Linux下c语言实现将一个目录下的所有文件和目录复制到另一个目录下

#include<stdio.h>
#include<fcntl.h>
#include<unistd.h>
#include<sys/stat.h>
#include<sys/types.h>
#include<dirent.h>
#include<string.h>

char paths[1000],patht[1000],temp_paths[1000],temp_patht[1000];

void Copy(char *spathname,char *tpathname)
{
   int sfd,tfd;
   struct stat s,t;
   char c;
   sfd=open(spathname,O_RDONLY);
   tfd=open(tpathname,O_RDWR|O_CREAT);
   while(read(sfd,&c,1)>0)
        write(tfd,&c,1);
   fstat(sfd,&s);
   chown(tpathname,s.st_uid,s.st_gid);
   chmod(tpathname,s.st_mode);
  
   close(sfd);
   close(tfd);
}

void d_copy(char *spathname,char *tpathname)
{
   struct stat s,t,temp_s,temp_t;
   struct dirent *s_p;
   DIR *dirs,*dirt;
  
   stat(spathname,&s);
   mkdir(tpathname,s.st_mode);
   chown(tpathname,s.st_uid,s.st_gid);
   dirt=opendir(tpathname);
   dirs=opendir(spathname);
   strcpy(temp_paths,spathname);
   strcpy(temp_patht,tpathname);
   while((s_p=readdir(dirs))!=NULL)
   {
      if(strcmp(s_p->d_name,".")!=0&&strcmp(s_p->d_name,"..")!=0)
      {
          strcat(temp_paths,"/");
          strcat(temp_paths,s_p->d_name);
          strcat(temp_patht,"/");
          strcat(temp_patht,s_p->d_name);
          lstat(temp_paths,&s);
          temp_s.st_mode=s.st_mode;
          if(S_ISLNK(temp_s.st_mode))
          {
              printf("%s is a symbol link file/n",temp_paths);
          }
          else if(S_ISREG(temp_s.st_mode))
          {
              printf("Copy file %s ....../n",temp_paths);
              Copy(temp_paths,temp_patht);
              strcpy(temp_paths,spathname);
              strcpy(temp_patht,tpathname);
          }
          else if(S_ISDIR(temp_s.st_mode))
          {
              printf("Copy directory %s ....../n",temp_paths);
              d_copy(temp_paths,temp_patht);
              strcpy(temp_paths,spathname);
              strcpy(temp_patht,tpathname);
          }
      }
   }
}

int main()
{
   struct dirent *sp,*tp;
   char spath[1000],tpath[1000],temp_spath[1000],temp_tpath[1000];
   struct stat sbuf,tbuf,temp_sbuf,temp_tbuf;
   char sdirect[1000],tdirect[1000],judge;
   DIR *dir_s,*dir_t;
  
   printf("Please input the sourse direct path and name :");
   scanf("%s",sdirect);
   dir_s=opendir(sdirect);
   if(dir_s==NULL)
   {
      printf("This directory don't exist !/n");
      return 0;
   }
   if(stat(sdirect,&sbuf)!=0)
   {
      printf("Get status error !/n");
      return 0;
   }
   printf("Please input the target direct path and name :");
   scanf("%s",tdirect);
   dir_t=opendir(tdirect);
   if(dir_t==NULL)
   {
      mkdir(tdirect,sbuf.st_mode);
      chown(tdirect,sbuf.st_uid,sbuf.st_gid);
      dir_t=opendir(tdirect);
   }
   else
   {
      chmod(tdirect,sbuf.st_mode);
      chown(tdirect,sbuf.st_uid,sbuf.st_gid);
   }  
   strcpy(spath,sdirect);
   strcpy(tpath,tdirect);
   strcpy(temp_spath,sdirect);
   strcpy(temp_tpath,tdirect);
/////////////////////////////////////////////////////////////////////////////////
   printf("Begin copy ......../n");
   while((sp=readdir(dir_s))!=NULL)
   {
      if(strcmp(sp->d_name,".")!=0&&strcmp(sp->d_name,"..")!=0)
      {
          strcat(temp_spath,"/");
          strcat(temp_spath,sp->d_name);
          strcat(temp_tpath,"/");
          strcat(temp_tpath,sp->d_name);
          lstat(temp_spath,&sbuf);
          temp_sbuf.st_mode=sbuf.st_mode;
          if(S_ISLNK(temp_sbuf.st_mode))
          {
              printf("%s is a symbolic link file/n",temp_spath);
          }
          else if((S_IFMT&temp_sbuf.st_mode)==S_IFREG)
          {
              printf("Copy file %s ....../n",temp_spath);
              Copy(temp_spath,temp_tpath);
              strcpy(temp_tpath,tpath);
              strcpy(temp_spath,spath);
          }
          else if((S_IFMT&temp_sbuf.st_mode)==S_IFDIR)
          {
              printf("Copy directory %s ....../n",temp_spath);
              d_copy(temp_spath,temp_tpath);
              strcpy(temp_tpath,tpath);
              strcpy(temp_spath,spath);
          }
      }
   }

   printf("Copy end !/n");
   closedir(dir_t);
   closedir(dir_s);
   return 1;
}