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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-05 18:37:14 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-05 18:37:14 +0000
commitea648e70a989cca190cd7403fe892fd2dcc290b4 (patch)
treee2b6b1c647da68b0d4d66082835e256eb30970e8 /unit/atf-src/atf-c++/detail/fs.cpp
parentInitial commit. (diff)
downloadbind9-upstream.tar.xz
bind9-upstream.zip
Adding upstream version 1:9.11.5.P4+dfsg.upstream/1%9.11.5.P4+dfsgupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'unit/atf-src/atf-c++/detail/fs.cpp')
-rw-r--r--unit/atf-src/atf-c++/detail/fs.cpp513
1 files changed, 513 insertions, 0 deletions
diff --git a/unit/atf-src/atf-c++/detail/fs.cpp b/unit/atf-src/atf-c++/detail/fs.cpp
new file mode 100644
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--- /dev/null
+++ b/unit/atf-src/atf-c++/detail/fs.cpp
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+// Copyright (c) 2007 The NetBSD Foundation, 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:
+// 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.
+//
+// THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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 "atf-c++/detail/fs.hpp"
+
+#if defined(HAVE_CONFIG_H)
+#include "config.h"
+#endif
+
+extern "C" {
+#include <sys/param.h>
+#include <sys/types.h>
+#include <sys/mount.h>
+#include <sys/stat.h>
+#include <sys/wait.h>
+#include <dirent.h>
+#include <libgen.h>
+#include <unistd.h>
+}
+
+#include <cerrno>
+#include <cstdlib>
+#include <cstring>
+
+extern "C" {
+#include "atf-c/error.h"
+}
+
+#include "atf-c++/detail/env.hpp"
+#include "atf-c++/detail/exceptions.hpp"
+#include "atf-c++/detail/process.hpp"
+#include "atf-c++/detail/sanity.hpp"
+#include "atf-c++/detail/text.hpp"
+#include "atf-c++/utils.hpp"
+
+namespace impl = atf::fs;
+#define IMPL_NAME "atf::fs"
+
+// ------------------------------------------------------------------------
+// Auxiliary functions.
+// ------------------------------------------------------------------------
+
+static bool safe_access(const impl::path&, int, int);
+
+//!
+//! \brief A controlled version of access(2).
+//!
+//! This function reimplements the standard access(2) system call to
+//! safely control its exit status and raise an exception in case of
+//! failure.
+//!
+static
+bool
+safe_access(const impl::path& p, int mode, int experr)
+{
+ bool ok;
+
+ atf_error_t err = atf_fs_eaccess(p.c_path(), mode);
+ if (atf_is_error(err)) {
+ if (atf_error_is(err, "libc")) {
+ if (atf_libc_error_code(err) == experr) {
+ atf_error_free(err);
+ ok = false;
+ } else {
+ atf::throw_atf_error(err);
+ // XXX Silence warning; maybe throw_atf_error should be
+ // an exception and not a function.
+ ok = false;
+ }
+ } else {
+ atf::throw_atf_error(err);
+ // XXX Silence warning; maybe throw_atf_error should be
+ // an exception and not a function.
+ ok = false;
+ }
+ } else
+ ok = true;
+
+ return ok;
+}
+
+// ------------------------------------------------------------------------
+// The "path" class.
