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libbe(3)/be(8): Drop WARNS overrides, fix all fallout

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Based on the idea that we shouldn't have all-new library and utility going
into base that need WARNS=1...

- Decent amount of constification
- Lots of parentheses
- Minor other nits
This commit is contained in:
Kyle Evans 2018-07-25 15:14:35 +00:00
parent ff8676cc4e
commit b29bf2f84e
9 changed files with 57 additions and 67 deletions
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2
cddl/lib/libbe/Makefile
View File

@ -11,8 +11,6 @@ SRCS= be.c be_access.c be_error.c be_info.c
INCS= be.h
MAN= libbe.3
WARNS?= 1
LIBADD+= zfs
LIBADD+= nvpair

64
lib/libbe/be.c
View File

@ -139,7 +139,7 @@ libbe_init(void)
zfs_iter_filesystems(rootds, be_locate_rootfs, lbh);
zfs_close(rootds);
rootds = NULL;
if (lbh->rootfs == NULL)
if (*lbh->rootfs == '\0')
goto err;
return (lbh);
@ -212,7 +212,7 @@ be_destroy(libbe_handle_t *lbh, char *name, int options)
return (set_error(lbh, BE_ERR_ZFSOPEN));
/* Check if mounted, unmount if force is specified */
if (mounted = zfs_is_mounted(fs, NULL)) {
if ((mounted = zfs_is_mounted(fs, NULL)) != 0) {
if (force)
zfs_unmount(fs, NULL, 0);
else
@ -230,7 +230,7 @@ be_destroy(libbe_handle_t *lbh, char *name, int options)
int
be_snapshot(libbe_handle_t *lbh, char *source, char *snap_name,
be_snapshot(libbe_handle_t *lbh, const char *source, const char *snap_name,
bool recursive, char *result)
{
char buf[BE_MAXPATHLEN];
@ -257,7 +257,7 @@ be_snapshot(libbe_handle_t *lbh, char *source, char *snap_name,
strcpy(result, strrchr(buf, '/') + 1);
}
if (err = zfs_snapshot(lbh->lzh, buf, recursive, NULL) != 0) {
if ((err = zfs_snapshot(lbh->lzh, buf, recursive, NULL)) != 0) {
switch (err) {
case EZFS_INVALIDNAME:
return (set_error(lbh, BE_ERR_INVALIDNAME));
@ -280,7 +280,7 @@ be_create(libbe_handle_t *lbh, char *name)
{
int err;
err = be_create_from_existing(lbh, name, (char *)be_active_path(lbh));
err = be_create_from_existing(lbh, name, be_active_path(lbh));
return (set_error(lbh, err));
}
@ -327,7 +327,6 @@ be_deep_clone(zfs_handle_t *ds, void *data)
int err;
char be_path[BE_MAXPATHLEN];
char snap_path[BE_MAXPATHLEN];
char mp[BE_MAXPATHLEN];
const char *dspath;
char *dsname;
zfs_handle_t *snap_hdl;
@ -364,7 +363,7 @@ be_deep_clone(zfs_handle_t *ds, void *data)
ZFS_TYPE_FILESYSTEM) == ZPROP_INVAL)
return (-1);
if (err = zfs_clone(snap_hdl, be_path, props)) {
if ((err = zfs_clone(snap_hdl, be_path, props)) != 0) {
switch (err) {
case EZFS_SUCCESS:
err = BE_ERR_SUCCESS;
@ -392,23 +391,25 @@ be_deep_clone(zfs_handle_t *ds, void *data)
* Create the boot environment from pre-existing snapshot
*/
int
be_create_from_existing_snap(libbe_handle_t *lbh, char *name, char *snap)
be_create_from_existing_snap(libbe_handle_t *lbh, const char *name,
const char *snap)
{
int err;
char be_path[BE_MAXPATHLEN];
char snap_path[BE_MAXPATHLEN];
char *parentname, *bename, *snapname;
const char *bename;
char *parentname, *snapname;
zfs_handle_t *parent_hdl;
struct libbe_deep_clone sdc;
if (err = be_validate_name(lbh, name))
if ((err = be_validate_name(lbh, name)) != 0)
return (set_error(lbh, err));
if (err = be_root_concat(lbh, snap, snap_path))
if ((err = be_root_concat(lbh, snap, snap_path)) != 0)
return (set_error(lbh, err));
if (err = be_validate_snap(lbh, snap_path))
if ((err = be_validate_snap(lbh, snap_path)) != 0)
return (set_error(lbh, err));
if (err = be_root_concat(lbh, name, be_path))
if ((err = be_root_concat(lbh, name, be_path)) != 0)
return (set_error(lbh, err));
if ((bename = strrchr(name, '/')) == NULL)
@ -444,7 +445,7 @@ be_create_from_existing_snap(libbe_handle_t *lbh, char *name, char *snap)
* Create a boot environment from an existing boot environment
*/
int
be_create_from_existing(libbe_handle_t *lbh, char *name, char *old)
be_create_from_existing(libbe_handle_t *lbh, const char *name, const char *old)
{
int err;
char buf[BE_MAXPATHLEN];
@ -464,12 +465,11 @@ be_create_from_existing(libbe_handle_t *lbh, char *name, char *old)
* failure. Does not set the internal library error state.
*/
int
be_validate_snap(libbe_handle_t *lbh, char *snap_name)
