f9c026a85b
* configure.in: Check for the mkstemp and mkdtemp functions. * configure: Regenerate. * config.in (HAVE_MKDTEMP): New potential define. (MAKE_MKSTEMP): Likewise. * bucomm.c (make_tempname): Use mkstemp if it is available. * make_tempdir): New function: Create a temporary directory using mkdtemp, if it is available. * bucomm.h (make_tempdir): New prototype. * objcopy.c (copy_archive): Use make_tempdir if it is available. (strip_main): Produce an warning message if a temporary file could not be (copy_main): Likewise. * ar.c (write_archive): Likewise.
571 lines
13 KiB
C
571 lines
13 KiB
C
/* bucomm.c -- Bin Utils COMmon code.
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Copyright 1991, 1992, 1993, 1994, 1995, 1997, 1998, 2000, 2001, 2002, 2003, 2006
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Free Software Foundation, Inc.
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This file is part of GNU Binutils.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
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02110-1301, USA. */
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/* We might put this in a library someday so it could be dynamically
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loaded, but for now it's not necessary. */
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#include "bfd.h"
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#include "bfdver.h"
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#include "libiberty.h"
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#include "bucomm.h"
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#include "filenames.h"
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#include "libbfd.h"
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#include <sys/stat.h>
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#include <time.h> /* ctime, maybe time_t */
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#include <assert.h>
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#ifndef HAVE_TIME_T_IN_TIME_H
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#ifndef HAVE_TIME_T_IN_TYPES_H
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typedef long time_t;
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#endif
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#endif
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static const char * endian_string (enum bfd_endian);
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static int display_target_list (void);
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static int display_info_table (int, int);
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static int display_target_tables (void);
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/* Error reporting. */
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char *program_name;
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void
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bfd_nonfatal (const char *string)
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{
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const char *errmsg = bfd_errmsg (bfd_get_error ());
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if (string)
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fprintf (stderr, "%s: %s: %s\n", program_name, string, errmsg);
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else
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fprintf (stderr, "%s: %s\n", program_name, errmsg);
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}
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void
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bfd_fatal (const char *string)
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{
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bfd_nonfatal (string);
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xexit (1);
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}
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void
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report (const char * format, va_list args)
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{
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fprintf (stderr, "%s: ", program_name);
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vfprintf (stderr, format, args);
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putc ('\n', stderr);
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}
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void
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fatal VPARAMS ((const char *format, ...))
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{
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VA_OPEN (args, format);
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VA_FIXEDARG (args, const char *, format);
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report (format, args);
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VA_CLOSE (args);
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xexit (1);
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}
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void
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non_fatal VPARAMS ((const char *format, ...))
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{
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VA_OPEN (args, format);
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VA_FIXEDARG (args, const char *, format);
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report (format, args);
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VA_CLOSE (args);
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}
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/* Set the default BFD target based on the configured target. Doing
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this permits the binutils to be configured for a particular target,
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and linked against a shared BFD library which was configured for a
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different target. */
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void
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set_default_bfd_target (void)
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{
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/* The macro TARGET is defined by Makefile. */
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const char *target = TARGET;
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if (! bfd_set_default_target (target))
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fatal (_("can't set BFD default target to `%s': %s"),
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target, bfd_errmsg (bfd_get_error ()));
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}
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/* After a FALSE return from bfd_check_format_matches with
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bfd_get_error () == bfd_error_file_ambiguously_recognized, print
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the possible matching targets. */
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void
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list_matching_formats (char **p)
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{
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fprintf (stderr, _("%s: Matching formats:"), program_name);
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while (*p)
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fprintf (stderr, " %s", *p++);
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fputc ('\n', stderr);
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}
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/* List the supported targets. */
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void
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list_supported_targets (const char *name, FILE *f)
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{
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int t;
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const char **targ_names = bfd_target_list ();
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if (name == NULL)
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fprintf (f, _("Supported targets:"));
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else
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fprintf (f, _("%s: supported targets:"), name);
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for (t = 0; targ_names[t] != NULL; t++)
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fprintf (f, " %s", targ_names[t]);
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fprintf (f, "\n");
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free (targ_names);
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}
