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udhcpd: allow "domain" to be a list of DNS servers, not just one

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This commit is contained in:
Denis Vlasenko 2007-02-02 01:16:08 +00:00
parent de55b5d014
commit c4d606e367
2 changed files with 21 additions and 13 deletions
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32
networking/udhcp/files.c
View File

@ -101,19 +101,8 @@ static void attach_option(struct option_set **opt_list,
{
struct option_set *existing, *new, **curr;
/* add it to an existing option */
existing = find_option(*opt_list, option->code);
if (existing) {
DEBUG("Attaching option %s to existing member of list", option->name);
if (option->flags & OPTION_LIST) {
if (existing->data[OPT_LEN] + length <= 255) {
existing->data = realloc(existing->data,
existing->data[OPT_LEN] + length + 2);
memcpy(existing->data + existing->data[OPT_LEN] + 2, buffer, length);
existing->data[OPT_LEN] += length;
} /* else, ignore the data, we could put this in a second option in the future */
} /* else, ignore the new data */
} else {
if (!existing) {
DEBUG("Attaching option %s to list", option->name);
/* make a new option */
@ -129,7 +118,26 @@ static void attach_option(struct option_set **opt_list,
new->next = *curr;
*curr = new;
return;
}
/* add it to an existing option */
DEBUG("Attaching option %s to existing member of list", option->name);
if (option->flags & OPTION_LIST) {
if (existing->data[OPT_LEN] + length <= 255) {
existing->data = xrealloc(existing->data,
existing->data[OPT_LEN] + length + 3);
if ((option->flags & TYPE_MASK) == OPTION_STRING) {
if (existing->data[OPT_LEN] + length >= 255)
return;
/* add space separator between STRING options in a list */
existing->data[existing->data[OPT_LEN] + 2] = ' ';
existing->data[OPT_LEN]++;
}
memcpy(existing->data + existing->data[OPT_LEN] + 2, buffer, length);
existing->data[OPT_LEN] += length;
} /* else, ignore the data, we could put this in a second option in the future */
} /* else, ignore the new data */
}

2
networking/udhcp/options.c
View File

@ -23,7 +23,7 @@ const struct dhcp_option dhcp_options[] = {
{"lprsvr", OPTION_IP | OPTION_LIST, 0x09},
{"hostname", OPTION_STRING | OPTION_REQ, 0x0c},
{"bootsize", OPTION_U16, 0x0d},
{"domain", OPTION_STRING | OPTION_REQ, 0x0f},
{"domain", OPTION_STRING | OPTION_LIST | OPTION_REQ, 0x0f},
{"swapsvr", OPTION_IP, 0x10},
{"rootpath", OPTION_STRING, 0x11},
{"ipttl", OPTION_U8, 0x17},