octave-kai/gnulib-hg: lib/progname.c annotate

annotate lib/progname.c @ 17429:88b6febaed97

tests: port large-fd POSIX spawn tests to OS X Problem reported by Daiki Ueno in <http://lists.gnu.org/archive/html/bug-gnulib/2013-06/msg00031.html>. * tests/test-posix_spawn_file_actions_addclose.c: * tests/test-posix_spawn_file_actions_adddup2.c: * tests/test-posix_spawn_file_actions_addopen.c: Include <limits.h>, for OPEN_MAX, if available. (big_fd): New static function. (main): Use it.

author	Paul Eggert <eggert@cs.ucla.edu>
date	Tue, 11 Jun 2013 00:10:21 -0700
parents	e542fd46ad6f
children

rev	line source
4603 fae2e3155b7a New module 'progname'. Bruno Haible <bruno@clisp.org> parents: diff changeset	1 /* Program name management.
17249 e542fd46ad6f maint: update all copyright year number ranges Eric Blake <eblake@redhat.com> parents: 16201 diff changeset	2 Copyright (C) 2001-2003, 2005-2013 Free Software Foundation, Inc.
12386 8fd02a53bfe5 progname: Clarify specification. Bruno Haible <bruno@clisp.org> parents: 12113 diff changeset	3 Written by Bruno Haible <bruno@clisp.org>, 2001.
4603 fae2e3155b7a New module 'progname'. Bruno Haible <bruno@clisp.org> parents: diff changeset	4
9309 bbbbbf4cd1c5 Change copyright notice from GPLv2+ to GPLv3+. Bruno Haible <bruno@clisp.org> parents: 7470 diff changeset	5 This program is free software: you can redistribute it and/or modify
4603 fae2e3155b7a New module 'progname'. Bruno Haible <bruno@clisp.org> parents: diff changeset	6 it under the terms of the GNU General Public License as published by
9309 bbbbbf4cd1c5 Change copyright notice from GPLv2+ to GPLv3+. Bruno Haible <bruno@clisp.org> parents: 7470 diff changeset	7 the Free Software Foundation; either version 3 of the License, or
bbbbbf4cd1c5 Change copyright notice from GPLv2+ to GPLv3+. Bruno Haible <bruno@clisp.org> parents: 7470 diff changeset	8 (at your option) any later version.
4603 fae2e3155b7a New module 'progname'. Bruno Haible <bruno@clisp.org> parents: diff changeset	9
fae2e3155b7a New module 'progname'. Bruno Haible <bruno@clisp.org> parents: diff changeset	10 This program is distributed in the hope that it will be useful,
fae2e3155b7a New module 'progname'. Bruno Haible <bruno@clisp.org> parents: diff changeset	11 but WITHOUT ANY WARRANTY; without even the implied warranty of
fae2e3155b7a New module 'progname'. Bruno Haible <bruno@clisp.org> parents: diff changeset	12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
fae2e3155b7a New module 'progname'. Bruno Haible <bruno@clisp.org> parents: diff changeset	13 GNU General Public License for more details.
fae2e3155b7a New module 'progname'. Bruno Haible <bruno@clisp.org> parents: diff changeset	14
fae2e3155b7a New module 'progname'. Bruno Haible <bruno@clisp.org> parents: diff changeset	15 You should have received a copy of the GNU General Public License
9309 bbbbbf4cd1c5 Change copyright notice from GPLv2+ to GPLv3+. Bruno Haible <bruno@clisp.org> parents: 7470 diff changeset	16 along with this program. If not, see <http://www.gnu.org/licenses/>. */
4603 fae2e3155b7a New module 'progname'. Bruno Haible <bruno@clisp.org> parents: diff changeset	17
fae2e3155b7a New module 'progname'. Bruno Haible <bruno@clisp.org> parents: diff changeset	18
7304 1c4ed7637c24 Include <config.h> unconditionally. Bruno Haible <bruno@clisp.org> parents: 6259 diff changeset	19 #include <config.h>
4603 fae2e3155b7a New module 'progname'. Bruno Haible <bruno@clisp.org> parents: diff changeset	20
fae2e3155b7a New module 'progname'. Bruno Haible <bruno@clisp.org> parents: diff changeset	21 /* Specification. */
7470 7138ae14facc Make it possible to #define set_program_name to an alias. Bruno Haible <bruno@clisp.org> parents: 7304 diff changeset	22 #undef ENABLE_RELOCATABLE /* avoid defining set_program_name as a macro */
4603 fae2e3155b7a New module 'progname'. Bruno Haible <bruno@clisp.org> parents: diff changeset	23 #include "progname.h"
fae2e3155b7a New module 'progname'. Bruno Haible <bruno@clisp.org> parents: diff changeset	24
11897 341123ec9461 progname: also set global program_invocation_name, when possible. Jim Meyering <meyering@redhat.com> parents: 11011 diff changeset	25 #include <errno.h> /* get program_invocation_name declaration */
12395 9f528fc7a798 prognam: Add diagnostic. Bruno Haible <bruno@clisp.org> parents: 12386 diff changeset	26 #include <stdio.h>
