/**
* @file
* @brief test ini file api
* @author Deng Yangjun
* @date 2007-1-9
* @version 0.2
*/
//#include <stdio.h>
//#include "IniFile.h"
#define BUF_SIZE 256
/**
* @file
* @brief initialization file read and write API implementation
* @author Deng Yangjun
* @date 2007-1-9
* @version 0.2
*/
#include <stdio.h>
#include <stdlib.h>
#include <assert.h>
#include <string.h>
#include <ctype.h>
//#include "inifile.h"
#ifdef __cplusplus
extern "C"
{
#endif
#define MAX_FILE_SIZE 1024*16
#define LEFT_BRACE '['
#define RIGHT_BRACE ']'
static int load_ini_file(const char *file, char *buf,int *file_size)
{
FILE *in = NULL;
int i=0;
*file_size =0;
assert(file !=NULL);
assert(buf !=NULL);
in = fopen(file,"r");
if( NULL == in) {
return 0;
}
buf[i]=fgetc(in);
//load initialization file
while( buf[i]!= (char)EOF) {
i++;
assert( i < MAX_FILE_SIZE ); //file too big, you can redefine MAX_FILE_SIZE to fit the big file
buf[i]=fgetc(in);
}
buf[i]='\0';
*file_size = i;
fclose(in);
return 1;
}
static int newline(char c)
{
return ('\n' == c || '\r' == c )? 1 : 0;
}
static int end_of_string(char c)
{
return '\0'==c? 1 : 0;
}
static int left_barce(char c)
{
return LEFT_BRACE == c? 1 : 0;
}
static int isright_brace(char c )
{
return RIGHT_BRACE == c? 1 : 0;
}
static int parse_file(const char *section, const char *key, const char *buf,int *sec_s,int *sec_e,
int *key_s,int *key_e, int *value_s, int *value_e)
{
const char *p = buf;
int i=0;
assert(buf!=NULL);
assert(section != NULL && strlen(section));
assert(key != NULL && strlen(key));
*sec_e = *sec_s = *key_e = *key_s = *value_s = *value_e = -1;
while( !end_of_string(p[i]) ) {
//find the section
if( ( 0==i || newline(p[i-1]) ) && left_barce(p[i]) )
{
int section_start=i+1;
//find the ']'
do {
i++;
} while( !isright_brace(p[i]) && !end_of_string(p[i]));
if( 0 == strncmp(p+section_start,section, i-section_start)) {
int newline_start=0;
i++;
//Skip over space char after ']'
while(isspace(p[i])) {
i++;
}
//find the section
*sec_s = section_start;
*sec_e = i;
while( ! (newline(p[i-1]) && left_barce(p[i]))
&& !end_of_string(p[i]) ) {
int j=0;
//get a new line
newline_start = i;
while( !newline(p[i]) && !end_of_string(p[i]) ) {
i++;
}
//now i is equal to end of the line
j = newline_start;
if(';' != p[j]) //skip over comment
{
while(j < i && p[j]!='=') {
j++;
if('=' == p[j]) {
if(strncmp(key,p+newline_start,j-newline_start)==0)
{
//find the key ok
*key_s = newline_start;
*key_e = j-1;
*value_s = j+1;
*value_e = i;
return 1;
}
}
}
}
i++;
}
}
}
else
{
i++;
}
}
return 0;
}
/**
*@brief read string in initialization file\n
* retrieves a string from the specified section in an initialization file
*@param section [in] name of the section containing the key name
*@param key [in] name of the key pairs to value
*@param value [in] pointer to the buffer that receives the retrieved string
*@param size [in] size of result's buffer
*@param default_value [in] default value of result
*@param file [in] path of the initialization file
*@return 1 : read success; \n 0 : read fail
*/
int read_profile_string( const char *section, const char *key,char *value,
int size, const char *default_value, const char *file)
{
char buf[MAX_FILE_SIZE]={0};
int file_size;
int sec_s,sec_e,key_s,key_e, value_s, value_e;
//check parameters
assert(section != NULL && strlen(section));
assert(key != NULL && strlen(key));
assert(value != NULL);
assert(size > 0);
assert(file !=NULL &&strlen(key));
if(!load_ini_file(file,buf,&file_size))
{
if(default_value!=NULL)
{
strncpy(value,default_value, size);
}
return 0;
}
if(!parse_file(section,key,buf,&sec_s,&sec_e,&key_s,&key_e,&value_s,&value_e))
{
if(default_value!=NULL)
{
strncpy(value,default_value, size);
}
return 0; //not find the key
}
else
{
int cpcount = value_e -value_s;
if( size-1 < cpcount)
{
cpcount = size-1;
}
memset(value, 0, size);
memcpy(value,buf+value_s, cpcount );
value[cpcount] = '\0';
return 1;