be_validate_snap(libbe_handle_t *lbh, const char *snap_name)
{
zfs_handle_t *zfs_hdl;
char buf[BE_MAXPATHLEN];
char *delim_pos;
char *mountpoint;
int err = BE_ERR_SUCCESS;
if (strlen(snap_name) >= BE_MAXPATHLEN)
@ -490,8 +490,8 @@ be_validate_snap(libbe_handle_t *lbh, char *snap_name)
zfs_open(lbh->lzh, buf, ZFS_TYPE_DATASET)) == NULL)
return (BE_ERR_NOORIGIN);
if (err = zfs_prop_get(zfs_hdl, ZFS_PROP_MOUNTPOINT, buf, BE_MAXPATHLEN,
NULL, NULL, 0, 1))
if ((err = zfs_prop_get(zfs_hdl, ZFS_PROP_MOUNTPOINT, buf, BE_MAXPATHLEN,
NULL, NULL, 0, 1)) != 0)
err = BE_ERR_INVORIGIN;
if ((err != 0) && (strncmp(buf, "/", BE_MAXPATHLEN) != 0))
@ -512,7 +512,7 @@ be_validate_snap(libbe_handle_t *lbh, char *snap_name)
* zfs_be_root. Does not set internal library error state.
*/
int
be_root_concat(libbe_handle_t *lbh, char *name, char *result)
be_root_concat(libbe_handle_t *lbh, const char *name, char *result)
{
size_t name_len, root_len;
@ -545,7 +545,7 @@ be_root_concat(libbe_handle_t *lbh, char *name, char *result)
* Does not set internal library error state.
*/
int
be_validate_name(libbe_handle_t *lbh, char *name)
be_validate_name(libbe_handle_t *lbh __unused, const char *name)
{
for (int i = 0; *name; i++) {
char c = *(name++);
@ -569,12 +569,12 @@ be_rename(libbe_handle_t *lbh, char *old, char *new)
zfs_handle_t *zfs_hdl;
int err;
if (err = be_root_concat(lbh, old, full_old))
if ((err = be_root_concat(lbh, old, full_old)) != 0)
return (set_error(lbh, err));
if (err = be_root_concat(lbh, new, full_new))
if ((err = be_root_concat(lbh, new, full_new)) != 0)
return (set_error(lbh, err));
if (be_validate_name(lbh, new))
if (be_validate_name(lbh, new) != 0)
return (BE_ERR_UNKNOWN);
/* XXX TODO set and return correct error */
@ -621,7 +621,7 @@ be_export(libbe_handle_t *lbh, char *bootenv, int fd)
zfs_handle_t *zfs;
int err;
if (err = be_snapshot(lbh, bootenv, NULL, true, snap_name))
if ((err = be_snapshot(lbh, bootenv, NULL, true, snap_name)) != 0)
/* XXX TODO error handle */
return (-1);
@ -648,7 +648,7 @@ be_import(libbe_handle_t *lbh, char *bootenv, int fd)
* XXX TODO: this is a very likely name for someone to already have
* used... we should avoid it.
*/
if (err = be_root_concat(lbh, "be_import_temp", buf))
if ((err = be_root_concat(lbh, "be_import_temp", buf)) != 0)
/* XXX TODO error handle */
return (-1);
@ -658,7 +658,7 @@ be_import(libbe_handle_t *lbh, char *bootenv, int fd)
"@%F-%T", localtime(&rawtime));
/* lzc_receive(SNAPNAME, PROPS, ORIGIN, FORCE, fd)) { */
if (err = lzc_receive(buf, NULL, NULL, false, fd)) {
if ((err = lzc_receive(buf, NULL, NULL, false, fd)) != 0) {
/* TODO: go through libzfs_core's recv_impl and find returned
* errors and set appropriate BE_ERR
* edit: errors are not in libzfs_core, my assumption is
@ -737,8 +737,8 @@ be_add_child(libbe_handle_t *lbh, char *child_path, bool cp_if_exists)
nvlist_add_string(props, "mountpoint", child_path);
/* Create */
if (err =
zfs_create(lbh->lzh, active, ZFS_TYPE_DATASET, props))
if ((err =
zfs_create(lbh->lzh, active, ZFS_TYPE_DATASET, props)) != 0)
/* XXX TODO handle error */
return (-1);
nvlist_free(props);
@ -749,7 +749,7 @@ be_add_child(libbe_handle_t *lbh, char *child_path, bool cp_if_exists)
return (-1);
/* Set props */
if (err = zfs_prop_set(zfs, "canmount", "noauto"))
if ((err = zfs_prop_set(zfs, "canmount", "noauto")) != 0)
/* TODO handle error */
return (-1);
} else if (cp_if_exists) {
@ -767,7 +767,7 @@ be_add_child(libbe_handle_t *lbh, char *child_path, bool cp_if_exists)
snprintf(buf, BE_MAXPATHLEN, "%s@%ld", child_path, snap_name);
if (err = zfs_snapshot(lbh->lzh, buf, false, NULL))
if ((err = zfs_snapshot(lbh->lzh, buf, false, NULL)) != 0)
/* XXX TODO correct error */
return (-1);
@ -777,7 +777,7 @@ be_add_child(libbe_handle_t *lbh, char *child_path, bool cp_if_exists)
/* XXX TODO correct error */
return (-1);
if (err = zfs_clone(zfs, active, NULL))
if ((err = zfs_clone(zfs, active, NULL)) != 0)
/* XXX TODO correct error */
return (-1);
@ -797,8 +797,6 @@ be_activate(libbe_handle_t *lbh, char *bootenv, bool temporary)
char buf[BE_MAXPATHLEN];
uint64_t pool_guid;
uint64_t vdev_guid;
int zfs_fd;
int len;
int err;
be_root_concat(lbh, bootenv, be_path);

