FreeRDP/winpr/libwinpr/utils/ini.c
2015-06-24 09:29:13 +02:00

745 lines
13 KiB
C

/**
* WinPR: Windows Portable Runtime
* .ini config file
*
* Copyright 2014 Marc-Andre Moreau <marcandre.moreau@gmail.com>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <winpr/crt.h>
#include <winpr/ini.h>
int IniFile_Load_String(wIniFile* ini, const char* iniString)
{
long int fileSize;
ini->line = NULL;
ini->nextLine = NULL;
ini->buffer = NULL;
fileSize = strlen(iniString);
if (fileSize < 1)
return -1;
ini->buffer = (char*) malloc(fileSize + 2);
if (!ini->buffer)
return -1;
CopyMemory(ini->buffer, iniString, fileSize);
ini->buffer[fileSize] = '\n';
ini->buffer[fileSize + 1] = '\0';
ini->nextLine = strtok(ini->buffer, "\n");
return 1;
}
int IniFile_Open_File(wIniFile* ini, const char* filename)
{
if (ini->readOnly)
ini->fp = fopen(filename, "r");
else
ini->fp = fopen(filename, "w+");
if (!ini->fp)
return -1;
return 1;
}
int IniFile_Load_File(wIniFile* ini, const char* filename)
{
int fileSize;
if (IniFile_Open_File(ini, filename) < 0)
return -1;
fseek(ini->fp, 0, SEEK_END);
fileSize = ftell(ini->fp);
fseek(ini->fp, 0, SEEK_SET);
ini->line = NULL;
ini->nextLine = NULL;
ini->buffer = NULL;
if (fileSize < 1)
return -1;
ini->buffer = (char*) malloc(fileSize + 2);
if (!ini->buffer)
{
fclose(ini->fp);
ini->fp = NULL;
return -1;
}
if (fread(ini->buffer, fileSize, 1, ini->fp) != 1)
{
free(ini->buffer);
fclose(ini->fp);
ini->buffer = NULL;
ini->fp = NULL;
return -1;
}
fclose(ini->fp);
ini->fp = NULL;
ini->buffer[fileSize] = '\n';
ini->buffer[fileSize + 1] = '\0';
ini->nextLine = strtok(ini->buffer, "\n");
return 1;
}
void IniFile_Load_Finish(wIniFile* ini)
{
if (!ini)
return;
if (ini->buffer)
{
free(ini->buffer);
ini->buffer = NULL;
}
}
BOOL IniFile_Load_HasNextLine(wIniFile* ini)
{
if (!ini)
return FALSE;
return (ini->nextLine) ? TRUE : FALSE;
}
char* IniFile_Load_GetNextLine(wIniFile* ini)
{
if (!ini)
return NULL;
ini->line = ini->nextLine;
ini->nextLine = strtok(NULL, "\n");
ini->lineLength = strlen(ini->line);
return ini->line;
}
wIniFileKey* IniFile_Key_New(const char* name, const char* value)
{
wIniFileKey* key = malloc(sizeof(wIniFileKey));
if (key)
{
key->name = _strdup(name);
key->value = _strdup(value);
if (!key->name || !key->value)
{
free(key->name);
free(key->value);
free(key);
return NULL;
}
}
return key;
}
void IniFile_Key_Free(wIniFileKey* key)
{
if (!key)
return;
free(key->name);
free(key->value);
free(key);
}
wIniFileSection* IniFile_Section_New(const char* name)
{
wIniFileSection* section = malloc(sizeof(wIniFileSection));
if (!section)
return NULL;
section->name = _strdup(name);
if (!section->name)
{
free(section);
return NULL;
}
section->nKeys = 0;
section->cKeys = 64;
section->keys = (wIniFileKey**) malloc(sizeof(wIniFileKey*) * section->cKeys);
if (!section->keys)
{
free(section->name);
free(section);
return NULL;
}
return section;
}
void IniFile_Section_Free(wIniFileSection* section)
{
int index;
if (!section)
return;
for (index = 0; index < section->nKeys; index++)
{
IniFile_Key_Free(section->keys[index]);
}
free(section);
}
wIniFileSection* IniFile_GetSection(wIniFile* ini, const char* name)
{
int index;
wIniFileSection* section = NULL;
for (index = 0; index < ini->nSections; index++)
{
if (_stricmp(name, ini->sections[index]->name) == 0)
{
section = ini->sections[index];
break;
}
}
return section;
}
wIniFileSection* IniFile_AddSection(wIniFile* ini, const char* name)
{
wIniFileSection* section;
if (!name)
return NULL;
section = IniFile_GetSection(ini, name);
if (!section)
{
if ((ini->nSections + 1) >= (ini->cSections))
{
int new_size;
wIniFileSection** new_sect;
new_size = ini->cSections * 2;
new_sect = (wIniFileSection**) realloc(ini->sections, sizeof(wIniFileSection*) * new_size);
if (!new_sect)
return NULL;
ini->cSections = new_size;
ini->sections = new_sect;
}
