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62daa27056
Many of GRUB's utilities don't check anywhere near all the possible write errors. For example, if grub-install runs out of space when copying a file, it won't notice. There were missing checks for the return values of write, fflush, fsync, and close (or the equivalents on other OSes), all of which must be checked. I tried to be consistent with the existing logging practices of the various hostdisk implementations, but they weren't entirely consistent to start with so I used my judgement. The result at least looks reasonable on GNU/Linux when I provoke a write error: Installing for x86_64-efi platform. grub-install: error: cannot copy `/usr/lib/grub/x86_64-efi-signed/grubx64.efi.signed' to `/boot/efi/EFI/debian/grubx64.efi': No space left on device. There are more missing checks in other utilities, but this should fix the most critical ones. Fixes Debian bug #922741. Signed-off-by: Colin Watson <cjwatson@ubuntu.com> Reviewed-by: Steve McIntyre <93sam@debian.org> Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
79 lines
2.4 KiB
C
79 lines
2.4 KiB
C
/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2010 Free Software Foundation, Inc.
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*
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* GRUB 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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*
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* GRUB 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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*
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* You should have received a copy of the GNU General Public License
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* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef GRUB_EMU_MISC_H
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#define GRUB_EMU_MISC_H 1
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#include <config.h>
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#include <stdarg.h>
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#include <stdio.h>
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#include <grub/symbol.h>
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#include <grub/types.h>
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#include <grub/misc.h>
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#include <grub/util/misc.h>
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extern int verbosity;
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extern const char *program_name;
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void grub_init_all (void);
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void grub_fini_all (void);
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void grub_find_zpool_from_dir (const char *dir,
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char **poolname, char **poolfs);
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char *grub_make_system_path_relative_to_its_root (const char *path)
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WARN_UNUSED_RESULT;
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int
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grub_util_device_is_mapped (const char *dev);
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#ifdef __MINGW32__
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#define GRUB_HOST_PRIuLONG_LONG "I64u"
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#define GRUB_HOST_PRIxLONG_LONG "I64x"
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#else
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#define GRUB_HOST_PRIuLONG_LONG "llu"
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#define GRUB_HOST_PRIxLONG_LONG "llx"
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#endif
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void * EXPORT_FUNC(xmalloc) (grub_size_t size) WARN_UNUSED_RESULT;
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void * EXPORT_FUNC(xrealloc) (void *ptr, grub_size_t size) WARN_UNUSED_RESULT;
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char * EXPORT_FUNC(xstrdup) (const char *str) WARN_UNUSED_RESULT;
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char * EXPORT_FUNC(xasprintf) (const char *fmt, ...) __attribute__ ((format (__printf__, 1, 2))) WARN_UNUSED_RESULT;
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void EXPORT_FUNC(grub_util_warn) (const char *fmt, ...) __attribute__ ((format (__printf__, 1, 2)));
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void EXPORT_FUNC(grub_util_info) (const char *fmt, ...) __attribute__ ((format (__printf__, 1, 2)));
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void EXPORT_FUNC(grub_util_error) (const char *fmt, ...) __attribute__ ((format (__printf__, 1, 2), noreturn));
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grub_uint64_t EXPORT_FUNC (grub_util_get_cpu_time_ms) (void);
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#ifdef HAVE_DEVICE_MAPPER
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int grub_device_mapper_supported (void);
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#endif
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#ifdef GRUB_BUILD
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#define grub_util_fopen fopen
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#else
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FILE *
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grub_util_fopen (const char *path, const char *mode);
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#endif
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int grub_util_file_sync (FILE *f);
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#endif /* GRUB_EMU_MISC_H */
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