package/busybox: update to busybox-1.17.3

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@23435 3c298f89-4303-0410-b956-a3cf2f4a3e73

4 files changed, 2 insertions, 628 deletions

diff --git a/package/busybox/Makefile b/package/busybox/Makefile
index 4ea9a61e4e..2ac67098f7 100644
--- a/package/busybox/Makefile
+++ b/package/busybox/Makefile
@@ -8,13 +8,13 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=busybox
-PKG_VERSION:=1.17.2
+PKG_VERSION:=1.17.3
 PKG_RELEASE:=1
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.bz2
 PKG_SOURCE_URL:=http://www.busybox.net/downloads \
 		http://distfiles.gentoo.org/distfiles/
-PKG_MD5SUM:=7360b7138b899ee7fc885791c740c3c3
+PKG_MD5SUM:=a2ce1a951571da8c6e0eaf75b1acef60
 
 PKG_BUILD_PARALLEL:=1
 
diff --git a/package/busybox/patches/000-upstream-compat.patch b/package/busybox/patches/000-upstream-compat.patch
deleted file mode 100644
index 1f474f2eed..0000000000
--- a/package/busybox/patches/000-upstream-compat.patch
+++ /dev/null
@@ -1,14 +0,0 @@
---- a/networking/libiproute/iplink.c
-+++ b/networking/libiproute/iplink.c
-@@ -15,6 +15,11 @@
- #include "rt_names.h"
- #include "utils.h"
- 
-+#ifndef IFLA_LINKINFO
-+# define IFLA_LINKINFO 18
-+# define IFLA_INFO_KIND 1
-+#endif
-+
- /* taken from linux/sockios.h */
- #define SIOCSIFNAME	0x8923		/* set interface name */
- 
diff --git a/package/busybox/patches/000-upstream-hush.patch b/package/busybox/patches/000-upstream-hush.patch
deleted file mode 100644
index 897372695c..0000000000
--- a/package/busybox/patches/000-upstream-hush.patch
+++ /dev/null
@@ -1,119 +0,0 @@
---- a/shell/hush.c
-+++ b/shell/hush.c
-@@ -1853,7 +1853,7 @@ static void o_addblock_duplicate_backsla
- 	while (len) {
- 		o_addchr(o, *str);
- 		if (*str++ == '\\'
--		 && (*str != '*' && *str != '?' && *str != '[')
-+//		 && (*str != '*' && *str != '?' && *str != '[')
- 		) {
- 			o_addchr(o, '\\');
- 		}
-@@ -2834,18 +2834,22 @@ static NOINLINE int expand_vars_to_list(
- 	return n;
- }
- 
--static char **expand_variables(char **argv, int or_mask)
-+enum {
-+	EXPVAR_FLAG_GLOB = 0x200,
-+	EXPVAR_FLAG_ESCAPE_VARS = 0x100,
-+	EXPVAR_FLAG_SINGLEWORD = 0x80, /* must be 0x80 */
-+};
-+static char **expand_variables(char **argv, unsigned or_mask)
- {
- 	int n;
- 	char **list;
- 	char **v;
- 	o_string output = NULL_O_STRING;
- 
--	if (or_mask & 0x100) {
--		output.o_escape = 1; /* protect against globbing for "$var" */
--		/* (unquoted $var will temporarily switch it off) */
--		output.o_glob = 1;
--	}
-+	/* protect against globbing for "$var"? */
-+	/* (unquoted $var will temporarily switch it off) */
-+	output.o_escape = 1 & (or_mask / EXPVAR_FLAG_ESCAPE_VARS);
-+	output.o_glob = 1 & (or_mask / EXPVAR_FLAG_GLOB);
- 
- 	n = 0;
- 	v = argv;
-@@ -2863,13 +2867,13 @@ static char **expand_variables(char **ar
- 
- static char **expand_strvec_to_strvec(char **argv)
- {
--	return expand_variables(argv, 0x100);
-+	return expand_variables(argv, EXPVAR_FLAG_GLOB | EXPVAR_FLAG_ESCAPE_VARS);
- }
- 
- #if ENABLE_HUSH_BASH_COMPAT
- static char **expand_strvec_to_strvec_singleword_noglob(char **argv)
- {
--	return expand_variables(argv, 0x80);
-+	return expand_variables(argv, EXPVAR_FLAG_SINGLEWORD);
- }
- #endif
- 
-@@ -2909,15 +2913,15 @@ static char **expand_strvec_to_strvec_si
- #endif
- 
- /* Used for expansion of right hand of assignments */
--/* NB: should NOT do globbing! "export v=/bin/c*; env | grep ^v=" outputs
-- * "v=/bin/c*" */
-+/* NB: should NOT do globbing!
