This commit was manufactured by cvs2svn to create tag 'busybox_1_00'.

6 files changed, 1466 insertions, 0 deletions

diff --git a/busybox/findutils/Config.in b/busybox/findutils/Config.in
new file mode 100644
index 0000000..3143bd4
--- /dev/null
+++ b/busybox/findutils/Config.in
@@ -0,0 +1,133 @@
+#
+# For a description of the syntax of this configuration file,
+# see scripts/kbuild/config-language.txt.
+#
+
+menu "Finding Utilities"
+
+config CONFIG_FIND
+	bool "find"
+	default n
+	help
+	  find is used to search your system to find specified files.
+
+config CONFIG_FEATURE_FIND_MTIME
+	bool "  Enable modified time matching (-mtime) option"
+	default y
+	depends on CONFIG_FIND
+	help
+	  Allow searching based on the modification time of
+	  files.
+
+config CONFIG_FEATURE_FIND_PERM
+	bool "  Enable permissions matching (-perm) option"
+	default y
+	depends on CONFIG_FIND
+	help
+	  Enable searching based on file permissions.
+
+config CONFIG_FEATURE_FIND_TYPE
+	bool "  Enable filetype matching (-type) option"
+	default y
+	depends on CONFIG_FIND
+	help
+	  Enable searching based on file type (file,
+	  directory, socket, device, etc.).
+
+config CONFIG_FEATURE_FIND_XDEV
+	bool "  Enable stay in filesystem (-xdev) option"
+	default y
+	depends on CONFIG_FIND
+	help
+	  This option will allow find to restrict searches to a single
+	  filesystem.
+
+config CONFIG_FEATURE_FIND_NEWER
+	bool "  Enable -newer option for comparing file mtimes"
+	default y
+	depends on CONFIG_FIND
+	help
+	  Support the 'find -newer' option for finding any files which have
+	  a modified time that is more recent than the specified FILE.
+
+config CONFIG_FEATURE_FIND_INUM
+	bool "  Enable inode number matching (-inum) option"
+	default y
+	depends on CONFIG_FIND
+	help
+	  Support the 'find -inum' option for searching by inode number.
+
+config CONFIG_GREP
+	bool "grep"
+	default n
+	help
+	  grep is used to search files for a specified pattern.
+
+config CONFIG_FEATURE_GREP_EGREP_ALIAS
+	bool "  Support extended regular expressions (egrep & grep -E)"
+	default y
+	depends on CONFIG_GREP
+	help
+	  Enabled support for extended regular expressions.  Extended
+	  regular expressions allow for alternation (foo|bar), grouping,
+	  and various repetition operators.
+
+config CONFIG_FEATURE_GREP_FGREP_ALIAS
+	bool "  Alias fgrep to grep -f"
+	default y
+	depends on CONFIG_GREP
+	help
+          fgrep sees the search pattern as a normal string rather than
+	  regular expressions.
+	  grep -f is always builtin, this just creates the fgrep alias.
+
+config CONFIG_FEATURE_GREP_CONTEXT
+	bool "  Enable before and after context flags (-A, -B and -C)"
+	default y
+	depends on CONFIG_GREP
+	help
+	  Print the specified number of leading (-B) and/or trailing (-A)
+	  context surrounding our matching lines.
+	  Print the specified number of context lines (-C).
+
+config CONFIG_XARGS
+	bool "xargs"
+	default n
+	help
+	  xargs is used to execute a specified command on
+	  every item from standard input.
+
+config CONFIG_FEATURE_XARGS_SUPPORT_CONFIRMATION
+	bool "  Enable prompt and confirmation option -p"
+	default n
+	depends on CONFIG_XARGS
+	help
+	  Support prompt the user about whether to run each command
+	  line and read a line from the terminal.
+
+config CONFIG_FEATURE_XARGS_SUPPORT_QUOTES
+	bool "  Enable support single and double quotes and backslash"
+	default n
+	depends on CONFIG_XARGS
+	help
+	  Default xargs unsupport single and double quotes
+	  and backslash for can use aruments with spaces.
+
+config CONFIG_FEATURE_XARGS_SUPPORT_TERMOPT
+	bool "  Enable support options -x"
+	default n
+	depends on CONFIG_XARGS
+	help
+	  Enable support exit if the size (see the -s or -n option)
+	  is exceeded.
+
+config CONFIG_FEATURE_XARGS_SUPPORT_ZERO_TERM
+	bool "  Enable options -0"
+	default n
+	depends on CONFIG_XARGS
+	help
+	  Enable input filenames are terminated by a null character
+	  instead of by whitespace, and the quotes and backslash
+	  are not special.
+
+endmenu
diff --git a/busybox/findutils/Makefile b/busybox/findutils/Makefile
new file mode 100644
index 0000000..f3f8bb8
--- /dev/null
+++ b/busybox/findutils/Makefile
@@ -0,0 +1,32 @@
+# Makefile for busybox
+#
+# 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
+#
+
+top_srcdir=..
+top_builddir=..
+srcdir=$(top_srcdir)/findutils
+FINDUTILS_DIR:=./
+include $(top_builddir)/Rules.mak
+include $(top_builddir)/.config
+include $(srcdir)/Makefile.in
+all: $(libraries-y)
+-include $(top_builddir)/.depend
+
+clean:
+	rm -f *.o *.a $(AR_TARGET)
+
diff --git a/busybox/findutils/Makefile.in b/busybox/findutils/Makefile.in
new file mode 100644
index 0000000..ae71070
--- /dev/null
+++ b/busybox/findutils/Makefile.in
@@ -0,0 +1,38 @@
+# Makefile for busybox
+#
+# 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
+#
+
+FINDUTILS_AR:=findutils.a
+ifndef $(FINDUTILS_DIR)
+FINDUTILS_DIR:=$(top_builddir)/findutils/
+endif
+srcdir=$(top_srcdir)/findutils
+
+FINDUTILS-y:=
+FINDUTILS-$(CONFIG_FIND)	+= find.o
+FINDUTILS-$(CONFIG_GREP)	+= grep.o
+FINDUTILS-$(CONFIG_XARGS)	+= xargs.o
+
+libraries-y+=$(FINDUTILS_DIR)$(FINDUTILS_AR)
+
+$(FINDUTILS_DIR)$(FINDUTILS_AR): $(patsubst %,$(FINDUTILS_DIR)%, $(FINDUTILS-y))
+	$(AR) -ro $@ $(patsubst %,$(FINDUTILS_DIR)%, $(FINDUTILS-y))
+
+$(FINDUTILS_DIR)%.o: $(srcdir)/%.c
+	$(CC) $(CFLAGS) $(EXTRA_CFLAGS) -c -o $@ $<
+
diff --git a/busybox/findutils/find.c b/busybox/findutils/find.c
new file mode 100644
index 0000000..11a838e
--- /dev/null
+++ b/busybox/findutils/find.c
@@ -0,0 +1,280 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * Mini find implementation for busybox
+ *
+ * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
+ *
+ * Reworked by David Douthitt <n9ubh@callsign.net> and
+ *  Matt Kraai <kraai@alumni.carnegiemellon.edu>.
