/* Make sure errno contains a meaningful value on error */
static int lock_file(struct lock_file *lk, const char *path, int flags)
{
size_t pathlen = strlen(path);
if (!lock_file_list) {
/* One-time initialization */
sigchain_push_common(remove_lock_files_on_signal);
atexit(remove_lock_files_on_exit);
}
if (lk->active)
die("BUG: cannot lock_file(\"%s\") using active struct lock_file",
path);
if (!lk->on_list) {
/* Initialize *lk and add it to lock_file_list: */
lk->fd = -1;
lk->fp = NULL;
lk->active = 0;
lk->owner = 0;
strbuf_init(&lk->filename, pathlen + LOCK_SUFFIX_LEN);
lk->next = lock_file_list;
lock_file_list = lk;
lk->on_list = 1;
} else if (lk->filename.len) {
/* This shouldn't happen, but better safe than sorry. */
die("BUG: lock_file(\"%s\") called with improperly-reset lock_file object",
path);
}
if (flags & LOCK_NO_DEREF) {
strbuf_add_absolute_path(&lk->filename, path);
} else {
struct strbuf resolved_path = STRBUF_INIT;
strbuf_add(&resolved_path, path, pathlen);
resolve_symlink(&resolved_path);
strbuf_add_absolute_path(&lk->filename, resolved_path.buf);
strbuf_release(&resolved_path);
}
strbuf_addstr(&lk->filename, LOCK_SUFFIX);
lk->fd = open(lk->filename.buf, O_RDWR | O_CREAT | O_EXCL, 0666);
if (lk->fd < 0) {
strbuf_reset(&lk->filename);
return -1;
}
lk->owner = getpid();
lk->active = 1;
if (adjust_shared_perm(lk->filename.buf)) {
int save_errno = errno;
error("cannot fix permission bits on %s", lk->filename.buf);
rollback_lock_file(lk);
errno = save_errno;
return -1;
}
return lk->fd;
}
int impl_fuse_context::check_and_resolve(std::string *name) {
if (!ops_.getattr)
return -EINVAL;
struct FUSE_STAT stat = {0};
CHECKED(ops_.getattr(name->c_str(), &stat));
if (S_ISLNK(stat.st_mode))
CHECKED(resolve_symlink(*name, name));
return 0;
}
/* This returns a static buffer containing the real
* configuration file known to be used last for this minor.
* If you need the return value longer, stuff it away with strdup. */
char *lookup_resource(const char *name)
{
static char linkname[PATH_MAX];
struct stat stat_buf;
linkname_from_resource_name(linkname, name);
if (stat(linkname, &stat_buf) != 0) {
if (errno != ENOENT)
perror(linkname);
return NULL;
}
return resolve_symlink(linkname);
}
char *lookup_minor(int minor)
{
static char linkname[PATH_MAX];
struct stat stat_buf;
linkname_from_minor(linkname, minor);
if (stat(linkname, &stat_buf) != 0) {
if (errno != ENOENT)
perror(linkname);
return NULL;
}
return resolve_symlink(linkname);
}
/* Make sure errno contains a meaningful value on error */
static int lock_file(struct lock_file *lk, const char *path, int flags)
{
int fd;
struct strbuf filename = STRBUF_INIT;
strbuf_addstr(&filename, path);
if (!(flags & LOCK_NO_DEREF))
resolve_symlink(&filename);
strbuf_addstr(&filename, LOCK_SUFFIX);
fd = create_tempfile(&lk->tempfile, filename.buf);
strbuf_release(&filename);
return fd;
}
/** *******************************************************************************************************************
@brief attempt to reach controller when there are emergencies.
