diff options
Diffstat (limited to 'plugins/sudoers/regress/starttime/check_starttime.c')
| -rw-r--r-- | plugins/sudoers/regress/starttime/check_starttime.c | 154 |
1 files changed, 154 insertions, 0 deletions
diff --git a/plugins/sudoers/regress/starttime/check_starttime.c b/plugins/sudoers/regress/starttime/check_starttime.c new file mode 100644 index 0000000..406d7fb --- /dev/null +++ b/plugins/sudoers/regress/starttime/check_starttime.c @@ -0,0 +1,154 @@ +/* + * SPDX-License-Identifier: ISC + * + * Copyright (c) 2017 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 <limits.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <time.h> +#include <unistd.h> + +#include <sudo_compat.h> +#include <sudo_util.h> +#include <sudo_fatal.h> +#include <timestamp.h> + +sudo_dso_public int main(int argc, char *argv[]); + +#if defined(sudo_kinfo_proc) || defined(__linux__) || defined(HAVE_STRUCT_PSINFO_PR_TTYDEV) || defined(HAVE_PSTAT_GETPROC) || defined(__gnu_hurd__) + +#ifdef __linux__ +static int +get_now(struct timespec *now) +{ + const char *errstr; + char buf[1024]; + time_t seconds; + int ret = -1; + FILE *fp; + + /* Linux process start time is relative to boot time. */ + fp = fopen("/proc/stat", "r"); + if (fp != NULL) { + while (fgets(buf, sizeof(buf), fp) != NULL) { + if (strncmp(buf, "btime ", 6) != 0) + continue; + buf[strcspn(buf, "\n")] = '\0'; + + /* Boot time is in seconds since the epoch. */ + seconds = sudo_strtonum(buf + 6, 0, TIME_T_MAX, &errstr); + if (errstr != NULL) + return -1; + + /* Instead of the real time, "now" is relative to boot time. */ + if (sudo_gettime_real(now) == -1) + return -1; + now->tv_sec -= seconds; + ret = 0; + break; + } + fclose(fp); + } + return ret; +} +#else +static int +get_now(struct timespec *now) +{ + /* Process start time is relative to wall clock time. */ + return sudo_gettime_real(now); +} +#endif + +int +main(int argc, char *argv[]) +{ + int ch, ntests = 0, errors = 0; + struct timespec now, then, delta; + time_t timeoff = 0; + pid_t pids[2]; + char *faketime; + unsigned int i; + + initprogname(argc > 0 ? argv[0] : "check_starttime"); + + while ((ch = getopt(argc, argv, "v")) != -1) { + switch (ch) { + case 'v': + /* ignored */ + break; + default: + fprintf(stderr, "usage: %s [-v]\n", getprogname()); + return EXIT_FAILURE; + } + } + argc -= optind; + argv += optind; + + if (get_now(&now) == -1) + sudo_fatal_nodebug("unable to get current time"); + + pids[0] = getpid(); + pids[1] = getppid(); + + /* Debian CI pipeline runs tests using faketime. */ + faketime = getenv("FAKETIME"); + if (faketime != NULL) + timeoff = sudo_strtonum(faketime, TIME_T_MIN, TIME_T_MAX, NULL); + + for (i = 0; i < 2; i++) { + ntests++; + if (get_starttime(pids[i], &then) == -1) { + printf("%s: test %d: unable to get start time for pid %d\n", + getprogname(), ntests, (int)pids[i]); + errors++; + } + if (i != 0) + continue; + + /* Verify our own process start time, allowing for some drift. */ + ntests++; + sudo_timespecsub(&then, &now, &delta); + delta.tv_sec += timeoff; + if (delta.tv_sec > 30 || delta.tv_sec < -30) { + printf("%s: test %d: unexpected start time for pid %d: %s", + getprogname(), ntests, (int)pids[i], ctime(&then.tv_sec)); + errors++; + } + } + + if (ntests != 0) { + printf("%s: %d tests run, %d errors, %d%% success rate\n", + getprogname(), ntests, errors, (ntests - errors) * 100 / ntests); + } + + return errors; +} + +#else + +int +main(int argc, char *argv[]) +{ + /* get_starttime not supported */ + return 0; +} + +#endif |