+ *
+ * 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 <unistd.h>
+#include <dirent.h>
+#include <string.h>
+#include <stdlib.h>
+#include <fnmatch.h>
+#include <time.h>
+#include <ctype.h>
+#include "busybox.h"
+
+//XXX just found out about libbb/messages.c . maybe move stuff there ? - ghoz
+const char msg_req_arg[] = "option `%s' requires an argument";
+const char msg_invalid_arg[] = "invalid argument `%s' to `%s'";
+
+static char *pattern;
+
+#ifdef CONFIG_FEATURE_FIND_TYPE
+static int type_mask = 0;
+#endif
+
+#ifdef CONFIG_FEATURE_FIND_PERM
+static char perm_char = 0;
+static int perm_mask = 0;
+#endif
+
+#ifdef CONFIG_FEATURE_FIND_MTIME
+static char mtime_char;
+static int mtime_days;
+#endif
+
+#ifdef CONFIG_FEATURE_FIND_XDEV
+static dev_t *xdev_dev;
+static int xdev_count = 0;
+#endif
+
+#ifdef CONFIG_FEATURE_FIND_NEWER
+time_t newer_mtime;
+#endif
+
+#ifdef CONFIG_FEATURE_FIND_INUM
+static ino_t inode_num;
+#endif
+
+static int fileAction(const char *fileName, struct stat *statbuf, void* junk)
+{
+	if (pattern != NULL) {
+		const char *tmp = strrchr(fileName, '/');
+
+		if (tmp == NULL)
+			tmp = fileName;
+		else
+			tmp++;
+		if (!(fnmatch(pattern, tmp, FNM_PERIOD) == 0))
+			goto no_match;
+	}
+#ifdef CONFIG_FEATURE_FIND_TYPE
+	if (type_mask != 0) {
+		if (!((statbuf->st_mode & S_IFMT) == type_mask))
+			goto no_match;
+	}
+#endif
+#ifdef CONFIG_FEATURE_FIND_PERM
+	if (perm_mask != 0) {
+		if (!((isdigit(perm_char) && (statbuf->st_mode & 07777) == perm_mask) ||
+			 (perm_char == '-' && (statbuf->st_mode & perm_mask) == perm_mask) ||
+			 (perm_char == '+' && (statbuf->st_mode & perm_mask) != 0)))
+			goto no_match;
+	}
+#endif
+#ifdef CONFIG_FEATURE_FIND_MTIME
+	if (mtime_char != 0) {
+		time_t file_age = time(NULL) - statbuf->st_mtime;
+		time_t mtime_secs = mtime_days * 24 * 60 * 60;
+		if (!((isdigit(mtime_char) && file_age >= mtime_secs &&
+						file_age < mtime_secs + 24 * 60 * 60) ||
+				(mtime_char == '+' && file_age >= mtime_secs + 24 * 60 * 60) ||
+				(mtime_char == '-' && file_age < mtime_secs)))
+			goto no_match;
+	}
+#endif
+#ifdef CONFIG_FEATURE_FIND_XDEV
+	if (xdev_count) {
+		int i;
+		for (i=0; i<xdev_count; i++) {
+			if (xdev_dev[i] == statbuf-> st_dev)
+				break;
+		}
+		if (i == xdev_count) {
+			if(S_ISDIR(statbuf->st_mode))
+				return SKIP;
+			else
+				goto no_match;
+		}
+	}
+#endif
+#ifdef CONFIG_FEATURE_FIND_NEWER
+	if (newer_mtime != 0) {
+		time_t file_age = newer_mtime - statbuf->st_mtime;
+		if (file_age >= 0)
+			goto no_match;
+	}
+#endif
+#ifdef CONFIG_FEATURE_FIND_INUM
+	if (inode_num != 0) {
+		if (!(statbuf->st_ino == inode_num))
+			goto no_match;
+	}
+#endif
+	puts(fileName);
+no_match:
+	return (TRUE);
+}
+
+#ifdef CONFIG_FEATURE_FIND_TYPE
+static int find_type(char *type)
+{
+	int mask = 0;
+
+	switch (type[0]) {
+		case 'b':
+			mask = S_IFBLK;
+			break;
+		case 'c':
+			mask = S_IFCHR;
+			break;
+		case 'd':
+			mask = S_IFDIR;
+			break;
+		case 'p':
+			mask = S_IFIFO;
+			break;
+		case 'f':
+			mask = S_IFREG;
+			break;
+		case 'l':
+			mask = S_IFLNK;
+			break;
+		case 's':
+			mask = S_IFSOCK;
+			break;
+	}
+
+	if (mask == 0 || type[1] != '\0')
+		bb_error_msg_and_die(msg_invalid_arg, type, "-type");
+
+	return mask;
+}
+#endif
+
+int find_main(int argc, char **argv)
+{
+	int dereference = FALSE;
+	int i, firstopt, status = EXIT_SUCCESS;
+
+	for (firstopt = 1; firstopt < argc; firstopt++) {
+		if (argv[firstopt][0] == '-')
