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glibc/posix/confstr.c
Paul Eggert 5a82c74822 Prefer https to http for gnu.org and fsf.org URLs 
Also, change sources.redhat.com to sourceware.org.
This patch was automatically generated by running the following shell
script, which uses GNU sed, and which avoids modifying files imported
from upstream:

sed -ri '
  s,(http|ftp)(://(.*\.)?(gnu|fsf|sourceware)\.org($|[^.]|\.[^a-z])),https\2,g
  s,(http|ftp)(://(.*\.)?)sources\.redhat\.com($|[^.]|\.[^a-z]),https\2sourceware.org\4,g
' \
  $(find $(git ls-files) -prune -type f \
      ! -name '*.po' \
      ! -name 'ChangeLog*' \
      ! -path COPYING ! -path COPYING.LIB \
      ! -path manual/fdl-1.3.texi ! -path manual/lgpl-2.1.texi \
      ! -path manual/texinfo.tex ! -path scripts/config.guess \
      ! -path scripts/config.sub ! -path scripts/install-sh \
      ! -path scripts/mkinstalldirs ! -path scripts/move-if-change \
      ! -path INSTALL ! -path  locale/programs/charmap-kw.h \
      ! -path po/libc.pot ! -path sysdeps/gnu/errlist.c \
      ! '(' -name configure \
            -execdir test -f configure.ac -o -f configure.in ';' ')' \
      ! '(' -name preconfigure \
            -execdir test -f preconfigure.ac ';' ')' \
      -print)

and then by running 'make dist-prepare' to regenerate files built
from the altered files, and then executing the following to cleanup:

  chmod a+x sysdeps/unix/sysv/linux/riscv/configure
  # Omit irrelevant whitespace and comment-only changes,
  # perhaps from a slightly-different Autoconf version.
  git checkout -f \
    sysdeps/csky/configure \
    sysdeps/hppa/configure \
    sysdeps/riscv/configure \
    sysdeps/unix/sysv/linux/csky/configure
  # Omit changes that caused a pre-commit check to fail like this:
  # remote: *** error: sysdeps/powerpc/powerpc64/ppc-mcount.S: trailing lines
  git checkout -f \
    sysdeps/powerpc/powerpc64/ppc-mcount.S \
    sysdeps/unix/sysv/linux/s390/s390-64/syscall.S
  # Omit change that caused a pre-commit check to fail like this:
  # remote: *** error: sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S: last line does not end in newline
  git checkout -f sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S
2019-09-07 02:43:31 -07:00

295 lines
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/* Copyright (C) 1991-2019 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
<https://www.gnu.org/licenses/>. */
#include <stddef.h>
#include <errno.h>
#include <unistd.h>
#include <string.h>
#include <confstr.h>
#include "../version.h"
#define NEED_SPEC_ARRAY 0
#include <posix-conf-vars.h>
/* If BUF is not NULL and LEN > 0, fill in at most LEN - 1 bytes
of BUF with the value corresponding to NAME and zero-terminate BUF.
Return the number of bytes required to hold NAME's entire value. */
size_t
__confstr (int name, char *buf, size_t len)
{
const char *string = "";
size_t string_len = 1;
/* Note that this buffer must be large enough for the longest strings
used below. */
char restenvs[4 * sizeof "POSIX_V7_LPBIG_OFFBIG"];
switch (name)
{
case _CS_PATH:
{
static const char cs_path[] = CS_PATH;
string = cs_path;
string_len = sizeof (cs_path);
}
break;
/* For _CS_V7_WIDTH_RESTRICTED_ENVS, _CS_V6_WIDTH_RESTRICTED_ENVS
and _CS_V5_WIDTH_RESTRICTED_ENVS:
We have to return a newline-separated list of names of
programming environments in which the widths of blksize_t,
cc_t, mode_t, nfds_t, pid_t, ptrdiff_t, size_t, speed_t,
ssize_t, suseconds_t, tcflag_t, useconds_t, wchar_t, and
wint_t types are no greater than the width of type long.
