tests: move DEFAULT_STRLEN macro to tests.h

* tests/tests.h [!DEFAULT_STRLEN] (DEFAULT_STRLEN): New macro.
* tests/mincore.c (DEFAULT_STRLEN): Remove.
* tests/mmsg_name.c: Likewise.
* tests/msg_control.c: Likewise.
* tests/netlink_protocol.c: Likewise.
* tests/nlattr.c: Likewise.
* tests/nlattr_inet_diag_msg.c: Likewise.
* tests/nlattr_netlink_diag_msg.c: Likewise.
* tests/nlattr_unix_diag_msg.c: Likewise.
* tests/printstr.c: Likewise.
* tests/xattr.c: Likewise.
* tests/execve.c: Likewise.
(main): Initialize str_a and str_b arrays at run time.
* tests/execveat.c: Likewise.

Suggested-by: JingPiao Chen <chenjingpiao@gmail.com>

13 files changed, 21 insertions, 21 deletions

diff --git a/tests/execve.c b/tests/execve.c
index c558dd3b2..da3bc5200 100644
--- a/tests/execve.c
+++ b/tests/execve.c
@@ -127,9 +127,14 @@ main(void)
 #endif
 	       );
 
-	char str_a[] = "012345678901234567890123456789012";
-	char str_b[] = "_abcdefghijklmnopqrstuvwxyz()[]{}";
-#define DEFAULT_STRLEN ((unsigned int) sizeof(str_a) - 2)
+	char *const str_a = tail_alloc(DEFAULT_STRLEN + 2);
+	fill_memory_ex(str_a, DEFAULT_STRLEN + 1, '0', 10);
+	str_a[DEFAULT_STRLEN + 1] = '\0';
+
+	char *const str_b = tail_alloc(DEFAULT_STRLEN + 2);
+	fill_memory_ex(str_b, DEFAULT_STRLEN + 1, '_', 32);
+	str_b[DEFAULT_STRLEN + 1] = '\0';
+
 	char **const a = tail_alloc(sizeof(*a) * (DEFAULT_STRLEN + 2));
 	char **const b = tail_alloc(sizeof(*b) * (DEFAULT_STRLEN + 2));
 	unsigned int i;
diff --git a/tests/execveat.c b/tests/execveat.c
index 8ffc4d588..566a59f9e 100644
--- a/tests/execveat.c
+++ b/tests/execveat.c
@@ -133,9 +133,14 @@ main(void)
 #endif
 	       errno2name());
 
-	char str_a[] = "012345678901234567890123456789012";
-	char str_b[] = "_abcdefghijklmnopqrstuvwxyz()[]{}";
-#define DEFAULT_STRLEN ((unsigned int) sizeof(str_a) - 2)
+	char *const str_a = tail_alloc(DEFAULT_STRLEN + 2);
+	fill_memory_ex(str_a, DEFAULT_STRLEN + 1, '0', 10);
+	str_a[DEFAULT_STRLEN + 1] = '\0';
+
+	char *const str_b = tail_alloc(DEFAULT_STRLEN + 2);
+	fill_memory_ex(str_b, DEFAULT_STRLEN + 1, '_', 32);
+	str_b[DEFAULT_STRLEN + 1] = '\0';
+
 	char **const a = tail_alloc(sizeof(*a) * (DEFAULT_STRLEN + 2));
 	char **const b = tail_alloc(sizeof(*b) * (DEFAULT_STRLEN + 2));
 	unsigned int i;
diff --git a/tests/mincore.c b/tests/mincore.c
index ea2b49e38..0ede687d6 100644
--- a/tests/mincore.c
+++ b/tests/mincore.c
@@ -29,8 +29,6 @@
 #include <stdio.h>
 #include <sys/mman.h>
 
-#define DEFAULT_STRLEN 32
-
 static void
 print_mincore(const unsigned int pages, void *const addr,
 	      const size_t size, unsigned char *const vec)
diff --git a/tests/mmsg_name.c b/tests/mmsg_name.c
index ac8dcde7e..ad5a482d4 100644
--- a/tests/mmsg_name.c
+++ b/tests/mmsg_name.c
@@ -40,8 +40,6 @@
 
 #include "msghdr.h"
 
-#define DEFAULT_STRLEN 32
-
 #define IOV_MAX1 (IOV_MAX + 1)
 
 #ifndef TEST_NAME
diff --git a/tests/msg_control.c b/tests/msg_control.c
index 5b6b25a5d..b63f2d04e 100644
--- a/tests/msg_control.c
+++ b/tests/msg_control.c
@@ -63,8 +63,6 @@ get_cmsghdr(void *const page, const size_t len)
 	return page - CMSG_ALIGN(len);
 }
 
