[LTP] [PATCH 1/4] syscalls/ipc: shmctl04: Parse /proc/sysvipc/shm size as unsigned long

[Guixiong Wei]

The size column in /proc/sysvipc/shm may exceed int range on
some systems. Parse it as unsigned long.

Signed-off-by: Guixiong Wei <weiguixiong@bytedance.com>
---
 testcases/kernel/syscalls/ipc/shmctl/shmctl04.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/testcases/kernel/syscalls/ipc/shmctl/shmctl04.c b/testcases/kernel/syscalls/ipc/shmctl/shmctl04.c
index 3ba05f9b5..908cd2926 100644
--- a/testcases/kernel/syscalls/ipc/shmctl/shmctl04.c
+++ b/testcases/kernel/syscalls/ipc/shmctl/shmctl04.c
@@ -57,7 +57,8 @@ static void parse_proc_sysvipc(struct shm_info *info)
 			break;
 	}
 
-	int shmid, size, rss, swap;
+	int shmid, rss, swap;
+	unsigned long size;
 
 	/*
 	 * Sum rss, swap and size for all elements listed, which should equal
@@ -66,7 +67,7 @@ static void parse_proc_sysvipc(struct shm_info *info)
 	 * Note that the size has to be rounded up to nearest multiple of page
 	 * size.
 	 */
-	while (fscanf(f, "%*i %i %*i %i %*i %*i %*i %*i %*i %*i %*i %*i %*i %*i %i %i",
+	while (fscanf(f, "%*i %i %*i %lu %*i %*i %*i %*i %*i %*i %*i %*i %*i %*i %i %i",
 			&shmid, &size, &rss, &swap) > 0) {
 		used_ids++;
 		shm_rss += rss/page_size;
-- 
2.20.1