res/res_http_websocket: Fix minor nits found by wdoekes on r409681

When Moises committed the fixes for WSS (which was a great patch), wdoekes had
a few style nits that were on the review that got missed. This patch resolves
what I *think* were all of the ones that were still on the review.

Thanks to both moy for the patch, and wdoekes for the reviews.

Review: https://reviewboard.asterisk.org/r/3248/
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Merged revisions 426209 from http://svn.asterisk.org/svn/asterisk/branches/11
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Merged revisions 426210 from http://svn.asterisk.org/svn/asterisk/branches/12
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Merged revisions 426211 from http://svn.asterisk.org/svn/asterisk/branches/13


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@426212 65c4cc65-6c06-0410-ace0-fbb531ad65f3

res/res_http_websocket.c

@@ -416,27 +416,27 @@ static inline int ws_safe_read(struct ast_websocket *session, char *buf, int len
 	for (sanity = 10; sanity; sanity--) {
 		clearerr(session->f);
 		rlen = fread(rbuf, 1, xlen, session->f);
-		if (0 == rlen && ferror(session->f) && errno != EAGAIN) {
+		if (!rlen && ferror(session->f) && errno != EAGAIN) {
 			ast_log(LOG_ERROR, "Error reading from web socket: %s\n", strerror(errno));
-			(*opcode) = AST_WEBSOCKET_OPCODE_CLOSE;
+			*opcode = AST_WEBSOCKET_OPCODE_CLOSE;
 			session->closing = 1;
 			return -1;
 		}
-		xlen = (xlen - rlen);
+		xlen = xlen - rlen;
 		rbuf = rbuf + rlen;
-		if (0 == xlen) {
+		if (!xlen) {
 			break;
 		}
 		if (ast_wait_for_input(session->fd, 1000) < 0) {
 			ast_log(LOG_ERROR, "ast_wait_for_input returned err: %s\n", strerror(errno));
-			(*opcode) = AST_WEBSOCKET_OPCODE_CLOSE;
+			*opcode = AST_WEBSOCKET_OPCODE_CLOSE;
 			session->closing = 1;
 			return -1;
 		}
 	}
 	if (!sanity) {
 		ast_log(LOG_WARNING, "Websocket seems unresponsive, disconnecting ...\n");
-		(*opcode) = AST_WEBSOCKET_OPCODE_CLOSE;
+		*opcode = AST_WEBSOCKET_OPCODE_CLOSE;
 		session->closing = 1;
 		return -1;
 	}
@@ -502,7 +502,7 @@ int AST_OPTIONAL_API_NAME(ast_websocket_read)(struct ast_websocket *session, cha
 			return -1;
 		}
 
-		if (ws_safe_read(session, (*payload), (*payload_len), opcode)) {
+		if (ws_safe_read(session, *payload, *payload_len, opcode)) {
 			return 0;
 		}
 		/* If a mask is present unmask the payload */
@@ -839,7 +839,7 @@ static void websocket_echo_callback(struct ast_websocket *session, struct ast_va
 	}
 
 end:
-	ast_debug(1, "Exitting WebSocket echo loop\n");
+	ast_debug(1, "Exiting WebSocket echo loop\n");
 	ast_websocket_unref(session);
 }