+			break;
+	}
+
+	/* Parse any options */
+	for (i = firstopt; i < argc; i++) {
+		if (strcmp(argv[i], "-follow") == 0)
+			dereference = TRUE;
+		else if (strcmp(argv[i], "-print") == 0) {
+			;
+			}
+		else if (strcmp(argv[i], "-name") == 0) {
+			if (++i == argc)
+				bb_error_msg_and_die(msg_req_arg, "-name");
+			pattern = argv[i];
+#ifdef CONFIG_FEATURE_FIND_TYPE
+		} else if (strcmp(argv[i], "-type") == 0) {
+			if (++i == argc)
+				bb_error_msg_and_die(msg_req_arg, "-type");
+			type_mask = find_type(argv[i]);
+#endif
+#ifdef CONFIG_FEATURE_FIND_PERM
+		} else if (strcmp(argv[i], "-perm") == 0) {
+			char *end;
+			if (++i == argc)
+				bb_error_msg_and_die(msg_req_arg, "-perm");
+			perm_mask = strtol(argv[i], &end, 8);
+			if ((end[0] != '\0') || (perm_mask > 07777))
+				bb_error_msg_and_die(msg_invalid_arg, argv[i], "-perm");
+			if ((perm_char = argv[i][0]) == '-')
+				perm_mask = -perm_mask;
+#endif
+#ifdef CONFIG_FEATURE_FIND_MTIME
+		} else if (strcmp(argv[i], "-mtime") == 0) {
+			char *end;
+			if (++i == argc)
+				bb_error_msg_and_die(msg_req_arg, "-mtime");
+			mtime_days = strtol(argv[i], &end, 10);
+			if (end[0] != '\0')
+				bb_error_msg_and_die(msg_invalid_arg, argv[i], "-mtime");
+			if ((mtime_char = argv[i][0]) == '-')
+				mtime_days = -mtime_days;
+#endif
+#ifdef CONFIG_FEATURE_FIND_XDEV
+		} else if (strcmp(argv[i], "-xdev") == 0) {
+			struct stat stbuf;
+
+			xdev_count = ( firstopt - 1 ) ? ( firstopt - 1 ) : 1;
+			xdev_dev = xmalloc ( xdev_count * sizeof( dev_t ));
+
+			if ( firstopt == 1 ) {
+				if ( stat ( ".", &stbuf ) < 0 )
+					bb_error_msg_and_die("could not stat '.'" );
+				xdev_dev [0] = stbuf. st_dev;
+			}
+			else {
+
+				for (i = 1; i < firstopt; i++) {
+					if ( stat ( argv [i], &stbuf ) < 0 )
+						bb_error_msg_and_die("could not stat '%s'", argv [i] );
+					xdev_dev [i-1] = stbuf. st_dev;
+				}
+			}
+#endif
+#ifdef CONFIG_FEATURE_FIND_NEWER
+		} else if (strcmp(argv[i], "-newer") == 0) {
+			struct stat stat_newer;
+			if (++i == argc)
+				bb_error_msg_and_die(msg_req_arg, "-newer");
+		    if (stat (argv[i], &stat_newer) != 0)
+				bb_error_msg_and_die("file %s not found", argv[i]);
+			newer_mtime = stat_newer.st_mtime;
+#endif
+#ifdef CONFIG_FEATURE_FIND_INUM
+		} else if (strcmp(argv[i], "-inum") == 0) {
+			char *end;
+			if (++i == argc)
+				bb_error_msg_and_die(msg_req_arg, "-inum");
+			inode_num = strtol(argv[i], &end, 10);
+			if (end[0] != '\0')
+				bb_error_msg_and_die(msg_invalid_arg, argv[i], "-inum");
+#endif
+		} else
+			bb_show_usage();
+	}
+
+	if (firstopt == 1) {
+		if (! recursive_action(".", TRUE, dereference, FALSE, fileAction,
+					fileAction, NULL))
+			status = EXIT_FAILURE;
+	} else {
+		for (i = 1; i < firstopt; i++) {
+			if (! recursive_action(argv[i], TRUE, dereference, FALSE, fileAction,
+						fileAction, NULL))
+				status = EXIT_FAILURE;
+		}
+	}
+
+	return status;
+}
diff --git a/busybox/findutils/grep.c b/busybox/findutils/grep.c
new file mode 100644
index 0000000..29f4ecd
--- /dev/null
+++ b/busybox/findutils/grep.c
@@ -0,0 +1,397 @@
+/*
+ * Mini grep implementation for busybox using libc regex.
+ *
+ * Copyright (C) 1999,2000,2001 by Lineo, inc. and Mark Whitley
+ * Copyright (C) 1999,2000,2001 by Mark Whitley <markw@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
+ *
+ */
+/*
+ * Apr 2004 by Vladimir Oleynik <dzo@simtreas.ru> -
+ * correction "-e pattern1 -e pattern2" logic and more optimizations.
