服务器源代码如下:
#include <stdarg.h>
#include <errno.h>
#include <stdio.h>
#include <fcntl.h>
#include <unistd.h>
#include <string.h>
#include <time.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <dirent.h>
#include <errno.h>
#include <netinet/in.h>
#include <sys/socket.h>
#include <resolv.h>
#include <arpa/inet.h>
#include <stdlib.h>
#include <signal.h>
#include <getopt.h>
#define DEFAULTIP "127.0.0.1"
#define DEFAULTPORT "80"
#define DEFAULTBACK "10"
#define DEFAULTDIR "/home"
#define DEFAULTLOG "/tmp/das-server.log"
void prterrmsg(char *msg);
#define prterrmsg(msg) { perror(msg); abort(); }
void wrterrmsg(char *msg);
#define wrterrmsg(msg) { fputs(msg, logfp); fputs(strerror(errno), logfp);fflush(logfp); abort(); }
void prtinfomsg(char *msg);
#define prtinfomsg(msg) { fputs(msg, stdout); }
void wrtinfomsg(char *msg);
#define wrtinfomsg(msg) { fputs(msg, logfp); fflush(logfp);}
#define MAXBUF 1024
char buffer[MAXBUF + 1];
char *host = 0;
char *port = 0;
char *back = 0;
char *dirroot = 0;
char *logdir = 0;
unsigned char daemon_y_n = 0;
FILE *logfp;
#define MAXPATH 150
/*----------------------------------------
*--- dir_up - 查找dirpath所指目录的上一级目录
*----------------------------------------
*/
char *dir_up(char *dirpath)
{
static char Path[MAXPATH];
int len;
strcpy(Path, dirpath);
len = strlen(Path);
if (len > 1 && Path[len - 1] == '/')
len--;
while (Path[len - 1] != '/' && len > 1)
len--;
Path[len] = 0;
return Path;
}
/*------------------------------------------------------
*--- AllocateMemory - 分配空间并把d所指的内容复制
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