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Ensure NULL terminator is not written past end of allocated buffer.

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Darell Tan 2017-11-13 23:57:18 +08:00
parent db4e276662
commit 9f70ccd676
1 changed files with 4 additions and 0 deletions
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4
mdns.c
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@ -112,6 +112,10 @@ char *nlabel_to_str(const uint8_t *name) {
p += label_len; p += label_len;
} }
// avoid writing NULL past end of buffer
if (buf_len == 0)
labelp--;
*labelp = '\0'; *labelp = '\0';
return label; return label;