/**************************************************************************/
/* */
/* parsecfg - a library for parsing a configuration file */
/* Copyright (C) 1999-2001 Yuuki NINOMIYA <gm@debian.or.jp> */
/* */
/* 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; either version 2, or (at your option) */
/* any later version. */
/* */
/* 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., 59 Temple Place - Suite 330, */
/* Boston, MA 02111-1307, USA. */
/* */
/**************************************************************************/
/* $Id: parsecfg.c,v 1.4 2002/10/08 16:31:43 ozra Exp $ */
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <limits.h>
#include <errno.h>
#include "intl.h"
#include "parsecfg.h"
#ifndef GRUB_UNIX
// strcasecmp is BSD4.4 function, and VC++ does not have an implementation
#include <ctype.h>
static int strcasecmp(const char *s1, const char *s2)
{
const unsigned char *us1 = (const unsigned char *)s1;
const unsigned char *us2 = (const unsigned char *)s2;
while (tolower(*us1) == tolower(*us2++))
if (*us1++ == '\0')
return 0;
return tolower(*us1) - tolower(*--us2);
}
#endif /* ! GRUB_UNIX */
/* proto type declaration of private functions */
static void cfgFatalFunc(cfgErrorCode, const char *, int, const char *);
static void (*cfgFatal) (cfgErrorCode, const char *, int, const char *) = cfgFatalFunc; /* default error handler */
static int parse_simple(const char *file, FILE *fp, char *ptr, cfgStruct cfg[], int *line);
static int parse_values_between_braces(const char *file, FILE *fp, const char *parameter, cfgStruct cfg[], int *line, cfgFileType type, int section, const char *parameter_buf, int parameter_line);
static char *parse_word(char *ptr, char **word, cfgKeywordValue word_type);
static int store_value(cfgStruct cfg[], const char *parameter, const char *value, cfgFileType type, int section);
static int parse_ini(const char *file, FILE *fp, char *ptr, cfgStruct cfg[], int *line, int *section);
static int alloc_for_new_section(cfgStruct cfg[], int *section);
static char *get_single_line_without_first_spaces(FILE *fp, char **gotstr, int *line);
static char *rm_first_spaces(char *ptr);
static char *dynamic_fgets(FILE *fp);
static int dump_simple(FILE *fp, cfgStruct cfg[], cfgFileType type);
static int dump_ini(FILE *fp, cfgStruct cfg[], cfgFileType type, int max);
static void single_or_double_quote(const char *str, char *ret);
static int fetch_simple(const char *file, FILE *fp, char *parameter_name, void *result_value, cfgValueType value_type);
static int fetch_ini(const char *file, FILE *fp, char *parameter_name, void *result_value, cfgValueType value_type, int section_num, const char *section_name);
/* static variables */
static char **parsecfg_section_name = NULL;
static int parsecfg_maximum_section;
/*************************************************************/
/* PUBLIC FUCNCTIONS */
/*************************************************************/
/* --------------------------------------------------
NAME cfgSetFatalFunc
FUNCTION handle new error handler
INPUT f ... pointer to new error handler
OUTPUT none
-------------------------------------------------- */
void cfgSetFatalFunc(void (*f) (cfgErrorCode, const char *, int, const char *))
{
cfgFatal = f;
}
/* --------------------------------------------------
NAME cfgParse
FUNCTION parse a configuration file (main function)
INPUT file ... name of the configuration file
cfg .... array of possible variables
type ... type of the configuration file
+ CFG_SIMPLE .. simple 1:1
+ CFG_INI ..... Windows INI-like file
OUTPUT the maximum number of sections
(if type==CFG_INI then return 0)
-1 if an error occured
-------------------------------------------------- */