13
lib/libbe/be.h
View File

@ -67,14 +67,15 @@ const char *be_nextboot_path(libbe_handle_t *);
const char *be_root_path(libbe_handle_t *);
int be_get_bootenv_props(libbe_handle_t *, nvlist_t *);
void be_prop_list_free(nvlist_t *be_list);
int be_activate(libbe_handle_t *, char *, bool);
/* Bootenv creation functions */
int be_create(libbe_handle_t *, char *);
int be_create_from_existing(libbe_handle_t *, char *, char *);
int be_create_from_existing_snap(libbe_handle_t *, char *, char *);
int be_snapshot(libbe_handle_t *, char *, char *, bool, char *);
int be_create_from_existing(libbe_handle_t *, const char *, const char *);
int be_create_from_existing_snap(libbe_handle_t *, const char *, const char *);
int be_snapshot(libbe_handle_t *, const char *, const char *, bool, char *);
/* Bootenv manipulation functions */
int be_rename(libbe_handle_t *, char *, char *);
@ -103,9 +104,9 @@ const char *libbe_error_description(libbe_handle_t *);
void libbe_print_on_error(libbe_handle_t *, bool);
/* Utility Functions */
int be_root_concat(libbe_handle_t *, char *, char *);
int be_validate_name(libbe_handle_t *, char *);
int be_validate_snap(libbe_handle_t *, char *);
int be_root_concat(libbe_handle_t *, const char *, char *);
int be_validate_name(libbe_handle_t * __unused, const char *);
int be_validate_snap(libbe_handle_t *, const char *);
bool be_exists(libbe_handle_t *, char *);
int be_export(libbe_handle_t *, char *, int fd);

