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-rwxr-xr-xcallerid.c12
1 files changed, 7 insertions, 5 deletions
diff --git a/callerid.c b/callerid.c
index 283a5dee8..f616cae80 100755
--- a/callerid.c
+++ b/callerid.c
@@ -3,9 +3,9 @@
*
* CallerID Generation support
*
- * Copyright (C) 2001, Linux Support Services, Inc.
+ * Copyright (C) 2001-2004, Digium, Inc.
*
- * Mark Spencer <markster@linux-support.net>
+ * Mark Spencer <markster@digium.com>
*
* This program is free software, distributed under the terms of
* the GNU General Public License.
@@ -261,9 +261,11 @@ int callerid_feed(struct callerid_state *cid, unsigned char *ubuf, int len, int
ast_log(LOG_NOTICE, "Truncating long caller ID number from %d bytes to 32\n", cid->rawdata[x]);
res = 32;
}
- memcpy(cid->number, cid->rawdata + x + 1, res);
- /* Null terminate */
- cid->number[res] = '\0';
+ if (ast_strlen_zero(cid->number)) {
+ memcpy(cid->number, cid->rawdata + x + 1, res);
+ /* Null terminate */
+ cid->number[res] = '\0';
+ }
break;
case 7: /* Name */
case 8: /* Name */