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comp_err.c
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comp_err.c
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/*
Copyright (c) 2000, 2013, Oracle and/or its affiliates
Copyright (c) 2008, 2011, Monty Program Ab
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; version 2 of the License.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
/*
Written by Anjuta Widenius
*/
/*
Creates one include file and multiple language-error message files from one
multi-language text file.
*/
#include <my_global.h>
#include <m_ctype.h>
#include <my_sys.h>
#include <m_string.h>
#include <my_getopt.h>
#include <my_dir.h>
#define MAX_ROWS 3000
#define ERRORS_PER_RANGE 1000
#define MAX_SECTIONS 4
#define HEADER_LENGTH 32 /* Length of header in errmsg.sys */
#define ERRMSG_VERSION 4 /* Version number of errmsg.sys */
#define DEFAULT_CHARSET_DIR "../sql/share/charsets"
#define ER_PREFIX "ER_"
#define ER_PREFIX2 "MARIA_ER_"
#define WARN_PREFIX "WARN_"
static char *OUTFILE= (char*) "errmsg.sys";
static char *HEADERFILE= (char*) "mysqld_error.h";
static char *NAMEFILE= (char*) "mysqld_ername.h";
static char *STATEFILE= (char*) "sql_state.h";
static char *TXTFILE= (char*) "../sql/share/errmsg-utf8.txt";
static char *DATADIRECTORY= (char*) "../sql/share/";
#ifndef DBUG_OFF
static char *default_dbug_option= (char*) "d:t:O,/tmp/comp_err.trace";
#endif
/* Header for errmsg.sys files */
uchar file_head[]= { 254, 254, 2, ERRMSG_VERSION };
/* Store positions to each error message row to store in errmsg.sys header */
uint file_pos[MAX_ROWS+1];
uint section_count,section_start;
uchar section_header[MAX_SECTIONS*2];
const char *empty_string= ""; /* For empty states */
/*
Default values for command line options. See getopt structure for definitions
for these.
*/
const char *default_language= "eng";
uint er_offset= 1000;
my_bool info_flag= 0;
/* Storage of one error message row (for one language) */
struct message
{
char *lang_short_name;
char *text;
};
/* Storage for languages and charsets (from start of error text file) */
struct languages
{
char *lang_long_name; /* full name of the language */
char *lang_short_name; /* abbreviation of the lang. */
char *charset; /* Character set name */
struct languages *next_lang; /* Pointer to next language */
};
/* Name, code and texts (for all lang) for one error message */
struct errors
{
const char *er_name; /* Name of the error (ER_HASHCK) */
uint d_code; /* Error code number */
const char *sql_code1; /* sql state */
const char *sql_code2; /* ODBC state */
struct errors *next_error; /* Pointer to next error */
DYNAMIC_ARRAY msg; /* All language texts for this error */
};
static struct my_option my_long_options[]=
{
#ifdef DBUG_OFF
{"debug", '#', "This is a non-debug version. Catch this and exit",
0, 0, 0, GET_DISABLED, OPT_ARG, 0, 0, 0, 0, 0, 0},
#else
{"debug", '#', "Output debug log", &default_dbug_option,
&default_dbug_option, 0, GET_STR, OPT_ARG, 0, 0, 0, 0, 0, 0},
#endif
{"debug-info", 'T', "Print some debug info at exit.", &info_flag,
&info_flag, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
{"help", '?', "Displays this help and exits.", 0, 0, 0, GET_NO_ARG,
NO_ARG, 0, 0, 0, 0, 0, 0},
{"version", 'V', "Prints version", 0, 0, 0, GET_NO_ARG,
NO_ARG, 0, 0, 0, 0, 0, 0},
{"charset", 'C', "Charset dir",
(char**) &charsets_dir, (char**) &charsets_dir,
0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
{"in_file", 'F', "Input file", &TXTFILE, &TXTFILE,
0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
