/src/sudo/plugins/sudoers/sudoers_ctx_free.c

Source
/*
 * 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;
}

Line	Count	Source
1		/*
2		* SPDX-License-Identifier: ISC
3		*
4		* Copyright (c) 2023-2024 Todd C. Miller <Todd.Miller@sudo.ws>
5		*
6		* Permission to use, copy, modify, and distribute this software for any
7		* purpose with or without fee is hereby granted, provided that the above
8		* copyright notice and this permission notice appear in all copies.
9		*
10		* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11		* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12		* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13		* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14		* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15		* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16		* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17		*/
18
19		/*
20		* This is an open source non-commercial project. Dear PVS-Studio, please check it.
21		* PVS-Studio Static Code Analyzer for C, C++ and C#: http://www.viva64.com
22		*/
23
24		#include <config.h>
25
26		#include <stdio.h>
27		#include <stdlib.h>
28		#include <string.h>
29
30		#include <sudoers.h>
31
32		/*
33		* Free memory allocated for struct sudoers_context.
34		*/
35		void
36		sudoers_ctx_free(struct sudoers_context *ctx)
37	27.3k	{
38	27.3k	debug_decl(sudoers_ctx_free, SUDOERS_DEBUG_PLUGIN);
39
40		/* Free remaining references to password and group entries. */
41	27.3k	if (ctx->user.pw != NULL)
42	22.1k	sudo_pw_delref(ctx->user.pw);
43	27.3k	if (ctx->user.gid_list != NULL)
44	22.0k	sudo_gidlist_delref(ctx->user.gid_list);
45
46		/* Free dynamic contents of user_ctx. */
47	27.3k	free(ctx->user.cwd);
48	27.3k	free(ctx->user.name);
49	27.3k	if (ctx->user.ttypath != NULL)
50	503	free(ctx->user.ttypath);
51	26.8k	else
52	26.8k	free(ctx->user.tty);
53	27.3k	if (ctx->user.shost != ctx->user.host)
54	117	free(ctx->user.shost);
55	27.3k	free(ctx->user.host);
56	27.3k	free(ctx->user.cmnd);
57	27.3k	canon_path_free(ctx->user.cmnd_dir);
58	27.3k	free(ctx->user.cmnd_args);
59	27.3k	free(ctx->user.cmnd_list);
60	27.3k	free(ctx->user.cmnd_stat);
61
62		/* Free remaining references to password and group entries. */
63	27.3k	if (ctx->runas.pw != NULL)
64	21.6k	sudo_pw_delref(ctx->runas.pw);
65	27.3k	if (ctx->runas.gr != NULL)
66	573	sudo_gr_delref(ctx->runas.gr);
67	27.3k	if (ctx->runas.list_pw != NULL)
68	1.77k	sudo_pw_delref(ctx->runas.list_pw);
69
70		/* Free dynamic contents of ctx->runas. */
71	27.3k	free(ctx->runas.cmnd);
72	27.3k	free(ctx->runas.cmnd_saved);
73	27.3k	if (ctx->runas.shost != ctx->runas.host)
74	117	free(ctx->runas.shost);
75	27.3k	free(ctx->runas.host);
76	27.3k	free(ctx->runas.role);
77	27.3k	free(ctx->runas.type);
78	27.3k	free(ctx->runas.apparmor_profile);
79	27.3k	free(ctx->runas.privs);
80	27.3k	free(ctx->runas.limitprivs);
81
82		/* Free dynamic contents of ctx. */
83	27.3k	free(ctx->source);
84
85	27.3k	memset(ctx, 0, sizeof(*ctx));
86
87	27.3k	debug_return;
88	27.3k	}

Coverage Report

Created: 2025-07-23 06:42