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#include "dietfeatures.h"
#include "dietdirent.h"
#include <unistd.h>
#include <dirent.h>
#include <stdlib.h>
#include <errno.h>
#include <string.h>
#include "syscalls.h"
#ifndef __NR_getdents64
#define WANT_LARGEFILE_BACKCOMPAT
#endif
#ifndef WANT_LARGEFILE_BACKCOMPAT
struct dirent64* readdir64(DIR *d) {
if (!d->num || (d->cur += ((struct dirent64*)(d->buf+d->cur))->d_reclen)>=d->num) {
int res=getdents64(d->fd,(struct dirent64*)d->buf, sizeof (d->buf)-1);
if (res<=0) return 0;
d->num=res; d->cur=0;
}
return (struct dirent64*)(d->buf+d->cur);
}
#else
struct dirent64* readdir64(DIR *d) {
#ifdef __NR_getdents64
static int trygetdents64=1;
#endif
struct dirent* o;
static struct dirent64 d64;
again:
#ifdef __NR_getdents64
if (!trygetdents64) {
#endif
if (!d->num || (d->cur += ((struct dirent*)(d->buf+d->cur))->d_reclen)>=d->num) {
int res=getdents(d->fd,(struct dirent*)d->buf, sizeof (d->buf)-1);
if (res<=0) return 0;
d->num=res; d->cur=0;
}
o=(struct dirent*)(d->buf+d->cur);
d64.d_ino=o->d_ino;
d64.d_off=o->d_off;
d64.d_reclen=o->d_reclen;
strcpy(d64.d_name,o->d_name);
d64.d_type=0; /* is this correct? */
return &d64;
#ifdef __NR_getdents64
}
if (!d->num || (d->cur += ((struct dirent64*)(d->buf+d->cur))->d_reclen)>=d->num) {
int res=getdents64(d->fd,(struct dirent64*)d->buf,sizeof (d->buf));
if (res<=0) {
if (errno==ENOSYS) {
trygetdents64=0;
goto again;
}
return 0;
}
d->num=res; d->cur=0;
}
return (struct dirent64*)(d->buf+d->cur);
#endif
}
#endif
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