{"out_dir", 'D', "Output base directory", &DATADIRECTORY, &DATADIRECTORY,
0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
{"out_file", 'O', "Output filename (errmsg.sys)", &OUTFILE,
&OUTFILE, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
{"header_file", 'H', "mysqld_error.h file ", &HEADERFILE,
&HEADERFILE, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
{"name_file", 'N', "mysqld_ername.h file ", &NAMEFILE,
&NAMEFILE, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
{"state_file", 'S', "sql_state.h file", &STATEFILE,
&STATEFILE, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
{0, 0, 0, 0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0}
};
static struct errors *generate_empty_message(uint dcode, my_bool skip);
static struct languages *parse_charset_string(char *str);
static struct errors *parse_error_string(char *ptr, int er_count);
static struct message *parse_message_string(struct message *new_message,
char *str);
static struct message *find_message(struct errors *err, const char *lang,
my_bool no_default);
static int check_message_format(struct errors *err,
const char* mess);
static uint parse_input_file(const char *file_name, struct errors **top_error,
struct languages **top_language,
uint *error_count);
static int get_options(int *argc, char ***argv);
static void print_version(void);
static void usage(void);
static my_bool get_one_option(int optid, const struct my_option *opt,
char *argument);
static char *parse_text_line(char *pos);
static int copy_rows(FILE * to, char *row, int row_nr, long start_pos);
static char *parse_default_language(char *str);
static uint parse_error_offset(char *str);
static char *skip_delimiters(char *str);
static char *get_word(char **str);
static char *find_end_of_word(char *str);
static void clean_up(struct languages *lang_head, struct errors *error_head);
static int create_header_files(struct errors *error_head);
static int create_sys_files(struct languages *lang_head,
struct errors *error_head, uint max_error,
uint error_count);
int main(int argc, char *argv[])
{
MY_INIT(argv[0]);
{
uint max_error, error_count;
struct errors *error_head= NULL;
struct languages *lang_head= NULL;
DBUG_ENTER("main");
charsets_dir= DEFAULT_CHARSET_DIR;
my_umask_dir= 0777;
if (get_options(&argc, &argv))
goto err;
if (!(max_error= parse_input_file(TXTFILE, &error_head, &lang_head,
&error_count)))
{
fprintf(stderr, "Failed to parse input file %s\n", TXTFILE);
goto err;
}
if (lang_head == NULL || error_head == NULL)
{
fprintf(stderr, "Failed to parse input file %s\n", TXTFILE);
goto err;
}
if (create_header_files(error_head))
{
fprintf(stderr, "Failed to create header files\n");
goto err;
}
if (create_sys_files(lang_head, error_head, max_error, error_count))
{
fprintf(stderr, "Failed to create sys files\n");
goto err;
}
clean_up(lang_head, error_head);
DBUG_LEAVE; /* Can't use dbug after my_end() */
my_end(info_flag ? MY_CHECK_ERROR | MY_GIVE_INFO : 0);
return 0;
err:
clean_up(lang_head, error_head);
DBUG_LEAVE; /* Can't use dbug after my_end() */
my_end(info_flag ? MY_CHECK_ERROR | MY_GIVE_INFO : 0);
exit(1);
}
}
static void print_escaped_string(FILE *f, const char *str)
{
const char *tmp = str;
while (tmp[0] != 0)
{
switch (tmp[0])
{
case '\\': fprintf(f, "\\\\"); break;
case '\'': fprintf(f, "\\\'"); break;
case '\"': fprintf(f, "\\\""); break;
case '\n': fprintf(f, "\\n"); break;
case '\r': fprintf(f, "\\r"); break;
default: fprintf(f, "%c", tmp[0]);
}
tmp++;
}
}
static int create_header_files(struct errors *error_head)
{
uint er_last= 0;
uint section= 1;