-+ * "export v=/bin/c*; env | grep ^v=" outputs "v=/bin/c*" */
- static char *expand_string_to_string(const char *str)
- {
- 	char *argv[2], **list;
- 
- 	argv[0] = (char*)str;
- 	argv[1] = NULL;
--	list = expand_variables(argv, 0x80); /* 0x80: singleword expansion */
-+	list = expand_variables(argv, EXPVAR_FLAG_ESCAPE_VARS | EXPVAR_FLAG_SINGLEWORD);
- 	if (HUSH_DEBUG)
- 		if (!list[0] || list[1])
- 			bb_error_msg_and_die("BUG in varexp2");
-@@ -2933,7 +2937,7 @@ static char* expand_strvec_to_string(cha
- {
- 	char **list;
- 
--	list = expand_variables(argv, 0x80);
-+	list = expand_variables(argv, EXPVAR_FLAG_SINGLEWORD);
- 	/* Convert all NULs to spaces */
- 	if (list[0]) {
- 		int n = 1;
---- /dev/null
-+++ b/shell/hush_test/hush-vars/var_unbackslash.right
-@@ -0,0 +1,9 @@
-+b1=-qwerty-t-\-"---z-*-?-
-+b1=-qwerty-t-\-"---z-*-?-
-+b2=-$a-\t-\\-\"-\--\z-\*-\?-
-+b2=-$a-\t-\\-\"-\--\z-\*-\?-
-+c=-$a-\t-\\-\"-\--\z-\*-\?-
-+c=-$a-\t-\\-\"-\--\z-\*-\?-
-+c=-$a-\t-\\-\"-\--\z-\*-\?-
-+c=-$a-\t-\\-\"-\--\z-\*-\?-
-+Done: 0
---- /dev/null
-+++ b/shell/hush_test/hush-vars/var_unbackslash.tests
-@@ -0,0 +1,20 @@
-+# Test for correct handling of backslashes
-+a=qwerty
-+
-+b=-$a-\t-\\-\"-\--\z-\*-\?-
-+echo b1=$b
-+echo "b1=$b"
-+b='-$a-\t-\\-\"-\--\z-\*-\?-'
-+echo b2=$b
-+echo "b2=$b"
-+
-+c=$b
-+echo "c=$c"
-+c=${b}
-+echo "c=$c"
-+c="$b"
-+echo "c=$c"
-+c="${b}"
-+echo "c=$c"
-+
-+echo "Done: $?"
