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Diffstat (limited to 'networking/udhcp/options.c')
-rw-r--r--networking/udhcp/options.c30
1 files changed, 15 insertions, 15 deletions
diff --git a/networking/udhcp/options.c b/networking/udhcp/options.c
index 1bdf257..d75bc5a 100644
--- a/networking/udhcp/options.c
+++ b/networking/udhcp/options.c
@@ -1,8 +1,8 @@
-/*
- * options.c -- DHCP server option packet tools
+/*
+ * options.c -- DHCP server option packet tools
* Rewrite by Russ Dill <Russ.Dill@asu.edu> July 2001
*/
-
+
#include <stdlib.h>
#include <string.h>
@@ -64,7 +64,7 @@ uint8_t *get_option(struct dhcpMessage *packet, int code)
int i, length;
uint8_t *optionptr;
int over = 0, done = 0, curr = OPTION_FIELD;
-
+
optionptr = packet->options;
i = 0;
length = 308;
@@ -79,7 +79,7 @@ uint8_t *get_option(struct dhcpMessage *packet, int code)
return NULL;
}
return optionptr + i + 2;
- }
+ }
switch (optionptr[i + OPT_CODE]) {
case DHCP_PADDING:
i++;
@@ -114,10 +114,10 @@ uint8_t *get_option(struct dhcpMessage *packet, int code)
/* return the position of the 'end' option (no bounds checking) */
-int end_option(uint8_t *optionptr)
+int end_option(uint8_t *optionptr)
{
int i = 0;
-
+
while (optionptr[i] != DHCP_END) {
if (optionptr[i] == DHCP_PADDING) i++;
else i += optionptr[i + OPT_LEN] + 2;
@@ -131,7 +131,7 @@ int end_option(uint8_t *optionptr)
int add_option_string(uint8_t *optionptr, uint8_t *string)
{
int end = end_option(optionptr);
-
+
/* end position + string length + option code/length + end option */
if (end + string[OPT_LEN] + 2 + 1 >= 308) {
LOG(LOG_ERR, "Option 0x%02x did not fit into the packet!", string[OPT_CODE]);
@@ -162,12 +162,12 @@ int add_simple_option(uint8_t *optionptr, uint8_t code, uint32_t data)
if (dhcp_options[i].code == code) {
length = option_lengths[dhcp_options[i].flags & TYPE_MASK];
}
-
+
if (!length) {
DEBUG(LOG_ERR, "Could not add option 0x%02x", code);
return 0;
}
-
+
option[OPT_CODE] = code;
option[OPT_LEN] = length;
@@ -202,7 +202,7 @@ void attach_option(struct option_set **opt_list, struct dhcp_option *option, cha
DEBUG(LOG_INFO, "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 = realloc(existing->data,
existing->data[OPT_LEN] + length + 2);
memcpy(existing->data + existing->data[OPT_LEN] + 2, buffer, length);
existing->data[OPT_LEN] += length;
@@ -210,19 +210,19 @@ void attach_option(struct option_set **opt_list, struct dhcp_option *option, cha
} /* else, ignore the new data */
} else {
DEBUG(LOG_INFO, "Attaching option %s to list", option->name);
-
+
/* make a new option */
new = xmalloc(sizeof(struct option_set));
new->data = xmalloc(length + 2);
new->data[OPT_CODE] = option->code;
new->data[OPT_LEN] = length;
memcpy(new->data + 2, buffer, length);
-
+
curr = opt_list;
while (*curr && (*curr)->data[OPT_CODE] < option->code)
curr = &(*curr)->next;
-
+
new->next = *curr;
- *curr = new;
+ *curr = new;
}
}