int
preserve_dir_acls(struct stat *fs, char *source_dir, char *dest_dir)
{
acl_t (*aclgetf)(const char *, acl_type_t);
int (*aclsetf)(const char *, acl_type_t, acl_t);
struct acl *aclp;
acl_t acl;
acl_type_t acl_type;
int acl_supported = 0, ret, trivial;
ret = pathconf(source_dir, _PC_ACL_NFS4);
if (ret > 0) {
acl_supported = 1;
acl_type = ACL_TYPE_NFS4;
} else if (ret < 0 && errno != EINVAL) {
warn("fpathconf(..., _PC_ACL_NFS4) failed for %s", source_dir);
return (1);
}
if (acl_supported == 0) {
ret = pathconf(source_dir, _PC_ACL_EXTENDED);
if (ret > 0) {
acl_supported = 1;
acl_type = ACL_TYPE_ACCESS;
} else if (ret < 0 && errno != EINVAL) {
warn("fpathconf(..., _PC_ACL_EXTENDED) failed for %s",
source_dir);
return (1);
}
}
if (acl_supported == 0)
return (0);
/*
* If the file is a link we will not follow it
*/
if (S_ISLNK(fs->st_mode)) {
aclgetf = acl_get_link_np;
aclsetf = acl_set_link_np;
} else {
aclgetf = acl_get_file;
aclsetf = acl_set_file;
}
if (acl_type == ACL_TYPE_ACCESS) {
/*
* Even if there is no ACL_TYPE_DEFAULT entry here, a zero
* size ACL will be returned. So it is not safe to simply
* check the pointer to see if the default ACL is present.
*/
acl = aclgetf(source_dir, ACL_TYPE_DEFAULT);
if (acl == NULL) {
warn("failed to get default acl entries on %s",
source_dir);
return (1);
}
aclp = &acl->ats_acl;
if (aclp->acl_cnt != 0 && aclsetf(dest_dir,
ACL_TYPE_DEFAULT, acl) < 0) {
warn("failed to set default acl entries on %s",
dest_dir);
acl_free(acl);
return (1);
}
acl_free(acl);
}
acl = aclgetf(source_dir, acl_type);
if (acl == NULL) {
warn("failed to get acl entries on %s", source_dir);
return (1);
}
if (acl_is_trivial_np(acl, &trivial)) {
warn("acl_is_trivial() failed on %s", source_dir);
acl_free(acl);
return (1);
}
if (trivial) {
acl_free(acl);
return (0);
}
if (aclsetf(dest_dir, acl_type, acl) < 0) {
warn("failed to set acl entries on %s", dest_dir);
acl_free(acl);
return (1);
}
acl_free(acl);
return (0);
}
int preserve_dir_acls(struct stat *fs, char *source_dir, char *dest_dir) {
acl_t (*aclgetf)(const char *, acl_type_t);
int (*aclsetf)(const char *, acl_type_t, acl_t);
struct acl *aclp;
acl_t acl;
acl_type_t acl_type;
int acl_supported = 0, ret, trivial;
ret = pathconf(source_dir, _PC_ACL_NFS4);
if (ret > 0) {
acl_supported = 1;
acl_type = ACL_TYPE_NFS4;
} else if (ret < 0 && errno != EINVAL) {
warn("fpathconf(..., _PC_ACL_NFS4) failed for %s", source_dir);
return (1);
}
if (acl_supported == 0) {
ret = pathconf(source_dir, _PC_ACL_EXTENDED);
if (ret > 0) {
acl_supported = 1;
acl_type = ACL_TYPE_ACCESS;
} else if (ret < 0 && errno != EINVAL) {
warn("fpathconf(..., _PC_ACL_EXTENDED) failed for %s", source_dir);
return (1);
}
}
if (acl_supported == 0)
return (0);
if (S_ISLNK(fs->st_mode)) {
aclgetf = acl_get_link_np;
aclsetf = acl_set_link_np;
} else {
aclgetf = acl_get_file;
aclsetf = acl_set_file;
}
if (acl_type == ACL_TYPE_ACCESS) {
acl = aclgetf(source_dir, ACL_TYPE_DEFAULT);
if (acl == NULL) {
warn("failed to get default acl entries on %s", source_dir);
return (1);
}
aclp = &acl->ats_acl;
if (aclp->acl_cnt != 0 && aclsetf(dest_dir, ACL_TYPE_DEFAULT, acl) < 0) {
warn("failed to set default acl entries on %s", dest_dir);
acl_free(acl);
return (1);
}
acl_free(acl);
}
acl = aclgetf(source_dir, acl_type);
if (acl == NULL) {
warn("failed to get acl entries on %s", source_dir);
return (1);
}
if (acl_is_trivial_np(acl, &trivial)) {
warn("acl_is_trivial() failed on %s", source_dir);
acl_free(acl);
return (1);
}
if (trivial) {
acl_free(acl);
return (0);
}
if (aclsetf(dest_dir, acl_type, acl) < 0) {
warn("failed to set acl entries on %s", dest_dir);
acl_free(acl);
return (1);
}
acl_free(acl);
return (0);
}