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authorDenys Vlasenko <vda.linux@googlemail.com>2011-03-23 16:59:27 (GMT)
committer Denys Vlasenko <vda.linux@googlemail.com>2011-03-23 16:59:27 (GMT)
commit20704f066250744c0c2b84920c27d0fd0aa9e935 (patch)
tree8a76e56e4be0beb84dbe993922d4be86ab694350
parent7f4b769c42f3773ff2e2e749547291dcb7e85d01 (diff)
downloadbusybox-20704f066250744c0c2b84920c27d0fd0aa9e935.tar.gz
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ash,hush: recheck LANG before every line input
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
-rw-r--r--include/unicode.h4
-rw-r--r--libbb/unicode.c28
-rw-r--r--shell/ash.c23
-rw-r--r--shell/hush.c25
4 files changed, 52 insertions, 28 deletions
diff --git a/include/unicode.h b/include/unicode.h
index dee02e7..0317a21 100644
--- a/include/unicode.h
+++ b/include/unicode.h
@@ -27,6 +27,7 @@ enum {
# define unicode_strwidth(string) strlen(string)
# define unicode_status UNICODE_OFF
# define init_unicode() ((void)0)
+# define reinit_unicode(LANG) ((void)0)
#else
@@ -67,6 +68,7 @@ char* FAST_FUNC unicode_conv_to_printable_fixedwidth(/*uni_stat_t *stats,*/ cons
extern uint8_t unicode_status;
void init_unicode(void) FAST_FUNC;
+void reinit_unicode(const char *LANG) FAST_FUNC;
# else
@@ -75,9 +77,11 @@ void init_unicode(void) FAST_FUNC;
# if !ENABLE_FEATURE_CHECK_UNICODE_IN_ENV
# define unicode_status UNICODE_ON
# define init_unicode() ((void)0)
+# define reinit_unicode(LANG) ((void)0)
# else
extern uint8_t unicode_status;
void init_unicode(void) FAST_FUNC;
+void reinit_unicode(const char *LANG) FAST_FUNC;
# endif
# undef MB_CUR_MAX
diff --git a/libbb/unicode.c b/libbb/unicode.c
index 08a4c74..d01efd9 100644
--- a/libbb/unicode.c
+++ b/libbb/unicode.c
@@ -23,37 +23,43 @@ uint8_t unicode_status;
/* Unicode support using libc locale support. */
-void FAST_FUNC init_unicode(void)
+void FAST_FUNC reinit_unicode(const char *LANG UNUSED_PARAM)
{
static const char unicode_0x394[] = { 0xce, 0x94, 0 };
size_t width;
- if (unicode_status != UNICODE_UNKNOWN)
- return;
+//TODO: call setlocale(LC_ALL, LANG) here?
+
/* In unicode, this is a one character string */
// can use unicode_strlen(string) too, but otherwise unicode_strlen() is unused
width = mbstowcs(NULL, unicode_0x394, INT_MAX);
unicode_status = (width == 1 ? UNICODE_ON : UNICODE_OFF);
}
+void FAST_FUNC init_unicode(void)
+{
+ if (unicode_status == UNICODE_UNKNOWN)
+ reinit_unicode(NULL /*getenv("LANG")*/);
+}
+
#else
/* Homegrown Unicode support. It knows only C and Unicode locales. */
# if ENABLE_FEATURE_CHECK_UNICODE_IN_ENV
-void FAST_FUNC init_unicode(void)
+void FAST_FUNC reinit_unicode(const char *LANG)
{
- char *lang;
-
- if (unicode_status != UNICODE_UNKNOWN)
- return;
-
unicode_status = UNICODE_OFF;
- lang = getenv("LANG");
- if (!lang || !(strstr(lang, ".utf") || strstr(lang, ".UTF")))
+ if (!LANG || !(strstr(LANG, ".utf") || strstr(LANG, ".UTF")))
return;
unicode_status = UNICODE_ON;
}
+
+void FAST_FUNC init_unicode(void)
+{
+ if (unicode_status == UNICODE_UNKNOWN)
+ reinit_unicode(getenv("LANG"));
+}
# endif
static size_t wcrtomb_internal(char *s, wchar_t wc)
diff --git a/shell/ash.c b/shell/ash.c
index 0baf7c8..1520c5a 100644
--- a/shell/ash.c
+++ b/shell/ash.c
@@ -36,12 +36,14 @@
#define JOBS ENABLE_ASH_JOB_CONTROL
-#include "busybox.h" /* for applet_names */
#include <paths.h>
#include <setjmp.h>
#include <fnmatch.h>
#include <sys/times.h>
+#include "busybox.h" /* for applet_names */
+#include "unicode.h"
+
#include "shell_common.h"
#if ENABLE_SH_MATH_SUPPORT
# include "math.h"
@@ -72,13 +74,6 @@
# error "Do not even bother, ash will not run on NOMMU machine"
#endif
-//applet:IF_ASH(APPLET(ash, BB_DIR_BIN, BB_SUID_DROP))
-//applet:IF_FEATURE_SH_IS_ASH(APPLET_ODDNAME(sh, ash, BB_DIR_BIN, BB_SUID_DROP, sh))
-//applet:IF_FEATURE_BASH_IS_ASH(APPLET_ODDNAME(bash, ash, BB_DIR_BIN, BB_SUID_DROP, bash))
-
-//kbuild:lib-$(CONFIG_ASH) += ash.o ash_ptr_hack.o shell_common.o
-//kbuild:lib-$(CONFIG_ASH_RANDOM_SUPPORT) += random.o
-
//config:config ASH
//config: bool "ash"
//config: default y
@@ -190,6 +185,13 @@
//config: variable each time it is displayed.
