[uclibc-ng-devel] [PATCH] misc: add tests for getrlimit/setrlimit/prlimit

From: Pavel Kozlov &lt;pavel.kozlov(a)synopsys.com&gt; Add tst-rlimit test to check setrlimit/getrlimit/prlimit and setrlimit64/getrlimit64/prlimit64 functions. Add tst-rlimit64 to check the 64-bit offset variant. Signed-off-by: Pavel Kozlov &lt;pavel.kozlov(a)synopsys.com&gt; --- test/misc/Makefile.in | 1 + test/misc/tst-rlimit.c | 157 +++++++++++++++++++++++++++++++++++++++ test/misc/tst-rlimit64.c | 1 + 3 files changed, 159 insertions(+) create mode 100644 test/misc/tst-rlimit.c create mode 100644 test/misc/tst-rlimit64.c diff --git a/test/misc/Makefile.in b/test/misc/Makefile.in index a97b124e4a35..96c1fd976f0e 100644 --- a/test/misc/Makefile.in +++ b/test/misc/Makefile.in @@ -8,6 +8,7 @@ TESTS_DISABLED += tst-inotify endif CFLAGS_dirent64 := -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 +CFLAGS_tst-rlimit64 := -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 DODIFF_dirent := 1 DODIFF_dirent64 := 1 diff --git a/test/misc/tst-rlimit.c b/test/misc/tst-rlimit.c new file mode 100644 index 000000000000..84aa465869da --- /dev/null +++ b/test/misc/tst-rlimit.c @@ -0,0 +1,157 @@ +/* + * setrlimit/getrlimit/prlimit and setrlimit64/getrlimit64/prlimit64 functions + * test for uClibc. + * + * The prlimit64 function is not called directly in this test, because it is a + * new function for uclibc and can cause build problems with uclibc-ng <= 1.0.44. + * With _FILE_OFFSET_BITS == 64 the prlimit call is redirected to the prlimit64 + * call. + */ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <errno.h> +#include <sys/resource.h> + +#define __ASSERT(x, f, l) \ + if (!(x)) { \ + fprintf(stderr, "%s: LINE %d: ASSERT: " #x "\n", f, l); \ + exit(1); \ + } + +#define ASSERT(x) __ASSERT(x, __FILE__, __LINE__) + +static int resources[] = { + RLIMIT_CORE, + RLIMIT_CPU, + RLIMIT_DATA, + RLIMIT_FSIZE, + RLIMIT_NOFILE, + RLIMIT_STACK, + RLIMIT_AS +}; + +#define nresources (sizeof (resources) / sizeof (resources[0])) +#define TEST_VAL 0x11223344 + + +static void test_getrlimit(int rnum, rlim_t exp_cur, rlim_t exp_max) +{ + struct rlimit r; + + ASSERT(getrlimit(rnum, &r) == 0); + ASSERT(r.rlim_cur == exp_cur); + ASSERT(r.rlim_max == exp_max); +} + +static void test_setrlimit(int rnum, rlim_t new_cur, rlim_t new_max) +{ + struct rlimit r = {.rlim_cur = new_cur, .rlim_max = new_max}; + + ASSERT(setrlimit(rnum, &r) == 0); +} + +static void test_prlimit_get(int rnum, rlim_t exp_cur, rlim_t exp_max) +{ + struct rlimit r; + + ASSERT(prlimit(0, rnum, NULL, &r) == 0); + ASSERT(r.rlim_cur == exp_cur); + ASSERT(r.rlim_max == exp_max); +} + +static void test_prlimit_set(int rnum, rlim_t new_cur, rlim_t new_max) +{ + struct rlimit r = {.rlim_cur = new_cur, .rlim_max = new_max}; + ASSERT(prlimit(0, rnum, &r, NULL) == 0); +} + +#if defined(__USE_LARGEFILE64) +static void test_getrlimit64(int rnum, rlim64_t exp_cur, rlim64_t exp_max) +{ + struct rlimit64 r; + + ASSERT(getrlimit64(rnum, &r) == 0); + ASSERT(r.rlim_cur == exp_cur); + ASSERT(r.rlim_max == exp_max); +} + +static void test_setrlimit64(int rnum, rlim64_t new_cur, rlim64_t new_max) +{ + struct rlimit64 r = {.rlim_cur = new_cur, .rlim_max = new_max}; + + ASSERT(setrlimit64(rnum, &r) == 0); +} +#endif + +int main(void) +{ + int rnum = -1; + struct rlimit rlim; + int i, ret; + + /* Find a resource with hard limit set to infinity */ + for (i = 0; i < nresources; ++i) { + ret = getrlimit(resources[i], &rlim); + if ((!ret) && (rlim.rlim_max == RLIM_INFINITY)) { + rnum = resources[i]; + break; + } + } + + /* Can't continue, return unsupported */ + if (rnum == -1) + return 23; + + /* Test cases */ + test_setrlimit(rnum, TEST_VAL, RLIM_INFINITY); + test_getrlimit(rnum, TEST_VAL, RLIM_INFINITY); + test_setrlimit(rnum, RLIM_INFINITY, RLIM_INFINITY); + test_getrlimit(rnum, RLIM_INFINITY, RLIM_INFINITY); + test_prlimit_get(rnum, RLIM_INFINITY, RLIM_INFINITY); + test_prlimit_set(rnum, TEST_VAL, RLIM_INFINITY); + test_prlimit_get(rnum, TEST_VAL, RLIM_INFINITY); + test_getrlimit(rnum, TEST_VAL, RLIM_INFINITY); + test_prlimit_set(rnum, RLIM_INFINITY, RLIM_INFINITY); + test_getrlimit(rnum, RLIM_INFINITY, RLIM_INFINITY); + test_prlimit_get(rnum, RLIM_INFINITY, RLIM_INFINITY); + +#if defined(__USE_LARGEFILE64) + /* Check setrlim64 and getrlim64 in 32-bit offset LFS environment */ + test_setrlimit64(rnum, TEST_VAL, RLIM64_INFINITY); + test_getrlimit(rnum, TEST_VAL, RLIM_INFINITY); + test_getrlimit64(rnum, TEST_VAL, RLIM64_INFINITY); + test_setrlimit64(rnum, RLIM64_INFINITY, RLIM64_INFINITY); + test_prlimit_get(rnum, RLIM_INFINITY, RLIM_INFINITY); + test_getrlimit64(rnum, RLIM64_INFINITY, RLIM64_INFINITY); + + test_setrlimit(rnum, TEST_VAL, RLIM_INFINITY); + test_getrlimit64(rnum, TEST_VAL, RLIM64_INFINITY); + test_prlimit_set(rnum, RLIM_INFINITY, RLIM_INFINITY); + test_getrlimit64(rnum, RLIM64_INFINITY, RLIM64_INFINITY); +#endif + + +#if defined(__USE_LARGEFILE64) && _FILE_OFFSET_BITS == 64 + /* Check setrlim64/getrlim64/prlimit64 in 64-bit offset environment */ + test_setrlimit64(rnum, TEST_VAL, RLIM64_INFINITY); + test_getrlimit64(rnum, TEST_VAL, RLIM64_INFINITY); + test_getrlimit(rnum, TEST_VAL, RLIM_INFINITY); + test_setrlimit64(rnum, RLIM64_INFINITY, RLIM64_INFINITY); + test_prlimit_get(rnum, RLIM64_INFINITY, RLIM64_INFINITY); + test_getrlimit(rnum, RLIM_INFINITY, RLIM_INFINITY); + test_prlimit_set(rnum, TEST_VAL, RLIM64_INFINITY); + test_prlimit_get(rnum, TEST_VAL, RLIM64_INFINITY); + test_prlimit_set(rnum, RLIM64_INFINITY, RLIM64_INFINITY); + test_getrlimit64(rnum, RLIM64_INFINITY, RLIM64_INFINITY); + test_getrlimit(rnum, RLIM_INFINITY, RLIM_INFINITY); + + test_setrlimit(rnum, TEST_VAL, RLIM_INFINITY); + test_getrlimit64(rnum, TEST_VAL, RLIM64_INFINITY); + test_prlimit_set(rnum, RLIM_INFINITY, RLIM_INFINITY); + test_getrlimit64(rnum, RLIM64_INFINITY, RLIM64_INFINITY); +#endif + + return 0; +} diff --git a/test/misc/tst-rlimit64.c b/test/misc/tst-rlimit64.c new file mode 100644 index 000000000000..490c6c59022c --- /dev/null +++ b/test/misc/tst-rlimit64.c @@ -0,0 +1 @@ +#include "tst-rlimit.c" -- 2.25.1