Mercurial > octave
view liboctave/system/oct-env.cc @ 31605:e88a07dec498 stable
maint: Use macros to begin/end C++ namespaces.
* oct-conf-post-public.in.h: Define two macros (OCTAVE_BEGIN_NAMESPACE,
OCTAVE_END_NAMESPACE) that can be used to start/end a namespace.
* mk-opts.pl, build-env.h, build-env.in.cc, __betainc__.cc, __contourc__.cc,
__dsearchn__.cc, __eigs__.cc, __expint__.cc, __ftp__.cc, __gammainc__.cc,
__ichol__.cc, __ilu__.cc, __isprimelarge__.cc, __lin_interpn__.cc,
__magick_read__.cc, __pchip_deriv__.cc, __qp__.cc, amd.cc, auto-shlib.cc,
auto-shlib.h, balance.cc, base-text-renderer.cc, base-text-renderer.h,
besselj.cc, bitfcns.cc, bsxfun.cc, c-file-ptr-stream.cc, c-file-ptr-stream.h,
call-stack.cc, call-stack.h, ccolamd.cc, cellfun.cc, chol.cc, colamd.cc,
colloc.cc, conv2.cc, daspk.cc, dasrt.cc, dassl.cc, data.cc, data.h, debug.cc,
defaults.cc, defaults.h, defun-int.h, defun.cc, det.cc, dirfns.cc, display.cc,
display.h, dlmread.cc, dmperm.cc, dot.cc, dynamic-ld.cc, dynamic-ld.h, eig.cc,
ellipj.cc, environment.cc, environment.h, error.cc, error.h, errwarn.h,
event-manager.cc, event-manager.h, event-queue.cc, event-queue.h, fcn-info.cc,
fcn-info.h, fft.cc, fft2.cc, fftn.cc, file-io.cc, filter.cc, find.cc,
ft-text-renderer.cc, ft-text-renderer.h, gcd.cc, getgrent.cc, getpwent.cc,
getrusage.cc, givens.cc, gl-render.cc, gl-render.h, gl2ps-print.cc,
gl2ps-print.h, graphics-toolkit.cc, graphics-toolkit.h, graphics.cc,
graphics.in.h, gsvd.cc, gtk-manager.cc, gtk-manager.h, hash.cc, help.cc,
help.h, hess.cc, hex2num.cc, hook-fcn.cc, hook-fcn.h, input.cc, input.h,
interpreter-private.cc, interpreter-private.h, interpreter.cc, interpreter.h,
inv.cc, jsondecode.cc, jsonencode.cc, kron.cc, latex-text-renderer.cc,
latex-text-renderer.h, load-path.cc, load-path.h, load-save.cc, load-save.h,
lookup.cc, ls-ascii-helper.cc, ls-ascii-helper.h, ls-oct-text.cc, ls-utils.cc,
ls-utils.h, lsode.cc, lu.cc, mappers.cc, matrix_type.cc, max.cc, mex-private.h,
mex.cc, mgorth.cc, nproc.cc, oct-fstrm.cc, oct-fstrm.h, oct-hdf5-types.cc,
oct-hdf5-types.h, oct-hist.cc, oct-hist.h, oct-iostrm.cc, oct-iostrm.h,
oct-opengl.h, oct-prcstrm.cc, oct-prcstrm.h, oct-procbuf.cc, oct-procbuf.h,
oct-process.cc, oct-process.h, oct-stdstrm.h, oct-stream.cc, oct-stream.h,
oct-strstrm.cc, oct-strstrm.h, oct-tex-lexer.in.ll, oct-tex-parser.yy,
ordqz.cc, ordschur.cc, pager.cc, pager.h, pinv.cc, pow2.cc, pr-flt-fmt.cc,
pr-output.cc, procstream.cc, procstream.h, psi.cc, qr.cc, quad.cc, quadcc.cc,
qz.cc, rand.cc, rcond.cc, regexp.cc, schur.cc, settings.cc, settings.h,
sighandlers.cc, sighandlers.h, sparse-xdiv.cc, sparse-xdiv.h, sparse-xpow.cc,
sparse-xpow.h, sparse.cc, spparms.cc, sqrtm.cc, stack-frame.cc, stack-frame.h,
stream-euler.cc, strfind.cc, strfns.cc, sub2ind.cc, svd.cc, sylvester.cc,
symbfact.cc, syminfo.cc, syminfo.h, symrcm.cc, symrec.cc, symrec.h,
symscope.cc, symscope.h, symtab.cc, symtab.h, syscalls.cc, sysdep.cc, sysdep.h,
text-engine.cc, text-engine.h, text-renderer.cc, text-renderer.h, time.cc,
