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/* $MirOS: contrib/hosted/fwcf/fts_subs.c,v 1.8 2007/07/02 14:53:03 tg Exp $ */
/*-
* Copyright (c) 2006
* Thorsten Glaser <tg@mirbsd.de>
*
* Licensee is hereby permitted to deal in this work without restric-
* tion, including unlimited rights to use, publicly perform, modify,
* merge, distribute, sell, give away or sublicence, provided all co-
* pyright notices above, these terms and the disclaimer are retained
* in all redistributions or reproduced in accompanying documentation
* or other materials provided with binary redistributions.
*
* Licensor offers the work "AS IS" and WITHOUT WARRANTY of any kind,
* express, or implied, to the maximum extent permitted by applicable
* law, without malicious intent or gross negligence; in no event may
* licensor, an author or contributor be held liable for any indirect
* or other damage, or direct damage except proven a consequence of a
* direct error of said person and intended use of this work, loss or
* other issues arising in any way out of its use, even if advised of
* the possibility of such damage or existence of a defect.
*/
#include <sys/param.h>
#include <sys/stat.h>
#include <err.h>
#include <errno.h>
#if !defined(__OpenBSD__) && !defined(__NetBSD__) && !defined(__APPLE__)
#include "fts_gnu.h"
#else
#include <fts.h>
#endif
#include <stdlib.h>
#include <string.h>
#include "defs.h"
#define FTSF_INTERNALS
#include "fts_subs.h"
static FTS *handle;
char ftsf_prefix[PATH_MAX];
size_t ftsf_prefixlen;
void
ftsf_start(const char *root)
{
char *paths[2];
if (handle != NULL) {
if (fts_close(handle))
warn("fts_close");
free(handle);
}
if (realpath(root, ftsf_prefix) == NULL)
err(1, "determine realpath for %s", root);
ftsf_prefixlen = strlen(ftsf_prefix) + 1;
paths[0] = ftsf_prefix;
paths[1] = NULL;
handle = fts_open(paths, FTS_NOCHDIR | FTS_PHYSICAL, NULL);
if (handle == NULL)
err(1, "fts_open on %s for %s", ftsf_prefix, root);
}
int
ftsf_next(ftsf_entry *e)
{
FTSENT *ent;
char *ename;
memset(e, 0, sizeof (ftsf_entry));
if (handle == NULL) {
warn("ftsf_next called before ftsf_open");
return (-1);
}
ftsf_continue:
if ((ent = fts_read(handle)) == NULL) {
if (errno == 0) {
if (fts_close(handle))
warn("fts_close");
handle = NULL;
return (0);
}
warn("fts_read");
if (fts_close(handle))
warn("fts_close");
handle = NULL;
return (-1);
}
ename = ent->fts_path;
#if 0 /* debug */
if (asprintf(&ename, "accpath<%s> path<%s> name<%s>", ent->fts_accpath,
ent->fts_path, ent->fts_name) == -1)
err(1, "asprintf");
#endif
if (strcmp(ename, ftsf_prefix)) {
if (strlcpy(e->pathname, ename + ftsf_prefixlen,
sizeof (e->pathname)) >= sizeof (e->pathname))
warn("truncating file name '%s' to '%s'", ename,
e->pathname);
} else
memcpy(e->pathname, ".", 2);
switch (ent->fts_info) {
case FTS_D:
e->etype = FTSF_DIR;
break;
case FTS_DNR:
warn("directory %s not readable, skipping: %s", ename,
strerror(ent->fts_errno));
/* FALLTHROUGH */
case FTS_DC:
case FTS_DOT:
case FTS_DP:
goto ftsf_continue;
case FTS_DEFAULT:
if (S_ISDIR(ent->fts_statp->st_mode))
e->etype = FTSF_DIR;
else if (S_ISREG(ent->fts_statp->st_mode))
e->etype = FTSF_FILE;
else if (S_ISLNK(ent->fts_statp->st_mode))
e->etype = FTSF_SYMLINK;
else
e->etype = FTSF_OTHER;
break;
case FTS_ERR:
warn("generic error condition %s on %s, skipping",
strerror(ent->fts_errno), ename);
goto ftsf_continue;
case FTS_F:
e->etype = FTSF_FILE;
break;
case FTS_NSOK:
ent->fts_errno = 0;
/* FALLTHROUGH */
case FTS_NS:
warn("skipping due to no stat(2) information on %s: %s",
ename, strerror(ent->fts_errno));
goto ftsf_continue;
case FTS_SL:
case FTS_SLNONE:
e->etype = FTSF_SYMLINK;
break;
default:
warn("unknown fts_info field for %s: %d, skipping",
ename, (int)ent->fts_info);
warn("ent->fts_errno = %d (%s)", ent->fts_errno,
strerror(ent->fts_errno));
goto ftsf_continue;
}
e->statp = ent->fts_statp;
return (1);
}
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