27b0767593
Best practice is to not mix lseek/read with fseek/fread on the same underlying file descriptor, as not all stdio implementations will cope. Since the plugin uses lseek/read while bfd uses fseek/fread this patch reopens the file for exclusive use by the plugin rather than trying to restore the file descriptor. That allows the plugin to read the file after plugin_call_claim_file too. bfd/ PR 23254 * plugin.c (bfd_plugin_open_input): Allow for possibility of nested archives. Open file again for plugin. (try_claim): Don't save and restore file position. Close file if not claimed. * sysdep.h (O_BINARY): Define. ld/ PR 23254 * plugin.c (plugin_call_claim_file): Revert 2016-07-19 patch. (plugin_object_p): Don't dup file descriptor.
230 lines
5.1 KiB
C
230 lines
5.1 KiB
C
/* sysdep.h -- handle host dependencies for the BFD library
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Copyright (C) 1995-2018 Free Software Foundation, Inc.
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Written by Cygnus Support.
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This file is part of BFD, the Binary File Descriptor library.
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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 3 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,
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MA 02110-1301, USA. */
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#ifndef BFD_SYSDEP_H
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#define BFD_SYSDEP_H
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#ifdef PACKAGE
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#error sysdep.h must be included in lieu of config.h
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#endif
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#include "config.h"
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#include "ansidecl.h"
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#ifdef HAVE_STDDEF_H
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#include <stddef.h>
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#endif
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#include <stdio.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <errno.h>
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#if !(defined(errno) || defined(_MSC_VER) && defined(_INC_ERRNO))
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extern int errno;
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#endif
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#ifdef STRING_WITH_STRINGS
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#include <string.h>
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#include <strings.h>
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#else
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#ifdef HAVE_STRING_H
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#include <string.h>
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#else
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#ifdef HAVE_STRINGS_H
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#include <strings.h>
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#else
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extern char *strchr ();
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extern char *strrchr ();
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#endif
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#endif
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#endif
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#ifdef HAVE_STDLIB_H
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#include <stdlib.h>
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#endif
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#ifdef TIME_WITH_SYS_TIME
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#include <sys/time.h>
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#include <time.h>
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#else
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#ifdef HAVE_SYS_TIME_H
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#include <sys/time.h>
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#else
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#include <time.h>
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#endif
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#endif
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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#ifdef HAVE_SYS_RESOURCE_H
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#include <sys/resource.h>
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#endif /* HAVE_SYS_RESOURCE_H */
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#ifdef USE_BINARY_FOPEN
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#include "fopen-bin.h"
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#else
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#include "fopen-same.h"
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#endif
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#ifdef HAVE_FCNTL_H
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#include <fcntl.h>
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#else
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#ifdef HAVE_SYS_FILE_H
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#include <sys/file.h>
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#endif
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#endif
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#ifndef O_RDONLY
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#define O_RDONLY 0
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#endif
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#ifndef O_WRONLY
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#define O_WRONLY 1
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#endif
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#ifndef O_RDWR
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#define O_RDWR 2
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#endif
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#ifndef O_ACCMODE
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#define O_ACCMODE (O_RDONLY | O_WRONLY | O_RDWR)
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#endif
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/* Systems that don't already define this, don't need it. */
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#ifndef O_BINARY
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#define O_BINARY 0
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#endif
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#ifndef SEEK_SET
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#define SEEK_SET 0
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#endif
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#ifndef SEEK_CUR
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#define SEEK_CUR 1
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#endif
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#include "filenames.h"
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#if !HAVE_DECL_FFS
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extern int ffs (int);
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#endif
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#if !HAVE_DECL_FREE
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extern void free ();
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#endif
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#if !HAVE_DECL_GETENV
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extern char *getenv ();
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#endif
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#if !HAVE_DECL_MALLOC
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extern PTR malloc ();
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#endif
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#if !HAVE_DECL_REALLOC
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extern PTR realloc ();
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#endif
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#if !HAVE_DECL_STPCPY
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extern char *stpcpy (char *__dest, const char *__src);
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#endif
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#if !HAVE_DECL_STRSTR
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extern char *strstr ();
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#endif
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#ifdef HAVE_FTELLO
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#if !HAVE_DECL_FTELLO
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extern off_t ftello (FILE *stream);
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#endif
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#endif
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#ifdef HAVE_FTELLO64
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#if !HAVE_DECL_FTELLO64
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extern off64_t ftello64 (FILE *stream);
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#endif
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#endif
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#ifdef HAVE_FSEEKO
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#if !HAVE_DECL_FSEEKO
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extern int fseeko (FILE *stream, off_t offset, int whence);
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#endif
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#endif
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#ifdef HAVE_FSEEKO64
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#if !HAVE_DECL_FSEEKO64
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extern int fseeko64 (FILE *stream, off64_t offset, int whence);
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#endif
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#endif
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#if !HAVE_DECL_STRNLEN
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size_t strnlen (const char *, size_t);
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#endif
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/* Define offsetof for those systems which lack it */
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#ifndef offsetof
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#define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER)
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#endif
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#ifdef ENABLE_NLS
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# include <libintl.h>
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/* Note the redefinition of gettext and ngettext here to use PACKAGE.
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This is because the code in this directory is used to build a
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library which will be linked with code in other directories to form
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programs. We want to maintain a seperate translation file for this
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directory however, rather than being forced to merge it with that
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of any program linked to libbfd. This is a library, so it cannot
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depend on the catalog currently loaded.
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In order to do this, we have to make sure that when we extract
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messages we use the BFD domain rather than the domain of the
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program that included the bfd library, (eg OBJDUMP). Hence we use
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dgettext (PACKAGE, String) and define PACKAGE to be 'bfd'.
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(See the code in configure). */
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# undef gettext
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# define gettext(Msgid) dgettext (PACKAGE, Msgid)
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# undef ngettext
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# define ngettext(Msgid1, Msgid2, n) dngettext (PACKAGE, Msgid1, Msgid2, n)
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# define _(String) gettext (String)
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# ifdef gettext_noop
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# define N_(String) gettext_noop (String)
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# else
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# define N_(String) (String)
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# endif
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#else
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# define gettext(Msgid) (Msgid)
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# define dgettext(Domainname, Msgid) (Msgid)
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# define dcgettext(Domainname, Msgid, Category) (Msgid)
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# define ngettext(Msgid1, Msgid2, n) \
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(n == 1 ? Msgid1 : Msgid2)
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# define dngettext(Domainname, Msgid1, Msgid2, n) \
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(n == 1 ? Msgid1 : Msgid2)
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# define dcngettext(Domainname, Msgid1, Msgid2, n, Category) \
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(n == 1 ? Msgid1 : Msgid2)
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# define textdomain(Domainname) do {} while (0)
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# define bindtextdomain(Domainname, Dirname) do {} while (0)
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# define _(String) (String)
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# define N_(String) (String)
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#endif
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#endif /* ! defined (BFD_SYSDEP_H) */
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