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binutils-gdb/gdbsupport/fileio.cc
Andrew Burgess 1d506c26d9 Update copyright year range in header of all files managed by GDB 
This commit is the result of the following actions:

  - Running gdb/copyright.py to update all of the copyright headers to
    include 2024,

  - Manually updating a few files the copyright.py script told me to
    update, these files had copyright headers embedded within the
    file,

  - Regenerating gdbsupport/Makefile.in to refresh it's copyright
    date,

  - Using grep to find other files that still mentioned 2023.  If
    these files were updated last year from 2022 to 2023 then I've
    updated them this year to 2024.

I'm sure I've probably missed some dates.  Feel free to fix them up as
you spot them.
2024-01-12 15:49:57 +00:00

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/* File-I/O functions for GDB, the GNU debugger.
Copyright (C) 2003-2024 Free Software Foundation, Inc.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "common-defs.h"
#include "fileio.h"
#include <sys/stat.h>
#include <fcntl.h>
/* See fileio.h. */
fileio_error
host_to_fileio_error (int error)
{
switch (error)
{
case EPERM:
return FILEIO_EPERM;
case ENOENT:
return FILEIO_ENOENT;
case EINTR:
return FILEIO_EINTR;
case EIO:
return FILEIO_EIO;
case EBADF:
return FILEIO_EBADF;
case EACCES:
return FILEIO_EACCES;
case EFAULT:
return FILEIO_EFAULT;
case EBUSY:
return FILEIO_EBUSY;
case EEXIST:
return FILEIO_EEXIST;
case ENODEV:
return FILEIO_ENODEV;
case ENOTDIR:
return FILEIO_ENOTDIR;
case EISDIR:
return FILEIO_EISDIR;
case EINVAL:
return FILEIO_EINVAL;
case ENFILE:
return FILEIO_ENFILE;
case EMFILE:
return FILEIO_EMFILE;
case EFBIG:
return FILEIO_EFBIG;
case ENOSPC:
return FILEIO_ENOSPC;
case ESPIPE:
return FILEIO_ESPIPE;
case EROFS:
return FILEIO_EROFS;
case ENOSYS:
return FILEIO_ENOSYS;
case ENAMETOOLONG:
return FILEIO_ENAMETOOLONG;
}
return FILEIO_EUNKNOWN;
}
/* See fileio.h. */
int
fileio_error_to_host (fileio_error errnum)
{
switch (errnum)
{
case FILEIO_EPERM:
return EPERM;
case FILEIO_ENOENT:
return ENOENT;
case FILEIO_EINTR:
return EINTR;
case FILEIO_EIO:
return EIO;
case FILEIO_EBADF:
return EBADF;
case FILEIO_EACCES:
return EACCES;
case FILEIO_EFAULT:
return EFAULT;
case FILEIO_EBUSY:
return EBUSY;
case FILEIO_EEXIST:
return EEXIST;
case FILEIO_ENODEV:
return ENODEV;
case FILEIO_ENOTDIR:
return ENOTDIR;
case FILEIO_EISDIR:
return EISDIR;
case FILEIO_EINVAL:
return EINVAL;
case FILEIO_ENFILE:
return ENFILE;
case FILEIO_EMFILE:
return EMFILE;
case FILEIO_EFBIG:
return EFBIG;
case FILEIO_ENOSPC:
return ENOSPC;
case FILEIO_ESPIPE:
return ESPIPE;
case FILEIO_EROFS:
return EROFS;
case FILEIO_ENOSYS:
return ENOSYS;
case FILEIO_ENAMETOOLONG:
return ENAMETOOLONG;
}
return -1;
}
/* See fileio.h. */
int
fileio_to_host_openflags (int fileio_open_flags, int *open_flags_p)
{
int open_flags = 0;
if (fileio_open_flags & ~FILEIO_O_SUPPORTED)
return -1;
if (fileio_open_flags & FILEIO_O_CREAT)
open_flags |= O_CREAT;
if (fileio_open_flags & FILEIO_O_EXCL)
open_flags |= O_EXCL;
if (fileio_open_flags & FILEIO_O_TRUNC)
open_flags |= O_TRUNC;
if (fileio_open_flags & FILEIO_O_APPEND)
open_flags |= O_APPEND;
if (fileio_open_flags & FILEIO_O_RDONLY)
open_flags |= O_RDONLY;
if (fileio_open_flags & FILEIO_O_WRONLY)
open_flags |= O_WRONLY;
if (fileio_open_flags & FILEIO_O_RDWR)
open_flags |= O_RDWR;
