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c42c71a152
This patch makes use of the temp file descriptor in smart_rename rather than reopening the file. I don't believe there is a security issue in reopening the file, but this way is one less directory operation. The patch also attempts to preserve S_ISUID and S_ISGID. PR 27456 * bucomm.h (smart_rename): Update prototype. * rename.c (smart_rename): Add fromfd and preserve_dates params. Pass fromfd and target_stat to simple_copy. Call set_times when preserve_dates. (simple_copy): Accept fromfd rather than from filename. Add target_stat param. Rewind fromfd rather than opening. Open "to" file without O_CREAT. Try to preserve S_ISUID and S_ISGID. * ar.c (write_archive): Rename ofd to tmpfd. Dup tmpfd before closing output temp file, and pass tmpfd to smart_rename. * arsup.c (temp_fd): Rename from real_fd. (ar_save): Dup temp_fd and pass to smart_rename. * objcopy.c (strip_main, copy_main): Likewise, and pass preserve_dates.
84 lines
2.3 KiB
C
84 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 *, int,
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struct stat *, bfd_boolean);
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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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