marko10_000
/
btrfs-progs
forked from Mirrors/btrfs-progs
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

btrfs-progs: send-stream: rename single letter variable 

Signed-off-by: David Sterba <dsterba@suse.com>
master
David Sterba 2016-11-15 14:15:23 +01:00
parent eb4cfd8921
commit 7b794974ba
1 changed files with 113 additions and 113 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

226
send-stream.c
View File

@ -37,13 +37,13 @@ struct btrfs_send_stream {
void *user; void *user;
}; };
static int read_buf(struct btrfs_send_stream *s, void *buf, int len) static int read_buf(struct btrfs_send_stream *sctx, void *buf, int len)
{ {
int ret; int ret;
int pos = 0; int pos = 0;
while (pos < len) { while (pos < len) {
ret = read(s->fd, (char*)buf + pos, len - pos); ret = read(sctx->fd, (char*)buf + pos, len - pos);
if (ret < 0) { if (ret < 0) {
ret = -errno; ret = -errno;
error("read from stream failed: %s", error("read from stream failed: %s",
@ -65,9 +65,9 @@ out:
/* /*
* Reads a single command from kernel space and decodes the TLV's into * Reads a single command from kernel space and decodes the TLV's into
* s->cmd_attrs * sctx->cmd_attrs
*/ */
static int read_cmd(struct btrfs_send_stream *s) static int read_cmd(struct btrfs_send_stream *sctx)
{ {
int ret; int ret;
int cmd; int cmd;
@ -80,9 +80,9 @@ static int read_cmd(struct btrfs_send_stream *s)
u32 crc; u32 crc;
u32 crc2; u32 crc2;
memset(s->cmd_attrs, 0, sizeof(s->cmd_attrs)); memset(sctx->cmd_attrs, 0, sizeof(sctx->cmd_attrs));
ret = read_buf(s, s->read_buf, sizeof(*s->cmd_hdr)); ret = read_buf(sctx, sctx->read_buf, sizeof(*sctx->cmd_hdr));
if (ret < 0) if (ret < 0)
goto out; goto out;
if (ret) { if (ret) {
@ -91,12 +91,12 @@ static int read_cmd(struct btrfs_send_stream *s)
goto out; goto out;
} }
s->cmd_hdr = (struct btrfs_cmd_header *)s->read_buf; sctx->cmd_hdr = (struct btrfs_cmd_header *)sctx->read_buf;
cmd = le16_to_cpu(s->cmd_hdr->cmd); cmd = le16_to_cpu(sctx->cmd_hdr->cmd);
cmd_len = le32_to_cpu(s->cmd_hdr->len); cmd_len = le32_to_cpu(sctx->cmd_hdr->len);
data = s->read_buf + sizeof(*s->cmd_hdr); data = sctx->read_buf + sizeof(*sctx->cmd_hdr);
ret = read_buf(s, data, cmd_len); ret = read_buf(sctx, data, cmd_len);
if (ret < 0) if (ret < 0)
goto out; goto out;
if (ret) { if (ret) {
@ -105,11 +105,11 @@ static int read_cmd(struct btrfs_send_stream *s)
goto out; goto out;
} }
crc = le32_to_cpu(s->cmd_hdr->crc); crc = le32_to_cpu(sctx->cmd_hdr->crc);
s->cmd_hdr->crc = 0; sctx->cmd_hdr->crc = 0;
crc2 = crc32c(0, (unsigned char*)s->read_buf, crc2 = crc32c(0, (unsigned char*)sctx->read_buf,
sizeof(*s->cmd_hdr) + cmd_len); sizeof(*sctx->cmd_hdr) + cmd_len);
if (crc != crc2) { if (crc != crc2) {
ret = -EINVAL; ret = -EINVAL;
