setrlimit: Check arguments in the same order as in Linux

(1) Check if rlim's address is valid
(2) Check if soft-limit does not exceed hard-limit

Fujitsu: POSTK_DEBUG_TEMP_FIX_3
Refs: #1050
Change-Id: I5bf1008ce172f9dff64ec89b1f97614926abaf13

test/issues/1050/CT_004.c

@@ -0,0 +1,66 @@
+#define _GNU_SOURCE 1
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <errno.h>
+#include <sys/time.h>
+#include <sys/resource.h>
+#include "./test_chk.h"
+
+#define TEST_NAME "CT_004"
+
+int main(int argc, char **argv)
+{
+	struct rlimit get_rlim, set_rlim;
+	int rc, resource;
+	int __errno;
+	rlim_t set_max, set_cur;
+
+
+	printf("*** %s start *******************************\n", TEST_NAME);
+	CHKANDJUMP(geteuid() != 0, "Test needs to be run as root");
+
+	resource = RLIMIT_MSGQUEUE;
+	rc = getrlimit(resource, &get_rlim);
+
+	OKNG(rc != 0, "getrlimit cur:%lx max:%lx",
+		get_rlim.rlim_cur, get_rlim.rlim_max);
+
+	set_max = get_rlim.rlim_max + 10;
+	if (get_rlim.rlim_cur > set_max) {
+		set_cur = set_max;
+	}
+	else {
+		set_cur = get_rlim.rlim_cur;
+	}
+
+	set_rlim.rlim_cur = set_cur;
+	set_rlim.rlim_max = set_max;
+
+	errno = 0;
+	rc = setrlimit(resource, &set_rlim);
+	__errno = errno;
+
+	OKNG(rc != 0, "setrlimit cur:%lx max:%lx  returned %d"
+		" (expect return is 0)",
+		set_rlim.rlim_cur, set_rlim.rlim_max, rc);
+
+	OKNG(__errno != 0, "errno after setrlimit :%d"
+		" (expect error is 0)", __errno);
+
+	rc = getrlimit(resource, &get_rlim);
+	OKNG(get_rlim.rlim_max != set_max, "getrlimit cur:%lx max:%lx"
+		" (expect max is %lx)",
+		get_rlim.rlim_cur, get_rlim.rlim_max, set_max);
+
+	printf("*** %s PASSED\n\n", TEST_NAME);
+
+	return 0;
+
+fn_fail:
+	printf("*** %s FAILED\n\n", TEST_NAME);
+
+	return -1;
+}