FILE *er_definef, *sql_statef, *er_namef;
struct errors *tmp_error;
struct message *er_msg;
const char *er_text;
uint current_d_code;
DBUG_ENTER("create_header_files");
if (!(er_definef= my_fopen(HEADERFILE, O_WRONLY, MYF(MY_WME))))
{
DBUG_RETURN(1);
}
if (!(sql_statef= my_fopen(STATEFILE, O_WRONLY, MYF(MY_WME))))
{
my_fclose(er_definef, MYF(0));
DBUG_RETURN(1);
}
if (!(er_namef= my_fopen(NAMEFILE, O_WRONLY, MYF(MY_WME))))
{
my_fclose(er_definef, MYF(0));
my_fclose(sql_statef, MYF(0));
DBUG_RETURN(1);
}
fprintf(er_definef, "/* Autogenerated file, please don't edit */\n\n");
fprintf(sql_statef, "/* Autogenerated file, please don't edit */\n\n");
fprintf(er_namef, "/* Autogenerated file, please don't edit */\n\n");
fprintf(er_definef, "#ifndef ER_ERROR_FIRST\n");
fprintf(er_definef, "#define ER_ERROR_FIRST %d\n", error_head->d_code);
current_d_code= error_head->d_code -1;
for (tmp_error= error_head; tmp_error; tmp_error= tmp_error->next_error)
{
/*
generating mysqld_error.h
fprintf() will automatically add \r on windows
*/
if (!tmp_error->er_name)
continue; /* Placeholder for gap */
while (tmp_error->d_code > current_d_code + 1)
{
uint next_range= (((current_d_code + ERRORS_PER_RANGE) /
ERRORS_PER_RANGE) * ERRORS_PER_RANGE);
fprintf(er_definef, "#define ER_ERROR_LAST_SECTION_%d %d\n", section,
current_d_code);
fprintf(er_definef, "\n/* New section */\n\n");
fprintf(er_definef, "#define ER_ERROR_FIRST_SECTION_%d %d\n", section+1,
MY_MIN(tmp_error->d_code, next_range));
section++;
current_d_code= MY_MIN(tmp_error->d_code, next_range);
}
current_d_code= tmp_error->d_code;
fprintf(er_definef, "#define %s %u\n", tmp_error->er_name,
tmp_error->d_code);
er_last= tmp_error->d_code;
/* generating sql_state.h file */
if (tmp_error->sql_code1[0] || tmp_error->sql_code2[0])
fprintf(sql_statef,
"{ %-40s,\"%s\", \"%s\" },\n", tmp_error->er_name,
tmp_error->sql_code1, tmp_error->sql_code2);
/*generating er_name file */
er_msg= find_message(tmp_error, default_language, 0);
er_text = (er_msg ? er_msg->text : "");
fprintf(er_namef, "{ \"%s\", %d, \"", tmp_error->er_name,
tmp_error->d_code);
print_escaped_string(er_namef, er_text);
fprintf(er_namef, "\" },\n");
}
/* finishing off with mysqld_error.h */
fprintf(er_definef, "#define ER_ERROR_LAST %d\n", er_last);
fprintf(er_definef, "#endif /* ER_ERROR_FIRST */\n");
my_fclose(er_definef, MYF(0));
my_fclose(sql_statef, MYF(0));
my_fclose(er_namef, MYF(0));
DBUG_RETURN(0);
}
static int create_sys_files(struct languages *lang_head,
struct errors *error_head,
uint max_error,
uint error_count)
{
FILE *to;
uint csnum= 0, i, row_nr;
ulong length;
uchar head[HEADER_LENGTH];
char outfile[FN_REFLEN], *outfile_end;
long start_pos;
struct message *tmp;
struct languages *tmp_lang;
struct errors *tmp_error;
MY_STAT stat_info;
DBUG_ENTER("create_sys_files");
/*
going over all languages and assembling corresponding error messages
*/
for (tmp_lang= lang_head; tmp_lang; tmp_lang= tmp_lang->next_lang)
{
/* setting charset name */
if (!(csnum= get_charset_number(tmp_lang->charset, MY_CS_PRIMARY)))
{
fprintf(stderr, "Unknown charset '%s' in '%s'\n", tmp_lang->charset,
TXTFILE);
DBUG_RETURN(1);
}
outfile_end= strxmov(outfile, DATADIRECTORY,
tmp_lang->lang_long_name, NullS);
if (!my_stat(outfile, &stat_info,MYF(0)))
{
if (my_mkdir(outfile, 0777,MYF(0)) < 0)
{
fprintf(stderr, "Can't creqate output directory for %s\n",
outfile);
DBUG_RETURN(1);
}
}
strxmov(outfile_end, FN_ROOTDIR, OUTFILE, NullS);
if (!(to= my_fopen(outfile, O_WRONLY | FILE_BINARY, MYF(MY_WME))))
DBUG_RETURN(1);
/* 2 is for 2 bytes to store row position / error message */