+*/
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <getopt.h>
+#include <regex.h>
+#include <string.h>
+#include <errno.h>
+#include "busybox.h"
+
+
+/* options */
+#define GREP_OPTS "lnqvscFiHhe:f:L"
+#define GREP_OPT_l (1<<0)
+static char print_files_with_matches;
+#define GREP_OPT_n (1<<1)
+static char print_line_num;
+#define GREP_OPT_q (1<<2)
+static char be_quiet;
+#define GREP_OPT_v (1<<3)
+typedef char invert_search_t;
+static invert_search_t invert_search;
+#define GREP_OPT_s (1<<4)
+static char suppress_err_msgs;
+#define GREP_OPT_c (1<<5)
+static char print_match_counts;
+#define GREP_OPT_F (1<<6)
+static char fgrep_flag;
+#define GREP_OPT_i (1<<7)
+#define GREP_OPT_H (1<<8)
+#define GREP_OPT_h (1<<9)
+#define GREP_OPT_e (1<<10)
+#define GREP_OPT_f (1<<11)
+#define GREP_OPT_L (1<<12)
+static char print_files_without_matches;
+#ifdef CONFIG_FEATURE_GREP_CONTEXT
+#define GREP_OPT_CONTEXT "A:B:C"
+#define GREP_OPT_A (1<<13)
+#define GREP_OPT_B (1<<14)
+#define GREP_OPT_C (1<<15)
+#define GREP_OPT_E (1<<16)
+#else
+#define GREP_OPT_CONTEXT ""
+#define GREP_OPT_E (1<<13)
+#endif
+#ifdef CONFIG_FEATURE_GREP_EGREP_ALIAS
+# define OPT_EGREP "E"
+#else
+# define OPT_EGREP ""
+#endif
+
+static int reflags;
+static int print_filename;
+
+#ifdef CONFIG_FEATURE_GREP_CONTEXT
+static int lines_before;
+static int lines_after;
+static char **before_buf;
+static int last_line_printed;
+#endif /* CONFIG_FEATURE_GREP_CONTEXT */
+
+/* globals used internally */
+static llist_t *pattern_head;   /* growable list of patterns to match */
+static char *cur_file;          /* the current file we are reading */
+
+
+static void print_line(const char *line, int linenum, char decoration)
+{
+#ifdef CONFIG_FEATURE_GREP_CONTEXT
+	/* possibly print the little '--' separator */
+	if ((lines_before || lines_after) && last_line_printed &&
+			last_line_printed < linenum - 1) {
+		puts("--");
+	}
+	last_line_printed = linenum;
+#endif
+	if (print_filename)
+		printf("%s%c", cur_file, decoration);
+	if (print_line_num)
+		printf("%i%c", linenum, decoration);
+	puts(line);
+}
+
+extern void xregcomp(regex_t *preg, const char *regex, int cflags);
+
+
+static int grep_file(FILE *file)
+{
+	char *line;
+	invert_search_t ret;
+	int linenum = 0;
+	int nmatches = 0;
+#ifdef CONFIG_FEATURE_GREP_CONTEXT
+	int print_n_lines_after = 0;
+	int curpos = 0; /* track where we are in the circular 'before' buffer */
+	int idx = 0; /* used for iteration through the circular buffer */
+#endif /* CONFIG_FEATURE_GREP_CONTEXT */
+
+	while ((line = bb_get_chomped_line_from_file(file)) != NULL) {
+		llist_t *pattern_ptr = pattern_head;
+
+		linenum++;
+		ret = 0;
+		while (pattern_ptr) {
+			if (fgrep_flag) {
+				ret = strstr(line, pattern_ptr->data) != NULL;
+			} else {
+				/*
+				 * test for a postitive-assertion match (regexec returns success (0)
+				 * and the user did not specify invert search), or a negative-assertion
+				 * match (regexec returns failure (REG_NOMATCH) and the user specified
+				 * invert search)
+				 */
+				regex_t regex;
+				xregcomp(&regex, pattern_ptr->data, reflags);
+				ret |= regexec(&regex, line, 0, NULL, 0) == 0;
+				regfree(&regex);
+			}
+			pattern_ptr = pattern_ptr->link;
+		} /* while (pattern_ptr) */
+
+		if ((ret ^ invert_search)) {
+
+			if (print_files_with_matches || be_quiet)
+				free(line);
+
+			/* if we found a match but were told to be quiet, stop here */
+				if (be_quiet || print_files_without_matches)
+				return -1;
+
+				/* keep track of matches */
+				nmatches++;
+
+				/* if we're just printing filenames, we stop after the first match */
+				if (print_files_with_matches)
+					break;
+
+				/* print the matched line */
+				if (print_match_counts == 0) {
+#ifdef CONFIG_FEATURE_GREP_CONTEXT
+					int prevpos = (curpos == 0) ? lines_before - 1 : curpos - 1;
+
+					/* if we were told to print 'before' lines and there is at least
+					 * one line in the circular buffer, print them */
+					if (lines_before && before_buf[prevpos] != NULL) {
+						int first_buf_entry_line_num = linenum - lines_before;
+
+						/* advance to the first entry in the circular buffer, and
+						 * figure out the line number is of the first line in the
+						 * buffer */
+						idx = curpos;
+						while (before_buf[idx] == NULL) {
+							idx = (idx + 1) % lines_before;
+							first_buf_entry_line_num++;
+						}
+
+						/* now print each line in the buffer, clearing them as we go */
+						while (before_buf[idx] != NULL) {
+							print_line(before_buf[idx], first_buf_entry_line_num, '-');
+							free(before_buf[idx]);
+							before_buf[idx] = NULL;
+							idx = (idx + 1) % lines_before;
+							first_buf_entry_line_num++;
+						}
+					}
+
+					/* make a note that we need to print 'after' lines */
+					print_n_lines_after = lines_after;
+#endif /* CONFIG_FEATURE_GREP_CONTEXT */
+					print_line(line, linenum, ':');
+				}
+			}
+#ifdef CONFIG_FEATURE_GREP_CONTEXT
+			else { /* no match */
+				/* Add the line to the circular 'before' buffer */
+				if(lines_before) {
+					free(before_buf[curpos]);
+					before_buf[curpos] = bb_xstrdup(line);
+					curpos = (curpos + 1) % lines_before;
+				}
+			}
+
+			/* if we need to print some context lines after the last match, do so */
+			if (print_n_lines_after && (last_line_printed != linenum)) {
+				print_line(line, linenum, '-');
+				print_n_lines_after--;
+			}