9f528fc7a798 prognam: Add diagnostic. Bruno Haible <bruno@clisp.org> parents: 12386 diff changeset	27 #include <stdlib.h>
4603 fae2e3155b7a New module 'progname'. Bruno Haible <bruno@clisp.org> parents: diff changeset	28 #include <string.h>
fae2e3155b7a New module 'progname'. Bruno Haible <bruno@clisp.org> parents: diff changeset	29
fae2e3155b7a New module 'progname'. Bruno Haible <bruno@clisp.org> parents: diff changeset	30
fae2e3155b7a New module 'progname'. Bruno Haible <bruno@clisp.org> parents: diff changeset	31 /* String containing name the program is called with.
fae2e3155b7a New module 'progname'. Bruno Haible <bruno@clisp.org> parents: diff changeset	32 To be initialized by main(). */
5630 bff122f8ce16 Fix a link error on MacOS X. Bruno Haible <bruno@clisp.org> parents: 4606 diff changeset	33 const char *program_name = NULL;
4603 fae2e3155b7a New module 'progname'. Bruno Haible <bruno@clisp.org> parents: diff changeset	34
12386 8fd02a53bfe5 progname: Clarify specification. Bruno Haible <bruno@clisp.org> parents: 12113 diff changeset	35 /* Set program_name, based on argv[0].
8fd02a53bfe5 progname: Clarify specification. Bruno Haible <bruno@clisp.org> parents: 12113 diff changeset	36 argv0 must be a string allocated with indefinite extent, and must not be
8fd02a53bfe5 progname: Clarify specification. Bruno Haible <bruno@clisp.org> parents: 12113 diff changeset	37 modified after this call. */
4603 fae2e3155b7a New module 'progname'. Bruno Haible <bruno@clisp.org> parents: diff changeset	38 void
fae2e3155b7a New module 'progname'. Bruno Haible <bruno@clisp.org> parents: diff changeset	39 set_program_name (const char *argv0)
fae2e3155b7a New module 'progname'. Bruno Haible <bruno@clisp.org> parents: diff changeset	40 {
fae2e3155b7a New module 'progname'. Bruno Haible <bruno@clisp.org> parents: diff changeset	41 /* libtool creates a temporary executable whose name is sometimes prefixed
fae2e3155b7a New module 'progname'. Bruno Haible <bruno@clisp.org> parents: diff changeset	42 with "lt-" (depends on the platform). It also makes argv[0] absolute.
11011 0b99e0a3b918 Add more comments. Bruno Haible <bruno@clisp.org> parents: 9577 diff changeset	43 But the name of the temporary executable is a detail that should not be
0b99e0a3b918 Add more comments. Bruno Haible <bruno@clisp.org> parents: 9577 diff changeset	44 visible to the end user and to the test suite.
4603 fae2e3155b7a New module 'progname'. Bruno Haible <bruno@clisp.org> parents: diff changeset	45 Remove this "<dirname>/.libs/" or "<dirname>/.libs/lt-" prefix here. */
fae2e3155b7a New module 'progname'. Bruno Haible <bruno@clisp.org> parents: diff changeset	46 const char *slash;
fae2e3155b7a New module 'progname'. Bruno Haible <bruno@clisp.org> parents: diff changeset	47 const char *base;
fae2e3155b7a New module 'progname'. Bruno Haible <bruno@clisp.org> parents: diff changeset	48
12395 9f528fc7a798 prognam: Add diagnostic. Bruno Haible <bruno@clisp.org> parents: 12386 diff changeset	49 /* Sanity check. POSIX requires the invoking process to pass a non-NULL
9f528fc7a798 prognam: Add diagnostic. Bruno Haible <bruno@clisp.org> parents: 12386 diff changeset	50 argv[0]. */
9f528fc7a798 prognam: Add diagnostic. Bruno Haible <bruno@clisp.org> parents: 12386 diff changeset	51 if (argv0 == NULL)
9f528fc7a798 prognam: Add diagnostic. Bruno Haible <bruno@clisp.org> parents: 12386 diff changeset	52 {
9f528fc7a798 prognam: Add diagnostic. Bruno Haible <bruno@clisp.org> parents: 12386 diff changeset	53 /* It's a bug in the invoking program. Help diagnosing it. */
9f528fc7a798 prognam: Add diagnostic. Bruno Haible <bruno@clisp.org> parents: 12386 diff changeset	54 fputs ("A NULL argv[0] was passed through an exec system call.\n",
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12395 diff changeset	55 stderr);
12395 9f528fc7a798 prognam: Add diagnostic. Bruno Haible <bruno@clisp.org> parents: 12386 diff changeset	56 abort ();
9f528fc7a798 prognam: Add diagnostic. Bruno Haible <bruno@clisp.org> parents: 12386 diff changeset	57 }
9f528fc7a798 prognam: Add diagnostic. Bruno Haible <bruno@clisp.org> parents: 12386 diff changeset	58
4603 fae2e3155b7a New module 'progname'. Bruno Haible <bruno@clisp.org> parents: diff changeset	59 slash = strrchr (argv0, '/');
fae2e3155b7a New module 'progname'. Bruno Haible <bruno@clisp.org> parents: diff changeset	60 base = (slash != NULL ? slash + 1 : argv0);