section = IniFile_Section_New(name);
ini->sections[ini->nSections] = section;
ini->nSections++;
}
return section;
}
wIniFileKey* IniFile_GetKey(wIniFile* ini, wIniFileSection* section, const char* name)
{
int index;
wIniFileKey* key = NULL;
for (index = 0; index < section->nKeys; index++)
{
if (_stricmp(name, section->keys[index]->name) == 0)
{
key = section->keys[index];
break;
}
}
return key;
}
wIniFileKey* IniFile_AddKey(wIniFile* ini, wIniFileSection* section, const char* name, const char* value)
{
wIniFileKey* key;
if (!section || !name)
return NULL;
key = IniFile_GetKey(ini, section, name);
if (!key)
{
if ((section->nKeys + 1) >= (section->cKeys))
{
int new_size;
wIniFileKey** new_key;
new_size = section->cKeys * 2;
new_key = (wIniFileKey**) realloc(section->keys, sizeof(wIniFileKey*) * new_size);
if (!new_key)
return NULL;
section->cKeys = new_size;
section->keys = new_key;
}
key = IniFile_Key_New(name, value);
if (!key)
return NULL;
section->keys[section->nKeys] = key;
section->nKeys++;
}
else
{
free(key->value);
key->value = _strdup(value);
if (!key->value)
return NULL;
}
return key;
}
int IniFile_Load(wIniFile* ini)
{
char* line;
char* name;
char* value;
char* separator;
char *beg, *end;
wIniFileKey* key = NULL;
wIniFileSection* section = NULL;
while (IniFile_Load_HasNextLine(ini))
{
line = IniFile_Load_GetNextLine(ini);
if (line[0] == ';')
continue;
if (line[0] == '[')
{
beg = &line[1];
end = strchr(line, ']');
if (!end)
return -1;
*end = '\0';
IniFile_AddSection(ini, beg);
section = ini->sections[ini->nSections - 1];
}
else
{
separator = strchr(line, '=');
end = separator;
while ((&end[-1] > line) && ((end[-1] == ' ') || (end[-1] == '\t')))
end--;
*end = '\0';
name = line;
beg = separator + 1;
while (*beg && ((*beg == ' ') || (*beg == '\t')))
beg++;
if (*beg == '"')
beg++;
end = &line[ini->lineLength];
while ((end > beg) && ((end[-1] == ' ') || (end[-1] == '\t')))
end--;
if (end[-1] == '"')
end[-1] = '\0';
value = beg;
if (!IniFile_AddKey(ini, section, name, value))
{
return -1;
}
key = NULL;
if (section && section->keys)
key = section->keys[section->nKeys - 1];
}
}
IniFile_Load_Finish(ini);
return 1;
}
int IniFile_ReadBuffer(wIniFile* ini, const char* buffer)
{
int status;
ini->readOnly = TRUE;
ini->filename = NULL;
status = IniFile_Load_String(ini, buffer);
if (status < 0)
return status;
status = IniFile_Load(ini);
return status;
}
int IniFile_ReadFile(wIniFile* ini, const char* filename)
{
int status;
ini->readOnly = TRUE;
free(ini->filename);
ini->filename = _strdup(filename);
if (!ini->filename)
return -1;
status = IniFile_Load_File(ini, filename);
if (status < 0)
return status;
status = IniFile_Load(ini);
return status;
}
char** IniFile_GetSectionNames(wIniFile* ini, int* count)
{
char* p;
int index;
int length;
int nameLength;
char** sectionNames;
wIniFileSection* section = NULL;
length = (sizeof(char*) * ini->nSections) + sizeof(char);
for (index = 0; index < ini->nSections; index++)
{
section = ini->sections[index];
nameLength = strlen(section->name);
length += (nameLength + 1);
}
sectionNames = (char**) malloc(length);
if (!sectionNames)
return NULL;
p = (char*) &((BYTE*) sectionNames)[sizeof(char*) * ini->nSections];
for (index = 0; index < ini->nSections; index++)
{
sectionNames[index] = p;
section = ini->sections[index];
nameLength = strlen(section->name);
CopyMemory(p, section->name, nameLength + 1);
p += (nameLength + 1);
}
*p = '\0';
*count = ini->nSections;
return sectionNames;
}
char** IniFile_GetSectionKeyNames(wIniFile* ini, const char* section, int* count)
{
char* p;
int index;
int length;
int nameLength;
char** keyNames;
wIniFileKey* pKey = NULL;
wIniFileSection* pSection = NULL;
pSection = IniFile_GetSection(ini, section);
if (!pSection)
return NULL;
length = (sizeof(char*) * pSection->nKeys) + sizeof(char);
for (index = 0; index < pSection->nKeys; index++)
