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-rw-r--r--src/regress/intercept/test_ptrace.c235
-rw-r--r--src/regress/net_ifs/check_net_ifs.c87
-rw-r--r--src/regress/noexec/check_noexec.c232
-rw-r--r--src/regress/ttyname/check_ttyname.c122
4 files changed, 676 insertions, 0 deletions
diff --git a/src/regress/intercept/test_ptrace.c b/src/regress/intercept/test_ptrace.c
new file mode 100644
index 0000000..30b73e7
--- /dev/null
+++ b/src/regress/intercept/test_ptrace.c
@@ -0,0 +1,235 @@
+/*
+ * Copyright (c) 2022 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
+ */
+
+/*
+ * Test program to exercise seccomp(2) and ptrace(2) intercept code.
+ *
+ * Usage: test_ptrace [-d 1-3] [command]
+ */
+
+/* Ignore architecture restrictions and define this unilaterally. */
+#define HAVE_PTRACE_INTERCEPT
+#include "exec_ptrace.c"
+
+static sig_atomic_t got_sigchld;
+static int debug;
+int sudo_debug_instance = SUDO_DEBUG_INSTANCE_INITIALIZER;
+
+sudo_dso_public int main(int argc, char *argv[]);
+
+static void
+handler(int signo)
+{
+ if (signo == SIGCHLD)
+ got_sigchld = 1;
+}
+
+void
+intercept_closure_reset(struct intercept_closure *closure)
+{
+ memset(closure, 0, sizeof(*closure));
+}
+
+bool
+intercept_check_policy(const char *command, int argc, char **argv, int envc,
+ char **envp, const char *runcwd, int *oldcwd, void *v)
+{
+ struct intercept_closure *closure = v;
+ struct stat sb1, sb2;
+ bool is_denied;
+ debug_decl(intercept_check_policy, SUDO_DEBUG_EXEC);
+
+ /* Fake policy decisions. */
+ is_denied = stat(command, &sb1) == 0 && stat("/usr/bin/who", &sb2) == 0 &&
+ sb1.st_ino == sb2.st_ino && sb1.st_dev == sb2.st_dev;
+ if (is_denied) {
+ sudo_debug_printf(SUDO_DEBUG_DIAG, "denied %s", command);
+ closure->state = POLICY_REJECT;
+ } else {
+ sudo_debug_printf(SUDO_DEBUG_DIAG, "allowed %s", command);
+ closure->state = POLICY_TEST;
+ }
+ *oldcwd = -1;
+
+ debug_return_bool(true);
+}
+
+static void
+init_debug_files(struct sudo_conf_debug_file_list *file_list,
+ struct sudo_debug_file *file)
+{
+ debug_decl(init_debug_files, SUDO_DEBUG_EXEC);
+
+ TAILQ_INIT(file_list);
+ switch (debug) {
+ case 0:
+ debug_return;
+ case 1:
+ file->debug_flags = (char *)"exec@diag";
+ break;
+ case 2:
+ file->debug_flags = (char *)"exec@info";
+ break;
+ default:
+ file->debug_flags = (char *)"exec@debug";
+ break;
+ }
+ file->debug_file = (char *)"/dev/stderr";
+ TAILQ_INSERT_HEAD(file_list, file, entries);
+
+ debug_return;
+}
+
+int
+sudo_sigaction(int signo, struct sigaction *sa, struct sigaction *osa)
+{
+ return sigaction(signo, sa, osa);
+}
+
+int
+main(int argc, char *argv[])
+{
+ struct sudo_conf_debug_file_list debug_files;
+ struct sudo_debug_file debug_file;
+ const char *base, *shell = _PATH_SUDO_BSHELL;
+ struct intercept_closure closure = { 0 };
+ const char *errstr;
+ sigset_t blocked, empty;
+ struct sigaction sa;
+ pid_t child, my_pid, pid, my_pgrp;
+ int ch, status;
+ debug_decl_vars(main, SUDO_DEBUG_MAIN);
+
+ initprogname(argc > 0 ? argv[0] : "test_ptrace");
+
+ if (!have_seccomp_action("trap"))
+ sudo_fatalx("SECCOMP_MODE_FILTER not available in this kernel");
+
+ while ((ch = getopt(argc, argv, "d:")) != -1) {