******************************************************************************************************************** */
static inline bool
buddy_phone_home(void)
{
buddy_path("controller.sock");
resolve_symlink();
strncpy(buddy_sockaddr.sun_path, buddy_string_buf, sizeof(buddy_sockaddr.sun_path) - 1);
buddy_sockaddr.sun_family = AF_UNIX;
buddy_ctrlfd = socket(PF_UNIX, SOCK_STREAM, 0);
if(connect(buddy_ctrlfd, (struct sockaddr *) &buddy_sockaddr, buddy_sockaddr_len) == 0)
return true;
return false;
}
/* Make sure errno contains a meaningful value on error */
static int lock_file(struct lock_file *lk, const char *path, int flags)
{
/*
* subtract 5 from size to make sure there's room for adding
* ".lock" for the lock file name
*/
static const size_t max_path_len = sizeof(lk->filename) - 5;
if (strlen(path) >= max_path_len) {
errno = ENAMETOOLONG;
return -1;
}
strcpy(lk->filename, path);
if (!(flags & LOCK_NODEREF))
resolve_symlink(lk->filename, max_path_len);
strcat(lk->filename, ".lock");
lk->fd = open(lk->filename, O_RDWR | O_CREAT | O_EXCL, 0666);
if (0 <= lk->fd) {
if (!lock_file_list) {
sigchain_push_common(remove_lock_file_on_signal);
atexit(remove_lock_file);
}
lk->owner = getpid();
if (!lk->on_list) {
lk->next = lock_file_list;
lock_file_list = lk;
lk->on_list = 1;
}
if (adjust_shared_perm(lk->filename)) {
int save_errno = errno;
error("cannot fix permission bits on %s",
lk->filename);
errno = save_errno;
return -1;
}
}
else
lk->filename[0] = 0;
return lk->fd;
}
int impl_fuse_context::open_directory(LPCWSTR file_name,
PDOKAN_FILE_INFO dokan_file_info) {
std::string fname = unixify(wchar_to_utf8_cstr(file_name));
if (ops_.opendir)
return do_open_dir(file_name, dokan_file_info);
// We don't have opendir(), so the most we can do is make sure
// that the target is indeed a directory
struct FUSE_STAT st = {0};
CHECKED(ops_.getattr(fname.c_str(), &st));
if (S_ISLNK(st.st_mode)) {
std::string resolved;
CHECKED(resolve_symlink(fname, &resolved));
CHECKED(ops_.getattr(resolved.c_str(), &st));
}
// Not a directory
if ((st.st_mode & S_IFDIR) != S_IFDIR)
return -ENOTDIR;
dokan_file_info->Context = (ULONG64)NULL; // Do not want to attach anything
return 0; // Use readdir here?
}
win_error impl_fuse_context::create_file(LPCWSTR file_name, DWORD access_mode,
DWORD share_mode,
DWORD creation_disposition,
DWORD flags_and_attributes,
PDOKAN_FILE_INFO dokan_file_info) {
std::string fname = unixify(wchar_to_utf8_cstr(file_name));
dokan_file_info->Context = 0;
if (!ops_.getattr)
return -EINVAL;
struct FUSE_STAT stbuf = {0};
// Check if the target file/directory exists
if (ops_.getattr(fname.c_str(), &stbuf) < 0) {
// Nope.
if (dokan_file_info->IsDirectory)
return -EINVAL; // We can't create directories using CreateFile
return do_create_file(file_name, creation_disposition, share_mode,
access_mode, dokan_file_info);
} else {
if (S_ISLNK(stbuf.st_mode)) {
// Get link's target
CHECKED(resolve_symlink(fname, &fname));
CHECKED(ops_.getattr(fname.c_str(), &stbuf));
}
if ((stbuf.st_mode & S_IFDIR) == S_IFDIR) {
// Existing directory
// TODO: add access control
dokan_file_info->IsDirectory = TRUE;
return do_open_dir(file_name, dokan_file_info);
} else {
// Existing file
// Check if we'll be able to truncate or delete the opened file
// TODO: race condition here?
if (creation_disposition == FILE_OVERWRITE) {
if (!ops_.unlink)
return -EINVAL;
CHECKED(ops_.unlink(fname.c_str())); // Delete file
// And create it!
return do_create_file(file_name, creation_disposition, share_mode,
access_mode, dokan_file_info);
} else if (creation_disposition == FILE_SUPERSEDE ||
creation_disposition == FILE_OVERWRITE_IF) {
if (!ops_.truncate)
return -EINVAL;
CHECKED(ops_.truncate(fname.c_str(), 0));
} else if (creation_disposition == FILE_CREATE) {
SetLastError(ERROR_FILE_EXISTS);
return win_error(STATUS_OBJECT_NAME_COLLISION, true);
}
if (creation_disposition == FILE_OVERWRITE_IF ||
creation_disposition == FILE_OPEN_IF) {
SetLastError(ERROR_ALREADY_EXISTS);
}
return do_open_file(file_name, share_mode, access_mode, dokan_file_info);
}
}
}
/* Main entry point. This is gcc driver driver!