toplev.cc, tril.cc, tsearch.cc, typecast.cc, url-handle-manager.cc,
url-handle-manager.h, urlwrite.cc, utils.cc, utils.h, variables.cc,
variables.h, xdiv.cc, xdiv.h, xnorm.cc, xnorm.h, xpow.cc, xpow.h,
__delaunayn__.cc, __fltk_uigetfile__.cc, __glpk__.cc, __init_fltk__.cc,
__init_gnuplot__.cc, __ode15__.cc, __voronoi__.cc, audiodevinfo.cc,
audioread.cc, convhulln.cc, fftw.cc, gzip.cc, mk-build-env-features.sh,
mk-builtins.pl, cdef-class.cc, cdef-class.h, cdef-fwd.h, cdef-manager.cc,
cdef-manager.h, cdef-method.cc, cdef-method.h, cdef-object.cc, cdef-object.h,
cdef-package.cc, cdef-package.h, cdef-property.cc, cdef-property.h,
cdef-utils.cc, cdef-utils.h, ov-base.cc, ov-base.h, ov-bool-mat.cc,
ov-builtin.h, ov-cell.cc, ov-class.cc, ov-class.h, ov-classdef.cc,
ov-classdef.h, ov-complex.cc, ov-fcn-handle.cc, ov-fcn-handle.h, ov-fcn.h,
ov-java.cc, ov-java.h, ov-mex-fcn.h, ov-null-mat.cc, ov-oncleanup.cc,
ov-struct.cc, ov-typeinfo.cc, ov-typeinfo.h, ov-usr-fcn.cc, ov-usr-fcn.h,
ov.cc, ov.h, octave.cc, octave.h, mk-ops.sh, op-b-b.cc, op-b-bm.cc,
op-b-sbm.cc, op-bm-b.cc, op-bm-bm.cc, op-bm-sbm.cc, op-cdm-cdm.cc, op-cell.cc,
op-chm.cc, op-class.cc, op-cm-cm.cc, op-cm-cs.cc, op-cm-m.cc, op-cm-s.cc,
op-cm-scm.cc, op-cm-sm.cc, op-cs-cm.cc, op-cs-cs.cc, op-cs-m.cc, op-cs-s.cc,
op-cs-scm.cc, op-cs-sm.cc, op-dm-dm.cc, op-dm-scm.cc, op-dm-sm.cc,
op-dm-template.cc, op-dms-template.cc, op-fcdm-fcdm.cc, op-fcm-fcm.cc,
op-fcm-fcs.cc, op-fcm-fm.cc, op-fcm-fs.cc, op-fcn.cc, op-fcs-fcm.cc,
op-fcs-fcs.cc, op-fcs-fm.cc, op-fcs-fs.cc, op-fdm-fdm.cc, op-fm-fcm.cc,
op-fm-fcs.cc, op-fm-fm.cc, op-fm-fs.cc, op-fs-fcm.cc, op-fs-fcs.cc,
op-fs-fm.cc, op-fs-fs.cc, op-i16-i16.cc, op-i32-i32.cc, op-i64-i64.cc,
op-i8-i8.cc, op-int-concat.cc, op-m-cm.cc, op-m-cs.cc, op-m-m.cc, op-m-s.cc,
op-m-scm.cc, op-m-sm.cc, op-mi.cc, op-pm-pm.cc, op-pm-scm.cc, op-pm-sm.cc,
op-pm-template.cc, op-range.cc, op-s-cm.cc, op-s-cs.cc, op-s-m.cc, op-s-s.cc,
op-s-scm.cc, op-s-sm.cc, op-sbm-b.cc, op-sbm-bm.cc, op-sbm-sbm.cc,
op-scm-cm.cc, op-scm-cs.cc, op-scm-m.cc, op-scm-s.cc, op-scm-scm.cc,
op-scm-sm.cc, op-sm-cm.cc, op-sm-cs.cc, op-sm-m.cc, op-sm-s.cc, op-sm-scm.cc,
op-sm-sm.cc, op-str-m.cc, op-str-s.cc, op-str-str.cc, op-struct.cc,
op-ui16-ui16.cc, op-ui32-ui32.cc, op-ui64-ui64.cc, op-ui8-ui8.cc, ops.h,
anon-fcn-validator.cc, anon-fcn-validator.h, bp-table.cc, bp-table.h,
comment-list.cc, comment-list.h, filepos.h, lex.h, lex.ll, oct-lvalue.cc,
oct-lvalue.h, oct-parse.yy, parse.h, profiler.cc, profiler.h,
pt-anon-scopes.cc, pt-anon-scopes.h, pt-arg-list.cc, pt-arg-list.h,
pt-args-block.cc, pt-args-block.h, pt-array-list.cc, pt-array-list.h,
pt-assign.cc, pt-assign.h, pt-binop.cc, pt-binop.h, pt-bp.cc, pt-bp.h,
pt-cbinop.cc, pt-cbinop.h, pt-cell.cc, pt-cell.h, pt-check.cc, pt-check.h,
pt-classdef.cc, pt-classdef.h, pt-cmd.h, pt-colon.cc, pt-colon.h, pt-const.cc,
pt-const.h, pt-decl.cc, pt-decl.h, pt-eval.cc, pt-eval.h, pt-except.cc,
pt-except.h, pt-exp.cc, pt-exp.h, pt-fcn-handle.cc, pt-fcn-handle.h, pt-id.cc,
pt-id.h, pt-idx.cc, pt-idx.h, pt-jump.h, pt-loop.cc, pt-loop.h, pt-mat.cc,
