Make sure we close all open files.

sysdeps/linux/glibtop_server.h

@@ -71,10 +71,11 @@ proc_file_to_buffer (char *buffer, const char *fmt, pid_t pid)
     if (fd < 0) return -1;
 
     len = read (fd, buffer, BUFSIZ-1);
-    if (len < 0) return -1;
-
     close (fd);
 
+    if (len < 0)
+	return -1;
+
     buffer [len] = '\0';
 
     return 0;

sysdeps/linux/netinfo.c

@@ -237,7 +237,9 @@ _netinfo_ipv6 (glibtop *server, glibtop_netinfo *buf,
     buf->transport = GLIBTOP_TRANSPORT_IPV6;
     buf->flags |= (1L << GLIBTOP_NETINFO_TRANSPORT);
 
-    if ((f = fopen (_PATH_PROCNET_IFINET6, "r")) != NULL) {
+    f = fopen (_PATH_PROCNET_IFINET6, "r");
+
+    if (f != NULL) {
 	while (fscanf (f, "%64s %02x %02x %02x %02x %20s\n",
 		       addr6, &if_idx, &plen, &scope, &dad_status,
 		       devname) != EOF) {

sysdeps/linux/netload.c

@@ -222,7 +222,10 @@ glibtop_get_netload_s (glibtop *server, glibtop_netload *buf,
     }
 
     /* Should never happen. */
-    if (fields < 2) return -1;
+    if (fields < 2) {
+	fclose (f);
+	return -1;
+    }
     fields--;
 
     while (fgets (buffer, BUFSIZ-1, f)) {

sysdeps/linux/procargs.c

@@ -65,6 +65,7 @@ glibtop_get_proc_args_s (glibtop *server, glibtop_array *array, pid_t pid)
     while (1) {
 	len = read (cmdline, buffer, BUFSIZ-1);
 	if (len < 0) {
+	    close (cmdline);
 	    glibtop_free_r (server, ptr);
 	    return NULL;
 	}