wireless.1.authmode=1 wireless.1.compression=0 wireless.1.current_ap=ssid12 wireless.1.current_state=1 wireless.1.devname=ath0 wireless.1.enable_slave1_status=disabled wireless.1.enable_slave2_status=disabled wireless.1.enable_slave3_status=disabled

wireless.1.current_state=0

/*  * Author：DLUTBruceZhang  * Date: 2013.06.24  */ #include<stdio.h> #include<stdlib.h> #include<string.h> #include<unistd.h> int main() {  /*   *linebuffer：读取文件中的一行存入的缓冲   *buffer1：一行中第一个字段的存入缓冲   *buffer2：一行中第二个字段的存入缓冲   */  char linebuffer[512] = {0};  char buffer1[512] = {0};  char buffer2[512] = {0};  int line_len = 0;  int len = 0;  int res;  /*   * cc.cfg是文件名，r+代表可以读写文件   */  FILE *fp = fopen("cc.cfg", "r+");  if(fp == NULL)  {   printf("open error");   return -1;  }  while(fgets(linebuffer, 512, fp))  {   line_len = strlen(linebuffer);   len += line_len;   /*    * buffer1=wireless.1.current_state    * buffer2=1    */   sscanf(linebuffer, "%[^=]=%[^=]", buffer1,buffer2);   if(!strcmp("wireless.1.current_state", buffer1))   {    /*     * 由于已经找到所需要写的位置，所以需要写位置的“头”     */    len -= strlen(linebuffer);    /*     * 实现文件位置的偏移，为写文件做准备     */    res = fseek(fp, len, SEEK_SET);    if(res < 0)    {     perror("fseek");     return -1;    }    strcpy(buffer2, "=0");    /*strcat(buffer1, "=");*/    strcat(buffer1, buffer2);    printf("%d",strlen(buffer1));    /*     * 写文件，存入所需的内容        */    fprintf(fp, "%s", buffer1);    fclose(fp);    return;   }  } return 0; }

wireless.1.authmode=1 wireless.1.compression=0 wireless.1.current_ap=ssid12 wireless.1.current_state=0 wireless.1.enable_slave1_status=disabled wireless.1.enable_slave2_status=disabled wireless.1.enable_slave3_status=disabled