diff options
Diffstat (limited to 'lookup.c')
| -rw-r--r-- | lookup.c | 23 |
1 files changed, 15 insertions, 8 deletions
@@ -15,8 +15,9 @@ #include "lookup.h" #include "xmalloc.h" -static struct hash_table lookup_port_tables[LT_MAX]; -static const char * const lookup_port_files[] = { +static bool lookup_initialized[LT_MAX]; +static struct hash_table lookup_tables[LT_MAX]; +static const char * const lookup_files[] = { [LT_PORTS_UDP] = ETCDIRE_STRING "/udp.conf", [LT_PORTS_TCP] = ETCDIRE_STRING "/tcp.conf", [LT_ETHERTYPES] = ETCDIRE_STRING "/ether.conf", @@ -38,8 +39,10 @@ void lookup_init(enum lookup_type which) void **pos; bug_on(which >= LT_MAX); - table = &lookup_port_tables[which]; - file = lookup_port_files[which]; + if (lookup_initialized[which]) + return; + table = &lookup_tables[which]; + file = lookup_files[which]; fp = fopen(file, "r"); if (!fp) { @@ -87,6 +90,7 @@ void lookup_init(enum lookup_type which) } fclose(fp); + lookup_initialized[which] = true; } static int __lookup_cleanup_single(void *ptr) @@ -113,10 +117,13 @@ void lookup_cleanup(enum lookup_type which) struct hash_table *table; bug_on(which >= LT_MAX); - table = &lookup_port_tables[which]; + if (!lookup_initialized[which]) + return; + table = &lookup_tables[which]; for_each_hash(table, __lookup_cleanup_single); free_hash(table); + lookup_initialized[which] = false; } #define __do_lookup_inline(id, hash_ptr) \ @@ -131,15 +138,15 @@ void lookup_cleanup(enum lookup_type which) char *lookup_ether_type(unsigned int id) { - return __do_lookup_inline(id, &lookup_port_tables[LT_ETHERTYPES]); + return __do_lookup_inline(id, &lookup_tables[LT_ETHERTYPES]); } char *lookup_port_udp(unsigned int id) { - return __do_lookup_inline(id, &lookup_port_tables[LT_PORTS_UDP]); + return __do_lookup_inline(id, &lookup_tables[LT_PORTS_UDP]); } char *lookup_port_tcp(unsigned int id) { - return __do_lookup_inline(id, &lookup_port_tables[LT_PORTS_TCP]); + return __do_lookup_inline(id, &lookup_tables[LT_PORTS_TCP]); } |