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/*
* Copyright (c) 2008-2018 by Andreas Schneider <asn@samba.org>
*
* Adopted from the csync source code
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "replace.h"
#include "system/filesys.h"
#include "system/dir.h"
#include "lib/util/debug.h"
#include "tftw.h"
int tftw(TALLOC_CTX *mem_ctx, const char *fpath, tftw_walker_fn fn, size_t depth, void *userdata)
{
char *filename = NULL;
char *d_name = NULL;
DIR *dh = NULL;
struct dirent *dirent = NULL;
struct stat sb = {0};
int rc = 0;
if (fpath[0] == '\0') {
errno = ENOENT;
goto error;
}
if ((dh = opendir(fpath)) == NULL) {
/* permission denied */
if (errno == EACCES) {
return 0;
} else {
DBG_ERR("opendir failed for: [%s]\n", strerror(errno));
goto error;
}
}
while ((dirent = readdir(dh))) {
int flag;
d_name = dirent->d_name;
if (d_name == NULL) {
goto error;
}
/* skip "." and ".." */
if (d_name[0] == '.' && (d_name[1] == '\0'
|| (d_name[1] == '.' && d_name[2] == '\0'))) {
dirent = NULL;
continue;
}
filename = talloc_asprintf(mem_ctx, "%s/%s", fpath, d_name);
if (filename == NULL) {
goto error;
}
rc = lstat(filename, &sb);
if (rc < 0) {
dirent = NULL;
goto error;
}
switch (sb.st_mode & S_IFMT) {
case S_IFLNK:
flag = TFTW_FLAG_SLINK;
break;
case S_IFDIR:
flag = TFTW_FLAG_DIR;
break;
case S_IFBLK:
case S_IFCHR:
case S_IFSOCK:
case S_IFIFO:
flag = TFTW_FLAG_SPEC;
break;
default:
flag = TFTW_FLAG_FILE;
break;
}
DBG_INFO("walk: [%s]\n", filename);
/* Call walker function for each file */
rc = fn(mem_ctx, filename, &sb, flag, userdata);
if (rc < 0) {
DBG_ERR("provided callback fn() failed: [%s]\n",
strerror(errno));
closedir(dh);
goto done;
}
if (flag == TFTW_FLAG_DIR && depth) {
rc = tftw(mem_ctx, filename, fn, depth - 1, userdata);
if (rc < 0) {
closedir(dh);
goto done;
}
}
TALLOC_FREE(filename);
dirent = NULL;
}
closedir(dh);
done:
TALLOC_FREE(filename);
return rc;
error:
if (dh != NULL) {
closedir(dh);
}
TALLOC_FREE(filename);
return -1;
}
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