int cfgParse(const char *file, cfgStruct cfg[], cfgFileType type)
{
char *line_buf;
char *ptr;
int line = 0;
FILE *fp;
int error_code;
int max_cfg = -1;
fp = fopen(file, "r");
if (fp == NULL) {
cfgFatal(CFG_OPEN_FAIL, file, 0, NULL);
return (-1);
}
while ((ptr = get_single_line_without_first_spaces(fp, &line_buf, &line)) != NULL) {
switch (type) {
case CFG_SIMPLE:
if ((error_code = parse_simple(file, fp, ptr, cfg, &line)) != CFG_NO_ERROR) {
fclose(fp);
cfgFatal(error_code, file, line, line_buf);
return (-1);
}
break;
case CFG_INI:
if ((error_code = parse_ini(file, fp, ptr, cfg, &line, &max_cfg)) != CFG_NO_ERROR) {
fclose(fp);
cfgFatal(error_code, file, line, line_buf);
return (-1);
}
break;
default:
fclose(fp);
cfgFatal(CFG_INTERNAL_ERROR, file, 0, NULL);
return (-1);
}
free(line_buf);
}
fclose(fp);
parsecfg_maximum_section = max_cfg + 1;
return (parsecfg_maximum_section);
}
/* --------------------------------------------------
NAME cfgDump
FUNCTION write configuration data to a file
INPUT file ... name of the configuration file
cfg .... array of possible variables
type ... type of the configuration file
+ CFG_SIMPLE .. simple 1:1
+ CFG_INI ..... Windows INI-like file
max_section ... the maximum number of sections
(if type is CFG_INI, this arg is ignored)
OUTPUT 0 on success and -1 on error
-------------------------------------------------- */
int cfgDump(const char *file, cfgStruct cfg[], cfgFileType type, int max_section)
{
FILE *fp;
int retcode;
fp = fopen(file, "w");
if (fp == NULL) {
cfgFatal(CFG_CREATE_FAIL, file, 0, NULL);
return (-1);
}
switch (type) {
case CFG_SIMPLE:
retcode = dump_simple(fp, cfg, type);
break;
case CFG_INI:
retcode = dump_ini(fp, cfg, type, max_section);
break;
default:
fclose(fp);
cfgFatal(CFG_INTERNAL_ERROR, file, 0, NULL);
return (-1);
}
fclose(fp);
return (retcode);
}
/* --------------------------------------------------
NAME fetchVarFromCfgFile
FUNCTION fetch specified variable from configuration file
INPUT file ... name of the configuration file
parameter_name ... parameter name to fetch
result_value ... stored result
value_type ... type of variable
file_type ... type of the configuration file
+ CFG_SIMPLE .. simple 1:1
+ CFG_INI ..... Windows INI-like file
section_num ... section number (for file_type==CFG_INI)
section_name ... section name (use this if section_num<1)
OUTPUT return 0 if successful, -1 otherwise
-------------------------------------------------- */
int fetchVarFromCfgFile(const char *file, char *parameter_name, void *result_value, cfgValueType value_type, cfgFileType file_type, int section_num, const char *section_name)
{
FILE *fp;
fp = fopen(file, "r");
if (fp == NULL) {
cfgFatal(CFG_OPEN_FAIL, file, 0, NULL);
return (-1);
}
switch (file_type) {
case CFG_SIMPLE:
if (fetch_simple(file, fp, parameter_name, result_value, value_type) == 0) {
fclose(fp);
return (0);
}
break;
case CFG_INI:
if (fetch_ini(file, fp, parameter_name, result_value, value_type, section_num, section_name) == 0) {
fclose(fp);
return (0);
}
break;
default:
fclose(fp);
cfgFatal(CFG_INTERNAL_ERROR, file, 0, NULL);
return (-1);
}
fclose(fp);
return (-1);
}
/* --------------------------------------------------
NAME cfgSectionNameToNumber
FUNCTION convert section name to number
INPUT name ... section name
OUTPUT section number (0,1,2,...)
if no matching, return -1
-------------------------------------------------- */
int cfgSectionNameToNumber(const char *name)
{
int i;
for (i = 0; i < parsecfg_maximum_section; i++) {
if (strcasecmp(name, parsecfg_section_name[i]) == 0)
{
return (i);
}
}
return (-1);
}
/* --------------------------------------------------
NAME cfgSectionNumberToName
FUNCTION convert section number to name
INPUT num ... section number (0,1,2,...)
