Remove trailing whitespace. Update copyright to include 2004.
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@ -1,8 +1,8 @@
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/*
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* options.c -- DHCP server option packet tools
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/*
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* options.c -- DHCP server option packet tools
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* Rewrite by Russ Dill <Russ.Dill@asu.edu> July 2001
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*/
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#include <stdlib.h>
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#include <string.h>
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@ -64,7 +64,7 @@ uint8_t *get_option(struct dhcpMessage *packet, int code)
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int i, length;
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uint8_t *optionptr;
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int over = 0, done = 0, curr = OPTION_FIELD;
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optionptr = packet->options;
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i = 0;
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length = 308;
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@ -79,7 +79,7 @@ uint8_t *get_option(struct dhcpMessage *packet, int code)
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return NULL;
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}
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return optionptr + i + 2;
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}
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}
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switch (optionptr[i + OPT_CODE]) {
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case DHCP_PADDING:
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i++;
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@ -114,10 +114,10 @@ uint8_t *get_option(struct dhcpMessage *packet, int code)
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/* return the position of the 'end' option (no bounds checking) */
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int end_option(uint8_t *optionptr)
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int end_option(uint8_t *optionptr)
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{
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int i = 0;
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while (optionptr[i] != DHCP_END) {
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if (optionptr[i] == DHCP_PADDING) i++;
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else i += optionptr[i + OPT_LEN] + 2;
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@ -131,7 +131,7 @@ int end_option(uint8_t *optionptr)
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int add_option_string(uint8_t *optionptr, uint8_t *string)
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{
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int end = end_option(optionptr);
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/* end position + string length + option code/length + end option */
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if (end + string[OPT_LEN] + 2 + 1 >= 308) {
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LOG(LOG_ERR, "Option 0x%02x did not fit into the packet!", string[OPT_CODE]);
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@ -162,12 +162,12 @@ int add_simple_option(uint8_t *optionptr, uint8_t code, uint32_t data)
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if (dhcp_options[i].code == code) {
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length = option_lengths[dhcp_options[i].flags & TYPE_MASK];
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}
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if (!length) {
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DEBUG(LOG_ERR, "Could not add option 0x%02x", code);
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return 0;
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}
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option[OPT_CODE] = code;
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option[OPT_LEN] = length;
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@ -202,7 +202,7 @@ void attach_option(struct option_set **opt_list, struct dhcp_option *option, cha
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DEBUG(LOG_INFO, "Attaching option %s to existing member of list", option->name);
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if (option->flags & OPTION_LIST) {
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if (existing->data[OPT_LEN] + length <= 255) {
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existing->data = realloc(existing->data,
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existing->data = realloc(existing->data,
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existing->data[OPT_LEN] + length + 2);
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memcpy(existing->data + existing->data[OPT_LEN] + 2, buffer, length);
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existing->data[OPT_LEN] += length;
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@ -210,19 +210,19 @@ void attach_option(struct option_set **opt_list, struct dhcp_option *option, cha
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} /* else, ignore the new data */
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} else {
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DEBUG(LOG_INFO, "Attaching option %s to list", option->name);
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/* make a new option */
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new = xmalloc(sizeof(struct option_set));
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new->data = xmalloc(length + 2);
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new->data[OPT_CODE] = option->code;
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new->data[OPT_LEN] = length;
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memcpy(new->data + 2, buffer, length);
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curr = opt_list;
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while (*curr && (*curr)->data[OPT_CODE] < option->code)
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curr = &(*curr)->next;
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new->next = *curr;
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*curr = new;
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*curr = new;
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}
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}
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