+ switch (ch) {
+ case 'd':
+ debug = sudo_strtonum(optarg, 1, INT_MAX, &errstr);
+ if (errstr != NULL)
+ sudo_fatalx(U_("%s: %s"), optarg, U_(errstr));
+ break;
+ default:
+ fprintf(stderr, "usage: %s [-d 1-3] [command]\n", getprogname());
+ return EXIT_FAILURE;
+ }
+ }
+ argc -= optind;
+ argv += optind;
+
+ if (argc > 0)
+ shell = argv[0];
+ base = strrchr(shell, '/');
+ base = base ? base + 1 : shell;
+
+ /* Set debug level based on the debug flag. */
+ init_debug_files(&debug_files, &debug_file);
+ sudo_debug_instance = sudo_debug_register(getprogname(),
+ NULL, NULL, &debug_files, -1);
+ if (sudo_debug_instance == SUDO_DEBUG_INSTANCE_ERROR)
+ return EXIT_FAILURE;
+
+ /* Block SIGCHLD and SIGUSR during critical section. */
+ sigemptyset(&empty);
+ sigemptyset(&blocked);
+ sigaddset(&blocked, SIGCHLD);
+ sigaddset(&blocked, SIGUSR1);
+ sigprocmask(SIG_BLOCK, &blocked, NULL);
+
+ /* Signal handler sets a flag for SIGCHLD, nothing for SIGUSR1. */
+ memset(&sa, 0, sizeof(sa));
+ sigemptyset(&sa.sa_mask);
+ sa.sa_flags = SA_RESTART;
+ sa.sa_handler = handler;
+ sigaction(SIGCHLD, &sa, NULL);
+ sigaction(SIGUSR1, &sa, NULL);
+
+ /* Fork a shell. */
+ my_pid = getpid();
+ my_pgrp = getpgrp();
+ child = fork();
+ switch (child) {
+ case -1:
+ sudo_fatal("fork");
+ case 0:
+ /* child */
+ if (prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0) == -1)
+ sudo_fatal("%s", "unable to set no_new_privs bit");
+ if (!set_exec_filter())
+ _exit(EXIT_FAILURE);
+
+ /* Suspend child until tracer seizes control and sends SIGUSR1. */
+ sigsuspend(&empty);
+ execl(shell, base, NULL);
+ sudo_fatal("execl");
+ default:
+ /* Parent attaches to child and allows it to continue. */
+ if (exec_ptrace_seize(child) == -1)
+ return EXIT_FAILURE;
+ break;
+ }
+
+ /* Wait for SIGCHLD. */
+ for (;;) {
+ sigsuspend(&empty);
+ if (!got_sigchld)
+ continue;
+ got_sigchld = 0;
+
+ for (;;) {
+ do {
+ pid = waitpid(-1, &status, __WALL|WNOHANG);
+ } while (pid == -1 && errno == EINTR);
+ if (pid <= 0) {
+ if (pid == -1 && errno != ECHILD)
+ sudo_fatal("waitpid");
+ /* No child to wait for. */
+ break;
+ }
+
+ if (WIFEXITED(status)) {
+ sudo_debug_printf(SUDO_DEBUG_DIAG, "%d: exited %d",
+ (int)pid, WEXITSTATUS(status));
+ if (pid == child)
+ return WEXITSTATUS(status);
+ } else if (WIFSIGNALED(status)) {
+ sudo_debug_printf(SUDO_DEBUG_DIAG, "%d: killed by signal %d",
+ (int)pid, WTERMSIG(status));
+ if (pid == child)
+ return WTERMSIG(status) | 128;
+ } else if (WIFSTOPPED(status)) {
+ if (exec_ptrace_stopped(pid, status, &closure)) {
+ if (pid == child) {
+ sudo_suspend_parent(WSTOPSIG(status), my_pid,
+ my_pgrp, child, NULL, NULL);
+ if (kill(child, SIGCONT) != 0)
+ sudo_warn("kill(%d, SIGCONT)", (int)child);
+ }
+ }
+ } else {
+ sudo_fatalx("%d: unknown status 0x%x", (int)pid, status);
+ }
+ }
+ }
+}
diff --git a/src/regress/net_ifs/check_net_ifs.c b/src/regress/net_ifs/check_net_ifs.c
new file mode 100644
index 0000000..60adcfa
--- /dev/null
+++ b/src/regress/net_ifs/check_net_ifs.c
@@ -0,0 +1,87 @@
+/*
+ * SPDX-License-Identifier: ISC
+ *
+ * Copyright (c) 2021-2022 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.
