Fix types-related warnings based on clang diagnostics

1. Fix some places where unsigned value compared < 0
2. Fix obsolete %Z specifier to more portable %z
3. Some erroneous types substitution
4. nl_msec2str() - 64-bit msec is now properly used,

Only safe changes. I mean int <--> uint32_t and signed/unsigned fixes.
Some functinos require size_t argument instead of int, but changes of
signatures of that functions is terrible thing.

Also, I do not pretend for a full list of fixes.
Just to shut up clang -Wall -Wextra

One more thing. ifindex. I don't change that because changes will
be too big for simple fix.

1 files changed, 4 insertions, 4 deletions

diff --git a/lib/msg.c b/lib/msg.c
index 18174b5..0adc091 100644
--- a/lib/msg.c
+++ b/lib/msg.c
@@ -178,7 +178,7 @@ int nlmsg_valid_hdr(const struct nlmsghdr *nlh, int hdrlen)
  */
 int nlmsg_ok(const struct nlmsghdr *nlh, int remaining)
 {
-	return (remaining >= (int)sizeof(struct nlmsghdr) &&
+	return (remaining >= sizeof(struct nlmsghdr) &&
 		nlh->nlmsg_len >= sizeof(struct nlmsghdr) &&
 		nlh->nlmsg_len <= remaining);
 }
@@ -867,7 +867,7 @@ void nl_msg_dump(struct nl_msg *msg, FILE *ofd)
 	"--------------------------   BEGIN NETLINK MESSAGE "
 	"---------------------------\n");
 
-	fprintf(ofd, "  [HEADER] %Zu octets\n", sizeof(struct nlmsghdr));
+	fprintf(ofd, "  [HEADER] %zu octets\n", sizeof(struct nlmsghdr));
 	print_hdr(ofd, msg);
 
 	if (hdr->nlmsg_type == NLMSG_ERROR &&
@@ -875,10 +875,10 @@ void nl_msg_dump(struct nl_msg *msg, FILE *ofd)
 		struct nl_msg *errmsg;
 		struct nlmsgerr *err = nlmsg_data(hdr);
 
-		fprintf(ofd, "  [ERRORMSG] %Zu octets\n", sizeof(*err));
+		fprintf(ofd, "  [ERRORMSG] %zu octets\n", sizeof(*err));
 		fprintf(ofd, "    .error = %d \"%s\"\n", err->error,
 			strerror(-err->error));
-		fprintf(ofd, "  [ORIGINAL MESSAGE] %Zu octets\n", sizeof(*hdr));
+		fprintf(ofd, "  [ORIGINAL MESSAGE] %zu octets\n", sizeof(*hdr));
 
 		errmsg = nlmsg_inherit(&err->msg);
 		print_hdr(ofd, errmsg);