OUTPUT pointer to section name
if no section, return NULL
-------------------------------------------------- */
char *cfgSectionNumberToName(int num)
{
if (num > parsecfg_maximum_section - 1 || num < 0) {
return (NULL);
}
return (parsecfg_section_name[num]);
}
/* --------------------------------------------------
NAME cfgAllocForNewSection
FUNCTION allocate memory for new section
INPUT cfg ... array of possible variables
name .. name of new section
OUTPUT the maximum number of sections
-1 if an error occured
-------------------------------------------------- */
int cfgAllocForNewSection(cfgStruct cfg[], const char *name)
{
int result;
int section;
section = parsecfg_maximum_section - 1;
result = alloc_for_new_section(cfg, §ion);
if (result != CFG_NO_ERROR) {
cfgFatalFunc(result, "unknown", 0, "");
return (-1);
}
parsecfg_maximum_section = section + 1;
parsecfg_section_name = realloc(parsecfg_section_name, sizeof(char *) * parsecfg_maximum_section);
parsecfg_section_name[parsecfg_maximum_section - 1] = strdup(name);
return (parsecfg_maximum_section);
}
/* --------------------------------------------------
NAME cfgStoreValue
FUNCTION store the value according to cfg
INPUT cfg ......... array of possible variables
parameter ... parameter
value ....... value
type ........ type of the configuration file
section ..... section number (0,1,2,...)
OUTPUT return 0 if successful, -1 otherwise
-------------------------------------------------- */
int cfgStoreValue(cfgStruct cfg[], const char *parameter, const char *value, cfgFileType type, int section)
{
int result;
result = store_value(cfg, parameter, value, type, section);
if (result != CFG_NO_ERROR) {
cfgFatalFunc(result, "unknown", 0, "");
return (-1);
}
return (0);
}
/*************************************************************/
/* PRIVATE FUCNCTIONS */
/*************************************************************/
/* --------------------------------------------------
NAME cfgFatalFunc
FUNCTION error handler
INPUT error_code ... reason of error
file ......... the configuration file
line ......... line number causing error
str .......... strings at above line
OUTPUT none
-------------------------------------------------- */
static void cfgFatalFunc(cfgErrorCode error_code, const char *file, int line, const char *str)
{
switch (error_code) {
case CFG_OPEN_FAIL:
fprintf(stderr, _("Cannot open configuration file `%s'.\n"), file);
break;
case CFG_CREATE_FAIL:
fprintf(stderr, _("Cannot create configuration file `%s'.\n"), file);
break;
case CFG_SYNTAX_ERROR:
fprintf(stderr, _("%s(%d): %s\nSyntax error\n"), file, line, str);
break;
case CFG_WRONG_PARAMETER:
fprintf(stderr, _("%s(%d): %s\nUnrecognized parameter\n"), file, line, str);
break;
case CFG_INTERNAL_ERROR:
fprintf(stderr, _("%s(%d): %s\nInternal error\n"), file, line, str);
break;
case CFG_INVALID_NUMBER:
fprintf(stderr, _("%s(%d): %s\nInvalid number\n"), file, line, str);
break;
case CFG_OUT_OF_RANGE:
fprintf(stderr, _("%s(%d): %s\nOut of range\n"), file, line, str);
break;
case CFG_MEM_ALLOC_FAIL:
fprintf(stderr, _("%s(%d): %s\nCannot allocate memory.\n"), file, line, str);
break;
case CFG_BOOL_ERROR:
fprintf(stderr, _("%s(%d): %s\nIt must be specified TRUE or FALSE.\n"), file, line, str);
break;
case CFG_USED_SECTION:
