Reduce warnings

zet.dpi.c

@@ -257,7 +257,7 @@ static int zet_has_links(const char *id) {
 	int rc = fstat(fd, &st);
 	if (rc < 0) goto error;
 	char *buf = malloc(st.st_size+1);
-	rc = read_all(fd, buf, st.st_size);
+	rc = read_all(fd, (unsigned char *)buf, st.st_size);
 	if (rc < 0) goto error;
 	buf[st.st_size] = '\0';
 	char *str = buf;
@@ -293,7 +293,7 @@ error:
 
 static char *zet_get_buf_title(const struct buf *link, char *buf, size_t len) {
 	char id_buf[128];
-	strncpy(id_buf, link->data, link->size);
+	strncpy(id_buf, (char *)link->data, link->size);
 	id_buf[sizeof(id_buf)-1] = '\0';
 	return zet_get_title(id_buf + sigil_size, buf, len);
 }
@@ -655,9 +655,9 @@ static int dpi_serve_zet_tails(int fd) {
 
 static void unescape(char *buf, size_t len, const char *str) {
 	struct buf *ob = bufnew(1024);
-	houdini_unescape_url(ob, str, strlen(str));
+	houdini_unescape_url(ob, (unsigned char *)str, strlen(str));
 	if (ob->size < len) len = ob->size;
-	strncpy(buf, ob->data, len);
+	strncpy(buf, (char *)ob->data, len);
 	buf[len] = '\0';
 	bufrelease(ob);
 }
@@ -814,7 +814,7 @@ md_rndr_link(struct buf *ob, const struct buf *link, const struct buf *title, co
 }
 
 static void put_link_truncated(struct buf *ob, const struct buf *link, int max_length) {
-	char *buf = link->data;
+	char *buf = (char *)link->data;
 	size_t len = link->size;
 
 	if (!strncmp(buf, "http", 4)) {
@@ -827,9 +827,12 @@ static void put_link_truncated(struct buf *ob, const struct buf *link, int max_l
 			len -= 8;
 		}
 	}
-	if (len < max_length) return houdini_escape_html0(ob, buf, len, 0);
+	if (len < (size_t)max_length) {
+		houdini_escape_html0(ob, (unsigned char *)buf, len, 0);
+		return;
+	}
 
-	houdini_escape_html0(ob, buf, max_length, 0);
+	houdini_escape_html0(ob, (unsigned char *)buf, max_length, 0);
 	BUFPUTSL(ob, "…");
 }
 
@@ -867,7 +870,7 @@ md_rndr_autolink(struct buf *ob, const struct buf *link, enum mkd_autolink type,
 		char *title = zet_get_buf_title(link, title_buf, sizeof(title_buf));
 		if (title != NULL) {
 			BUFPUTSL(ob, "\" title=\"");
-			houdini_escape_html0(ob, title, strlen(title), 0);
+			houdini_escape_html0(ob, (unsigned char *)title, strlen(title), 0);
 		}
 	}
 
@@ -1147,7 +1150,7 @@ static int parse_multipart(struct http_request *req) {
 
 		if (!strcmp(name, "text")) {
 			req->data = body;
-			req->len = end == NULL ? strlen(body) : end - body;
+			req->len = end == NULL ? strlen(body) : (size_t)end - (size_t)body;
 		}
 	}
 	return 0;