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3685de750e
Renaming over existing files needs additional care to restore permissions and ownership, which may not always succeed. Additionally, other properties of the file such as extended attributes may be lost, making the operation flaky. For predictable results, resort to rename() only if the file does not exist, otherwise copy the file contents into the existing file. This ensures that no additional tricks are needed to retain file properties. This also allows dropping of the redundant set_times on the tmpfile in objcopy/strip since now we no longer rename over existing files. binutils/ * ar.c (write_archive): Remove TARGET_STAT. Adjust call to SMART_RENAME. * arsup.c (ar_save): Likewise. * objcopy (strip_main): Don't copy TMPFD. Don't set times on temporary file and adjust call to SMART_RENAME. (copy_main): Likewise. * rename.c [!S_ISLNK]: Remove definitions. (try_preserve_permissions): Remove function. (smart_rename): Remove FD, PRESERVE_DATES arguments. Use rename system call only if TO does not exist. * bucomm.h (smart_rename): Adjust declaration.
83 lines
2.3 KiB
C
83 lines
2.3 KiB
C
/* bucomm.h -- binutils common include file.
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Copyright (C) 1991-2021 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 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 _BUCOMM_H
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#define _BUCOMM_H
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/* In bucomm.c. */
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/* Return the filename in a static buffer. */
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const char *bfd_get_archive_filename (const bfd *);
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void bfd_nonfatal (const char *);
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void bfd_nonfatal_message (const char *, const bfd *, const asection *,
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const char *, ...);
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void bfd_fatal (const char *) ATTRIBUTE_NORETURN;
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void report (const char *, va_list) ATTRIBUTE_PRINTF(1,0);
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void fatal (const char *, ...) ATTRIBUTE_PRINTF_1 ATTRIBUTE_NORETURN;
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void non_fatal (const char *, ...) ATTRIBUTE_PRINTF_1;
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void set_default_bfd_target (void);
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void list_matching_formats (char **);
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void list_supported_targets (const char *, FILE *);
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void list_supported_architectures (const char *, FILE *);
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int display_info (void);
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void print_arelt_descr (FILE *, bfd *, bfd_boolean, bfd_boolean);
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char *make_tempname (const char *, int *);
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char *make_tempdir (const char *);
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bfd_vma parse_vma (const char *, const char *);
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off_t get_file_size (const char *);
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bfd_boolean is_valid_archive_path (char const *);
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extern char *program_name;
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/* In filemode.c. */
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void mode_string (unsigned long, char *);
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/* In version.c. */
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extern void print_version (const char *);
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/* In rename.c. */
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extern void set_times (const char *, const struct stat *);
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extern int smart_rename (const char *, const char *, struct stat *);
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/* In libiberty. */
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void *xmalloc (size_t);
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void *xrealloc (void *, size_t);
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#endif /* _BUCOMM_H */
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