diff options
Diffstat (limited to 'testcases/kernel/syscalls/dup/dup03.c')
| -rw-r--r-- | testcases/kernel/syscalls/dup/dup03.c | 34 |
1 files changed, 8 insertions, 26 deletions
diff --git a/testcases/kernel/syscalls/dup/dup03.c b/testcases/kernel/syscalls/dup/dup03.c index 0e99813f4..d59e61f2b 100644 --- a/testcases/kernel/syscalls/dup/dup03.c +++ b/testcases/kernel/syscalls/dup/dup03.c @@ -6,48 +6,30 @@ */ /*\ * [Description] - * Negative test for dup(2) (too many fds). * - * [Algorithm] - * Open the maximum allowed number of file descriptors and then try to call - * dup() once more and verify it fails with EMFILE. + * Verify that dup(2) syscall fails with errno EMFILE when the per-process + * limit on the number of open file descriptors has been reached. */ #include <stdlib.h> #include "tst_test.h" -int *fd; -int nfds; +static int *fd; +static int nfds; static void run(void) { - TEST(dup(fd[0])); + TST_EXP_FAIL2(dup(fd[0]), EMFILE, "dup(%d)", fd[0]); - if (TST_RET < -1) { - tst_res(TFAIL, "Invalid dup() return value %ld", TST_RET); - return; - } - - if (TST_RET == -1) { - if (TST_ERR == EMFILE) - tst_res(TPASS | TTERRNO, "dup() failed as expected"); - else - tst_res(TFAIL | TTERRNO, "dup() failed unexpectedly"); - return; - } - - tst_res(TFAIL, "dup() succeeded unexpectedly"); - SAFE_CLOSE(TST_RET); + if (TST_RET != -1) + SAFE_CLOSE(TST_RET); } static void setup(void) { long maxfds; - maxfds = sysconf(_SC_OPEN_MAX); - if (maxfds == -1) - tst_brk(TBROK, "sysconf(_SC_OPEN_MAX) failed"); - + maxfds = SAFE_SYSCONF(_SC_OPEN_MAX); fd = SAFE_MALLOC(maxfds * sizeof(int)); fd[0] = SAFE_OPEN("dupfile", O_RDWR | O_CREAT, 0700); |