Interpret -arch flag from the list of input arguments. Invoke appropriate
compiler driver. 'lipo' the results if more than one -arch is supplied. */
int
main (int argc, const char **argv)
{
size_t i;
int l, pid, argv_0_len, prog_len;
char *errmsg_fmt, *errmsg_arg;
char *override_option_str = NULL;
char path_buffer[2*PATH_MAX+1];
int linklen;
total_argc = argc;
prog_len = 0;
argv_0_len = strlen (argv[0]);
/* Get the progname, required by pexecute () and program location. */
prog_len = get_prog_name_len (argv[0]);
/* If argv[0] is all program name (no slashes), search the PATH environment
variable to get the fully resolved path to the executable. */
if (prog_len == argv_0_len)
{
#ifdef DEBUG
progname = argv[0] + argv_0_len - prog_len;
fprintf (stderr,"%s: before PATH resolution, full progname = %s\n",
argv[0]+argv_0_len-prog_len, argv[0]);
#endif
argv[0] = resolve_path_to_executable (argv[0]);
prog_len = get_prog_name_len (argv[0]);
argv_0_len = strlen(argv[0]);
}
/* If argv[0] is a symbolic link, use the directory of the pointed-to file
to find compiler components. */
if ((linklen = readlink (argv[0], path_buffer, PATH_MAX)) != -1)
{
/* readlink succeeds if argv[0] is a symlink. path_buffer now contains
the file referenced. */
path_buffer[linklen] = '\0';
#ifdef DEBUG
progname = argv[0] + argv_0_len - prog_len;
fprintf (stderr, "%s: before symlink, full prog = %s target = %s\n",
progname, argv[0], path_buffer);
#endif
argv[0] = resolve_symlink(argv[0], path_buffer, argv_0_len, prog_len);
argv_0_len = strlen(argv[0]);
/* Get the progname, required by pexecute () and program location. */
prog_len = get_prog_name_len (argv[0]);
#ifdef DEBUG
progname = argv[0] + argv_0_len - prog_len;
printf("%s: ARGV[0] after symlink = %s\n", progname, argv[0]);
#endif
}
progname = argv[0] + argv_0_len - prog_len;
/* Setup driver prefix. */
prefix_len = argv_0_len - prog_len;
curr_dir = (char *) malloc (sizeof (char) * (prefix_len + 1));
strncpy (curr_dir, argv[0], prefix_len);
curr_dir[prefix_len] = '\0';
driver_exec_prefix = (argv[0], "/usr/bin", curr_dir);
#ifdef DEBUG
fprintf (stderr,"%s: full progname = %s\n", progname, argv[0]);
fprintf (stderr,"%s: progname = %s\n", progname, progname);
fprintf (stderr,"%s: driver_exec_prefix = %s\n", progname, driver_exec_prefix);
#endif
/* Before we get too far, rewrite the command line with any requested overrides */
if ((override_option_str = getenv ("QA_OVERRIDE_GCC3_OPTIONS")) != NULL)
rewrite_command_line(override_option_str, &argc, (char***)&argv);
initialize ();
/* Process arguments. Take appropriate actions when
-arch, -c, -S, -E, -o is encountered. Find input file name. */
for (i = 1; i < argc; i++)
{
if (!strcmp (argv[i], "-arch"))
{
if (i + 1 >= argc)
abort ();
add_arch (argv[i+1]);
i++;
}
else if (!strcmp (argv[i], "-c"))
{
new_argv[new_argc++] = argv[i];
compile_only_request = 1;
}
else if (!strcmp (argv[i], "-S"))
{
new_argv[new_argc++] = argv[i];
asm_output_request = 1;
}
else if (!strcmp (argv[i], "-E"))
{
new_argv[new_argc++] = argv[i];
preprocessed_output_request = 1;
}
else if (!strcmp (argv[i], "-MD") || !strcmp (argv[i], "-MMD"))
{
new_argv[new_argc++] = argv[i];
dash_capital_m_seen = 1;
}
else if (!strcmp (argv[i], "-m32"))
{
new_argv[new_argc++] = argv[i];
dash_m32_seen = 1;
}
else if (!strcmp (argv[i], "-m64"))
{
new_argv[new_argc++] = argv[i];
dash_m64_seen = 1;
}
else if (!strcmp (argv[i], "-dynamiclib"))
{
