[glib: 18/19] add OOM handling in mimemagic

[Philip Withnall <pwithnall src gnome org>]

commit 9f1c59eef2e21b5a80c22d44deec2cba884cdfce
Author: Egor Bychin <e bychin drweb com>
Date:   Mon Oct 11 15:31:01 2021 +0300

    add OOM handling in mimemagic

 gio/xdgmime/xdgmimemagic.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)
---
diff --git a/gio/xdgmime/xdgmimemagic.c b/gio/xdgmime/xdgmimemagic.c
index c68e27bed..08b2c6da4 100644
--- a/gio/xdgmime/xdgmimemagic.c
+++ b/gio/xdgmime/xdgmimemagic.c
@@ -103,6 +103,8 @@ _xdg_mime_magic_matchlet_new (void)
   XdgMimeMagicMatchlet *matchlet;
 
   matchlet = malloc (sizeof (XdgMimeMagicMatchlet));
+  if (matchlet == NULL)
+    return NULL;
 
   matchlet->indent = 0;
   matchlet->offset = 0;
@@ -355,6 +357,11 @@ _xdg_mime_magic_parse_magic_line (FILE              *magic_file,
     return XDG_MIME_MAGIC_ERROR;
 
   matchlet = _xdg_mime_magic_matchlet_new ();
+
+  /* OOM */
+  if (matchlet == NULL)
+    return XDG_MIME_MAGIC_ERROR;
+
   matchlet->indent = indent;
   matchlet->offset = _xdg_mime_magic_read_a_number (magic_file, &end_of_file);
   if (end_of_file)
@@ -767,6 +774,11 @@ _xdg_mime_magic_read_magic_file (XdgMimeMagic *mime_magic,
        {
        case XDG_MIME_MAGIC_SECTION:
          match = _xdg_mime_magic_match_new ();
+
+         /* OOM */
+         if (match == NULL)
+           return;
+
          state = _xdg_mime_magic_parse_header (magic_file, match);
          if (state == XDG_MIME_MAGIC_EOF || state == XDG_MIME_MAGIC_ERROR)
            _xdg_mime_magic_match_free (match);