X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=contrib%2Fdocker%2Frootfs_prefix%2Frootfs_prefix.c;h=fdacf74348468b45f1e60843a9cf8f38f2731a84;hb=7c9d772c992647fcba64a96800c146eb9f1647f8;hp=c27a67afd12eeebfcc94dfba288c5a464bbe4373;hpb=fe6da88c2eb1637ef6dce0a7d928c202ededc450;p=collectd.git

diff --git a/contrib/docker/rootfs_prefix/rootfs_prefix.c b/contrib/docker/rootfs_prefix/rootfs_prefix.c
index c27a67af..fdacf743 100644
--- a/contrib/docker/rootfs_prefix/rootfs_prefix.c
+++ b/contrib/docker/rootfs_prefix/rootfs_prefix.c
@@ -1,3 +1,33 @@
+/**
+ * collectd - contrib/docker/rootfs_prefix/rootfs_prefix.c
+ * Copyright (C) 2016-2018  Marc Fournier
+ * Copyright (C) 2016-2018  Ruben Kerkhof
+ *
+ * MIT License:
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * Authors:
+ *   Marc Fournier <marc.fournier at camptocamp.com>
+ *   Ruben Kerkhof <ruben at rubenkerkhof.com>
+ **/
+
 #define _GNU_SOURCE
 
 #include <dirent.h>
@@ -11,28 +41,22 @@
 #define BUFSIZE 256
 
 const char *add_prefix(const char *orig, char *prefixed) {
-  int status;
-  int errno;
-
-  if ((strncmp(orig, "/proc", 5) == 0) || (strncmp(orig, "/sys", 4) == 0)) {
-
-    status = snprintf(prefixed, BUFSIZE, "%s%s", PREFIX, orig);
-    if ((unsigned int)status >= BUFSIZE) {
-      error(status, ENAMETOOLONG,
-            "'%s' got truncated when adding '%s' prefix: '%s'", orig, PREFIX,
-            prefixed);
-      return orig;
-    } else if (status < 1) {
-      error(status, errno,
-            "adding '%s' prefix to file path failed: '%s' -> '%s'", PREFIX,
-            orig, prefixed);
-      return orig;
-    } else {
-      return (const char *)prefixed;
-    }
+  if ((strncmp(orig, "/proc", strlen("/proc")) != 0) &&
+      (strncmp(orig, "/sys", strlen("/sys")) != 0))
+    return orig;
 
-  } else {
+  int status = snprintf(prefixed, BUFSIZE, "%s%s", PREFIX, orig);
+  if (status < 1) {
+    error(status, errno, "adding '%s' prefix to file path failed: '%s' -> '%s'",
+          PREFIX, orig, prefixed);
+    return orig;
+  } else if ((unsigned int)status >= BUFSIZE) {
+    error(status, ENAMETOOLONG,
+          "'%s' got truncated when adding '%s' prefix: '%s'", orig, PREFIX,
+          prefixed);
     return orig;
+  } else {
+    return (const char *)prefixed;
   }
 }