+ */
+
+#include <config.h>
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <stdio.h>
+#include <stdlib.h>
+#ifdef HAVE_STDBOOL_H
+# include <stdbool.h>
+#else
+# include <compat/stdbool.h>
+#endif /* HAVE_STDBOOL_H */
+#include <string.h>
+#include <unistd.h>
+#include <limits.h>
+#include <errno.h>
+
+#include <sudo_compat.h>
+#include <sudo_util.h>
+
+sudo_dso_public int main(int argc, char *argv[]);
+
+extern int get_net_ifs(char **addrinfo);
+
+int
+main(int argc, char *argv[])
+{
+ int ch, ninterfaces, errors = 0, ntests = 1;
+ char *interfaces = NULL;
+ bool verbose = false;
+
+ initprogname(argc > 0 ? argv[0] : "check_net_ifs");
+
+ while ((ch = getopt(argc, argv, "v")) != -1) {
+ switch (ch) {
+ case 'v':
+ verbose = true;
+ break;
+ default:
+ fprintf(stderr, "usage: %s [-v]\n", getprogname());
+ return EXIT_FAILURE;
+ }
+ }
+
+ ninterfaces = get_net_ifs(&interfaces);
+ switch (ninterfaces) {
+ case -1:
+ printf("FAIL: unable to get network interfaces\n");
+ errors++;
+ break;
+ case 0:
+ /* no interfaces or STUB_LOAD_INTERFACES defined. */
+ if (verbose)
+ printf("OK: (0 interfaces)\n");
+ break;
+ default:
+ if (verbose) {
+ printf("OK: (%d interface%s, %s)\n", ninterfaces,
+ ninterfaces > 1 ? "s" : "", interfaces);
+ }
+ break;
+ }
+ free(interfaces);
+
+ if (ntests != 0) {
+ printf("%s: %d tests run, %d errors, %d%% success rate\n",
+ getprogname(), ntests, errors, (ntests - errors) * 100 / ntests);
+ }
+ return errors;
+}
diff --git a/src/regress/noexec/check_noexec.c b/src/regress/noexec/check_noexec.c
new file mode 100644
index 0000000..a5f7ff4
--- /dev/null
+++ b/src/regress/noexec/check_noexec.c
@@ -0,0 +1,232 @@
+/*
+ * SPDX-License-Identifier: ISC
+ *
+ * Copyright (c) 2016, 2022 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.
+ */
+
+#include <config.h>
+
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <stdio.h>
+#include <stdlib.h>
+#ifdef HAVE_STDBOOL_H
+# include <stdbool.h>
+#else
+# include <compat/stdbool.h>
+#endif /* HAVE_STDBOOL_H */
+#include <string.h>
+#ifdef HAVE_WORDEXP_H
+# include <wordexp.h>
+#endif
+#include <signal.h>
+#include <unistd.h>
+#include <limits.h>
+#include <errno.h>
+
+#include <sudo_compat.h>
+#include <sudo_fatal.h>
+#include <sudo_util.h>
+#include <sudo_queue.h>
+#include <sudo_exec.h>
+
+static bool verbose;
+
+sudo_dso_public int main(int argc, char *argv[], char *envp[]);
+
+static bool
+report_status(int status, const char *what)
+{
+ bool ret = false;
+
+ /* system() returns -1 for exec failure. */
+ if (status == -1) {
+ if (verbose)
+ printf("%s: OK (%s)\n", getprogname(), what);
+ return true;
+ }
+
+ /* check exit value, expecting 127 for failure */
+ if (WIFEXITED(status)) {
+ int exitval = WEXITSTATUS(status);
+ if (exitval == 127) {
+ if (verbose)
+ printf("%s: OK (%s)\n", getprogname(), what);
+ ret = true;
+ } else {
+ printf("%s: FAIL (%s) [%d]\n", getprogname(), what, exitval);
+ }
+ } else if (WIFSIGNALED(status)) {
+ printf("%s: FAIL (%s) [signal %d]\n", getprogname(), what,
+ WTERMSIG(status));
+ } else {
+ /* should not happen */
+ printf("%s: FAIL (%s) [status %d]\n", getprogname(), what, status);
+ }
+
+ return ret;
+}
+
+static int
+try_execl(void)
+{
+ pid_t child, pid;
+ int status;
+
+ child = fork();
+ switch (child) {
+ case -1:
+ sudo_fatal_nodebug("fork");
+ case 0:
+ /* child */
+ /* Try to exec /bin/true, else exit with value 127. */
+ execl("/bin/true", "true", (char *)0);
+ _exit(127);
+ default:
+ /* parent */
+ do {
+ pid = waitpid(child, &status, 0);
+ } while (pid == -1 && errno == EINTR);
+ if (pid == -1)
+ sudo_fatal_nodebug("waitpid");
+
+ if (report_status(status, "execl"))
+ return 0;
+ return 1;
+ }
+}
+
+static int
+try_system(void)
+{
+ int status;
+
+ /* Try to run /bin/true, system() returns 127 on exec failure. */
+ status = system("/bin/true > /dev/null 2>&1");
+
+ if (report_status(status, "system"))
+ return 0;
+ return 1;
+}
+
+#ifdef HAVE_WORDEXP_H
+static int
+try_wordexp(void)
+{
+ wordexp_t we;
+ int rc, ret = 1;
+
+ /*
+ * sudo_noexec.so prevents command substitution via the WRDE_NOCMD flag
+ * where possible.