@ -131,20 +131,20 @@ static int read_cmd(struct btrfs_send_stream *s)
goto out; goto out;
} }
s->cmd_attrs[tlv_type] = tlv_hdr; sctx->cmd_attrs[tlv_type] = tlv_hdr;
data += sizeof(*tlv_hdr) + tlv_len; data += sizeof(*tlv_hdr) + tlv_len;
pos += sizeof(*tlv_hdr) + tlv_len; pos += sizeof(*tlv_hdr) + tlv_len;
} }
s->cmd = cmd; sctx->cmd = cmd;
ret = 0; ret = 0;
out: out:
return ret; return ret;
} }
static int tlv_get(struct btrfs_send_stream *s, int attr, void **data, int *len) static int tlv_get(struct btrfs_send_stream *sctx, int attr, void **data, int *len)
{ {
int ret; int ret;
struct btrfs_tlv_header *h; struct btrfs_tlv_header *h;
@ -155,7 +155,7 @@ static int tlv_get(struct btrfs_send_stream *s, int attr, void **data, int *len)
goto out; goto out;
} }
h = s->cmd_attrs[attr]; h = sctx->cmd_attrs[attr];
if (!h) { if (!h) {
error("attribute %d requested but not present", attr); error("attribute %d requested but not present", attr);
ret = -ENOENT; ret = -ENOENT;
@ -209,13 +209,13 @@ out:
#define TLV_GET_U32(s, attr, v) TLV_GET_INT(s, attr, 32, v) #define TLV_GET_U32(s, attr, v) TLV_GET_INT(s, attr, 32, v)
#define TLV_GET_U64(s, attr, v) TLV_GET_INT(s, attr, 64, v) #define TLV_GET_U64(s, attr, v) TLV_GET_INT(s, attr, 64, v)
static int tlv_get_string(struct btrfs_send_stream *s, int attr, char **str) static int tlv_get_string(struct btrfs_send_stream *sctx, int attr, char **str)
{ {
int ret; int ret;
void *data; void *data;
int len = 0; int len = 0;
TLV_GET(s, attr, &data, &len); TLV_GET(sctx, attr, &data, &len);
*str = malloc(len + 1); *str = malloc(len + 1);
if (!*str) if (!*str)
@ -231,14 +231,14 @@ tlv_get_failed:
#define TLV_GET_STRING(s, attr, str) \ #define TLV_GET_STRING(s, attr, str) \
__TLV_DO_WHILE_GOTO_FAIL(tlv_get_string(s, attr, str)) __TLV_DO_WHILE_GOTO_FAIL(tlv_get_string(s, attr, str))
static int tlv_get_timespec(struct btrfs_send_stream *s, static int tlv_get_timespec(struct btrfs_send_stream *sctx,
int attr, struct timespec *ts) int attr, struct timespec *ts)
{ {
int ret; int ret;
int len; int len;
struct btrfs_timespec *bts; struct btrfs_timespec *bts;
TLV_GET(s, attr, (void**)&bts, &len); TLV_GET(sctx, attr, (void**)&bts, &len);
TLV_CHECK_LEN(sizeof(*bts), len); TLV_CHECK_LEN(sizeof(*bts), len);
ts->tv_sec = le64_to_cpu(bts->sec); ts->tv_sec = le64_to_cpu(bts->sec);
@ -251,13 +251,13 @@ tlv_get_failed:
#define TLV_GET_TIMESPEC(s, attr, ts) \ #define TLV_GET_TIMESPEC(s, attr, ts) \
__TLV_DO_WHILE_GOTO_FAIL(tlv_get_timespec(s, attr, ts)) __TLV_DO_WHILE_GOTO_FAIL(tlv_get_timespec(s, attr, ts))
static int tlv_get_uuid(struct btrfs_send_stream *s, int attr, u8 *uuid) static int tlv_get_uuid(struct btrfs_send_stream *sctx, int attr, u8 *uuid)
{ {
int ret; int ret;
int len; int len;
