From: Jaroslav Kysela <perex@perex.cz>
Date: Fri, 9 Oct 2015 15:03:19 +0000 (+0200)
Subject: deferred_unlink: fix for very long filenames, fixes #3136
X-Git-Tag: v4.2.1~1952
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=1ffad11881c63db416f2ee957740ab1a29d145b7;p=thirdparty%2Ftvheadend.git

deferred_unlink: fix for very long filenames, fixes #3136
---

diff --git a/src/utils.c b/src/utils.c
index 23ea46d6a..4da475119 100644
--- a/src/utils.c
+++ b/src/utils.c
@@ -702,13 +702,20 @@ deferred_unlink(const char *filename, const char *rootdir)
   char *s;
   size_t l;
   int r;
+  long max;
 
   l = strlen(filename);
   s = malloc(l + 9 + 1);
   if (s == NULL)
     return -ENOMEM;
+  max = pathconf(filename, _PC_NAME_MAX);
   strcpy(s, filename);
-  strcpy(s + l, ".removing");
+  if (l + 10 < max) {
+    s[0] = '.';
+    strcpy(s + l, ".removing");
+  } else {
+    memcpy(s, ".rm.", 4);
+  }
   r = rename(filename, s);
   if (r) {
     r = -errno;