bddcd9b095
- Every non-const pointer converts automatically to void *. - Every pointer converts automatically to void *. - void * converts to any other pointer. - const void * converts to any other const pointer. - Integer variables convert to each other. I changed the declaration of a few variables in order to allow removing a cast. However, I didn't attempt to edit casts inside comparisons, since they are very delicate. I also kept casts in variadic functions, since they are necessary, and in allocation functions, because I have other plans for them. I also changed a few casts to int that are better as ptrdiff_t. This change has triggered some warnings about const correctness issues, which have also been fixed in this patch (see for example src/login.c). Signed-off-by: Alejandro Colomar <alx@kernel.org>
109 lines
2.3 KiB
C
109 lines
2.3 KiB
C
/*
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* SPDX-FileCopyrightText: 2020 Serge Hallyn
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#include <config.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <errno.h>
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#include <stdlib.h>
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#include <string.h>
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#include <pwd.h>
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#include <stdbool.h>
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#include "subordinateio.h"
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#include "idmapping.h"
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#include "subid.h"
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#include "shadowlog.h"
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bool subid_init(const char *progname, FILE * logfd)
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{
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FILE *shadow_logfd;
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if (progname) {
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progname = strdup(progname);
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if (!progname)
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return false;
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log_set_progname(progname);
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} else {
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log_set_progname("(libsubid)");
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}
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if (logfd) {
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log_set_logfd(logfd);
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return true;
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}
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shadow_logfd = fopen("/dev/null", "w");
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if (!shadow_logfd) {
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log_set_logfd(stderr);
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return false;
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}
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log_set_logfd(shadow_logfd);
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return true;
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}
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static
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int get_subid_ranges(const char *owner, enum subid_type id_type, struct subid_range **ranges)
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{
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return list_owner_ranges(owner, id_type, ranges);
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}
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int subid_get_uid_ranges(const char *owner, struct subid_range **ranges)
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{
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return get_subid_ranges(owner, ID_TYPE_UID, ranges);
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}
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int subid_get_gid_ranges(const char *owner, struct subid_range **ranges)
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{
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return get_subid_ranges(owner, ID_TYPE_GID, ranges);
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}
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static
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int get_subid_owner(unsigned long id, enum subid_type id_type, uid_t **owner)
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{
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return find_subid_owners(id, id_type, owner);
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}
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int subid_get_uid_owners(uid_t uid, uid_t **owner)
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{
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return get_subid_owner(uid, ID_TYPE_UID, owner);
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}
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int subid_get_gid_owners(gid_t gid, uid_t **owner)
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{
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return get_subid_owner(gid, ID_TYPE_GID, owner);
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}
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static
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bool grant_subid_range(struct subordinate_range *range, bool reuse,
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enum subid_type id_type)
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{
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return new_subid_range(range, id_type, reuse);
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}
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bool subid_grant_uid_range(struct subordinate_range *range, bool reuse)
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{
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return grant_subid_range(range, reuse, ID_TYPE_UID);
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}
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bool subid_grant_gid_range(struct subordinate_range *range, bool reuse)
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{
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return grant_subid_range(range, reuse, ID_TYPE_GID);
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}
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static
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bool ungrant_subid_range(struct subordinate_range *range, enum subid_type id_type)
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{
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return release_subid_range(range, id_type);
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}
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bool subid_ungrant_uid_range(struct subordinate_range *range)
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{
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return ungrant_subid_range(range, ID_TYPE_UID);
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}
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bool subid_ungrant_gid_range(struct subordinate_range *range)
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{
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return ungrant_subid_range(range, ID_TYPE_GID);
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}
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