start_pos= (long) (HEADER_LENGTH + (error_count + section_count) * 2);
my_fseek(to, start_pos, 0, MYF(0));
row_nr= 0;
for (tmp_error= error_head; tmp_error; tmp_error= tmp_error->next_error)
{
/* dealing with messages */
tmp= find_message(tmp_error, tmp_lang->lang_short_name, FALSE);
if (!tmp)
{
fprintf(stderr,
"Did not find message for %s neither in %s nor in default "
"language\n", tmp_error->er_name, tmp_lang->lang_short_name);
goto err;
}
if (tmp->text) /* If not skipped row */
{
if (copy_rows(to, tmp->text, row_nr, start_pos))
{
fprintf(stderr, "Failed to copy rows to %s\n", outfile);
goto err;
}
row_nr++;
}
}
DBUG_ASSERT(error_count == row_nr);
/* continue with header of the errmsg.sys file */
length= (ulong) (my_ftell(to, MYF(0)) - HEADER_LENGTH -
(error_count + section_count) * 2);
bzero((uchar*) head, HEADER_LENGTH);
bmove((uchar*) head, (uchar*) file_head, 4);
head[4]= 1;
int4store(head + 6, length);
int2store(head + 10, max_error); /* Max error */
int2store(head + 12, row_nr);
int2store(head + 14, section_count);
head[30]= csnum;
my_fseek(to, 0l, MY_SEEK_SET, MYF(0));
if (my_fwrite(to, (uchar*) head, HEADER_LENGTH, MYF(MY_WME | MY_FNABP)) ||
my_fwrite(to, (uchar*) section_header, section_count*2,
MYF(MY_WME | MY_FNABP)))
goto err;
file_pos[row_nr]= (ftell(to) - start_pos);
for (i= 0; i < row_nr; i++)
{
/* Store length of each string */
int2store(head, file_pos[i+1] - file_pos[i]);
if (my_fwrite(to, (uchar*) head, 2, MYF(MY_WME | MY_FNABP)))
goto err;
}
my_fclose(to, MYF(0));
}
DBUG_RETURN(0);
err:
my_fclose(to, MYF(0));
DBUG_RETURN(1);
}
static void clean_up(struct languages *lang_head, struct errors *error_head)
{
struct languages *tmp_lang, *next_language;
struct errors *tmp_error, *next_error;
uint count, i;
my_free((void*) default_language);
for (tmp_lang= lang_head; tmp_lang; tmp_lang= next_language)
{
next_language= tmp_lang->next_lang;
my_free(tmp_lang->lang_short_name);
my_free(tmp_lang->lang_long_name);
my_free(tmp_lang->charset);
my_free(tmp_lang);
}
for (tmp_error= error_head; tmp_error; tmp_error= next_error)
{
next_error= tmp_error->next_error;
count= (tmp_error->msg).elements;
for (i= 0; i < count; i++)
{
struct message *tmp;
tmp= dynamic_element(&tmp_error->msg, i, struct message*);
my_free(tmp->lang_short_name);
my_free(tmp->text);
}
delete_dynamic(&tmp_error->msg);
if (tmp_error->sql_code1[0])
my_free((void*) tmp_error->sql_code1);
if (tmp_error->sql_code2[0])
my_free((void*) tmp_error->sql_code2);
my_free((void*) tmp_error->er_name);
my_free(tmp_error);
}
}
static uint parse_input_file(const char *file_name, struct errors **top_error,
struct languages **top_lang, uint *error_count)
{
FILE *file;
char *str, buff[1000];
struct errors *current_error= 0, **tail_error= top_error;
struct message current_message;
uint rcount= 0, skiped_errors= 0;
my_bool er_offset_found= 0;
DBUG_ENTER("parse_input_file");
*top_error= 0;
*top_lang= 0;
*error_count= 0;
section_start= er_offset;
section_count= 0;
if (!(file= my_fopen(file_name, O_RDONLY | O_SHARE, MYF(MY_WME))))
DBUG_RETURN(0);
while ((str= fgets(buff, sizeof(buff), file)))
{
my_bool skip;
if (is_prefix(str, "language"))
{
if (!(*top_lang= parse_charset_string(str)))
{
fprintf(stderr, "Failed to parse the charset string!\n");
DBUG_RETURN(0);
}
continue;
}
skip= 0;
if (is_prefix(str, "start-error-number") ||
(skip= is_prefix(str, "skip-to-error-number")))
{
uint tmp_er_offset;
if (!(tmp_er_offset= parse_error_offset(str)))
{
fprintf(stderr, "Failed to parse the error offset string!\n");
DBUG_RETURN(0);
}
if (skip)