fprintf(stderr, _("%s(%d): %s\nThe section name is already used.\n"), file, line, str);
break;
case CFG_NO_CLOSING_BRACE:
fprintf(stderr, _("%s(%d)\nThere is no closing brace.\n"), file, line);
break;
case CFG_JUST_RETURN_WITHOUT_MSG:
break;
default:
fprintf(stderr, _("%s(%d): %s\nUnexplained error\n"), file, line, str);
}
}
/* --------------------------------------------------
NAME parse_simple
FUNCTION parse as simple 1:1 file
INPUT file .. name of the configuration file
fp .... file pointer to the configuration file
ptr ... pointer of current parsing
cfg ... array of possible variables
line .. pointer to current working line
OUTPUT error code (no error is CFG_NO_ERROR)
-------------------------------------------------- */
static int parse_simple(const char *file, FILE *fp, char *ptr, cfgStruct cfg[], int *line)
{
char *parameter;
char *parameter_buf;
int parameter_line;
char *value;
int error_code;
parameter_buf = ptr;
parameter_line = *line;
if ((ptr = parse_word(ptr, ¶meter, CFG_PARAMETER)) == NULL) { /* malloc parameter */
return (CFG_SYNTAX_ERROR);
}
if (*ptr == '{') {
ptr = rm_first_spaces(ptr + 1);
if (*ptr != '\0' && *ptr != '#') {
free(parameter);
return (CFG_SYNTAX_ERROR);
}
if (parse_values_between_braces(file, fp, parameter, cfg, line, CFG_SIMPLE, 0, parameter_buf, parameter_line) != CFG_NO_ERROR) {
return (CFG_JUST_RETURN_WITHOUT_MSG); /* error handling has already done */
}
} else {
if ((ptr = parse_word(ptr, &value, CFG_VALUE)) == NULL) { /* malloc value */
free(parameter);
return (CFG_SYNTAX_ERROR);
}
if ((error_code = store_value(cfg, parameter, value, CFG_SIMPLE, 0)) != CFG_NO_ERROR) {
free(parameter);
free(value);
return (error_code);
}
free(parameter);
free(value);
}
return (CFG_NO_ERROR);
}
/* --------------------------------------------------
NAME parse_word
FUNCTION parse a word
INPUT ptr ... pointer of current parsing
word .. pointer of pointer for parsed word
(dynamic allocating)
word_type ... what word type parse as
+ CFG_PARAMETER ... parameter
+ CFG_VALUE ....... value
+ CFG_SECTION ..... section
OUTPUT new current pointer (on error, return NULL)
-------------------------------------------------- */
static char *parse_word(char *ptr, char **word, cfgKeywordValue word_type)
{
int len = 0;
cfgQuote quote_flag;
switch (*ptr) {
case '\"':
quote_flag = CFG_DOUBLE_QUOTE;
ptr++;
break;
case '\'':
quote_flag = CFG_SINGLE_QUOTE;
ptr++;
break;
default:
quote_flag = CFG_NO_QUOTE;
}
for (;;) {
if (quote_flag == CFG_NO_QUOTE) {
if (*(ptr + len) == ' ' || *(ptr + len) == '\t' || *(ptr + len) == '\0' || *(ptr + len) == '#' || (*(ptr + len) == '=' && word_type == CFG_PARAMETER) || (*(ptr + len) == ']' && word_type == CFG_SECTION)) {
break;
}
} else if (quote_flag == CFG_DOUBLE_QUOTE) {
if (*(ptr + len) == '\"') {
break;
}
} else if (quote_flag == CFG_SINGLE_QUOTE) {
if (*(ptr + len) == '\'') {
break;
}
}
if (*(ptr + len) == '\0') {
return (NULL);
}
len++;
}
if ((*word = malloc(len + 1)) == NULL) {
cfgFatalFunc(CFG_MEM_ALLOC_FAIL, "unknown", 0, "");
return (NULL);
}
strncpy(*word, ptr, len);
*(*word + len) = '\0';
ptr += (len + (quote_flag == CFG_NO_QUOTE ? 0 : 1));
ptr = rm_first_spaces(ptr);
switch (word_type) {
case CFG_PARAMETER:
if (*ptr != '=') {
free(*word);
return (NULL);
}
ptr++;
ptr = rm_first_spaces(ptr);
