diff options
Diffstat (limited to 'sql/item_cmpfunc.cc')
| -rw-r--r-- | sql/item_cmpfunc.cc | 75 |
1 files changed, 73 insertions, 2 deletions
diff --git a/sql/item_cmpfunc.cc b/sql/item_cmpfunc.cc index 689ce656d60..a923befb8bc 100644 --- a/sql/item_cmpfunc.cc +++ b/sql/item_cmpfunc.cc @@ -5359,6 +5359,15 @@ int Regexp_processor_pcre::default_regex_flags() return default_regex_flags_pcre(current_thd); } +void Regexp_processor_pcre::set_recursion_limit(THD *thd) +{ + long stack_used; + DBUG_ASSERT(thd == current_thd); + stack_used= available_stack_size(thd->thread_stack, &stack_used); + m_pcre_extra.match_limit_recursion= + (my_thread_stack_size - stack_used)/my_pcre_frame_size; +} + /** Convert string to lib_charset, if needed. @@ -5450,15 +5459,77 @@ void Regexp_processor_pcre::pcre_exec_warn(int rc) const */ switch (rc) { + case PCRE_ERROR_NULL: + errmsg= "pcre_exec: null arguement passed"; + break; + case PCRE_ERROR_BADOPTION: + errmsg= "pcre_exec: bad option"; + break; + case PCRE_ERROR_BADMAGIC: + errmsg= "pcre_exec: bad magic - not a compiled regex"; + break; + case PCRE_ERROR_UNKNOWN_OPCODE: + errmsg= "pcre_exec: error in compiled regex"; + break; case PCRE_ERROR_NOMEMORY: errmsg= "pcre_exec: Out of memory"; break; + case PCRE_ERROR_NOSUBSTRING: + errmsg= "pcre_exec: no substring"; + break; + case PCRE_ERROR_MATCHLIMIT: + errmsg= "pcre_exec: match limit exceeded"; + break; + case PCRE_ERROR_CALLOUT: + errmsg= "pcre_exec: callout error"; + break; case PCRE_ERROR_BADUTF8: errmsg= "pcre_exec: Invalid utf8 byte sequence in the subject string"; break; + case PCRE_ERROR_BADUTF8_OFFSET: + errmsg= "pcre_exec: Started at invalid location within utf8 byte sequence"; + break; + case PCRE_ERROR_PARTIAL: + errmsg= "pcre_exec: partial match"; + break; + case PCRE_ERROR_INTERNAL: + errmsg= "pcre_exec: internal error"; + break; + case PCRE_ERROR_BADCOUNT: + errmsg= "pcre_exec: ovesize is negative"; + break; + case PCRE_ERROR_RECURSIONLIMIT: + my_snprintf(buf, sizeof(buf), "pcre_exec: recursion limit of %ld exceeded", + m_pcre_extra.match_limit_recursion); + errmsg= buf; + break; + case PCRE_ERROR_BADNEWLINE: + errmsg= "pcre_exec: bad newline options"; + break; + case PCRE_ERROR_BADOFFSET: + errmsg= "pcre_exec: start offset negative or greater than string length"; + break; + case PCRE_ERROR_SHORTUTF8: + errmsg= "pcre_exec: ended in middle of utf8 sequence"; + break; + case PCRE_ERROR_JIT_STACKLIMIT: + errmsg= "pcre_exec: insufficient stack memory for JIT compile"; + break; case PCRE_ERROR_RECURSELOOP: errmsg= "pcre_exec: Recursion loop detected"; break; + case PCRE_ERROR_BADMODE: + errmsg= "pcre_exec: compiled pattern passed to wrong bit library function"; + break; + case PCRE_ERROR_BADENDIANNESS: + errmsg= "pcre_exec: compiled pattern passed to wrong endianness processor"; + break; + case PCRE_ERROR_JIT_BADOPTION: + errmsg= "pcre_exec: bad jit option"; + break; + case PCRE_ERROR_BADLENGTH: + errmsg= "pcre_exec: negative length"; + break; default: /* As other error codes should normally not happen, @@ -5494,7 +5565,7 @@ int Regexp_processor_pcre::pcre_exec_with_warn(const pcre *code, bool Regexp_processor_pcre::exec(const char *str, int length, int offset) { - m_pcre_exec_rc= pcre_exec_with_warn(m_pcre, NULL, str, length, offset, 0, + m_pcre_exec_rc= pcre_exec_with_warn(m_pcre, &m_pcre_extra, str, length, offset, 0, m_SubStrVec, m_subpatterns_needed * 3); return false; } @@ -5505,7 +5576,7 @@ bool Regexp_processor_pcre::exec(String *str, int offset, { if (!(str= convert_if_needed(str, &subject_converter))) return true; - m_pcre_exec_rc= pcre_exec_with_warn(m_pcre, NULL, + m_pcre_exec_rc= pcre_exec_with_warn(m_pcre, &m_pcre_extra, str->c_ptr_safe(), str->length(), offset, 0, m_SubStrVec, m_subpatterns_needed * 3); |