From 228f03ae870a880886c2c2550eab702112e5165e Mon Sep 17 00:00:00 2001
From: "Kevin P. Fleming" <kpfleming@digium.com>
Date: Wed, 6 Apr 2005 03:43:59 +0000
Subject: [PATCH] use more efficient code to produce non-codec-capability list
(bug #3960)
git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@5421 65c4cc65-6c06-0410-ace0-fbb531ad65f3
---
rtp.c | 22 ++++++++++++++++++----
1 file changed, 18 insertions(+), 4 deletions(-)
diff --git a/rtp.c b/rtp.c
index d4989db004..41f37b33fe 100755
--- a/rtp.c
+++ b/rtp.c
@@ -853,21 +853,35 @@ char* ast_rtp_lookup_mime_subtype(const int isAstFormat, const int code) {
char *ast_rtp_lookup_mime_multiple(char *buf, int size, const int capability, const int isAstFormat)
{
int format;
+ unsigned len;
+ char *end = buf;
+ char *start = buf;
if (!buf || !size)
return NULL;
- snprintf(buf, size, "0x%x (", capability);
+ snprintf(end, size, "0x%x (", capability);
+
+ len = strlen(end);
+ end += len;
+ size -= len;
+ start = end;
for (format = 1; format < AST_RTP_MAX; format <<= 1) {
if (capability & format) {
const char *name = ast_rtp_lookup_mime_subtype(isAstFormat, format);
- snprintf(buf + strlen(buf), size - strlen(buf), "%s|", name);
+ snprintf(end, size, "%s|", name);
+ len = strlen(end);
+ end += len;
+ size -= len;
}
}
- if (!ast_strlen_zero(buf))
- buf[strlen(buf)] = ')';
+ if (start == end)
+ snprintf(start, size, "nothing)");
+ else if (size > 1)
+ *(end -1) = ')';
+
return buf;
}
--
GitLab