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selftests/nolibc: condition some tests on /proc existence 

If /proc is not available (program run inside a chroot or without
sufficient permissions), it's better to disable the associated tests.
Some will be preserved like the ones which check for a failure to
create some entries there since they're still supposed to fail.

Signed-off-by: Willy Tarreau <w@1wt.eu>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
This commit is contained in:
Willy Tarreau 2022-07-19 23:44:43 +02:00 committed by Paul E. McKenney
parent 1a5454f625
commit 7172f1c685
1 changed files with 9 additions and 5 deletions
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14
tools/testing/selftests/nolibc/nolibc-test.c
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@ -413,11 +413,15 @@ int test_getdents64(const char *dir)
int run_syscall(int min, int max)
{
struct stat stat_buf;
int proc;
int test;
int tmp;
int ret = 0;
void *p1, *p2;
/* <proc> indicates whether or not /proc is mounted */
proc = stat("/proc", &stat_buf) == 0;
for (test = min; test >= 0 && test <= max; test++) {
int llen = 0; // line length
@ -438,12 +442,12 @@ int run_syscall(int min, int max)
CASE_TEST(chdir_root); EXPECT_SYSZR(1, chdir("/")); break;
CASE_TEST(chdir_dot); EXPECT_SYSZR(1, chdir(".")); break;
CASE_TEST(chdir_blah); EXPECT_SYSER(1, chdir("/blah"), -1, ENOENT); break;
CASE_TEST(chmod_net); EXPECT_SYSZR(1, chmod("/proc/self/net", 0555)); break;
CASE_TEST(chmod_self); EXPECT_SYSER(1, chmod("/proc/self", 0555), -1, EPERM); break;
CASE_TEST(chown_self); EXPECT_SYSER(1, chown("/proc/self", 0, 0), -1, EPERM); break;
CASE_TEST(chmod_net); EXPECT_SYSZR(proc, chmod("/proc/self/net", 0555)); break;
CASE_TEST(chmod_self); EXPECT_SYSER(proc, chmod("/proc/self", 0555), -1, EPERM); break;
CASE_TEST(chown_self); EXPECT_SYSER(proc, chown("/proc/self", 0, 0), -1, EPERM); break;
CASE_TEST(chroot_root); EXPECT_SYSZR(1, chroot("/")); break;
CASE_TEST(chroot_blah); EXPECT_SYSER(1, chroot("/proc/self/blah"), -1, ENOENT); break;
CASE_TEST(chroot_exe); EXPECT_SYSER(1, chroot("/proc/self/exe"), -1, ENOTDIR); break;
CASE_TEST(chroot_exe); EXPECT_SYSER(proc, chroot("/proc/self/exe"), -1, ENOTDIR); break;
CASE_TEST(close_m1); EXPECT_SYSER(1, close(-1), -1, EBADF); break;
CASE_TEST(close_dup); EXPECT_SYSZR(1, close(dup(0))); break;
CASE_TEST(dup_0); tmp = dup(0); EXPECT_SYSNE(1, tmp, -1); close(tmp); break;
@ -464,7 +468,7 @@ int run_syscall(int min, int max)
CASE_TEST(link_root1); EXPECT_SYSER(1, link("/", "/"), -1, EEXIST); break;
CASE_TEST(link_blah); EXPECT_SYSER(1, link("/proc/self/blah", "/blah"), -1, ENOENT); break;
CASE_TEST(link_dir); EXPECT_SYSER(1, link("/", "/blah"), -1, EPERM); break;
CASE_TEST(link_cross); EXPECT_SYSER(1, link("/proc/self/net", "/blah"), -1, EXDEV); break;
CASE_TEST(link_cross); EXPECT_SYSER(proc, link("/proc/self/net", "/blah"), -1, EXDEV); break;
CASE_TEST(lseek_m1); EXPECT_SYSER(1, lseek(-1, 0, SEEK_SET), -1, EBADF); break;
CASE_TEST(lseek_0); EXPECT_SYSER(1, lseek(0, 0, SEEK_SET), -1, ESPIPE); break;
CASE_TEST(mkdir_root); EXPECT_SYSER(1, mkdir("/", 0755), -1, EEXIST); break;