+ */
+ rc = wordexp("$(/bin/echo foo)", &we, 0);
+ switch (rc) {
+ case -1:
+ /* sudo's wordexp() wrapper returns -1 if RTLD_NEXT is not supported. */
+ case 127:
+ /* Solaris 10 wordexp() returns 127 for execve() failure. */
+#ifdef WRDE_ERRNO
+ case WRDE_ERRNO:
+ /* Solaris 11 wordexp() returns WRDE_ERRNO for execve() failure. */
+#endif
+ if (verbose)
+ printf("%s: OK (wordexp) [%d]\n", getprogname(), rc);
+ ret = 0;
+ break;
+ case WRDE_SYNTAX:
+ /* FreeBSD returns WRDE_SYNTAX if it can't write to the shell process */
+ if (verbose)
+ printf("%s: OK (wordexp) [WRDE_SYNTAX]\n", getprogname());
+ ret = 0;
+ break;
+ case WRDE_CMDSUB:
+ if (verbose)
+ printf("%s: OK (wordexp) [WRDE_CMDSUB]\n", getprogname());
+ ret = 0;
+ break;
+ case 0:
+ /*
+ * On HP-UX 11.00 we don't seem to be able to add WRDE_NOCMD
+ * but the execve() wrapper prevents the command substitution.
+ */
+ if (we.we_wordc == 0) {
+ if (verbose)
+ printf("%s: OK (wordexp) [%d]\n", getprogname(), rc);
+ wordfree(&we);
+ ret = 0;
+ break;
+ }
+ wordfree(&we);
+ FALLTHROUGH;
+ default:
+ printf("%s: FAIL (wordexp) [%d]\n", getprogname(), rc);
+ break;
+ }
+ return ret;
+}
+#endif
+
+sudo_noreturn static void
+usage(void)
+{
+ fprintf(stderr, "usage: %s [-v] rexec | /path/to/sudo_noexec.so\n",
+ getprogname());
+ exit(EXIT_FAILURE);
+}
+
+int
+main(int argc, char *argv[], char *envp[])
+{
+ int ch, errors = 0, ntests = 0;
+
+ initprogname(argc > 0 ? argv[0] : "check_noexec");
+
+ while ((ch = getopt(argc, argv, "v")) != -1) {
+ switch (ch) {
+ case 'v':
+ verbose = true;
+ break;
+ default:
+ usage();
+ }
+ }
+
+ if (argc - optind != 1)
+ usage();
+
+ /* Disable execution for post-exec and re-exec ourself. */
+ if (strcmp(argv[optind], "rexec") != 0) {
+ const char *noexec = argv[optind];
+ argv[optind] = (char *)"rexec";
+ execve(argv[0], argv, disable_execute(envp, noexec));
+ sudo_fatalx_nodebug("execve");
+ }
+
+ ntests++;
+ errors += try_execl();
+ ntests++;
+ errors += try_system();
+#ifdef HAVE_WORDEXP_H
+ ntests++;
+ errors += try_wordexp();
+#endif
+
+ if (ntests != 0) {
+ printf("%s: %d tests run, %d errors, %d%% success rate\n",
+ getprogname(), ntests, errors, (ntests - errors) * 100 / ntests);
+ }
+ return errors;
+}
diff --git a/src/regress/ttyname/check_ttyname.c b/src/regress/ttyname/check_ttyname.c
new file mode 100644
index 0000000..715423d
--- /dev/null
+++ b/src/regress/ttyname/check_ttyname.c
@@ -0,0 +1,122 @@
+/*
+ * SPDX-License-Identifier: ISC
+ *
+ * Copyright (c) 2013-2020, 2022 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.
