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/*
* Copyright (C) 2017 Amlogic, Inc. All rights reserved.
* *
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 of the License, 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.
* *
Description:
*/
#include "ini_config.h"
#include "ini_core.h"
#define MAX_SECTION 50
#define MAX_NAME 50
/* Strip whitespace chars off end of given string, in place. Return s. */
static char* rstrip(char* s) {
char* p = s + strlen(s);
while (p > s && isspace((unsigned char) (*--p)))
*p = '\0';
return s;
}
/* Return pointer to first non-whitespace char in given string. */
static char* lskip(const char* s) {
while (*s && isspace((unsigned char) (*s)))
s++;
return (char*) s;
}
/* Return pointer to first char c or ';' comment in given string, or pointer to
null at end of string if neither found. ';' must be prefixed by a whitespace
character to register as a comment. */
static char* find_char_or_comment(const char* s, char c) {
int was_whitespace = 0;
while (*s && *s != c && !(was_whitespace && *s == ';')) {
was_whitespace = isspace((unsigned char) (*s));
s++;
}
return (char*) s;
}
/* Version of strncpy that ensures dest (size bytes) is null-terminated. */
static char* strncpy0(char* dest, const char* src, size_t size) {
strncpy(dest, src, size);
dest[size - 1] = '\0';
return dest;
}
#if (defined CC_COMPILE_IN_PC || defined CC_COMPILE_IN_ANDROID)
/* See documentation in header file. */
int ini_parse_file(FILE* file,
int (*handler)(void*, const char*, const char*, const char*),
void* user) {
/* Uses a fair bit of stack (use heap instead if you need to) */
#if INI_USE_STACK
char line[INI_MAX_LINE];
#else
char* line;
#endif
char section[MAX_SECTION] = "";
char prev_name[MAX_NAME] = "";
char* start;
char* end;
char* name;
char* value;
int lineno = 0;
int error = 0;
#if !INI_USE_STACK
line = (char*) malloc(INI_MAX_LINE);
if (!line) {
return -2;
}
#endif
/* Scan through file line by line */
while (fgets(line, INI_MAX_LINE, file) != NULL) {
lineno++;
start = line;
#if INI_ALLOW_BOM
if (lineno == 1 && (unsigned char)start[0] == 0xEF &&
(unsigned char)start[1] == 0xBB &&
(unsigned char)start[2] == 0xBF) {
start += 3;
}
#endif
start = lskip(rstrip(start));
if (*start == ';' || *start == '#') {
/* Per Python ConfigParser, allow '#' comments at start of line */
}
else if (*start == '[') {
/* A "[section]" line */
end = find_char_or_comment(start + 1, ']');
if (*end == ']') {
*end = '\0';
strncpy0(section, start + 1, sizeof(section));
*prev_name = '\0';
} else if (!error) {
/* No ']' found on section line */
error = lineno;
}
}
#if INI_ALLOW_MULTILINE
else if (*prev_name && *start && (start > line || strstr(start, "=") == NULL)) {
/* Non-black line with leading whitespace, treat as continuation
of previous name's value (as per Python ConfigParser). */
if (!handler(user, section, prev_name, start) && !error)
error = lineno;
}
#endif
else if (*start && *start != ';') {
/* Not a comment, must be a name[=:]value pair */
end = find_char_or_comment(start, '=');
if (*end != '=') {
end = find_char_or_comment(start, ':');
}
if (*end == '=' || *end == ':') {
*end = '\0';
name = rstrip(start);
value = lskip(end + 1);
end = find_char_or_comment(value, '\0');
if (*end == ';')
*end = '\0';
rstrip(value);
/* Valid name[=:]value pair found, call handler */
strncpy0(prev_name, name, sizeof(prev_name));
if (!handler(user, section, name, value) && !error)
error = lineno;
} else if (!error) {
/* No '=' or ':' found on name[=:]value line */
error = lineno;
}
}
}
#if !INI_USE_STACK
free(line);
#endif
return error;
}
#endif
int ini_parse_mem(const char* buf,
int (*handler)(void* user, const char* section, const char* name,
const char* value), void* user) {
char* bufptr = (char*) buf;
/* Uses a fair bit of stack (use heap instead if you need to) */
#if INI_USE_STACK
char line[INI_MAX_LINE];
#else
char* line;
#endif
char section[MAX_SECTION] = "";
char prev_name[MAX_NAME] = "";
char* start;
char* end;
char* name;
char* value;
int lineno = 0;
int error = 0;
#if !INI_USE_STACK
line = (char*) malloc(INI_MAX_LINE);
if (!line) {
return -2;
}
#endif
while (1) {
int ncount = 0;
while (*bufptr != '\0') {
if (*bufptr == '\r' || *bufptr == '\n')
break;
line[ncount] = *bufptr++;
ncount++;
}
while (*bufptr == '\r' || *bufptr == '\n')
bufptr++;
line[ncount] = 0;
if (ncount == 0)
break;
/* Scan through file line by line */
//while (fgets(line, INI_MAX_LINE, file) != NULL) {
lineno++;
start = line;
#if INI_ALLOW_BOM
if (lineno == 1 && (unsigned char)start[0] == 0xEF &&
(unsigned char)start[1] == 0xBB &&
(unsigned char)start[2] == 0xBF) {
start += 3;
}
#endif
start = lskip(rstrip(start));
if (*start == ';' || *start == '#') {
/* Per Python ConfigParser, allow '#' comments at start of line */
}
else if (*start == '[') {
/* A "[section]" line */
end = find_char_or_comment(start + 1, ']');
if (*end == ']') {
*end = '\0';
strncpy0(section, start + 1, sizeof(section));
*prev_name = '\0';
} else if (!error) {
/* No ']' found on section line */
error = lineno;
}
}
#if INI_ALLOW_MULTILINE
else if (*prev_name && *start && (start > line || strstr(start, "=") == NULL)) {
/* Non-black line with leading whitespace, treat as continuation
of previous name's value (as per Python ConfigParser). */
if (!handler(user, section, prev_name, start) && !error)
error = lineno;
}
#endif
else if (*start && *start != ';') {
/* Not a comment, must be a name[=:]value pair */
end = find_char_or_comment(start, '=');
if (*end != '=') {
end = find_char_or_comment(start, ':');
}
if (*end == '=' || *end == ':') {
*end = '\0';
name = rstrip(start);
value = lskip(end + 1);
end = find_char_or_comment(value, '\0');
if (*end == ';')
*end = '\0';
rstrip(value);
/* Valid name[=:]value pair found, call handler */
strncpy0(prev_name, name, sizeof(prev_name));
if (!handler(user, section, name, value) && !error)
error = lineno;
} else if (!error) {
/* No '=' or ':' found on name[=:]value line */
error = lineno;
}
}
}
#if !INI_USE_STACK
free(line);
#endif
return error;
}
#if (defined CC_COMPILE_IN_PC || defined CC_COMPILE_IN_ANDROID)
/* See documentation in header file. */
int ini_parse(const char* filename,
int (*handler)(void*, const char*, const char*, const char*),
void* user) {
FILE* file;
int error;
file = fopen(filename, "r");
if (!file)
return -1;
error = ini_parse_file(file, handler, user);
fclose(file);
return error;
}
#endif