break;
case CFG_VALUE:
if (*ptr != '\0' && *ptr != '#') {
free(*word);
return (NULL);
}
break;
case CFG_SECTION:
if (*ptr != ']') {
free(*word);
return (NULL);
}
break;
default:
free(*word);
return (NULL);
}
return (ptr);
}
/* --------------------------------------------------
NAME store_value
FUNCTION store the value according to cfg
INPUT cfg ......... array of possible variables
parameter ... parameter
value ....... value
type ........ type of the configuration file
section ..... section number
OUTPUT error code
-------------------------------------------------- */
static int store_value(cfgStruct cfg[], const char *parameter, const char *value, cfgFileType type, int section)
{
int num;
long tmp;
unsigned long utmp;
float ftmp;
float dtmp;
char *endptr;
char *strptr;
cfgList *listptr;
for (num = 0; cfg[num].type != CFG_END; num++) {
if (strcasecmp(parameter, cfg[num].parameterName) == 0)
{
errno = 0;
switch (cfg[num].type) {
case CFG_BOOL:
if (strcasecmp(value, "TRUE") == 0 || strcasecmp(value, "YES") == 0 || strcasecmp(value, "T") == 0 || strcasecmp(value, "Y") == 0 || strcasecmp(value, "1") == 0)
{
if (type == CFG_INI) {
*(*(int **) (cfg[num].value) + section) = 1;
} else {
*(int *) (cfg[num].value) = 1;
}
return (CFG_NO_ERROR);
}
else if (strcasecmp(value, "FALSE") == 0 || strcasecmp(value, "NO") == 0 || strcasecmp(value, "F") == 0 || strcasecmp(value, "N") == 0 || strcasecmp(value, "0") == 0)
{
if (type == CFG_INI) {
*(*(int **) (cfg[num].value) + section) = 0;
} else {
*(int *) (cfg[num].value) = 0;
}
return (CFG_NO_ERROR);
}
return (CFG_BOOL_ERROR);
case CFG_STRING:
if ((strptr = malloc(strlen(value) + 1)) == NULL) {
return (CFG_MEM_ALLOC_FAIL);
}
strcpy(strptr, value);
if (type == CFG_INI) {
*(*(char ***) (cfg[num].value) + section) = strptr;
} else {
*(char **) (cfg[num].value) = strptr;
}
return (CFG_NO_ERROR);
case CFG_INT:
tmp = strtol(value, &endptr, 10);
if (*endptr) {
return (CFG_INVALID_NUMBER);
}
if (errno == ERANGE || tmp > INT_MAX || tmp < INT_MIN) {
return (CFG_OUT_OF_RANGE);
}
if (type == CFG_INI) {
*(*(int **) (cfg[num].value) + section) = tmp;
} else {
*(int *) (cfg[num].value) = tmp;
}
return (CFG_NO_ERROR);
case CFG_UINT:
utmp = strtoul(value, &endptr, 10);
if (*endptr) {
return (CFG_INVALID_NUMBER);
}
if (errno == ERANGE || utmp > UINT_MAX) {
return (CFG_OUT_OF_RANGE);
}
if (type == CFG_INI) {
*(*(unsigned int **) (cfg[num].value) + section) = utmp;
} else {
*(unsigned int *) (cfg[num].value) = utmp;
}
return (CFG_NO_ERROR);
case CFG_LONG:
tmp = strtol(value, &endptr, 10);
if (*endptr) {
return (CFG_INVALID_NUMBER);
}
if (errno == ERANGE) {
return (CFG_OUT_OF_RANGE);
}
if (type == CFG_INI) {
*(*(long **) (cfg[num].value) + section) = tmp;
} else {
*(long *) (cfg[num].value) = tmp;
}
return (CFG_NO_ERROR);
case CFG_ULONG:
utmp = strtoul(value, &endptr, 10);
if (*endptr) {
return (CFG_INVALID_NUMBER);
}
if (errno == ERANGE) {
return (CFG_OUT_OF_RANGE);
}
if (type == CFG_INI) {
*(*(unsigned long **) (cfg[num].value) + section) = utmp;
} else {
*(unsigned long *) (cfg[num].value) = utmp;
}
return (CFG_NO_ERROR);
case CFG_STRING_LIST:
if (type == CFG_INI) {
listptr = *(*(cfgList ***) (cfg[num].value) + section);
} else {
listptr = *(cfgList **) (cfg[num].value);
}
if (listptr != NULL) {