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/* List the supported architectures. */
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void
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list_supported_architectures (const char *name, FILE *f)
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{
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const char **arch;
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if (name == NULL)
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fprintf (f, _("Supported architectures:"));
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else
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fprintf (f, _("%s: supported architectures:"), name);
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for (arch = bfd_arch_list (); *arch; arch++)
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fprintf (f, " %s", *arch);
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fprintf (f, "\n");
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}
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/* The length of the longest architecture name + 1. */
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#define LONGEST_ARCH sizeof ("powerpc:common")
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static const char *
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endian_string (enum bfd_endian endian)
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{
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switch (endian)
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{
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case BFD_ENDIAN_BIG: return "big endian";
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case BFD_ENDIAN_LITTLE: return "little endian";
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default: return "endianness unknown";
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}
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}
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/* List the targets that BFD is configured to support, each followed
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by its endianness and the architectures it supports. */
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static int
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display_target_list (void)
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{
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char *dummy_name;
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int t;
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int ret = 1;
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dummy_name = make_temp_file (NULL);
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for (t = 0; bfd_target_vector[t]; t++)
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{
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const bfd_target *p = bfd_target_vector[t];
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bfd *abfd = bfd_openw (dummy_name, p->name);
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enum bfd_architecture a;
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printf ("%s\n (header %s, data %s)\n", p->name,
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endian_string (p->header_byteorder),
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endian_string (p->byteorder));
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if (abfd == NULL)
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{
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bfd_nonfatal (dummy_name);
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ret = 0;
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continue;
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}
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if (! bfd_set_format (abfd, bfd_object))
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{
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if (bfd_get_error () != bfd_error_invalid_operation)
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{
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bfd_nonfatal (p->name);
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ret = 0;
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}
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bfd_close_all_done (abfd);
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continue;
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}
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for (a = bfd_arch_obscure + 1; a < bfd_arch_last; a++)
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if (bfd_set_arch_mach (abfd, (enum bfd_architecture) a, 0))
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printf (" %s\n",
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bfd_printable_arch_mach ((enum bfd_architecture) a, 0));
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bfd_close_all_done (abfd);
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}
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unlink (dummy_name);
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free (dummy_name);
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return ret;
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}
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/* Print a table showing which architectures are supported for entries
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FIRST through LAST-1 of bfd_target_vector (targets across,
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architectures down). */
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static int
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display_info_table (int first, int last)
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{
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int t;
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int ret = 1;
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char *dummy_name;
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enum bfd_architecture a;
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/* Print heading of target names. */
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printf ("\n%*s", (int) LONGEST_ARCH, " ");
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for (t = first; t < last && bfd_target_vector[t]; t++)
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printf ("%s ", bfd_target_vector[t]->name);
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putchar ('\n');
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dummy_name = make_temp_file (NULL);
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for (a = bfd_arch_obscure + 1; a < bfd_arch_last; a++)
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if (strcmp (bfd_printable_arch_mach (a, 0), "UNKNOWN!") != 0)
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{
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printf ("%*s ", (int) LONGEST_ARCH - 1,
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bfd_printable_arch_mach (a, 0));
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for (t = first; t < last && bfd_target_vector[t]; t++)
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{
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const bfd_target *p = bfd_target_vector[t];
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bfd_boolean ok = TRUE;
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bfd *abfd = bfd_openw (dummy_name, p->name);
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if (abfd == NULL)
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{
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bfd_nonfatal (p->name);
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ret = 0;
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ok = FALSE;
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}
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if (ok)
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{
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if (! bfd_set_format (abfd, bfd_object))
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{
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if (bfd_get_error () != bfd_error_invalid_operation)
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{
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bfd_nonfatal (p->name);
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ret = 0;
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}
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ok = FALSE;
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}
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}
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if (ok)
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{
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if (! bfd_set_arch_mach (abfd, a, 0))
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ok = FALSE;
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}
