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glibc/SOURCES/glibc-rh1701605-1.patch

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commit e485b2b6e006a7efa5d73e6be7e357a395c77fe3
Author: Florian Weimer <fweimer@redhat.com>
Date: Tue Apr 23 18:16:26 2019 +0200
locale: Add LOCPATH diagnostics to the locale program
The implementation of quote_string is based on support_quote_blob.
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
diff --git a/locale/Makefile b/locale/Makefile
index fd9972279ba7fe0b..42bb36c7d374eebe 100644
--- a/locale/Makefile
+++ b/locale/Makefile
@@ -28,6 +28,7 @@ routines = setlocale findlocale loadlocale loadarchive \
localeconv nl_langinfo nl_langinfo_l mb_cur_max \
newlocale duplocale freelocale uselocale
tests = tst-C-locale tst-locname tst-duplocale
+tests-special = $(objpfx)tst-locale-locpath.out
categories = ctype messages monetary numeric time paper name \
address telephone measurement identification collate
aux = $(categories:%=lc-%) $(categories:%=C-%) SYS_libc C_name \
@@ -104,3 +105,7 @@ cpp-srcs-left := $(localedef-modules) $(localedef-aux) $(locale-modules) \
$(lib-modules)
lib := locale-programs
include $(patsubst %,$(..)libof-iterator.mk,$(cpp-srcs-left))
+
+$(objpfx)tst-locale-locpath.out : tst-locale-locpath.sh $(objpfx)locale
+ $(SHELL) $< '$(common-objpfx)' '$(test-wrapper)' '$(test-wrapper-env)' > $@; \
+ $(evaluate-test)
diff --git a/locale/programs/locale.c b/locale/programs/locale.c
index 86941e4ef6e67d78..0e2e3e4e5788246f 100644
--- a/locale/programs/locale.c
+++ b/locale/programs/locale.c
@@ -173,6 +173,9 @@ static int write_archive_locales (void **all_datap, char *linebuf);
static void write_charmaps (void);
static void show_locale_vars (void);
static void show_info (const char *name);
+static void try_setlocale (int category, const char *category_name);
+static char *quote_string (const char *input);
+static void setlocale_diagnostics (void);
int
@@ -186,10 +189,8 @@ main (int argc, char *argv[])
/* Set locale. Do not set LC_ALL because the other categories must
not be affected (according to POSIX.2). */
- if (setlocale (LC_CTYPE, "") == NULL)
- error (0, errno, gettext ("Cannot set LC_CTYPE to default locale"));
- if (setlocale (LC_MESSAGES, "") == NULL)
- error (0, errno, gettext ("Cannot set LC_MESSAGES to default locale"));
+ try_setlocale (LC_CTYPE, "LC_CTYPE");
+ try_setlocale (LC_MESSAGES, "LC_MESSAGES");
/* Initialize the message catalog. */
textdomain (PACKAGE);
@@ -200,9 +201,8 @@ main (int argc, char *argv[])
/* `-a' requests the names of all available locales. */
if (do_all != 0)
{
- if (setlocale (LC_COLLATE, "") == NULL)
- error (0, errno,
- gettext ("Cannot set LC_COLLATE to default locale"));
+ setlocale_diagnostics ();
+ try_setlocale (LC_COLLATE, "LC_COLLATE");
write_locales ();
exit (EXIT_SUCCESS);
}
@@ -211,14 +211,15 @@ main (int argc, char *argv[])
used for the -f argument to localedef(1). */
if (do_charmaps != 0)
{
+ setlocale_diagnostics ();
write_charmaps ();
exit (EXIT_SUCCESS);
}
/* Specific information about the current locale are requested.
