devmem2: fix output when _FILE_OFFSET_BITS=64

From 15eae3dbb3d6824a0fd478e2ce0fe879496bb72c Mon Sep 17 00:00:00 2001

From: Colin Didier <colin.didier@devialet.com>

Date: Thu, 19 Jun 2014 16:58:19 +0200

Subject: [PATCH] be coherent in type usage

- no need to use off_t because it is read from strtoul()

- print unsigned int type correctly

When built with _FILE_OFFSET_BITS=64, off_t becomes an long long int

and was printed as an unsigned int which lead to a garbled output.

Signed-off-by: Colin Didier <colin.didier@devialet.com>

---

 devmem2.c | 7 +++----

 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/devmem2.c b/devmem2.c

index 7732ecb..1ae06ef 100644

--- a/devmem2.c

+++ b/devmem2.c

@@ -58,8 +58,7 @@

 int main(int argc, char **argv) {

     int fd;

     void *map_base, *virt_addr;

-	unsigned long read_result, writeval;

-	off_t target;

+	unsigned long target, read_result, writeval;

 	int access_type = 'w';

 	if(argc < 2) {

@@ -101,7 +100,7 @@ int main(int argc, char **argv) {

 			fprintf(stderr, "Illegal data type '%c'.\n", access_type);

 			exit(2);

 	}

-    printf("Value at address 0x%X (%p): 0x%X\n", target, virt_addr, read_result);

+    printf("Value at address 0x%lX (%p): 0x%lX\n", target, virt_addr, read_result);

     fflush(stdout);

 	if(argc > 3) {

@@ -120,7 +119,7 @@ int main(int argc, char **argv) {

 				read_result = *((unsigned long *) virt_addr);

 				break;

 		}

-		printf("Written 0x%X; readback 0x%X\n", writeval, read_result);

+		printf("Written 0x%lX; readback 0x%lX\n", writeval, read_result);

 		fflush(stdout);

 	}

--