}
}
/**
*@brief read int value in initialization file\n
* retrieves int value from the specified section in an initialization file
*@param section [in] name of the section containing the key name
*@param key [in] name of the key pairs to value
*@param default_value [in] default value of result
*@param file [in] path of the initialization file
*@return profile int value,if read fail, return default value
*/
int read_profile_int( const char *section, const char *key,int default_value,
const char *file)
{
char value[32] = {0};
if(!read_profile_string(section,key,value, sizeof(value),NULL,file))
{
return default_value;
}
else
{
return atoi(value);
}
}
/**
* @brief write a profile string to a ini file
* @param section [in] name of the section,can't be NULL and empty string
* @param key [in] name of the key pairs to value, can't be NULL and empty string
* @param value [in] profile string value
* @param file [in] path of ini file
* @return 1 : success\n 0 : failure
*/
int write_profile_string(const char *section, const char *key,
const char *value, const char *file)
{
char buf[MAX_FILE_SIZE]={0};
char w_buf[MAX_FILE_SIZE]={0};
int sec_s,sec_e,key_s,key_e, value_s, value_e;
int value_len = (int)strlen(value);
int file_size;
FILE *out;
//check parameters
assert(section != NULL && strlen(section));
assert(key != NULL && strlen(key));
assert(value != NULL);
assert(file !=NULL &&strlen(key));
if(!load_ini_file(file,buf,&file_size))
{
sec_s = -1;
}
else
{
parse_file(section,key,buf,&sec_s,&sec_e,&key_s,&key_e,&value_s,&value_e);
}
if( -1 == sec_s)
{
if(0==file_size)
{
sprintf(w_buf+file_size,"[%s]\n%s=%s\n",section,key,value);
}
else
{
//not find the section, then add the new section at end of the file
memcpy(w_buf,buf,file_size);
sprintf(w_buf+file_size,"\n[%s]\n%s=%s\n",section,key,value);
}
}
else if(-1 == key_s)
{
//not find the key, then add the new key=value at end of the section
memcpy(w_buf,buf,sec_e);
sprintf(w_buf+sec_e,"%s=%s\n",key,value);
sprintf(w_buf+sec_e+strlen(key)+strlen(value)+2,buf+sec_e, file_size - sec_e);
}
else
{
//update value with new value
memcpy(w_buf,buf,value_s);
memcpy(w_buf+value_s,value, value_len);
memcpy(w_buf+value_s+value_len, buf+value_e, file_size - value_e);
}
out = fopen(file,"w");
if(NULL == out)
{
return 0;
}
if(-1 == fputs(w_buf,out) )
{
fclose(out);
return 0;
}
fclose(out);
return 1;
}
#ifdef __cplusplus
}; //end of extern "C" {
#endif
/*
int main()
{
const char *file ="/tmp/myconfig.ini";
const char *section = "student1";
const char *name_key = "name1";
const char *age_key = "age1";
char name[BUF_SIZE]={0};
int age;
// 暂时屏蔽,都是能用的代码
//write name key value pair
if(!write_profile_string(section,name_key,"Tony",file))
{
printf("write name pair to ini file fail\n");
return -1;
}
//write age key value pair
if(!write_profile_string(section,age_key,"20",file))
{
printf("write age pair to ini file fail\n");
return -1;
}
printf("[%s]\n",section);
//read string pair, test read string value
if(!read_profile_string(section, name_key, name, BUF_SIZE,"",file))
{
printf("read ini file fail\n");
return -1;
}
else
{
printf("%s=%s\n",name_key,name);
}
//
//re
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linux配置文件读写好用的类
共22个文件
c:2个
obj:2个
cpp:2个
1星 需积分: 15 24 下载量 59 浏览量
2010-11-06
10:11:11
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有了它,就不用为在linux下读写配置文件烦恼了。 经实际项目使用测试,绝对好用
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linux+c+配置文件读写.rar (22个子文件)
linux+c+配置文件读写
maintest.dsw 541B
maintest.plg 1KB
iniFileRW.C 8KB
maintest.ncb 49KB
maintest.dsp 3KB
IniFile.h 821B
maintest.opt 50KB
Debug
maintest.bsc 73KB
vc60.pdb 52KB
maintest.obj 4KB
vc60.idb 33KB
maintest.pch 172KB
maintest.exe 164KB
iniFileRW.obj 16KB
iniFileRW.sbr 0B
maintest.ilk 185KB
maintest.pdb 449KB
maintest.sbr 0B
maintest.c 1KB
maintest.cpp 1KB
myconfig.log 55B
iniFileRW.cpp 7KB
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