diff options
Diffstat (limited to 'networking/udhcp/script.c')
| -rw-r--r-- | networking/udhcp/script.c | 33 |
1 files changed, 22 insertions, 11 deletions
diff --git a/networking/udhcp/script.c b/networking/udhcp/script.c index d2b0bb0..dc8ff7a 100644 --- a/networking/udhcp/script.c +++ b/networking/udhcp/script.c @@ -19,6 +19,9 @@ static const int max_option_length[] = { [OPTION_IP] = sizeof("255.255.255.255 "), [OPTION_IP_PAIR] = sizeof("255.255.255.255 ") * 2, [OPTION_STRING] = 1, +#if ENABLE_FEATURE_RFC3397 + [OPTION_STR1035] = 1, +#endif [OPTION_BOOLEAN] = sizeof("yes "), [OPTION_U8] = sizeof("255 "), [OPTION_U16] = sizeof("65535 "), @@ -53,21 +56,23 @@ static int mton(struct in_addr *mask) } -/* Fill dest with the text of option 'option'. */ -static void fill_options(char *dest, uint8_t *option, - const struct dhcp_option *type_p) +/* Allocate and fill with the text of option 'option'. */ +static char *alloc_fill_opts(uint8_t *option, const struct dhcp_option *type_p) { - int type, optlen; + int len, type, optlen; uint16_t val_u16; int16_t val_s16; uint32_t val_u32; int32_t val_s32; - int len = option[OPT_LEN - 2]; - - dest += sprintf(dest, "%s=", type_p->name); + char *dest, *ret; + len = option[OPT_LEN - 2]; type = type_p->flags & TYPE_MASK; optlen = option_lengths[type]; + + dest = ret = xmalloc(upper_length(len, type) + strlen(type_p->name) + 2); + dest += sprintf(ret, "%s=", type_p->name); + for (;;) { switch (type) { case OPTION_IP_PAIR: @@ -103,13 +108,21 @@ static void fill_options(char *dest, uint8_t *option, case OPTION_STRING: memcpy(dest, option, len); dest[len] = '\0'; - return; /* Short circuit this case */ + return ret; /* Short circuit this case */ +#if ENABLE_FEATURE_RFC3397 + case OPTION_STR1035: + /* unpack option into dest; use ret for prefix (i.e., "optname=") */ + dest = dname_dec(option, len, ret); + free(ret); + return dest; +#endif } option += optlen; len -= optlen; if (len <= 0) break; dest += sprintf(dest, " "); } + return ret; } @@ -155,9 +168,7 @@ static char **fill_envp(struct dhcpMessage *packet) temp = get_option(packet, dhcp_options[i].code); if (!temp) continue; - envp[j] = xmalloc(upper_length(temp[OPT_LEN - 2], - dhcp_options[i].flags & TYPE_MASK) + strlen(dhcp_options[i].name) + 2); - fill_options(envp[j++], temp, &dhcp_options[i]); + envp[j++] = alloc_fill_opts(temp, &dhcp_options[i]); /* Fill in a subnet bits option for things like /24 */ if (dhcp_options[i].code == DHCP_SUBNET) { |