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if (ok)
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printf ("%s ", p->name);
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else
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{
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int l = strlen (p->name);
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while (l--)
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putchar ('-');
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putchar (' ');
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}
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if (abfd != NULL)
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bfd_close_all_done (abfd);
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}
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putchar ('\n');
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}
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unlink (dummy_name);
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free (dummy_name);
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return ret;
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}
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/* Print tables of all the target-architecture combinations that
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BFD has been configured to support. */
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static int
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display_target_tables (void)
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{
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int t;
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int columns;
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int ret = 1;
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char *colum;
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columns = 0;
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colum = getenv ("COLUMNS");
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if (colum != NULL)
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columns = atoi (colum);
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if (columns == 0)
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columns = 80;
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t = 0;
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while (bfd_target_vector[t] != NULL)
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{
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int oldt = t, wid;
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wid = LONGEST_ARCH + strlen (bfd_target_vector[t]->name) + 1;
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++t;
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while (wid < columns && bfd_target_vector[t] != NULL)
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{
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int newwid;
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newwid = wid + strlen (bfd_target_vector[t]->name) + 1;
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if (newwid >= columns)
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break;
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wid = newwid;
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++t;
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}
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if (! display_info_table (oldt, t))
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ret = 0;
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}
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return ret;
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}
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int
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display_info (void)
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{
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printf (_("BFD header file version %s\n"), BFD_VERSION_STRING);
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if (! display_target_list () || ! display_target_tables ())
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return 1;
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else
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return 0;
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}
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/* Display the archive header for an element as if it were an ls -l listing:
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Mode User\tGroup\tSize\tDate Name */
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void
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print_arelt_descr (FILE *file, bfd *abfd, bfd_boolean verbose)
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{
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struct stat buf;
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if (verbose)
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{
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if (bfd_stat_arch_elt (abfd, &buf) == 0)
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{
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char modebuf[11];
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char timebuf[40];
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time_t when = buf.st_mtime;
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const char *ctime_result = (const char *) ctime (&when);
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/* POSIX format: skip weekday and seconds from ctime output. */
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sprintf (timebuf, "%.12s %.4s", ctime_result + 4, ctime_result + 20);
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mode_string (buf.st_mode, modebuf);
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modebuf[10] = '\0';
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/* POSIX 1003.2/D11 says to skip first character (entry type). */
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fprintf (file, "%s %ld/%ld %6ld %s ", modebuf + 1,
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(long) buf.st_uid, (long) buf.st_gid,
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(long) buf.st_size, timebuf);
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}
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}
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fprintf (file, "%s\n", bfd_get_filename (abfd));
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}
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/* Return the name of a created temporary file in the same directory as FILENAME. */
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char *
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make_tempname (char *filename)
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{
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#if defined(HAVE_MKSTEMP)
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static char template[] = "stXXXXXXXXXX";
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int fd;
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#else
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static char template[] = "stXXXXXX";
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#endif
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char *tmpname;
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char *slash = strrchr (filename, '/');
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#ifdef HAVE_DOS_BASED_FILE_SYSTEM
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{
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/* We could have foo/bar\\baz, or foo\\bar, or d:bar. */
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char *bslash = strrchr (filename, '\\');
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if (slash == NULL || (bslash != NULL && bslash > slash))
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slash = bslash;
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if (slash == NULL && filename[0] != '\0' && filename[1] == ':')
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slash = filename + 1;
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}
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#endif
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if (slash != (char *) NULL)
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{
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char c;
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c = *slash;
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*slash = 0;
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tmpname = xmalloc (strlen (filename) + sizeof (template) + 2);
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strcpy (tmpname, filename);
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#ifdef HAVE_DOS_BASED_FILE_SYSTEM
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/* If tmpname is "X:", appending a slash will make it a root
