From de945f43a520b99f1a8ca454b399a2d3e22d3910 Mon Sep 17 00:00:00 2001 From: Rich Felker Date: Thu, 22 Aug 2019 20:58:00 -0400 Subject: [PATCH] add utime (utimensat, futimens) functional tests these tests check for the ability to set file timestamps using UTIME_NOW, UTIME_OMIT, and explicit timespecs. they indirectly check that fstat works as well, and include a check of the first Y2038 timestamp that overflows 32-bit time_t, reporting errors for a Y2038 EOL implementaton (if time_t is 32-bit) or a kernel, filesystem, or library implementation that fails to set and read back timestamps past the 32-bit limit despite having a time_t type that can represent such a timestamp. --- src/functional/utime.c | 73 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 73 insertions(+) create mode 100644 src/functional/utime.c diff --git a/src/functional/utime.c b/src/functional/utime.c new file mode 100644 index 0000000..7fa7a1f --- /dev/null +++ b/src/functional/utime.c @@ -0,0 +1,73 @@ +#include +#include +#include +#include +#include +#include +#include +#include +#include "test.h" + +#define TEST(c, ...) ((c) ? 1 : (t_error(#c" failed: " __VA_ARGS__),0)) +#define TESTVAL(v,op,x) TEST(v op x, "%jd\n", (intmax_t)(v)) + +int main(void) +{ + struct stat st; + FILE *f; + int fd; + time_t t; + + TEST(utimensat(AT_FDCWD, "/dev/null/invalid", ((struct timespec[2]){{.tv_nsec=UTIME_OMIT},{.tv_nsec=UTIME_OMIT}}), 0)==0 || errno==ENOTDIR, + "%s\n", strerror(errno)); + TEST(futimens(-1, ((struct timespec[2]){{.tv_nsec=UTIME_OMIT},{.tv_nsec=UTIME_OMIT}}))==0 || errno==EBADF, + "%s\n", strerror(errno)); + + if (!TEST(f = tmpfile())) return t_status; + fd = fileno(f); + + TEST(futimens(fd, (struct timespec[2]){0}) == 0, "\n"); + TEST(fstat(fd, &st) == 0, "\n"); + TESTVAL(st.st_atim.tv_sec,==,0); + TESTVAL(st.st_atim.tv_nsec,==,0); + TESTVAL(st.st_mtim.tv_sec,==,0); + TESTVAL(st.st_mtim.tv_nsec,==,0); + + TEST(futimens(fd, ((struct timespec[2]){{.tv_sec=1,.tv_nsec=UTIME_OMIT},{.tv_sec=1,.tv_nsec=UTIME_OMIT}})) == 0, "\n"); + TEST(fstat(fd, &st) == 0, "\n"); + TESTVAL(st.st_atim.tv_sec,==,0); + TESTVAL(st.st_atim.tv_nsec,==,0); + TESTVAL(st.st_mtim.tv_sec,==,0); + TESTVAL(st.st_mtim.tv_nsec,==,0); + + t = time(0); + + TEST(futimens(fd, ((struct timespec[2]){{.tv_nsec=UTIME_NOW},{.tv_nsec=UTIME_OMIT}})) == 0, "\n"); + TEST(fstat(fd, &st) == 0, "\n"); + TESTVAL(st.st_atim.tv_sec,>=,t); + TESTVAL(st.st_mtim.tv_sec,==,0); + TESTVAL(st.st_mtim.tv_nsec,==,0); + + TEST(futimens(fd, (struct timespec[2]){0}) == 0, "\n"); + TEST(futimens(fd, ((struct timespec[2]){{.tv_nsec=UTIME_OMIT},{.tv_nsec=UTIME_NOW}})) == 0, "\n"); + TEST(fstat(fd, &st) == 0, "\n"); + TESTVAL(st.st_atim.tv_sec,==,0); + TESTVAL(st.st_mtim.tv_sec,>=,t); + + TEST(futimens(fd, ((struct timespec[2]){{.tv_nsec=UTIME_NOW},{.tv_nsec=UTIME_OMIT}})) == 0, "\n"); + TEST(fstat(fd, &st) == 0, "\n"); + TESTVAL(st.st_atim.tv_sec,>=,t); + TESTVAL(st.st_mtim.tv_sec,>=,t); + + if (TEST((time_t)(1LL<<32) == (1LL<<32), "implementation has Y2038 EOL\n")) { + if (TEST(futimens(fd, ((struct timespec[2]){{.tv_sec=1LL<<32},{.tv_sec=1LL<<32}})) == 0, "%s\n", strerror(errno))) { + TEST(fstat(fd, &st) == 0, "\n"); + TESTVAL(st.st_atim.tv_sec, ==, 1LL<<32); + TESTVAL(st.st_mtim.tv_sec, ==, 1LL<<32); + } + } + + fclose(f); + + return t_status; +} -- 2.20.1