//config:
+//applet:IF_ASH(APPLET(ash, BB_DIR_BIN, BB_SUID_DROP))
+//applet:IF_FEATURE_SH_IS_ASH(APPLET_ODDNAME(sh, ash, BB_DIR_BIN, BB_SUID_DROP, sh))
+//applet:IF_FEATURE_BASH_IS_ASH(APPLET_ODDNAME(bash, ash, BB_DIR_BIN, BB_SUID_DROP, bash))
+
+//kbuild:lib-$(CONFIG_ASH) += ash.o ash_ptr_hack.o shell_common.o
+//kbuild:lib-$(CONFIG_ASH_RANDOM_SUPPORT) += random.o
+
/* ============ Hash table sizes. Configurable. */
@@ -9626,6 +9628,11 @@ preadfd(void)
# if ENABLE_FEATURE_TAB_COMPLETION
line_input_state->path_lookup = pathval();
# endif
+ /* Unicode support should be activated even if LANG is set
+ * _during_ shell execution, not only if it was set when
+ * shell was started. Therefore, re-check LANG every time:
+ */
+ reinit_unicode(lookupvar("LANG"));
nr = read_line_input(line_input_state, cmdedit_prompt, buf, IBUFSIZ, timeout);
if (nr == 0) {
/* Ctrl+C pressed */
diff --git a/shell/hush.c b/shell/hush.c
index 64d5e85..339f334 100644
--- a/shell/hush.c
+++ b/shell/hush.c
@@ -81,7 +81,6 @@
* $ "export" i=`echo 'aaa bbb'`; echo "$i"
* aaa
*/
-#include "busybox.h" /* for APPLET_IS_NOFORK/NOEXEC */
#if !(defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__NetBSD__) \
|| defined(__APPLE__) \
)
@@ -93,6 +92,8 @@
# include <fnmatch.h>
#endif
+#include "busybox.h" /* for APPLET_IS_NOFORK/NOEXEC */
+#include "unicode.h"
#include "shell_common.h"
#include "math.h"
#include "match.h"
@@ -105,14 +106,6 @@
# define PIPE_BUF 4096 /* amount of buffering in a pipe */
#endif
-//applet:IF_HUSH(APPLET(hush, BB_DIR_BIN, BB_SUID_DROP))
-//applet:IF_MSH(APPLET(msh, BB_DIR_BIN, BB_SUID_DROP))
-//applet:IF_FEATURE_SH_IS_HUSH(APPLET_ODDNAME(sh, hush, BB_DIR_BIN, BB_SUID_DROP, sh))
-//applet:IF_FEATURE_BASH_IS_HUSH(APPLET_ODDNAME(bash, hush, BB_DIR_BIN, BB_SUID_DROP, bash))
-
-//kbuild:lib-$(CONFIG_HUSH) += hush.o match.o shell_common.o
-//kbuild:lib-$(CONFIG_HUSH_RANDOM_SUPPORT) += random.o
-
//config:config HUSH
//config: bool "hush"
//config: default y
@@ -249,6 +242,14 @@
//config: msh is deprecated and will be removed, please migrate to hush.
//config:
+//applet:IF_HUSH(APPLET(hush, BB_DIR_BIN, BB_SUID_DROP))
+//applet:IF_MSH(APPLET(msh, BB_DIR_BIN, BB_SUID_DROP))
+//applet:IF_FEATURE_SH_IS_HUSH(APPLET_ODDNAME(sh, hush, BB_DIR_BIN, BB_SUID_DROP, sh))
+//applet:IF_FEATURE_BASH_IS_HUSH(APPLET_ODDNAME(bash, hush, BB_DIR_BIN, BB_SUID_DROP, bash))
+
+//kbuild:lib-$(CONFIG_HUSH) += hush.o match.o shell_common.o
+//kbuild:lib-$(CONFIG_HUSH_RANDOM_SUPPORT) += random.o
+
/* -i (interactive) and -s (read stdin) are also accepted,
* but currently do nothing, therefore aren't shown in help.
* NOMMU-specific options are not meant to be used by users,
@@ -1906,6 +1907,12 @@ static void get_user_input(struct in_str *i)
/* Enable command line editing only while a command line
* is actually being read */
do {
+ /* Unicode support should be activated even if LANG is set
+ * _during_ shell execution, not only if it was set when
+ * shell was started. Therefore, re-check LANG every time:
+ */
+ reinit_unicode(get_local_var_value("LANG"));
+
G.flag_SIGINT = 0;
/* buglet: SIGINT will not make new prompt to appear _at once_,
* only after <Enter>. (^C will work) */