void *data; void *data;
TLV_GET(s, attr, &data, &len); TLV_GET(sctx, attr, &data, &len);
TLV_CHECK_LEN(BTRFS_UUID_SIZE, len); TLV_CHECK_LEN(BTRFS_UUID_SIZE, len);
memcpy(uuid, data, BTRFS_UUID_SIZE); memcpy(uuid, data, BTRFS_UUID_SIZE);
@ -269,7 +269,7 @@ tlv_get_failed:
#define TLV_GET_UUID(s, attr, uuid) \ #define TLV_GET_UUID(s, attr, uuid) \
__TLV_DO_WHILE_GOTO_FAIL(tlv_get_uuid(s, attr, uuid)) __TLV_DO_WHILE_GOTO_FAIL(tlv_get_uuid(s, attr, uuid))
static int read_and_process_cmd(struct btrfs_send_stream *s) static int read_and_process_cmd(struct btrfs_send_stream *sctx)
{ {
int ret; int ret;
char *path = NULL; char *path = NULL;
@ -294,129 +294,129 @@ static int read_and_process_cmd(struct btrfs_send_stream *s)
int len; int len;
int xattr_len; int xattr_len;
ret = read_cmd(s); ret = read_cmd(sctx);
if (ret) if (ret)
goto out; goto out;
switch (s->cmd) { switch (sctx->cmd) {
case BTRFS_SEND_C_SUBVOL: case BTRFS_SEND_C_SUBVOL:
TLV_GET_STRING(s, BTRFS_SEND_A_PATH, &path); TLV_GET_STRING(sctx, BTRFS_SEND_A_PATH, &path);
TLV_GET_UUID(s, BTRFS_SEND_A_UUID, uuid); TLV_GET_UUID(sctx, BTRFS_SEND_A_UUID, uuid);
TLV_GET_U64(s, BTRFS_SEND_A_CTRANSID, &ctransid); TLV_GET_U64(sctx, BTRFS_SEND_A_CTRANSID, &ctransid);
ret = s->ops->subvol(path, uuid, ctransid, s->user); ret = sctx->ops->subvol(path, uuid, ctransid, sctx->user);
break; break;
case BTRFS_SEND_C_SNAPSHOT: case BTRFS_SEND_C_SNAPSHOT:
TLV_GET_STRING(s, BTRFS_SEND_A_PATH, &path); TLV_GET_STRING(sctx, BTRFS_SEND_A_PATH, &path);
TLV_GET_UUID(s, BTRFS_SEND_A_UUID, uuid); TLV_GET_UUID(sctx, BTRFS_SEND_A_UUID, uuid);
TLV_GET_U64(s, BTRFS_SEND_A_CTRANSID, &ctransid); TLV_GET_U64(sctx, BTRFS_SEND_A_CTRANSID, &ctransid);
TLV_GET_UUID(s, BTRFS_SEND_A_CLONE_UUID, clone_uuid); TLV_GET_UUID(sctx, BTRFS_SEND_A_CLONE_UUID, clone_uuid);
TLV_GET_U64(s, BTRFS_SEND_A_CLONE_CTRANSID, &clone_ctransid); TLV_GET_U64(sctx, BTRFS_SEND_A_CLONE_CTRANSID, &clone_ctransid);
ret = s->ops->snapshot(path, uuid, ctransid, clone_uuid, ret = sctx->ops->snapshot(path, uuid, ctransid, clone_uuid,
clone_ctransid, s->user); clone_ctransid, sctx->user);
break; break;
case BTRFS_SEND_C_MKFILE: case BTRFS_SEND_C_MKFILE:
TLV_GET_STRING(s, BTRFS_SEND_A_PATH, &path); TLV_GET_STRING(sctx, BTRFS_SEND_A_PATH, &path);
ret = s->ops->mkfile(path, s->user); ret = sctx->ops->mkfile(path, sctx->user);
break; break;
case BTRFS_SEND_C_MKDIR: case BTRFS_SEND_C_MKDIR:
TLV_GET_STRING(s, BTRFS_SEND_A_PATH, &path); TLV_GET_STRING(sctx, BTRFS_SEND_A_PATH, &path);
ret = s->ops->mkdir(path, s->user); ret = sctx->ops->mkdir(path, sctx->user);
break; break;
case BTRFS_SEND_C_MKNOD: case BTRFS_SEND_C_MKNOD:
TLV_GET_STRING(s, BTRFS_SEND_A_PATH, &path); TLV_GET_STRING(sctx, BTRFS_SEND_A_PATH, &path);
