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Replace most calls to open by a new wrapper.

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* common/sysutils.c (any8bitchar) [W32]: New.
(gnupg_open): New.  Replace most calls to open by this.
* common/iobuf.c (any8bitchar) [W32]: New.
(direct_open) [W32]: Use CreateFileW if needed.
--

This is yet another step for full Unicode support on Windows.

GnuPG-bug-id: 5098
This commit is contained in:
Werner Koch 2020-10-20 14:08:35 +02:00
parent b47c355b18
commit 4dcef0e178
No known key found for this signature in database
GPG Key ID: E3FDFF218E45B72B
8 changed files with 79 additions and 26 deletions
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25
common/iobuf.c
View File

@ -198,6 +198,19 @@ fd_cache_strcmp (const char *a, const char *b)
#endif
}
#ifdef HAVE_W32_SYSTEM
static int
any8bitchar (const char *string)
{
if (string)
for ( ; *string; string++)
if ((*string & 0x80))
return 1;
return 0;
}
#endif /*HAVE_W32_SYSTEM*/
/*
* Invalidate (i.e. close) a cached iobuf
*/
@ -299,21 +312,23 @@ direct_open (const char *fname, const char *mode, int mode700)
sm = FILE_SHARE_READ;
}
#ifdef HAVE_W32CE_SYSTEM
/* We use the Unicode version of the function only if needed to
* avoid an extra conversion step. */
if (any8bitchar (fname))
{
wchar_t *wfname = utf8_to_wchar (fname);
if (wfname)
{
hfile = CreateFile (wfname, da, sm, NULL, cd,
hfile = CreateFileW (wfname, da, sm, NULL, cd,
FILE_ATTRIBUTE_NORMAL, NULL);
xfree (wfname);
}
else
hfile = INVALID_HANDLE_VALUE;
}
#else
hfile = CreateFile (fname, da, sm, NULL, cd, FILE_ATTRIBUTE_NORMAL, NULL);
#endif
else
hfile = CreateFileA (fname, da, sm, NULL, cd, FILE_ATTRIBUTE_NORMAL, NULL);
return hfile;
#else /*!HAVE_W32_SYSTEM*/

36
common/sysutils.c
View File

@ -182,6 +182,18 @@ enable_core_dumps (void)
#endif
}
#ifdef HAVE_W32_SYSTEM
static int
any8bitchar (const char *string)
{
if (string)
for ( ; *string; string++)
if ((*string & 0x80))
return 1;
return 0;
}
#endif /*HAVE_W32_SYSTEM*/
/* Allow the use of special "-&nnn" style file names. */
void
@ -1066,6 +1078,30 @@ gnupg_access (const char *name, int mode)
#endif
}
/* A wrapper around open to handle Unicode file names under Windows. */
int
gnupg_open (const char *name, int flags, unsigned int mode)
{
#ifdef HAVE_W32_SYSTEM
if (any8bitchar (name))
{
wchar_t *wname;
int ret;
wname = utf8_to_wchar (name);
if (!wname)
return -1;
ret = _wopen (wname, flags, mode);
xfree (wname);
return ret;
}
else
return open (name, flags, mode);
#else
return open (name, flags, mode);
#endif
}
/* Try to set an envvar. Print only a notice on error. */
#ifndef HAVE_W32_SYSTEM

1
common/sysutils.h
View File

@ -74,6 +74,7 @@ int gnupg_setenv (const char *name, const char *value, int overwrite);
int gnupg_unsetenv (const char *name);
char *gnupg_getcwd (void);
gpg_err_code_t gnupg_access (const char *name, int mode);
int gnupg_open (const char *name, int flags, unsigned int mode);
gpg_error_t gnupg_chuid (const char *user, int silent);
char *gnupg_get_socket_name (int fd);
int gnupg_fd_valid (int fd);

4
dirmngr/crlcache.c
View File

@ -1142,7 +1142,7 @@ lock_db_file (crl_cache_t cache, crl_cache_entry_t entry)
xfree (fname);
return NULL;
}
fd = open (fname, O_RDONLY | O_BINARY);
fd = gnupg_open (fname, O_RDONLY | O_BINARY, 0);
if (fd == -1)
{
log_error (_("error opening cache file '%s': %s\n"),
@ -2226,7 +2226,7 @@ crl_cache_insert (ctrl_t ctrl, const char *url, ksba_reader_t reader)
}
}
fd_cdb = open (fname, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY, 0644);
fd_cdb = gnupg_open (fname, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY, 0644);
if (fd_cdb == -1)
{
err = gpg_error_from_errno (errno);

4
g10/gpg.c
View File

@ -1407,10 +1407,10 @@ open_info_file (const char *fname, int for_write, int binary)
do
{
if (for_write)
fd = open (fname, O_CREAT | O_TRUNC | O_WRONLY | binary,
fd = gnupg_open (fname, O_CREAT | O_TRUNC | O_WRONLY | binary,
S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP);
else
fd = open (fname, O_RDONLY | binary);
fd = gnupg_open (fname, O_RDONLY | binary, 0);
}
while (fd == -1 && errno == EINTR);
/* } */

6
g10/tdbio.c
View File

@ -753,7 +753,7 @@ tdbio_set_dbname (ctrl_t ctrl, const char *new_dbname,
log_fatal (_("can't create '%s': %s\n"), fname, strerror (errno));
es_fclose (fp);
db_fd = open (db_name, O_RDWR | MY_O_BINARY);
db_fd = gnupg_open (db_name, O_RDWR | MY_O_BINARY, 0);
if (db_fd == -1)
log_fatal (_("can't open '%s': %s\n"), db_name, strerror (errno));
@ -813,7 +813,7 @@ open_db ()
(int)prevrc, (int)GetLastError ());
}
#else /*!HAVE_W32CE_SYSTEM*/
db_fd = open (db_name, O_RDWR | MY_O_BINARY );
db_fd = gnupg_open (db_name, O_RDWR | MY_O_BINARY, 0);
if (db_fd == -1 && (errno == EACCES
#ifdef EROFS
|| errno == EROFS
@ -821,7 +821,7 @@ open_db ()
)
) {
/* Take care of read-only trustdbs. */
db_fd = open (db_name, O_RDONLY | MY_O_BINARY );
db_fd = gnupg_open (db_name, O_RDONLY | MY_O_BINARY, 0);
if (db_fd != -1 && !opt.quiet)
log_info (_("Note: trustdb not writable\n"));
}

2
sm/gpgsm.c
View File

@ -2324,7 +2324,7 @@ open_read (const char *filename)
fd = check_special_filename (filename, 0, 0);
if (fd != -1)
return fd;
fd = open (filename, O_RDONLY | O_BINARY);
fd = gnupg_open (filename, O_RDONLY | O_BINARY, 0);
if (fd == -1)
{
log_error (_("can't open '%s': %s\n"), filename, strerror (errno));

5
tools/gpgconf-comp.c
View File

@ -2226,8 +2226,9 @@ change_options_program (gc_component_id_t component,
*dest_filenamep = dest_filename;
*orig_filenamep = orig_filename;
/* Use open() so that we can use O_EXCL. */
fd = open (src_filename, O_CREAT | O_EXCL | O_WRONLY, 0644);
/* Use open() so that we can use O_EXCL.
* FIXME: gpgrt has an x flag for quite some time now - use that. */
fd = gnupg_open (src_filename, O_CREAT | O_EXCL | O_WRONLY, 0644);
if (fd < 0)
return -1;
src_file = gpgrt_fdopen (fd, "w");