use lseek64 to resolve offset oveflow
The offset variable in lseek is 32 bit and get easily overflow
when accessing with large offset in dd command.
Use lseek64 to resolve it.
Change-Id: Ib75d9dcb587004a6851365ab5bb8584ce1010b57
diff --git a/toolbox/dd.c b/toolbox/dd.c
index 350f1d2..a8c12d2 100644
--- a/toolbox/dd.c
+++ b/toolbox/dd.c
@@ -590,8 +590,8 @@
/* If not a pipe or tape device, try to seek on it. */
if (!(in.flags & (ISPIPE|ISTAPE))) {
- if (lseek(in.fd,
- (off_t)in.offset * (off_t)in.dbsz, SEEK_CUR) == -1) {
+ if (lseek64(in.fd,
+ (off64_t)in.offset * (off64_t)in.dbsz, SEEK_CUR) == -1) {
fprintf(stderr, "%s: seek error: %s",
in.name, strerror(errno));
exit(1);
@@ -661,8 +661,8 @@
* have specified the seek operand.
*/
if (!(out.flags & ISTAPE)) {
- if (lseek(out.fd,
- (off_t)out.offset * (off_t)out.dbsz, SEEK_SET) == -1) {
+ if (lseek64(out.fd,
+ (off64_t)out.offset * (off64_t)out.dbsz, SEEK_SET) == -1) {
fprintf(stderr, "%s: seek error: %s\n",
out.name, strerror(errno));
exit(1);