sudo/plugins/sudoers/sudoers_ctx_free.c

89 lines
2.6 KiB
C

/*
* SPDX-License-Identifier: ISC
*
* Copyright (c) 2023-2024 Todd C. Miller <Todd.Miller@sudo.ws>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/*
* This is an open source non-commercial project. Dear PVS-Studio, please check it.
* PVS-Studio Static Code Analyzer for C, C++ and C#: http://www.viva64.com
*/
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sudoers.h>
/*
* Free memory allocated for struct sudoers_context.
*/
void
sudoers_ctx_free(struct sudoers_context *ctx)
{
debug_decl(sudoers_ctx_free, SUDOERS_DEBUG_PLUGIN);
/* Free remaining references to password and group entries. */
if (ctx->user.pw != NULL)
sudo_pw_delref(ctx->user.pw);
if (ctx->user.gid_list != NULL)
sudo_gidlist_delref(ctx->user.gid_list);
/* Free dynamic contents of user_ctx. */
free(ctx->user.cwd);
free(ctx->user.name);
if (ctx->user.ttypath != NULL)
free(ctx->user.ttypath);
else
free(ctx->user.tty);
if (ctx->user.shost != ctx->user.host)
free(ctx->user.shost);
free(ctx->user.host);
free(ctx->user.cmnd);
canon_path_free(ctx->user.cmnd_dir);
free(ctx->user.cmnd_args);
free(ctx->user.cmnd_list);
free(ctx->user.cmnd_stat);
/* Free remaining references to password and group entries. */
if (ctx->runas.pw != NULL)
sudo_pw_delref(ctx->runas.pw);
if (ctx->runas.gr != NULL)
sudo_gr_delref(ctx->runas.gr);
if (ctx->runas.list_pw != NULL)
sudo_pw_delref(ctx->runas.list_pw);
/* Free dynamic contents of ctx->runas. */
free(ctx->runas.cmnd);
free(ctx->runas.cmnd_saved);
if (ctx->runas.shost != ctx->runas.host)
free(ctx->runas.shost);
free(ctx->runas.host);
free(ctx->runas.role);
free(ctx->runas.type);
free(ctx->runas.apparmor_profile);
free(ctx->runas.privs);
free(ctx->runas.limitprivs);
/* Free dynamic contents of ctx. */
free(ctx->source);
memset(ctx, 0, sizeof(*ctx));
debug_return;
}