TLV_GET_U64(s, BTRFS_SEND_A_MODE, &mode); TLV_GET_U64(sctx, BTRFS_SEND_A_MODE, &mode);
TLV_GET_U64(s, BTRFS_SEND_A_RDEV, &dev); TLV_GET_U64(sctx, BTRFS_SEND_A_RDEV, &dev);
ret = s->ops->mknod(path, mode, dev, s->user); ret = sctx->ops->mknod(path, mode, dev, sctx->user);
break; break;
case BTRFS_SEND_C_MKFIFO: case BTRFS_SEND_C_MKFIFO:
TLV_GET_STRING(s, BTRFS_SEND_A_PATH, &path); TLV_GET_STRING(sctx, BTRFS_SEND_A_PATH, &path);
ret = s->ops->mkfifo(path, s->user); ret = sctx->ops->mkfifo(path, sctx->user);
break; break;
case BTRFS_SEND_C_MKSOCK: case BTRFS_SEND_C_MKSOCK:
TLV_GET_STRING(s, BTRFS_SEND_A_PATH, &path); TLV_GET_STRING(sctx, BTRFS_SEND_A_PATH, &path);
ret = s->ops->mksock(path, s->user); ret = sctx->ops->mksock(path, sctx->user);
break; break;
case BTRFS_SEND_C_SYMLINK: case BTRFS_SEND_C_SYMLINK:
TLV_GET_STRING(s, BTRFS_SEND_A_PATH, &path); TLV_GET_STRING(sctx, BTRFS_SEND_A_PATH, &path);
TLV_GET_STRING(s, BTRFS_SEND_A_PATH_LINK, &path_to); TLV_GET_STRING(sctx, BTRFS_SEND_A_PATH_LINK, &path_to);
ret = s->ops->symlink(path, path_to, s->user); ret = sctx->ops->symlink(path, path_to, sctx->user);
break; break;
case BTRFS_SEND_C_RENAME: case BTRFS_SEND_C_RENAME:
TLV_GET_STRING(s, BTRFS_SEND_A_PATH, &path); TLV_GET_STRING(sctx, BTRFS_SEND_A_PATH, &path);
TLV_GET_STRING(s, BTRFS_SEND_A_PATH_TO, &path_to); TLV_GET_STRING(sctx, BTRFS_SEND_A_PATH_TO, &path_to);
ret = s->ops->rename(path, path_to, s->user); ret = sctx->ops->rename(path, path_to, sctx->user);
break; break;
case BTRFS_SEND_C_LINK: case BTRFS_SEND_C_LINK:
TLV_GET_STRING(s, BTRFS_SEND_A_PATH, &path); TLV_GET_STRING(sctx, BTRFS_SEND_A_PATH, &path);
TLV_GET_STRING(s, BTRFS_SEND_A_PATH_LINK, &path_to); TLV_GET_STRING(sctx, BTRFS_SEND_A_PATH_LINK, &path_to);
ret = s->ops->link(path, path_to, s->user); ret = sctx->ops->link(path, path_to, sctx->user);
break; break;
case BTRFS_SEND_C_UNLINK: case BTRFS_SEND_C_UNLINK:
TLV_GET_STRING(s, BTRFS_SEND_A_PATH, &path); TLV_GET_STRING(sctx, BTRFS_SEND_A_PATH, &path);
ret = s->ops->unlink(path, s->user); ret = sctx->ops->unlink(path, sctx->user);
break; break;
case BTRFS_SEND_C_RMDIR: case BTRFS_SEND_C_RMDIR:
TLV_GET_STRING(s, BTRFS_SEND_A_PATH, &path); TLV_GET_STRING(sctx, BTRFS_SEND_A_PATH, &path);
ret = s->ops->rmdir(path, s->user); ret = sctx->ops->rmdir(path, sctx->user);
break; break;
case BTRFS_SEND_C_WRITE: case BTRFS_SEND_C_WRITE:
TLV_GET_STRING(s, BTRFS_SEND_A_PATH, &path); TLV_GET_STRING(sctx, BTRFS_SEND_A_PATH, &path);
TLV_GET_U64(s, BTRFS_SEND_A_FILE_OFFSET, &offset); TLV_GET_U64(sctx, BTRFS_SEND_A_FILE_OFFSET, &offset);
TLV_GET(s, BTRFS_SEND_A_DATA, &data, &len); TLV_GET(sctx, BTRFS_SEND_A_DATA, &data, &len);
ret = s->ops->write(path, data, offset, len, s->user); ret = sctx->ops->write(path, data, offset, len, sctx->user);
