From aad1a88c76f208d188fd061e3723bd637437e8d5 Mon Sep 17 00:00:00 2001
From: Eric Andersen <andersen@codepoet.org>
Date: Fri, 16 Mar 2001 22:47:14 +0000
Subject: Convert utility.c into libbb.a.  It is now a whole pile of .c files. 
 Clean up the resulting damage and fix up the makefile.  -Erik

---
 libbb/recursive_action.c | 160 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 160 insertions(+)
 create mode 100644 libbb/recursive_action.c

(limited to 'libbb/recursive_action.c')

diff --git a/libbb/recursive_action.c b/libbb/recursive_action.c
new file mode 100644
index 000000000..6b93340be
--- /dev/null
+++ b/libbb/recursive_action.c
@@ -0,0 +1,160 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * Utility routines.
+ *
+ * Copyright (C) tons of folks.  Tracking down who wrote what
+ * isn't something I'm going to worry about...  If you wrote something
+ * here, please feel free to acknowledge your work.
+ *
+ * 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
+ *
+ * Based in part on code from sash, Copyright (c) 1999 by David I. Bell 
+ * Permission has been granted to redistribute this code under the GPL.
+ *
+ */
+
+#include <stdio.h>
+#include <dirent.h>
+#include <sys/stat.h>
+#include "libbb.h"
+
+/* same conditions as recursive_action */
+#define bb_need_name_too_long
+#define BB_DECLARE_EXTERN
+#include "../messages.c"
+
+#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 == TRUE)
+		status = stat(fileName, &statbuf);
+	else
+		status = lstat(fileName, &statbuf);
+
+	if (status < 0) {
+#ifdef DEBUG_RECURS_ACTION
+		fprintf(stderr,
+				"status=%d followLinks=%d TRUE=%d\n",
+				status, followLinks, TRUE);
+#endif
+		perror_msg("%s", fileName);
+		return FALSE;
+	}
+
+	if ((followLinks == FALSE) && (S_ISLNK(statbuf.st_mode))) {
+		if (fileAction == NULL)
+			return TRUE;
+		else
+			return fileAction(fileName, &statbuf, userData);
+	}
+
+	if (recurse == FALSE) {
+		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 == FALSE) {
+			status = dirAction(fileName, &statbuf, userData);
+			if (status == FALSE) {
+				perror_msg("%s", fileName);
+				return FALSE;
+			} else if (status == SKIP)
+				return TRUE;
+		}
+		dir = opendir(fileName);
+		if (!dir) {
+			perror_msg("%s", fileName);
+			return FALSE;
+		}
+		status = TRUE;
+		while ((next = readdir(dir)) != NULL) {
+			char nextFile[PATH_MAX];
+
+			if ((strcmp(next->d_name, "..") == 0)
+					|| (strcmp(next->d_name, ".") == 0)) {
+				continue;
+			}
+			if (strlen(fileName) + strlen(next->d_name) + 1 > PATH_MAX) {
+				error_msg(name_too_long);
+				return FALSE;
+			}
+			memset(nextFile, 0, sizeof(nextFile));
+			if (fileName[strlen(fileName)-1] == '/')
+				sprintf(nextFile, "%s%s", fileName, next->d_name);
+			else
+				sprintf(nextFile, "%s/%s", fileName, next->d_name);
+			if (recursive_action(nextFile, TRUE, followLinks, depthFirst,
+						fileAction, dirAction, userData) == FALSE) {
+				status = FALSE;
+			}
+		}
+		closedir(dir);
+		if (dirAction != NULL && depthFirst == TRUE) {
+			if (dirAction(fileName, &statbuf, userData) == FALSE) {
+				perror_msg("%s", fileName);
+				return FALSE;
+			}
+		}
+		if (status == FALSE)
+			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:
+*/
-- 
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