+#endif /* CONFIG_FEATURE_GREP_CONTEXT */
+		free(line);
+	}
+
+
+	/* special-case file post-processing for options where we don't print line
+	 * matches, just filenames and possibly match counts */
+
+	/* grep -c: print [filename:]count, even if count is zero */
+	if (print_match_counts) {
+		if (print_filename)
+			printf("%s:", cur_file);
+		    printf("%d\n", nmatches);
+	}
+
+	/* grep -l: print just the filename, but only if we grepped the line in the file  */
+	if (print_files_with_matches && nmatches > 0) {
+		puts(cur_file);
+	}
+
+	/* grep -L: print just the filename, but only if we didn't grep the line in the file  */
+	if (print_files_without_matches && nmatches == 0) {
+		puts(cur_file);
+	}
+
+	return nmatches;
+}
+
+static void load_regexes_from_file(llist_t *fopt)
+{
+	char *line;
+	FILE *f;
+
+	while(fopt) {
+		llist_t *cur = fopt;
+		char *ffile = cur->data;
+
+		fopt = cur->link;
+		free(cur);
+		f = bb_xfopen(ffile, "r");
+		while ((line = bb_get_chomped_line_from_file(f)) != NULL) {
+			pattern_head = llist_add_to(pattern_head, line);
+		}
+	}
+}
+
+
+extern int grep_main(int argc, char **argv)
+{
+	FILE *file;
+	int matched;
+	unsigned long opt;
+	llist_t *fopt = NULL;
+
+	/* do normal option parsing */
+#ifdef CONFIG_FEATURE_GREP_CONTEXT
+  {
+	char *junk;
+	char *slines_after;
+	char *slines_before;
+	char *Copt;
+
+	bb_opt_complementaly = "H-h:e*:f*:C-AB";
+	opt = bb_getopt_ulflags(argc, argv,
+		GREP_OPTS GREP_OPT_CONTEXT OPT_EGREP,
+		&pattern_head, &fopt,
+		&slines_after, &slines_before, &Copt);
+
+	if(opt & GREP_OPT_C) {
+		/* C option unseted A and B options, but next -A or -B
+		   may be ovewrite own option */
+		if(!(opt & GREP_OPT_A))         /* not overwtited */
+			slines_after = Copt;
+		if(!(opt & GREP_OPT_B))         /* not overwtited */
+			slines_before = Copt;
+		opt |= GREP_OPT_A|GREP_OPT_B;   /* set for parse now */
+	}
+	if(opt & GREP_OPT_A) {
+		lines_after = strtoul(slines_after, &junk, 10);
+				if(*junk != '\0')
+					bb_error_msg_and_die("invalid context length argument");
+	}
+	if(opt & GREP_OPT_B) {
+		lines_before = strtoul(slines_before, &junk, 10);
+				if(*junk != '\0')
+					bb_error_msg_and_die("invalid context length argument");
+		}
+	/* sanity checks after parse may be invalid numbers ;-) */
+	if ((opt & (GREP_OPT_c|GREP_OPT_q|GREP_OPT_l|GREP_OPT_L))) {
+		opt &= ~GREP_OPT_n;
+		lines_before = 0;
+		lines_after = 0;
+	} else if(lines_before > 0)
+		before_buf = (char **)xcalloc(lines_before, sizeof(char *));
+	}
+#else
+	/* with auto sanity checks */
+	bb_opt_complementaly = "H-h:e*:f*:c-n:q-n:l-n";
+	opt = bb_getopt_ulflags(argc, argv, GREP_OPTS OPT_EGREP,
+		&pattern_head, &fopt);
+
+#endif
+	print_files_with_matches = opt & GREP_OPT_l;
+	print_files_without_matches = (opt & GREP_OPT_L) != 0;
+	print_line_num = opt & GREP_OPT_n;
+	be_quiet = opt & GREP_OPT_q;
+	invert_search = (opt & GREP_OPT_v) != 0;        /* 0 | 1 */
+	suppress_err_msgs = opt & GREP_OPT_s;
+	print_match_counts = opt & GREP_OPT_c;
+	fgrep_flag = opt & GREP_OPT_F;
+	if(opt & GREP_OPT_H)
+		print_filename++;
+	if(opt & GREP_OPT_h)
+		print_filename--;
+	if(opt & GREP_OPT_f)
+		load_regexes_from_file(fopt);
+
+#ifdef CONFIG_FEATURE_GREP_EGREP_ALIAS
+	if(bb_applet_name[0] == 'e' || (opt & GREP_OPT_E))
+		reflags = REG_EXTENDED | REG_NOSUB;
+	else
+#endif
+		reflags = REG_NOSUB;
+
+	if(opt & GREP_OPT_i)
+		reflags |= REG_ICASE;
+
+	argv += optind;
+	argc -= optind;
+
+	/* if we didn't get a pattern from a -e and no command file was specified,
+	 * argv[optind] should be the pattern. no pattern, no worky */
+	if (pattern_head == NULL) {
+		if (*argv == NULL)
+			bb_show_usage();
+		else {
+			pattern_head = llist_add_to(pattern_head, *argv++);
+			argc--;
+		}
+	}
+
+	/* argv[(optind)..(argc-1)] should be names of file to grep through. If
+	 * there is more than one file to grep, we will print the filenames */
+	if (argc > 1) {
+		print_filename++;
+
+	/* If no files were specified, or '-' was specified, take input from
+	 * stdin. Otherwise, we grep through all the files specified. */
+	} else if (argc == 0) {
+		argc++;
+	}
+	matched = 0;
+	while (argc--) {
+		cur_file = *argv++;
+		if(!cur_file || (*cur_file == '-' && !cur_file[1])) {
+			cur_file = "-";
+			file = stdin;
+		} else {
+			file = fopen(cur_file, "r");
+		}
+			if (file == NULL) {
+				if (!suppress_err_msgs)
+					bb_perror_msg("%s", cur_file);
+		} else {
+			matched += grep_file(file);
+			if(matched < 0) {
+				/* we found a match but were told to be quiet, stop here and
+				* return success */
+				break;
+			}
+				fclose(file);
+			}
+		}
+
+#ifdef CONFIG_FEATURE_CLEAN_UP
+	/* destroy all the elments in the pattern list */
+	while (pattern_head) {
+		llist_t *pattern_head_ptr = pattern_head;
+
+		pattern_head = pattern_head->link;
+		free(pattern_head_ptr);
+	}
+#endif
+
+	return !matched; /* invert return value 0 = success, 1 = failed */
+}
diff --git a/busybox/findutils/xargs.c b/busybox/findutils/xargs.c
new file mode 100644
index 0000000..1a43478
--- /dev/null
+++ b/busybox/findutils/xargs.c
@@ -0,0 +1,586 @@
+/*
+ * Mini xargs implementation for busybox
+ * Options are supported: "-prtx -n max_arg -s max_chars -e[ouf_str]"
+ *
+ * (C) 2002,2003 by Vladimir Oleynik <dzo@simtreas.ru>
+ *
+ * Special thanks
+ * - Mark Whitley and Glenn McGrath for stimulus to rewrite :)
+ * - Mike Rendell <michael@cs.mun.ca>
+ * and David MacKenzie <djm@gnu.ai.mit.edu>.