Currently this means all environments that the system allows. */
#define START_ENV_GROUP(VERSION) \
case _CS_##VERSION##_WIDTH_RESTRICTED_ENVS: \
string_len = 0;
#define END_ENV_GROUP(VERSION) \
restenvs[string_len++] = '\0'; \
string = restenvs; \
break;
#define KNOWN_ABSENT_ENVIRONMENT(SC_PREFIX, ENV_PREFIX, SUFFIX) \
/* Empty. */
#define KNOWN_PRESENT_ENV_STRING(STR) \
if (string_len > 0) \
restenvs[string_len++] = '\n'; \
memcpy (restenvs + string_len, STR, \
sizeof STR - 1); \
string_len += sizeof STR - 1;
#define KNOWN_PRESENT_ENVIRONMENT(SC_PREFIX, ENV_PREFIX, SUFFIX) \
KNOWN_PRESENT_ENV_STRING (#ENV_PREFIX "_" #SUFFIX)
#define UNKNOWN_ENVIRONMENT(SC_PREFIX, ENV_PREFIX, SUFFIX) \
if (__sysconf (_SC_##SC_PREFIX##_##SUFFIX) > 0) \
{ \
KNOWN_PRESENT_ENVIRONMENT (SC_PREFIX, ENV_PREFIX, SUFFIX) \
}
#include "posix-envs.def"
#undef START_ENV_GROUP
#undef END_ENV_GROUP
#undef KNOWN_ABSENT_ENVIRONMENT
#undef KNOWN_PRESENT_ENV_STRING
#undef KNOWN_PRESENT_ENVIRONMENT
#undef UNKNOWN_ENVIRONMENT
case _CS_XBS5_ILP32_OFF32_CFLAGS:
case _CS_POSIX_V6_ILP32_OFF32_CFLAGS:
case _CS_POSIX_V7_ILP32_OFF32_CFLAGS:
#ifdef __ILP32_OFF32_CFLAGS
# if CONF_IS_DEFINED_UNSET (_POSIX_V7_ILP32_OFF32)
# error "__ILP32_OFF32_CFLAGS should not be defined"
# elif CONF_IS_UNDEFINED (_POSIX_V7_ILP32_OFF32)
if (__sysconf (_SC_V7_ILP32_OFF32) < 0)
break;
# endif
string = __ILP32_OFF32_CFLAGS;
string_len = sizeof (__ILP32_OFF32_CFLAGS);
#endif
break;
case _CS_XBS5_ILP32_OFFBIG_CFLAGS:
case _CS_POSIX_V6_ILP32_OFFBIG_CFLAGS:
case _CS_POSIX_V7_ILP32_OFFBIG_CFLAGS:
#ifdef __ILP32_OFFBIG_CFLAGS
# if CONF_IS_DEFINED_UNSET (_POSIX_V7_ILP32_OFFBIG)
# error "__ILP32_OFFBIG_CFLAGS should not be defined"
# elif CONF_IS_UNDEFINED (_POSIX_V7_ILP32_OFFBIG)
if (__sysconf (_SC_V7_ILP32_OFFBIG) < 0)
break;
# endif
string = __ILP32_OFFBIG_CFLAGS;
string_len = sizeof (__ILP32_OFFBIG_CFLAGS);
#endif
break;
case _CS_XBS5_LP64_OFF64_CFLAGS:
case _CS_POSIX_V6_LP64_OFF64_CFLAGS:
case _CS_POSIX_V7_LP64_OFF64_CFLAGS:
#ifdef __LP64_OFF64_CFLAGS
# if CONF_IS_DEFINED_UNSET (_POSIX_V7_LP64_OFF64)
# error "__LP64_OFF64_CFLAGS should not be defined"
# elif CONF_IS_UNDEFINED (_POSIX_V7_LP64_OFF64)
if (__sysconf (_SC_V7_LP64_OFF64) < 0)
break;
# endif
string = __LP64_OFF64_CFLAGS;
string_len = sizeof (__LP64_OFF64_CFLAGS);
#endif
break;
case _CS_XBS5_ILP32_OFF32_LDFLAGS:
case _CS_POSIX_V6_ILP32_OFF32_LDFLAGS:
case _CS_POSIX_V7_ILP32_OFF32_LDFLAGS:
#ifdef __ILP32_OFF32_LDFLAGS
# if CONF_IS_DEFINED_UNSET (_POSIX_V7_ILP32_OFF32 )
# error "__ILP32_OFF32_LDFLAGS should not be defined"
# elif CONF_IS_UNDEFINED (_POSIX_V7_ILP32_OFF32)
if (__sysconf (_SC_V7_ILP32_OFF32) < 0)
break;
# endif
string = __ILP32_OFF32_LDFLAGS;
string_len = sizeof (__ILP32_OFF32_LDFLAGS);
#endif
break;
case _CS_XBS5_ILP32_OFFBIG_LDFLAGS:
case _CS_POSIX_V6_ILP32_OFFBIG_LDFLAGS:
case _CS_POSIX_V7_ILP32_OFFBIG_LDFLAGS:
#ifdef __ILP32_OFFBIG_LDFLAGS
# if CONF_IS_DEFINED_UNSET (_POSIX_V7_ILP32_OFFBIG)
# error "__ILP32_OFFBIG_LDFLAGS should not be defined"
# elif CONF_IS_UNDEFINED (_POSIX_V7_ILP32_OFFBIG)
if (__sysconf (_SC_V7_ILP32_OFFBIG) < 0)
break;
# endif
string = __ILP32_OFFBIG_LDFLAGS;
string_len = sizeof (__ILP32_OFFBIG_LDFLAGS);
