From: Dmitry V. Levin <ldv@altlinux.org>
Date: Sun, 16 Apr 2017 18:47:29 +0000 (+0000)
Subject: tests: do more rigorous testing of futimesat syscall parser
X-Git-Tag: v4.17~85
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=01fff8d56bca3ab64ad71ac2b2153ecda2cf2aec;p=strace

tests: do more rigorous testing of futimesat syscall parser

* tests/futimesat.c (errstr): New variable.
(print_ts, k_futimesat): New functions.
(main): Use them to do more rigorous testing of futimesat syscall parser.
---

diff --git a/tests/futimesat.c b/tests/futimesat.c
index 37425efd..ae83988e 100644
--- a/tests/futimesat.c
+++ b/tests/futimesat.c
@@ -37,40 +37,108 @@
 # include <sys/time.h>
 # include <unistd.h>
 
+static void
+print_tv(const struct timeval *tv)
+{
+	printf("{tv_sec=%ju, tv_usec=%ju}",
+	       (uintmax_t) tv->tv_sec, (uintmax_t) tv->tv_usec);
+}
+
+static const char *errstr;
+
+static long
+k_futimesat(const kernel_ulong_t dirfd,
+	    const kernel_ulong_t pathname,
+	    const kernel_ulong_t times)
+{
+	long rc = syscall(__NR_futimesat, dirfd, pathname, times);
+	errstr = sprintrc(rc);
+	return rc;
+}
 
 int
 main(void)
 {
-	static const char sample[] = "futimesat_sample";
-	unsigned long dirfd = (unsigned long) 0xdeadbeef00000000ULL | -100U;
+	static const kernel_ulong_t bogus_fd =
+		(kernel_ulong_t) 0xbadfaceddeadbeaf;
+	static const kernel_ulong_t kfdcwd =
+		(kernel_ulong_t) 0xdefaced00000000 | -100U;
+	static const char proto_fname[] = "futimesat_sample";
+	static const char qname[] = "\"futimesat_sample\"";
 
-	long rc = syscall(__NR_futimesat, dirfd, sample, 0);
-	printf("futimesat(AT_FDCWD, \"%s\", NULL) = %s\n",
-	       sample, sprintrc(rc));
+	char *const fname = tail_memdup(proto_fname, sizeof(proto_fname));
+	const kernel_ulong_t kfname = (uintptr_t) fname;
+	struct timeval *const tv = tail_alloc(sizeof(*tv) * 2);
 
-	struct timeval *const ts = tail_alloc(sizeof(*ts) * 2);
-	dirfd = (unsigned long) 0xdeadbeefffffffffULL;
+	(void) close(0);
 
-	ts[0].tv_sec = 1492356708;
-	ts[0].tv_usec = 567891234;
-	ts[1].tv_sec = 1492357086;
-	ts[1].tv_usec = 678902345;
+	/* dirfd */
+	k_futimesat(0, kfname, 0);
+	printf("futimesat(0, %s, NULL) = %s\n", qname, errstr);
 
-	rc = syscall(__NR_futimesat, dirfd, 0, ts + 2);
-	printf("futimesat(%d, NULL, %p) = %s\n",
-	       (int) dirfd, ts + 2, sprintrc(rc));
+	k_futimesat(bogus_fd, kfname, 0);
+	printf("futimesat(%d, %s, NULL) = %s\n", (int) bogus_fd, qname, errstr);
 
-	rc = syscall(__NR_futimesat, dirfd, 0, ts + 1);
-	printf("futimesat(%d, NULL, %p) = %s\n",
-	       (int) dirfd, ts + 1, sprintrc(rc));
+	k_futimesat(-100U, kfname, 0);
+	printf("futimesat(AT_FDCWD, %s, NULL) = %s\n", qname, errstr);
 
-	(void) close(0);
-	rc = syscall(__NR_futimesat, 0, "", ts);
-	printf("futimesat(0, \"\", [{tv_sec=%jd, tv_usec=%jd}, "
-	       "{tv_sec=%jd, tv_usec=%jd}]) = %s\n",
-	       (intmax_t) ts[0].tv_sec, (intmax_t) ts[0].tv_usec,
-	       (intmax_t) ts[1].tv_sec, (intmax_t) ts[1].tv_usec,
-	       sprintrc(rc));
+	k_futimesat(kfdcwd, kfname, 0);
+	printf("futimesat(AT_FDCWD, %s, NULL) = %s\n", qname, errstr);
+
+	/* pathname */
+	k_futimesat(kfdcwd, 0, 0);
+	printf("futimesat(AT_FDCWD, NULL, NULL) = %s\n", errstr);
+
+	k_futimesat(kfdcwd, kfname + sizeof(proto_fname) - 1, 0);
+	printf("futimesat(AT_FDCWD, \"\", NULL) = %s\n", errstr);
+
+	fname[sizeof(proto_fname) - 1] = '+';
+	k_futimesat(kfdcwd, kfname, 0);
+	fname[sizeof(proto_fname) - 1] = '\0';
+	printf("futimesat(AT_FDCWD, %p, NULL) = %s\n", fname, errstr);
+
+	if (F8ILL_KULONG_SUPPORTED) {
+		k_futimesat(kfdcwd, f8ill_ptr_to_kulong(fname), 0);
+		printf("futimesat(AT_FDCWD, %#jx, NULL) = %s\n",
+		       (uintmax_t) f8ill_ptr_to_kulong(fname), errstr);
+	}
+
+	/* times */
+	k_futimesat(kfdcwd, kfname, (uintptr_t) (tv + 1));
+	printf("futimesat(AT_FDCWD, %s, %p) = %s\n",
+	       qname, tv + 1, errstr);
+
+	k_futimesat(kfdcwd, kfname, (uintptr_t) (tv + 2));
+	printf("futimesat(AT_FDCWD, %s, %p) = %s\n",
+	       qname, tv + 2, errstr);
+
+	tv[0].tv_sec = 1492356708;
+	tv[0].tv_usec = 567891234;
+	tv[1].tv_sec = 1492357086;
+	tv[1].tv_usec = 678902345;
+
+	k_futimesat(kfdcwd, kfname, (uintptr_t) tv);
+	printf("futimesat(AT_FDCWD, %s, [", qname);
+	print_tv(&tv[0]);
+	printf(", ");
+	print_tv(&tv[1]);
+	printf("]) = %s\n", errstr);
+
+	tv[0].tv_usec = 567891;
+	tv[1].tv_usec = 678902;
+
+	k_futimesat(kfdcwd, kfname, (uintptr_t) tv);
+	printf("futimesat(AT_FDCWD, %s, [", qname);
+	print_tv(&tv[0]);
+	printf(", ");
+	print_tv(&tv[1]);
+	printf("]) = %s\n", errstr);
+
+	if (F8ILL_KULONG_SUPPORTED) {
+		k_futimesat(kfdcwd, kfname, f8ill_ptr_to_kulong(tv));
+		printf("futimesat(AT_FDCWD, %s, %#jx) = %s\n",
+		       qname, (uintmax_t) f8ill_ptr_to_kulong(tv), errstr);
+	}
 
 	puts("+++ exited with 0 +++");
 	return 0;