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directory on drive X, which is NOT the same as the current
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directory on drive X. */
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if (tmpname[1] == ':' && tmpname[2] == '\0')
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strcat (tmpname, ".");
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#endif
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strcat (tmpname, "/");
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strcat (tmpname, template);
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#if defined(HAVE_MKSTEMP)
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fd = mkstemp (tmpname);
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#else
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mktemp (tmpname);
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#endif
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*slash = c;
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}
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else
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{
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tmpname = xmalloc (sizeof (template));
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strcpy (tmpname, template);
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#if defined(HAVE_MKSTEMP)
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fd = mkstemp (tmpname);
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#endif
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}
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#if defined(HAVE_MKSTEMP)
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if (fd == -1)
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return NULL;
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close(fd);
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#endif
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return tmpname;
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}
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#if defined(HAVE_MKDTEMP)
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/* Return the name of a created temporary directory inside the directory containing FILENAME. */
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char *
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make_tempdir (char *filename)
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{
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static char template[] = "stXXXXXXXXXX";
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char *tmpname;
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char *slash = strrchr (filename, '/');
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if (slash != (char *) NULL)
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{
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char c;
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c = *slash;
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*slash = 0;
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tmpname = xmalloc (strlen (filename) + sizeof (template) + 1);
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strcpy (tmpname, filename);
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#ifdef HAVE_DOS_BASED_FILE_SYSTEM
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/* If tmpname is "X:", appending a slash will make it a root
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directory on drive X, which is NOT the same as the current
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directory on drive X. */
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if (tmpname[1] == ':' && tmpname[2] == '\0')
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strcat (tmpname, ".");
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#endif
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strcat (tmpname, "/");
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strcat (tmpname, template);
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mkdtemp (tmpname);
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*slash = c;
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}
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else
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{
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tmpname = xmalloc (sizeof (template));
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strcpy (tmpname, template);
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mkdtemp (tmpname);
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}
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return tmpname;
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}
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#endif /* HAVE_MKDTEMP */
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/* Parse a string into a VMA, with a fatal error if it can't be
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parsed. */
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bfd_vma
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parse_vma (const char *s, const char *arg)
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{
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bfd_vma ret;
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const char *end;
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ret = bfd_scan_vma (s, &end, 0);
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if (*end != '\0')
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fatal (_("%s: bad number: %s"), arg, s);
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return ret;
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}
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||
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||
/* Returns the size of the named file. If the file does not
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exist, or if it is not a real file, then a suitable non-fatal
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||
error message is printed and zero is returned. */
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||
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||
off_t
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get_file_size (const char * file_name)
|
||
{
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struct stat statbuf;
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|
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if (stat (file_name, &statbuf) < 0)
|
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{
|
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if (errno == ENOENT)
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non_fatal (_("'%s': No such file"), file_name);
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else
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non_fatal (_("Warning: could not locate '%s'. reason: %s"),
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file_name, strerror (errno));
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}
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else if (! S_ISREG (statbuf.st_mode))
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non_fatal (_("Warning: '%s' is not an ordinary file"), file_name);
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else
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return statbuf.st_size;
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return 0;
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}
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/* Return the filename in a static buffer. */
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const char *
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bfd_get_archive_filename (bfd *abfd)
|
||
{
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static size_t curr = 0;
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static char *buf;
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size_t needed;
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assert (abfd != NULL);
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if (!abfd->my_archive)
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return bfd_get_filename (abfd);
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needed = (strlen (bfd_get_filename (abfd->my_archive))
|
||
+ strlen (bfd_get_filename (abfd)) + 3);
|
||
if (needed > curr)
|
||
{
|
||
if (curr)
|
||
free (buf);
|
||
curr = needed + (needed >> 1);
|
||
buf = bfd_malloc (curr);
|
||
/* If we can't malloc, fail safe by returning just the file name.
|
||
This function is only used when building error messages. */
|
||
if (!buf)
|
||
{
|
||
curr = 0;
|
||
return bfd_get_filename (abfd);
|
||
}
|
||
}
|
||
sprintf (buf, "%s(%s)", bfd_get_filename (abfd->my_archive),
|
||
bfd_get_filename (abfd));
|
||
return buf;
|
||
}
|