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fix return value

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This commit is contained in:
Seven Du 2014-09-06 18:29:19 +08:00
parent 7be60474ab
commit aa15994c7f
1 changed files with 4 additions and 2 deletions
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6
src/switch_cpp.cpp
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@ -542,8 +542,10 @@ SWITCH_DECLARE(const char *) Stream::read(int *len)
buff = stream_p->read_function(stream_p, len);
if (!buff) return NULL;
if (len < 0) return NULL;
if (!buff || *len <= 0) {
*len = 0;
return NULL;
}
return (const char *)buff;
}