new_argv[new_argc++] = argv[i];
dash_dynamiclib_seen = 1;
}
else if (!strcmp (argv[i], "-v"))
{
new_argv[new_argc++] = argv[i];
verbose_flag = 1;
}
else if (!strcmp (argv[i], "-o"))
{
if (i + 1 >= argc)
fatal ("argument to '-o' is missing");
output_filename = argv[i+1];
i++;
}
else if ((! strcmp (argv[i], "-pass-exit-codes"))
|| (! strcmp (argv[i], "-print-search-dirs"))
|| (! strcmp (argv[i], "-print-libgcc-file-name"))
|| (! strncmp (argv[i], "-print-file-name=", 17))
|| (! strncmp (argv[i], "-print-prog-name=", 17))
|| (! strcmp (argv[i], "-print-multi-lib"))
|| (! strcmp (argv[i], "-print-multi-directory"))
|| (! strcmp (argv[i], "-print-multi-os-directory"))
|| (! strcmp (argv[i], "-ftarget-help"))
|| (! strcmp (argv[i], "-fhelp"))
|| (! strcmp (argv[i], "+e"))
|| (! strncmp (argv[i], "-Wa,",4))
|| (! strncmp (argv[i], "-Wp,",4))
|| (! strncmp (argv[i], "-Wl,",4))
|| (! strncmp (argv[i], "-l", 2))
|| (! strncmp (argv[i], "-weak-l", 7))
|| (! strncmp (argv[i], "-specs=", 7))
|| (! strcmp (argv[i], "-ObjC"))
|| (! strcmp (argv[i], "-fobjC"))
|| (! strcmp (argv[i], "-ObjC++"))
|| (! strcmp (argv[i], "-time"))
|| (! strcmp (argv[i], "-###"))
|| (! strcmp (argv[i], "-fconstant-cfstrings"))
|| (! strcmp (argv[i], "-fno-constant-cfstrings"))
|| (! strcmp (argv[i], "-static-libgcc"))
|| (! strcmp (argv[i], "-shared-libgcc"))
|| (! strcmp (argv[i], "-pipe"))
)
{
new_argv[new_argc++] = argv[i];
}
else if (! strcmp (argv[i], "-save-temps")
|| ! strcmp (argv[i], "--save-temps"))
{
new_argv[new_argc++] = argv[i];
save_temps_seen = 1;
}
else if ((! strcmp (argv[i], "-Xlinker"))
|| (! strcmp (argv[i], "-Xassembler"))
|| (! strcmp (argv[i], "-Xpreprocessor"))
|| (! strcmp (argv[i], "-l"))
|| (! strcmp (argv[i], "-weak_library"))
|| (! strcmp (argv[i], "-weak_framework"))
|| (! strcmp (argv[i], "-specs"))
|| (! strcmp (argv[i], "-framework"))
)
{
new_argv[new_argc++] = argv[i];
i++;
new_argv[new_argc++] = argv[i];
}
else if (! strncmp (argv[i], "-Xarch_", 7))
{
arch_conditional[new_argc] = get_arch_name (argv[i] + 7);
i++;
new_argv[new_argc++] = argv[i];
}
else if (argv[i][0] == '-' && argv[i][1] != 0)
{
const char *p = &argv[i][1];
int c = *p;
/* First copy this flag itself. */
new_argv[new_argc++] = argv[i];
if (argv[i][1] == 'M')
dash_capital_m_seen = 1;
/* Now copy this flag's arguments, if any, appropriately. */
if ((SWITCH_TAKES_ARG (c) > (p[1] != 0))
|| WORD_SWITCH_TAKES_ARG (p))
{
int j = 0;
int n_args = WORD_SWITCH_TAKES_ARG (p);
if (n_args == 0)
{
/* Count only the option arguments in separate argv elements. */
n_args = SWITCH_TAKES_ARG (c) - (p[1] != 0);
}
if (i + n_args >= argc)
fatal ("argument to `-%s' is missing", p);
while ( j < n_args)
{
i++;
new_argv[new_argc++] = argv[i];
j++;
}
}
}
else
{
struct input_filename *ifn;
new_argv[new_argc++] = argv[i];
ifn = (struct input_filename *) malloc (sizeof (struct input_filename));
ifn->name = argv[i];
ifn->index = i;
ifn->next = NULL;
num_infiles++;
if (last_infile)
last_infile->next = ifn;
else
in_files = ifn;
last_infile = ifn;
}
}
#if 0
if (num_infiles == 0)
fatal ("no input files");
#endif
if (num_arches == 0)
add_arch(get_arch_name(NULL));
if (num_arches > 1)
{
if (preprocessed_output_request
|| save_temps_seen
|| asm_output_request
|| dash_capital_m_seen)
fatal ("-E, -S, -save-temps and -M options are not allowed with multiple -arch flags");
}
/* If -arch is not present OR Only one -arch <blah> is specified.