Change to this locale now. */
- if (setlocale (LC_ALL, "") == NULL)
- error (0, errno, gettext ("Cannot set LC_ALL to default locale"));
+ try_setlocale (LC_ALL, "LC_ALL");
+ setlocale_diagnostics ();
/* If no real argument is given we have to print the contents of the
current locale definition variables. These are LANG and the LC_*. */
@@ -983,3 +984,121 @@ show_info (const char *name)
For testing and perhaps advanced use allow some more symbols. */
locale_special (name, show_category_name, show_keyword_name);
}
+
+/* Set to true by try_setlocale if setlocale fails. Used by
+ setlocale_diagnostics. */
+static bool setlocale_failed;
+
+/* Call setlocale, with non-fatal error reporting. */
+static void
+try_setlocale (int category, const char *category_name)
+{
+ if (setlocale (category, "") == NULL)
+ {
+ error (0, errno, gettext ("Cannot set %s to default locale"),
+ category_name);
+ setlocale_failed = true;
+ }
+}
+
+/* Return a quoted version of the passed string, or NULL on error. */
+static char *
+quote_string (const char *input)
+{
+ char *buffer;
+ size_t length;
+ FILE *stream = open_memstream (&buffer, &length);
+ if (stream == NULL)
+ return NULL;
+
+ while (true)
+ {
+ unsigned char ch = *input++;
+ if (ch == '\0')
+ break;
+
+ /* Use C backslash escapes for those control characters for
+ which they are defined. */
+ switch (ch)
+ {
+ case '\a':
+ putc_unlocked ('\\', stream);
+ putc_unlocked ('a', stream);
+ break;
+ case '\b':
+ putc_unlocked ('\\', stream);
+ putc_unlocked ('b', stream);
+ break;
+ case '\f':
+ putc_unlocked ('\\', stream);
+ putc_unlocked ('f', stream);
+ break;
+ case '\n':
+ putc_unlocked ('\\', stream);
+ putc_unlocked ('n', stream);
+ break;
+ case '\r':
+ putc_unlocked ('\\', stream);
+ putc_unlocked ('r', stream);
+ break;
+ case '\t':
+ putc_unlocked ('\\', stream);
+ putc_unlocked ('t', stream);
+ break;
+ case '\v':
+ putc_unlocked ('\\', stream);
+ putc_unlocked ('v', stream);
+ break;
+ case '\\':
+ case '\'':
+ case '\"':
+ putc_unlocked ('\\', stream);
+ putc_unlocked (ch, stream);
+ break;
+ default:
+ if (ch < ' ' || ch > '~')
+ /* Use octal sequences because they are fixed width,
+ unlike hexadecimal sequences. */
+ fprintf (stream, "\\%03o", ch);
+ else
+ putc_unlocked (ch, stream);
+ }
+ }
+
+ if (ferror (stream))
+ {
+ fclose (stream);
+ free (buffer);
+ return NULL;
+ }
+ if (fclose (stream) != 0)
+ {
+ free (buffer);
+ return NULL;
+ }
+
+ return buffer;
+}
+
+/* Print additional information if there was a setlocale error (during
+ try_setlocale). */
+static void
+setlocale_diagnostics (void)
+{
+ if (setlocale_failed)
+ {
+ const char *locpath = getenv ("LOCPATH");
+ if (locpath != NULL)
+ {
+ char *quoted = quote_string (locpath);
+ if (quoted != NULL)
+ fprintf (stderr,
+ gettext ("\
+warning: The LOCPATH variable is set to \"%s\"\n"),
+ quoted);
+ else
+ fputs ("warning: The LOCPATH variable is set\n", stderr);
+ free (quoted);
+ }
+ }
+}
diff --git a/locale/tst-locale-locpath.sh b/locale/tst-locale-locpath.sh
new file mode 100644
index 0000000000000000..b83de90a39121af6
--- /dev/null
+++ b/locale/tst-locale-locpath.sh
@@ -0,0 +1,83 @@
+#!/bin/sh
+# Test that locale prints LOCPATH on failure.
+# Copyright (C) 2019 Free Software Foundation, Inc.
+# This file is part of the GNU C Library.
+
+# The GNU C Library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+
+# The GNU C Library 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
+# Lesser General Public License for more details.
+
+# You should have received a copy of the GNU Lesser General Public
+# License along with the GNU C Library; if not, see
+# <http://www.gnu.org/licenses/>.
+
+set -ex
+
+common_objpfx=$1
+test_wrapper_env=$2
+run_program_env=$3
+
+LIBPATH="$common_objpfx"
+
+testroot="${common_objpfx}locale/tst-locale-locpath-directory"
+cleanup () {
+ rm -rf "$testroot"
+}
+trap cleanup 0
+
+rm -rf "$testroot"
+mkdir -p $testroot
+
+unset LANG
+
+${test_wrapper_env} \
+${run_program_env} LC_ALL=invalid-locale LOCPATH=does-not-exist \
+${common_objpfx}elf/ld.so --library-path "$LIBPATH" \
+ "${common_objpfx}locale/locale" \
+ > "$testroot/stdout" 2> "$testroot/stderr"
+
+echo "* standard error"
+cat "$testroot/stderr"
+echo "* standard output"
+cat "$testroot/stdout"
+
+cat > "$testroot/stderr-expected" <<EOF
+${common_objpfx}locale/locale: Cannot set LC_CTYPE to default locale: No such file or directory
+${common_objpfx}locale/locale: Cannot set LC_MESSAGES to default locale: No such file or directory
+${common_objpfx}locale/locale: Cannot set LC_ALL to default locale: No such file or directory
+warning: The LOCPATH variable is set to "does-not-exist"
+EOF
+
+cat > "$testroot/stdout-expected" <<EOF
+LANG=
+LC_CTYPE="invalid-locale"
+LC_NUMERIC="invalid-locale"
+LC_TIME="invalid-locale"
+LC_COLLATE="invalid-locale"
+LC_MONETARY="invalid-locale"
+LC_MESSAGES="invalid-locale"
+LC_PAPER="invalid-locale"
+LC_NAME="invalid-locale"
+LC_ADDRESS="invalid-locale"
+LC_TELEPHONE="invalid-locale"
+LC_MEASUREMENT="invalid-locale"
+LC_IDENTIFICATION="invalid-locale"
+LC_ALL=invalid-locale
+EOF
+
+errors=0
+if ! cmp -s "$testroot/stderr-expected" "$testroot/stderr" ; then
+ echo "error: standard error not correct"
+ errors=1
+fi
+if ! cmp -s "$testroot/stdout-expected" "$testroot/stdout" ; then
+ echo "error: standard output not correct"
+ errors=1
+fi
+exit $errors
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