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Perform length and type checking in ifchange.c:fill_options.c().

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This commit is contained in:
Nicholas J. Kain
2011-03-30 10:13:34 -04:00
parent 1437f520ca
commit 7c32f968c9
3 changed files with 80 additions and 38 deletions
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10
ndhc/options.h
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@@ -51,8 +51,9 @@
#define DHCP_WPAD 0xfc
#define DHCP_END 0xff
enum {
OPTION_IP=1,
enum option_type {
OPTION_NONE = 0,
OPTION_IP,
OPTION_STRING,
OPTION_U8,
OPTION_U16,
@@ -63,13 +64,14 @@ enum {
struct dhcp_option {
char name[10];
char type;
enum option_type type;
unsigned char code;
};
extern struct dhcp_option options[];
extern int option_lengths[];
uint8_t option_length(enum option_type type);
int option_valid_list(uint8_t code);
size_t sizeof_option(unsigned char code, size_t datalen);
size_t set_option(unsigned char *buf, size_t buflen, unsigned char code,
unsigned char *optdata, size_t datalen);