Invoke appropriate compiler driver. FAT build is not required in this
case. */
if (num_arches == 1)
{
int arch_specific_argc;
const char **arch_specific_argv;
/* Find compiler driver based on -arch <foo> and add approriate
-m* argument. */
new_argv[0] = get_driver_name (get_arch_name (arches[0]));
new_argc = new_argc + add_arch_options (0, new_argv, new_argc);
#ifdef DEBUG
printf ("%s: invoking single driver name = %s\n", progname, new_argv[0]);
#endif
/* Re insert output file name. */
if (output_filename)
{
new_argv[new_argc++] = "-o";
new_argv[new_argc++] = output_filename;
}
/* Add the NULL. */
new_argv[new_argc] = NULL;
arch_specific_argv =
(const char **) malloc ((new_argc + 1) * sizeof (const char *));
arch_specific_argc = filter_args_for_arch (new_argv,
new_argc,
arch_specific_argv,
get_arch_name (arches[0]));
#ifdef DEBUG
debug_command_line (arch_specific_argv, arch_specific_argc);
#endif
pid = pexecute (arch_specific_argv[0], (char *const *)arch_specific_argv,
progname, NULL, &errmsg_fmt, &errmsg_arg,
PEXECUTE_SEARCH | PEXECUTE_ONE);
if (pid == -1)
pfatal_pexecute (errmsg_fmt, errmsg_arg);
do_wait (pid, arch_specific_argv[0]);
}
else
{
/* Handle multiple -arch <blah>. */
/* If more than one input files are supplied but only one output filename
is present then IMA will be used. */
if (num_infiles > 1 && !compile_only_request)
ima_is_used = 1;
/* Linker wants to know this in case of multiple -arch. */
if (!compile_only_request && !dash_dynamiclib_seen)
new_argv[new_argc++] = "-Wl,-arch_multiple";
/* If only one input file is specified OR IMA is used then expected output
is one FAT binary. */
if (num_infiles == 1 || ima_is_used)
{
const char *out_file;
/* Create output file name based on
input filename, if required. */
if (compile_only_request && !output_filename && num_infiles == 1)
out_file = strip_path_and_suffix (in_files->name, ".o");
else
out_file = (output_filename ? output_filename : final_output);
/* Linker wants to know name of output file using one extra arg. */
if (!compile_only_request)
{
char *oname = (char *)(output_filename ? output_filename : final_output);
char *n = malloc (sizeof (char) * (strlen (oname) + 5));
strcpy (n, "-Wl,");
strcat (n, oname);
new_argv[new_argc++] = "-Wl,-final_output";
new_argv[new_argc++] = n;
}
/* Compile file(s) for each arch and lipo 'em together. */
do_compile (new_argv, new_argc);
/* Make FAT binary by combining individual output files for each
architecture, using 'lipo'. */
do_lipo (0, out_file);
}
else
{
/* Multiple input files are present and IMA is not used.
Which means need to generate multiple FAT files. */
do_compile_separately ();
do_lipo_separately ();
}
}
final_cleanup ();
free (curr_dir);
return greatest_status;
}
