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authorMichael Adam <obnox@samba.org>2008-01-10 14:27:52 +0100
committerMichael Adam <obnox@samba.org>2008-01-10 14:31:25 +0100
commitba2a2552822ded95358c11972005f2c353580439 (patch)
tree57a36d983f03bb986fabc453a9d3f9d4cb5c9a04 /source3/lib
parent386caead47e97b9fdc991b713cb597f1a1c4a365 (diff)
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Move transfer_file and transfer_file_internal to a module of their own.
Also, don't auto-generate prototypes of the (two) exported functions but make a start in having handwritten prototypes in dedicated header files (not in includes.h ... :-) Michael (This used to be commit 395f29d8b768a56af20b37f185eccdc5f37b68d5)
Diffstat (limited to 'source3/lib')
-rw-r--r--source3/lib/util.c87
-rw-r--r--source3/lib/util_transfer_file.c110
2 files changed, 110 insertions, 87 deletions
diff --git a/source3/lib/util.c b/source3/lib/util.c
index 44eaa85ab0..0653fc9d3f 100644
--- a/source3/lib/util.c
+++ b/source3/lib/util.c
@@ -897,93 +897,6 @@ int set_blocking(int fd, bool set)
#undef FLAG_TO_SET
}
-/****************************************************************************
- Transfer some data between two fd's.
-****************************************************************************/
-
-#ifndef TRANSFER_BUF_SIZE
-#define TRANSFER_BUF_SIZE 65536
-#endif
-
-
-ssize_t transfer_file_internal(void *in_file,
- void *out_file,
- size_t n,
- ssize_t (*read_fn)(void *, void *, size_t),
- ssize_t (*write_fn)(void *, void *, size_t))
-{
- char *buf;
- size_t total = 0;
- ssize_t read_ret;
- ssize_t write_ret;
- size_t num_to_read_thistime;
- size_t num_written = 0;
-
- if ((buf = SMB_MALLOC_ARRAY(char, TRANSFER_BUF_SIZE)) == NULL) {
- return -1;
- }
-
- while (total < n) {
- num_to_read_thistime = MIN((n - total), TRANSFER_BUF_SIZE);
-
- read_ret = (*read_fn)(in_file, buf, num_to_read_thistime);
- if (read_ret == -1) {
- DEBUG(0,("transfer_file_internal: read failure. "
- "Error = %s\n", strerror(errno) ));
- SAFE_FREE(buf);
- return -1;
- }
- if (read_ret == 0) {
- break;
- }
-
- num_written = 0;
-
- while (num_written < read_ret) {
- write_ret = (*write_fn)(out_file, buf + num_written,
- read_ret - num_written);
-
- if (write_ret == -1) {
- DEBUG(0,("transfer_file_internal: "
- "write failure. Error = %s\n",
- strerror(errno) ));
- SAFE_FREE(buf);
- return -1;
- }
- if (write_ret == 0) {
- return (ssize_t)total;
- }
-
- num_written += (size_t)write_ret;
- }
-
- total += (size_t)read_ret;
- }
-
- SAFE_FREE(buf);
- return (ssize_t)total;
-}
-
-static ssize_t sys_read_fn(void *file, void *buf, size_t len)
-{
- int *fd = (int *)file;
-
- return sys_read(*fd, buf, len);
-}
-
-static ssize_t sys_write_fn(void *file, void *buf, size_t len)
-{
- int *fd = (int *)file;
-
- return sys_write(*fd, buf, len);
-}
-
-SMB_OFF_T transfer_file(int infd, int outfd, SMB_OFF_T n)
-{
- return (SMB_OFF_T)transfer_file_internal(&infd, &outfd, (size_t)n,
- sys_read_fn, sys_write_fn);
-}
-
/*******************************************************************
Sleep for a specified number of milliseconds.
********************************************************************/
diff --git a/source3/lib/util_transfer_file.c b/source3/lib/util_transfer_file.c
new file mode 100644
index 0000000000..1e3b76fc77
--- /dev/null
+++ b/source3/lib/util_transfer_file.c
@@ -0,0 +1,110 @@
+/*
+ * Unix SMB/CIFS implementation.
+ * Utility functions to transfer files.
+ *
+ * Copyright (C) Jeremy Allison 2001-2002
+ * Copyright (C) Michael Adam 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/>.
+ */
+
+
+#include <includes.h>
+
+/****************************************************************************
+ Transfer some data between two fd's.
+****************************************************************************/
+
+#ifndef TRANSFER_BUF_SIZE
+#define TRANSFER_BUF_SIZE 65536
+#endif
+
+
+ssize_t transfer_file_internal(void *in_file,
+ void *out_file,
+ size_t n,
+ ssize_t (*read_fn)(void *, void *, size_t),
+ ssize_t (*write_fn)(void *, const void *, size_t))
+{
+ char *buf;
+ size_t total = 0;
+ ssize_t read_ret;
+ ssize_t write_ret;
+ size_t num_to_read_thistime;
+ size_t num_written = 0;
+
+ if ((buf = SMB_MALLOC_ARRAY(char, TRANSFER_BUF_SIZE)) == NULL) {
+ return -1;
+ }
+
+ while (total < n) {
+ num_to_read_thistime = MIN((n - total), TRANSFER_BUF_SIZE);
+
+ read_ret = (*read_fn)(in_file, buf, num_to_read_thistime);
+ if (read_ret == -1) {
+ DEBUG(0,("transfer_file_internal: read failure. "
+ "Error = %s\n", strerror(errno) ));
+ SAFE_FREE(buf);
+ return -1;
+ }
+ if (read_ret == 0) {
+ break;
+ }
+
+ num_written = 0;
+
+ while (num_written < read_ret) {
+ write_ret = (*write_fn)(out_file, buf + num_written,
+ read_ret - num_written);
+
+ if (write_ret == -1) {
+ DEBUG(0,("transfer_file_internal: "
+ "write failure. Error = %s\n",
+ strerror(errno) ));
+ SAFE_FREE(buf);
+ return -1;
+ }
+ if (write_ret == 0) {
+ return (ssize_t)total;
+ }
+
+ num_written += (size_t)write_ret;
+ }
+
+ total += (size_t)read_ret;
+ }
+
+ SAFE_FREE(buf);
+ return (ssize_t)total;
+}
+
+static ssize_t sys_read_fn(void *file, void *buf, size_t len)
+{
+ int *fd = (int *)file;
+
+ return sys_read(*fd, buf, len);
+}
+
+static ssize_t sys_write_fn(void *file, const void *buf, size_t len)
+{
+ int *fd = (int *)file;
+
+ return sys_write(*fd, buf, len);
+}
+
+SMB_OFF_T transfer_file(int infd, int outfd, SMB_OFF_T n)
+{
+ return (SMB_OFF_T)transfer_file_internal(&infd, &outfd, (size_t)n,
+ sys_read_fn, sys_write_fn);
+}