/
githubmirror
/
strace
Обзор
Документация
Войти
/
githubmirror
/
strace
Код
Запросы
0
Пакеты
0
Релизы
0
Аналитика
Безопасность
master
tests/setugid.c
73 строки
1 KB
Dmitry V. Levin
Use loop initial declarations
05 ноя 2021, 11:00
05 ноя 2021, 11:00
462fa29
Код
Авторство
О чём код?
/* * Check decoding of setuid/setgid/setuid32/setgid32 syscalls. * * Copyright (c) 2016 Dmitry V. Levin <ldv@strace.io> * Copyright (c) 2016-2021 The strace developers. * All rights reserved. * * SPDX-License-Identifier: GPL-2.0-or-later */ #include <errno.h> #include <stdio.h> #include <unistd.h> static void printuid(unsigned UGID_TYPE id) { if (id == (unsigned UGID_TYPE) -1U) printf("-1"); else printf("%u", id); } int main(void) { unsigned int ugid = GETUGID; CHECK_OVERFLOWUGID(ugid); const long tests[] = { ugid, 0xffff0000U | ugid, (unsigned long) 0xffffffff00000000ULL | ugid, 0xffffU, -1U, -1L }; for (unsigned int i = 0; i < ARRAY_SIZE(tests); ++i) { const unsigned int num = (unsigned UGID_TYPE) tests[i]; long expected; errno = 0; if (num == ugid) expected = 0; else if ((UGID_TYPE) num == (UGID_TYPE) -1U) expected = -1; else continue; const long rc = syscall(SYSCALL_NR, tests[i]); const char *errstr = sprintrc(rc); if (rc != expected) { if (!i && ENOSYS == errno) { printf("%s(%u) = %s\n", SYSCALL_NAME, ugid, errstr); break; } perror_msg_and_fail("%s(%#lx) = %ld != %ld", SYSCALL_NAME, tests[i], rc, expected); } printf("%s(", SYSCALL_NAME); printuid(num); printf(") = %s\n", errstr); } puts("+++ exited with 0 +++"); return 0; }