+ *
+ * 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
+ *
+ * xargs is described in the Single Unix Specification v3 at
+ * http://www.opengroup.org/onlinepubs/007904975/utilities/xargs.html
+ *
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <getopt.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include "busybox.h"
+
+/* COMPAT:  SYSV version defaults size (and has a max value of) to 470.
+   We try to make it as large as possible. */
+#if !defined(ARG_MAX) && defined(_SC_ARG_MAX)
+#define ARG_MAX sysconf (_SC_ARG_MAX)
+#endif
+#ifndef ARG_MAX
+#define ARG_MAX 470
+#endif
+
+
+#ifdef TEST
+# ifndef CONFIG_FEATURE_XARGS_SUPPORT_CONFIRMATION
+#  define CONFIG_FEATURE_XARGS_SUPPORT_CONFIRMATION
+# endif
+# ifndef CONFIG_FEATURE_XARGS_SUPPORT_QUOTES
+#  define CONFIG_FEATURE_XARGS_SUPPORT_QUOTES
+# endif
+# ifndef CONFIG_FEATURE_XARGS_SUPPORT_TERMOPT
+#  define CONFIG_FEATURE_XARGS_SUPPORT_TERMOPT
+# endif
+# ifndef CONFIG_FEATURE_XARGS_SUPPORT_ZERO_TERM
+#  define CONFIG_FEATURE_XARGS_SUPPORT_ZERO_TERM
+# endif
+#endif
+
+/*
+   This function have special algorithm.
+   Don`t use fork and include to main!
+*/
+static int xargs_exec(char *const *args)
+{
+	pid_t p;
+	volatile int exec_errno = 0;	/* shared vfork stack */
+
+	if ((p = vfork()) >= 0) {
+		if (p == 0) {
+			/* vfork -- child */
+			execvp(args[0], args);
+			exec_errno = errno;	/* set error to shared stack */
+			_exit(1);
+		} else {
+			/* vfork -- parent */
+			int status;
+
+			while (wait(&status) == (pid_t) - 1)
+				if (errno != EINTR)
+					break;
+			if (exec_errno) {
+				errno = exec_errno;
+				bb_perror_msg("%s", args[0]);
+				return exec_errno == ENOENT ? 127 : 126;
+			} else {
+				if (WEXITSTATUS(status) == 255) {
+					bb_error_msg("%s: exited with status 255; aborting", args[0]);
+					return 124;
+				}
+				if (WIFSTOPPED(status)) {
+					bb_error_msg("%s: stopped by signal %d",
+						args[0], WSTOPSIG(status));
+					return 125;
+				}
+				if (WIFSIGNALED(status)) {
+					bb_error_msg("%s: terminated by signal %d",
+						args[0], WTERMSIG(status));
+					return 125;
+				}
+				if (WEXITSTATUS(status) != 0)
+					return 123;
+				return 0;
+			}
+		}
+	} else {
+		bb_perror_msg_and_die("vfork");
+	}
+}
+
+
+typedef struct xlist_s {
+	char *data;
+	size_t lenght;
+	struct xlist_s *link;
+} xlist_t;
+
+static int eof_stdin_detected;
+
+#define ISBLANK(c) ((c) == ' ' || (c) == '\t')
+#define ISSPACE(c) (ISBLANK (c) || (c) == '\n' || (c) == '\r' \
+		    || (c) == '\f' || (c) == '\v')
+
+#ifdef CONFIG_FEATURE_XARGS_SUPPORT_QUOTES
+static xlist_t *process_stdin(xlist_t * list_arg,
+	const char *eof_str, size_t mc, char *buf)
+{
+#define NORM      0
+#define QUOTE     1
+#define BACKSLASH 2
+#define SPACE     4
+
+	char *s = NULL;		/* start word */
+	char *p = NULL;		/* pointer to end word */
+	char q = 0;		/* quote char */
+	char state = NORM;
+	char eof_str_detected = 0;
+	size_t line_l = 0;	/* size loaded args line */
+	int c;			/* current char */
+	xlist_t *cur;
+	xlist_t *prev;
+
+	for (prev = cur = list_arg; cur; cur = cur->link) {
+		line_l += cur->lenght;	/* previous allocated */
+		if (prev != cur)
+			prev = prev->link;
+	}
+
+	while (!eof_stdin_detected) {
+		c = getchar();
+		if (c == EOF) {
+			eof_stdin_detected++;
+			if (s)
+				goto unexpected_eof;
+			break;
+		}
+		if (eof_str_detected)
+			continue;
+		if (state == BACKSLASH) {
+			state = NORM;
+			goto set;
+		} else if (state == QUOTE) {
+			if (c == q) {
+				q = 0;
+				state = NORM;
+			} else {
+				goto set;
+			}
+		} else { /* if(state == NORM) */
+
+			if (ISSPACE(c)) {
+				if (s) {
+unexpected_eof:
+					state = SPACE;
+					c = 0;
+					goto set;
+				}
+			} else {
+				if (s == NULL)
+					s = p = buf;
+				if (c == '\\') {
+					state = BACKSLASH;
+				} else if (c == '\'' || c == '"') {
+					q = c;
+					state = QUOTE;
+				} else {
+set:
+					if ((p - buf) >= mc)
+						bb_error_msg_and_die("argument line too long");
+					*p++ = c;
+				}
+			}
+		}
+		if (state == SPACE) {	/* word's delimiter or EOF detected */
+			if (q) {
+				bb_error_msg_and_die("unmatched %s quote",
+					q == '\'' ? "single" : "double");
+			}
+			/* word loaded */
+			if (eof_str) {
+				eof_str_detected = strcmp(s, eof_str) == 0;
+			}
+			if (!eof_str_detected) {
+				size_t lenght = (p - buf);
+
+				cur = xmalloc(sizeof(xlist_t) + lenght);
+				cur->data = memcpy(cur + 1, s, lenght);
+				cur->lenght = lenght;
