d9708437b2
Signed-off-by: Jan Holesovsky <kendy@collabora.com> Change-Id: I32c4667380301853b1a89b35fc0480849f75b14c
69 lines
1.7 KiB
C
69 lines
1.7 KiB
C
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
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/*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*/
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/*
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* Place for simple security-related code.
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*/
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#pragma once
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#include <sys/capability.h>
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#include <sys/types.h>
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#include <pwd.h>
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#include <unistd.h>
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#include <string.h>
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#include <stdio.h>
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#define LOOL_USER_ID "lool"
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#ifndef KIT_IN_PROCESS
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static int hasCorrectUID(const char *appName)
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{
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#if ENABLE_DEBUG
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(void)appName;
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return 1; // insecure but easy to use.
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#else
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struct passwd *pw = getpwuid(getuid());
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if (pw && pw->pw_name && !strcmp(pw->pw_name, LOOL_USER_ID))
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return 1;
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else {
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fprintf(stderr, "Error: %s incorrect user-name: %s - aborting\n",
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appName, pw && pw->pw_name ? pw->pw_name : "<null>");
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return 0;
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}
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#endif
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}
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/** Return 0 if no capability is set on the current binary. Positive number gives the bitfield of caps that are set, negative an error. */
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int hasAnyCapability()
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{
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cap_t caps = cap_get_proc();
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if (caps == nullptr)
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{
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fprintf(stderr, "Error: cap_get_proc() failed.\n");
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return -1;
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}
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cap_t caps_none = cap_init();
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if (caps == nullptr)
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{
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fprintf(stderr, "Error: cap_init() failed.\n");
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cap_free(caps);
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return -1;
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}
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// 0 = caps of this process equal to no caps
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int result = cap_compare(caps, caps_none);
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cap_free(caps_none);
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cap_free(caps);
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return result;
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}
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#endif
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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