The file is taken from FreeBSD
and added to lib/libc/gen
Update #3373
Signed-off-by: Eshan dhawan <eshandhawa...@gmail.com>
---
freebsd/lib/libc/gen/confstr.c | 127 +++++++++++++++++++++++++++++++++
libbsd.py | 1 +
2 files changed, 128 insertions(+)
create mode 100644 freebsd/lib/libc/gen/confstr.c
diff --git a/freebsd/lib/libc/gen/confstr.c b/freebsd/lib/libc/gen/confstr.c
new file mode 100644
index 00000000..653f581b
--- /dev/null
+++ b/freebsd/lib/libc/gen/confstr.c
@@ -0,0 +1,127 @@
+/*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright (c) 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+__SCCSID("@(#)confstr.c 8.1 (Berkeley) 6/4/93");
+__FBSDID("$FreeBSD$");
+
+#include <sys/param.h>
+
+#include <errno.h>
+#include <limits.h>
+#include <paths.h>
+#include <string.h>
+#include <unistd.h>
+
+
+size_t
+confstr(int name, char *buf, size_t len)
+{
+ const char *p;
+ const char UPE[] = "unsupported programming environment";
+
+ switch (name) {
+#ifndef __rtems__
+ case _CS_PATH:
+ p = _PATH_STDPATH;
+ goto docopy;
+#endif
+ /*
+ * POSIX/SUS ``Programming Environments'' stuff
+ *
+ * We don't support more than one programming environment
+ * on any platform (yet), so we just return the empty
+ * string for the environment we are compiled for,
+ * and the string "unsupported programming environment"
+ * for anything else. (The Standard says that if these
+ * values are used on a system which does not support
+ * this environment -- determined via sysconf() -- then
+ * the value we return is unspecified. So, we return
+ * something which will cause obvious breakage.)
+ */
+ case _CS_POSIX_V6_ILP32_OFF32_CFLAGS:
+ case _CS_POSIX_V6_ILP32_OFF32_LDFLAGS:
+ case _CS_POSIX_V6_ILP32_OFF32_LIBS:
+ case _CS_POSIX_V6_LPBIG_OFFBIG_CFLAGS:
+ case _CS_POSIX_V6_LPBIG_OFFBIG_LDFLAGS:
+ case _CS_POSIX_V6_LPBIG_OFFBIG_LIBS:
+ /*
+ * These two environments are never supported.
+ */
+ p = UPE;
+ goto docopy;
+
+ case _CS_POSIX_V6_ILP32_OFFBIG_CFLAGS:
+ case _CS_POSIX_V6_ILP32_OFFBIG_LDFLAGS:
+ case _CS_POSIX_V6_ILP32_OFFBIG_LIBS:
+#ifndef __rtems__
+ if (sizeof(long) * CHAR_BIT == 32 &&
+ sizeof(off_t) > sizeof(long))
+ p = "";
+ else
+#endif
+ p = UPE;
+ goto docopy;
+
+ case _CS_POSIX_V6_LP64_OFF64_CFLAGS:
+ case _CS_POSIX_V6_LP64_OFF64_LDFLAGS:
+ case _CS_POSIX_V6_LP64_OFF64_LIBS:
+#ifndef __rtems__
+ if (sizeof(long) * CHAR_BIT >= 64 &&
+ sizeof(void *) * CHAR_BIT >= 64 &&
+ sizeof(int) * CHAR_BIT >= 32 &&
+ sizeof(off_t) >= sizeof(long))
+ p = "";
+ else
+#endif
+ p = UPE;
+ goto docopy;
+#ifndef __rtems__
+ case _CS_POSIX_V6_WIDTH_RESTRICTED_ENVS:
+ /* XXX - should have more complete coverage */
+ if (sizeof(long) * CHAR_BIT >= 64)
+ p = "_POSIX_V6_LP64_OFF64";
+ else
+ p = "_POSIX_V6_ILP32_OFFBIG";
+ goto docopy;
+#endif
+
+docopy:
+ if (len != 0 && buf != NULL)
+ strlcpy(buf, p, len);
+ return (strlen(p) + 1);
+
+ default:
+ errno = EINVAL;
+ return (0);
+ }
+ /* NOTREACHED */
+}
diff --git a/libbsd.py b/libbsd.py
index 812674a6..9beba660 100644
--- a/libbsd.py
+++ b/libbsd.py
@@ -2952,6 +2952,7 @@ class user_space(builder.Module):
'lib/libc/gen/getdomainname.c',
'lib/libc/gen/gethostname.c',
'lib/libc/gen/sethostname.c',
+ 'lib/libc/gen/confstr.c',
'lib/libc/inet/inet_addr.c',
'lib/libc/inet/inet_cidr_ntop.c',
'lib/libc/inet/inet_cidr_pton.c',
--
2.17.1
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