diff --git a/package/busybox/patches/000-upstream-lineedit.patch b/package/busybox/patches/000-upstream-lineedit.patch
deleted file mode 100644
index 0050edf6c7..0000000000
--- a/package/busybox/patches/000-upstream-lineedit.patch
+++ /dev/null
@@ -1,493 +0,0 @@
---- a/libbb/lineedit.c
-+++ b/libbb/lineedit.c
-@@ -156,7 +156,6 @@ struct lineedit_statics {
- 
- 	/* Formerly these were big buffers on stack: */
- #if ENABLE_FEATURE_TAB_COMPLETION
--	char exe_n_cwd_tab_completion__dirbuf[MAX_LINELEN];
- 	char input_tab__matchBuf[MAX_LINELEN];
- 	int16_t find_match__int_buf[MAX_LINELEN + 1]; /* need to have 9 bits at least */
- 	int16_t find_match__pos_buf[MAX_LINELEN + 1];
-@@ -235,6 +234,8 @@ static unsigned save_string(char *dst, u
- 	while (dstpos < maxsize) {
- 		wchar_t wc;
- 		int n = srcpos;
-+
-+		/* Convert up to 1st invalid byte (or up to end) */
- 		while ((wc = command_ps[srcpos]) != 0
- 		    && !unicode_is_raw_byte(wc)
- 		) {
-@@ -247,6 +248,7 @@ static unsigned save_string(char *dst, u
- 		dstpos += n;
- 		if (wc == 0) /* usually is */
- 			break;
-+
- 		/* We do have invalid byte here! */
- 		command_ps[srcpos] = wc; /* restore it */
- 		srcpos++;
-@@ -608,53 +610,56 @@ static void add_match(char *matched)
- }
- 
- #if ENABLE_FEATURE_USERNAME_COMPLETION
--static void username_tab_completion(char *ud, char *with_shash_flg)
-+/* Replace "~user/..." with "/homedir/...".
-+ * The parameter is malloced, free it or return it
-+ * unchanged if no user is matched.
-+ */
-+static char *username_path_completion(char *ud)
- {
- 	struct passwd *entry;
-+	char *tilde_name = ud;
-+	char *home = NULL;
-+
-+	ud++; /* skip ~ */
-+	if (*ud == '/') {       /* "~/..." */
-+		home = home_pwd_buf;
-+	} else {
-+		/* "~user/..." */
-+		ud = strchr(ud, '/');
-+		*ud = '\0';           /* "~user" */
-+		entry = getpwnam(tilde_name + 1);
-+		*ud = '/';            /* restore "~user/..." */
-+		if (entry)
-+			home = entry->pw_dir;
-+	}
-+	if (home) {
-+		ud = concat_path_file(home, ud);
-+		free(tilde_name);
-+		tilde_name = ud;
-+	}
-+	return tilde_name;
-+}
-+
-+/* ~use<tab> - find all users with this prefix */
-+static NOINLINE void username_completion(const char *ud)
-+{
-+	/* Using _r function to avoid pulling in static buffers */
-+	char line_buff[256];
-+	struct passwd pwd;
-+	struct passwd *result;
- 	int userlen;
- 
--	ud++;                           /* ~user/... to user/... */
-+	ud++; /* skip ~ */
- 	userlen = strlen(ud);
- 
--	if (with_shash_flg) {           /* "~/..." or "~user/..." */
--		char *sav_ud = ud - 1;
--		char *home = NULL;
--
--		if (*ud == '/') {       /* "~/..."     */
--			home = home_pwd_buf;
--		} else {
--			/* "~user/..." */
--			char *temp;
--			temp = strchr(ud, '/');
--			*temp = '\0';           /* ~user\0 */
--			entry = getpwnam(ud);
--			*temp = '/';            /* restore ~user/... */
--			ud = temp;
--			if (entry)
--				home = entry->pw_dir;
--		}
--		if (home) {
--			if ((userlen + strlen(home) + 1) < MAX_LINELEN) {
--				/* /home/user/... */
--				sprintf(sav_ud, "%s%s", home, ud);
--			}
-+	setpwent();
-+	while (!getpwent_r(&pwd, line_buff, sizeof(line_buff), &result)) {
