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2000-01-23  Paul Eggert  <eggert@twinsun.com>

	* posix/regex.c (GET_UNSIGNED_NUMBER): Allow only ASCII digits.

2000-01-23  Paul Eggert  <eggert@twinsun.com>

	* posix/regex.c (compile_range): When matching a character
	range, use the current collating sequence, as POSIX requires.
This commit is contained in:
Ulrich Drepper 2000-01-26 02:07:07 +00:00
parent f00ebd7f81
commit 14a6b4e45f
3 changed files with 65 additions and 52 deletions
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9
ChangeLog
View File

@ -1,3 +1,12 @@
2000-01-23 Paul Eggert <eggert@twinsun.com>
* posix/regex.c (GET_UNSIGNED_NUMBER): Allow only ASCII digits.
2000-01-23 Paul Eggert <eggert@twinsun.com>
* posix/regex.c (compile_range): When matching a character
range, use the current collating sequence, as POSIX requires.
2000-01-25 Ulrich Drepper <drepper@cygnus.com>
* string/argz-stringify.c: Handle case of missing \0 at the end of

54
FAQ.in
View File

@ -721,7 +721,7 @@ necessary conversion and calls to create those files. The file is
`db-Makefile' in the subdirectory `nss' and you can call it with `make -f
db-Makefile'. Please note that not all services are capable of using a
database. Currently passwd, group, ethers, protocol, rpc, services shadow
and netgroup are implemented.
and netgroup are implemented. See also question ?nssdb.
?? I have /usr/include/net and /usr/include/scsi as symlinks
into my Linux source tree. Is that wrong?
@ -955,6 +955,30 @@ installed by glibc 2.1 in your include directory.
{AJ} See ?libs.
??nssdb What happened to the Berkeley DB libraries? Can I still use db
in /etc/nsswitch.conf?
{AJ} Due to too many incompatible changes in disk layout and API of Berkeley
DB and a too tight coupling of libc and libdb, the db library has been
removed completely from glibc 2.2. The only place that really used the
Berkeley DB was the NSS db module.
The NSS db module has been rewritten to support a number of different
versions of Berkeley DB for the NSS db module. Currently the releases 2.x
and 3.x of Berkeley DB are supported. The older db 1.85 library is not
supported. You can use the version from glibc 2.1.x or download a version
from Sleepycat Software (http://www.sleepycat.com). The library has to be
compiled as shared library and installed in the system lib directory
(normally /lib). The library needs to have a special soname to be found by
the NSS module.
If public structures change in a new Berkeley db release, this needs to be
reflected in glibc.
Currently the code searches for libraries with a soname of "libdb.so.3"
(that's the name from db 2.4.14 which comes with glibc 2.1.x) and
"libdb-3.0.so" (the name used by db 3.0.55 as default).
? Source and binary incompatibilities, and what to do about them
@ -1245,15 +1269,6 @@ e.g. __ivaliduser). If a program uses these interfaces, it's broken. These
internal interfaces might change between glibc releases or dropped
completely.
?? When using the db-2 library which comes with glibc is used in
the Perl db modules the testsuite is not passed. This did not
happen with db-1, gdbm, or ndbm.
{MK} Db-2 does not support zero-sized keys. The Perl testsuite
tests the support for zero-sized keys and therefore fails when db-2 is
used. The Perl folks are looking for a solution, but thus far have
not found a satisfactory one.
?? The pow() inline function I get when including <math.h> is broken.
I get segmentation faults when I run the program.
@ -1341,21 +1356,6 @@ suffix `_unlocked', for details check <stdio.h>. Using `putc_unlocked' etc.
instead of `putc' should give nearly the same speed with bonnie (bonnie is a
benchmark program for measuring disk access).
?? Programs compiled with glibc 2.1 can't read db files made with glibc
2.0. What has changed that programs like rpm break?
{AJ} The GNU C library 2.1 uses db2 instead of db1 which was used in version
2.0. The internal formats of the actual db files are different. To convert
the db files from db1 format to db2 format, you can use the programs
`db_dump185' and `db_load'. Alternativly programs can be linked with db1
using `-ldb1' instead of linking with db2 which uses `-ldb'. Linking with
db1 might be preferable if older programs need to access the db file.
db2 supports the old db1 programming interface and also a new programming
interface. For compilation with the old API, <db_185.h> has to be included
(and not <db.h>) and you can link with either `-ldb1' or `-ldb' for either
of the db formats.
?? Autoconf's AC_CHECK_FUNC macro reports that a function exists, but
when I try to use it, it always returns -1 and sets errno to ENOSYS.
@ -1443,7 +1443,7 @@ reading the POSIX standards.
<http://www.gnu.org/software/libc/>. The problem data base of open and
solved bugs in GNU libc is available at
<http://www-gnats.gnu.org:8080/cgi-bin/wwwgnats.pl>. Eric Green has written
a HowTo for converting from Linux libc5 to glibc2. The HowTo is accessable
a HowTo for converting from Linux libc5 to glibc2. The HowTo is accessible
via the FSF page and at <http://www.imaxx.net/~thrytis/glibc>. Frodo
Looijaard describes a different way installing glibc2 as secondary libc at
<http://huizen.dds.nl/~frodol/glibc>.
@ -1516,7 +1516,7 @@ Answers were given by:
{UD} Ulrich Drepper, <drepper@cygnus.com>
{DMT} David Mosberger-Tang, <davidm@AZStarNet.com>
{RM} Roland McGrath, <roland@gnu.org>
{AJ} Andreas Jaeger, <aj@arthur.rhein-neckar.de>
{AJ} Andreas Jaeger, <aj@suse.de>
{EY} Eric Youngdale, <eric@andante.jic.com>
{PB} Phil Blundell, <Philip.Blundell@pobox.com>
{MK} Mark Kettenis, <kettenis@phys.uva.nl>