/* On systems supporting binary and text mode, always open files
in binary mode. */
#ifdef O_BINARY
open_flags |= O_BINARY;
#endif
*open_flags_p = open_flags;
return 0;
}
/* See fileio.h. */
int
fileio_to_host_mode (int fileio_mode, mode_t *mode_p)
{
mode_t mode = 0;
if (fileio_mode & ~FILEIO_S_SUPPORTED)
return -1;
if (fileio_mode & FILEIO_S_IFREG)
mode |= S_IFREG;
if (fileio_mode & FILEIO_S_IFDIR)
mode |= S_IFDIR;
if (fileio_mode & FILEIO_S_IFCHR)
mode |= S_IFCHR;
if (fileio_mode & FILEIO_S_IRUSR)
mode |= S_IRUSR;
if (fileio_mode & FILEIO_S_IWUSR)
mode |= S_IWUSR;
if (fileio_mode & FILEIO_S_IXUSR)
mode |= S_IXUSR;
#ifdef S_IRGRP
if (fileio_mode & FILEIO_S_IRGRP)
mode |= S_IRGRP;
#endif
#ifdef S_IWGRP
if (fileio_mode & FILEIO_S_IWGRP)
mode |= S_IWGRP;
#endif
#ifdef S_IXGRP
if (fileio_mode & FILEIO_S_IXGRP)
mode |= S_IXGRP;
#endif
if (fileio_mode & FILEIO_S_IROTH)
mode |= S_IROTH;
#ifdef S_IWOTH
if (fileio_mode & FILEIO_S_IWOTH)
mode |= S_IWOTH;
#endif
#ifdef S_IXOTH
if (fileio_mode & FILEIO_S_IXOTH)
mode |= S_IXOTH;
#endif
*mode_p = mode;
return 0;
}
/* Convert a host-format mode_t into a bitmask of File-I/O flags. */
static LONGEST
fileio_mode_pack (mode_t mode)
{
mode_t tmode = 0;
if (S_ISREG (mode))
tmode |= FILEIO_S_IFREG;
if (S_ISDIR (mode))
tmode |= FILEIO_S_IFDIR;
if (S_ISCHR (mode))
tmode |= FILEIO_S_IFCHR;
if (mode & S_IRUSR)
tmode |= FILEIO_S_IRUSR;
if (mode & S_IWUSR)
tmode |= FILEIO_S_IWUSR;
if (mode & S_IXUSR)
tmode |= FILEIO_S_IXUSR;
#ifdef S_IRGRP
if (mode & S_IRGRP)
tmode |= FILEIO_S_IRGRP;
#endif
#ifdef S_IWGRP
if (mode & S_IWGRP)
tmode |= FILEIO_S_IWGRP;
#endif
#ifdef S_IXGRP
if (mode & S_IXGRP)
tmode |= FILEIO_S_IXGRP;
#endif
if (mode & S_IROTH)
tmode |= FILEIO_S_IROTH;
#ifdef S_IWOTH
if (mode & S_IWOTH)
tmode |= FILEIO_S_IWOTH;
#endif
#ifdef S_IXOTH
if (mode & S_IXOTH)
tmode |= FILEIO_S_IXOTH;
#endif
return tmode;
}
/* Pack a host-format mode_t into an fio_mode_t. */
static void
host_to_fileio_mode (mode_t num, fio_mode_t fnum)
{
host_to_bigendian (fileio_mode_pack (num), (char *) fnum, 4);
}
/* Pack a host-format integer into an fio_ulong_t. */
static void
host_to_fileio_ulong (LONGEST num, fio_ulong_t fnum)
{
host_to_bigendian (num, (char *) fnum, 8);
}
/* See fileio.h. */
void
host_to_fileio_stat (struct stat *st, struct fio_stat *fst)
{
LONGEST blksize;
host_to_fileio_uint ((long) st->st_dev, fst->fst_dev);
host_to_fileio_uint ((long) st->st_ino, fst->fst_ino);
host_to_fileio_mode (st->st_mode, fst->fst_mode);
host_to_fileio_uint ((long) st->st_nlink, fst->fst_nlink);
host_to_fileio_uint ((long) st->st_uid, fst->fst_uid);
host_to_fileio_uint ((long) st->st_gid, fst->fst_gid);
host_to_fileio_uint ((long) st->st_rdev, fst->fst_rdev);
host_to_fileio_ulong ((LONGEST) st->st_size, fst->fst_size);
#ifdef HAVE_STRUCT_STAT_ST_BLKSIZE
blksize = st->st_blksize;
#else
blksize = 512;
#endif
host_to_fileio_ulong (blksize, fst->fst_blksize);
#if HAVE_STRUCT_STAT_ST_BLOCKS
host_to_fileio_ulong ((LONGEST) st->st_blocks, fst->fst_blocks);
#else
/* FIXME: This is correct for DJGPP, but other systems that don't
have st_blocks, if any, might prefer 512 instead of st_blksize.
(eliz, 30-12-2003) */
host_to_fileio_ulong (((LONGEST) st->st_size + blksize - 1)
/ blksize,
fst->fst_blocks);
#endif
host_to_fileio_time (st->st_atime, fst->fst_atime);
host_to_fileio_time (st->st_mtime, fst->fst_mtime);
host_to_fileio_time (st->st_ctime, fst->fst_ctime);
}
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