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/* ISC license. */
#include <skalibs/sysdeps.h>
#include <skalibs/nonposix.h>
#include <skalibs/direntry.h>
#include <skalibs/djbunix.h>
#include <skalibs/unix-transactional.h>
#ifdef SKALIBS_HASFDOPENDIR
DIR *opendir_at (int dfd, char const *name)
{
DIR *dir ;
int fd = openc_readatb(dfd, name) ;
if (fd == -1) return 0 ;
dir = fdopendir(fd) ;
if (!dir) fd_close(fd) ;
return dir ;
}
#else
#include <unistd.h>
#include <stdlib.h>
DIR *opendir_at (int dfd, char const *name)
{
DIR *dir ;
int here = open_read(".") ;
if (here == -1) return 0 ;
if (fchdir(dfd) == -1)
{
fd_close(here) ;
return 0 ;
}
dir = opendir(name) ;
if (fchdir(here) == -1) abort() ;
fd_close(here) ;
return dir ;
}
#endif
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