/*#include <stdio.h>#include <stdlib.h>#include <unistd.h>#include <errno.h>#include <string.h>#include <sys/types.h>#include <sys/socket.h>#include <netinet/in.h>#include <arpa/inet.h>#include <sys/wait.h>#include <signal.h>#include <stdio.h>#include <libgen.h>#include <fcntl.h>#include <ctype.h>#include <time.h>*/#include <stdio.h>#include <stdlib.h>#include <unistd.h>#include <errno.h>#include <string.h>#include <sys/types.h>#include <sys/socket.h>#include <netinet/in.h>#include <arpa/inet.h>#include <sys/wait.h>#include <signal.h>#include <stdio.h>#include <libgen.h>#include <fcntl.h>#include <ctype.h>#include <time.h>//#include <pthread.h>struct newthread{  char ip[16];  int  sfd;};char serverpath[150];int  serverport=8888;char rheader[2048];char wheader[2048];char password[20]="password";int  contentsize=0;int  needauth=0;char defaultcgiext[10]="cgi";//默認程序擴展名為cgichar defaultdoc[100]="index.html";//默認首頁char returndata[120];char isauth=0;char cgiconffile[254]="./cgi.conf";//配置文件char request[2048];char requestcmd[2048]="";char requestparam[2048]="";/*******************************Read & write Option function******************************/struct rwoption {  char name[512];  char value[512];  struct rwoption *prev;  struct rwoption *next;};void delblank(char *lstr)//刪除字符串尾空白字符{  int i;  char tmpstr[512];  for(i=strlen(lstr)-1;i>=0;i--)    if(*(lstr+i)==' ')      *(lstr+i)='\0';    else      break;  for(i=0;i<strlen(lstr);i++)    if(*(lstr+i)!=' ')      break;  memset(tmpstr,0,512);  strcpy(tmpstr,(char *)(lstr+i));  memset(lstr,0,strlen(lstr));  strcpy(lstr,tmpstr);}int readoption(FILE *fp,char *paraname,char *value)//從參數文件讀出參數{  char o1[512],*o2;  char s1[512],s2[512];  fseek(fp,0L,SEEK_SET);  while(!feof(fp))  {    fscanf(fp,"%[^\n]\n",o1);//讀一行//    printf("%s\n",o1);    o2=strstr(o1,"=")+1;    memset(s1,0,512);    memset(s2,0,512);    strncpy(s1,o1,o2-o1-1);    strcpy(s2,o2);    delblank(s1);    delblank(s2);    if(strcasecmp(paraname,s1)==0)//比較參數名    {      strcpy(value,s2);//得到參數值      return 1;    }  }  return 0;}int writeoption(char *filename,char *paraname,char *value)//寫參數到參數文件{  FILE *fp=NULL;  char o1[512],*o2;  char s1[512],s2[512];  struct rwoption *s=NULL,*l=NULL,*t=NULL;  if((fp=fopen(filename,"r"))==NULL)    return 0;  fseek(fp,0L,SEEK_SET);  while(!feof(fp))  {    fscanf(fp,"%[^\n]\n",o1);    o2=strstr(o1,"=")+1;    memset(s1,0,512);    memset(s2,0,512);    strncpy(s1,o1,o2-o1-1);    if(strcasecmp(paraname,s1)==0)      strcpy(s2,value);    else      strcpy(s2,o2);    delblank(s1);    delblank(s2);    if(s==NULL)    {      s=(struct rwoption *)malloc(sizeof(struct rwoption));      s->prev=NULL;      s->next=NULL;      l=s;    }    else    {      l->next=(struct rwoption *)malloc(sizeof(struct rwoption));      l->next->prev=l;      l=l->next;      l->next=NULL;    }    strcpy(l->name,s1);    strcpy(l->value,s2);  }  fclose(fp);  if((fp=fopen(filename,"w"))==NULL)    return 0;  l=s;  t=l;  while(l)  {    fprintf(fp,"%s=%s\n",l->name,l->value);    l=t->next;    free(t);    t=l;  }  fclose(fp);  return 1;}/*******************************Read & write Option function******************************/void log(char *s)//打印日志信息{	time_t timer;  char lt[50];	struct tm *tblock;	timer = time(NULL);	tblock = localtime(&timer);  strcpy(lt,asctime(tblock));  lt[strlen(lt)-1]='\0';  printf("%s - %s\n",lt,s);}/***********************************base64 Decode*****************************************/  unsigned char B64[64] = {65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,    81,82,83,84,85,86,87,88,89,90,97,98,99,100,101,102,103,104,105,106,107,108,    109,110,111,112,113,114,115,116,117,118,119,120,121,122,48,49,50,51,52,53,    54,55,56,57,43,47};int base64decode(void *pinput,void * poutput,int Size)//base64解碼{  int i, j, iptr, optr;  unsigned char Temp[4];  unsigned char *Input, *Output;  int rtvalue=0;  Input = (unsigned char *)pinput;  Output = (unsigned char *)poutput;  iptr = 0;  optr = 0;    for(i=1;i<Size/4+1;i++)  {    for(j=0;j<4;j++)    {      if(Input[iptr]>=65&&Input[iptr]<=90)        Temp[j] = Input[iptr] - 'A';      if(Input[iptr]>=97&&Input[iptr]<=122)        Temp[j] = Input[iptr] - 'a' + 26;      if(Input[iptr]>=48&&Input[iptr]<=57)        Temp[j] = Input[iptr] - '0' + 52;      if(Input[iptr]==43)        Temp[j] = 62;      if(Input[iptr]==47)        Temp[j] = 63;      if(Input[iptr]==61)        Temp[j] = 0xFF;      iptr++;    }    Output[optr] = (Temp[0] << 2) | (Temp[1] >> 4);        if ((Temp[2]!= 0xFF) && (Temp[3]== 0xFF))    {      Output[optr+1] = (Temp[1] << 4) | (Temp[2] >> 2);      rtvalue = optr+2;      optr++;    }    else if (Temp[2]!= 0xFF)    {      Output[optr+1] = (Temp[1] << 4) | (Temp[2] >> 2);      Output[optr+2] = (Temp[2] << 6) |  Temp[3];      rtvalue = optr+3;      optr+=2;    };    optr++;  }  return 1;}    /***********************************base64 Decode*****************************************/char * filetype(char *filename){  char a1[128];  char a2[128];  sscanf(filename,"%[^.].%s",a1,a2);//a1得到文件名  a2得到文件擴展名  if(strcasecmp(a2,"jpg")==0 || strcmp(a2,"jpge")==0)  {    strcpy(returndata,"image/jpeg");  }  else if(strcasecmp(a2,"gif")==0)  {    strcpy(returndata,"image/gif");  }  else if(strcasecmp(a2,"ezw")==0)  {    strcpy(returndata,"ezw");  }  else if(strcasecmp(a2,"html")==0 || strcmp(a2,"htm") ==0)  {    strcpy(returndata,"text/html");  }  else  {    strcpy(returndata,"file/unknown");  }  return(returndata);}int sendfile(FILE *fp, int socket){  char filedata[2048];  int rlen=0;  int slen;  while(1)  {    rlen=fread(filedata,1,80,fp);    if(rlen<=0)      break;    slen=send(socket, filedata, rlen, 0);    if (slen == -1)                perror("\nsend from client");    else      if (slen<rlen)        log("not send all to client!");  }  return 0;}void readconfig(void){  FILE *fp;  char option1[20],option2[100];  strcpy(serverpath,"./www/");  serverport=1080;  needauth=0;  getcwd(cgiconffile,254);  strcat(cgiconffile,"/cgi.conf");  //printf("%s\n",cgiconffile);  strcpy(defaultcgiext,"cgi");  if((fp=fopen("miniweb.conf","r"))==NULL)  {    log("Error read the miniweb.conf,Use Default Configs!");  }  else  {    while(!feof(fp))    {      fscanf(fp,"\n%[^=]=%s\n",option1,option2);      //strcpy(option1,(char *)strlwr(option1));      delblank(option1);      if(strcasecmp(option1,"port")==0)        serverport=atoi(option2);      if(strcasecmp(option1,"homedir")==0)        strcpy(serverpath,option2);      if(strcasecmp(option1,"cgiext")==0)        strcpy(defaultcgiext,option2);      if(strcasecmp(option1,"needauth")==0)        needauth=atoi(option2);      if(strcasecmp(option1,"defaultdoc")==0)        strcpy(defaultdoc,option2);      if(strcasecmp(option1,"password")==0)      	strcpy(password,option2);      if(strcasecmp(option1,"cgiconfig")==0)        strcpy(cgiconffile,option2);    }  }  log("Read the config completed!");  //printf("Home dir:%s\nServer Port:%d\nDefault CGI Ext:%s\nPassword:%s\n",serverpath,serverport,defaultcgiext,password);  return;}char * readheadervalue(char *name){  char *lsub;  lsub=strstr(rheader,name);  if(lsub)  {    strcpy(returndata,lsub);    return(returndata);  }  return NULL;}int readheader(int socket){  int readlen=recv(socket,(void *)rheader,2048,0);  if(readlen==-1)     perror("Error Read Header request\n");  return readlen;}int writeheader(int socket,int code,char * contenttype){    char codestr[100];    if(code==200)      strcpy(codestr,"200 OK");    if(code==404)      strcpy(codestr,"404 Not Found");    if(code==400)      strcpy(codestr,"400 Bad Request");    if(code==401)      strcpy(codestr,"401 Unauthorized\nConnection: close\nWWW-Authenticate: Basic realm=\"Netstorage Setup\"");