Ticket #1892: fixed resource leaks.

Fixed memory leak.
Fixed unclosed file descriptors.

Signed-off-by: Andrew Borodin <aborodin@vmail.ru>

edit/editcmd.c

@@ -2188,7 +2188,6 @@ edit_block_process_cmd (WEdit *edit, const char *shell_cmd, int block)
     long start_mark, end_mark;
     char buf[BUFSIZ];
     FILE *script_home = NULL;
-    FILE *script_src = NULL;
     FILE *block_file = NULL;
     gchar *o, *h, *b, *tmp;
     char *quoted_name = NULL;
@@ -2197,16 +2196,23 @@ edit_block_process_cmd (WEdit *edit, const char *shell_cmd, int block)
     h = g_strconcat (home_dir, PATH_SEP_STR EDIT_DIR, shell_cmd, (char *) NULL);	/* home script */
     b = concat_dir_and_file (home_dir, EDIT_BLOCK_FILE);				/* block file */
 
-    if (!(script_home = fopen (h, "r"))) {
+    script_home = fopen (h, "r");
-	if (!(script_home = fopen (h, "w"))) {
+    if (script_home == NULL) {
+	FILE *script_src = NULL;
+
+	script_home = fopen (h, "w");
+	if (script_home == NULL) {
 	    tmp = g_strconcat (_("Error creating script:"), h, (char *) NULL);
 	    edit_error_dialog ("", get_sys_error (tmp));
 	    g_free(tmp);
 	    goto edit_block_process_cmd__EXIT;
 	}
-	if (!(script_src = fopen (o, "r"))) {
+
+	script_src = fopen (o, "r");
+	if (script_src == NULL) {
 	    o = g_strconcat (mc_home_alt, shell_cmd, (char *) NULL);
-	    if (!(script_src = fopen (o, "r"))) {
+	    script_src = fopen (o, "r");
+	    if (script_src == NULL) {
 		fclose (script_home);
 		unlink (h);
 		tmp = g_strconcat (_("Error reading script:"), o, (char *) NULL);
@@ -2217,6 +2223,8 @@ edit_block_process_cmd (WEdit *edit, const char *shell_cmd, int block)
 	}
 	while (fgets (buf, sizeof (buf), script_src))
 	    fputs (buf, script_home);
+	fclose (script_src);
+
 	if (fclose (script_home)) {
 	    tmp = g_strconcat (_("Error closing script:"), h, (char *) NULL);
 	    edit_error_dialog ("", get_sys_error (tmp));

edit/etags.c

@@ -148,7 +148,7 @@ int etags_set_definition_hash(const char *tagfile, const char *start_path,
 
     /* open file with positions */
     f = fopen (tagfile, "r");
-    if (!f)
+    if (f == NULL)
         return 0;
 
     while (fgets (buf, sizeof (buf), f)) {
@@ -197,5 +197,6 @@ int etags_set_definition_hash(const char *tagfile, const char *start_path,
     }
 
     g_free(filename);
+    fclose (f);
     return num;
 }

vfs/mcserv.c

@@ -225,7 +225,7 @@ do_read (void)
 
     rpc_get (msock, RPC_INT, &handle, RPC_INT, &count, RPC_END);
     data = malloc (count);
-    if (!data) {
+    if (data == NULL) {
 	send_status (-1, ENOMEM);
 	return;
     }
@@ -234,12 +234,12 @@ do_read (void)
     n = read (handle, data, count);
     if (verbose)
 	printf ("result=%d\n", n);
-    if (n < 0) {
+    if (n < 0)
 	send_status (-1, errno);
-	return;
+    else {
-    }
 	send_status (n, 0);
 	rpc_send (msock, RPC_BLOCK, n, data, RPC_END);
+    }
 
     g_free (data);
 }