break; break;
case BTRFS_SEND_C_CLONE: case BTRFS_SEND_C_CLONE:
TLV_GET_STRING(s, BTRFS_SEND_A_PATH, &path); TLV_GET_STRING(sctx, BTRFS_SEND_A_PATH, &path);
TLV_GET_U64(s, BTRFS_SEND_A_FILE_OFFSET, &offset); TLV_GET_U64(sctx, BTRFS_SEND_A_FILE_OFFSET, &offset);
TLV_GET_U64(s, BTRFS_SEND_A_CLONE_LEN, &len); TLV_GET_U64(sctx, BTRFS_SEND_A_CLONE_LEN, &len);
TLV_GET_UUID(s, BTRFS_SEND_A_CLONE_UUID, clone_uuid); TLV_GET_UUID(sctx, BTRFS_SEND_A_CLONE_UUID, clone_uuid);
TLV_GET_U64(s, BTRFS_SEND_A_CLONE_CTRANSID, &clone_ctransid); TLV_GET_U64(sctx, BTRFS_SEND_A_CLONE_CTRANSID, &clone_ctransid);
TLV_GET_STRING(s, BTRFS_SEND_A_CLONE_PATH, &clone_path); TLV_GET_STRING(sctx, BTRFS_SEND_A_CLONE_PATH, &clone_path);
TLV_GET_U64(s, BTRFS_SEND_A_CLONE_OFFSET, &clone_offset); TLV_GET_U64(sctx, BTRFS_SEND_A_CLONE_OFFSET, &clone_offset);
ret = s->ops->clone(path, offset, len, clone_uuid, ret = sctx->ops->clone(path, offset, len, clone_uuid,
clone_ctransid, clone_path, clone_offset, clone_ctransid, clone_path, clone_offset,
s->user); sctx->user);
break; break;
case BTRFS_SEND_C_SET_XATTR: case BTRFS_SEND_C_SET_XATTR:
TLV_GET_STRING(s, BTRFS_SEND_A_PATH, &path); TLV_GET_STRING(sctx, BTRFS_SEND_A_PATH, &path);
TLV_GET_STRING(s, BTRFS_SEND_A_XATTR_NAME, &xattr_name); TLV_GET_STRING(sctx, BTRFS_SEND_A_XATTR_NAME, &xattr_name);
TLV_GET(s, BTRFS_SEND_A_XATTR_DATA, &xattr_data, &xattr_len); TLV_GET(sctx, BTRFS_SEND_A_XATTR_DATA, &xattr_data, &xattr_len);
ret = s->ops->set_xattr(path, xattr_name, xattr_data, ret = sctx->ops->set_xattr(path, xattr_name, xattr_data,
xattr_len, s->user); xattr_len, sctx->user);
break; break;
case BTRFS_SEND_C_REMOVE_XATTR: case BTRFS_SEND_C_REMOVE_XATTR:
TLV_GET_STRING(s, BTRFS_SEND_A_PATH, &path); TLV_GET_STRING(sctx, BTRFS_SEND_A_PATH, &path);
TLV_GET_STRING(s, BTRFS_SEND_A_XATTR_NAME, &xattr_name); TLV_GET_STRING(sctx, BTRFS_SEND_A_XATTR_NAME, &xattr_name);
ret = s->ops->remove_xattr(path, xattr_name, s->user); ret = sctx->ops->remove_xattr(path, xattr_name, sctx->user);
break; break;
case BTRFS_SEND_C_TRUNCATE: case BTRFS_SEND_C_TRUNCATE:
TLV_GET_STRING(s, BTRFS_SEND_A_PATH, &path); TLV_GET_STRING(sctx, BTRFS_SEND_A_PATH, &path);
TLV_GET_U64(s, BTRFS_SEND_A_SIZE, &tmp); TLV_GET_U64(sctx, BTRFS_SEND_A_SIZE, &tmp);
ret = s->ops->truncate(path, tmp, s->user); ret = sctx->ops->truncate(path, tmp, sctx->user);
break; break;
case BTRFS_SEND_C_CHMOD: case BTRFS_SEND_C_CHMOD:
TLV_GET_STRING(s, BTRFS_SEND_A_PATH, &path); TLV_GET_STRING(sctx, BTRFS_SEND_A_PATH, &path);
TLV_GET_U64(s, BTRFS_SEND_A_MODE, &tmp); TLV_GET_U64(sctx, BTRFS_SEND_A_MODE, &tmp);
ret = s->ops->chmod(path, tmp, s->user); ret = sctx->ops->chmod(path, tmp, sctx->user);
