diff options
Diffstat (limited to 'source3/libsmb/libsmb_file.c')
| -rw-r--r-- | source3/libsmb/libsmb_file.c | 224 |
1 files changed, 87 insertions, 137 deletions
diff --git a/source3/libsmb/libsmb_file.c b/source3/libsmb/libsmb_file.c index f6cd8ec03f..b3b0bc2b9f 100644 --- a/source3/libsmb/libsmb_file.c +++ b/source3/libsmb/libsmb_file.c @@ -7,17 +7,17 @@ Copyright (C) Tom Jansen (Ninja ISD) 2002 Copyright (C) Derrell Lipman 2003-2008 Copyright (C) Jeremy Allison 2007, 2008 - + 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/>. */ @@ -50,23 +50,19 @@ SMBC_open_ctx(SMBCCTX *context, uint16_t fd; NTSTATUS status = NT_STATUS_OBJECT_PATH_INVALID; TALLOC_CTX *frame = talloc_stackframe(); - + if (!context || !context->internal->initialized) { - errno = EINVAL; /* Best I can think of ... */ TALLOC_FREE(frame); return NULL; - } - + if (!fname) { - errno = EINVAL; TALLOC_FREE(frame); return NULL; - } - + if (SMBC_parse_path(frame, context, fname, @@ -81,7 +77,7 @@ SMBC_open_ctx(SMBCCTX *context, TALLOC_FREE(frame); return NULL; } - + if (!user || user[0] == (char)0) { user = talloc_strdup(frame, smbc_getUser(context)); if (!user) { @@ -90,31 +86,29 @@ SMBC_open_ctx(SMBCCTX *context, return NULL; } } - + srv = SMBC_server(frame, context, True, server, share, &workgroup, &user, &password); - if (!srv) { if (errno == EPERM) errno = EACCES; TALLOC_FREE(frame); return NULL; /* SMBC_server sets errno */ } - + /* Hmmm, the test for a directory is suspect here ... FIXME */ - + if (strlen(path) > 0 && path[strlen(path) - 1] == '\\') { status = NT_STATUS_OBJECT_PATH_INVALID; } else { file = SMB_MALLOC_P(SMBCFILE); - if (!file) { errno = ENOMEM; TALLOC_FREE(frame); return NULL; } - + ZERO_STRUCTP(file); - + /*d_printf(">>>open: resolving %s\n", path);*/ if (!cli_resolve_path(frame, "", context->internal->auth_info, srv->cli, path, @@ -126,30 +120,29 @@ SMBC_open_ctx(SMBCCTX *context, return NULL; } /*d_printf(">>>open: resolved %s as %s\n", path, targetpath);*/ - + status = cli_open(targetcli, targetpath, flags, context->internal->share_mode, &fd); if (!NT_STATUS_IS_OK(status)) { - + /* Handle the error ... */ - + SAFE_FREE(file); errno = SMBC_errno(context, targetcli); TALLOC_FREE(frame); return NULL; - } - + /* Fill in file struct */ - + file->cli_fd = fd; file->fname = SMB_STRDUP(fname); file->srv = srv; file->offset = 0; file->file = True; - + DLIST_ADD(context->internal->files, file); - + /* * If the file was opened in O_APPEND mode, all write * operations should be appended to the file. To do that, @@ -180,29 +173,26 @@ SMBC_open_ctx(SMBCCTX *context, return NULL; } } - + TALLOC_FREE(frame); return file; - } - + /* Check if opendir needed ... */ - + if (!NT_STATUS_IS_OK(status)) { int eno = 0; - + eno = SMBC_errno(context, srv->cli); file = smbc_getFunctionOpendir(context)(context, fname); if (!file) errno = eno; TALLOC_FREE(frame); return file; - } - + errno = EINVAL; /* FIXME, correct errno ? */ TALLOC_FREE(frame); return NULL; - } /* @@ -214,14 +204,11 @@ SMBC_creat_ctx(SMBCCTX *context, const char *path, mode_t mode) { - if (!context || !context->internal->initialized) { - errno = EINVAL; return NULL; - } - + return