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Fixed of-by-one error in tor_inet_ntop

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The of-by-one error could lead to 1 byte buffer over runs IPv6 for addresses.
This commit is contained in:
Anders Sundman 2011-11-11 07:47:00 +01:00
parent f0589da0e3
commit 01e1dc0e62
1 changed files with 2 additions and 2 deletions
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4
src/common/compat.c
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@ -1632,7 +1632,7 @@ tor_inet_ntop(int af, const void *src, char *dst, size_t len)
addr->s6_addr[12], addr->s6_addr[13],
addr->s6_addr[14], addr->s6_addr[15]);
}
if (strlen(buf) > len)
if ((strlen(buf) + 1) > len) /* +1 for \0 */
return NULL;
strlcpy(dst, buf, len);
return dst;
@ -1673,7 +1673,7 @@ tor_inet_ntop(int af, const void *src, char *dst, size_t len)
}
}
*cp = '\0';
if (strlen(buf) > len)
if ((strlen(buf) + 1) > len) /* +1 for \0 */
return NULL;
strlcpy(dst, buf, len);
return dst;