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authorJeremy Allison <jra@samba.org>2009-05-28 13:32:00 -0700
committerJeremy Allison <jra@samba.org>2009-05-28 13:32:00 -0700
commit656e86d5fa876131fc8e373f0c2100f4bef1cc26 (patch)
treeb8e8afc42f03e86430f6ad05371b0438379c288e /source3/libsmb
parentfbca26923915a70031f561b198cfe2cc0d9c3aa6 (diff)
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Make cli_posix_stat() async.
Jeremy.
Diffstat (limited to 'source3/libsmb')
-rw-r--r--source3/libsmb/clifile.c195
1 files changed, 143 insertions, 52 deletions
diff --git a/source3/libsmb/clifile.c b/source3/libsmb/clifile.c
index be2e81204d..4c5dc3bd19 100644
--- a/source3/libsmb/clifile.c
+++ b/source3/libsmb/clifile.c
@@ -772,85 +772,176 @@ NTSTATUS cli_posix_getfacl(struct cli_state *cli,
Stat a file (UNIX extensions).
****************************************************************************/
-bool cli_unix_stat(struct cli_state *cli, const char *name, SMB_STRUCT_STAT *sbuf)
+struct stat_state {
+ uint16_t setup;
+ uint8_t *param;
+ uint32_t num_data;
+ uint8_t *data;
+};
+
+static void cli_posix_stat_done(struct tevent_req *subreq)
{
- unsigned int param_len = 0;
- unsigned int data_len = 0;
- uint16_t setup = TRANSACT2_QPATHINFO;
- char *param;
- size_t nlen = 2*(strlen(name)+1);
- char *rparam=NULL, *rdata=NULL;
- char *p;
+ struct tevent_req *req = tevent_req_callback_data(
+ subreq, struct tevent_req);
+ struct stat_state *state = tevent_req_data(req, struct stat_state);
+ NTSTATUS status;
+
+ status = cli_trans_recv(subreq, state, NULL, NULL, NULL, NULL,
+ &state->data, &state->num_data);
+ TALLOC_FREE(subreq);
+ if (!NT_STATUS_IS_OK(status)) {
+ tevent_req_nterror(req, status);
+ return;
+ }
+ tevent_req_done(req);
+}
- ZERO_STRUCTP(sbuf);
+struct tevent_req *cli_posix_stat_send(TALLOC_CTX *mem_ctx,
+ struct event_context *ev,
+ struct cli_state *cli,
+ const char *fname)
+{
+ struct tevent_req *req = NULL, *subreq = NULL;
+ struct stat_state *state = NULL;
- param = SMB_MALLOC_ARRAY(char, 6+nlen+2);
- if (!param) {
- return false;
+ req = tevent_req_create(mem_ctx, &state, struct stat_state);
+ if (req == NULL) {
+ return NULL;
}
- p = param;
- memset(p, '\0', 6);
- SSVAL(p, 0, SMB_QUERY_FILE_UNIX_BASIC);
- p += 6;
- p += clistr_push(cli, p, name, nlen, STR_TERMINATE);
- param_len = PTR_DIFF(p, param);
- if (!cli_send_trans(cli, SMBtrans2,
- NULL, /* name */
- -1, 0, /* fid, flags */
- &setup, 1, 0, /* setup, length, max */
- param, param_len, 2, /* param, length, max */
- NULL, 0, cli->max_xmit /* data, length, max */
- )) {
- SAFE_FREE(param);
- return false;
+ /* Setup setup word. */
+ SSVAL(&state->setup, 0, TRANSACT2_QPATHINFO);
+
+ /* Setup param array. */
+ state->param = talloc_array(state, uint8_t, 6);
+ if (tevent_req_nomem(state->param, req)) {
+ return tevent_req_post(req, ev);
}
+ memset(state->param, '\0', 6);
+ SSVAL(state->param, 0, SMB_QUERY_FILE_UNIX_BASIC);
- SAFE_FREE(param);
+ state->param = trans2_bytes_push_str(state->param, cli_ucs2(cli), fname,
+ strlen(fname)+1, NULL);
- if (!cli_receive_trans(cli, SMBtrans2,
- &rparam, &param_len,
- &rdata, &data_len)) {
- return false;
+ if (tevent_req_nomem(state->param, req)) {
+ return tevent_req_post(req, ev);
}
- if (data_len < 96) {
- SAFE_FREE(rdata);
- SAFE_FREE(rparam);
- return false;
+ subreq = cli_trans_send(state, /* mem ctx. */
+ ev, /* event ctx. */
+ cli, /* cli_state. */
+ SMBtrans2, /* cmd. */
+ NULL, /* pipe name. */
+ -1, /* fid. */
+ 0, /* function. */
+ 0, /* flags. */
+ &state->setup, /* setup. */
+ 1, /* num setup uint16_t words. */
+ 0, /* max returned setup. */
+ state->param, /* param. */
+ talloc_get_size(state->param), /* num param. */
+ 2, /* max returned param. */
+ NULL, /* data. */
+ 0, /* num data. */
+ 96); /* max returned data. */
+
