diff options
Diffstat (limited to 'sql/derror.cc')
| -rw-r--r-- | sql/derror.cc | 88 |
1 files changed, 55 insertions, 33 deletions
diff --git a/sql/derror.cc b/sql/derror.cc index 0e74d411b1f..a8cfa00ad1d 100644 --- a/sql/derror.cc +++ b/sql/derror.cc @@ -14,7 +14,12 @@ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ -/* Read language depeneded messagefile */ +/** + @file + + @brief + Read language depeneded messagefile +*/ #include "mysql_priv.h" #include "mysys_err.h" @@ -23,23 +28,23 @@ static bool read_texts(const char *file_name,const char ***point, uint error_messages); static void init_myfunc_errs(void); -/* +/** Read messages from errorfile. - SYNOPSIS - init_errmessage() - - DESCRIPTION - This function can be called multiple times to reload the messages. + This function can be called multiple times to reload the messages. + If it fails to load the messages, it will fail softly by initializing + the errmesg pointer to an array of empty strings or by keeping the + old array if it exists. - RETURN + @retval FALSE OK + @retval TRUE Error */ bool init_errmessage(void) { - const char **errmsgs; + const char **errmsgs, **ptr; DBUG_ENTER("init_errmessage"); /* @@ -49,13 +54,20 @@ bool init_errmessage(void) errmsgs= my_error_unregister(ER_ERROR_FIRST, ER_ERROR_LAST); /* Read messages from file. */ - if (read_texts(ERRMSG_FILE, &errmsgs, ER_ERROR_LAST - ER_ERROR_FIRST + 1)) - DBUG_RETURN(TRUE); + if (read_texts(ERRMSG_FILE, &errmsgs, ER_ERROR_LAST - ER_ERROR_FIRST + 1) && + !errmsgs) + { + if (!(errmsgs= (const char**) my_malloc((ER_ERROR_LAST-ER_ERROR_FIRST+1)* + sizeof(char*), MYF(0)))) + DBUG_RETURN(TRUE); + for (ptr= errmsgs; ptr < errmsgs + ER_ERROR_LAST - ER_ERROR_FIRST; ptr++) + *ptr= ""; + } /* Register messages for use with my_error(). */ if (my_error_register(errmsgs, ER_ERROR_FIRST, ER_ERROR_LAST)) { - x_free((gptr) errmsgs); + x_free((uchar*) errmsgs); DBUG_RETURN(TRUE); } @@ -65,21 +77,28 @@ bool init_errmessage(void) } - /* Read text from packed textfile in language-directory */ - /* If we can't read messagefile then it's panic- we can't continue */ +/** + Read text from packed textfile in language-directory. + + If we can't read messagefile then it's panic- we can't continue. + + @todo + Convert the character set to server system character set +*/ static bool read_texts(const char *file_name,const char ***point, uint error_messages) { register uint i; - uint count,funktpos,length,textcount; + uint count,funktpos,textcount; + size_t length; File file; char name[FN_REFLEN]; - const char *buff; + uchar *buff; uchar head[32],*pos; + const char *errmsg; DBUG_ENTER("read_texts"); - *point=0; // If something goes wrong LINT_INIT(buff); funktpos=0; if ((file=my_open(fn_format(name,file_name,language,"",4), @@ -88,7 +107,7 @@ static bool read_texts(const char *file_name,const char ***point, goto err; /* purecov: inspected */ funktpos=1; - if (my_read(file,(byte*) head,32,MYF(MY_NABP))) goto err; + if (my_read(file,(uchar*) head,32,MYF(MY_NABP))) goto err; if (head[0] != (uchar) 254 || head[1] != (uchar) 254 || head[2] != 2 || head[3] != 1) goto err; /* purecov: inspected */ @@ -119,25 +138,27 @@ but it should contain at least %d error messages.\n\ Check that the above file is the right version for this program!", name,count,error_messages); VOID(my_close(file,MYF(MY_WME))); - unireg_abort(1); + DBUG_RETURN(1); } - x_free((gptr) *point); /* Free old language */ + x_free((uchar*) *point); /* Free old language */ if (!(*point= (const char**) - my_malloc((uint) (length+count*sizeof(char*)),MYF(0)))) + my_malloc((size_t) (length+count*sizeof(char*)),MYF(0)))) { funktpos=2; /* purecov: inspected */ goto err; /* purecov: inspected */ } - buff= (char*) (*point + count); + buff= (uchar*) (*point + count); - if (my_read(file,(byte*) buff,(uint) count*2,MYF(MY_NABP))) goto err; - for (i=0, pos= (uchar*) buff ; i< count ; i++) + if (my_read(file, buff, (size_t) count*2,MYF(MY_NABP))) + goto err; + for (i=0, pos= buff ; i< count ; i++) { - (*point)[i]=buff+uint2korr(pos); + (*point)[i]= (char*) buff+uint2korr(pos); pos+=2; } - if (my_read(file,(byte*) buff,(uint) length,MYF(MY_NABP))) goto err; + if (my_read(file, buff, length, MYF(MY_NABP))) + goto err; for (i=1 ; i < textcount ; i++) { @@ -149,25 +170,26 @@ Check that the above file is the right version for this program!", err: switch (funktpos) { case 2: - buff="Not enough memory for messagefile '%s'"; + errmsg= "Not enough memory for messagefile '%s'"; break; case 1: - buff="Can't read from messagefile '%s'"; + errmsg= "Can't read from messagefile '%s'"; break; default: - buff="Can't find messagefile '%s'"; + errmsg= "Can't find messagefile '%s'"; break; } - sql_print_error(buff,name); + sql_print_error(errmsg, name); err1: if (file != FERR) VOID(my_close(file,MYF(MY_WME))); - unireg_abort(1); - DBUG_RETURN(1); // keep compiler happy + DBUG_RETURN(1); } /* read_texts */ - /* Initiates error-messages used by my_func-library */ +/** + Initiates error-messages used by my_func-library. +*/ static void init_myfunc_errs() { |