Subversion Repositories planix.SVN

#include "lib.h"
#include <string.h>
#include "sys9.h"
#include "dir.h"

#define CHAR(x)         *p++ = f->x
#define SHORT(x)        p[0] = f->x; p[1] = f->x>>8; p += 2
#define LONG(x)         p[0] = f->x; p[1] = f->x>>8; p[2] = f->x>>16; p[3] = f->x>>24; p += 4
#define VLONG(x)        p[0] = f->x; p[1] = f->x>>8; p[2] = f->x>>16; p[3] = f->x>>24;\
                        p[4] = 0; p[5] = 0; p[6] = 0; p[7] = 0; p += 8
#define STRING(x,n)     memcpy(p, f->x, n); p += n

int
convD2M(Dir *f, char *ap)
{
        unsigned char *p;

        p = (unsigned char*)ap;
        STRING(name, sizeof(f->name));
        STRING(uid, sizeof(f->uid));
        STRING(gid, sizeof(f->gid));
        LONG(qid.path);
        LONG(qid.vers);
        LONG(mode);
        LONG(atime);
        LONG(mtime);
        VLONG(length);
        SHORT(type);
        SHORT(dev);
        return p - (unsigned char*)ap;
}

#undef  CHAR
#undef  SHORT
#undef  LONG
#undef  VLONG
#undef  STRING

#define CHAR(x)         f->x = *p++
#define SHORT(x)        f->x = (p[0] | (p[1]<<8)); p += 2
#define LONG(x)         f->x = (p[0] | (p[1]<<8) |\
                        (p[2]<<16) | (p[3]<<24)); p += 4
#define VLONG(x)        f->x = (p[0] | (p[1]<<8) |\
                        (p[2]<<16) | (p[3]<<24)); p += 8
#define STRING(x,n)     memcpy(f->x, p, n); p += n

int
convM2D(char *ap, Dir *f)
{
        unsigned char *p;

        p = (unsigned char*)ap;
        STRING(name, sizeof(f->name));
        STRING(uid, sizeof(f->uid));
        STRING(gid, sizeof(f->gid));
        LONG(qid.path);
        LONG(qid.vers);
        LONG(mode);
        LONG(atime);
        LONG(mtime);
        VLONG(length);
        SHORT(type);
        SHORT(dev);
        return p - (unsigned char*)ap;
}