+ if (tevent_req_nomem(subreq, req)) {
+ return tevent_req_post(req, ev);
}
+ tevent_req_set_callback(subreq, cli_posix_stat_done, req);
+ return req;
+}
- sbuf->st_ex_size = IVAL2_TO_SMB_BIG_UINT(rdata,0); /* total size, in bytes */
- sbuf->st_ex_blocks = IVAL2_TO_SMB_BIG_UINT(rdata,8); /* number of blocks allocated */
+NTSTATUS cli_posix_stat_recv(struct tevent_req *req,
+ SMB_STRUCT_STAT *sbuf)
+{
+ struct stat_state *state = tevent_req_data(req, struct stat_state);
+ NTSTATUS status;
+
+ if (tevent_req_is_nterror(req, &status)) {
+ return status;
+ }
+
+ if (state->num_data != 96) {
+ return NT_STATUS_DATA_ERROR;
+ }
+
+ sbuf->st_ex_size = IVAL2_TO_SMB_BIG_UINT(state->data,0); /* total size, in bytes */
+ sbuf->st_ex_blocks = IVAL2_TO_SMB_BIG_UINT(state->data,8); /* number of blocks allocated */
#if defined (HAVE_STAT_ST_BLOCKS) && defined(STAT_ST_BLOCKSIZE)
sbuf->st_ex_blocks /= STAT_ST_BLOCKSIZE;
#else
/* assume 512 byte blocks */
sbuf->st_ex_blocks /= 512;
#endif
- sbuf->st_ex_ctime = interpret_long_date(rdata + 16); /* time of last change */
- sbuf->st_ex_atime = interpret_long_date(rdata + 24); /* time of last access */
- sbuf->st_ex_mtime = interpret_long_date(rdata + 32); /* time of last modification */
+ sbuf->st_ex_ctime = interpret_long_date((char *)(state->data + 16)); /* time of last change */
+ sbuf->st_ex_atime = interpret_long_date((char *)(state->data + 24)); /* time of last access */
+ sbuf->st_ex_mtime = interpret_long_date((char *)(state->data + 32)); /* time of last modification */
- sbuf->st_ex_uid = (uid_t) IVAL(rdata,40); /* user ID of owner */
- sbuf->st_ex_gid = (gid_t) IVAL(rdata,48); /* group ID of owner */
- sbuf->st_ex_mode |= unix_filetype_from_wire(IVAL(rdata, 56));
+ sbuf->st_ex_uid = (uid_t) IVAL(state->data,40); /* user ID of owner */
+ sbuf->st_ex_gid = (gid_t) IVAL(state->data,48); /* group ID of owner */
+ sbuf->st_ex_mode = unix_filetype_from_wire(IVAL(state->data, 56));
#if defined(HAVE_MAKEDEV)
{
- uint32_t dev_major = IVAL(rdata,60);
- uint32_t dev_minor = IVAL(rdata,68);
+ uint32_t dev_major = IVAL(state->data,60);
+ uint32_t dev_minor = IVAL(state->data,68);
sbuf->st_ex_rdev = makedev(dev_major, dev_minor);
}
#endif
- sbuf->st_ex_ino = (SMB_INO_T)IVAL2_TO_SMB_BIG_UINT(rdata,76); /* inode */
- sbuf->st_ex_mode |= wire_perms_to_unix(IVAL(rdata,84)); /* protection */
- sbuf->st_ex_nlink = IVAL(rdata,92); /* number of hard links */
+ sbuf->st_ex_ino = (SMB_INO_T)IVAL2_TO_SMB_BIG_UINT(state->data,76); /* inode */
+ sbuf->st_ex_mode |= wire_perms_to_unix(IVAL(state->data,84)); /* protection */
+ sbuf->st_ex_nlink = IVAL(state->data,92); /* number of hard links */
- SAFE_FREE(rdata);
- SAFE_FREE(rparam);
+ return NT_STATUS_OK;
+}
- return true;
+NTSTATUS cli_posix_stat(struct cli_state *cli,
+ const char *fname,
+ SMB_STRUCT_STAT *sbuf)
+{
+ TALLOC_CTX *frame = talloc_stackframe();
+ struct event_context *ev = NULL;
+ struct tevent_req *req = NULL;
+ NTSTATUS status = NT_STATUS_OK;
+
+ if (cli_has_async_calls(cli)) {
+ /*
+ * Can't use sync call while an async call is in flight
+ */
+ status = NT_STATUS_INVALID_PARAMETER;
+ goto fail;
+ }
+
+ ev = event_context_init(frame);
+ if (ev == NULL) {
+ status = NT_STATUS_NO_MEMORY;
+ goto fail;
+ }
+
+ req = cli_posix_stat_send(frame,
+ ev,
+ cli,
+ fname);
+ if (req == NULL) {
+ status = NT_STATUS_NO_MEMORY;
+ goto fail;
+ }
+
+ if (!tevent_req_poll(req, ev)) {
+ status = map_nt_error_from_unix(errno);
+ goto fail;
+ }
+
+ status = cli_posix_stat_recv(req, sbuf);
+
+ fail:
+ TALLOC_FREE(frame);
+ if (!NT_STATUS_IS_OK(status)) {
+ cli_set_error(cli, status);
+ }
+ return status;
}
+
/****************************************************************************
Chmod or chown a file internal (UNIX extensions).
****************************************************************************/