-#define DEFAULT_STRLEN 32
-
 static void
 print_fds(const struct cmsghdr *const cmsg, const size_t cmsg_len)
 {
diff --git a/tests/netlink_protocol.c b/tests/netlink_protocol.c
index d0479805e..f09dd9a96 100644
--- a/tests/netlink_protocol.c
+++ b/tests/netlink_protocol.c
@@ -169,7 +169,6 @@ send_query(const int fd)
 	       (unsigned) sizeof(*reqs), sprintrc(rc));
 
 	/* abbreviated output */
-# define DEFAULT_STRLEN 32
 # define ABBREV_LEN (DEFAULT_STRLEN + 1)
 	const unsigned int msg_len = sizeof(struct nlmsghdr) * ABBREV_LEN;
 	struct nlmsghdr *const msgs = tail_alloc(msg_len);
diff --git a/tests/nlattr.c b/tests/nlattr.c
index 15a0ad1fb..7361eced0 100644
--- a/tests/nlattr.c
+++ b/tests/nlattr.c
@@ -210,7 +210,6 @@ test_nlattr(const int fd)
 	       fd, msg_len, nla->nla_len, msg_len, sprintrc(rc));
 
 	/* abbreviated output */
-#define DEFAULT_STRLEN 32
 #define ABBREV_LEN (DEFAULT_STRLEN + 1)
 	msg_len = NLA_HDRLEN * ABBREV_LEN + NLMSG_SPACE(sizeof(msg->udm));
 	msg = tail_memdup(&c_msg, msg_len);
diff --git a/tests/nlattr_inet_diag_msg.c b/tests/nlattr_inet_diag_msg.c
index 33397c787..306b86654 100644
--- a/tests/nlattr_inet_diag_msg.c
+++ b/tests/nlattr_inet_diag_msg.c
@@ -96,7 +96,6 @@ main(void)
 	const unsigned int hdrlen = sizeof(struct inet_diag_msg);
 	void *const nlh0 = tail_alloc(NLMSG_SPACE(hdrlen));
 
-#define DEFAULT_STRLEN 32
 	static char pattern[DEFAULT_STRLEN];
 	fill_memory_ex(pattern, sizeof(pattern), 'a', 'z' - 'a' + 1);
 
diff --git a/tests/nlattr_netlink_diag_msg.c b/tests/nlattr_netlink_diag_msg.c
index a7f7e58e6..37e3a0127 100644
--- a/tests/nlattr_netlink_diag_msg.c
+++ b/tests/nlattr_netlink_diag_msg.c
@@ -80,7 +80,6 @@ main(void)
 	const unsigned int hdrlen = sizeof(struct netlink_diag_msg);
 	void *const nlh0 = tail_alloc(NLMSG_SPACE(hdrlen));
 
-#define DEFAULT_STRLEN 32
 	static char pattern[DEFAULT_STRLEN];
 	fill_memory_ex(pattern, sizeof(pattern), 'a', 'z' - 'a' + 1);
 
diff --git a/tests/nlattr_unix_diag_msg.c b/tests/nlattr_unix_diag_msg.c
index 59444c458..a11328b19 100644
--- a/tests/nlattr_unix_diag_msg.c
+++ b/tests/nlattr_unix_diag_msg.c
@@ -79,7 +79,6 @@ main(void)
 	const unsigned int hdrlen = sizeof(struct unix_diag_msg);
 	void *const nlh0 = tail_alloc(NLMSG_SPACE(hdrlen));
 
-#define DEFAULT_STRLEN 32
 	static char pattern[DEFAULT_STRLEN];
 	fill_memory_ex(pattern, sizeof(pattern), 'a', 'z' - 'a' + 1);
 
diff --git a/tests/printstr.c b/tests/printstr.c
index 356ae2eca..8e2268135 100644
--- a/tests/printstr.c
+++ b/tests/printstr.c
@@ -34,8 +34,6 @@
 #include <unistd.h>
 #include <sys/uio.h>
 
-#define DEFAULT_STRLEN 32
-
 int
 main(void)
 {
diff --git a/tests/tests.h b/tests/tests.h
index 00d10eaec..094f36508 100644
--- a/tests/tests.h
+++ b/tests/tests.h
@@ -51,6 +51,11 @@
 # define VERBOSE 0
 #endif
 
+#ifndef DEFAULT_STRLEN
+/* Default maximum # of bytes printed in printstr et al. */
+# define DEFAULT_STRLEN 32
+#endif
+
 /* Cached sysconf(_SC_PAGESIZE). */
 size_t get_page_size(void);
 
diff --git a/tests/xattr.c b/tests/xattr.c
index a772eced6..03b4270aa 100644
--- a/tests/xattr.c
+++ b/tests/xattr.c
@@ -36,8 +36,6 @@
 #  define XATTR_SIZE_MAX 65536
 # endif
 
-#define DEFAULT_STRLEN 32
-
 int
 main(void)
 {