diff options
Diffstat (limited to 'fwd_rule.c')
| -rw-r--r-- | fwd_rule.c | 40 |
1 files changed, 40 insertions, 0 deletions
@@ -24,6 +24,7 @@ #include "fwd_rule.h" #include "lineread.h" #include "log.h" +#include "serialise.h" /* Ephemeral port range: values from RFC 6335 */ static in_port_t fwd_ephemeral_min = (1 << 15) + (1 << 14); @@ -645,3 +646,42 @@ void fwd_rule_parse(char optname, const char *optarg, struct fwd_table *fwd) fwd_rule_parse_ports(fwd, proto, addr, ifname, spec); } + +/** + * fwd_rule_read() - Read serialised rule from an fd + * @fd: fd to deserialise from + * @rule: Buffer to store rule into + * + * Return: 0 on success, -1 on error (with errno set) + */ +int fwd_rule_read(int fd, struct fwd_rule *rule) +{ + if (read_all_buf(fd, rule, sizeof(*rule))) + return -1; + + /* Byteswap for host */ + rule->first = ntohs(rule->first); + rule->last = ntohs(rule->last); + rule->to = ntohs(rule->to); + + return 0; +} + +/** + * fwd_rule_write() - Serialise rule to an fd + * @fd: fd to serialise to + * @rule: Rule to send + * + * Return: 0 on success, -1 on error (with errno set) + */ +int fwd_rule_write(int fd, const struct fwd_rule *rule) +{ + struct fwd_rule tmp = *rule; + + /* Byteswap for transport */ + tmp.first = htons(tmp.first); + tmp.last = htons(tmp.last); + tmp.to = htons(tmp.to); + + return write_all_buf(fd, &tmp, sizeof(tmp)); +} |