9539 97082c49805f Work around circular library issue when cross-compiling. Eric Blake <ebb9@byu.net> parents: 9309 diff changeset	61 if (base - argv0 >= 7 && strncmp (base - 7, "/.libs/", 7) == 0)
9577 0b6c2edb43b3 Don't strip off a leading "lt-" prefix outside a .libs directory. Bruno Haible <bruno@clisp.org> parents: 9539 diff changeset	62 {
0b6c2edb43b3 Don't strip off a leading "lt-" prefix outside a .libs directory. Bruno Haible <bruno@clisp.org> parents: 9539 diff changeset	63 argv0 = base;
0b6c2edb43b3 Don't strip off a leading "lt-" prefix outside a .libs directory. Bruno Haible <bruno@clisp.org> parents: 9539 diff changeset	64 if (strncmp (base, "lt-", 3) == 0)
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12395 diff changeset	65 {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12395 diff changeset	66 argv0 = base + 3;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12395 diff changeset	67 /* On glibc systems, remove the "lt-" prefix from the variable
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12395 diff changeset	68 program_invocation_short_name. */
12113 281617eccdf5 Remove the "lt-" prefix from program_invocation_short_name. Bruno Haible <bruno@clisp.org> parents: 12112 diff changeset	69 #if HAVE_DECL_PROGRAM_INVOCATION_SHORT_NAME
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12395 diff changeset	70 program_invocation_short_name = (char *) argv0;
12113 281617eccdf5 Remove the "lt-" prefix from program_invocation_short_name. Bruno Haible <bruno@clisp.org> parents: 12112 diff changeset	71 #endif
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12395 diff changeset	72 }
9577 0b6c2edb43b3 Don't strip off a leading "lt-" prefix outside a .libs directory. Bruno Haible <bruno@clisp.org> parents: 9539 diff changeset	73 }
11011 0b99e0a3b918 Add more comments. Bruno Haible <bruno@clisp.org> parents: 9577 diff changeset	74
0b99e0a3b918 Add more comments. Bruno Haible <bruno@clisp.org> parents: 9577 diff changeset	75 /* But don't strip off a leading <dirname>/ in general, because when the user
0b99e0a3b918 Add more comments. Bruno Haible <bruno@clisp.org> parents: 9577 diff changeset	76 runs
0b99e0a3b918 Add more comments. Bruno Haible <bruno@clisp.org> parents: 9577 diff changeset	77 /some/hidden/place/bin/cp foo foo
0b99e0a3b918 Add more comments. Bruno Haible <bruno@clisp.org> parents: 9577 diff changeset	78 he should get the error message
0b99e0a3b918 Add more comments. Bruno Haible <bruno@clisp.org> parents: 9577 diff changeset	79 /some/hidden/place/bin/cp: `foo' and `foo' are the same file
0b99e0a3b918 Add more comments. Bruno Haible <bruno@clisp.org> parents: 9577 diff changeset	80 not
0b99e0a3b918 Add more comments. Bruno Haible <bruno@clisp.org> parents: 9577 diff changeset	81 cp: `foo' and `foo' are the same file
0b99e0a3b918 Add more comments. Bruno Haible <bruno@clisp.org> parents: 9577 diff changeset	82 */
0b99e0a3b918 Add more comments. Bruno Haible <bruno@clisp.org> parents: 9577 diff changeset	83
4603 fae2e3155b7a New module 'progname'. Bruno Haible <bruno@clisp.org> parents: diff changeset	84 program_name = argv0;
11897 341123ec9461 progname: also set global program_invocation_name, when possible. Jim Meyering <meyering@redhat.com> parents: 11011 diff changeset	85
12112 e375e45551a4 Fix a misleading comment. Bruno Haible <bruno@clisp.org> parents: 11897 diff changeset	86 /* On glibc systems, the error() function comes from libc and uses the
e375e45551a4 Fix a misleading comment. Bruno Haible <bruno@clisp.org> parents: 11897 diff changeset	87 variable program_invocation_name, not program_name. So set this variable
e375e45551a4 Fix a misleading comment. Bruno Haible <bruno@clisp.org> parents: 11897 diff changeset	88 as well. */
11897 341123ec9461 progname: also set global program_invocation_name, when possible. Jim Meyering <meyering@redhat.com> parents: 11011 diff changeset	89 #if HAVE_DECL_PROGRAM_INVOCATION_NAME
341123ec9461 progname: also set global program_invocation_name, when possible. Jim Meyering <meyering@redhat.com> parents: 11011 diff changeset	90 program_invocation_name = (char *) argv0;
341123ec9461 progname: also set global program_invocation_name, when possible. Jim Meyering <meyering@redhat.com> parents: 11011 diff changeset	91 #endif
4603 fae2e3155b7a New module 'progname'. Bruno Haible <bruno@clisp.org> parents: diff changeset	92 }

Mercurial > hg > octave-kai > gnulib-hg

annotate lib/progname.c @ 17429:88b6febaed97