-+		/* Null usernames should result in all users as possible completions. */
-+		if (/*!userlen || */ strncmp(ud, pwd.pw_name, userlen) == 0) {
-+			add_match(xasprintf("~%s/", pwd.pw_name));
- 		}
--	} else {
--		/* "~[^/]*" */
--		/* Using _r function to avoid pulling in static buffers */
--		char line_buff[256];
--		struct passwd pwd;
--		struct passwd *result;
--
--		setpwent();
--		while (!getpwent_r(&pwd, line_buff, sizeof(line_buff), &result)) {
--			/* Null usernames should result in all users as possible completions. */
--			if (/*!userlen || */ strncmp(ud, pwd.pw_name, userlen) == 0) {
--				add_match(xasprintf("~%s/", pwd.pw_name));
--			}
--		}
--		endpwent();
- 	}
-+	endpwent();
- }
- #endif  /* FEATURE_COMMAND_USERNAME_COMPLETION */
- 
-@@ -664,22 +669,19 @@ enum {
- 	FIND_FILE_ONLY = 2,
- };
- 
--static int path_parse(char ***p, int flags)
-+static int path_parse(char ***p)
- {
- 	int npth;
- 	const char *pth;
- 	char *tmp;
- 	char **res;
- 
--	/* if not setenv PATH variable, to search cur dir "." */
--	if (flags != FIND_EXE_ONLY)
--		return 1;
--
- 	if (state->flags & WITH_PATH_LOOKUP)
- 		pth = state->path_lookup;
- 	else
- 		pth = getenv("PATH");
--	/* PATH=<empty> or PATH=:<empty> */
-+
-+	/* PATH="" or PATH=":"? */
- 	if (!pth || !pth[0] || LONE_CHAR(pth, ':'))
- 		return 1;
- 
-@@ -689,12 +691,13 @@ static int path_parse(char ***p, int fla
- 		tmp = strchr(tmp, ':');
- 		if (!tmp)
- 			break;
--		if (*++tmp == '\0')
-+		tmp++;
-+		if (*tmp == '\0')
- 			break;  /* :<empty> */
- 		npth++;
- 	}
- 
--	res = xmalloc(npth * sizeof(char*));
-+	*p = res = xmalloc(npth * sizeof(res[0]));
- 	res[0] = tmp = xstrdup(pth);
- 	npth = 1;
- 	while (1) {
-@@ -706,100 +709,96 @@ static int path_parse(char ***p, int fla
- 			break; /* :<empty> */
- 		res[npth++] = tmp;
- 	}
--	*p = res;
- 	return npth;
- }
- 
- static void exe_n_cwd_tab_completion(char *command, int type)
- {
--	DIR *dir;
--	struct dirent *next;
--	struct stat st;
- 	char *path1[1];
- 	char **paths = path1;
- 	int npaths;
- 	int i;
--	char *found;
--	char *pfind = strrchr(command, '/');
--/*	char dirbuf[MAX_LINELEN]; */
--#define dirbuf (S.exe_n_cwd_tab_completion__dirbuf)
-+	char *pfind;
-+	char *dirbuf = NULL;
- 
- 	npaths = 1;
- 	path1[0] = (char*)".";
- 
--	if (pfind == NULL) {
--		/* no dir, if flags==EXE_ONLY - get paths, else "." */
--		npaths = path_parse(&paths, type);
-+	pfind = strrchr(command, '/');
-+	if (!pfind) {
-+		if (type == FIND_EXE_ONLY)
-+			npaths = path_parse(&paths);
- 		pfind = command;
- 	} else {
-+		/* point to 'l' in "..../last_component" */
-+		pfind++;
- 		/* dirbuf = ".../.../.../" */
--		safe_strncpy(dirbuf, command, (pfind - command) + 2);
-+		dirbuf = xstrndup(command, pfind - command);
- #if ENABLE_FEATURE_USERNAME_COMPLETION
- 		if (dirbuf[0] == '~')   /* ~/... or ~user/... */
--			username_tab_completion(dirbuf, dirbuf);
-+			dirbuf = username_path_completion(dirbuf);
- #endif
--		paths[0] = dirbuf;
--		/* point to 'l' in "..../last_component" */
--		pfind++;
-+		path1[0] = dirbuf;
- 	}
- 
- 	for (i = 0; i < npaths; i++) {
-+		DIR *dir;
-+		struct dirent *next;
