/* Copyright (C) 1991, 1996, 1997, 2000-2002, 2003, 2004 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/>. */ #include <stddef.h> #include <errno.h> #include <unistd.h> #include <string.h> #define CS_PATH "/bin:/usr/bin" /* 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; switch (name) { case _CS_PATH: { static const char cs_path[] = CS_PATH; string = cs_path; string_len = sizeof (cs_path); } break; #ifdef __UCLIBC_HAS_THREADS__ case _CS_GNU_LIBPTHREAD_VERSION: # if defined __LINUXTHREADS_OLD__ string = "linuxthreads-0.01"; string_len = sizeof("linuxthreads-x.xx"); # elif defined __LINUXTHREADS_NEW__ string = "linuxthreads-0.10"; string_len = sizeof("linuxthreads-x.xx"); # elif defined __UCLIBC_HAS_THREADS_NATIVE__ # define __NPTL_VERSION ("NPTL " \ __stringify(__UCLIBC_MAJOR__) "." \ __stringify(__UCLIBC_MINOR__) "." \ __stringify(__UCLIBC_SUBLEVEL__)) string = __NPTL_VERSION; string_len = sizeof(__NPTL_VERSION); # else # error unable to determine thread impl # endif break; #endif 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; }