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112 lines
2.3 KiB
C
112 lines
2.3 KiB
C
#include "stx.h"
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#define MAX_ADDRS 128
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#define TIMEOUT (4*1000000LL)
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static void do_resolve(const char *host)
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{
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struct in_addr addrs[MAX_ADDRS];
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int i, n = MAX_ADDRS;
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if (stx_dns_getaddrlist(host, addrs, &n, TIMEOUT) < 0) {
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fprintf(stderr, "stx_dns_getaddrlist: can't resolve %s: ", host);
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if (h_errno == NETDB_INTERNAL)
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perror("");
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else
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herror("");
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} else {
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if (n > 0)
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printf("%-40s %s\n", (char *)host, inet_ntoa(addrs[0]));
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for (i = 1; i < n; i++)
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printf("%-40s %s\n", "", inet_ntoa(addrs[i]));
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}
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}
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static void show_info(void)
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{
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stx_cache_info_t info;
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stx_dns_cache_getinfo(&info);
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printf("DNS cache info:\n\n");
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printf("max_size: %8d\n", (int)info.max_size);
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printf("capacity: %8d bytes\n", (int)info.max_weight);
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printf("hash_size: %8d\n", (int)info.hash_size);
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printf("cur_size: %8d\n"
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"cur_mem: %8d bytes\n"
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"hits: %8d\n"
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"lookups: %8d\n"
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"inserts: %8d\n"
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"deletes: %8d\n",
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(int)info.cur_size, (int)info.cur_weight, (int)info.hits,
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(int)info.lookups, (int)info.inserts, (int)info.deletes);
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}
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extern stx_cache_t *_stx_dns_cache;
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static void printhost(void *host, void *data)
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{
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printf("%s\n", (char *)host);
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}
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static void show_lru(void)
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{
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printf("LRU hosts:\n\n");
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stx_cache_traverse_lru(_stx_dns_cache, printhost, 10);
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}
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static void show_mru(void)
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{
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printf("MRU hosts:\n\n");
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stx_cache_traverse_mru(_stx_dns_cache, printhost, 10);
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}
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static void flush_cache(void)
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{
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stx_cache_empty(_stx_dns_cache);
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printf("DNS cache is empty\n");
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}
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int main()
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{
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char line[256];
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char str[sizeof(line)];
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st_init();
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stx_dns_cache_init(100, 10000, 101);
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for ( ; ; ) {
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fputs("> ", stdout);
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fflush(stdout);
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if (!fgets(line, sizeof(line), stdin))
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break;
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if (sscanf(line, "%s", str) != 1)
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continue;
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if (strcmp(str, "exit") == 0 || strcmp(str, "quit") == 0)
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break;
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if (strcmp(str, "info") == 0) {
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show_info();
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continue;
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}
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if (strcmp(str, "lru") == 0) {
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show_lru();
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continue;
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}
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if (strcmp(str, "mru") == 0) {
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show_mru();
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continue;
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}
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if (strcmp(str, "flush") == 0) {
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flush_cache();
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continue;
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}
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do_resolve(str);
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}
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return 0;
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}
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