+				cur->link = NULL;
+				if (prev == NULL) {
+					list_arg = cur;
+				} else {
+					prev->link = cur;
+				}
+				prev = cur;
+				line_l += lenght;
+				if (line_l > mc) {
+					/* stop memory usage :-) */
+					break;
+				}
+			}
+			s = NULL;
+			state = NORM;
+		}
+	}
+	return list_arg;
+}
+#else
+/* The variant does not support single quotes, double quotes or backslash */
+static xlist_t *process_stdin(xlist_t * list_arg,
+	const char *eof_str, size_t mc, char *buf)
+{
+
+	int c;			/* current char */
+	int eof_str_detected = 0;
+	char *s = NULL;		/* start word */
+	char *p = NULL;		/* pointer to end word */
+	size_t line_l = 0;	/* size loaded args line */
+	xlist_t *cur;
+	xlist_t *prev;
+
+	for (prev = cur = list_arg; cur; cur = cur->link) {
+		line_l += cur->lenght;	/* previous allocated */
+		if (prev != cur)
+			prev = prev->link;
+	}
+
+	while (!eof_stdin_detected) {
+		c = getchar();
+		if (c == EOF) {
+			eof_stdin_detected++;
+		}
+		if (eof_str_detected)
+			continue;
+		if (c == EOF || ISSPACE(c)) {
+			if (s == NULL)
+				continue;
+			c = EOF;
+		}
+		if (s == NULL)
+			s = p = buf;
+		if ((p - buf) >= mc)
+			bb_error_msg_and_die("argument line too long");
+		*p++ = c == EOF ? 0 : c;
+		if (c == EOF) {	/* word's delimiter or EOF detected */
+			/* word loaded */
+			if (eof_str) {
+				eof_str_detected = strcmp(s, eof_str) == 0;
+			}
+			if (!eof_str_detected) {
+				size_t lenght = (p - buf);
+
+				cur = xmalloc(sizeof(xlist_t) + lenght);
+				cur->data = memcpy(cur + 1, s, lenght);
+				cur->lenght = lenght;
+				cur->link = NULL;
+				if (prev == NULL) {
+					list_arg = cur;
+				} else {
+					prev->link = cur;
+				}
+				prev = cur;
+				line_l += lenght;
+				if (line_l > mc) {
+					/* stop memory usage :-) */
+					break;
+				}
+				s = NULL;
+			}
+		}
+	}
+	return list_arg;
+}
+#endif /* CONFIG_FEATURE_XARGS_SUPPORT_QUOTES */
+
+
+#ifdef CONFIG_FEATURE_XARGS_SUPPORT_CONFIRMATION
+/* Prompt the user for a response, and
+   if the user responds affirmatively, return true;
+   otherwise, return false. Used "/dev/tty", not stdin. */
+static int xargs_ask_confirmation(void)
+{
+	static FILE *tty_stream;
+	int c, savec;
+
+	if (!tty_stream) {
+		tty_stream = fopen("/dev/tty", "r");
+		if (!tty_stream)
+			bb_perror_msg_and_die("/dev/tty");
+		/* pranoidal security by vodz */
+		fcntl(fileno(tty_stream), F_SETFD, FD_CLOEXEC);
+	}
+	fputs(" ?...", stderr);
+	fflush(stderr);
+	c = savec = getc(tty_stream);
+	while (c != EOF && c != '\n')
+		c = getc(tty_stream);
+	if (savec == 'y' || savec == 'Y')
+		return 1;
+	return 0;
+}
+
+# define OPT_INC_P 1
+#else
+# define OPT_INC_P 0
+# define xargs_ask_confirmation() 1
+#endif /* CONFIG_FEATURE_XARGS_SUPPORT_CONFIRMATION */
+
+#ifdef CONFIG_FEATURE_XARGS_SUPPORT_TERMOPT
+# define OPT_INC_X 1
+#else
+# define OPT_INC_X 0
+#endif
+
+#ifdef CONFIG_FEATURE_XARGS_SUPPORT_ZERO_TERM
+static xlist_t *process0_stdin(xlist_t * list_arg, const char *eof_str,
+							   size_t mc, char *buf)
+{
+	int c;			/* current char */
+	char *s = NULL;		/* start word */
+	char *p = NULL;		/* pointer to end word */
+	size_t line_l = 0;	/* size loaded args line */
+	xlist_t *cur;
+	xlist_t *prev;
+
+	for (prev = cur = list_arg; cur; cur = cur->link) {
+		line_l += cur->lenght;	/* previous allocated */
+		if (prev != cur)
+			prev = prev->link;
+	}
+
+	while (!eof_stdin_detected) {
+		c = getchar();
+		if (c == EOF) {
+			eof_stdin_detected++;
+			if (s == NULL)
+				break;
+			c = 0;
+		}
+		if (s == NULL)
+			s = p = buf;
+		if ((p - buf) >= mc)
+			bb_error_msg_and_die("argument line too long");
+		*p++ = c;
+		if (c == 0) {	/* word's delimiter or EOF detected */
+			/* word loaded */
+			size_t lenght = (p - buf);
+
+			cur = xmalloc(sizeof(xlist_t) + lenght);
+			cur->data = memcpy(cur + 1, s, lenght);
+			cur->lenght = lenght;
+			cur->link = NULL;
+			if (prev == NULL) {
+				list_arg = cur;
+			} else {
+				prev->link = cur;
+			}
+			prev = cur;
+			line_l += lenght;
+			if (line_l > mc) {
+				/* stop memory usage :-) */
+				break;
+			}
+			s = NULL;
+		}
+	}
+	return list_arg;
+}
+
+# define READ_ARGS(l, e, nmc, mc) (*read_args)(l, e, nmc, mc)
+# define OPT_INC_0 1	/* future use */
+#else
+# define OPT_INC_0 0	/* future use */
+# define READ_ARGS(l, e, nmc, mc) process_stdin(l, e, nmc, mc)
+#endif /* CONFIG_FEATURE_XARGS_SUPPORT_ZERO_TERM */
+
+
+#define OPT_VERBOSE     (1<<0)
+#define OPT_NO_EMPTY    (1<<1)
