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authorDarren Tucker <dtucker@dtucker.net>2019-01-18 12:11:42 +1300
committerDarren Tucker <dtucker@dtucker.net>2019-01-18 10:16:11 +1100
commit091093d25802b87d3b2b09f2c88d9f33e1ae5562 (patch)
tree16a433e3317c60c7a245b70818726d0a85203b19 /openbsd-compat/regress
parent609644027dde1f82213699cb6599e584c7efcb75 (diff)
Add a minimal implementation of utimensat().
Some systems (eg older OS X) do not have utimensat, so provide minimal implementation in compat layer. Fixes build on at least El Capitan.
Diffstat (limited to 'openbsd-compat/regress')
-rw-r--r--openbsd-compat/regress/Makefile.in2
-rw-r--r--openbsd-compat/regress/utimensattest.c97
2 files changed, 98 insertions, 1 deletions
diff --git a/openbsd-compat/regress/Makefile.in b/openbsd-compat/regress/Makefile.in
index 529331be..c5aae61e 100644
--- a/openbsd-compat/regress/Makefile.in
+++ b/openbsd-compat/regress/Makefile.in
@@ -14,7 +14,7 @@ LIBS=@LIBS@
LDFLAGS=@LDFLAGS@ $(LIBCOMPAT)
TESTPROGS=closefromtest$(EXEEXT) snprintftest$(EXEEXT) strduptest$(EXEEXT) \
- strtonumtest$(EXEEXT) opensslvertest$(EXEEXT)
+ strtonumtest$(EXEEXT) opensslvertest$(EXEEXT) utimensattest$(EXEEXT)
all: t-exec ${OTHERTESTS}
diff --git a/openbsd-compat/regress/utimensattest.c b/openbsd-compat/regress/utimensattest.c
new file mode 100644
index 00000000..a7bc7634
--- /dev/null
+++ b/openbsd-compat/regress/utimensattest.c
@@ -0,0 +1,97 @@
+/*
+ * Copyright (c) 2019 Darren Tucker
+ *
+ * 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 <sys/types.h>
+#include <sys/stat.h>
+
+#include <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#define TMPFILE "utimensat.tmp"
+#define TMPFILE2 "utimensat.tmp2"
+
+#ifndef AT_SYMLINK_NOFOLLOW
+# define AT_SYMLINK_NOFOLLOW 0x80000000
+#endif
+
+int utimensat(int, const char *, const struct timespec[2], int);
+
+void
+fail(char *msg, long expect, long got)
+{
+ int saved_errno = errno;
+
+ if (expect == got && got == 0)
+ fprintf(stderr, "utimensat: %s: %s\n", msg,
+ strerror(saved_errno));
+ else
+ fprintf(stderr, "utimensat: %s: expected %ld got %ld\n",
+ msg, expect, got);
+ exit(1);
+}
+
+int
+main(void)
+{
+ int fd;
+ struct stat sb;
+ struct timespec ts[2];
+
+ if ((fd = open(TMPFILE, O_CREAT, 0600)) == -1)
+ fail("open", 0, 0);
+ close(fd);
+
+ ts[0].tv_sec = 12345678;
+ ts[0].tv_nsec = 23456789;
+ ts[1].tv_sec = 34567890;
+ ts[1].tv_nsec = 45678901;
+ if (utimensat(AT_FDCWD, TMPFILE, ts, AT_SYMLINK_NOFOLLOW) == -1)
+ fail("utimensat", 0, 0);
+
+ if (stat(TMPFILE, &sb) == -1)
+ fail("stat", 0, 0 );
+ if (sb.st_atime != 12345678)
+ fail("st_atime", 0, 0 );
+ if (sb.st_mtime != 34567890)
+ fail("st_mtime", 0, 0 );
+#if 0
+ /*
+ * Results expected to be rounded to the nearest microsecond.
+ * Depends on timestamp precision in kernel and filesystem so
+ * disabled by default.
+ */
+ if (sb.st_atim.tv_nsec != 23456000)
+ fail("atim.tv_nsec", 23456000, sb.st_atim.tv_nsec);
+ if (sb.st_mtim.tv_nsec != 45678000)
+ fail("mtim.tv_nsec", 45678000, sb.st_mtim.tv_nsec);
+#endif
+
+ if (rename(TMPFILE, TMPFILE2) == -1)
+ fail("rename", 0, 0);
+ if (symlink(TMPFILE2, TMPFILE) == -1)
+ fail("symlink", 0, 0);
+
+ if (utimensat(AT_FDCWD, TMPFILE, ts, AT_SYMLINK_NOFOLLOW) != -1)
+ fail("utimensat followed symlink", 0, 0);
+
+ if (!(unlink(TMPFILE) == 0 && unlink(TMPFILE2) == 0))
+ fail("unlink", 0, 0);
+ exit(0);
+}