+ */
+
+#include <config.h>
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <stdio.h>
+#ifdef HAVE_STDBOOL_H
+# include <stdbool.h>
+#else
+# include <compat/stdbool.h>
+#endif /* HAVE_STDBOOL_H */
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <limits.h>
+#include <errno.h>
+
+#include <sudo_compat.h>
+#include <sudo_fatal.h>
+#include <sudo_util.h>
+#include <sudo_debug.h>
+
+sudo_dso_public int main(int argc, char *argv[]);
+
+int sudo_debug_instance = SUDO_DEBUG_INSTANCE_INITIALIZER;
+extern char *get_process_ttyname(char *name, size_t namelen);
+
+static int
+match_ttys(const char *tty1, const char *tty2)
+{
+ struct stat sb1, sb2;
+
+ if (tty1 != NULL && tty2 != NULL) {
+ if (strcmp(tty1, tty2) == 0)
+ return 0;
+ /* Could be the same device with a different name. */
+ if (stat(tty1, &sb1) == 0 && S_ISCHR(sb1.st_mode) &&
+ stat(tty2, &sb2) == 0 && S_ISCHR(sb2.st_mode)) {
+ if (sb1.st_rdev == sb2.st_rdev)
+ return 0;
+ }
+ } else if (tty1 == NULL && tty2 == NULL) {
+ return 0;
+ }
+
+ return 1;
+}
+
+int
+main(int argc, char *argv[])
+{
+ char *tty_libc = NULL, *tty_sudo = NULL;
+ char pathbuf[PATH_MAX];
+ bool verbose = false;
+ int ch, errors = 0, ntests = 1;
+
+ initprogname(argc > 0 ? argv[0] : "check_ttyname");
+
+ while ((ch = getopt(argc, argv, "v")) != -1) {
+ switch (ch) {
+ case 'v':
+ verbose = true;
+ break;
+ default:
+ fprintf(stderr, "usage: %s [-v]\n", getprogname());
+ return EXIT_FAILURE;
+ }
+ }
+
+ /* Lookup tty name using kernel info if possible. */
+ if (get_process_ttyname(pathbuf, sizeof(pathbuf)) != NULL)
+ tty_sudo = pathbuf;
+
+#if defined(HAVE_KINFO_PROC2_NETBSD) || \
+ defined(HAVE_KINFO_PROC_OPENBSD) || \
+ defined(HAVE_KINFO_PROC_FREEBSD) || \
+ defined(HAVE_KINFO_PROC_DFLY) || \
+ defined(HAVE_KINFO_PROC_44BSD) || \
+ defined(HAVE__TTYNAME_DEV) || defined(HAVE_STRUCT_PSINFO_PR_TTYDEV) || \
+ defined(HAVE_PSTAT_GETPROC) || defined(__linux__)
+
+ /* Lookup tty name attached to stdin via libc. */
+ tty_libc = ttyname(STDIN_FILENO);
+#endif
+
+ /* Compare libc and kernel ttys. */
+ if (match_ttys(tty_libc, tty_sudo) == 0) {
+ if (verbose)
+ printf("%s: OK (%s)\n", getprogname(), tty_sudo ? tty_sudo : "none");
+ } else if (tty_libc == NULL) {
+ if (verbose)
+ printf("%s: SKIP (%s)\n", getprogname(), tty_sudo ? tty_sudo : "none");
+ ntests = 0;
+ } else {
+ printf("%s: FAIL %s (sudo) vs. %s (libc)\n", getprogname(),
+ tty_sudo ? tty_sudo : "none", tty_libc ? tty_libc : "none");
+ errors++;
+ }
+
+ if (ntests != 0) {
+ printf("%s: %d tests run, %d errors, %d%% success rate\n",
+ getprogname(), ntests, errors, (ntests - errors) * 100 / ntests);
+ }
+ return errors;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-18 11:45:48 +0000