pt-mat.h, pt-misc.cc, pt-misc.h, pt-pr-code.cc, pt-pr-code.h, pt-select.cc,
pt-select.h, pt-spmd.cc, pt-spmd.h, pt-stmt.cc, pt-stmt.h, pt-tm-const.cc,
pt-tm-const.h, pt-unop.cc, pt-unop.h, pt-vm-eval.cc, pt-walk.cc, pt-walk.h,
pt.cc, pt.h, token.cc, token.h, Range.cc, Range.h, idx-vector.cc, idx-vector.h,
range-fwd.h, CollocWt.cc, CollocWt.h, aepbalance.cc, aepbalance.h, chol.cc,
chol.h, gepbalance.cc, gepbalance.h, gsvd.cc, gsvd.h, hess.cc, hess.h,
lo-mappers.cc, lo-mappers.h, lo-specfun.cc, lo-specfun.h, lu.cc, lu.h,
oct-convn.cc, oct-convn.h, oct-fftw.cc, oct-fftw.h, oct-norm.cc, oct-norm.h,
oct-rand.cc, oct-rand.h, oct-spparms.cc, oct-spparms.h, qr.cc, qr.h, qrp.cc,
qrp.h, randgamma.cc, randgamma.h, randmtzig.cc, randmtzig.h, randpoisson.cc,
randpoisson.h, schur.cc, schur.h, sparse-chol.cc, sparse-chol.h, sparse-lu.cc,
sparse-lu.h, sparse-qr.cc, sparse-qr.h, svd.cc, svd.h, child-list.cc,
child-list.h, dir-ops.cc, dir-ops.h, file-ops.cc, file-ops.h, file-stat.cc,
file-stat.h, lo-sysdep.cc, lo-sysdep.h, lo-sysinfo.cc, lo-sysinfo.h,
mach-info.cc, mach-info.h, oct-env.cc, oct-env.h, oct-group.cc, oct-group.h,
oct-password.cc, oct-password.h, oct-syscalls.cc, oct-syscalls.h, oct-time.cc,
oct-time.h, oct-uname.cc, oct-uname.h, action-container.cc, action-container.h,
base-list.h, cmd-edit.cc, cmd-edit.h, cmd-hist.cc, cmd-hist.h, f77-fcn.h,
file-info.cc, file-info.h, lo-array-errwarn.cc, lo-array-errwarn.h, lo-hash.cc,
lo-hash.h, lo-ieee.h, lo-regexp.cc, lo-regexp.h, lo-utils.cc, lo-utils.h,
oct-base64.cc, oct-base64.h, oct-glob.cc, oct-glob.h, oct-inttypes.h,
oct-mutex.cc, oct-mutex.h, oct-refcount.h, oct-shlib.cc, oct-shlib.h,
oct-sparse.cc, oct-sparse.h, oct-string.h, octave-preserve-stream-state.h,
pathsearch.cc, pathsearch.h, quit.cc, quit.h, unwind-prot.cc, unwind-prot.h,
url-transfer.cc, url-transfer.h : Use new macros to begin/end C++ namespaces.
author | Rik <rik@octave.org> |
---|---|
date | Thu, 01 Dec 2022 14:23:45 -0800 |
parents | 1921d9d0e62b |
children | aac27ad79be6 |
line wrap: on
line source
//////////////////////////////////////////////////////////////////////// // // Copyright (C) 1996-2022 The Octave Project Developers // // See the file COPYRIGHT.md in the top-level directory of this // distribution or <https://octave.org/copyright/>. // // This file is part of Octave. // // Octave is free software: you can redistribute it and/or modify it // under the terms of the GNU General Public License as published by // the Free Software Foundation, either version 3 of the License, or // (at your option) any later version. // // Octave 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 General Public License for more details. // // You should have received a copy of the GNU General Public License // along with Octave; see the file COPYING. If not, see // <https://www.gnu.org/licenses/>. // //////////////////////////////////////////////////////////////////////// /* The functions listed below were adapted from a similar functions from GNU Bash, the Bourne Again SHell, copyright (C) 1987, 1989, 1991 Free Software Foundation, Inc. octave::sys::env::do_absolute_pathname octave::sys::env::do_base_pathname octave::sys::env::do_chdir octave::sys::env::do_getcwd octave::sys::env::do_make_absolute octave::sys::env::do_polite_directory_format octave::sys::env::pathname_backup */ #if defined (HAVE_CONFIG_H) # include "config.h" #endif #include <cctype> #include <cstdlib> #include <cstring> #include <string> #include "file-ops.h" #include "lo-error.h" #include "lo-sysdep.h" #include "lo-utils.h" #include "oct-env.h" #include "oct-password.h" #include "oct-syscalls.h" #include "set-program-name-wrapper.h" #include "singleton-cleanup.h" #include "unistd-wrappers.h" #if defined (OCTAVE_USE_WINDOWS_API) # include <windows.h> # include <shlobj.h> #endif OCTAVE_BEGIN_NAMESPACE(octave) OCTAVE_BEGIN_NAMESPACE(sys) env::env (void) : m_follow_symbolic_links (true), m_verbatim_pwd (true), m_current_directory (), m_prog_name (), m_prog_invocation_name (), m_user_name (), m_host_name () { // Get a real value for the current directory. do_getcwd (); // Etc. do_get_user_name (); do_get_host_name (); } env *env::m_instance = nullptr; bool env::instance_ok (void) { bool retval = true; if (! m_instance) { m_instance = new env (); singleton_cleanup_list::add (cleanup_instance); } return retval; } std::string env::polite_directory_format (const std::string& name) { return (instance_ok ()) ? m_instance->do_polite_directory_format (name) : ""; } bool env::absolute_pathname (const std::string& s) { return (instance_ok ()) ? m_instance->do_absolute_pathname (s) : false; } bool env::rooted_relative_pathname (const std::string& s) { return (instance_ok ()) ? m_instance->do_rooted_relative_pathname (s) : false; } std::string env::base_pathname (const std::string& s) { return (instance_ok ()) ? m_instance->do_base_pathname (s) : ""; } std::string env::make_absolute (const std::string& s, const std::string& dot_path) { return (instance_ok ()) ? m_instance->do_make_absolute (s, dot_path) : ""; } std::string env::get_current_directory () { return (instance_ok ()) ? m_instance->do_getcwd () : ""; } std::string env::get_home_directory () { return (instance_ok ()) ? m_instance->do_get_home_directory () : ""; } std::string env::get_temp_directory () { return (instance_ok ()) ? m_instance->do_get_temp_directory () : ""; } std::string env::get_user_config_directory () { return (instance_ok ()) ? m_instance->do_get_user_config_directory () : ""; } std::string env::get_user_data_directory () { return (instance_ok ()) ? m_instance->do_get_user_data_directory () : ""; } std::string env::get_program_name (void) { return (instance_ok ()) ? m_instance->m_prog_name : ""; } std::string env::get_program_invocation_name (void) { return (instance_ok ()) ? m_instance->m_prog_invocation_name : ""; } void env::set_program_name (const std::string& s) { if (instance_ok ()) m_instance->do_set_program_name (s); } std::string env::get_user_name (void) { return (instance_ok ()) ? m_instance->do_get_user_name () : ""; } std::string