while (listptr->next != NULL) {
listptr = listptr->next;
}
if ((listptr = listptr->next = malloc(sizeof(cfgList))) == NULL) {
return (CFG_MEM_ALLOC_FAIL);
}
} else {
if ((listptr = malloc(sizeof(cfgList))) == NULL) {
return (CFG_MEM_ALLOC_FAIL);
}
if (type == CFG_INI) {
*(*(cfgList ***) (cfg[num].value) + section) = listptr;
} else {
*(cfgList **) (cfg[num].value) = listptr;
}
}
if ((strptr = malloc(strlen(value) + 1)) == NULL) {
return (CFG_MEM_ALLOC_FAIL);
}
strcpy(strptr, value);
listptr->str = strptr;
listptr->next = NULL;
return (CFG_NO_ERROR);
case CFG_FLOAT:
ftmp = strtod(value, &endptr);
if (*endptr) {
return (CFG_INVALID_NUMBER);
}
if (errno == ERANGE) {
return (CFG_OUT_OF_RANGE);
}
if (type == CFG_INI) {
*(*(float **) (cfg[num].value) + section) = ftmp;
} else {
*(float *) (cfg[num].value) = ftmp;
}
return (CFG_NO_ERROR);
case CFG_DOUBLE:
dtmp = strtod(value, &endptr);
if (*endptr) {
return (CFG_INVALID_NUMBER);
}
if (errno == ERANGE) {
return (CFG_OUT_OF_RANGE);
}
if (type == CFG_INI) {
*(*(double **) (cfg[num].value) + section) = dtmp;
} else {
*(double *) (cfg[num].value) = dtmp;
}
return (CFG_NO_ERROR);
default:
return (CFG_INTERNAL_ERROR);
}
}
}
return (CFG_WRONG_PARAMETER);
}
/* --------------------------------------------------
NAME parse_values_between_braces
FUNCTION parse values between braces
INPUT file ....... file name
fp ......... file pointer to the configuration file
parameter .. parameter
cfg ........ array of possible variables
line ....... pointer to current working line
type ....... file type
section .... section number
parameter_buf ... for error handling
parameter_line .. for error handling
OUTPUT CFG_NO_ERROR on success, CFG_JUST_RETURN_WITHOUT_MSG otherwise
-------------------------------------------------- */
static int parse_values_between_braces(const char *file, FILE *fp, const char *parameter, cfgStruct cfg[], int *line, cfgFileType type, int section, const char *parameter_buf, int parameter_line)
{
char *line_buf;
char *value;
char *ptr;
int error_code;
while ((ptr = get_single_line_without_first_spaces(fp, &line_buf, line)) != NULL) {
if (*ptr == '}') {
ptr = rm_first_spaces(ptr + 1);
if (*ptr != '\0' && *ptr != '#') {
cfgFatal(CFG_SYNTAX_ERROR, file, *line, line_buf);
return (CFG_JUST_RETURN_WITHOUT_MSG);
}
free(line_buf);
return (CFG_NO_ERROR);
}
if (parse_word(ptr, &value, CFG_VALUE) == NULL) {
cfgFatal(CFG_SYNTAX_ERROR, file, *line, line_buf);
return (CFG_JUST_RETURN_WITHOUT_MSG);
}
if ((error_code = store_value(cfg, parameter, value, type, section)) != CFG_NO_ERROR) {
if (error_code == CFG_WRONG_PARAMETER) {
cfgFatal(error_code, file, parameter_line, parameter_buf);
return (CFG_JUST_RETURN_WITHOUT_MSG);
}
cfgFatal(error_code, file, *line, line_buf);
return (CFG_JUST_RETURN_WITHOUT_MSG);
}
free(line_buf);
free(value);
}
cfgFatal(CFG_NO_CLOSING_BRACE, file, *line, NULL);
return (CFG_JUST_RETURN_WITHOUT_MSG);
}
/* --------------------------------------------------
NAME parse_ini
FUNCTION parse the configuration file as Windows INI-like file
INPUT file .. name of the configuration file
fp .... file pointer to the configuration file
ptr ... pointer of current parsing strings
cfg ... array of possible variables
line .. pointer to current working line number
section ... pointer to current section number
