1.#include 
     
      2.#include 
      
       3.#include 
       
        4.#include 
        
         5.#include 
         
          6.#include 
          
            7.8.9.typedef struct item_t {10. char *key;11. char *value;12.}ITEM;13.14./*15. *去除字符串右端空格16. */17.char *strtrimr(char *pstr)18.{19. int i;20. i = strlen(pstr) - 1;21. while (isspace(pstr[i]) && (i >= 0))22. pstr[i--] = '\0';23. return pstr;24.}25./*26. *去除字符串左端空格27. */28.char *strtriml(char *pstr)29.{30. int i = 0,j;31. j = strlen(pstr) - 1;32. while (isspace(pstr[i]) && (i <= j))33. i++;34. if (0
           
            key = (char *)malloc(strlen(p) + 1);66. item->value = (char *)malloc(strlen(p2) + 1);67. strcpy(item->key,p);68. strcpy(item->value,p2);69.70. }71. return 0;//查询成功72.}73.74.int file_to_items(const char *file, struct item_t *items, int *num)75.{76. char line[1024];77. FILE *fp;78. fp = fopen(file,"r");79. if(fp == NULL)80. return 1;81. int i = 0;82. while(fgets(line, 1023, fp))83. {84. char *p = strtrim(line);85. int len = strlen(p);86. if(len <= 0)87. {88. continue;89. }90. else if(p[0]=='#')91. {92. continue;93. }94. else95. {96. char *p2 = strchr(p, '=');97. /*这里认为只有key没什么意义*/98. if(p2 == NULL)99. continue;100. *p2++ = '\0';101. items[i].key = (char *)malloc(strlen(p) + 1);102. items[i].value = (char *)malloc(strlen(p2) + 1);103. strcpy(items[i].key,p);104. strcpy(items[i].value,p2);105.106. i++;107. }108. }109. (*num) = i;110. fclose(fp);111. return 0;112.}113.114./*115. *读取value116. */117.int read_conf_value(const char *key,char *value1,const char *file)118.{119. char line[1024];120. char *key1,*key3,*key2;121. FILE *fp;122. fp = fopen(file,"r");123. if(fp == NULL)124. return 1;//文件打开错误125. while (fgets(line, 1023, fp)){126. ITEM item;127. get_item_from_line(line,&item);128. if(!strcmp(item.key,key)){129.130. strcpy(value1,item.value);131. fclose(fp);132. free(item.key);133. free(item.value);134. break;135. }136. }137. return 0;//成功138.139.}140.int write_conf_value(const char *key,char *value,const char *file)141.{142. ITEM items[20];// 假定配置项最多有20个143. int num;//存储从文件读取的有效数目144. file_to_items(file, items, &num);145.146. int i=0;147. //查找要修改的项148. for(i=0;i