SMBC_open_ctx(context, path, O_WRONLY | O_CREAT | O_TRUNC, mode); } @@ -242,7 +229,7 @@ SMBC_read_ctx(SMBCCTX *context, char *targetpath = NULL; struct cli_state *targetcli = NULL; TALLOC_CTX *frame = talloc_stackframe(); - + /* * offset: * @@ -253,35 +240,31 @@ SMBC_read_ctx(SMBCCTX *context, * retrieving data at an offset greater than 4GB. */ off_t offset; - + if (!context || !context->internal->initialized) { - errno = EINVAL; TALLOC_FREE(frame); return -1; - } - + DEBUG(4, ("smbc_read(%p, %d)\n", file, (int)count)); - + if (!file || !SMBC_dlist_contains(context->internal->files, file)) { errno = EBADF; TALLOC_FREE(frame); return -1; - } - + offset = file->offset; - + /* Check that the buffer exists ... */ - + if (buf == NULL) { errno = EINVAL; TALLOC_FREE(frame); return -1; - } - + /*d_printf(">>>read: parsing %s\n", file->fname);*/ if (SMBC_parse_path(frame, context, @@ -297,7 +280,7 @@ SMBC_read_ctx(SMBCCTX *context, TALLOC_FREE(frame); return -1; } - + /*d_printf(">>>read: resolving %s\n", path);*/ if (!cli_resolve_path(frame, "", context->internal->auth_info, file->srv->cli, path, @@ -308,24 +291,21 @@ SMBC_read_ctx(SMBCCTX *context, return -1; } /*d_printf(">>>fstat: resolved path as %s\n", targetpath);*/ - + ret = cli_read(targetcli, file->cli_fd, (char *)buf, offset, count); - + if (ret < 0) { - errno = SMBC_errno(context, targetcli); TALLOC_FREE(frame); return -1; - } - + file->offset += ret; - + DEBUG(4, (" --> %d\n", ret)); - + TALLOC_FREE(frame); return ret; /* Success, ret bytes of data ... */ - } /* @@ -345,34 +325,31 @@ SMBC_write_ctx(SMBCCTX *context, char *targetpath = NULL; struct cli_state *targetcli = NULL; TALLOC_CTX *frame = talloc_stackframe(); - + /* First check all pointers before dereferencing them */ - + if (!context || !context->internal->initialized) { - errno = EINVAL; TALLOC_FREE(frame); return -1; - } - + if (!file || !SMBC_dlist_contains(context->internal->files, file)) { errno = EBADF; TALLOC_FREE(frame); return -1; } - + /* Check that the buffer exists ... */ - + if (buf == NULL) { errno = EINVAL; TALLOC_FREE(frame); return -1; - } - + offset = file->offset; /* See "offset" comment in SMBC_read_ctx() */ - + /*d_printf(">>>write: parsing %s\n", file->fname);*/ if (SMBC_parse_path(frame, context, @@ -399,19 +376,17 @@ SMBC_write_ctx(SMBCCTX *context, return -1; } /*d_printf(">>>write: resolved path as %s\n", targetpath);*/ - + ret = cli_write(targetcli, file->cli_fd, 0, (char *)buf, offset, count); - if (ret <= 0) { errno = SMBC_errno(context, targetcli); TALLOC_FREE(frame); return -1; - } - + file->offset += ret; - + TALLOC_FREE(frame); return ret; /* Success, 0 bytes of data ... */ } @@ -430,26 +405,25 @@ SMBC_close_ctx(SMBCCTX *context, char *targetpath = NULL; struct cli_state *targetcli = NULL; TALLOC_CTX *frame = talloc_stackframe(); - + if (!context || !context->internal->initialized) { - errno = EINVAL; TALLOC_FREE(frame); return -1; } - + if (!file || !SMBC_dlist_contains(context->internal->files, file)) { errno = EBADF; TALLOC_FREE(frame); return -1; } - + /* IS a dir ... */ if (!file->file) { TALLOC_FREE(frame); return smbc_getFunctionClosedir(context)(context, file); } - + /*d_printf(">>>close: parsing %s\n", file->fname);*/ if (SMBC_parse_path(frame, context, @@ -465,7 +439,7 @@ SMBC_close_ctx(SMBCCTX *context, TALLOC_FREE(frame); return -1; } - + /*d_printf(">>>close: resolving %s\n", path);*/ if (!cli_resolve_path(frame, "", context->internal->auth_info, file->srv->cli, path, @@ -476,9 +450,8 @@ SMBC_close_ctx(SMBCCTX *context, return -1; } /*d_printf(">>>close: resolved path as %s\n", targetpath);*/ - + if (!NT_STATUS_IS_OK(cli_close(targetcli, file->cli_fd))) { - DEBUG(3, ("cli_close failed on %s. purging server.\n", file->fname)); /* Deallocate slot and remove the server @@ -491,14 +464,12 @@ SMBC_close_ctx(SMBCCTX *context, smbc_getFunctionRemoveUnusedServer(context)(context, srv); TALLOC_FREE(frame); return -1; - } - + DLIST_REMOVE(context->internal->files, file); SAFE_FREE(file->fname); SAFE_FREE(file); TALLOC_FREE(frame); - return 0; } @@ -523,14 +494,13 @@ SMBC_getatr(SMBCCTX * context, struct cli_state *targetcli = NULL; time_t write_time; TALLOC_CTX *frame = talloc_stackframe(); - + if (!context || !context->internal->initialized) { - errno = EINVAL; TALLOC_FREE(frame); return False; } - + /* path fixup for . and .. */ if (strequal(path, ".") || strequal(path, "..")) { fixedpath = talloc_strdup(frame, "\\"); @@ -550,7 +520,7 @@ SMBC_getatr(SMBCCTX * context, trim_string(fixedpath, NULL, "\\."); } DEBUG(4,("SMBC_getatr: sending qpathinfo\n")); - + if (!cli_resolve_path(frame, "", context->internal->auth_info, srv->cli, fixedpath, &targetcli, &targetpath)) { @@ -559,7 +529,7 @@ SMBC_getatr(SMBCCTX * context, TALLOC_FREE(frame); return False; } - + if (!srv->no_pathinfo2 && cli_qpathinfo2(targetcli, targetpath, create_time_ts, @@ -570,45 +540,38 @@ SMBC_getatr(SMBCCTX * context, TALLOC_FREE(frame); return True; } - + /* if this is NT then don't bother with the getatr */ if (targetcli->capabilities & CAP_NT_SMBS) { errno = EPERM; TALLOC_FREE(frame); return False; } - + if (NT_STATUS_IS_OK(cli_getatr(targetcli, targetpath, mode, size, &write_time))) { - struct timespec w_time_ts; - + w_time_ts = convert_time_t_to_timespec(write_time); - if (write_time_ts != NULL) { *write_time_ts = w_time_ts; } - if (create_time_ts != NULL) { *create_time_ts = w_time_ts; } - if (access_time_ts != NULL) { *access_time_ts = w_time_ts; } - if (change_time_ts != NULL) { *change_time_ts = w_time_ts; } - srv->no_pathinfo2 = True; TALLOC_FREE(frame); return True; } - + errno = EPERM; TALLOC_FREE(frame); return False; - } /* @@ -632,7 +595,7 @@ SMBC_setatr(SMBCCTX * context, SMBCSRV *srv, char *path, uint16_t fd; int ret; TALLOC_CTX *frame = talloc_stackframe(); - + /* * First, try setpathinfo (if qpathinfo succeeded), for it is the * modern function for "new code" to be using, and it works given a @@ -646,7 +609,7 @@ SMBC_setatr(SMBCCTX * context, SMBCSRV *srv, char *path, write_time, change_time, mode)) { - + /* * setpathinfo is not supported; go to plan B. * @@ -656,27 +619,26 @@ SMBC_setatr(SMBCCTX * context, SMBCSRV *srv, char *path, * cli_setattrE() which should work on all OS versions, and * supports both times. */ - + /* Don't try {q,set}pathinfo() again, with this server */ srv->no_pathinfo = True; - + /* Open the file */ if (!NT_STATUS_IS_OK(cli_open(srv->cli, path, O_RDWR, DENY_NONE, &fd))) { - errno = SMBC_errno(context, srv->cli); TALLOC_FREE(frame); return -1; } - + /* Set the new attributes */ ret = NT_STATUS_IS_OK(cli_setattrE(srv->cli, fd, change_time, access_time, write_time)); - + /* Close the file */ cli_close(srv->cli, fd); - + /* * Unfortunately, setattrE() doesn't have a provision for * setting the access mode (attributes). We'll have to try @@ -686,14 +648,14 @@ SMBC_setatr(SMBCCTX * context, SMBCSRV *srv, char *path, if (ret && mode != (uint16) -1) { ret = NT_STATUS_IS_OK(cli_setatr(srv->cli, path, mode, 0)); } - + if (! ret) { errno = SMBC_errno(context, srv->cli); TALLOC_FREE(frame); return False; } } - + TALLOC_FREE(frame); return True; } @@ -714,39 +676,32 @@ SMBC_lseek_ctx(SMBCCTX *context, char *targetpath = NULL; struct cli_state *targetcli = NULL; TALLOC_CTX *frame = talloc_stackframe(); - + if (!context || !context->internal->initialized) { - errno = EINVAL; TALLOC_FREE(frame); return -1; } - + if (!file || !SMBC_dlist_contains(context->internal->files, file)) { - errno = EBADF; TALLOC_FREE(frame); return -1; - } - + if (!file->file) { - errno = EINVAL; TALLOC_FREE(frame); return -1; /* Can't lseek a dir ... */ - } - + switch (whence) { case SEEK_SET: file->offset = offset; break; - case SEEK_CUR: file->offset += offset; break; - case SEEK_END: /*d_printf(">>>lseek: parsing %s\n", file->fname);*/ if (SMBC_parse_path(frame, @@ -763,7 +718,7 @@ SMBC_lseek_ctx(SMBCCTX *context, TALLOC_FREE(frame); return -1; } - + /*d_printf(">>>lseek: resolving %s\n", path);*/ if (!cli_resolve_path(frame, "", context->internal->auth_info, file->srv->cli, path, @@ -773,8 +728,8 @@ SMBC_lseek_ctx(SMBCCTX *context, TALLOC_FREE(frame); return -1; } + /*d_printf(">>>lseek: resolved path as %s\n", targetpath);*/ - if (!cli_qfileinfo(targetcli, file->cli_fd, NULL, &size, NULL, NULL, NULL, NULL, NULL)) { @@ -789,16 +744,13 @@ SMBC_lseek_ctx(SMBCCTX *context, } file->offset = size + offset; break; - default: errno = EINVAL; break; - } - + TALLOC_FREE(frame); return file->offset; - } @@ -820,26 +772,25 @@ SMBC_ftruncate_ctx(SMBCCTX *context, char *targetpath = NULL; struct cli_state *targetcli = NULL; TALLOC_CTX *frame = talloc_stackframe(); - + if (!context || !context->internal->initialized) { - errno = EINVAL; TALLOC_FREE(frame); return -1; } - + if (!file || !SMBC_dlist_contains(context->internal->files, file)) { errno = EBADF; TALLOC_FREE(frame); return -1; } - + if (!file->file) { errno = EINVAL; TALLOC_FREE(frame); return -1; } - + /*d_printf(">>>fstat: parsing %s\n", file->fname);*/ if (SMBC_parse_path(frame, context, @@ -855,7 +806,7 @@ SMBC_ftruncate_ctx(SMBCCTX *context, TALLOC_FREE(frame); return -1; } - + /*d_printf(">>>fstat: resolving %s\n", path);*/ if (!cli_resolve_path(frame, "", context->internal->auth_info, file->srv->cli, path, @@ -866,14 +817,13 @@ SMBC_ftruncate_ctx(SMBCCTX *context, return -1; } /*d_printf(">>>fstat: resolved path as %s\n", targetpath);*/ - + if (!NT_STATUS_IS_OK(cli_ftruncate(targetcli, file->cli_fd, (uint64_t)size))) { errno = EINVAL; TALLOC_FREE(frame); return -1; } - + TALLOC_FREE(frame); return 0; - } |