PerlLIO_open3(templte, O_RDWR | O_CREAT | O_EXCL | flags, 0600);
+ } while (fd == -1 && errno == EEXIST && ++attempts <= 100);
+
+ return fd;
+}
+
+#endif
+
+#ifndef HAS_MKOSTEMP
+int
+Perl_my_mkostemp(char *templte, int flags)
+{
+ PERL_ARGS_ASSERT_MY_MKOSTEMP;
+ return S_my_mkostemp(templte, flags);
+}
+#endif
+
+#ifndef HAS_MKSTEMP
+int
+Perl_my_mkstemp(char *templte)
+{
+ PERL_ARGS_ASSERT_MY_MKSTEMP;
+ return S_my_mkostemp(templte, 0);
+}
+#endif
+
REGEXP *
Perl_get_re_arg(pTHX_ SV *sv) {
#ifdef PERL_DRAND48_QUAD
-#define DRAND48_MULT U64_CONST(0x5deece66d)
+#define DRAND48_MULT UINT64_C(0x5deece66d)
#define DRAND48_ADD 0xb
-#define DRAND48_MASK U64_CONST(0xffffffffffff)
+#define DRAND48_MASK UINT64_C(0xffffffffffff)
#else
* The matched regular expression is roughly "\(.*:\d+\)\s*$" */
const char* source_number_start;
const char* source_name_end;
- const char* source_line_end;
+ const char* source_line_end = start;
const char* close_paren;
UV uv;
/* Skip trailing whitespace. */
- while (p > start && isspace(*p)) p--;
+ while (p > start && isSPACE(*p)) p--;
/* Now we should be at the close paren. */
if (p == start || *p != ')')
return NULL;
close_paren = p;
p--;
/* Now we should be in the line number. */
- if (p == start || !isdigit(*p))
+ if (p == start || !isDIGIT(*p))
return NULL;
/* Skip over the digits. */
- while (p > start && isdigit(*p))
+ while (p > start && isDIGIT(*p))
p--;
/* Now we should be at the colon. */
if (p == start || *p != ':')
*source_name_size = source_name_end - p;
if (grok_atoUV(source_number_start, &uv, &source_line_end)
&& source_line_end == close_paren
- && uv <= MAX_STRLEN
+ && uv <= PERL_INT_MAX
) {
*source_line = (STRLEN)uv;
return p;
* the object name (used as "-o '%s'" ), leave since at least
* partially the user controls it. */
for (p = ctx->fname; *p; p++) {
- if (*p == '\'' || iscntrl(*p)) {
+ if (*p == '\'' || isCNTRL(*p)) {
ctx->unavail = TRUE;
return;
}
char out[1024];
UV cnt = fread(out, 1, sizeof(out), fp);
if (cnt < sizeof(out)) {
- const char* p = atos_parse(out + cnt, out,
+ const char* p = atos_parse(out + cnt - 1, out,
source_name_size,
source_line);
if (p) {
Newx(*source_name,
- *source_name_size + 1, char);
+ *source_name_size, char);
Copy(p, *source_name,
- *source_name_size + 1, char);
+ *source_name_size, char);
}
}
pclose(fp);
for (i = skip; i < try_depth; i++) {
Dl_info* dl_info = &dl_infos[i];
- total_bytes += sizeof(Perl_c_backtrace_frame);
-
+ object_name_sizes[i] = 0;
source_names[i] = NULL;
source_name_sizes[i] = 0;
source_lines[i] = 0;
/* Yes, zero from dladdr() is failure. */
if (dladdr(raw_frames[i], dl_info)) {
+ total_bytes += sizeof(Perl_c_backtrace_frame);
+
object_name_sizes[i] =
dl_info->dli_fname ? strlen(dl_info->dli_fname) : 0;
symbol_name_sizes[i] =
if (frame->source_name_size &&
frame->source_name_offset &&
frame->source_line_number) {
- Perl_sv_catpvf(aTHX_ dsv, "\t%s:%"UVuf,
+ Perl_sv_catpvf(aTHX_ dsv, "\t%s:%" UVuf,
(char*)bt + frame->source_name_offset,
(UV)frame->source_line_number);
} else {
sv_catpvs(dsv, "\n");
}
- Perl_free_c_backtrace(aTHX_ bt);
+ Perl_free_c_backtrace(bt);
return dsv;
}
#endif
+
+#ifdef USE_DTRACE
+
+/* log a sub call or return */
+
+void
+Perl_dtrace_probe_call(pTHX_ CV *cv, bool is_call)
+{
+ const char *func;
+ const char *file;
+ const char *stash;
+ const COP *start;
+ line_t line;
+
+ PERL_ARGS_ASSERT_DTRACE_PROBE_CALL;
+
+ if (CvNAMED(cv)) {
+ HEK *hek = CvNAME_HEK(cv);
+ func = HEK_KEY(hek);
+ }
+ else {
+ GV *gv = CvGV(cv);
+ func = GvENAME(gv);
+ }
+ start = (const COP *)CvSTART(cv);
+ file = CopFILE(start);
+ line = CopLINE(start);
+ stash = CopSTASHPV(start);
+
+ if (is_call) {
+ PERL_SUB_ENTRY(func, file, line, stash);
+ }
+ else {
+ PERL_SUB_RETURN(func, file, line, stash);
+ }
+}
+
+
+/* log a require file loading/loaded */
+
+void
+Perl_dtrace_probe_load(pTHX_ const char *name, bool is_loading)
+{
+ PERL_ARGS_ASSERT_DTRACE_PROBE_LOAD;
+
+ if (is_loading) {
+ PERL_LOADING_FILE(name);
+ }
+ else {
+ PERL_LOADED_FILE(name);
+ }
+}
+
+
+/* log an op execution */
+
+void
+Perl_dtrace_probe_op(pTHX_ const OP *op)
+{
+ PERL_ARGS_ASSERT_DTRACE_PROBE_OP;
+
+ PERL_OP_ENTRY(OP_NAME(op));
+}
+
+
+/* log a compile/run phase change */
+
+void
+Perl_dtrace_probe_phase(pTHX_ enum perl_phase phase)
+{
+ const char *ph_old = PL_phase_names[PL_phase];
+ const char *ph_new = PL_phase_names[phase];
+
+ PERL_PHASE_CHANGE(ph_new, ph_old);
+}
+
+#endif
+
/*
* ex: set ts=8 sts=4 sw=4 et:
*/
https://perl5.git.perl.org / perl5.git / blobdiff