+// ------------------------------------------------------------------------
+
+impl::path::path(const std::string& s)
+{
+ atf_error_t err = atf_fs_path_init_fmt(&m_path, "%s", s.c_str());
+ if (atf_is_error(err))
+ throw_atf_error(err);
+}
+
+impl::path::path(const path& p)
+{
+ atf_error_t err = atf_fs_path_copy(&m_path, &p.m_path);
+ if (atf_is_error(err))
+ throw_atf_error(err);
+}
+
+impl::path::path(const atf_fs_path_t *p)
+{
+ atf_error_t err = atf_fs_path_copy(&m_path, p);
+ if (atf_is_error(err))
+ throw_atf_error(err);
+}
+
+impl::path::~path(void)
+{
+ atf_fs_path_fini(&m_path);
+}
+
+const char*
+impl::path::c_str(void)
+ const
+{
+ return atf_fs_path_cstring(&m_path);
+}
+
+const atf_fs_path_t*
+impl::path::c_path(void)
+ const
+{
+ return &m_path;
+}
+
+std::string
+impl::path::str(void)
+ const
+{
+ return c_str();
+}
+
+bool
+impl::path::is_absolute(void)
+ const
+{
+ return atf_fs_path_is_absolute(&m_path);
+}
+
+bool
+impl::path::is_root(void)
+ const
+{
+ return atf_fs_path_is_root(&m_path);
+}
+
+impl::path
+impl::path::branch_path(void)
+ const
+{
+ atf_fs_path_t bp;
+ atf_error_t err;
+
+ err = atf_fs_path_branch_path(&m_path, &bp);
+ if (atf_is_error(err))
+ throw_atf_error(err);
+
+ path p(atf_fs_path_cstring(&bp));
+ atf_fs_path_fini(&bp);
+ return p;
+}
+
+std::string
+impl::path::leaf_name(void)
+ const
+{
+ atf_dynstr_t ln;
+ atf_error_t err;
+
+ err = atf_fs_path_leaf_name(&m_path, &ln);
+ if (atf_is_error(err))
+ throw_atf_error(err);
+
+ std::string s(atf_dynstr_cstring(&ln));
+ atf_dynstr_fini(&ln);
+ return s;
+}
+
+impl::path
+impl::path::to_absolute(void)
+ const
+{
+ atf_fs_path_t pa;
+
+ atf_error_t err = atf_fs_path_to_absolute(&m_path, &pa);
+ if (atf_is_error(err))
+ throw_atf_error(err);
+
+ path p(atf_fs_path_cstring(&pa));
+ atf_fs_path_fini(&pa);
+ return p;
+}
+
+impl::path&
+impl::path::operator=(const path& p)
+{
+ atf_fs_path_t tmp;
+
+ atf_error_t err = atf_fs_path_init_fmt(&tmp, "%s", p.c_str());
+ if (atf_is_error(err))
+ throw_atf_error(err);
+ else {
+ atf_fs_path_fini(&m_path);
+ m_path = tmp;
+ }
+
+ return *this;
+}
+
+bool
+impl::path::operator==(const path& p)
+ const
+{
+ return atf_equal_fs_path_fs_path(&m_path, &p.m_path);
+}
+
+bool
+impl::path::operator!=(const path& p)
+ const
+{
+ return !atf_equal_fs_path_fs_path(&m_path, &p.m_path);
+}
+
+impl::path
+impl::path::operator/(const std::string& p)
+ const
+{
+ path p2 = *this;
+
+ atf_error_t err = atf_fs_path_append_fmt(&p2.m_path, "%s", p.c_str());
+ if (atf_is_error(err))
+ throw_atf_error(err);
+
+ return p2;
+}
+
+impl::path
+impl::path::operator/(const path& p)
+ const
+{
+ path p2 = *this;
+
+ atf_error_t err = atf_fs_path_append_fmt(&p2.m_path, "%s",
+ atf_fs_path_cstring(&p.m_path));
+ if (atf_is_error(err))
+ throw_atf_error(err);
+
+ return p2;
+}
+
+bool
+impl::path::operator<(const path& p)
+ const
+{
+ const char *s1 = atf_fs_path_cstring(&m_path);
+ const char *s2 = atf_fs_path_cstring(&p.m_path);
+ return std::strcmp(s1, s2) < 0;
+}
+
+// ------------------------------------------------------------------------
+// The "file_info" class.
+// ------------------------------------------------------------------------
+
+const int impl::file_info::blk_type = atf_fs_stat_blk_type;
+const int impl::file_info::chr_type = atf_fs_stat_chr_type;
+const int impl::file_info::dir_type = atf_fs_stat_dir_type;
+const int impl::file_info::fifo_type = atf_fs_stat_fifo_type;
+const int impl::file_info::lnk_type = atf_fs_stat_lnk_type;
+const int impl::file_info::reg_type = atf_fs_stat_reg_type;
+const int impl::file_info::sock_type = atf_fs_stat_sock_type;
+const int impl::file_info::wht_type = atf_fs_stat_wht_type;
+
+impl::file_info::file_info(const path& p)
+{
+ atf_error_t err;
+
+ err = atf_fs_stat_init(&m_stat, p.c_path());
+ if (atf_is_error(err))
+ throw_atf_error(err);
+}
+
+impl::file_info::file_info(const file_info& fi)
+{
+ atf_fs_stat_copy(&m_stat, &fi.m_stat);
+}
+
+impl::file_info::~file_info(void)
+{
+ atf_fs_stat_fini(&m_stat);