{
pKey = pSection->keys[index];
nameLength = strlen(pKey->name);
length += (nameLength + 1);
}
keyNames = (char**) malloc(length);
if (!keyNames)
return NULL;
p = (char*) &((BYTE*) keyNames)[sizeof(char*) * pSection->nKeys];
for (index = 0; index < pSection->nKeys; index++)
{
keyNames[index] = p;
pKey = pSection->keys[index];
nameLength = strlen(pKey->name);
CopyMemory(p, pKey->name, nameLength + 1);
p += (nameLength + 1);
}
*p = '\0';
*count = pSection->nKeys;
return keyNames;
}
const char* IniFile_GetKeyValueString(wIniFile* ini, const char* section, const char* key)
{
const char* value = NULL;
wIniFileKey* pKey = NULL;
wIniFileSection* pSection = NULL;
pSection = IniFile_GetSection(ini, section);
if (!pSection)
return NULL;
pKey = IniFile_GetKey(ini, pSection, key);
if (!pKey)
return NULL;
value = (const char*) pKey->value;
return value;
}
int IniFile_GetKeyValueInt(wIniFile* ini, const char* section, const char* key)
{
int value = 0;
wIniFileKey* pKey = NULL;
wIniFileSection* pSection = NULL;
pSection = IniFile_GetSection(ini, section);
if (!pSection)
return 0;
pKey = IniFile_GetKey(ini, pSection, key);
if (!pKey)
return 0;
value = atoi(pKey->value);
return value;
}
int IniFile_SetKeyValueString(wIniFile* ini, const char* section, const char* key, const char* value)
{
wIniFileKey* pKey = NULL;
wIniFileSection* pSection = NULL;
pSection = IniFile_GetSection(ini, section);
if (!pSection)
pSection = IniFile_AddSection(ini, section);
if (!pSection)
return -1;
pKey = IniFile_AddKey(ini, pSection, key, value);
if (!pKey)
return -1;
return 1;
}
int IniFile_SetKeyValueInt(wIniFile* ini, const char* section, const char* key, int value)
{
char strVal[128];
wIniFileKey* pKey = NULL;
wIniFileSection* pSection = NULL;
sprintf_s(strVal, sizeof(strVal), "%d", value);
pSection = IniFile_GetSection(ini, section);
if (!pSection)
pSection = IniFile_AddSection(ini, section);
if (!pSection)
return -1;
pKey = IniFile_AddKey(ini, pSection, key, strVal);
if (!pKey)
return -1;
return 1;
}
char* IniFile_WriteBuffer(wIniFile* ini)
{
int i, j;
int offset;
int size;
char* buffer;
wIniFileKey* key;
wIniFileSection* section;
size = 0;
for (i = 0; i < ini->nSections; i++)
{
section = ini->sections[i];
size += strlen(section->name) + 3;
for (j = 0; j < section->nKeys; j++)
{
key = section->keys[j];
size += strlen(key->name) + strlen(key->value) + 2;
}
size += 1;
}
size += 1;
buffer = malloc(size + 1);
if (!buffer)
return NULL;
offset = 0;
for (i = 0; i < ini->nSections; i++)
{
section = ini->sections[i];
sprintf_s(&buffer[offset], size - offset, "[%s]\n", section->name);
offset += strlen(section->name) + 3;
for (j = 0; j < section->nKeys; j++)
{
key = section->keys[j];
sprintf_s(&buffer[offset], size - offset, "%s=%s\n", key->name, key->value);
offset += strlen(key->name) + strlen(key->value) + 2;
}
sprintf_s(&buffer[offset], size - offset, "\n");
offset += 1;
}
buffer[offset] = '\0';
size += 1;
return buffer;
}
int IniFile_WriteFile(wIniFile* ini, const char* filename)
{
int length;
char* buffer;
buffer = IniFile_WriteBuffer(ini);
if (!buffer)
return -1;
length = strlen(buffer);
ini->readOnly = FALSE;
if (!filename)
filename = ini->filename;
if (IniFile_Open_File(ini, filename) < 0)
{
free(buffer);
return -1;
}
fwrite((void*) buffer, length, 1, ini->fp);
fclose(ini->fp);
free(buffer);
return 1;
}
wIniFile* IniFile_New()
{
wIniFile* ini = (wIniFile*) calloc(1, sizeof(wIniFile));
if (ini)
{
ini->nSections = 0;
ini->cSections = 64;
ini->sections = (wIniFileSection**) calloc(ini->cSections, sizeof(wIniFileSection*));
if (!ini->sections)
{
free(ini);
return NULL;
}
}
return ini;
}
void IniFile_Free(wIniFile* ini)
{
int index;
if (!ini)
return;
free(ini->filename);
for (index = 0; index < ini->nSections; index++)
{
IniFile_Section_Free(ini->sections[index]);
}
free(ini->sections);
free(ini);
}