#if defined(LIBC_SCCS) && !defined(lint)
static const char rcsid[] = "$OpenBSD: ftw.c,v 1.2 2003/07/21 21:15:32 millert Exp $";
#endif
#include <sys/types.h>
#include <sys/stat.h>
#include <errno.h>
#include <fts.h>
#include <ftw.h>
#include <limits.h>
int
ftw(const char *path, int (*fn)(const char *, const struct stat *, int),
int nfds)
{
const char *paths[2];
FTSENT *cur;
FTS *ftsp;
int fnflag, error, sverrno;
if (nfds < 1 || nfds > OPEN_MAX) {
errno = EINVAL;
return (-1);
}
paths[0] = path;
paths[1] = NULL;
ftsp = fts_open((char * const *)paths, FTS_COMFOLLOW | FTS_NOCHDIR,
NULL);
if (ftsp == NULL)
return (-1);
error = 0;
while ((cur = fts_read(ftsp)) != NULL) {
switch (cur->fts_info) {
case FTS_D:
fnflag = FTW_D;
break;
case FTS_DNR:
fnflag = FTW_DNR;
break;
case FTS_DP:
continue;
case FTS_F:
case FTS_DEFAULT:
fnflag = FTW_F;
break;
case FTS_NS:
case FTS_NSOK:
case FTS_SLNONE:
fnflag = FTW_NS;
break;
case FTS_SL:
fnflag = FTW_SL;
break;
case FTS_DC:
errno = ELOOP;
default:
error = -1;
goto done;
}
error = fn(cur->fts_path, cur->fts_statp, fnflag);
if (error != 0)
break;
}
done:
sverrno = errno;
(void) fts_close(ftsp);
errno = sverrno;
return (error);
}