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udhcpc: fix truncation of last char in client hostnames

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This commit is contained in:
Denis Vlasenko 2009-04-21 00:41:57 +00:00
parent 0ad8234474
commit 76478b8091
1 changed files with 2 additions and 1 deletions
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3
networking/udhcp/leases.c
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@ -63,7 +63,8 @@ struct dhcpOfferedAddr* FAST_FUNC add_lease(
if (oldest) { if (oldest) {
oldest->hostname[0] = '\0'; oldest->hostname[0] = '\0';
if (hostname) { if (hostname) {
hostname_length = hostname[-1]; /* look at option size byte */ /* option size byte, + 1 for NUL */
hostname_length = hostname[-1] + 1;
if (hostname_length > sizeof(oldest->hostname)) if (hostname_length > sizeof(oldest->hostname))
hostname_length = sizeof(oldest->hostname); hostname_length = sizeof(oldest->hostname);
hostname = (uint8_t*) safe_strncpy((char*)oldest->hostname, (char*)hostname, hostname_length); hostname = (uint8_t*) safe_strncpy((char*)oldest->hostname, (char*)hostname, hostname_length);