63 lines
1.1 KiB
C
63 lines
1.1 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* This test covers the PR_SET_NAME functionality of prctl calls
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*/
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#include <errno.h>
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#include <sys/prctl.h>
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#include <string.h>
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#include "../kselftest_harness.h"
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#define CHANGE_NAME "changename"
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#define EMPTY_NAME ""
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#define TASK_COMM_LEN 16
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int set_name(char *name)
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{
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int res;
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res = prctl(PR_SET_NAME, name, NULL, NULL, NULL);
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if (res < 0)
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return -errno;
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return res;
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}
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int check_is_name_correct(char *check_name)
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{
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char name[TASK_COMM_LEN];
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int res;
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res = prctl(PR_GET_NAME, name, NULL, NULL, NULL);
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if (res < 0)
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return -errno;
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return !strcmp(name, check_name);
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}
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int check_null_pointer(char *check_name)
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{
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char *name = NULL;
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int res;
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res = prctl(PR_GET_NAME, name, NULL, NULL, NULL);
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return res;
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}
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TEST(rename_process) {
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EXPECT_GE(set_name(CHANGE_NAME), 0);
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EXPECT_TRUE(check_is_name_correct(CHANGE_NAME));
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EXPECT_GE(set_name(EMPTY_NAME), 0);
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EXPECT_TRUE(check_is_name_correct(EMPTY_NAME));
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EXPECT_GE(set_name(CHANGE_NAME), 0);
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EXPECT_LT(check_null_pointer(CHANGE_NAME), 0);
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}
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TEST_HARNESS_MAIN
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