-+		struct stat st;
-+		char *found;
-+
- 		dir = opendir(paths[i]);
- 		if (!dir)
- 			continue; /* don't print an error */
- 
- 		while ((next = readdir(dir)) != NULL) {
--			int len1;
--			const char *str_found = next->d_name;
-+			const char *name_found = next->d_name;
- 
--			/* matched? */
--			if (strncmp(str_found, pfind, strlen(pfind)))
-+			/* .../<tab>: bash 3.2.0 shows dotfiles, but not . and .. */
-+			if (!pfind[0] && DOT_OR_DOTDOT(name_found))
- 				continue;
--			/* not see .name without .match */
--			if (*str_found == '.' && *pfind == '\0') {
--				if (NOT_LONE_CHAR(paths[i], '/') || str_found[1])
--					continue;
--				str_found = ""; /* only "/" */
--			}
--			found = concat_path_file(paths[i], str_found);
--			/* hmm, remove in progress? */
-+			/* match? */
-+			if (strncmp(name_found, pfind, strlen(pfind)) != 0)
-+				continue; /* no */
-+
-+			found = concat_path_file(paths[i], name_found);
- 			/* NB: stat() first so that we see is it a directory;
- 			 * but if that fails, use lstat() so that
- 			 * we still match dangling links */
- 			if (stat(found, &st) && lstat(found, &st))
--				goto cont;
--			/* find with dirs? */
--			if (paths[i] != dirbuf)
--				strcpy(found, next->d_name); /* only name */
-+				goto cont; /* hmm, remove in progress? */
- 
--			len1 = strlen(found);
--			found = xrealloc(found, len1 + 2);
--			found[len1] = '\0';
--			found[len1+1] = '\0';
-+			/* save only name if we scan PATH */
-+			if (paths[i] != dirbuf)
-+				strcpy(found, name_found);
- 
- 			if (S_ISDIR(st.st_mode)) {
-+				unsigned len1 = strlen(found);
- 				/* name is a directory */
- 				if (found[len1-1] != '/') {
-+					found = xrealloc(found, len1 + 2);
- 					found[len1] = '/';
-+					found[len1 + 1] = '\0';
- 				}
- 			} else {
--				/* not put found file if search only dirs for cd */
-+				/* skip files if looking for dirs only (example: cd) */
- 				if (type == FIND_DIR_ONLY)
- 					goto cont;
- 			}
--			/* Add it to the list */
-+			/* add it to the list */
- 			add_match(found);
- 			continue;
-  cont:
- 			free(found);
- 		}
- 		closedir(dir);
--	}
-+	} /* for every path */
-+
- 	if (paths != path1) {
- 		free(paths[0]); /* allocated memory is only in first member */
- 		free(paths);
- 	}
--#undef dirbuf
-+	free(dirbuf);
- }
- 
- /* QUOT is used on elements of int_buf[], which are bytes,
-@@ -812,15 +811,20 @@ static void exe_n_cwd_tab_completion(cha
- /* is must be <= in */
- static void collapse_pos(int is, int in)
- {
--	memmove(int_buf+is, int_buf+in, (MAX_LINELEN+1-in)*sizeof(int_buf[0]));
--	memmove(pos_buf+is, pos_buf+in, (MAX_LINELEN+1-in)*sizeof(pos_buf[0]));
-+	memmove(int_buf+is, int_buf+in, (MAX_LINELEN+1-in) * sizeof(int_buf[0]));
-+	memmove(pos_buf+is, pos_buf+in, (MAX_LINELEN+1-in) * sizeof(pos_buf[0]));
- }
--static NOINLINE int find_match(char *matchBuf, int *len_with_quotes)
-+/* On entry, matchBuf contains everything up to cursor at the moment <tab>
-+ * was pressed. This function looks at it, figures out what part of it
-+ * constitutes the command/file/directory prefix to use for completion,
-+ * and rewrites matchBuf to contain only that part.
