1 files changed, 141 insertions, 0 deletions
diff --git a/busybox/libbb/recursive_action.c b/busybox/libbb/recursive_action.c
new file mode 100644
index 0000000..d276298
--- /dev/null
+++ b/busybox/libbb/recursive_action.c
@@ -0,0 +1,141 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * Utility routines.
+ *
+ * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
+ *
+ * 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 2 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, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <dirent.h>
+#include <sys/stat.h>
+#include <stdlib.h>	/* free() */
+#include "libbb.h"
+
+#undef DEBUG_RECURS_ACTION
+
+
+/*
+ * Walk down all the directories under the specified
+ * location, and do something (something specified
+ * by the fileAction and dirAction function pointers).
+ *
+ * Unfortunately, while nftw(3) could replace this and reduce
+ * code size a bit, nftw() wasn't supported before GNU libc 2.1,
+ * and so isn't sufficiently portable to take over since glibc2.1
+ * is so stinking huge.
+ */
+int recursive_action(const char *fileName,
+					int recurse, int followLinks, int depthFirst,
+					int (*fileAction) (const char *fileName,
+									   struct stat * statbuf,
+									   void* userData),
+					int (*dirAction) (const char *fileName,
+									  struct stat * statbuf,
+									  void* userData),
+					void* userData)
+{
+	int status;
+	struct stat statbuf;
+	struct dirent *next;
+
+	if (followLinks)
+		status = stat(fileName, &statbuf);
+	else
+		status = lstat(fileName, &statbuf);
+
+	if (status < 0) {
+#ifdef DEBUG_RECURS_ACTION
+		bb_error_msg("status=%d followLinks=%d TRUE=%d",
+				status, followLinks, TRUE);
+#endif
+		bb_perror_msg("%s", fileName);
+		return FALSE;
+	}
+
+	if (! followLinks && (S_ISLNK(statbuf.st_mode))) {
+		if (fileAction == NULL)
+			return TRUE;
+		else
+			return fileAction(fileName, &statbuf, userData);
+	}
+
+	if (! recurse) {
+		if (S_ISDIR(statbuf.st_mode)) {
+			if (dirAction != NULL)
+				return (dirAction(fileName, &statbuf, userData));
+			else
+				return TRUE;
+		}
+	}
+
+	if (S_ISDIR(statbuf.st_mode)) {
+		DIR *dir;
+
+		if (dirAction != NULL && ! depthFirst) {
+			status = dirAction(fileName, &statbuf, userData);
+			if (! status) {
+				bb_perror_msg("%s", fileName);
+				return FALSE;
+			} else if (status == SKIP)
+				return TRUE;
+		}
+		dir = opendir(fileName);
+		if (!dir) {
+			bb_perror_msg("%s", fileName);
+			return FALSE;
+		}
+		status = TRUE;
+		while ((next = readdir(dir)) != NULL) {
+			char *nextFile;
+
+			nextFile = concat_subpath_file(fileName, next->d_name);
+			if(nextFile == NULL)
+				continue;
+			if (! recursive_action(nextFile, TRUE, followLinks, depthFirst,
+						fileAction, dirAction, userData)) {
+				status = FALSE;
+			}
+			free(nextFile);
+		}
+		closedir(dir);
+		if (dirAction != NULL && depthFirst) {
+			if (! dirAction(fileName, &statbuf, userData)) {
+				bb_perror_msg("%s", fileName);
+				return FALSE;
+			}
+		}
+		if (! status)
+			return FALSE;
+	} else {
+		if (fileAction == NULL)
+			return TRUE;
+		else
+			return fileAction(fileName, &statbuf, userData);
+	}
+	return TRUE;
+}
+
+
+/* END CODE */
+/*
+Local Variables:
+c-file-style: "linux"
+c-basic-offset: 4
+tab-width: 4
+End:
+*/