break; break;
case BTRFS_SEND_C_CHOWN: case BTRFS_SEND_C_CHOWN:
TLV_GET_STRING(s, BTRFS_SEND_A_PATH, &path); TLV_GET_STRING(sctx, BTRFS_SEND_A_PATH, &path);
TLV_GET_U64(s, BTRFS_SEND_A_UID, &tmp); TLV_GET_U64(sctx, BTRFS_SEND_A_UID, &tmp);
TLV_GET_U64(s, BTRFS_SEND_A_GID, &tmp2); TLV_GET_U64(sctx, BTRFS_SEND_A_GID, &tmp2);
ret = s->ops->chown(path, tmp, tmp2, s->user); ret = sctx->ops->chown(path, tmp, tmp2, sctx->user);
break; break;
case BTRFS_SEND_C_UTIMES: case BTRFS_SEND_C_UTIMES:
TLV_GET_STRING(s, BTRFS_SEND_A_PATH, &path); TLV_GET_STRING(sctx, BTRFS_SEND_A_PATH, &path);
TLV_GET_TIMESPEC(s, BTRFS_SEND_A_ATIME, &at); TLV_GET_TIMESPEC(sctx, BTRFS_SEND_A_ATIME, &at);
TLV_GET_TIMESPEC(s, BTRFS_SEND_A_MTIME, &mt); TLV_GET_TIMESPEC(sctx, BTRFS_SEND_A_MTIME, &mt);
TLV_GET_TIMESPEC(s, BTRFS_SEND_A_CTIME, &ct); TLV_GET_TIMESPEC(sctx, BTRFS_SEND_A_CTIME, &ct);
ret = s->ops->utimes(path, &at, &mt, &ct, s->user); ret = sctx->ops->utimes(path, &at, &mt, &ct, sctx->user);
break; break;
case BTRFS_SEND_C_UPDATE_EXTENT: case BTRFS_SEND_C_UPDATE_EXTENT:
TLV_GET_STRING(s, BTRFS_SEND_A_PATH, &path); TLV_GET_STRING(sctx, BTRFS_SEND_A_PATH, &path);
TLV_GET_U64(s, BTRFS_SEND_A_FILE_OFFSET, &offset); TLV_GET_U64(sctx, BTRFS_SEND_A_FILE_OFFSET, &offset);
TLV_GET_U64(s, BTRFS_SEND_A_SIZE, &tmp); TLV_GET_U64(sctx, BTRFS_SEND_A_SIZE, &tmp);
ret = s->ops->update_extent(path, offset, tmp, s->user); ret = sctx->ops->update_extent(path, offset, tmp, sctx->user);
break; break;
case BTRFS_SEND_C_END: case BTRFS_SEND_C_END:
ret = 1; ret = 1;
@ -443,16 +443,16 @@ int btrfs_read_and_process_send_stream(int fd,
u64 max_errors) u64 max_errors)
{ {
int ret; int ret;
struct btrfs_send_stream s; struct btrfs_send_stream sctx;
struct btrfs_stream_header hdr; struct btrfs_stream_header hdr;
u64 errors = 0; u64 errors = 0;
int last_err = 0; int last_err = 0;
s.fd = fd; sctx.fd = fd;
s.ops = ops; sctx.ops = ops;
s.user = user; sctx.user = user;
ret = read_buf(&s, &hdr, sizeof(hdr)); ret = read_buf(&sctx, &hdr, sizeof(hdr));
if (ret < 0) if (ret < 0)
goto out; goto out;
if (ret) { if (ret) {
@ -466,16 +466,16 @@ int btrfs_read_and_process_send_stream(int fd,
goto out; goto out;
} }
s.version = le32_to_cpu(hdr.version); sctx.version = le32_to_cpu(hdr.version);
if (s.version > BTRFS_SEND_STREAM_VERSION) { if (sctx.version > BTRFS_SEND_STREAM_VERSION) {
ret = -EINVAL; ret = -EINVAL;
error("stream version %d not supported, please use newer version", error("stream version %d not supported, please use newer version",
s.version); sctx.version);
goto out; goto out;
} }
while (1) { while (1) {
ret = read_and_process_cmd(&s); ret = read_and_process_cmd(&sctx);
if (ret < 0) { if (ret < 0) {
last_err = ret; last_err = ret;
errors++; errors++;