{
if (section_count >= MAX_SECTIONS-1)
{
fprintf(stderr, "Found too many skip-to-error-number entries. "
"We only support %d entries\n", MAX_SECTIONS);
DBUG_RETURN(0);
}
int2store(section_header + section_count*2,
er_offset +rcount - section_start);
section_count++;
section_start= tmp_er_offset;
}
if (!er_offset_found)
{
er_offset_found= 1;
er_offset= section_start= tmp_er_offset;
}
else
{
/* Create empty error messages between er_offset and tmp_err_offset */
if (tmp_er_offset < er_offset + rcount)
{
fprintf(stderr, "new start-error-number %u is smaller than current error message: %u\n", tmp_er_offset, er_offset + rcount);
DBUG_RETURN(0);
}
for ( ; er_offset + rcount < tmp_er_offset ; rcount++)
{
skiped_errors+= skip != 0;
current_error= generate_empty_message(er_offset + rcount, skip);
*tail_error= current_error;
tail_error= ¤t_error->next_error;
}
}
continue;
}
if (is_prefix(str, "default-language"))
{
if (!(default_language= parse_default_language(str)))
{
DBUG_PRINT("info", ("default_slang: %s", default_language));
fprintf(stderr,
"Failed to parse the default language line. Aborting\n");
DBUG_RETURN(0);
}
continue;
}
if (*str == '\t' || *str == ' ')
{
/* New error message in another language for previous error */
if (!current_error)
{
fprintf(stderr, "Error in the input file format\n");
DBUG_RETURN(0);
}
if (!parse_message_string(¤t_message, str))
{
fprintf(stderr, "Failed to parse message string for error '%s'",
current_error->er_name);
DBUG_RETURN(0);
}
if (find_message(current_error, current_message.lang_short_name, TRUE))
{
fprintf(stderr, "Duplicate message string for error '%s'"
" in language '%s'\n",
current_error->er_name, current_message.lang_short_name);
DBUG_RETURN(0);
}
if (check_message_format(current_error, current_message.text))
{
fprintf(stderr, "Wrong formatspecifier of error message string"
" for error '%s' in language '%s'\n",
current_error->er_name, current_message.lang_short_name);
DBUG_RETURN(0);
}
if (insert_dynamic(¤t_error->msg, (uchar *) & current_message))
DBUG_RETURN(0);
continue;
}
if (is_prefix(str, ER_PREFIX) || is_prefix(str, WARN_PREFIX) ||
is_prefix(str, ER_PREFIX2))
{
if (!(current_error= parse_error_string(str, rcount)))
{
fprintf(stderr, "Failed to parse the error name string\n");
DBUG_RETURN(0);
}
rcount++; /* Count number of unique errors */
/* add error to the list */
*tail_error= current_error;
tail_error= ¤t_error->next_error;
continue;
}
if (*str == '#' || *str == '\n')
continue; /* skip comment or empty lines */
fprintf(stderr, "Wrong input file format. Stop!\nLine: %s\n", str);
DBUG_RETURN(0);
}
int2store(section_header + section_count*2,
er_offset + rcount - section_start);
section_count++;
*error_count= rcount - skiped_errors;
*tail_error= 0; /* Mark end of list */
my_fclose(file, MYF(0));
DBUG_RETURN(rcount);
}
static uint parse_error_offset(char *str)
{
char *soffset, *end;
int error;
uint ioffset;
DBUG_ENTER("parse_error_offset");
/* skipping the "start-error-number" keyword and spaces after it */
str= find_end_of_word(str);
str= skip_delimiters(str);
if (!*str)
DBUG_RETURN(0); /* Unexpected EOL: No error number after the keyword */
/* reading the error offset */
if (!(soffset= get_word(&str)))
DBUG_RETURN(0); /* OOM: Fatal error */
DBUG_PRINT("info", ("default_error_offset: %s", soffset));
/* skipping space(s) and/or tabs after the error offset */
str= skip_delimiters(str);
DBUG_PRINT("info", ("str: %s", str));
if (*str)
{
/* The line does not end with the error offset -> error! */
fprintf(stderr, "The error offset line does not end with an error offset");
