Re: [PATCH] Re: Storing &PL_sv_undef as a hash key with perl-5.8.x

[p5sagit/p5-mst-13.2.git] / perl.h

diff --git a/perl.h b/perl.h
index 70a88d8..acadabe 100644 (file)
--- a/perl.h
+++ b/perl.h
@@ -481,28 +481,42 @@ int usleep(unsigned int);
 #  else
 #    define EMBEDMYMALLOC      /* for compatibility */
 #  endif
-START_EXTERN_C
-Malloc_t Perl_malloc (MEM_SIZE nbytes);
-Malloc_t Perl_calloc (MEM_SIZE elements, MEM_SIZE size);
-Malloc_t Perl_realloc (Malloc_t where, MEM_SIZE nbytes);
-/* 'mfree' rather than 'free', since there is already a 'perl_free'
- * that causes clashes with case-insensitive linkers */
-Free_t   Perl_mfree (Malloc_t where);
-END_EXTERN_C
-
-typedef struct perl_mstats perl_mstats_t;
 
 #  define safemalloc  Perl_malloc
 #  define safecalloc  Perl_calloc
 #  define saferealloc Perl_realloc
 #  define safefree    Perl_mfree
+#  define CHECK_MALLOC_TOO_LATE_FOR_(code)     STMT_START {            \
+       if (!PL_tainting && MallocCfg_ptr[MallocCfg_cfg_env_read])      \
+               code;                                                   \
+    } STMT_END
+#  define CHECK_MALLOC_TOO_LATE_FOR(ch)                                \
+       CHECK_MALLOC_TOO_LATE_FOR_(MALLOC_TOO_LATE_FOR(ch))
+#  define panic_write2(s)              write(2, s, strlen(s))
+#  define CHECK_MALLOC_TAINT(newval)                           \
+       CHECK_MALLOC_TOO_LATE_FOR_(                             \
+               if (newval) {                                   \
+                 panic_write2("panic: tainting with $ENV{PERL_MALLOC_OPT}\n");\
+                 exit(1); })
+#  define MALLOC_CHECK_TAINT(argc,argv,env)    STMT_START {    \
+       if (doing_taint(argc,argv,env)) {                       \
+               MallocCfg_ptr[MallocCfg_skip_cfg_env] = 1;      \
+    }} STMT_END;
 #else  /* MYMALLOC */
 #  define safemalloc  safesysmalloc
 #  define safecalloc  safesyscalloc
 #  define saferealloc safesysrealloc
 #  define safefree    safesysfree
+#  define CHECK_MALLOC_TOO_LATE_FOR(ch)                ((void)0)
+#  define CHECK_MALLOC_TAINT(newval)           ((void)0)
+#  define MALLOC_CHECK_TAINT(argc,argv,env)
 #endif /* MYMALLOC */
 
+#define TOO_LATE_FOR_(ch,s)    Perl_croak(aTHX_ "Too late for \"-%c\" option%s", (char)(ch), s)
+#define TOO_LATE_FOR(ch)       TOO_LATE_FOR_(ch, "")
+#define MALLOC_TOO_LATE_FOR(ch)        TOO_LATE_FOR_(ch, " with $ENV{PERL_MALLOC_OPT}")
+#define MALLOC_CHECK_TAINT2(argc,argv) MALLOC_CHECK_TAINT(argc,argv,NULL)
+
 #if !defined(HAS_STRCHR) && defined(HAS_INDEX) && !defined(strchr)
 #define strchr index
 #define strrchr rindex
@@ -1676,17 +1690,10 @@ int isnan(double d);
 
 #endif
 
-struct perl_mstats {
-    UV *nfree;
-    UV *ntotal;
-    IV topbucket, topbucket_ev, topbucket_odd, totfree, total, total_chain;
-    IV total_sbrk, sbrks, sbrk_good, sbrk_slack, start_slack, sbrked_remains;
-    IV minbucket;
-    /* Level 1 info */
-    UV *bucket_mem_size;
-    UV *bucket_available_size;
-    UV nbuckets;
-};
+#ifdef MYMALLOC
+#  include "malloc_ctl.h"
+#endif
+
 struct RExC_state_t;
 
 typedef MEM_SIZE STRLEN;
@@ -1928,18 +1935,17 @@ typedef struct clone_params CLONE_PARAMS;
 #    define PERL_FPU_INIT fpsetmask(0);
 #  else
 #    if defined(SIGFPE) && defined(SIG_IGN)
-#      define PERL_FPU_INIT signal(SIGFPE, SIG_IGN);
+#      define PERL_FPU_INIT       PL_sigfpe_saved = signal(SIGFPE, SIG_IGN);
+#      define PERL_FPU_PRE_EXEC   { Sigsave_t xfpe; rsignal_save(SIGFPE, PL_sigfpe_saved, &xfpe);
+#      define PERL_FPU_POST_EXEC    rsignal_restore(SIGFPE, &xfpe); }
 #    else
 #      define PERL_FPU_INIT
 #    endif
 #  endif
 #endif
-
-#ifdef JPL
-    /* E.g. JPL needs to operate on a copy of the real environment.
-     * JDK 1.2 and 1.3 seem to get upset if the original environment
-     * is diddled with. */
-#   define NEED_ENVIRON_DUP_FOR_MODIFY
+#ifndef PERL_FPU_PRE_EXEC
+#  define PERL_FPU_PRE_EXEC   {
+#  define PERL_FPU_POST_EXEC  }
 #endif
 
 #ifndef PERL_SYS_INIT3
@@ -2249,6 +2255,12 @@ typedef        struct crypt_data {     /* straight from /usr/include/crypt.h */
 #if !defined(OS2) && !defined(MACOS_TRADITIONAL)
 #  include "iperlsys.h"
 #endif
+
+/* [perl #22371] Algorimic Complexity Attack on Perl 5.6.1, 5.8.0 */
+#if !defined(NO_HASH_SEED) && !defined(USE_HASH_SEED) && !defined(USE_HASH_SEED_EXPLICIT)
+#  define USE_HASH_SEED_EXPLICIT
+#endif
+
 #include "regexp.h"
 #include "sv.h"
 #include "util.h"
@@ -2622,6 +2634,13 @@ Gid_t getegid (void);
 #endif /* DEBUGGING */
 
 
+#define DEBUG_SCOPE(where) \
+    DEBUG_l(WITH_THR(Perl_deb(aTHX_ "%s scope %ld at %s:%d\n", \
+                   where, PL_scopestack_ix, __FILE__, __LINE__)));
+
+
+
+
 /* These constants should be used in preference to raw characters
  * when using magic. Note that some perl guts still assume
  * certain character properties of these constants, namely that
@@ -4341,7 +4360,6 @@ extern void moncontrol(int);
 
    HAS_UALARM
    HAS_USLEEP
-   HAS_NANOSLEEP
 
    HAS_SETITIMER
    HAS_GETITIMER