修改BBSLIB.inc
#define BASEDIR     "/tmp/attach/" //save the attach tmp
#define ATTACHDIR  "/home/httpd/html/attach/"

增加如下几个函数
int check_attach(char * dir){
    DIR * dp;
    int i;
    struct dirent * entry;
    struct stat statbuf;
    if((dp=opendir(dir))==NULL){
        return;
    }
    chdir(dir);
    i=0;
    while((entry=readdir(dp)) != NULL){
        stat(entry->d_name,&statbuf);
        if(strcmp(".",entry->d_name)==0 || strcmp("..",entry->d_name)==0)
            continue;
        
        if(S_ISDIR(statbuf.st_mode))
            continue;
        i++;
    }
    chdir(BBSHOME);
    closedir(dp);
    return i;
}

int copy_file(char * src,char * des){
    char buf[1024];
    int fd_src,fd_des;
    int nread;
    
    fd_src= open(src,O_RDONLY);
    if(file_exist(des)) unlink(des);
    fd_des= open(des,O_WRONLY | O_CREAT,S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH);
    while((nread=read(fd_src,buf,sizeof(buf)))>0)
        write(fd_des,buf,nread);
    close(fd_src);
    close(fd_des);
}
int mk_attach_dir(char * board){
    chdir(ATTACHDIR);
    if(file_exist(board)){
        if(!file_isdir(board)) unlink(board);
        else return;
    }
    return mkdir(board,S_IRUSR | S_IWUSR | S_IXUSR | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH);
    
}
void show_attach_con(char * dir){
    DIR * dp;
    int i;
    struct dirent * entry;
    struct stat statbuf;

    if((dp=opendir(dir))==NULL){
        return;
    }
    printf("<table border=0 cellpadding=0 cellspacing=0 width=100%>");
    printf("<tr><td colspan=3>附件有:<br>\n");
    chdir(dir);
    i=1;
    while((entry=readdir(dp)) != NULL){
        stat(entry->d_name,&statbuf);
        if(strcmp(".",entry->d_name)==0 || strcmp("..",entry->d_name)==0)
            continue;
        
        if(S_ISDIR(statbuf.st_mode))
            continue;
        printf("<tr><td><a href='/attach/%s/%s/%s'>附件%d</a>：%20.20s   <td>大小：%d字节<td>\n",
            getparm("board"), getparm("file"), entry->d_name,
            i,entry->d_name,file_size(entry->d_name));
        i++;
    }
    printf("</table>");
    chdir(BBSHOME);
    closedir(dp);
}
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