DBUG_RETURN(0);
}
DBUG_PRINT("info", ("str: %s", str));
end= 0;
ioffset= (uint) my_strtoll10(soffset, &end, &error);
my_free(soffset);
DBUG_RETURN(ioffset);
}
/* Parsing of the default language line. e.g. "default-language eng" */
static char *parse_default_language(char *str)
{
char *slang;
DBUG_ENTER("parse_default_language");
/* skipping the "default-language" keyword */
str= find_end_of_word(str);
/* skipping space(s) and/or tabs after the keyword */
str= skip_delimiters(str);
if (!*str)
{
fprintf(stderr,
"Unexpected EOL: No short language name after the keyword\n");
DBUG_RETURN(0);
}
/* reading the short language tag */
if (!(slang= get_word(&str)))
DBUG_RETURN(0); /* OOM: Fatal error */
DBUG_PRINT("info", ("default_slang: %s", slang));
str= skip_delimiters(str);
DBUG_PRINT("info", ("str: %s", str));
if (*str)
{
fprintf(stderr,
"The default language line does not end with short language "
"name\n");
DBUG_RETURN(0);
}
DBUG_PRINT("info", ("str: %s", str));
DBUG_RETURN(slang);
}
/*
Find the message in a particular language
SYNOPSIS
find_message()
err Error to find message for
lang Language of message to find
no_default Don't return default (English) if does not exit
RETURN VALUE
Returns the message structure if one is found, or NULL if not.
*/
static struct message *find_message(struct errors *err, const char *lang,
my_bool no_default)
{
struct message *tmp, *return_val= 0;
uint i, count;
DBUG_ENTER("find_message");
count= (err->msg).elements;
for (i= 0; i < count; i++)
{
tmp= dynamic_element(&err->msg, i, struct message*);
if (!strcmp(tmp->lang_short_name, lang))
DBUG_RETURN(tmp);
if (!strcmp(tmp->lang_short_name, default_language))
{
return_val= tmp;
}
}
DBUG_RETURN(no_default ? NULL : return_val);
}
/*
Check message format specifiers against error message for
previous language
SYNOPSIS
checksum_format_specifier()
msg String for which to generate checksum
for the format specifiers
RETURN VALUE
Returns the checksum for all the characters of the
format specifiers
Ex.
"text '%-64.s' text part 2 %d'"
^^^^^^ ^^
characters will be xored to form checksum
NOTE:
Does not support format specifiers with positional args
like "%2$s" but that is not yet supported by my_vsnprintf
either.
*/
static ha_checksum checksum_format_specifier(const char* msg)
{
ha_checksum chksum= 0;
const uchar* p= (const uchar*) msg;
const uchar* start= NULL;
uint32 num_format_specifiers= 0;
while (*p)
{
if (*p == '%')
{
start= p+1; /* Entering format specifier */
num_format_specifiers++;
}
else if (start)
{
switch(*p) {
case 'd':
case 'u':
case 'x':
case 's':
case 'M':
chksum= my_checksum(chksum, (uchar*) start, (uint) (p + 1 - start));
start= 0; /* Not in format specifier anymore */
break;
default:
break;
}
}
p++;
}
if (start)
{
/* Still inside a format specifier after end of string */
fprintf(stderr, "Still inside formatspecifier after end of string"
" in'%s'\n", msg);
DBUG_ASSERT(start==0);
}
/* Add number of format specifiers to checksum as extra safeguard */
chksum+= num_format_specifiers;
return chksum;
}
/*
Check message format specifiers against error message for
previous language
SYNOPSIS
check_message_format()
err Error to check message for
mess Message to check
RETURN VALUE
Returns 0 if no previous error message or message format is ok
*/
static int check_message_format(struct errors *err,
const char* mess)
{
struct message *first;
DBUG_ENTER("check_message_format");
/* Get first message(if any) */
if ((err->msg).elements == 0)
DBUG_RETURN(0); /* No previous message to compare against */
first= dynamic_element(&err->msg, 0, struct message*);
