e6dc439b3a
in order to fix the problems with round robin DNS reported
by Andrew Flegg:
http://busybox.net/lists/busybox/2003-October/009579.html
This removes the ipv6 specific xconnect dns lookups. I do
not see why that would need to be special cased for ipv6 as
was done, but that will just have to be tested.
So IPV6 people -- please test this change!
-Erik
68 lines
1.4 KiB
C
68 lines
1.4 KiB
C
/* vi: set sw=4 ts=4: */
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/*
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* Utility routines.
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*
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* Connect to host at port using address resolusion from getaddrinfo
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*
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*/
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#include <unistd.h>
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#include <string.h>
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#include <stdlib.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <errno.h>
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#include <netdb.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#include "libbb.h"
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int bb_getport(char *port)
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{
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int port_nr;
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char *endptr;
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struct servent *tserv;
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if (!port) {
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return -1;
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}
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port_nr=strtol(port, &endptr, 10);
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if (errno != 0 || *endptr!='\0' || endptr==port || port_nr < 1 || port_nr > 65536)
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{
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if (port_nr==0 && (tserv = getservbyname(port, "tcp")) != NULL) {
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port_nr = tserv->s_port;
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} else {
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return -1;
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}
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} else {
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port_nr = htons(port_nr);
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}
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return port_nr;
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}
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void bb_lookup_host(struct sockaddr_in *s_in, char *host, char *port)
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{
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struct hostent *he;
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memset(s_in, 0, sizeof(struct sockaddr_in));
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s_in->sin_family = AF_INET;
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he = xgethostbyname(host);
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memcpy(&(s_in->sin_addr), he->h_addr_list[0], he->h_length);
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if (port) {
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s_in->sin_port=bb_getport(port);
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}
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}
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int xconnect(struct sockaddr_in *s_addr)
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{
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int s = socket(AF_INET, SOCK_STREAM, 0);
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if (connect(s, (struct sockaddr_in *)s_addr, sizeof(struct sockaddr_in)) < 0)
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{
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bb_perror_msg_and_die("Unable to connect to remote host (%s)",
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inet_ntoa(s_addr->sin_addr));
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}
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return s;
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}
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