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Improve error message for zfs create with @ or # in name

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Reorder the `zfs create` error messages in order to return the most
specific one first.  If none of them apply then an expanded version of
the invalid name message is used.

Reviewed by: Tom Caputi <tcaputi@datto.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed by: Matt Ahrens <mahrens@delphix.com>
Signed-off-by: Damian Wojsław <damian@wojslaw.pl>
Closes #8155 
Closes #8352
This commit is contained in:
Damian Wojsław 2019-02-25 20:20:07 +01:00 committed by Brian Behlendorf
parent ba7b05cb25
commit e065034563
1 changed files with 39 additions and 38 deletions
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77
lib/libzfs/libzfs_dataset.c
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@ -108,6 +108,43 @@ zfs_validate_name(libzfs_handle_t *hdl, const char *path, int type,
namecheck_err_t why;
char what;
if (!(type & ZFS_TYPE_SNAPSHOT) && strchr(path, '@') != NULL) {
if (hdl != NULL)
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"snapshot delimiter '@' is not expected here"));
return (0);
}
if (type == ZFS_TYPE_SNAPSHOT && strchr(path, '@') == NULL) {
if (hdl != NULL)
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"missing '@' delimiter in snapshot name, "
"did you mean to use -r?"));
return (0);
}
if (!(type & ZFS_TYPE_BOOKMARK) && strchr(path, '#') != NULL) {
if (hdl != NULL)
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"bookmark delimiter '#' is not expected here"));
return (0);
}
if (type == ZFS_TYPE_BOOKMARK && strchr(path, '#') == NULL) {
if (hdl != NULL)
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"missing '#' delimiter in bookmark name, "
"did you mean to use -r?"));
return (0);
}
if (modifying && strchr(path, '%') != NULL) {
if (hdl != NULL)
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"invalid character %c in name"), '%');
return (0);
}
if (entity_namecheck(path, &why, &what) != 0) {
if (hdl != NULL) {
switch (why) {
@ -123,7 +160,8 @@ zfs_validate_name(libzfs_handle_t *hdl, const char *path, int type,
case NAME_ERR_EMPTY_COMPONENT:
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"empty component in name"));
"empty component or misplaced '@'"
" or '#' delimiter in name"));
break;
case NAME_ERR_TRAILING_SLASH:
@ -168,43 +206,6 @@ zfs_validate_name(libzfs_handle_t *hdl, const char *path, int type,
return (0);
}
if (!(type & ZFS_TYPE_SNAPSHOT) && strchr(path, '@') != NULL) {
if (hdl != NULL)
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"snapshot delimiter '@' is not expected here"));
return (0);
}
if (type == ZFS_TYPE_SNAPSHOT && strchr(path, '@') == NULL) {
if (hdl != NULL)
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"missing '@' delimiter in snapshot name, "
"did you mean to use -r?"));
return (0);
}
if (!(type & ZFS_TYPE_BOOKMARK) && strchr(path, '#') != NULL) {
if (hdl != NULL)
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"bookmark delimiter '#' is not expected here"));
return (0);
}
if (type == ZFS_TYPE_BOOKMARK && strchr(path, '#') == NULL) {
if (hdl != NULL)
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"missing '#' delimiter in bookmark name, "
"did you mean to use -r?"));
return (0);
}
if (modifying && strchr(path, '%') != NULL) {
if (hdl != NULL)
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"invalid character %c in name"), '%');
return (0);
}
return (-1);
}