54
posix/regex.c
View File

@ -1769,7 +1769,7 @@ typedef struct
{ if (p != pend) \
{ \
PATFETCH (c); \
while (ISDIGIT (c)) \
while ('0' <= c && c <= '9') \
{ \
if (num < 0) \
num = 0; \
@ -3423,49 +3423,53 @@ group_in_compile_stack (compile_stack, regnum)
`regex_compile' itself. */
static reg_errcode_t
compile_range (range_start, p_ptr, pend, translate, syntax, b)
unsigned int range_start;
const char **p_ptr, *pend;
RE_TRANSLATE_TYPE translate;
reg_syntax_t syntax;
unsigned char *b;
compile_range (range_start_char, p_ptr, pend, translate, syntax, b)
unsigned int range_start_char;
const char **p_ptr, *pend;
RE_TRANSLATE_TYPE translate;
reg_syntax_t syntax;
unsigned char *b;
{
unsigned this_char;
const char *p = *p_ptr;
unsigned int range_end;
reg_errcode_t ret;
char range_start[2];
char range_end[2];
char ch[2];
if (p == pend)
return REG_ERANGE;
/* Even though the pattern is a signed `char *', we need to fetch
with unsigned char *'s; if the high bit of the pattern character
is set, the range endpoints will be negative if we fetch using a
signed char *.
We also want to fetch the endpoints without translating them; the
/* Fetch the endpoints without translating them; the
appropriate translation is done in the bit-setting loop below. */
/* The SVR4 compiler on the 3B2 had trouble with unsigned const char *. */
range_end = ((const unsigned char *) p)[0];
range_start[0] = range_start_char;
range_start[1] = '\0';
range_end[0] = p[0];
range_end[1] = '\0';
/* Have to increment the pointer into the pattern string, so the
caller isn't still at the ending character. */
(*p_ptr)++;
/* If the start is after the end, the range is empty. */
if (range_start > range_end)
return syntax & RE_NO_EMPTY_RANGES ? REG_ERANGE : REG_NOERROR;
/* Report an error if the range is empty and the syntax prohibits this. */
ret = syntax & RE_NO_EMPTY_RANGES ? REG_ERANGE : REG_NOERROR;
/* Here we see why `this_char' has to be larger than an `unsigned
char' -- the range is inclusive, so if `range_end' == 0xff
(assuming 8-bit characters), we would otherwise go into an infinite
loop, since all characters <= 0xff. */
for (this_char = range_start; this_char <= range_end; this_char++)
char' -- we would otherwise go into an infinite loop, since all
characters <= 0xff. */
ch[1] = '\0';
for (this_char = 0; this_char <= (unsigned char) -1; ++this_char)
{
SET_LIST_BIT (TRANSLATE (this_char));
ch[0] = this_char;
if (strcoll (range_start, ch) <= 0 && strcoll (ch, range_end) <= 0)
{
SET_LIST_BIT (TRANSLATE (this_char));
ret = REG_NOERROR;
}
}
return REG_NOERROR;
return ret;
}
/* re_compile_fastmap computes a ``fastmap'' for the compiled pattern in