-+ */
-+static NOINLINE int build_match_prefix(char *matchBuf, int *len_with_quotes)
- {
- 	int i, j;
- 	int command_mode;
- 	int c, c2;
--/*	Were local, but it uses too much stack */
-+/*	Were local, but it used too much stack */
- /*	int16_t int_buf[MAX_LINELEN + 1]; */
- /*	int16_t pos_buf[MAX_LINELEN + 1]; */
- 
-@@ -860,22 +864,23 @@ static NOINLINE int find_match(char *mat
- 	}
- 
- 	/* skip commands with arguments if line has commands delimiters */
--	/* ';' ';;' '&' '|' '&&' '||' but `>&' `<&' `>|' */
-+	/* ';' ';;' '&' '|' '&&' '||' but '>&' '<&' '>|' */
- 	for (i = 0; int_buf[i]; i++) {
-+		int n;
- 		c = int_buf[i];
- 		c2 = int_buf[i + 1];
- 		j = i ? int_buf[i - 1] : -1;
--		command_mode = 0;
-+		n = 0;
- 		if (c == ';' || c == '&' || c == '|') {
--			command_mode = 1 + (c == c2);
-+			n = 1 + (c == c2);
- 			if (c == '&') {
- 				if (j == '>' || j == '<')
--					command_mode = 0;
-+					n = 0;
- 			} else if (c == '|' && j == '>')
--				command_mode = 0;
-+				n = 0;
- 		}
--		if (command_mode) {
--			collapse_pos(0, i + command_mode);
-+		if (n) {
-+			collapse_pos(0, i + n);
- 			i = -1;  /* hack incremet */
- 		}
- 	}
-@@ -943,8 +948,8 @@ static NOINLINE int find_match(char *mat
- 			}
- 		}
- 	}
--	for (i = 0; int_buf[i]; i++)
--		/* "strlen" */;
-+	for (i = 0; int_buf[i]; i++) /* quasi-strlen(int_buf) */
-+		continue;
- 	/* find last word */
- 	for (--i; i >= 0; i--) {
- 		c = int_buf[i];
-@@ -955,7 +960,7 @@ static NOINLINE int find_match(char *mat
- 	}
- 	/* skip first not quoted '\'' or '"' */
- 	for (i = 0; int_buf[i] == '\'' || int_buf[i] == '"'; i++)
--		/*skip*/;
-+		continue;
- 	/* collapse quote or unquote // or /~ */
- 	while ((int_buf[i] & ~QUOT) == '/'
- 	 && ((int_buf[i+1] & ~QUOT) == '/' || (int_buf[i+1] & ~QUOT) == '~')
-@@ -1058,13 +1063,20 @@ static void input_tab(smallint *lastWasT
- 
- 		/* Make a local copy of the string --
- 		 * up to the position of the cursor */
-+#if !ENABLE_UNICODE_SUPPORT
- 		save_string(matchBuf, cursor + 1);
--#if ENABLE_UNICODE_SUPPORT
--		cursor_mb = strlen(matchBuf);
-+#else
-+		{
-+			CHAR_T wc = command_ps[cursor];
-+			command_ps[cursor] = 0;
-+			save_string(matchBuf, MAX_LINELEN);
-+			command_ps[cursor] = wc;
-+			cursor_mb = strlen(matchBuf);
-+		}
- #endif
- 		tmp = matchBuf;
- 
--		find_type = find_match(matchBuf, &recalc_pos);
-+		find_type = build_match_prefix(matchBuf, &recalc_pos);
- 
- 		/* Free up any memory already allocated */
- 		free_tab_completion_data();
-@@ -1074,7 +1086,7 @@ static void input_tab(smallint *lastWasT
- 		 * then try completing this word as a username. */
- 		if (state->flags & USERNAME_COMPLETION)
- 			if (matchBuf[0] == '~' && strchr(matchBuf, '/') == NULL)
--				username_tab_completion(matchBuf, NULL);
