diff options
Diffstat (limited to 'networking/nslookup.c')
| -rw-r--r-- | networking/nslookup.c | 48 |
1 files changed, 11 insertions, 37 deletions
diff --git a/networking/nslookup.c b/networking/nslookup.c index 50d91ab..2e65694 100644 --- a/networking/nslookup.c +++ b/networking/nslookup.c @@ -557,7 +557,11 @@ static int send_queries(struct ns *ns, struct query *queries, int n_queries) xconnect(pfd.fd, &ns->lsa->u.sa, ns->lsa->len); ndelay_on(pfd.fd); } - write(pfd.fd, queries[qn].query, queries[qn].qlen); + if (write(pfd.fd, queries[qn].query, queries[qn].qlen) < 0) { + bb_perror_msg("write to '%s'", ns->name); + close(pfd.fd); + return -1; /* "no go, try next server" */ + } } t1 = t2; @@ -710,36 +714,6 @@ static struct query *add_query(struct query **queries, int *n_queries, return new_q; } -//FIXME: use xmalloc_sockaddr2dotted[_noport]() instead of sal2str() - -#define SIZEOF_SAL2STR_BUF (INET6_ADDRSTRLEN + 1 + IFNAMSIZ + 1 + 5 + 1) -static char *sal2str(char buf[SIZEOF_SAL2STR_BUF], len_and_sockaddr *a) -{ - char *p = buf; - -#if ENABLE_FEATURE_IPV6 - if (a->u.sa.sa_family == AF_INET6) { - inet_ntop(AF_INET6, &a->u.sin6.sin6_addr, buf, SIZEOF_SAL2STR_BUF); - p += strlen(p); - - if (a->u.sin6.sin6_scope_id) { - if (if_indextoname(a->u.sin6.sin6_scope_id, p + 1)) { - *p++ = '%'; - p += strlen(p); - } - } - } else -#endif - { - inet_ntop(AF_INET, &a->u.sin.sin_addr, buf, SIZEOF_SAL2STR_BUF); - p += strlen(p); - } - - sprintf(p, "#%hu", ntohs(a->u.sin.sin_port)); - - return buf; -} - int nslookup_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; int nslookup_main(int argc UNUSED_PARAM, char **argv) { @@ -862,10 +836,10 @@ int nslookup_main(int argc UNUSED_PARAM, char **argv) for (rc = 0; rc < G.serv_count; rc++) { int c = send_queries(&G.server[rc], queries, n_queries); - if (c < 0) - bb_perror_msg_and_die("can't send queries"); if (c > 0) break; + /* c = 0: timed out waiting for replies */ + /* c < 0: error (message already printed) */ rc++; if (rc >= G.serv_count) { fprintf(stderr, @@ -875,10 +849,10 @@ int nslookup_main(int argc UNUSED_PARAM, char **argv) } printf("Server:\t\t%s\n", G.server[rc].name); - { - char buf[SIZEOF_SAL2STR_BUF]; - printf("Address:\t%s\n", sal2str(buf, G.server[rc].lsa)); - } + printf("Address:\t%s\n", xmalloc_sockaddr2dotted(&G.server[rc].lsa->u.sa)); + /* In "Address", bind-utils-9.11.3 show port after a hash: "1.2.3.4#53" */ + /* Should we do the same? */ + if (opts & OPT_stats) { printf("Replies:\t%d\n", G.server[rc].replies); printf("Failures:\t%d\n", G.server[rc].failures); |