11
lib/libbe/be_access.c
View File

@ -38,12 +38,11 @@ be_mount(libbe_handle_t *lbh, char *bootenv, char *mountpoint, int flags,
{
char be[BE_MAXPATHLEN];
char mnt_temp[BE_MAXPATHLEN];
zfs_handle_t *zfs_hdl;
char *path;
int mntflags;
int err;
if (err = be_root_concat(lbh, bootenv, be))
if ((err = be_root_concat(lbh, bootenv, be)) != 0)
return (set_error(lbh, err));
if (!be_exists(lbh, bootenv))
@ -63,8 +62,8 @@ be_mount(libbe_handle_t *lbh, char *bootenv, char *mountpoint, int flags,
}
char opt = '\0';
if (err = zmount(be, (mountpoint == NULL) ? mnt_temp : mountpoint,
mntflags, MNTTYPE_ZFS, NULL, 0, &opt, 1))
if ((err = zmount(be, (mountpoint == NULL) ? mnt_temp : mountpoint,
mntflags, __DECONST(char *, MNTTYPE_ZFS), NULL, 0, &opt, 1)) != 0)
/*
* XXX TODO: zmount returns the nmount error, look into what
* kind of errors we can report from that
@ -90,7 +89,7 @@ be_unmount(libbe_handle_t *lbh, char *bootenv, int flags)
int mntsize;
char *mntpath;
if (err = be_root_concat(lbh, bootenv, be))
if ((err = be_root_concat(lbh, bootenv, be)) != 0)
return (set_error(lbh, err));
if ((mntsize = getmntinfo(&mntbuf, MNT_NOWAIT)) == 0)
@ -114,7 +113,7 @@ be_unmount(libbe_handle_t *lbh, char *bootenv, int flags)
mntflags = (flags & BE_MNT_FORCE) ? MNT_FORCE : 0;
if (err = unmount(mntpath, mntflags))
if ((err = unmount(mntpath, mntflags)) != 0)
/* XXX TODO correct error */
return (set_error(lbh, BE_ERR_NOMOUNT));

6
lib/libbe/be_impl.h
View File

@ -46,9 +46,9 @@ struct libbe_handle {
struct libbe_deep_clone {
libbe_handle_t *lbh;
char *bename;
char *snapname;
char *be_root;
const char *bename;
const char *snapname;
const char *be_root;
};
struct libbe_dccb {

2
lib/libbe/be_info.c
View File

@ -119,7 +119,7 @@ prop_list_builder_cb(zfs_handle_t *zfs_hdl, void *data_p)
libbe_handle_t *lbh;
nvlist_t *props;
const char *dataset, *name;
boolean_t mounted, active, nextboot;
boolean_t mounted;
/*
* XXX TODO:

10
lib/libbe/libbe.3
View File

@ -30,7 +30,7 @@
.\"
.\" $FreeBSD$
.\"
.Dd August 28, 2017
.Dd July 25, 2018
.Dt LIBBE 3
.Os
.Sh NAME
@ -76,7 +76,7 @@ of state to be retained, such as errors from previous operations.
.Fn be_create "libbe_handle_t *, char *" ;
.Pp
.Ft int
.Fn be_create_from_existing "libbe_handle_t *, char *, char *" ;
.Fn be_create_from_existing "libbe_handle_t *, const char *, const char *" ;
.Pp
.Ft int
.Fn be_rename "libbe_handle_t *, char *, char *" ;
@ -109,13 +109,13 @@ of state to be retained, such as errors from previous operations.
.Fn libbe_print_on_error "libbe_handle_t *, bool" ;
.Pp
.Ft int
.Fn be_root_concat "libbe_handle_t *, char *, char *" ;
.Fn be_root_concat "libbe_handle_t *, const char *, char *" ;
.Pp
.Ft int
.Fn be_validate_name "libbe_handle_t *, char *" ;
.Fn be_validate_name "libbe_handle_t *, const char *" ;
.Pp
.Ft int
.Fn be_validate_snap "libbe_handle_t *, char *" ;
.Fn be_validate_snap "libbe_handle_t *, const char *" ;
.Pp
.Ft bool
.Fn be_exists "libbe_handle_t *, char *" ;

2
sbin/bectl/Makefile
View File

@ -1,7 +1,6 @@
# $FreeBSD$
PROG= bectl
WARNS?= 1
MAN= bectl.8
LIBADD+= be
@ -9,7 +8,6 @@ LIBADD+= nvpair
CFLAGS+= -I${SRCTOP}/cddl/contrib/opensolaris/lib/libzfs/common
CFLAGS+= -I${SRCTOP}/sys/cddl/compat/opensolaris
CFLAGS+= -I${SRCTOP}/sys/cddl/contrib/opensolaris/uts/common
CFLAGS+= -DNEED_SOLARIS_BOOLEAN

14
sbin/bectl/bectl.c
View File

@ -54,7 +54,7 @@ static int bectl_cmd_rename(int argc, char *argv[]);
static int bectl_cmd_unjail(int argc, char *argv[]);
static int bectl_cmd_unmount(int argc, char *argv[]);
libbe_handle_t *be;
static libbe_handle_t *be;
static int
usage(bool explicit)
@ -108,7 +108,7 @@ static struct command_map_entry command_map[] =
};
static int
get_cmd_index(char *cmd, int *index)
get_cmd_index(const char *cmd, int *index)
{
int map_size;
@ -127,7 +127,6 @@ get_cmd_index(char *cmd, int *index)
static int
bectl_cmd_activate(int argc, char *argv[])
{
char *bootenv;
int err, opt;
bool temp;
@ -210,7 +209,7 @@ bectl_cmd_create(int argc, char *argv[])
} else {
if ((snapname = strchr(bootenv, '@')) != NULL) {
*(snapname++) = '\0';
if ((err = be_snapshot(be, (char *)be_active_path(be),
if ((err = be_snapshot(be, be_active_path(be),
snapname, true, NULL)) != BE_ERR_SUCCESS)
fprintf(stderr, "failed to create snapshot\n");
asprintf(&source, "%s@%s", be_active_path(be), snapname);
@ -242,7 +241,6 @@ static int
bectl_cmd_export(int argc, char *argv[])
{
char *bootenv;
int opt;
if (argc == 1) {
fprintf(stderr, "bectl export: missing boot environment name\n");
@ -299,7 +297,6 @@ bectl_cmd_import(int argc, char *argv[])
static int
bectl_cmd_add(int argc, char *argv[])
{
char *bootenv;
if (argc < 2) {
fprintf(stderr, "bectl add: must provide at least one path\n");
@ -358,7 +355,7 @@ bectl_cmd_jail(int argc, char *argv[])
char *bootenv;
char mnt_loc[BE_MAXPATHLEN];
char buf[BE_MAXPATHLEN*2];
int err, jid;
int err;
/* struct jail be_jail = { 0 }; */
@ -418,7 +415,6 @@ static int
bectl_cmd_list(int argc, char *argv[])
{
nvlist_t *props;
char *bootenv;
int opt;
bool show_all_datasets, show_space, hide_headers, show_snaps;
@ -625,7 +621,7 @@ bectl_cmd_unmount(int argc, char *argv[])
int
main(int argc, char *argv[])
{
char *command;
const char *command;
int command_index, rc;
if (argc < 2) {