#endif
break;
case _CS_XBS5_LP64_OFF64_LDFLAGS:
case _CS_POSIX_V6_LP64_OFF64_LDFLAGS:
case _CS_POSIX_V7_LP64_OFF64_LDFLAGS:
#ifdef __LP64_OFF64_LDFLAGS
# if CONF_IS_DEFINED_UNSET (_POSIX_V7_LP64_OFF64)
# error "__LP64_OFF64_LDFLAGS should not be defined"
# elif CONF_IS_UNDEFINED (_POSIX_V7_LP64_OFF64)
if (__sysconf (_SC_V7_LP64_OFF64) < 0)
break;
# endif
string = __LP64_OFF64_LDFLAGS;
string_len = sizeof (__LP64_OFF64_LDFLAGS);
#endif
break;
case _CS_LFS_CFLAGS:
case _CS_LFS_LINTFLAGS:
#if (CONF_IS_DEFINED_SET (_POSIX_V6_ILP32_OFF32) \
&& CONF_IS_DEFINED_SET (_POSIX_V6_ILP32_OFFBIG))
# define __LFS_CFLAGS "-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64"
/* Signal that we want the new ABI. */
string = __LFS_CFLAGS;
string_len = sizeof (__LFS_CFLAGS);
#endif
break;
case _CS_LFS_LDFLAGS:
case _CS_LFS_LIBS:
/* No special libraries or linker flags needed. */
break;
case _CS_LFS64_CFLAGS:
case _CS_LFS64_LINTFLAGS:
#define __LFS64_CFLAGS "-D_LARGEFILE64_SOURCE"
string = __LFS64_CFLAGS;
string_len = sizeof (__LFS64_CFLAGS);
break;
case _CS_LFS64_LDFLAGS:
case _CS_LFS64_LIBS:
/* No special libraries or linker flags needed. */
break;
case _CS_XBS5_ILP32_OFF32_LIBS:
case _CS_XBS5_ILP32_OFF32_LINTFLAGS:
case _CS_XBS5_ILP32_OFFBIG_LIBS:
case _CS_XBS5_ILP32_OFFBIG_LINTFLAGS:
case _CS_XBS5_LP64_OFF64_LIBS:
case _CS_XBS5_LP64_OFF64_LINTFLAGS:
case _CS_XBS5_LPBIG_OFFBIG_CFLAGS:
case _CS_XBS5_LPBIG_OFFBIG_LDFLAGS:
case _CS_XBS5_LPBIG_OFFBIG_LIBS:
case _CS_XBS5_LPBIG_OFFBIG_LINTFLAGS:
case _CS_POSIX_V6_ILP32_OFF32_LIBS:
case _CS_POSIX_V6_ILP32_OFF32_LINTFLAGS:
case _CS_POSIX_V6_ILP32_OFFBIG_LIBS:
case _CS_POSIX_V6_ILP32_OFFBIG_LINTFLAGS:
case _CS_POSIX_V6_LP64_OFF64_LIBS:
case _CS_POSIX_V6_LP64_OFF64_LINTFLAGS:
case _CS_POSIX_V6_LPBIG_OFFBIG_CFLAGS:
case _CS_POSIX_V6_LPBIG_OFFBIG_LDFLAGS:
case _CS_POSIX_V6_LPBIG_OFFBIG_LIBS:
case _CS_POSIX_V6_LPBIG_OFFBIG_LINTFLAGS:
case _CS_POSIX_V7_ILP32_OFF32_LIBS:
case _CS_POSIX_V7_ILP32_OFF32_LINTFLAGS:
case _CS_POSIX_V7_ILP32_OFFBIG_LIBS:
case _CS_POSIX_V7_ILP32_OFFBIG_LINTFLAGS:
case _CS_POSIX_V7_LP64_OFF64_LIBS:
case _CS_POSIX_V7_LP64_OFF64_LINTFLAGS:
case _CS_POSIX_V7_LPBIG_OFFBIG_CFLAGS:
case _CS_POSIX_V7_LPBIG_OFFBIG_LDFLAGS:
case _CS_POSIX_V7_LPBIG_OFFBIG_LIBS:
case _CS_POSIX_V7_LPBIG_OFFBIG_LINTFLAGS:
/* GNU libc does not require special actions to use LFS functions. */
break;
case _CS_GNU_LIBC_VERSION:
string = "glibc " VERSION;
string_len = sizeof ("glibc " VERSION);
break;
case _CS_GNU_LIBPTHREAD_VERSION:
#ifdef LIBPTHREAD_VERSION
string = LIBPTHREAD_VERSION;
string_len = sizeof LIBPTHREAD_VERSION;
break;
#else
/* No thread library. */
__set_errno (EINVAL);
return 0;
#endif
case _CS_V6_ENV:
case _CS_V7_ENV:
/* Maybe something else is needed in future. */
string = "POSIXLY_CORRECT=1";
string_len = sizeof ("POSIXLY_CORRECT=1");
break;
default:
__set_errno (EINVAL);
return 0;
}
if (len > 0 && buf != NULL)
{
if (string_len <= len)
memcpy (buf, string, string_len);
else
{
memcpy (buf, string, len - 1);
buf[len - 1] = '\0';
}
}
return string_len;
}
libc_hidden_def (__confstr)
libc_hidden_def (confstr)
weak_alias (__confstr, confstr)
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