OUTPUT error code (no error is CFG_NO_ERROR)
-------------------------------------------------- */
static int parse_ini(const char *file, FILE *fp, char *ptr, cfgStruct cfg[], int *line, int *section)
{
char *parameter;
char *parameter_buf;
int parameter_line;
char *value;
int error_code;
int i;
if (*ptr == '[') {
if ((error_code = alloc_for_new_section(cfg, section)) != CFG_NO_ERROR) {
return (error_code);
}
ptr = rm_first_spaces(ptr + 1);
parsecfg_section_name = realloc(parsecfg_section_name, sizeof(char *) * (*section + 1));
if ((ptr = parse_word(ptr, &parsecfg_section_name[*section], CFG_SECTION)) == NULL) {
return (CFG_SYNTAX_ERROR);
}
for (i = 0; i < *section; i++) {
if (strcasecmp(parsecfg_section_name[*section], parsecfg_section_name[i]) == 0)
{
return (CFG_USED_SECTION);
}
}
ptr = rm_first_spaces(ptr + 1);
if (*ptr != '\0' && *ptr != '#') {
return (CFG_SYNTAX_ERROR);
}
return (CFG_NO_ERROR);
} else if (*section == -1) {
return (CFG_SYNTAX_ERROR);
}
parameter_buf = ptr;
parameter_line = *line;
if ((ptr = parse_word(ptr, ¶meter, CFG_PARAMETER)) == NULL) {
return (CFG_SYNTAX_ERROR);
}
if (*ptr == '{') {
ptr = rm_first_spaces(ptr + 1);
if (*ptr != '\0' && *ptr != '#') {
return (CFG_SYNTAX_ERROR);
}
if (parse_values_between_braces(file, fp, parameter, cfg, line, CFG_INI, *section, parameter_buf, parameter_line) != CFG_NO_ERROR) {
return (CFG_JUST_RETURN_WITHOUT_MSG); /* error handling has already done */
}
free(parameter);
} else {
if ((ptr = parse_word(ptr, &value, CFG_VALUE)) == NULL) {
return (CFG_SYNTAX_ERROR);
}
if ((error_code = store_value(cfg, parameter, value, CFG_INI, *section)) != CFG_NO_ERROR) {
return (error_code);
}
free(parameter);
free(value);
}
return (CFG_NO_ERROR);
}
/* --------------------------------------------------
NAME alloc_for_new_section
FUNCTION allocate memory for new section
INPUT cfg ....... array of possible variables
section ... pointer to current section number
OUTPUT error code
-------------------------------------------------- */
static int alloc_for_new_section(cfgStruct cfg[], int *section)
{
int num;
void *ptr;
(*section)++;
for (num = 0; cfg[num].type != CFG_END; num++) {
switch (cfg[num].type) {
case CFG_BOOL:
case CFG_INT:
case CFG_UINT:
if (*section == 0) {
*(int **) (cfg[num].value) = NULL;
}
if ((ptr = realloc(*(int **) (cfg[num].value), sizeof(int) * (*section + 1))) == NULL) {
return (CFG_MEM_ALLOC_FAIL);
}
*(int **) (cfg[num].value) = ptr;
if (cfg[num].type == CFG_BOOL) {
*(*((int **) (cfg[num].value)) + *section) = -1;
} else {
*(*((int **) (cfg[num].value)) + *section) = 0;
}
break;
case CFG_LONG:
case CFG_ULONG:
if (*section == 0) {
*(long **) (cfg[num].value) = NULL;
}
if ((ptr = realloc(*(long **) (cfg[num].value), sizeof(long) * (*section + 1))) == NULL) {
return (CFG_MEM_ALLOC_FAIL);
}
*(long **) (cfg[num].value) = ptr;
*(*((long **) (cfg[num].value)) + *section) = 0;
break;
case CFG_STRING:
if (*section == 0) {
*(char ***) (cfg[num].value) = NULL;
}
if ((ptr = realloc(*(char ***) (cfg[num].value), sizeof(char *) * (*section + 1))) == NULL) {
return (CFG_MEM_ALLOC_FAIL);
}
*(char ***) (cfg[num].value) = ptr;
*(*(char ***) (cfg[num].value) + *section) = NULL;
break;
case CFG_STRING_LIST:
if (*section == 0) {
*(cfgList ***) (cfg[num].value) = NULL;