env::get_host_name (void) { return (instance_ok ()) ? m_instance->do_get_host_name () : ""; } std::string env::do_get_temp_directory (void) const { std::string tempd = do_getenv ("TMPDIR"); #if defined (__MINGW32__) || defined (_MSC_VER) if (tempd.empty ()) tempd = do_getenv ("TEMP"); if (tempd.empty ()) tempd = do_getenv ("TMP"); #if defined (P_tmpdir) if (tempd.empty ()) tempd = P_tmpdir; #endif // Some versions of MinGW and MSVC either don't define P_tmpdir, or // define it to a single backslash. In such cases just use C:\temp. if (tempd.empty () || tempd == R"(\)") tempd = R"(c:\temp)"; #else if (tempd.empty ()) tempd = do_getenv ("TMP"); #if defined (P_tmpdir) if (tempd.empty ()) tempd = P_tmpdir; #else if (tempd.empty ()) tempd = "/tmp"; #endif #endif return tempd; } std::string env::do_get_user_config_directory (void) { std::string cfg_dir; #if defined (OCTAVE_HAVE_WINDOWS_FILESYSTEM) && defined (OCTAVE_USE_WINDOWS_API) wchar_t path[MAX_PATH+1]; if (SHGetFolderPathW (nullptr, CSIDL_APPDATA | CSIDL_FLAG_DONT_VERIFY, nullptr, SHGFP_TYPE_CURRENT, path) == S_OK) cfg_dir = u8_from_wstring (path); #else cfg_dir = do_getenv ("XDG_CONFIG_HOME"); #endif if (cfg_dir.empty ()) cfg_dir = do_get_home_directory () + sys::file_ops::dir_sep_str () + ".config"; return cfg_dir; } std::string env::do_get_user_data_directory (void) { std::string data_dir; #if defined (OCTAVE_HAVE_WINDOWS_FILESYSTEM) && defined (OCTAVE_USE_WINDOWS_API) wchar_t path[MAX_PATH+1]; if (SHGetFolderPathW (nullptr, CSIDL_APPDATA | CSIDL_FLAG_DONT_VERIFY, nullptr, SHGFP_TYPE_CURRENT, path) == S_OK) data_dir = u8_from_wstring (path); #else data_dir = do_getenv ("XDG_DATA_HOME"); #endif if (data_dir.empty ()) data_dir = do_get_home_directory () + sys::file_ops::dir_sep_str () + ".local" + sys::file_ops::dir_sep_str () + "share"; return data_dir; } // FIXME: this leaves no way to distinguish between a // variable that is not set and one that is set to the empty string. // Is this a problem? std::string env::getenv (const std::string& name) { return (instance_ok ()) ? m_instance->do_getenv (name) : ""; } void env::putenv (const std::string& name, const std::string& value) { putenv_wrapper (name, value); } bool env::have_x11_display (void) { std::string display = getenv ("DISPLAY"); return ! display.empty (); } bool env::chdir (const std::string& newdir) { return (instance_ok ()) ? m_instance->do_chdir (newdir) : false; } void env::do_set_program_name (const std::string& s) { static bool initialized = false; if (! initialized) { // octave_set_program_name_wrapper returns a cleaned up // version of the program name (stripping libtool's "lt-" // prefix, for example). // The string passed to gnulib's ::set_program_name function must // exist for the duration of the program so allocate a copy here // instead of passing S.c_str () which only exists as long as the // string object S. m_prog_invocation_name = octave_set_program_name_wrapper (strsave (s.c_str ())); std::size_t pos = m_prog_invocation_name.find_last_of (sys::file_ops::dir_sep_chars ()); // Also keep a shortened version of the program name. m_prog_name = (pos == std::string::npos ? m_prog_invocation_name : m_prog_invocation_name.substr (pos+1)); initialized = true; } } // Return a pretty pathname. If the first part of the pathname is the // same as $HOME, then replace that with '~'. std::string env::do_polite_directory_format (const std::string& name) { std::string retval; std::string home_dir = do_get_home_directory (); std::size_t len = home_dir.length (); if (len > 1 && home_dir == name.substr (0, len) && (name.length () == len || sys::file_ops::is_dir_sep (name[len]))) { retval = "~"; retval.append (name.substr (len)); } else retval = name; return retval; } bool env::do_absolute_pathname (const std::string& s) const { std::size_t len = s.length (); if (len == 0) return false; if (sys::file_ops::is_dir_sep (s[0])) return true; #if defined (OCTAVE_HAVE_WINDOWS_FILESYSTEM) if ((len == 2 && isalpha (s[0]) && s[1] == ':') || (len > 2 && isalpha (s[0]) && s[1] == ':' && sys::file_ops::is_dir_sep (s[2]))) return true; #endif return false; } bool env::do_rooted_relative_pathname (const std::string& s) const { std::size_t len = s.length (); if (len == 0) return false; if (len == 1 && s[0] == '.') return true; if (len > 1 && s[0] == '.' && sys::file_ops::is_dir_sep (s[1])) return true; if (len == 2 && s[0] == '.' && s[1] == '.') return true; if (len > 2 && s[0] == '.' && s[1] == '.' && sys::file_ops::is_dir_sep (s[2])) return true; return false; } // Return the 'basename' of the pathname in STRING (the stuff after // the last directory separator). If STRING is not a full pathname, // simply return it. std::string env::do_base_pathname (const std::string& s) const { if (! (do_absolute_pathname (s) || do_rooted_relative_pathname (s))) return s; std::size_t pos = s.find_last_of (sys::file_ops::dir_sep_chars ()); if (pos == std::string::npos) return s; else return s.substr (pos+1); } // Turn STRING (a pathname) into an absolute pathname, assuming that // DOT_PATH contains the symbolic location of the current directory. std::string env::do_make_absolute (const std::string& s, const std::string& dot_path) const { if (dot_path.empty () || s.empty () || do_absolute_pathname (s)) return s; // Optimization: every time Octave returns to the prompt it calls // make_absolute_filename with '.' as argument. if (s == ".") return dot_path; std::string current_dir = dot_path; if (! sys::file_ops::is_dir_sep (current_dir.back ())) current_dir.append (sys::file_ops::dir_sep_str ()); std::size_t i = 0; std::size_t slen = s.length (); while (i < slen) { if (s[i] == '.') { if (i + 1 == slen) break; if (sys::file_ops::is_dir_sep (s[i+1])) { i += 2; continue; } if (s[i+1] == '.' && (i + 2 == slen || sys::file_ops::is_dir_sep (s[i+2]))) { i += 2; if (i != slen) i++; pathname_backup (current_dir, 1); continue; } } std::size_t sep_pos; sep_pos = s.find_first_of (sys::file_ops::dir_sep_chars (), i); if (sep_pos == std::string::npos) { current_dir.append (s, i, sep_pos-i); break; } else if (sep_pos == i) { /* Two