+}
+
+dev_t
+impl::file_info::get_device(void)
+ const
+{
+ return atf_fs_stat_get_device(&m_stat);
+}
+
+ino_t
+impl::file_info::get_inode(void)
+ const
+{
+ return atf_fs_stat_get_inode(&m_stat);
+}
+
+mode_t
+impl::file_info::get_mode(void)
+ const
+{
+ return atf_fs_stat_get_mode(&m_stat);
+}
+
+off_t
+impl::file_info::get_size(void)
+ const
+{
+ return atf_fs_stat_get_size(&m_stat);
+}
+
+int
+impl::file_info::get_type(void)
+ const
+{
+ return atf_fs_stat_get_type(&m_stat);
+}
+
+bool
+impl::file_info::is_owner_readable(void)
+ const
+{
+ return atf_fs_stat_is_owner_readable(&m_stat);
+}
+
+bool
+impl::file_info::is_owner_writable(void)
+ const
+{
+ return atf_fs_stat_is_owner_writable(&m_stat);
+}
+
+bool
+impl::file_info::is_owner_executable(void)
+ const
+{
+ return atf_fs_stat_is_owner_executable(&m_stat);
+}
+
+bool
+impl::file_info::is_group_readable(void)
+ const
+{
+ return atf_fs_stat_is_group_readable(&m_stat);
+}
+
+bool
+impl::file_info::is_group_writable(void)
+ const
+{
+ return atf_fs_stat_is_group_writable(&m_stat);
+}
+
+bool
+impl::file_info::is_group_executable(void)
+ const
+{
+ return atf_fs_stat_is_group_executable(&m_stat);
+}
+
+bool
+impl::file_info::is_other_readable(void)
+ const
+{
+ return atf_fs_stat_is_other_readable(&m_stat);
+}
+
+bool
+impl::file_info::is_other_writable(void)
+ const
+{
+ return atf_fs_stat_is_other_writable(&m_stat);
+}
+
+bool
+impl::file_info::is_other_executable(void)
+ const
+{
+ return atf_fs_stat_is_other_executable(&m_stat);
+}
+
+// ------------------------------------------------------------------------
+// The "directory" class.
+// ------------------------------------------------------------------------
+
+impl::directory::directory(const path& p)
+{
+ DIR* dp = ::opendir(p.c_str());
+ if (dp == NULL)
+ throw system_error(IMPL_NAME "::directory::directory(" +
+ p.str() + ")", "opendir(3) failed", errno);
+
+ struct dirent* dep;
+ while ((dep = ::readdir(dp)) != NULL) {
+ path entryp = p / dep->d_name;
+ insert(value_type(dep->d_name, file_info(entryp)));
+ }
+
+ if (::closedir(dp) == -1)
+ throw system_error(IMPL_NAME "::directory::directory(" +
+ p.str() + ")", "closedir(3) failed", errno);
+}
+
+std::set< std::string >
+impl::directory::names(void)
+ const
+{
+ std::set< std::string > ns;
+
+ for (const_iterator iter = begin(); iter != end(); iter++)
+ ns.insert((*iter).first);
+
+ return ns;
+}
+
+// ------------------------------------------------------------------------
+// Free functions.
+// ------------------------------------------------------------------------
+
+bool
+impl::exists(const path& p)
+{
+ atf_error_t err;
+ bool b;
+
+ err = atf_fs_exists(p.c_path(), &b);
+ if (atf_is_error(err))
+ throw_atf_error(err);
+
+ return b;
+}
+
+bool
+impl::have_prog_in_path(const std::string& prog)
+{
+ PRE(prog.find('/') == std::string::npos);
+
+ // Do not bother to provide a default value for PATH. If it is not
+ // there something is broken in the user's environment.
+ if (!atf::env::has("PATH"))
+ throw std::runtime_error("PATH not defined in the environment");
+ std::vector< std::string > dirs =
+ atf::text::split(atf::env::get("PATH"), ":");
+
+ bool found = false;
+ for (std::vector< std::string >::const_iterator iter = dirs.begin();
+ !found && iter != dirs.end(); iter++) {
+ const path& dir = path(*iter);
+
+ if (is_executable(dir / prog))
+ found = true;
+ }
+ return found;
+}
+
+bool
+impl::is_executable(const path& p)
+{
+ if (!exists(p))
+ return false;
+ return safe_access(p, atf_fs_access_x, EACCES);
+}
+
+void
+impl::remove(const path& p)
+{
+ if (file_info(p).get_type() == file_info::dir_type)
+ throw atf::system_error(IMPL_NAME "::remove(" + p.str() + ")",
+ "Is a directory",
+ EPERM);
+ if (::unlink(p.c_str()) == -1)
+ throw atf::system_error(IMPL_NAME "::remove(" + p.str() + ")",
+ "unlink(" + p.str() + ") failed",
+ errno);
+}
+
+void
+impl::rmdir(const path& p)
+{
+ atf_error_t err = atf_fs_rmdir(p.c_path());
+ if (atf_is_error(err))
+ throw_atf_error(err);
+}