1 /* vi: set sw=4 ts=4: */
5 * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
26 #include <stdlib.h> /* free() */
29 #undef DEBUG_RECURS_ACTION
33 * Walk down all the directories under the specified
34 * location, and do something (something specified
35 * by the fileAction and dirAction function pointers).
37 * Unfortunately, while nftw(3) could replace this and reduce
38 * code size a bit, nftw() wasn't supported before GNU libc 2.1,
39 * and so isn't sufficiently portable to take over since glibc2.1
40 * is so stinking huge.
42 int recursive_action(const char *fileName,
43 int recurse, int followLinks, int depthFirst,
44 int (*fileAction) (const char *fileName,
45 struct stat * statbuf,
47 int (*dirAction) (const char *fileName,
48 struct stat * statbuf,
57 status = stat(fileName, &statbuf);
59 status = lstat(fileName, &statbuf);
62 #ifdef DEBUG_RECURS_ACTION
63 bb_error_msg("status=%d followLinks=%d TRUE=%d",
64 status, followLinks, TRUE);
66 bb_perror_msg("%s", fileName);
70 if (! followLinks && (S_ISLNK(statbuf.st_mode))) {
71 if (fileAction == NULL)
74 return fileAction(fileName, &statbuf, userData);
78 if (S_ISDIR(statbuf.st_mode)) {
79 if (dirAction != NULL)
80 return (dirAction(fileName, &statbuf, userData));
86 if (S_ISDIR(statbuf.st_mode)) {
89 if (dirAction != NULL && ! depthFirst) {
90 status = dirAction(fileName, &statbuf, userData);
92 bb_perror_msg("%s", fileName);
94 } else if (status == SKIP)
97 dir = opendir(fileName);
99 bb_perror_msg("%s", fileName);
103 while ((next = readdir(dir)) != NULL) {
106 nextFile = concat_subpath_file(fileName, next->d_name);
109 if (! recursive_action(nextFile, TRUE, followLinks, depthFirst,
110 fileAction, dirAction, userData)) {
116 if (dirAction != NULL && depthFirst) {
117 if (! dirAction(fileName, &statbuf, userData)) {
118 bb_perror_msg("%s", fileName);
125 if (fileAction == NULL)
128 return fileAction(fileName, &statbuf, userData);
137 c-file-style: "linux"