separators in a row, skip adding 2nd separator */ i++; } else { current_dir.append (s, i, sep_pos-i+1); i = sep_pos + 1; } } // Strip any trailing directory separator if (sys::file_ops::is_dir_sep (current_dir.back ())) current_dir.pop_back (); return current_dir; } // Return a string which is the current working directory. std::string env::do_getcwd (void) { if (! m_follow_symbolic_links) m_current_directory = ""; if (m_verbatim_pwd || m_current_directory.empty ()) m_current_directory = sys::getcwd (); return m_current_directory; } // This value is not cached because it can change while Octave is // running. std::string env::do_get_home_directory (void) { std::string hd = do_getenv ("HOME"); #if defined (__MINGW32__) || defined (_MSC_VER) // Maybe we are started directly from cmd.exe. if (hd.empty ()) { std::string drv = do_getenv ("HOMEDRIVE"); if (drv.empty ()) hd = do_getenv ("HOMEPATH"); else hd = drv + do_getenv ("HOMEPATH"); } #endif if (hd.empty ()) { sys::password pw = sys::password::getpwuid (sys::getuid ()); hd = (pw ? pw.dir () : std::string (sys::file_ops::dir_sep_str ())); } return hd; } std::string env::do_get_user_name (void) { if (m_user_name.empty ()) { sys::password pw = sys::password::getpwuid (sys::getuid ()); m_user_name = (pw ? pw.name () : "unknown"); } return m_user_name; } std::string env::do_get_host_name (void) { if (m_host_name.empty ()) { char hostname[1024]; int status = octave_gethostname_wrapper (hostname, 1023); m_host_name = (status < 0) ? "unknown" : hostname; } return m_host_name; } std::string env::do_getenv (const std::string& name) const { return getenv_wrapper (name); } // Do the work of changing to the directory NEWDIR. // Handle symbolic link following, etc. bool env::do_chdir (const std::string& newdir) { bool retval = false; std::string tmp; if (m_follow_symbolic_links) { if (m_current_directory.empty ()) do_getcwd (); if (m_current_directory.empty ()) tmp = newdir; else tmp = do_make_absolute (newdir, m_current_directory); // Get rid of trailing directory separator. if (tmp.length () > 1 && sys::file_ops::is_dir_sep (tmp.back ())) tmp.pop_back (); if (! sys::chdir (tmp)) { m_current_directory = tmp; retval = true; } } else retval = (! sys::chdir (newdir)); return retval; } // Remove the last N directories from PATH. void env::pathname_backup (std::string& path, int n) const { if (path.empty ()) return; std::size_t i = path.length () - 1; while (n--) { while (sys::file_ops::is_dir_sep (path[i]) && i > 0) i--; #if defined (OCTAVE_HAVE_WINDOWS_FILESYSTEM) // Don't strip file letter part. if (i == 1 && path[i] == ':') { // Keep path separator if present. i = std::min (i+2, path.length ()); break; } #endif while (! sys::file_ops::is_dir_sep (path[i]) && i > 0) i--; i++; } path.resize (i); } void env::error (int err_num) const { (*current_liboctave_error_handler) ("%s", std::strerror (err_num)); } void env::error (const std::string& s) const { (*current_liboctave_error_handler) ("%s", s.c_str ()); } OCTAVE_END_NAMESPACE(sys) OCTAVE_END_NAMESPACE(octave)