diff options
Diffstat (limited to 'perl.h')
| -rw-r--r-- | perl.h | 50 |
1 files changed, 45 insertions, 5 deletions
@@ -528,11 +528,51 @@ register struct op *Perl_op asm(stringify(OP_IN_REGISTER)); # define VOL #endif -#define TAINT (PL_tainted = TRUE) -#define TAINT_NOT (PL_tainted = FALSE) -#define TAINT_IF(c) if (c) { PL_tainted = TRUE; } -#define TAINT_ENV() if (PL_tainting) { taint_env(); } -#define TAINT_PROPER(s) if (PL_tainting) { taint_proper(NULL, s); } +/* By compiling a perl with -DNO_TAINT_SUPPORT or -DSILENT_NO_TAINT_SUPPORT, + * you get a perl without taint support, but doubtlessly with a lesser + * degree of support. Do not do so unless you know exactly what it means + * technically, have a good reason to do so, and know exactly how the + * perl will be used. perls with -DSILENT_NO_TAINT_SUPPORT are considered + * a potential security risk due to flat out ignoring the security-relevant + * taint flags. This being said, a perl without taint support compiled in + * has marginal run-time performance benefits. + * SILENT_NO_TAINT_SUPPORT implies NO_TAINT_SUPPORT. + * SILENT_NO_TAINT_SUPPORT is the same as NO_TAINT_SUPPORT except it + * silently ignores -t/-T instead of throwing an exception. + */ +#if SILENT_NO_TAINT_SUPPORT && !defined(NO_TAINT_SUPPORT) +# define NO_TAINT_SUPPORT 1 +#endif + +/* NO_TAINT_SUPPORT can be set to transform virtually all taint-related + * operations into no-ops for a very modest speed-up. Enable only if you + * know what you're doing: tests and CPAN modules' tests are bound to fail. + */ +#if NO_TAINT_SUPPORT +# define TAINT NOOP +# define TAINT_NOT NOOP +# define TAINT_IF(c) NOOP +# define TAINT_ENV() NOOP +# define TAINT_PROPER(s) NOOP +# define TAINT_set(s) NOOP +# define TAINT_get 0 +# define TAINTING_get 0 +# define TAINTING_set(s) NOOP +# define TAINT_WARN_get 0 +# define TAINT_WARN_set(s) NOOP +#else +# define TAINT (PL_tainted = TRUE) +# define TAINT_NOT (PL_tainted = FALSE) +# define TAINT_IF(c) if (c) { PL_tainted = TRUE; } +# define TAINT_ENV() if (PL_tainting) { taint_env(); } +# define TAINT_PROPER(s) if (PL_tainting) { taint_proper(NULL, s); } +# define TAINT_set(s) (PL_tainted = (s)) +# define TAINT_get (PL_tainted) +# define TAINTING_get (PL_tainting) +# define TAINTING_set(s) (PL_tainting = (s)) +# define TAINT_WARN_get (PL_taint_warn) +# define TAINT_WARN_set(s) (PL_taint_warn = (s)) +#endif /* flags used internally only within pp_subst and pp_substcont */ #ifdef PERL_CORE |