archive.hh

Go to the documentation of this file.

// -*- c-basic-offset: 4; related-file-name: "../../lib/archive.cc" -*-
#ifndef CLICK_ARCHIVE_HH
#define CLICK_ARCHIVE_HH
#include <click/string.hh>
#include <click/vector.hh>
#include <click/error.hh>
CLICK_DECLS
class ErrorHandler;
 
struct ArchiveElement {
 
    String name;                
    int date;                   
    int uid;                    
    int gid;                    
    int mode;                   
    String data;                
 
    bool live() const {
        return name;
    }
 
    void kill() {
        name = String();
    }
 
    static int parse(const String &str, Vector<ArchiveElement> &ar,
                     ErrorHandler *errh = 0);
 
    static String unparse(const Vector<ArchiveElement> &ar,
                          ErrorHandler *errh = 0);
 
    static ArchiveElement *find(Vector<ArchiveElement> &ar, const String &name) {
        for (ArchiveElement *ae = ar.begin(); ae != ar.end(); ++ae)
            if (ae->name == name)
                return ae;
        return 0;
    }
 
    static const ArchiveElement *find(const Vector<ArchiveElement> &ar, const String &name) {
        for (const ArchiveElement *ae = ar.begin(); ae != ar.end(); ++ae)
            if (ae->name == name)
                return ae;
        return 0;
    }
 
    static int extract(const Vector<ArchiveElement> &ar, const String &name, const String &dest, ErrorHandler* errh = 0) {
        const ArchiveElement *ae = find(ar, name);
                FILE *f = fopen(dest.c_str(), "wb");
                if (!f) {
                  if (errh)
                        errh->error("%s: %s", name.c_str(), strerror(errno));
                  return -1;
                }
        int r = fwrite(ae->data.c_str(), 1, ae->data.length(), f);
        fclose(f);
        return r >= 0;
    }
 
};
 
CLICK_ENDDECLS
#endif