}
if ((ptr = realloc(*(cfgList ***) (cfg[num].value), sizeof(cfgList *) * (*section + 1))) == NULL) {
return (CFG_MEM_ALLOC_FAIL);
}
*(cfgList ***) (cfg[num].value) = ptr;
*(*(cfgList ***) (cfg[num].value) + *section) = NULL;
break;
case CFG_FLOAT:
if (*section == 0) {
*(float **) (cfg[num].value) = NULL;
}
if ((ptr = realloc(*(float **) (cfg[num].value), sizeof(float) * (*section + 1))) == NULL) {
return (CFG_MEM_ALLOC_FAIL);
}
*(float **) (cfg[num].value) = ptr;
*(*((float **) (cfg[num].value)) + *section) = 0;
break;
case CFG_DOUBLE:
if (*section == 0) {
*(double **) (cfg[num].value) = NULL;
}
if ((ptr = realloc(*(double **) (cfg[num].value), sizeof(double) * (*section + 1))) == NULL) {
return (CFG_MEM_ALLOC_FAIL);
}
*(double **) (cfg[num].value) = ptr;
*(*((double **) (cfg[num].value)) + *section) = 0;
break;
default:
return (CFG_INTERNAL_ERROR);
}
}
return (CFG_NO_ERROR);
}
/* --------------------------------------------------
NAME rm_first_spaces
FUNCTION remove lead-off spaces and tabs in the string
INPUT ptr ... pointer to string
OUTPUT new poniter after removing
-------------------------------------------------- */
static char *rm_first_spaces(char *ptr)
{
while (*ptr == ' ' || *ptr == '\t') {
ptr++;
}
return (ptr);
}
/* --------------------------------------------------
NAME get_single_line_without_first_spaces
FUNCTION get a single line without lead-off spaces
and tabs from file
INPUT fp ....... file pointer
gotptr ... pointer stored got string
line ..... pointer to line number
OUTPUT new pointer after removing
-------------------------------------------------- */
static char *get_single_line_without_first_spaces(FILE *fp, char **gotstr, int *line)
{
char *ptr;
for (;;) {
if ((*gotstr = dynamic_fgets(fp)) == NULL) {
return (NULL);
}
(*line)++;
ptr = rm_first_spaces(*gotstr);
if (*ptr != '#' && *ptr != '\0') {
return (ptr);
}
free(*gotstr);
}
}
/* --------------------------------------------------
NAME dynamic_fgets
FUNCTION fgets with dynamic allocated memory
INPUT fp ... file pointer
OUTPUT pointer to got strings
NULL on error
-------------------------------------------------- */
static char *dynamic_fgets(FILE *fp)
{
char *ptr;
char temp[128];
int i;
ptr = malloc(1);
if (ptr == NULL) {
cfgFatalFunc(CFG_MEM_ALLOC_FAIL, "unknown", 0, "");
return (NULL);
}
*ptr = '\0';
for (i = 0;; i++) {
if (fgets(temp, 128, fp) == NULL) {
if (ferror(fp) != 0 || i == 0) {
free(ptr);
return (NULL);
}
return (ptr);
}
ptr = realloc(ptr, 127 * (i + 1) + 1);
if (ptr == NULL) {
cfgFatalFunc(CFG_MEM_ALLOC_FAIL, "unknown", 0, "");
return (NULL);
}
strcat(ptr, temp);
if (strchr(temp, '\n') != NULL) {
*strchr(ptr, '\n') = '\0';
return (ptr);
}
}
}
/* --------------------------------------------------
NAME dump_simple
FUNCTION
INPUT
OUTPUT 0 on success, -1 on error
-------------------------------------------------- */
static int dump_simple(FILE *fp, cfgStruct cfg[], cfgFileType type)
{
int i;
char c[2];
cfgList *l;
for (i = 0; cfg[i].type != CFG_END; i++) {
switch (cfg[i].type) {
case CFG_BOOL:
fprintf(fp, "%s\t= %s\n", cfg[i].parameterName, (*(int *) (cfg[i].value)) ? "True" : "False");
break;
case CFG_INT:
fprintf(fp, "%s\t= %d\n", cfg[i].parameterName, *(int *) (cfg[i].value));
break;
case CFG_UINT:
fprintf(fp, "%s\t= %u\n<