minix/external/bsd/kyua-testers/dist/env.c
Lionel Sambuc 11be35a165 Importing NetBSD "Kyua" test framework
To do so, a few dependencies have been imported:

 * external/bsd/lutok
 * external/mit/lua
 * external/public-domain/sqlite
 * external/public-domain/xz

The Kyua framework is the new generation of ATF (Automated Test
Framework), it is composed of:

 * external/bsd/atf
 * external/bsd/kyua-atf-compat
 * external/bsd/kyua-cli
 * external/bsd/kyua-tester
 * tests

Kyua/ATF being written in C++, it depends on libstdc++ which is
provided by GCC. As this is not part of the sources, Kyua is only
compiled when the native GCC utils are installed.

To install Kyua do the following:

 * In a cross-build enviromnent, add the following to the build.sh
   commandline: -V MKBINUTILS=yes -V MKGCCCMDS=yes

WARNING:
  At this point the import is still experimental, and not supported
  on native builds (a.k.a make build).

Change-Id: I26aee23c5bbd2d64adcb7c1beb98fe0d479d7ada
2013-07-23 20:43:41 +02:00

105 lines
3.4 KiB
C

// Copyright 2012 Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * 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.
// * Neither the name of Google Inc. 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 COPYRIGHT HOLDERS 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 COPYRIGHT
// OWNER 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.
#if defined(HAVE_CONFIG_H)
# include "config.h"
#endif
#include "env.h"
#include <assert.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "error.h"
/// Sets an environment variable.
///
/// \param name Name of the environment variable to set.
/// \param value Value to be set.
///
/// \return An error object.
kyua_error_t
kyua_env_set(const char* name, const char* value)
{
kyua_error_t error;
#if defined(HAVE_SETENV)
if (setenv(name, value, 1) == -1)
error = kyua_libc_error_new(
errno, "Failed to set environment variable %s to %s", name, value);
else
error = kyua_error_ok();
#elif defined(HAVE_PUTENV)
const size_t length = strlen(name) + strlen(value) + 2;
char* buffer = (char*)malloc(length);
if (buffer == NULL)
error = kyua_oom_error_new();
else {
const size_t printed_length = snprintf(buffer, length, "%s=%s", name,
value);
assert(length == printed_length + 1);
if (putenv(buffer) == -1) {
error = kyua_libc_error_new(
errno, "Failed to set environment variable %s to %s",
name, value);
free(buffer);
} else
error = kyua_error_ok();
}
#else
# error "Don't know how to set an environment variable."
#endif
return error;
}
/// Unsets an environment variable.
///
/// \param name Name of the environment variable to unset.
///
/// \return An error object.
kyua_error_t
kyua_env_unset(const char* name)
{
#if defined(HAVE_UNSETENV)
if (unsetenv(name) == -1)
return kyua_libc_error_new(
errno, "Failed to unset environment variable %s", name);
else
return kyua_error_ok();
#elif defined(HAVE_PUTENV)
return kyua_env_set(name, "");
#else
# error "Don't know how to unset an environment variable."
#endif
}