Make index_of_char() static again

Change-Id: I1c0d344c50ee5d78dd8247ccfe795ce0cd94aaa2
Reviewed-on: https://code.wireshark.org/review/17230
Reviewed-by: Balint Reczey <balint@balintreczey.hu>

1 files changed, 19 insertions, 0 deletions

diff --git a/epan/dissectors/packet-multipart.c b/epan/dissectors/packet-multipart.c
index f4297c0880..7b728b9455 100644
--- a/epan/dissectors/packet-multipart.c
+++ b/epan/dissectors/packet-multipart.c
@@ -311,6 +311,25 @@ unfold_and_compact_mime_header(const char *lines, gint *first_colon_offset)
     return (ret);
 }
 
+/* Return the index of a given char in the given string,
+ * or -1 if not found.
+ */
+static gint
+index_of_char(const char *str, const char c)
+{
+    gint len = 0;
+    const char *p = str;
+
+    while (*p && *p != c) {
+        p++;
+        len++;
+    }
+
+    if (*p)
+        return len;
+    return -1;
+}
+
 /* Retrieve the media information from pinfo->private_data,
  * and compute the boundary string and its length.
  * Return a pointer to a filled-in multipart_info_t, or NULL on failure.