-+				username_completion(matchBuf);
- #endif
- 		/* Try to match any executable in our path and everything
- 		 * in the current working directory */
-@@ -1083,7 +1095,7 @@ static void input_tab(smallint *lastWasT
- 		/* Sort, then remove any duplicates found */
- 		if (matches) {
- 			unsigned i;
--			int n = 0;
-+			unsigned n = 0;
- 			qsort_string_vector(matches, num_matches);
- 			for (i = 0; i < num_matches - 1; ++i) {
- 				if (matches[i] && matches[i+1]) { /* paranoia */
-@@ -1095,14 +1107,14 @@ static void input_tab(smallint *lastWasT
- 					}
- 				}
- 			}
--			matches[n] = matches[i];
--			num_matches = n + 1;
-+			matches[n++] = matches[i];
-+			num_matches = n;
- 		}
- 		/* Did we find exactly one match? */
--		if (!matches || num_matches > 1) { /* no */
-+		if (num_matches != 1) { /* no */
- 			beep();
- 			if (!matches)
--				return;         /* not found */
-+				return; /* no matches at all */
- 			/* find minimal match */
- 			tmp1 = xstrdup(matches[0]);
- 			for (tmp = tmp1; *tmp; tmp++) {
-@@ -1113,13 +1125,14 @@ static void input_tab(smallint *lastWasT
- 					}
- 				}
- 			}
--			if (*tmp1 == '\0') {        /* have unique */
--				free(tmp1);
-+			if (*tmp1 == '\0') { /* have unique pfx? */
-+				free(tmp1); /* no */
- 				return;
- 			}
- 			tmp = add_quote_for_spec_chars(tmp1);
- 			free(tmp1);
--		} else {                        /* one match */
-+			len_found = strlen(tmp);
-+		} else {                        /* exactly one match */
- 			tmp = add_quote_for_spec_chars(matches[0]);
- 			/* for next completion current found */
- 			*lastWasTab = FALSE;
-@@ -1127,11 +1140,10 @@ static void input_tab(smallint *lastWasT
- 			len_found = strlen(tmp);
- 			if (tmp[len_found-1] != '/') {
- 				tmp[len_found] = ' ';
--				tmp[len_found+1] = '\0';
-+				tmp[++len_found] = '\0';
- 			}
- 		}
- 
--		len_found = strlen(tmp);
- #if !ENABLE_UNICODE_SUPPORT
- 		/* have space to place the match? */
- 		/* The result consists of three parts with these lengths: */
-@@ -1164,7 +1176,10 @@ static void input_tab(smallint *lastWasT
- 				sprintf(&command[cursor_mb - recalc_pos], "%s%s", tmp, matchBuf);
- 				command_len = load_string(command, S.maxsize);
- 				/* write out the matched command */
--				redraw(cmdedit_y, command_len - len);
-+				/* paranoia: load_string can return 0 on conv error,
-+				 * prevent passing len = (0 - 12) to redraw */
-+				len = command_len - len;
-+				redraw(cmdedit_y, len >= 0 ? len : 0);
- 			}
- 		}
- #endif
---- a/libbb/unicode.c
-+++ b/libbb/unicode.c
-@@ -131,7 +131,7 @@ size_t FAST_FUNC wcstombs(char *dest, co
- 		size_t len = wcrtomb_internal(tbuf, wc);
- 
- 		if (len > n)
--			len = n;
-+			break;
- 		memcpy(dest, tbuf, len);
- 		if (wc == L'\0')
- 			return org_n - n;