+#define OPT_UPTO_NUMBER (1<<2)
+#define OPT_UPTO_SIZE   (1<<3)
+#define OPT_EOF_STRING  (1<<4)
+#ifdef CONFIG_FEATURE_XARGS_SUPPORT_CONFIRMATION
+#define OPT_INTERACTIVE (1<<5)
+#else
+#define OPT_INTERACTIVE (0)	/* require for algorithm &| */
+#endif
+#define OPT_TERMINATE   (1<<(5+OPT_INC_P))
+#define OPT_ZEROTERM    (1<<(5+OPT_INC_P+OPT_INC_X))
+/* next future
+#define OPT_NEXT_OTHER  (1<<(5+OPT_INC_P+OPT_INC_X+OPT_INC_0))
+*/
+
+int xargs_main(int argc, char **argv)
+{
+	char **args;
+	int i, a, n;
+	xlist_t *list = NULL;
+	xlist_t *cur;
+	int child_error = 0;
+	char *max_args, *max_chars;
+	int n_max_arg;
+	size_t n_chars = 0;
+	long orig_arg_max;
+	const char *eof_str = "_";
+	unsigned long opt;
+	size_t n_max_chars;
+
+#ifdef CONFIG_FEATURE_XARGS_SUPPORT_ZERO_TERM
+	xlist_t *(*read_args) (xlist_t *, const char *, size_t, char *) = process_stdin;
+#endif
+
+#ifdef CONFIG_FEATURE_XARGS_SUPPORT_CONFIRMATION
+	bb_opt_complementaly = "pt";
+#endif
+
+	opt = bb_getopt_ulflags(argc, argv, "+trn:s:e::"
+#ifdef CONFIG_FEATURE_XARGS_SUPPORT_CONFIRMATION
+	"p"
+#endif
+#ifdef CONFIG_FEATURE_XARGS_SUPPORT_TERMOPT
+	"x"
+#endif
+#ifdef CONFIG_FEATURE_XARGS_SUPPORT_ZERO_TERM
+	"0"
+#endif
+	,&max_args, &max_chars, &eof_str);
+
+	a = argc - optind;
+	argv += optind;
+	if (a == 0) {
+		/* default behavior is to echo all the filenames */
+		*argv = "echo";
+		a++;
+	}
+
+	orig_arg_max = ARG_MAX;
+	if (orig_arg_max == -1)
+		orig_arg_max = LONG_MAX;
+	orig_arg_max -= 2048;	/* POSIX.2 requires subtracting 2048.  */
+	if ((opt & OPT_UPTO_SIZE)) {
+		n_max_chars = bb_xgetularg10_bnd(max_chars, 1, orig_arg_max);
+		for (i = 0; i < a; i++) {
+			n_chars += strlen(*argv) + 1;
+		}
+		if (n_max_chars < n_chars) {
+			bb_error_msg_and_die("can not fit single argument within argument list size limit");
+		}
+		n_max_chars -= n_chars;
+	} else {
+		/* Sanity check for systems with huge ARG_MAX defines (e.g., Suns which
+		   have it at 1 meg).  Things will work fine with a large ARG_MAX but it
+		   will probably hurt the system more than it needs to; an array of this
+		   size is allocated.  */
+		if (orig_arg_max > 20 * 1024)
+			orig_arg_max = 20 * 1024;
+		n_max_chars = orig_arg_max;
+	}
+	max_chars = xmalloc(n_max_chars);
+
+	if ((opt & OPT_UPTO_NUMBER)) {
+		n_max_arg = bb_xgetularg10_bnd(max_args, 1, INT_MAX);
+	} else {
+		n_max_arg = n_max_chars;
+	}
+
+#ifdef CONFIG_FEATURE_XARGS_SUPPORT_ZERO_TERM
+	if (opt & OPT_ZEROTERM)
+		read_args = process0_stdin;
+#endif
+
+	while ((list = READ_ARGS(list, eof_str, n_max_chars, max_chars)) != NULL ||
+		(opt & OPT_NO_EMPTY) == 0)
+	{
+		opt |= OPT_NO_EMPTY;
+		n = 0;
+		n_chars = 0;
+#ifdef CONFIG_FEATURE_XARGS_SUPPORT_TERMOPT
+		for (cur = list; cur;) {
+			n_chars += cur->lenght;
+			n++;
+			cur = cur->link;
+			if (n_chars > n_max_chars || (n == n_max_arg && cur)) {
+				if (opt & OPT_TERMINATE)
+					bb_error_msg_and_die("argument list too long");
+				break;
+			}
+		}
+#else
+		for (cur = list; cur; cur = cur->link) {
+			n_chars += cur->lenght;
+			n++;
+			if (n_chars > n_max_chars || n == n_max_arg) {
+				break;
+			}
+		}
+#endif /* CONFIG_FEATURE_XARGS_SUPPORT_TERMOPT */
+
+		/* allocating pointers for execvp:
+		   a*arg, n*arg from stdin, NULL */
+		args = xcalloc(n + a + 1, sizeof(char *));
+
+		/* Store the command to be executed
+		   (taken from the command line) */
+		for (i = 0; i < a; i++)
+			args[i] = argv[i];
+		/* (taken from stdin) */
+		for (cur = list; n; cur = cur->link) {
+			args[i++] = cur->data;
+			n--;
+		}
+
+		if ((opt & (OPT_INTERACTIVE | OPT_VERBOSE))) {
+			for (i = 0; args[i]; i++) {
+				if (i)
+					fputc(' ', stderr);
+				fputs(args[i], stderr);
+			}
+			if ((opt & OPT_INTERACTIVE) == 0)
+				fputc('\n', stderr);
+		}
+		if ((opt & OPT_INTERACTIVE) == 0 || xargs_ask_confirmation() != 0) {
+			child_error = xargs_exec(args);
+		}
+
+		/* clean up */
+		for (i = a; args[i]; i++) {
+			cur = list;
+			list = list->link;
+			free(cur);
+		}
+		free(args);
+		if (child_error > 0 && child_error != 123) {
+			break;
+		}
+	}
+#ifdef CONFIG_FEATURE_CLEAN_UP
+	free(max_chars);
+#endif
+	return child_error;
+}
+
+
+#ifdef TEST
+
+const char *bb_applet_name = "debug stuff usage";
+
+void bb_show_usage(void)
+{
+	fprintf(stderr, "Usage: %s [-p] [-r] [-t] -[x] [-n max_arg] [-s max_chars]\n",
+		bb_applet_name);
+	exit(1);
+}
+
+int main(int argc, char **argv)
+{
+	return xargs_main(argc, argv);
+}
+#endif /* TEST */