DBUG_ASSERT(first != NULL);
if (checksum_format_specifier(first->text) !=
checksum_format_specifier(mess))
{
/* Check sum of format specifiers failed, they should be equal */
DBUG_RETURN(1);
}
DBUG_RETURN(0);
}
/*
Skips spaces and or tabs till the beginning of the next word
Returns pointer to the beginning of the first character of the word
*/
static char *skip_delimiters(char *str)
{
DBUG_ENTER("skip_delimiters");
for (;
*str == ' ' || *str == ',' || *str == '\t' || *str == '\r' ||
*str == '\n' || *str == '='; str++)
;
DBUG_RETURN(str);
}
/*
Skips all characters till meets with space, or tab, or EOL
*/
static char *find_end_of_word(char *str)
{
DBUG_ENTER("find_end_of_word");
for (;
*str != ' ' && *str != '\t' && *str != '\n' && *str != '\r' && *str &&
*str != ',' && *str != ';' && *str != '='; str++)
;
DBUG_RETURN(str);
}
/* Read the word starting from *str */
static char *get_word(char **str)
{
char *start= *str;
DBUG_ENTER("get_word");
*str= find_end_of_word(start);
DBUG_RETURN(my_strndup(start, (uint) (*str - start),
MYF(MY_WME | MY_FAE)));
}
/*
Parsing the string with short_lang - message text. Code - to
remember to which error does the text belong
*/
static struct message *parse_message_string(struct message *new_message,
char *str)
{
char *start;
DBUG_ENTER("parse_message_string");
DBUG_PRINT("enter", ("str: %s", str));
/*skip space(s) and/or tabs in the beginning */
while (*str == ' ' || *str == '\t' || *str == '\n')
str++;
if (!*str)
{
/* It was not a message line, but an empty line. */
DBUG_PRINT("info", ("str: %s", str));
DBUG_RETURN(0);
}
/* reading the short lang */
start= str;
while (*str != ' ' && *str != '\t' && *str)
str++;
if (!(new_message->lang_short_name=
my_strndup(start, (uint) (str - start),
MYF(MY_WME | MY_FAE))))
DBUG_RETURN(0); /* Fatal error */
DBUG_PRINT("info", ("msg_slang: %s", new_message->lang_short_name));
/*skip space(s) and/or tabs after the lang */
while (*str == ' ' || *str == '\t' || *str == '\n')
str++;
if (*str != '"')
{
fprintf(stderr, "Unexpected EOL");
DBUG_PRINT("info", ("str: %s", str));
DBUG_RETURN(0);
}
/* reading the text */
start= str + 1;
str= parse_text_line(start);
if (!(new_message->text= my_strndup(start, (uint) (str - start),
MYF(MY_WME | MY_FAE))))
DBUG_RETURN(0); /* Fatal error */
DBUG_PRINT("info", ("msg_text: %s", new_message->text));
DBUG_RETURN(new_message);
}
static struct errors *generate_empty_message(uint d_code, my_bool skip)
{
struct errors *new_error;
struct message message;
/* create a new element */
if (!(new_error= (struct errors *) my_malloc(sizeof(*new_error),
MYF(MY_WME))))
return(0);
if (my_init_dynamic_array(&new_error->msg, sizeof(struct message), 0, 1,
MYF(0)))
return(0); /* OOM: Fatal error */
new_error->er_name= NULL;
new_error->d_code= d_code;
new_error->sql_code1= empty_string;
new_error->sql_code2= empty_string;
message.text= 0; /* If skip set, don't generate a text */
if (!(message.lang_short_name= my_strdup(default_language, MYF(MY_WME))) ||
(!skip && !(message.text= my_strdup("", MYF(MY_WME)))))
return(0);
/* Can't fail as msg is preallocated */
(void) insert_dynamic(&new_error->msg, (uchar*) &message);
return(new_error);
}
/*
Parsing the string with error name and codes; returns the pointer to
the errors struct
*/
static struct errors *parse_error_string(char *str, int er_count)
{
struct errors *new_error;
DBUG_ENTER("parse_error_string");
DBUG_PRINT("enter", ("str: %s", str));
/* create a new element */
if (!(new_error= (struct errors *) my_malloc(sizeof(*new_error),
MYF(MY_WME))))
DBUG_RETURN(0);