lib vtysh zebra: variable shadowing fixes

Signed-off-by: F. Aragon <paco@voltanet.io>

lib/buffer.c

@@ -445,7 +445,6 @@ in one shot. */
 
 	/* Free printed buffer data. */
 	while (written > 0) {
-		struct buffer_data *d;
 		if (!(d = b->head)) {
 			flog_err(
 				LIB_ERR_DEVELOPMENT,

lib/command_match.c

@@ -195,7 +195,7 @@ static enum matcher_rv command_match_r(struct graph_node *start, vector vline,
 	enum matcher_rv status = MATCHER_NO_MATCH;
 
 	// get the minimum match level that can count as a full match
-	struct cmd_token *token = start->data;
+	struct cmd_token *copy, *token = start->data;
 	enum match_type minmatch = min_match_level(token->type);
 
 	/* check history/stack of tokens
@@ -326,8 +326,8 @@ static enum matcher_rv command_match_r(struct graph_node *start, vector vline,
 	}
 	if (*currbest) {
 		// copy token, set arg and prepend to currbest
-		struct cmd_token *token = start->data;
-		struct cmd_token *copy = cmd_token_dup(token);
+		token = start->data;
+		copy = cmd_token_dup(token);
 		copy->arg = XSTRDUP(MTYPE_CMD_ARG, input_token);
 		listnode_add_before(*currbest, (*currbest)->head, copy);
 	} else if (n + 1 == vector_active(vline) && status == MATCHER_NO_MATCH)

lib/grammar_sandbox.c

@@ -315,7 +315,7 @@ static void cmd_graph_permute(struct list *out, struct graph_node **stack,
 	struct graph_node *gn = stack[stackpos];
 	struct cmd_token *tok = gn->data;
 	char *appendp = cmd + strlen(cmd);
-	size_t i, j;
+	size_t j;
 
 	if (tok->type < SPECIAL_TKN) {
 		sprintf(appendp, "%s ", tok->text);
@@ -332,7 +332,7 @@ static void cmd_graph_permute(struct list *out, struct graph_node **stack,
 	if (++stackpos == CMD_ARGC_MAX)
 		return;
 
-	for (i = 0; i < vector_active(gn->to); i++) {
+	for (size_t i = 0; i < vector_active(gn->to); i++) {
 		struct graph_node *gnext = vector_slot(gn->to, i);
 		for (j = 0; j < stackpos; j++)
 			if (stack[j] == gnext)

lib/linklist.c

@@ -318,8 +318,8 @@ void list_sort(struct list *list, int (*cmp)(const void **, const void **))
 
 	qsort(items, n, sizeof(void *), realcmp);
 
-	for (unsigned int i = 0; i < n; ++i)
-		listnode_add(list, items[i]);
+	for (unsigned int j = 0; j < n; ++j)
+		listnode_add(list, items[j]);
 
 	XFREE(MTYPE_TMP, items);
 }

lib/termtable.c

@@ -395,7 +395,7 @@ char *ttable_dump(struct ttable *tt, const char *newline)
 			memcpy(&buf[pos], left, lsize);
 			pos += lsize;
 
-			for (size_t i = 0; i < width - lsize - rsize; i++)
+			for (size_t l = 0; l < width - lsize - rsize; l++)
 				buf[pos++] = row[0].style.border.top;
 
 			pos -= width - lsize - rsize;
@@ -421,7 +421,7 @@ char *ttable_dump(struct ttable *tt, const char *newline)
 				buf[pos++] = row[j].style.border.left;
 
 			/* print left padding */
-			for (int i = 0; i < row[j].style.lpad; i++)
+			for (int k = 0; k < row[j].style.lpad; k++)
 				buf[pos++] = ' ';
 
 			/* calculate padding for sprintf */
@@ -443,7 +443,7 @@ char *ttable_dump(struct ttable *tt, const char *newline)
 			pos += sprintf(&buf[pos], fmt, abspad, row[j].text);
 
 			/* print right padding */
-			for (int i = 0; i < row[j].style.rpad; i++)
+			for (int k = 0; k < row[j].style.rpad; k++)
 				buf[pos++] = ' ';
 
 			/* if right border && not last col print right border */
@@ -483,7 +483,7 @@ char *ttable_dump(struct ttable *tt, const char *newline)
 		memcpy(&buf[pos], left, lsize);
 		pos += lsize;
 
-		for (size_t i = 0; i < width - lsize - rsize; i++)
+		for (size_t l = 0; l < width - lsize - rsize; l++)
 			buf[pos++] = tt->style.border.bottom;
 
 		memcpy(&buf[pos], right, rsize);

vtysh/vtysh_main.c

@@ -596,7 +596,6 @@ int main(int argc, char **argv, char **env)
 			vtysh_execute("enable");
 
 		while (cmd != NULL) {
-			int ret;
 			char *eol;
 
 			while ((eol = strchr(cmd->line, '\n')) != NULL) {
@@ -662,7 +661,7 @@ int main(int argc, char **argv, char **env)
 	/* Boot startup configuration file. */
 	if (boot_flag) {
 		vtysh_flock_config(frr_config);
-		int ret = vtysh_read_config(frr_config);
+		ret = vtysh_read_config(frr_config);
 		vtysh_unflock_config();
 		if (ret) {
 			fprintf(stderr,

zebra/rt_netlink.c

@@ -581,7 +581,7 @@ static int netlink_route_change_read_unicast(struct nlmsghdr *h, ns_id_t ns_id,
 
 			for (;;) {
 				struct nexthop *nh = NULL;
-				vrf_id_t nh_vrf_id;
+
 				if (len < (int)sizeof(*rtnh)
 				    || rtnh->rtnh_len > len)
 					break;
@@ -2271,7 +2271,7 @@ static int netlink_ipneigh_change(struct nlmsghdr *h, int len, ns_id_t ns_id)
 
 	/* Drop some "permanent" entries. */
 	if (ndm->ndm_state & NUD_PERMANENT) {
-		char buf[16] = "169.254.0.1";
+		char b[16] = "169.254.0.1";
 		struct in_addr ipv4_ll;
 
 		if (ndm->ndm_family != AF_INET)
@@ -2283,7 +2283,7 @@ static int netlink_ipneigh_change(struct nlmsghdr *h, int len, ns_id_t ns_id)
 		if (h->nlmsg_type != RTM_DELNEIGH)
 			return 0;
 
-		inet_pton(AF_INET, buf, &ipv4_ll);
+		inet_pton(AF_INET, b, &ipv4_ll);
 		if (ipv4_ll.s_addr != ip.ip._v4_addr.s_addr)
 			return 0;