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Better error checking in DHCPv6 dhcp-range option parsing.

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This commit is contained in:
Simon Kelley
2012-12-23 12:01:39 +00:00
parent d7346a1e8c
commit be37986a0f
1 changed files with 7 additions and 0 deletions
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7
src/option.c
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@@ -2371,6 +2371,13 @@ static int one_opt(int option, char *arg, char *errstr, char *gen_err, int comma
a[leasepos][strlen(a[leasepos]) - 1] = 0; a[leasepos][strlen(a[leasepos]) - 1] = 0;
} }
for (cp = a[leasepos]; *cp; cp++)
if (!(*cp >= '0' && *cp <= '9'))
break;
if (!cp || (leasepos+1 < k))
ret_err(_("bad dhcp-range"));
new->lease_time = atoi(a[leasepos]) * fac; new->lease_time = atoi(a[leasepos]) * fac;
/* Leases of a minute or less confuse /* Leases of a minute or less confuse
some clients, notably Apple's */ some clients, notably Apple's */