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#include "libacl-helper.h"
#include <acl/libacl.h>
#include <stdbool.h>
#include <stdlib.h>
#include <sys/acl.h>
int hakurei_acl_update_file_by_uid(const char *path_p, uid_t uid,
acl_perm_t *perms, size_t plen) {
int ret = -1;
bool v;
int i;
acl_t acl;
acl_entry_t entry;
acl_tag_t tag_type;
void *qualifier_p;
acl_permset_t permset;
acl = acl_get_file(path_p, ACL_TYPE_ACCESS);
if (acl == NULL)
goto out;
// prune entries by uid
for (i = acl_get_entry(acl, ACL_FIRST_ENTRY, &entry); i == 1;
i = acl_get_entry(acl, ACL_NEXT_ENTRY, &entry)) {
if (acl_get_tag_type(entry, &tag_type) != 0)
return -1;
if (tag_type != ACL_USER)
continue;
qualifier_p = acl_get_qualifier(entry);
if (qualifier_p == NULL)
return -1;
v = *(uid_t *)qualifier_p == uid;
acl_free(qualifier_p);
if (!v)
continue;
acl_delete_entry(acl, entry);
}
if (plen == 0)
goto set;
if (acl_create_entry(&acl, &entry) != 0)
goto out;
if (acl_get_permset(entry, &permset) != 0)
goto out;
for (i = 0; i < plen; i++) {
if (acl_add_perm(permset, perms[i]) != 0)
goto out;
}
if (acl_set_tag_type(entry, ACL_USER) != 0)
goto out;
if (acl_set_qualifier(entry, (void *)&uid) != 0)
goto out;
set:
if (acl_calc_mask(&acl) != 0)
goto out;
if (acl_valid(acl) != 0)
goto out;
if (acl_set_file(path_p, ACL_TYPE_ACCESS, acl) == 0)
ret = 0;
out:
free((void *)path_p);
if (acl != NULL)
acl_free((void *)acl);
return ret;
}
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